Display device and vehicle including the same

Abstract

A display device and a vehicle including the display device are provided. The display device includes: a display panel configured to display an image; a driving circuit at a rear surface of the display panel, the driving circuit including a flexible circuit film connected to the display panel and a printed circuit board connected to the flexible circuit film; a first support member at the rear surface of the display panel, the first support member having a hole therein; and a vibration device supported by the first support member, the vibration device including a first vibration device at the rear surface of the display panel. The flexible circuit film extends through the hole, and the printed circuit board is disposed at a rear surface of the first support member.

Description

Technical Field

[0001] The present disclosure relates to a display device and a vehicle including the display device. Background Art

[0002] Display devices are equipped in household appliances or electronic devices such as televisions (TVs), monitors, laptop computers, smartphones, tablet computers, electronic notepads, electronic boards, wearable devices, watch phones, portable information devices, navigation devices, and automotive control display devices. The display device is used as a screen for displaying images.

[0003] A display device may include a display panel for displaying an image and a sound device for outputting sound associated with the image. However, in a general display device, since the sound output from the sound device can propagate backward or along the downward direction of the display device, the sound quality deteriorates due to interference between the sound reflected from the wall and the ground. Therefore, it may be difficult to transmit accurate sound, and the immersion of the viewer is reduced. Summary of the Invention

[0004] Accordingly, the present disclosure relates to a display device and a vehicle including the display device that substantially eliminates one or more problems caused by the limitations and disadvantages of the prior art.

[0005] The inventors of the present disclosure have recognized the problems of general display devices and have conducted various experiments such that when a user in front of the display panel is viewing an image, the propagation direction of the sound is toward the front surface of the display panel. Therefore, the sound quality can be improved. Thus, through various experiments, the inventors have invented a display device that can generate sound that propagates to the forward area in front of the display panel, thereby enhancing the sound quality.

[0006] One aspect of the present disclosure is to provide a display device and a vehicle including the display device that outputs sound to a forward area in front of the display panel.

[0007] Another aspect of the present disclosure is to provide a display device and a vehicle including the display device that improve the sound quality and increase the immersive experience of the viewer or listener.

[0008] Another aspect of the present disclosure is to provide a display device and a vehicle including the display device that reduce, prevent, or minimize damage to a driving circuit caused by vibration of the display panel.

[0009] Another aspect of the present disclosure is to provide a display device and a vehicle including the display device that enhance the degree of freedom in the arrangement of vibration devices.

[0010] Another aspect of the present disclosure is to provide a display device including a vibration device for enhancing the sound performance and efficiency of vibrations transmitted to a display panel, and a vehicle including the display device.

[0011] Another aspect of the present disclosure is to provide a display device capable of simultaneously generating sound and haptic feedback, and a vehicle including the display device.

[0012] Another aspect of the present disclosure is to provide a display device capable of simultaneously generating sound and haptic feedback and capable of generating sound having enhanced sound pressure level characteristics, and a vehicle including the display device.

[0013] Other features and advantages will be described in the following description, and will be partly apparent from the description, or can be learned by practice of the inventive concept provided herein. Other features and aspects of the inventive concept can be realized and obtained by the structures specifically pointed out in the written description or the content derived therefrom and its claims, as well as the drawings.

[0014] To achieve these and other aspects of the inventive concept as implemented and broadly described herein, a display device includes: a display panel configured to display an image; a driving circuit at a rear surface of the display panel, the driving circuit including a flexible circuit film connected to the display panel and a printed circuit board connected to the flexible circuit film; a first support member at the rear surface of the display panel, the first support member having a hole therein; and a vibration device supported by the first support member, the vibration device including a first vibration device at the rear surface of the display panel, the flexible circuit film extending through the hole, and the printed circuit board disposed at a rear surface of the first support member.

[0015] In another aspect, a display device is provided, which includes: a display panel configured to display an image; a driving circuit at a rear surface of the display panel, the driving circuit including a flexible circuit film connected to the display panel and a printed circuit board connected to the flexible circuit film; a support member at the rear surface of the display panel, the support member including an opening area; and a vibration device supported by the first support member, the vibration device including a first vibration device disposed at the rear surface of the display panel, the flexible circuit film extending through the opening area, and the printed circuit board disposed at a rear surface of the support member.

[0016] In another aspect, a vehicle includes: a dashboard that includes a first region facing a driver seat, a second region facing a passenger seat, and a third region between the first region and the second region; a dashboard device that includes a first display at the first region of the dashboard; and an infotainment device that includes one or more of a second display at the third region of the dashboard, a third display at the second region of the dashboard, a fourth display at a rear surface of the driver seat, and a fifth display at a rear surface of the passenger seat, one or more of the first through fifth displays including a display device that includes: a display panel configured to display an image; a driving circuit that includes a flexible circuit film connected to the display panel and a printed circuit board connected to the flexible circuit film; a first support member at a rear surface of the display panel, the first support member including a hole; and a vibration device supported by the first support member, the vibration device including a first vibration device at the rear surface of the display panel, wherein the flexible circuit film extends through the hole and the printed circuit board is disposed at a rear surface of the first support member.

[0017] In another aspect, a vehicle includes: a dashboard configured to include a first region facing a driver seat, a second region facing a passenger seat, and a third region between the first region and the second region; a dashboard device that includes a first display at the first region of the dashboard; and an infotainment device that includes one or more of a second display at the third region of the dashboard, a third display at the second region of the dashboard, a fourth display at a rear surface of the driver seat, and a fifth display at a rear surface of the passenger seat, one or more of the first through fifth displays including the display device that includes: a display panel configured to display an image; a driving circuit that includes a flexible circuit film connected to the display panel and a printed circuit board connected to the flexible circuit film; a support member at a rear surface of the display panel, the support member including an opening region; and a vibration device supported by the first support member, the vibration device including a first vibration device at the rear surface of the display panel, the flexible circuit film extending through the opening region and the printed circuit board being disposed at a rear surface of the support member.

[0018] Other systems, methods, features, and advantages will be or will become apparent to those skilled in the art upon viewing the following drawings and detailed description. All such other systems, methods, features, and advantages are intended to be included within this specification, within the scope of the present disclosure, and are protected by the appended claims. Any content in this section should not be construed as a limitation on these claims. Other aspects and advantages may be discussed in connection with embodiments of the present disclosure. It should be understood that the foregoing summary of the present disclosure and the following detailed description may both be exemplary and explanatory and are intended to provide further explanation of the claimed present disclosure.

[0019] Note 1. A display device, the display device comprising:

[0020] A display panel configured to display an image;

[0021] A driving circuit located at a rear surface of the display panel, the driving circuit comprising:

[0022] A flexible circuit film connected to the display panel; and

[0023] A printed circuit board connected to the flexible circuit film;

[0024] A first support member located at the rear surface of the display panel, having a hole therein; and

[0025] A vibration device supported by the first support member, the vibration device comprising a first vibration device located at the rear surface of the display panel,

[0026] wherein the flexible circuit film extends through the hole, and

[0027] wherein the printed circuit board is disposed at the rear surface of the first support member.

[0028] Note 2. The display device according to Note 1, wherein the printed circuit board includes a first substrate region overlapping the first support member, a second substrate region overlapping the first support member and the vibration device, and a third substrate region overlapping the vibration device.

[0029] Note 3. The display device according to Note 1, wherein the driving circuit further includes a control board, a signal transmission member, a timing control circuit, a user connector, and a vibration driving circuit.

[0030] Note 4. The display device according to Note 1, wherein the display device further includes a second support member located at a periphery of the rear surface of the first support member,

[0031] Wherein, the printed circuit board is located at the second support member.

[0032] Appendix 5. The display device according to Appendix 1, wherein the display device further comprises:

[0033] A front member located at the front surface of the display panel; and

[0034] A support frame located at the rear surface of the front member, the support frame surrounding the side surface of the display panel,

[0035] Wherein, the first support member is disposed at the rear surface of the support frame.

[0036] Appendix 6. The display device according to Appendix 5, wherein the support frame includes a plurality of connecting portions spaced apart from each other at one surface or a part of the support frame.

[0037] Appendix 7. The display device according to Appendix 5, wherein the support frame includes an opening located at the rear peripheral portion of the front member, the opening overlapping with the display panel or an opening in the central region of the display device.

[0038] Appendix 8. The display device according to Appendix 5, wherein,

[0039] The support frame is configured to support four peripheries of the upper periphery, lower periphery, left periphery and right periphery of the front member, and

[0040] The four peripheries of the front member are supported by the support frame.

[0041] Appendix 9. The display device according to Appendix 4, wherein the display device further comprises a third support member located between the second support member and the printed circuit board.

[0042] Appendix 10. The display device according to Appendix 1, wherein the first support member includes:

[0043] A (1-1) plate located at the rear surface of the display panel, the (1-1) plate being configured to support the first vibration device;

[0044] A forming portion extending from the (1-1) plate in the outward direction of the (1-1) plate; and

[0045] A (1-2) plate extending from the forming portion in the outward direction of the (1-1) plate.

[0046] Supplementary Note 11. The display device according to Supplementary Note 10, wherein the first support member further includes a vibration device accommodation hole located at the (1-1)th plate.

[0047] Supplementary Note 12. The display device according to Supplementary Note 10, wherein the first support member further includes a wire hole or a wiring hole, and a wire or a wiring is disposed through the wire hole or the wiring hole at the (1-1)th plate.

[0048] Supplementary Note 13. The display device according to Supplementary Note 10, wherein the first support member further includes a dummy hole located at the (1-1)th plate.

[0049] Supplementary Note 14. The display device according to Supplementary Note 10, wherein the first support member further includes a hole located at the (1-1)th plate and configured to couple or connect the first support member to a support device.

[0050] Supplementary Note 15. The display device according to Supplementary Note 10, wherein the first support member further includes a hole located at the (1-1)th plate and configured to couple or connect the first support member to the vibration device.

[0051] Supplementary Note 16. The display device according to Supplementary Note 10, wherein the forming portion includes a first sub-forming portion that extends from an outer portion of the (1-1)th plate in an outward direction of the (1-1)th plate to have an inclined surface facing a rear surface of the display panel.

[0052] Supplementary Note 17. The display device according to Supplementary Note 10, wherein the forming portion includes:

[0053] A first sub-forming portion that extends from an outer portion of the (1-1)th plate in an outward direction of the (1-1)th plate to have an inclined surface facing a rear surface of the display panel;

[0054] A second sub-forming portion that extends from an outer portion of the first sub-forming portion in an outward direction of the (1-1)th plate to be horizontal with the display panel; and

[0055] A third sub-forming portion that extends from an outer portion of the second sub-forming portion in an outward direction of the (1-1)th plate to have an inclined surface facing a rear surface of the display panel.

[0056] Supplementary Note 18. The display device according to Supplementary Note 10, wherein the forming portion includes:

[0057] A first sub-forming portion that extends in the outward direction of the (1-1)th plate, the first sub-forming portion including an inclined surface that faces the rear surface of the display panel from the outer end portion of the (1-1)th plate; and

[0058] A second sub-forming portion that extends from the first sub-forming portion in the outward direction of the (1-1)th plate.

[0059] Note 19. The display device according to Note 10, wherein the forming portion includes:

[0060] A first sub-forming portion that extends from the (1-1)th plate in the outward direction or a side direction of the (1-1)th plate.

[0061] Note 20. The display device according to Note 4, wherein the second support member includes a (2-1)th plate located at a first surface of the first support member, and the (2-1)th plate is horizontal with the display panel.

[0062] Note 21. The display device according to Note 20, wherein the second support member further includes a (2-2)th plate located at a rear surface of the first support member, and the (2-2)th plate extends from the (2-1)th plate.

[0063] Note 22. The display device according to Note 21, wherein the second support member further includes a (2-3)th plate that extends from the (2-2)th plate along the rear surface of the first support member in the central direction of the first support member.

[0064] Note 23. The display device according to Note 20, the display device further includes a (3-1)th support member located at a rear surface of the (2-1)th plate,

[0065] wherein the printed circuit board is disposed at the (3-1)th support member.

[0066] Note 24. The display device according to Note 21, the display device further includes:

[0067] A (3-1)th support member located at a rear surface of the (2-1)th plate; and

[0068] A (3-2)th support member that extends from the (3-1)th support member along a portion of the (2-2)th plate,

[0069] wherein the flexible circuit film extends through the hole, and

[0070] Among them, the flexible circuit film is disposed at the (3-2)th support member.

[0071] Supplementary Note 25. The display device according to Supplementary Note 21 further includes a (3-3)th support member located between the rear surface of the first support member and the (2-2)th plate.

[0072] Supplementary Note 26. The display device according to Supplementary Note 22 further includes:

[0073] a (3-1)th support member located at the rear surface of the (2-1)th plate;

[0074] a (3-2)th support member extending from the (3-1)th support member along a part of the (2-2)th plate; and

[0075] a (3-4)th support member located between the rear surface of the first support member and the (2-3)th plate.

[0076] Supplementary Note 27. The display device according to Supplementary Note 1 further includes a heat dissipation member located between the rear surface of the display panel and the first vibration device.

[0077] Supplementary Note 28. The display device according to Supplementary Note 5 further includes a connection member located between the display panel and the first support member,

[0078] wherein the connection member is located between the first vibration device and the hole, and

[0079] wherein the connection member is disposed at the periphery of the first support member.

[0080] Supplementary Note 29. The display device according to Supplementary Note 28, wherein the connection member includes an adhesive resin, a double-sided tape with an adhesive layer, or a double-sided foam pad with an adhesive layer.

[0081] Supplementary Note 30. The display device according to Supplementary Note 28, wherein,

[0082] the connection member is adjacent to the periphery of the support frame, and

[0083] each of the two sides of the connection member in the length direction of the connection member contacts the periphery of the support frame.

[0084] Supplementary Note 31. The display device according to Supplementary Note 1 further includes a support device located between the rear surface of the first vibration device and the first support member, and the support member supports the first vibration device.

[0085] Supplementary Note 32. The display device according to Supplementary Note 31, wherein the support device includes:

[0086] a support portion configured to support the first vibration device;

[0087] a receiving portion in which a part of the rear surface of the first vibration device is received; and

[0088] a connecting portion configured to connect the first support member and the first vibration device.

[0089] Supplementary Note 33. The display device according to Supplementary Note 32, wherein the connecting portion includes a protruding portion that protrudes from the periphery of the support portion and has a hook shape.

[0090] Supplementary Note 34. The display device according to Supplementary Note 32, wherein the support device further includes:

[0091] a connection hole provided by the support portion and the connecting portion.

[0092] Supplementary Note 35. The display device according to Supplementary Note 1, the display device further includes a rear cover located at the rear surface of the first support member, and the rear cover includes:

[0093] a first cover configured to cover the rear surface of the first support member; and

[0094] a second cover disposed along the periphery of the first cover, the second cover being configured to cover the side surface of the display panel.

[0095] Supplementary Note 36. The display device according to Supplementary Note 5, the display device further includes a rear cover located at the rear surface of the first support member, and the rear cover includes:

[0096] a first cover configured to cover the rear surface of the first support member; and

[0097] a second cover disposed along the periphery of the first cover, the second cover being configured to cover the side surface of the support frame.

[0098] Supplementary Note 37. The display device according to Supplementary Note 1, the display device further includes a rear cover located at the rear surface of the first support member, and the rear cover includes:

[0099] a first cover configured to cover the rear surface of the first support member;

[0100] A second cover disposed along a periphery of the first cover and configured to cover a side surface of the display panel; and

[0101] A third cover located at another periphery of the first cover opposite to the one periphery, the third cover being configured to cover a side surface of the vibration device exposed at a rear surface of the first support member.

[0102] Item 38. The display device according to Item 35, wherein the first cover is configured to cover:

[0103] A rear surface of the first vibration device exposed at a rear surface of the first support member; and

[0104] A printed circuit board located at the rear surface of the first support member.

[0105] Item 39. The display device according to Item 36, wherein the first cover is configured to cover:

[0106] A rear surface of the first vibration device exposed at a rear surface of the first support member; and

[0107] A printed circuit board located at the rear surface of the first support member.

[0108] Item 40. The display device according to Item 35, the display device further comprising a support structure located between the first support member and the rear cover.

[0109] Item 41. The display device according to Item 36, the display device further comprising a support structure located between the first support member and the rear cover.

[0110] Item 42. The display device according to Item 1, wherein the vibration device further comprises a second vibration device located at a rear surface of the display panel, the second vibration device being configured to vibrate the display panel.

[0111] Item 43. The display device according to Item 42, wherein

[0112] The first vibration device includes at least one coil-type vibration device, and

[0113] The second vibration device includes at least one film-type vibration device.

[0114] Item 44. The display device according to Item 42, wherein

[0115] The first vibration device is located at a central portion of a rear surface of the display panel,

[0116] The second vibration device is located at a peripheral portion of the rear surface of the display panel,

[0117] The first vibration device is configured to vibrate a central portion of the rear surface of the display panel to generate at least one of sound and haptic feedback, and

[0118] The second vibration device is configured to vibrate a peripheral portion of the rear surface of the display panel to generate sound.

[0119] Note 45. The display device according to Note 44, wherein,

[0120] The first vibration device is configured to vibrate a central portion of the rear surface of the display panel to generate at least one of the following:

[0121] Sound of a first tone vocal cord; and

[0122] Haptic feedback of a third tone vocal cord, and

[0123] The second vibration device is configured to vibrate a peripheral portion of the rear surface of the display panel to generate sound of a second tone vocal cord.

[0124] Note 46. The display device according to Note 44, wherein,

[0125] The first vibration device includes 2m vibration devices, where m is a natural number,

[0126] Among the 2m vibration devices, the first m vibration devices are disposed at one or more of a left central portion and a right central portion of the rear surface of the display panel,

[0127] Among the 2m vibration devices, the second m vibration devices are disposed at the other central portion of the rear surface of the display panel, and

[0128] The first m vibration devices generate sound, and the second m vibration devices simultaneously generate haptic feedback, or

[0129] The first m vibration devices generate haptic feedback, and the second m vibration devices simultaneously generate sound.

[0130] Note 47. The display device according to Note 44,

[0131] wherein the second vibration device includes 2n vibration devices, where n is a natural number, and

[0132] Among them, the first n vibration devices among the 2n vibration devices are arranged at the first peripheral part of the display panel, and the second n vibration devices among the 2n vibration devices are arranged at the second peripheral part of the display panel.

[0133] Supplementary Note 48. The display device according to Supplementary Note 45, wherein the driving circuit includes a vibration driving circuit configured to:

[0134] Equalize the signal having the frequency of the first tone vocal band included in the driving signal provided to the vibration driving circuit; and

[0135] Drive the first vibration device based on the equalized signal to generate sound.

[0136] Supplementary Note 49. The display device according to Supplementary Note 48, wherein,

[0137] The third tone vocal band is included in the first tone vocal band, and

[0138] When the vibration driving circuit drives the first vibration device to generate sound and haptic feedback simultaneously, the vibration driving circuit is further configured to drive the first vibration device based on the signal having the frequency of the other tone vocal bands in the frequency of the first tone vocal band that does not correspond to the frequency of the third tone vocal band to generate the sound of the fourth tone vocal band.

[0139] Supplementary Note 50. The display device according to Supplementary Note 1, wherein the vibration device includes:

[0140] A piezoelectric vibration part including a piezoelectric material, a composite piezoelectric material, or an electroactive material having a piezoelectric effect;

[0141] A first electrode part located at the first surface of the piezoelectric vibration part and electrically connected to the first surface of the piezoelectric vibration part; and

[0142] A second electrode part located at the second surface of the piezoelectric vibration part opposite to the first surface and electrically connected to the second surface of the piezoelectric vibration part.

[0143] Supplementary Note 51. The display device according to Supplementary Note 50, wherein the vibration device further includes:

[0144] A first protection member provided on the first electrode part, the first protection member being configured to protect the first electrode part; and

[0145] A second protective member disposed on the second electrode portion, the second protective member being configured to protect the second electrode portion.

[0146] Item 52. The display device according to Item 50, wherein the piezoelectric vibration portion includes a plurality of first portions and a plurality of second portions alternately and repeatedly arranged along the width direction or the length direction of the piezoelectric vibration portion.

[0147] Item 53. The display device according to Item 52, wherein the plurality of first portions are formed of inorganic material portions and the plurality of second portions are formed of organic material portions.

[0148] Item 54. The display device according to Item 52, wherein the modulus and viscoelasticity of the plurality of second portions are less than the modulus and viscoelasticity of the plurality of first portions.

[0149] Item 55. A display device, the display device comprising:

[0150] A display panel configured to display an image;

[0151] A driving circuit located at the rear surface of the display panel, the driving circuit including:

[0152] A flexible circuit film connected to the display panel; and

[0153] A printed circuit board connected to the flexible circuit film;

[0154] A support member located at the rear surface of the display panel, the support member including an opening area; and

[0155] A vibration device supported by the support member, the vibration device including a first vibration device located at the rear surface of the display panel,

[0156] wherein the flexible circuit film extends through the opening area, and

[0157] wherein the printed circuit board is disposed at the rear surface of the support member.

[0158] Item 56. The display device according to Item 55, the display device further comprising:

[0159] A support frame located at the support member and having a hole in the support member,

[0160] wherein a part of the rear surface of the first vibration device is received in the hole.

[0161] Supplementary Note 57. The display device according to Supplementary Note 56, wherein a peripheral region of the hole is located between a rear surface of the vibration device and the support member.

[0162] Supplementary Note 58. The display device according to Supplementary Note 57, the display device further comprising a guiding connection member located between the support member and the support frame, the guiding connection member including a receiving hole formed to correspond to the hole.

[0163] Supplementary Note 59. The display device according to Supplementary Note 55, the display device further comprising:

[0164] a front member located at a front surface of the display panel,

[0165] wherein the support member includes:

[0166] a lower plate located at a rear surface of the display panel, the lower plate being configured to support the vibration device; and

[0167] sides disposed along a periphery of the lower plate and located at a rear surface of the front member.

[0168] Supplementary Note 60. The display device according to Supplementary Note 59, wherein,

[0169] the sides include the opening region, and

[0170] the sides are configured to support three peripheries of the front member at a rear surface of the front member.

[0171] Supplementary Note 61. The display device according to Supplementary Note 56, wherein the support frame includes:

[0172] a first surface located at the support member, the first surface including the hole; and

[0173] a second surface disposed along a periphery of the first surface and located at a rear surface of the display panel.

[0174] Supplementary Note 62. The display device according to Supplementary Note 61, wherein another part of the second surface except for a part corresponding to a part of the opening region where the support member is formed is covered by the support member.

[0175] Supplementary Note 63. The display device according to Supplementary Note 62, wherein the support frame further includes a strengthening structure located at the first surface.

[0176] Supplementary Note 64. The display device according to Supplementary Note 63, wherein the strengthening structure includes:

[0177] A first reinforcing member configured to connect two different second surfaces; and

[0178] A second reinforcing member configured to connect the first reinforcing member to the second surface.

[0179] Note 65. The display device according to Note 64, wherein

[0180] The reinforcing structure includes at least one of the following:[[]]END]]

[0181] A third reinforcing member;

[0182] A fourth reinforcing member; and

[0183] A fifth reinforcing member,[[]]END]]

[0184] The third reinforcing member is configured to connect two different first reinforcing members,[[]]END]]

[0185] The fourth reinforcing member is configured to connect two different second reinforcing members, and

[0186] The fifth reinforcing member is configured to connect the first reinforcing member to the second reinforcing member.[[]]END]]

[0187] Note 66. The display device according to Note 65, further comprising a first connecting member located between the rear surface of the support member and the printed circuit board.[[]]END]]

[0188] Note 67. The display device according to Note 66, further comprising a second connecting member disposed along the opening area of the support member and extending from the first connecting member.[[]]END]]

[0189] Note 68. The display device according to Note 55, further comprising a heat dissipation member located between the rear surface of the display panel and the first vibration device.[[]]END]]

[0190] Note 69. The display device according to Note 56, further comprising a support device located between the rear surface of the first vibration device and the support frame, the support device supporting the first vibration device.[[]]END]]

[0191] Note 70. The display device according to Note 55, further comprising a rear cover located at the rear surface of the support member, the rear cover including:[[]]END]]

[0192] A first cover configured to cover the rear surface of the support member; and

[0193] A second cover, the second cover being disposed along the periphery of the first cover, the second cover being configured to cover the opening area of the support member, wherein the second cover is configured to cover the side surface of the display panel exposed through the opening area and the flexible circuit film disposed along the opening area.

[0194] Item 71. The display device according to Item 55, the display device further comprising a rear cover located at the rear surface of the support member, the rear cover including:

[0195] A first cover, the first cover being configured to cover the rear surface of the support member; and

[0196] A second cover, the second cover being located at a periphery of the first cover, the second cover being configured to cover the opening area of the support member, wherein the second cover is configured to cover the side surface of the display panel exposed through the opening area and the flexible circuit film disposed along the opening area.

[0197] Item 72. The display device according to Item 70, wherein the first cover covers:

[0198] The rear surface of the first vibration device exposed at the rear surface of the support member; and

[0199] The printed circuit board located at the rear surface of the support member.

[0200] Item 73. The display device according to Item 71, wherein the first cover is configured to cover:

[0201] The rear surface of the first vibration device exposed at the rear surface of the support member; and

[0202] The printed circuit board located at the rear surface of the support member.

[0203] Item 74. The display device according to Item 70, the display device further comprising a support structure located between the support member and the rear cover.

[0204] Item 75. The display device according to Item 71, the display device further comprising a support structure located between the support member and the rear cover.

[0205] Item 76. The display device according to Item 75, wherein the vibration device further comprises a second vibration device located at the rear surface of the display panel, the second vibration device being configured to vibrate the display panel.

[0206] Item 77. The display device according to Item 76, wherein,

[0207] The first vibration device includes at least one coil-type vibration device, and

[0208] the second vibration device includes at least one film-type vibration device.

[0209] Note 78. The display device according to Note 76, wherein,

[0210] the first vibration device is located at a central portion of the rear surface of the display panel,

[0211] the second vibration device is located at a peripheral portion of the rear surface of the display panel,

[0212] the first vibration device is configured to vibrate a central portion of the rear surface of the display panel to generate at least one of sound and haptic feedback, and

[0213] the second vibration device is configured to vibrate a peripheral portion of the rear surface of the display panel to generate sound.

[0214] Note 79. The display device according to Note 78, wherein,

[0215] the first vibration device is further configured to vibrate a central portion of the rear surface of the display panel to generate at least one of the following:

[0216] sound of a first tone vocal cord; and

[0217] haptic feedback of a third tone vocal cord, and

[0218] the second vibration device is further configured to vibrate a peripheral portion of the rear surface of the display panel to generate sound of a second tone vocal cord.

[0219] Note 80. The display device according to Note 78, wherein,

[0220] the first vibration device includes 2m vibration devices, where m is a natural number,

[0221] among the 2m vibration devices, the first m vibration devices are disposed at one or more of a left central portion and a right central portion of the rear surface of the display panel,

[0222] among the 2m vibration devices, the second m vibration devices are disposed at the other central portion of the rear surface of the display panel, and

[0223] the first m vibration devices generate sound, and the second m vibration devices generate haptic feedback simultaneously, or

[0224] The first m vibration devices generate haptic feedback, and the second m vibration devices generate sound simultaneously.

[0225] Note 81. The display device according to Note 78,

[0226] wherein the second vibration device includes 2n vibration devices, where n is a natural number, and

[0227] wherein the first n vibration devices of the 2n vibration devices are arranged at a first peripheral portion of the display panel, and the second n vibration devices of the 2n vibration devices are arranged at a second peripheral portion of the display panel.

[0228] Note 82. The display device according to Note 79, wherein the driving circuit includes a vibration driving circuit, and the driving circuit is configured to:

[0229] equalize a signal having a frequency of the first tone vocal band included in a driving signal provided to the vibration driving circuit; and

[0230] drive the first vibration device based on the equalized signal to generate sound.

[0231] Note 83. The display device according to Note 82, wherein,

[0232] the third tone vocal band is included in the first tone vocal band, and

[0233] the vibration driving circuit is further configured to:

[0234] drive the first vibration device to generate sound and haptic feedback simultaneously; and

[0235] drive the first vibration device based on a signal having a frequency of other tone vocal bands in the frequency of the first tone vocal band that does not correspond to the frequency of the third tone vocal band to generate sound of a fourth tone vocal band.

[0236] Note 84. The display device according to Note 55, wherein the vibration device includes:

[0237] a piezoelectric vibration part, which includes a piezoelectric material, a composite piezoelectric material, or an electroactive material having a piezoelectric effect;

[0238] a first electrode part, which is located at a first surface of the piezoelectric vibration part and is electrically connected to the first surface of the piezoelectric vibration part; and

[0239] A second electrode portion, the second electrode portion being located at a second surface of the piezoelectric vibration portion opposite to the first surface and being electrically connected to the second surface of the piezoelectric vibration portion.

[0240] Item 85. A vehicle, the vehicle comprising:

[0241] An instrument panel, the instrument panel comprising:

[0242] A first region facing the driver's seat;

[0243] A second region facing the passenger seat; and

[0244] A third region located between the first region and the second region;

[0245] An instrument panel device, the instrument panel device comprising a first display located at the first region of the instrument panel; and

[0246] An infotainment device, the infotainment device comprising one or more of the following:

[0247] A second display located at the third region of the instrument panel;

[0248] A third display located at the second region of the instrument panel;

[0249] A fourth display located at the rear surface of the driver's seat; and

[0250] A fifth display located at the rear surface of the passenger seat,

[0251] wherein one or more of the first display to the fifth display includes a display device according to any one of Items 1 to 84.

[0252] Item 86. The vehicle according to Item 85, wherein one or more of the first display to the fifth display are configured to output sound based on vibration of the display panel, the vibration of the display panel being based on vibration of the vibration device. Brief Description of the Drawings

[0253] Drawings may be included to provide a further understanding of the present disclosure and the drawings may be incorporated into the present disclosure and form a part of the present disclosure. The drawings illustrate embodiments of the present disclosure and are used together with the description to explain various principles of the present disclosure.

[0254] Figure 1 A display device according to an embodiment of the present disclosure is shown.

[0255] Figure 2 Shown is Figure 1The rear surface of the display device shown.

[0256] Figure 3 is Figure 1 and Figure 2 the exploded perspective view of the display device shown in

[0257] Figure 4 is the sectional view taken along the line I-I' shown in Figure 2

[0258] Figure 5 is Figure 2 the sectional view taken along the line II-II' shown in

[0259] Figure 6 shows the rear surface of the first support member according to an embodiment of the present disclosure.

[0260] Figure 7A is Figure 6 the sectional view taken along the line III-III' shown in

[0261] Figure 7B is Figure 6 another sectional view taken along the line III-III' shown in

[0262] Figure 7C is Figure 6 another sectional view taken along the line III-III' shown in

[0263] Figure 8A shows the second support member and the third support member according to an embodiment of the present disclosure.

[0264] Figure 8B shows the second support member and the third support member according to an embodiment of the present disclosure.

[0265] Figure 8C shows the second support member and the third support member according to an embodiment of the present disclosure.

[0266] Figure 9 is the plan view showing the support device according to an embodiment of the present disclosure.

[0267] Figure 10 shows the second vibration device according to an embodiment of the present disclosure.

[0268] Figure 11 shows the second vibration device according to another embodiment of the present disclosure.

[0269] Figure 12 shows the second vibration device according to another embodiment of the present disclosure.

[0270] ​Figure 13 Shows a second vibration device according to another embodiment of the present disclosure.

[0271] Figure 14A Shows a first support member according to another embodiment of the present disclosure.

[0272] Figures 14B to 14E Shows various arrangements of a fifth hole formed at the first support member according to an embodiment of the present disclosure.

[0273] Figure 15 Is a graph showing the frequency - amplitude characteristics measured in each display device.

[0274] Figure 16 Is a graph showing the sound pressure level characteristics of a display device according to an embodiment of the present disclosure.

[0275] Figure 17 Is a graph showing the total harmonic distortion characteristics of a display device according to an embodiment of the present disclosure.

[0276] Figure 18 Shows the rear surface of a display device according to another embodiment of the present disclosure.

[0277] Figure 19 Is Figure 18 An exploded perspective view of the display device shown in

[0278] Figure 20 Is along Figure 18 A cross - sectional view taken along line IV - IV' shown in

[0279] Figure 21 Is along Figure 18 A cross - sectional view taken along line V - V' shown in

[0280] Figure 22 Is Figure 19 A front perspective view of the support frame shown in

[0281] Figures 23 to 25 Shows another example of a support frame according to an embodiment of the present disclosure.

[0282] Figure 26 Is Figure 19 A front perspective view of the first support member shown in

[0283] Figure 27 Is a graph showing the total harmonic distortion (THD) characteristics of a display device according to an embodiment of the present disclosure.

[0284] Figure 28 And Figure 29It is a graph showing the sound pressure level characteristics of a display device according to another embodiment of the present disclosure.

[0285] Figure 30 It is a cross-sectional view taken along line II-II' shown in a display device according to another embodiment of the present disclosure. Figure 2 in the cross-sectional view taken along line II-II' shown in the figure.

[0286] Figure 31 It is a cross-sectional view taken along line V-V' shown in a display device according to another embodiment of the present disclosure. Figure 18 in the cross-sectional view taken along line V-V' shown in the figure.

[0287] Figure 32 It shows a vehicle according to an embodiment of the present disclosure.

[0288] Figure 33 It shows a vehicle according to another embodiment of the present disclosure.

[0289] Figure 34 It shows a vehicle according to another embodiment of the present disclosure.

[0290] Figure 35 It shows a vehicle according to another embodiment of the present disclosure.

[0291] Figure 36 It shows the arrangement of vibration devices in a display device according to an embodiment of the present disclosure.

[0292] Figure 37A and Figure 37B It is a flowchart for describing a driving algorithm for generating sound and haptic feedback in a display device according to an embodiment of the present disclosure.

[0293] Figure 38 It is a graph showing the sound pressure level characteristics of the sound generated by driving based on the driving algorithm of Figure 37A and Figure 37B in a display device according to an embodiment of the present disclosure.

[0294] Throughout the drawings and the detailed description, unless otherwise described, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustration, and convenience, the relative dimensions of these elements may be exaggerated and depicted. Detailed Description

[0295] Reference will now be made in detail to the embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. In the following description, when it is determined that a detailed description of a well-known function or configuration related to the present document would unnecessarily obscure the gist of the inventive concept, the detailed description thereof will be omitted. The processes of the described processing steps and / or operations are examples; however, the order of the steps and / or operations is not limited to the order set forth herein and may be changed as known in the art, except when the steps and / or operations must occur in a specific order. The same reference numerals always denote the same elements. The names of the respective elements used in the following description may be selected merely for the convenience of writing the specification and thus may be different from those used in actual products.

[0296] The advantages and features of the present disclosure and the methods for realizing them will be clarified by the following exemplary embodiments described with reference to the accompanying drawings. However, the present disclosure may be implemented in different forms and should not be construed as limited to the exemplary embodiments described herein. On the contrary, these exemplary embodiments are provided so that the present disclosure may be sufficiently thorough and complete to enable those skilled in the art to fully understand the scope of the present disclosure. Furthermore, the present disclosure is defined only by the scope of the claims.

[0297] The shapes, sizes, ratios, angles, and quantities disclosed in the drawings used to describe the embodiments of the present disclosure may be merely examples. Therefore, the present disclosure is not limited to the details shown. The same reference numerals denote the same elements throughout the specification. In the following description, when it is determined that a detailed description of a relevant known function or configuration would unnecessarily obscure the gist of the present disclosure, the detailed description of such known function or configuration may be omitted. When the terms "comprising", "having", and "including" can be used to describe the present disclosure, another part may be added unless a more restrictive term such as "only" is used. Unless otherwise indicated, terms in the singular form may include the plural form.

[0298] When interpreting an element, the element is interpreted as including an error or tolerance range, although there is no explicit description of such error or tolerance range. When describing a positional relationship, when the positional relationship between two components is described as, for example, "on", "above", "below", or "near", one or more other components may be provided between the two components unless a more restrictive term such as "only" or "directly" is used. When describing a temporal relationship, when the time sequence is described as, for example, "after", "subsequently", "next", or "before", a discontinuous case may be included unless a more restrictive term such as "exactly", "immediately", or "directly" is used.

[0299] It should be understood that although terms such as "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms may be used only to distinguish one element from another. For example, without departing from the scope of the present disclosure, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0300] When describing the elements of the present disclosure, terms such as "first", "second", "A", "B", "(a)", "(b)", etc. may be used. These terms may be used only to distinguish one element from another, and the nature, order, sequence, or number of the corresponding elements should not be limited by these terms. In addition, when an element or layer is described as "connected", "coupled", or "bonded" to another element or layer, the element or layer may not only be directly connected or bonded to the other element or layer, but may also be indirectly connected or bonded to the other element or layer, and one or more intermediate elements or layers are "disposed" between the elements or layers, unless otherwise specified.

[0301] The term "at least one" should be understood to include any and all combinations of one or more of the associated listed items. For example, the meaning of "at least one of the first item, the second item, and the third item" represents a combination of two or more of the first item, the second item, and the third item and all items taken from the first item, the second item, or the third item.

[0302] In the description of the embodiments, when a structure is described as being "on, or above" or "under or below" another structure, such description should be interpreted to include the case where the structures are in contact with each other and the case where a third structure is disposed therebetween. The dimensions and thicknesses of each element shown in the drawings may be given only for the convenience of description, and the embodiments of the present disclosure are not limited thereto.

[0303] The features of the various embodiments of the present disclosure may be partially or wholly coupled or combined with each other, and as can be fully understood by those skilled in the art, they may interoperate with each other in various ways and be technically driven. The embodiments of the present disclosure may be executed independently of each other, or may be executed together in an interdependent relationship.

[0304] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the exemplary embodiments belong. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein. For example, the term "part" or "unit" may apply to, for example, a separate circuit or structure, an integrated circuit, a computational block of a circuit device, or any structure configured to perform the described function as would be understood by one of ordinary skill in the art.

[0305] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0306] When the driving circuit of a display device is directly disposed on the rear surface of a display panel, the inventors have recognized a problem that in the case of transmitting the vibration of a vibration generating module to the display panel, the desired sound is not transmitted to the display panel due to the driving circuit. In addition, when the vibration generating module is applied to an automotive display device having a relatively small size, the inventors have recognized a problem that the driving circuit is damaged by the vibration of the vibration generating module. Therefore, the inventors have conducted various experiments to reduce the damage to the driving circuit caused by the vibration generating module. Through various experiments, the inventors of the present disclosure have invented a display device having a new structure that reduces or prevents damage to the driving circuit by the vibration generating module, reduces the contact between the driving circuit and the display panel to reduce the vibration caused by the driving circuit, and enhances the sound of the vibration generating module.

[0307] Figure 1 A display device according to an embodiment of the present disclosure is shown.

[0308] Referring to Figure 1 the example of, a display device according to an embodiment of the present disclosure may output a sound DVS (e.g., a display vibration sound) according to the vibration of a display panel 200 configured to display an image. Therefore, a display device according to an embodiment of the present disclosure may use the display panel 200 as a diaphragm to output the sound DVS. Accordingly, the display device may output the sound DVS to a forward region FD in front of the screen of the display panel 200, thereby transmitting accurate sound, improving sound quality, and enhancing the immersive experience of a viewer or listener.

[0309] Figure 2 Shown is Figure 1 the rear surface of the display device shown. Figure 3 is Figure 1 and Figure 2 an exploded perspective view of the display device shown in. Figure 4 is alongFigure 2 A cross-sectional view taken along line I-I' shown in Figure 5 is a cross-sectional view taken along Figure 2 line II-II' shown in

[0310] Referring to Figures 2 to 5 the example of , a display device according to an embodiment of the present disclosure may include a front member 100, a display panel 200, a driving circuit 300, a support frame 400, a first support member 500, a second support member 600, a third support member 700, and a vibration device (or a first vibration device) 800. However, the embodiments of the present disclosure are not limited thereto.

[0311] The front member 100 may form the outermost structure of the display device and may protect the screen of the display panel 200. The front member 100 may be disposed on the front surface of the display panel 200. For example, the front member 100 may cover the front surface of the display panel 200 to protect the display panel 200 from external impacts. In addition, the front member 100 may vibrate together with the vibration of the display panel 200 to generate a sound DVS.

[0312] According to an embodiment of the present disclosure, the front member 100 may include one or more of a transparent plastic material, a glass material, or a tempered glass material, but the embodiments of the present disclosure are not limited thereto. For example, in an embodiment of the present disclosure, the front member 100 may include sapphire glass and glass or a stacked structure thereof. As another exemplary embodiment of the present disclosure, the front member 100 may include a transparent plastic material, such as polyethylene terephthalate (PET), etc. The front member 100 may include tempered glass that can be selected based on scratch resistance and transparency. For example, the front member 100 may be a front structure, a front window, a cover window, a glass window, a cover screen, a screen cover, a window glass, etc., but the embodiments of the present disclosure are not limited thereto.

[0313] Referring to Figure 3 the example of , the front member 100 may cover a non-display area other than the display area of the display panel 200. According to an embodiment of the present disclosure, the front member 100 may include a transparent area 110 overlapping with the display area of the display panel 200 and a light-shielding area 130 overlapping with the non-display area of the display panel 200. The light-shielding area 130 may not only cover the non-display area of the display panel 200 but also cover a non-display area where no image is displayed on the display device. According to an embodiment of the present disclosure, the front member 100 may have a polygonal shape including a rectangular shape or a square shape, or may have a non-polygonal shape including at least one side having a curved shape.

[0314] The display panel 200 may be disposed at the rear surface (e.g., the back surface) of the front member 100 and may display an image. The display panel 200 may be used as a touch sensor for sensing a user touch applied to the front member 100. The display panel 200 may output sound DVS according to the vibration of the vibration device 800, or may generate haptic feedback (e.g., haptic vibration) in response to a user touch.

[0315] The display panel 200 may be disposed at the rear surface of the front member 100 through a bonding process using a panel connection member (or a transparent adhesive member). The panel connection member may include a pressure-sensitive adhesive (PSA), an optically clear adhesive (OCA), or an optically clear resin (OCR), but the embodiments of the present disclosure are not limited thereto.

[0316] The display panel 200 may include a self-emitting display panel or a curved self-emitting display panel. For example, the display panel 200 may include a light-emitting display panel, a micro light-emitting diode display panel, a flexible light-emitting display panel, or a flexible micro light-emitting diode display panel, but the embodiments of the present disclosure are not limited thereto.

[0317] The display panel 200 according to an embodiment of the present disclosure may have a polygonal shape including a rectangular shape or a square shape, or may have a non-polygonal shape including at least one side having a curved shape. The display panel 200 may have the same or different shape from the front member 100. As an example embodiment of the present disclosure, the front member 100 may have a rectangular shape, and the display panel 200 may have a rectangular shape with a size smaller than that of the front member 100. As another example embodiment of the present disclosure, the front member 100 may have a non-polygonal shape, and the display panel 200 may have a non-polygonal shape or a rectangular shape with a size smaller than that of the front member 100.

[0318] Referring to Figure 4 the example of, according to an embodiment of the present disclosure, the display panel 200 may include a pixel array substrate 210, and the pixel array substrate 210 includes a pixel array layer 213 having a plurality of pixels and an encapsulation layer 230 covering the pixel array layer 213.

[0319] The pixel array substrate 210 according to an embodiment of the present disclosure may include a base substrate 211 and a pixel array layer 213 disposed at the base substrate 211. For example, the base substrate 211 may include a plastic material or a glass material, but the embodiments of the present disclosure are not limited thereto. The pixel array layer 213 may include a pixel array, and the pixel array includes a plurality of pixels disposed at a display area on the base substrate 211.

[0320] Each of the plurality of pixels may be disposed in a plurality of pixel regions formed by a plurality of pixel driving lines including a plurality of gate lines and a plurality of data lines. Each pixel of the plurality of pixels according to an embodiment of the present disclosure may include a pixel circuit and a light emitting device layer, the pixel circuit including at least two or more thin film transistors (TFTs) and at least one or more capacitors, and the light emitting device layer emitting light using a current supplied from the pixel circuit.

[0321] The light emitting device layer disposed at each pixel of the plurality of pixels may include a first electrode connected to the corresponding pixel circuit, a light emitting device disposed on the first electrode, and a second electrode disposed on the light emitting device. As an exemplary embodiment of the present disclosure, the light emitting device may include an organic light emitting layer or a quantum dot light emitting layer. As another exemplary embodiment of the present disclosure, the light emitting device may include a micro light emitting diode.

[0322] The light emitting device layer according to an embodiment of the present disclosure may have a top emission structure or a front emission structure, in which light emitted from the light emitting device may pass through the encapsulation layer 230 and may be output toward the front member 100. For example, in the light emitting device layer based on the top emission structure (or front emission structure), the first electrode may be a reflective electrode, and the second electrode may be a transparent electrode. For example, the first electrode may include a light reflecting material, and the second electrode may include a light transmitting material.

[0323] According to another embodiment of the present disclosure, the light emitting device layer may have a bottom emission structure or a rear emission structure, in which light emitted from the light emitting device may pass through the pixel array substrate 210 and may be output toward the front member 100. For example, in the light emitting device layer based on the bottom emission structure (or rear emission structure), the first electrode may be a transparent electrode, and the second electrode may be a reflective electrode. The first electrode may include a light transmitting material, and the second electrode may include a light reflecting material. However, the embodiments of the present disclosure are not limited thereto. For example, the light emitting device layer may have a dual emission structure.

[0324] The pixel array substrate 210 may further include a gate driving circuit 215 disposed in a non-display area of the base substrate 211.

[0325] The gate driving circuit 215 may be disposed in the non-display area of the base substrate 211 to be connected to the plurality of gate lines in a one-to-one relationship. The gate driving circuit 215 may be disposed in one or more of the left non-display area and the right non-display area of the base substrate 211. For example, the gate driving circuit 215 may be implemented together with a process of forming thin film transistors (TFTs) in the pixel region using a shift register including a plurality of transistors in the non-display area.

[0326] The encapsulation layer 230 may be disposed on the pixel array substrate 210 to surround the pixel array layer 213, thereby reducing, preventing, or blocking the penetration of oxygen and / or water into the light-emitting devices of the pixel array layer 213. The encapsulation layer 230 according to an embodiment of the present disclosure may be a multi-layer structure in which organic material layers and inorganic material layers are alternately stacked, but the embodiments of the present disclosure are not limited thereto. The inorganic material layer may reduce, prevent, or block the penetration of oxygen and / or water into the light-emitting devices. In addition, the organic material layer may have a relatively thicker thickness than the inorganic material layer, for example, covering particles that appear in the manufacturing process, but the embodiments of the present disclosure are not limited thereto.

[0327] The display panel 200 according to an embodiment of the present disclosure may further include a protection substrate on the encapsulation layer 230. The protection substrate (e.g., an encapsulation substrate) may be disposed on the front surface of the encapsulation layer 230 or coupled (or connected) to the front surface of the encapsulation layer 230 through a filler or an adhesive. As an embodiment of the present disclosure, when the light-emitting device layer has a top-emission structure, the protection substrate may include a transparent material. As another embodiment of the present disclosure, when the light-emitting device layer has a bottom-emission structure, the protection substrate may include a transparent material, an opaque material, or a metal material. For example, when the light-emitting device layer has a top-emission structure, the protection substrate may be omitted.

[0328] The display panel 200 according to an embodiment of the present disclosure may further include an optical film.

[0329] The optical film may be a polarizing film that reduces, prevents, or minimizes the reflection of external light to enhance the visibility and contrast of the display panel 200. The polarizing film may circularly polarize the external light reflected by the TFT and / or the pixel driving lines at the pixel array substrate 210, thereby reducing, preventing, or minimizing the reflection of the external light.

[0330] When the light-emitting device layer has a top-emission structure, the optical film according to an embodiment of the present disclosure may be disposed (or attached) on the upper surface of the encapsulation layer 230 through a transparent adhesive member. When the display panel 200 has an optical film, the protection substrate may be omitted.

[0331] When the light-emitting device layer has a bottom-emission structure, the optical film according to another embodiment of the present disclosure may be disposed (or attached) on the rear surface of the pixel array substrate 210 through a transparent adhesive member.

[0332] The display panel 200 according to an embodiment of the present disclosure may further include a touch electrode layer configured to sense a user's touch applied to the front member 100.

[0333] The touch electrode layer may include a plurality of touch electrodes configured to sense a user's touch. Each of the plurality of touch electrodes may serve as a touch sensor configured to sense a user's touch based on a mutual capacitance type or a self-capacitance type.

[0334] According to an embodiment, the touch electrode layer may be implemented as a touch panel including a plurality of touch electrodes. For example, when the light emitting device layer has a top emission structure, an additional touch panel may be disposed or coupled (or connected) on the encapsulation layer 230 or the optical film, and when the light emitting device layer has a bottom emission structure, the additional touch panel may be disposed on the rear surface of the pixel array substrate 210 or coupled to the rear surface of the pixel array substrate 210.

[0335] According to another embodiment of the present disclosure, the touch electrode layer may be directly formed on the encapsulation layer 230 based on an in-cell type. For example, when the light emitting device layer has a top emission structure, the touch electrode layer based on the in-cell type may be directly formed on the front surface of the encapsulation layer 230.

[0336] The display panel 200 according to an embodiment of the present disclosure may further include a color filter layer disposed on the encapsulation layer 230 to overlap with each of the plurality of pixels. The light emitting devices disposed at each of the plurality of pixels may emit white light. As an embodiment of the present disclosure, when the light emitting device layer has a top emission structure, the color filter layer may be formed on the encapsulation layer 230. As another embodiment of the present disclosure, when the light emitting device layer has a bottom emission structure, the color filter layer may be disposed inside the pixel array layer 213.

[0337] The display panel 200 according to an embodiment of the present disclosure may further include a backplane 250.

[0338] The backplane 250 may be formed to have the same shape as the pixel array substrate 210. As an embodiment of the present disclosure, when the light emitting device layer has a top emission structure, the backplane 250 may be disposed at the rear surface (e.g., the back surface) of the pixel array substrate 210 through a transparent adhesive member. As another embodiment of the present disclosure, when the light emitting device layer has a bottom emission structure, the backplane 250 may be a protective substrate.

[0339] The backplane 250 may increase the stiffness of the display panel 200 and may dissipate heat that may occur in the display panel 200. The backplane 250 according to an embodiment of the present disclosure may include a metal material having a high thermal conductivity. For example, the backplane 250 may include one or more of aluminum (Al), copper (Cu), silver (Ag), and magnesium (Mg) or an alloy thereof, or may include a stainless steel material. The backplane 250 may be a heat diffusion sheet, a heat diffusion layer, a heat diffusion plate, a heat sink, a heat dissipation fin, a heat dissipation layer, a heat dissipation plate, etc., but the embodiments of the present disclosure are not limited thereto.

[0340] Referring to Figure 2 、 Figure 3 and Figure 5 Figure 3

[0341] The driving circuit 300 according to an embodiment of the present disclosure may include at least one flexible circuit film 310, at least one data driving integrated circuit (IC) 320, and a printed circuit board (PCB) 330.

[0342] Each of the at least one flexible circuit film 310 may be connected to each of a plurality of pad portions 217 provided at a first peripheral portion (or one peripheral portion) of the pixel array substrate 210 of the display panel 200. The plurality of pad portions 217 may be provided at regular intervals in the first direction X. Accordingly, each of the at least one flexible circuit film 310 may be connected to each of the plurality of pad portions 217 arranged at regular intervals. Accordingly, each of the at least one flexible circuit film 310 may be provided at regular intervals in the first direction X. For example, by a film attachment process using, for example, an anisotropic conductive film, one side of each of the at least one flexible circuit film 310 may be provided at (e.g., connected to) the pad portion 217 provided at the display panel 200.

[0343] Each of the at least one flexible circuit film 310 may extend to the rear surface of the first support member 500 and may be provided at the rear surface of the first support member 500. For example, each of the at least one flexible circuit film 310 may be bent (or folded) from the pad portion 217 toward the rear surface of the first support member 500. For example, the other side of each of the at least one flexible circuit film 310 may be provided at a first rear peripheral portion of the first support member 500. For example, each of the at least one flexible circuit film 310 may extend through a hole H formed at a first peripheral portion (e.g., one peripheral portion) of the first support member 500 toward the first rear peripheral portion of the first support member 500 and may be provided at the first rear peripheral portion of the first support member 500. For example, the hole H may be a through hole, but embodiments of the present disclosure are not limited thereto.

[0344] Multiple data - driving integrated circuits (ICs) 320 may be respectively mounted on at least one flexible circuit film 310. Each of the multiple data - driving ICs 320 may be mounted on the flexible circuit film 310 by a chip - bonding process or a surface - mounting process. Each of the multiple data - driving ICs 320 may convert digital pixel data into an analog data signal based on digital pixel data and a data control signal provided from the outside, and may provide the analog data signal to corresponding pixels.

[0345] A printed circuit board (PCB) 330 may be commonly connected to at least one flexible circuit film 310. For example, the PCB 330 may be connected to the display panel 200 through at least one flexible circuit film 310. According to an embodiment of the present disclosure, the PCB 330 may be electrically connected to the other side of each of at least one flexible circuit film 310 by a film - attaching process such as using an anisotropic conductive film, and may be disposed at a first rear - peripheral portion of the first support member 500 based on the bending of each of at least one flexible circuit film 310. The first rear - peripheral portion of the first support member 500 may be an area of the rear surface of the first support member 500 where at least one flexible circuit film 310 and the PCB 330 are disposed. For example, the first rear - peripheral portion of the first support member 500 may be referred to as the "rear single - side portion" of the first support member 500.

[0346] According to an embodiment of the present disclosure, the PCB 330 may be disposed on the rear surface of the first support member 500 so as not to overlap with the vibration device 800. According to an embodiment of the present disclosure, a part of the PCB 330 may be disposed on the rear surface of the vibration device 800 so as to overlap with the vibration device 800. According to an embodiment of the present disclosure, a part of the PCB 330 that overlaps with the vibration device 800 may or may not overlap with the first support member 500.

[0347] According to an embodiment of the present disclosure, the PCB 330 may include a first substrate area 331 that overlaps with the first support member 500. For example, the PCB 330 may include a first substrate area 331 that overlaps with the first support member 500 and a second substrate area 333 that overlaps with both the first support member 500 and the vibration device 800. For example, the PCB 330 may include a first substrate area 331 that overlaps with the first support member 500, a second substrate area 333 that overlaps with both the first support member 500 and the vibration device 800, and a third substrate area 335 that overlaps with the vibration device 800. According to an embodiment of the present disclosure, the PCB 330 may include a first substrate area 331 that overlaps with the first support member 500 and a third substrate area 335 that overlaps with the vibration device 800.

[0348] According to an embodiment of the present disclosure, when the PCB 330 is disposed to directly contact the rear surface of the display panel 200, since the vibration for sound DVS of the display panel 200 is directly transmitted to the PCB 330, due to the vibration or shaking of the PCB 330, the PCB 330 may be damaged or a separation phenomenon (or peeling phenomenon) between the PCB 330 and the flexible circuit film 310 may occur, and the data driving IC 320 may be damaged due to the vibration or shaking of the flexible circuit film 310 caused by the vibration or shaking of the PCB 330.

[0349] Therefore, in the display device according to an embodiment of the present disclosure, the PCB 330 may be disposed at the rear surface of the first support member 500 so as not to directly contact the rear surface of the display panel 200. Accordingly, the vibration transmission from the display panel 200 to the PCB 330 can be reduced, prevented, or minimized. Accordingly, the damage to the PCB 330 caused by the vibration of the display panel 200 can be reduced, prevented, or minimized, and the separation phenomenon between the flexible circuit film 310 and the PCB 330 and the damage to the data driving IC 320 can be reduced, prevented, or minimized.

[0350] In addition, when the PCB 330 is not disposed between the display panel 200 and the first support member 500, the arrangement of the vibration device 800 may not be affected by the PCB 330. Accordingly, the degree of freedom in the arrangement of the vibration device 800 can be ensured. Accordingly, based on the arrangement of the vibration device 800, the sound pressure level, sound quality, and reproduction pitch vocal cords of the sound generated based on the vibration of the display panel 200 can be increased.

[0351] The driving circuit 300 according to an embodiment of the present disclosure may further include a control board 340, a signal transmission member 350, a timing control circuit 360, a user connector 370, and a vibration driving circuit 380.

[0352] The control board 340 may be disposed at the rear surface of the first support member 500 and may be connected to the PCB 330 through the signal transmission member 350. The control board 340 may be connected to a display host system (e.g., a display driving system) through the user connector 370. The control board 340 may provide a timing synchronization signal and video data respectively provided from the display host system to the timing control circuit 360, and may provide digital pixel data output from the timing control circuit 360 to the data driving IC 320 through the signal transmission member 350, the PCB 330, and the flexible circuit film 310.

[0353] The control board 340 may further include a voltage generation circuit that generates various driving voltages required to drive the display device.

[0354] The timing control circuit 360 can be installed on the control board 340 and can receive a timing synchronization signal and video data provided from the display host system respectively through the user connector 370. For example, the timing synchronization signal can include a vertical synchronization signal, a horizontal synchronization signal, a data enable signal, a main clock signal, etc.

[0355] The timing control circuit 360 can generate a gate control signal for controlling the driving timing of the gate driving circuit and a data control signal for controlling the driving timing of each of the plurality of data driving ICs 320 based on the timing synchronization signal. For example, the gate control signal can include at least one gate start signal and a plurality of gate shift clocks. The data control signal can include a source start signal, a source shift clock, a source output enable signal, etc.

[0356] The timing control circuit 360 can be installed on the front surface of the PCB 330 instead of the control board 340. In addition, the voltage generation circuit can be installed on the front surface of the PCB 330 instead of the control board 340. In this case, the control board 340 can be omitted.

[0357] The driving circuit 300 according to an embodiment of the present disclosure may further include a touch driving circuit connected to the touch electrode layer of the display panel 200.

[0358] The touch driving circuit can sense a user touch through each touch electrode among the plurality of touch electrodes provided in the touch electrode layer to generate touch raw data, and can send coordinate information about the user touch to the display host system based on the generated touch raw data. For example, the touch driving circuit can provide event generation and touch coordinate information of the user touch to the vibration driving circuit.

[0359] The display host system can include a main board, various circuits installed on the main board, various storage media, peripheral devices, a keyboard, a power supply device, etc. The various circuits installed on the main board can include a central control circuit for processing various information, an image processing circuit for processing data according to the control of the central control circuit, and a sound processing circuit for processing sound according to the control of the central control circuit. The display host system can process various information, can generate a timing synchronization signal and video data to provide the timing synchronization signal and video data to the control board 340, and can generate a driving signal including a sound signal or a tactile feedback signal to provide the driving signal to the control board 340. For example, the sound signal can be synchronized with the video data or can be not synchronized with the video data.

[0360] The display host system may execute an application associated with touch coordinates corresponding to coordinate information about a user touch provided from a touch driving circuit, or may execute a user interface based on a user's touch drawing. In addition, the display host system may generate a driving signal including a haptic feedback signal corresponding to the coordinate information about the user touch provided from the touch driving circuit, and may provide the driving signal to the driving circuit 300.

[0361] The support frame 400 may be disposed at the rear surface of the front member 100. For example, the support frame 400 may surround at least one or more side surfaces (e.g., lateral surfaces) of the display panel 200. In addition, the support frame 400 may surround the vibration device 800. For example, the support frame 400 may have the same shape as the front member 100. The support frame 400 may be disposed at the outermost surface of the display device and may be directly exposed to the outside of the display device. For example, the support frame 400 may be an outermost frame, an outermost molding material, an outermost mechanism, a guiding frame, a guiding panel, an edge frame, a molding frame, etc., but embodiments of the present disclosure are not limited thereto.

[0362] The support frame 400 may be configured to support the first support member 500. The support frame 400 may provide an air gap AG between the rear surface of the display panel 200 and the first support member 500, or may provide an accommodation space or a storage space for the display panel 200. In addition, the support frame 400 may provide an accommodation space or a storage space for the vibration device 800.

[0363] According to an embodiment of the present disclosure, the support frame 400 may be disposed at the rear peripheral portion of the front member 100 through a first connection member (or a first coupling member) 410. The first connection member 410 may be inserted between the rear peripheral portion of the front member 100 and the support frame 400. Accordingly, the support frame 400 may be disposed at the rear surface of the front member 100.

[0364] The first connection member 410 according to an embodiment of the present disclosure may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but embodiments of the present disclosure are not limited thereto. In the first connection member 410 according to an embodiment of the present disclosure, the adhesive resin and the adhesive layer may include an acrylic-based or a polyurethane-based adhesive material, but embodiments of the present disclosure are not limited thereto. For example, in the first connection member 410, the adhesive resin and the adhesive layer may include a polyurethane-based adhesive material having relatively ductile characteristics, rather than an acrylic-based adhesive material having relatively high hardness characteristics, to reduce, prevent, or minimize the vibration of the front member 100 from being transmitted to the support frame 400 through the vibration of the display panel 200, but embodiments of the present disclosure are not limited thereto.

[0365] The support frame 400 according to an embodiment of the present disclosure may include an opening 420, and the opening 420 may be provided at a rear peripheral portion of the front member 100 to overlap with the display panel 200. For example, the support frame 400 may have the same shape as the front member 100, but the embodiments of the present disclosure are not limited thereto. For example, the support frame 400 may have the same polygonal shape or non-polygonal shape as the front member 100.

[0366] The support frame 400 may include an opening 420 in a central region. The support frame 400 may have a four-surface support structure (or a square frame structure) to support the four peripheries of the upper, lower, left, and right of the front member 100. Therefore, since all or completely the four peripheries of the upper, lower, left, and right of the front member 100 are supported by the support frame 400, all the upper peripheral portions, lower peripheral portions, left peripheral portions, and right peripheral portions of the front member 100 may have the same stiffness. Therefore, the vibration module of the display panel 200 may be disposed near the vibration device 800, and the vibration region (or excitation position) of the vibration device 800 may be matched with the maximum displacement position of the display panel 200, thereby enhancing the vibration efficiency of the vibration device 800 to enhance the sound pressure level, quality, and reproduction band of the sound generated by the vibration of the display panel 200. It should be understood that the terms "left", "right", "upper", and "lower" are used herein as examples for ease of explanation and illustration and are interchangeable, as should be understood by those of ordinary skill in the art.

[0367] The opening 420 of the support frame 400 may be realized by the inner surface (e.g., the inner sidewall) of the support frame 400. The opening 420 of the support frame 400 may store or accommodate the display panel 200. For example, the side surface of the display panel 200 may surround the opening 420 of the support frame 400. In addition, the opening 420 of the support frame 400 may store or accommodate the vibration device 800. For example, at least one or more side surfaces of the vibration device 800 may surround the opening 420 of the support frame 400. For example, the opening 420 of the support frame 400 may have the same shape as the display panel 200. For example, the opening 420 of the support frame 400 may have a size larger than that of the display panel 200. For example, the opening 420 of the support frame 400 may have the same polygonal shape or non-polygonal shape as the display panel 200.

[0368] The support frame 400 according to an embodiment of the present disclosure may further include a plurality of connection portions 430 formed at a surface or a portion at a certain interval. Each of the plurality of connection portions 430 may be a structure for setting (e.g., connecting) the first support member 500 to the support frame 400 and may be formed at a surface opposite to the first support member 500. For example, each of the plurality of connection portions 430 may include a groove or a hole. For example, the groove may be a threaded groove or a threaded hole, but the embodiments of the present disclosure are not limited thereto.

[0369] Figure 6 The rear surface of the first support member according to an embodiment of the present disclosure is shown. Figure 7A is along Figure 6 the sectional view taken along line III-III' shown in Figure 7B and Figure 7C is along Figure 6 another sectional view taken along line III-III' shown in

[0370] Referring to Figures 2 to 7C , the first support member 500 may be disposed at the rear surface of the display panel 200. For example, the first support member 500 may be disposed at the rear surface of the support frame 400. For example, the first support member 500 may be supported by a peripheral portion of the support frame 400 and may cover the rear surface of the display panel 200. The first support member 500 may support or store (or accommodate) the vibration device 800. The first support member 500 may be formed to have the same shape as the display panel 200 and may be supported by the support frame 400.

[0371] According to an embodiment of the present disclosure, the first support member 500 may be disposed at the support frame 400 through a second connection member (e.g., a second coupling member) 540. For example, the second connection member 540 may be a screw or a bolt, but the embodiments of the present disclosure are not limited thereto. For example, one or more second connection members 540 may be disposed at a peripheral portion of the first support member 500. For example, holes may be formed at the region where the second connection member 540 for disposing the first support member 500 is to be arranged to facilitate the coupling (or fixing) of the second connection member 540.

[0372] The first support member 500 according to an embodiment of the present disclosure can be used as a support configured to support the vibration device 800. For example, the first support member 500 may include a metallic material or a metal alloy material. For example, the first support member 500 may include one or more materials or alloys thereof, such as aluminum (Al), Al alloy, magnesium (Mg), Mg alloy, iron-nickel (Fe-Ni) alloy, and stainless steel, or may have a junction structure, but the embodiments of the present disclosure are not limited thereto. For example, the first support member 500 may have a thickness of 0.5 mm or more, but the embodiments of the present disclosure are not limited thereto. The first support member 500 may be a rear cover, a back cover, or a rear member, but the embodiments of the present disclosure are not limited thereto.

[0373] The first support member 500 according to another embodiment of the present disclosure may have a thickness of 0.5 mm or less to reduce the weight of the display device. In this case, since the stiffness of the first support member 500 may be weaker due to its relatively thin thickness compared to the front member 100, deformation of the first support member 500 may occur due to the vibration of the vibration device 800. Therefore, the vibration of the vibration device 800 may not be normally transmitted to the front member 100.

[0374] When the first support member 500 does not have sufficient stiffness, the inventors of the present disclosure have recognized the problem that the first support member 500 may absorb part of the energy of the vibration device 800. For example, when the first support member 500 absorbs the energy of the vibration device 800, insufficient vibration equal to the energy absorbed by the first support member 500 may be transmitted to the display panel 200. Therefore, due to the insufficient vibration of the vibration device 800, it may be difficult for the display panel 200 to output sufficient sound. Therefore, when the energy or vibration of the vibration device 800 is lost, the inventors of the present disclosure have recognized the problem that it is difficult for the display panel 200 to output the desired sound.

[0375] Therefore, the inventors of the present disclosure have conducted various experiments for increasing or enhancing the stiffness of the first support member 500. Another structure may be additionally provided at the first support member 500 to increase the stiffness of the first support member 500, but in this case, there may be a problem that the display device may become thicker. Through various experiments, the inventors of the present disclosure have provided a forming part (e.g., a stiffness reinforcement structure) at the first support member 500 for increasing or enhancing the stiffness of the first support member 500 without increasing the thickness of the display device. In addition, the display device according to another embodiment of the present disclosure may further include at least one or more reinforcing parts for enhancing the stiffness of the first support member 500. For example, the at least one or more reinforcing parts may further include reinforcing bars or stiffness reinforcement structures.

[0376] The first support member 500 according to an embodiment of the present disclosure may include a first (1-1) plate 510, a forming portion 520, and a first (1-2) plate 530.

[0377] According to an embodiment of the present disclosure, the first (1-1) plate 510 may form a base of the first support member 500, the forming portion 520 may extend from the first (1-1) plate 510 in an outward direction of the first (1-1) plate 510, the first (1-2) plate 530 may extend from the forming portion 520 in an outward direction of the first (1-1) plate 510, and the forming portion 520 may be a region between the first (1-1) plate 510 and the first (1-2) plate 530. For example, the first (1-1) plate 510, the forming portion 520, and the first (1-2) plate 530 may be provided as an integral body or a single body.

[0378] The first (1-1) plate 510 (e.g., the first (1-1) support plate) according to an embodiment of the present disclosure may be disposed at the rear surface of the display panel 200. For example, the first (1-1) plate 510 may be disposed to face the rear surface of the display panel 200 and may cover the rear surface of the display panel 200. For example, the first (1-1) plate 510 may include a plurality of holes.

[0379] The plate 510 may be disposed at a central region of the first support member 500 and may support the vibration device 800. For example, the first (1-1) plate may have a flat shape, but the embodiments of the present disclosure are not limited thereto. The first support member 500 according to an embodiment of the present disclosure may include a first hole (e.g., a vibration device receiving hole) 550 formed in the first (1-1) plate 510. The first hole 550 may be formed in the first (1-1) plate 510 to have a size and shape that allows a part of the rear surface of the vibration device 800 to be inserted or received into the first hole 550.

[0380] The first hole 550 according to an embodiment of the present disclosure may include a (1-1) hole 551 formed at a (1-1) region (e.g., a (1-1) plate region) of the (1-1) plate 510, and a (1-2) hole 552 formed at a (1-2) region (e.g., a (1-2) plate region) of the (1-1) plate 510 adjacent to the (1-1) hole 551. For example, the (1-1) hole 551 and the (1-2) hole 552 may be arranged in parallel in the first direction X. The (1-1) hole 551 and the (1-2) hole 552 according to an embodiment of the present disclosure may each have a circular shape, but the embodiments of the present disclosure are not limited thereto. For example, the (1-1) hole 551 and the (1-2) hole 552 may each have an elliptical or polygonal shape, or may have a shape that allows a part of the rear surface of the vibration device 800 to be inserted or accommodated therein. As another example, the shapes of the (1-1) hole 551 and the (1-2) hole 552 may be different from each other respectively.

[0381] The first support member 500 according to an embodiment of the present disclosure may further include a second hole (e.g., a wire hole or a wiring hole) 560 formed at the (1-1) plate 510. The second hole 560 may have a size and shape that allows a driving signal cable of the vibration device 800 disposed between the rear surface of the display panel 200 and the first support member 500 to pass through or extend through the second hole 560 and extend to the outside. For example, the second hole 560 may be used as a path through which a driving signal cable of the second vibration device 1200 to be described below can pass through or extend through. The second hole 560 according to an embodiment of the present disclosure may include a (2-1) hole 561 adjacent to the (1-1) hole 551 and a (2-2) hole 562 adjacent to the (1-2) hole 552.

[0382] The first support member 500 according to an embodiment of the present disclosure may further include a third hole (e.g., a dummy hole) 570 formed at the (1-1) plate 510. For example, the third hole 570 may be used as a ventilation hole. For example, the third hole 570 may include a (3-1) hole 571 adjacent to the (1-1) hole 551 and a (3-2) hole 572 adjacent to the (1-2) hole 552, but the embodiments of the present disclosure are not limited thereto. For example, the second hole 560 may be disposed between the first hole 550 and the third hole 570, but the embodiments of the present disclosure are not limited thereto.

[0383] The first support member 500 according to an embodiment of the present disclosure may further include a fourth hole 580 formed at the (1-1) plate 510. For example, the fourth hole 580 may be used to couple or connect the first support member 500 to the support device 1100. According to an embodiment of the present disclosure, the fourth hole 580 may be used to connect or couple the first support member 500 to the vibration device 800. For example, the sixth connection member 1140 of the support device 1100 may be inserted or received through the fourth hole 580 and may be coupled or connected to the support device 1100. For example, the fourth hole 580 may include a (4-1) hole 581 adjacent to the (1-1) hole 551 and a (4-2) hole 582 adjacent to the (1-2) hole 552.

[0384] The first support member 500 according to an embodiment of the present disclosure may further include a fifth hole 590 formed at the (1-1) plate 510. For example, the fifth hole 590 may couple or connect the first support member 500 to the vibration device 800. According to an embodiment of the present disclosure, the fifth hole 590 may connect or couple the first support member 500 to the support portion 1110. For example, the fifth hole 590 may be formed adjacent to the (1-1) hole 551 and the (1-2) hole 552. For example, the fifth hole 590 may include a (5-1) hole 591 adjacent to the (1-1) hole 551 and a (5-2) hole 592 adjacent to the (1-2) hole 552.

[0385] The forming portion 520 according to an embodiment of the present disclosure may be provided at the rear surface of the display panel 200. For example, the forming portion 520 may be provided to face the rear surface of the display panel 200 and may cover the rear surface of the display panel 200.

[0386] The forming portion 520 may be a region extending from the (1-1) plate 510 in the outward direction of the (1-1) plate 510. For example, one end or a part of the forming portion 520 may be connected to the outer end portion or the outer part of the (1-1) plate 510. The forming portion 520 may support the vibration device 800. The forming portion 520 may increase or enhance the stiffness of the first support member 500 and may be formed to be recessed or protruded from the (1-1) plate 510. For example, in order to reduce or minimize the increase in the thickness (or height) of the vibration device 800 or to make the display device thinner, the forming portion 520 may be formed to protrude from the (1-1) plate 510 toward the display panel 200, but the embodiments of the present disclosure are not limited thereto.

[0387] The forming part 520 according to an embodiment of the present disclosure may be configured with one or more sub-forming parts. For example, the forming part 520 may have a structure in which a plurality of sub-forming parts are arranged in a stepped shape, but the embodiments of the present disclosure are not limited thereto. For example, the plurality of sub-forming parts may be provided as an integral body or a single body.

[0388] Referring to Figure 7A , the forming part 520 may include: a first sub-forming part 521 that extends in an outward direction of the (1-1) plate 510 to include an inclined surface that faces the rear surface of the display panel 200 from an outer end portion or the outside of the (1-1) plate 510; a second sub-forming part 522 that extends in an outward direction of the (1-1) plate 510 from an outer end portion (or the other end or the outer part or other part) of the first sub-forming part 521 to be horizontal (e.g., parallel) to the display panel 200; and a third sub-forming part 523 that extends in an outward direction of the (1-1) plate 510 from the second sub-forming part 522.

[0389] According to an embodiment of the present disclosure, the third sub-forming part 523 may extend along an outer end portion or one side or a part of the second sub-forming part 522 toward the rear surface of the display panel 200. For example, the third sub-forming part 523 may extend in an outward direction or a side direction of the (1-1) plate 510 toward the rear surface of the display panel 200 to have an inclined surface. For example, one end of the third sub-forming part 523 may be connected to an outer end portion (e.g., the outer part or the other end or other part) of the second sub-forming part 522, and the other end of the third sub-forming part 523 may be connected to the (1-2) plate 530. For example, the other end of the third sub-forming part 523 may be connected to a surface of the (1-2) plate 530 that faces the inner surface of the display device. For example, the first sub-forming part 521 and the third sub-forming part 523 may have a slope in a range greater than 0 degrees and not greater than 90 degrees.

[0390] Referring to Figure 7B , the forming part 520 may include a first sub-forming part 521 and a second sub-forming part 522. The first sub-forming part 521 extends in an outward direction of the (1-1) plate 510 to include an inclined surface that faces the rear surface of the display panel 200 from an outer end portion of the (1-1) plate 510, and the second sub-forming part 522 extends in an outward direction of the (1-1) plate 510 from the first sub-forming part 521.

[0391] According to an embodiment of the present disclosure, the second sub-forming portion 522 may extend from the first sub-forming portion 521 to be horizontal (e.g., parallel) to the display panel 200. For example, the second sub-forming portion 522 may extend along the outer end portion (e.g., the other end) of the first sub-forming portion 521. For example, the second sub-forming portion 522 may extend horizontally (e.g., parallel) to the display panel 200 on the same horizontal plane as the (1-2)nd plate 530. For example, one end of the second sub-forming portion 522 may be connected to the other end of the first sub-forming portion 521, and the other end of the second sub-forming portion 522 may be connected to the (1-2)nd plate 530. For example, the other end of the second sub-forming portion 522 may be connected to the surface of the (1-2)nd plate 530 that faces the inner surface of the display device.

[0392] Referring to Figure 7C , the forming portion 520 may include a first sub-forming portion 521 that extends from the (1-1)st plate 510 in the outward direction or one side direction of the (1-1)st plate 510.

[0393] According to an embodiment of the present disclosure, the first sub-forming portion 521 may extend along the outer end portion or one side of the (1-1)st plate 510 toward the rear surface of the display panel 200. For example, the first sub-forming portion 521 may extend in the outward direction or one side direction of the (1-1)st plate 510 toward the rear surface of the display panel 200 to include an inclined surface. For example, one end (e.g., one side) of the first sub-forming portion 521 may be connected to the outer end portion or one side of the (1-1)st plate 510, and the other end (e.g., the other side) of the first sub-forming portion 521 may be connected to the (1-2)nd plate 530. For example, the other end (e.g., the other side) of the first sub-forming portion 521 may be connected to the surface of the (1-2)nd plate 530 that faces the inner surface of the display device.

[0394] The (1-2)nd plate (e.g., the (1-2)nd support plate) 530 according to an embodiment of the present disclosure may be disposed at the rear surface of the front member 100. The (1-2)nd plate 530 may constitute a peripheral portion of the first support member 500 and may be disposed at the rear surface of the support frame 400. The (1-2)nd plate 530 may be a region that extends from the forming portion 520 in the outward direction or one side direction of the (1-1)st plate 510. The (1-2)nd plate 530 may include a hole H (e.g., a slit), and a part of the driving circuit 300 may pass through or extend through the hole H (e.g., the slit). For example, the PCB 330 of the driving circuit 300 may pass through or extend through the hole H and may be disposed at the rear surface of the first support member 500.

[0395] According to an embodiment of the present disclosure, the (1-2)nd plate 530 may be disposed at the rear surface of the support frame 400 through a second connection member (e.g., a second coupling member) 540. For example, the (1-2)nd plate 530 may be disposed at the rear surface of the support frame 400 through the second connection member 540 (e.g., connected or coupled to the rear surface of the support frame 400).

[0396] According to an embodiment of the present disclosure, a plurality of second connection members 540 may be provided, and the plurality of second connection members 540 may be disposed at the (1-2)nd plate 530. For example, the second connection member 540 may be a screw or a bolt, but the embodiments of the present disclosure are not limited thereto. For example, when the second connection member 540 is a screw or a bolt, the second connection member 540 may be fastened to the support frame 400 at the rear surface of the (1-2)nd plate 530 and may be connected or coupled to the connection portion 430 of the support frame 400. For example, holes may be formed in the area of the (1-2)nd plate 530 where the second connection member 540 is provided so that the coupling (or fastening) of the second connection member 540 can be relatively easy.

[0397] As another embodiment of the present disclosure, the second connection member 540 may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but the embodiments of the present disclosure are not limited thereto. For example, the second connection member 540 may be disposed between the support frame 400 and the second connection member 540. For example, the adhesive resin and the adhesive layer of the second connection member 540 may include an acrylic-based or polyurethane-based adhesive material, but the embodiments of the present disclosure are not limited thereto. For example, in the second connection member 540, the adhesive resin and the adhesive layer may include a polyurethane-based adhesive material having relatively ductile characteristics instead of an acrylic-based adhesive material having relatively high hardness characteristics, for reducing, preventing or minimizing the vibration of the first support member 500 transmitted to the support frame 400 through the vibration of the vibration device 800, but the embodiments of the present disclosure are not limited thereto.

[0398] The (1-2)nd plate 530 according to an embodiment of the present disclosure may include a (2-1) area (e.g., a (2-1) plate area) 531 and a (2-2) area (e.g., a (2-2) plate area) 533.

[0399] According to an embodiment of the present disclosure, the (2-1) region 531 may be a portion corresponding to the rear surface of the support frame 400, and the (2-2) region 533 may be a portion between the forming portion 520 and the (2-1) region 531. For example, the (2-1) region 531 may be disposed at the rear surface of the support frame 400 through the second connection member 540. For example, the (2-2) region 533 may include a hole H. For example, the hole H (e.g., a slit) may be formed at the (2-2) region 533 of the (1-2) plate 530 disposed at the first peripheral portion of the first support member 500. For example, the (2-2) region 533 may have a size and shape such that the PCB 330 of the driving circuit 300 can pass through or extend through the (2-2) region 533.

[0400] The plate 530 may be disposed along the support frame 400, and the front member 100 and the support frame 400 may be supported by the first support member 500. Accordingly, the four (e.g., upper, lower, left, and right) peripheral portions of each of the front member 100 and the support frame 400 may be entirely or completely supported by the (1-2) plate 530, and the stiffness of the entire upper peripheral portion, lower peripheral portion, left peripheral portion, and right peripheral portion of each of the front member 100, the support frame 400, and the first support member 500 may be the same. Accordingly, the vibration module of the display panel 200 may be formed near the vibration device 800, and the vibration region (e.g., the excitation position) of the vibration device 800 may match the maximum displacement position of the display panel 200, thereby enhancing the vibration efficiency of the vibration device 800. Accordingly, the sound pressure level, sound quality, and reproduced tone vocal cords of the sound generated based on the vibration of the display panel 200 may be enhanced.

[0401] Figure 8A The second support member and the third support member according to an embodiment of the present disclosure are shown. Figure 8B The second support member and the third support member according to an embodiment of the present disclosure are shown. Figure 8C The second support member and the third support member according to an embodiment of the present disclosure are shown.

[0402] Figures 8A to 8C The second support member and the third support member according to an embodiment of the present disclosure are shown.

[0403] Refer to Figure 5 and Figures 8A to 8C, the second support member 600 may be disposed at the rear surface of the first support member 500. For example, the second support member 600 may have a structure in which the second support member 600 may pass through or extend through the hole H of the first support member 500, and a part of the drive circuit 300 disposed at the rear surface of the first support member 500 may be mounted on the second support member 600. For example, the second support member 600 may have a structure in which the PCB 330 of the drive circuit 300 is disposed thereon. For example, the second support member 600 may be disposed between the rear surface of the first support member 500 and the PCB 330, and may support the PCB 330. For example, the PCB 330 may be disposed at the rear surface of the second support member 600. For example, the PCB 330 may be disposed at the side surface of the second support member 600.

[0404] The second support member 600 according to an embodiment of the present disclosure may be configured with one plate or a plurality of plates. For example, the second support member 600 may have a structure in which a plurality of plates are arranged in a shape, but the embodiments of the present disclosure are not limited thereto. For example, the plurality of plates may be provided as an integral body or a single body.

[0405] Referring to Figure 5 and Figure 8A , the second support member 600 may include a (2-1) plate (or a (2-1) support plate) 610. For example, the PCB 330 of the drive circuit 300 may be disposed at the rear surface of the (2-1) plate 610. For example, the (2-1) plate 610 may have a flat shape, but the embodiments of the present disclosure are not limited thereto. For example, a part of the flexible circuit film 310 connected to the PCB 330 may be disposed at the rear surface of the (2-1) plate 610.

[0406] According to an embodiment of the present disclosure, the PCB 330 may be disposed at the rear surface of the (2-1) plate 610 through a (3-1) support member 710. For example, the (3-1) support member 710 may be disposed between the rear surface of the (2-1) plate 610 and the PCB 330. For example, when the flexible circuit film 310 is disposed at the rear surface of the (2-1) plate 610, the (3-1) support member 710 may be disposed between the (2-1) plate 610 and the flexible circuit film 310 disposed at the rear surface of the (2-1) plate 610.

[0407] According to an embodiment of the present disclosure, the (3-1)st support member 710 may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but embodiments of the present disclosure are not limited thereto. For example, the adhesive resin and the adhesive layer of the (3-1)st support member 710 may include an acrylic-based or polyurethane-based adhesive material, but embodiments of the present disclosure are not limited thereto. For example, the adhesive resin and the adhesive layer of the (3-1)st support member 710 may include a polyurethane-based adhesive material having relatively ductile characteristics instead of an acrylic-based adhesive material having relatively high hardness characteristics, for reducing, preventing, or minimizing the vibration of the (3-1)st support member 710 from being transmitted to the support frame 400 through the vibration of the vibration device 800, but embodiments of the present disclosure are not limited thereto.

[0408] According to an embodiment of the present disclosure, the (2-1)st plate 610 may be disposed on the bottom surface (e.g., the first surface or the lower surface) of the first support member 500 (e.g., the rear surface of the (1-1)st plate 510 of the first support member 500) to be horizontal (e.g., parallel) to the display panel 200. For example, the (2-1)st plate 610 may be connected (or coupled) to the (1-1)st plate 510 and disposed at the (1-1)st plate 510. In addition, the (2-1)st plate 610 may horizontally extend in the outward direction or one side direction of the first support member 500 and may overlap with the forming portion 520 and the (1-2)nd plate 530.

[0409] According to an embodiment of the present disclosure, the (2-1)st plate 610 may be disposed at the rear surface of the (1-1)st plate 510 through a third connection member (e.g., a third coupling member) 640. For example, the (2-1)st plate 610 may include an extension portion 615 extending from one end (e.g., one side) of the (2-1)st plate 610, and the extension portion 615 may be connected (or coupled) to the rear surface of the (1-1)st plate 510 through the third connection member 640.

[0410] According to an embodiment of the present disclosure, a plurality of third connection members 640 may be provided, and the plurality of third connection members 640 may be disposed at the (2-1)st plate 610. For example, the third connection member 640 may be a screw or a bolt, but embodiments of the present disclosure are not limited thereto. For example, when the third connection member 640 is a screw or a bolt, the third connection member 640 may be fastened to the (1-1)st plate 510 at the rear surface of the (2-1)st plate 610. For example, holes may be formed in the region of the (2-1)st plate 610 where the third connection member 640 is provided, so that the coupling (or fastening) of the third connection member 640 may be relatively easy.

[0411] As another embodiment of the present disclosure, the third connection member 640 may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but the embodiments of the present disclosure are not limited thereto. For example, the third connection member 640 may be disposed between the (1-1) plate 510 and the (2-1) plate 610. For example, the adhesive resin and the adhesive layer of the third connection member 640 may include an acrylic-based or polyurethane-based adhesive material, but the embodiments of the present disclosure are not limited thereto. For example, in the third connection member 640, the adhesive resin and the adhesive layer may include a polyurethane-based adhesive material having relatively ductile characteristics instead of an acrylic-based adhesive material having relatively high hardness characteristics, for reducing, preventing, or minimizing the vibration of the second support member 600 from being transmitted to the support frame 400 through the vibration of the vibration device 800, but the embodiments of the present disclosure are not limited thereto.

[0412] Referring Figure 5 and Figure 8B , the second support member 600 may further include a (2-2) plate (e.g., a (2-2) support plate) 620 that is bent from the other end of the (2-1) plate 610 and extends toward the display panel 200.

[0413] According to an embodiment of the present disclosure, the flexible circuit film 310 may extend along the outer side or one side of the (2-2) plate 620 toward the rear surface of the (2-1) plate 610 through the hole H of the first support member 500, and may be stably disposed at the (2-2) plate 620 through the (3-2) support member 720. For example, the (3-2) support member 720 may be disposed between the (2-2) plate 620 and the flexible circuit film 310. According to an embodiment of the present disclosure, the PCB 330 of the driving circuit 300 may be disposed at the (2-2) plate 620. For example, the PCB 330 may be disposed outside the (2-2) plate 620 through the (3-2) support member 720. For example, the (3-2) support member 720 may be disposed between the (2-2) plate 620 and the PCB 330. For example, the (3-2) support member 720 and the (3-1) support member 710 may be provided as one body or a single body. For example, the (3-2) support member 720 may be independently configured from the (3-1) support member 710.

[0414] According to an embodiment of the present disclosure, one end (e.g., one side or a part) of the (2-2) plate 620 may be connected to the other end (e.g., the other side or the other part) of the (2-1) plate 610. For example, the other end (e.g., the other side or the other part) of the (2-2) plate 620 may be disposed at the lower surface of the (1-2) plate 530.

[0415] According to an embodiment of the present disclosure, the (2-2)nd plate 620 may be disposed at the lower surface of the (1-2)nd plate 530 through the (3-3)rd support member 730. For example, the (3-3)rd support member 730 may be disposed between the lower surfaces of the (2-2)nd plate 620 and the (1-2)nd plate 530. For example, the (3-3)rd support member 730 may be constructed independently of the (3-2)nd support member 720.

[0416] According to an embodiment of the present disclosure, the (3-2)nd support member 720 and the (3-3)rd support member 730 may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but embodiments of the present disclosure are not limited thereto. For example, the adhesive resin and the adhesive layer of each of the (3-2)nd support member 720 and the (3-3)rd support member 730 may include an acrylic-based or polyurethane-based adhesive material, but embodiments of the present disclosure are not limited thereto. For example, in each of the (3-2)nd support member 720 and the (3-3)rd support member 730, the adhesive resin and the adhesive layer may include a polyurethane-based adhesive material having relatively ductile characteristics, rather than an acrylic-based adhesive material having relatively high hardness characteristics, to reduce or prevent the vibration of each of the (3-2)nd support member 720 and the (3-3)rd support member 730 from being transmitted to the support frame 400 through the vibration of the vibration device 800 or to minimize it, but embodiments of the present disclosure are not limited thereto.

[0417] When the second support member 600 is only configured with the (2-1)nd plate 610, the other ends (e.g., other sides) of the (2-1)nd plate 610 may float, and thus, may be vulnerable to vibration. For this reason, the PCB 330 disposed at the (2-1)nd plate 610 may be damaged, or a separation phenomenon may occur between the PCB 330 and the flexible circuit film 310, and the data driving IC 320 may be damaged due to the vibration or shaking of the flexible circuit film 310 caused by the vibration or jitter of the PCB 330. However, when the second support member 600 includes the (2-2)nd plate 620 disposed at the (1-2)nd plate 530, the second support member 600 may be supported by the first support member 500 based on the (2-2)nd plate 620. Therefore, the stability of the vibration of the vibration device 800 can be ensured. Accordingly, the damage to the PCB 330 disposed at the second support member 600 can be reduced or prevented, or the separation phenomenon between the PCB 330 and the flexible circuit film 310 can be reduced or prevented.

[0418] Refer to Figure 5 and Figure 8C, the second support member 600 may further include a (2-3) plate (e.g., a (2-3) support plate) 630 that bends from the other end (e.g., the other side or other part) of the (2-2) plate 620 and extends in the inward direction of the first support member 500 to be horizontal (e.g., parallel) to the display panel 200. The (2-3) plate 630 may extend from the (2-2) plate 620 along the rear surface of the first support member 500 in the central direction of the first support member 500.

[0419] According to an embodiment of the present disclosure, the (2-3) plate 630 may be disposed at the rear surface of the first support member 500 through a (3-4) support member 740. For example, the (2-3) plate 630 may be disposed at the rear surface of the (1-2) plate 530 of the first support member 500 through the (3-4) support member 740. For example, one end (e.g., one side or a part) of the (2-3) plate 630 may be connected to the other end (e.g., the other side or other part) of the (2-2) plate 620. For example, the other end (e.g., the other side or other part) of the (2-3) plate 630 may be fixedly disposed at the rear surface of the (1-2) plate 530. For example, the (3-4) support member 740 may be disposed between the (1-2) plate 530 and the (2-3) plate 630. For example, the (3-4) support member 740 and the (3-3) support member 730 may be provided as one body or a single body. For example, the (3-4) support member 740 may be constructed independently of the (3-3) support member 730.

[0420] According to an embodiment of the present disclosure, the (3-4) support member 740 may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but the embodiments of the present disclosure are not limited thereto. For example, the adhesive resin and the adhesive layer of each of the (3-2) support member 720 and the (3-3) support member 730 may include an acrylic-based or polyurethane-based adhesive material, but the embodiments of the present disclosure are not limited thereto. For example, in each of the (3-2) support member 720 and the (3-3) support member 730, the adhesive resin and the adhesive layer may include a polyurethane-based adhesive material having relatively ductile properties instead of an acrylic-based adhesive material having relatively high hardness properties to reduce, prevent or minimize the vibration of each of the (3-2) support member 720 and the (3-3) support member 730 transmitted to the support frame 400 through the vibration of the vibration device 800, but the embodiments of the present disclosure are not limited thereto.

[0421] When the second support member 600 includes the (2-3) plate 630, the area where the second support member 600 contacts the first support member 500 can be enlarged by the (2-3 plate) 630. Accordingly, the second support member 600 can be more stably supported by the first support member 500. Accordingly, damage to the PCB 330 provided at the second support member 600 can be reduced or prevented, or the separation phenomenon between the PCB 330 and the flexible circuit film 310 can be more effectively reduced or prevented.

[0422] According to an embodiment of the present disclosure, the second support member 600 may further include a fourth connection member (e.g., a fourth coupling member) 750 to place the (2-3) plate 630 at the (1-2) plate 530. For example, the fourth connection member 750 may be a screw or a bolt, but embodiments of the present disclosure are not limited thereto. For example, when the fourth connection member 750 is a screw or a bolt, the fourth connection member 750 may be fastened to the (2-3) plate 630 at the front surface of the (1-2) plate 530. For example, holes may be formed in areas of each of the (1-2) plate 530 and the (2-3) plate 630 where the fourth connection member 750 is provided, such that the coupling (or fastening) of the fourth connection member 750 may be relatively easy.

[0423] A vibration device (e.g., a first vibration device) 800 may be provided between the first support member 500 and the display panel 200. The vibration device 800 may be supported by the first support member 500 and may vibrate the display panel 200. The vibration device 800 may vibrate based on a drive signal including a haptic feedback signal or an audio signal to directly vibrate the display panel 200. Accordingly, a sound DVS may be generated based on the vibration of the display panel 200, or haptic feedback (e.g., haptic vibration) may be generated in response to a user touch. For example, the vibration device 800 may generate a sound DVS of a mid-low pitch vocal band. For example, the vibration device 800 may be provided in a central region of the display panel 200.

[0424] The vibration device 800 according to an embodiment of the present disclosure may include a bobbin and a coil wound around the bobbin. The bobbin may contact the rear surface of the display panel 200.

[0425] According to an embodiment of the present disclosure, the vibration device 800 may include one vibration device or a plurality of vibration devices. For example, the vibration device 800 may include a first vibration device 810 and a second vibration device 830. For example, both the first vibration device 810 and the second vibration device 830 may be coil-type vibration devices.

[0426] Each of the first vibration device 810 and the second vibration device 830 can be supported by the first support member 500 or accommodated (e.g., received) in the first support member 500, and can vibrate the display panel 200. For example, each of the first vibration device 810 and the second vibration device 830 can include a bobbin and a coil wound around the bobbin, and the bobbin can contact the rear surface of the display panel 200.

[0427] The first vibration device 810 can be disposed at the first rear region of the display panel 200 and can vibrate the first rear region of the display panel 200.

[0428] The first vibration device 810 can be supported by the first region of the (1-1) plate 510 of the first support member 500 or accommodated (e.g., received) in the first region. For example, a part of the rear surface of the first vibration device 810 can be inserted or accommodated (e.g., received) into the (1-1) hole 551 formed in the (1-1) region of the (1-1) support plate 510.

[0429] The first vibration device 810 can vibrate based on a first driving signal including a haptic feedback signal or an audio signal to directly vibrate the first rear region of the display panel 200. Therefore, a sound DVS can be generated based on the vibration of the display panel 200, or haptic feedback (or haptic vibration) can be generated in response to a user's touch.

[0430] The second vibration device 830 can be disposed at the second rear region of the display panel 200 and can vibrate the second rear region of the display panel 200.

[0431] The second vibration device 830 can be supported by the second region of the (1-1) plate 510 of the first support member 500 or accommodated (e.g., received) in the second region. For example, a part of the rear surface of the second vibration device 830 can be inserted or accommodated (e.g., received) into the (1-1) hole 552 formed in the (1-2) region of the (1-2) support plate 510.

[0432] The second vibration device 830 can vibrate based on a second driving signal including a haptic feedback signal or an audio signal to directly vibrate the second rear region of the display panel 200. Therefore, a sound DVS can be generated based on the vibration of the display panel 200, or haptic feedback (e.g., haptic vibration) can be generated in response to a user's touch.

[0433] The first driving signal and the second driving signal may be the same or different. For example, the first driving signal may include a left sound signal or a first haptic feedback signal corresponding to the first region (or left region) A1 of the display panel 200. The second driving signal may include a right sound signal or a second haptic feedback signal corresponding to the second region (or right region) A2 of the display panel 200.

[0434] Each of the first vibration device 810 and the second vibration device 830 may be disposed at the first support member 500 so as to be symmetric with respect to the center line (e.g., the center line of the width direction length) CL of the display panel 200, and may include substantially the same structure. Each of the first vibration device 810 and the second vibration device 830 may be referred to as a "vibration module", "vibration unit", "actuator", "exciter", "transducer", etc., but the embodiments of the present disclosure are not limited thereto.

[0435] Therefore, the display device according to an embodiment of the present disclosure may use the display panel 200 as a diaphragm for generating sound, and thus may output sound in the forward direction of the display panel 200, thereby improving the sound quality and enhancing the viewer's immersive experience.

[0436] In addition, in the display device according to an embodiment of the present disclosure, when the PCB 330 connected to the display panel 200 is not disposed between the display panel 200 and the first support member 500, the arrangement of the vibration device 800 may be freely set without being affected by the PCB 330. Therefore, the degree of freedom in arranging the vibration device 800 can be ensured. Therefore, based on the effective arrangement of the vibration device 800, the sound pressure level, sound quality, and reproduced tone vocal cords of the sound generated based on the vibration of the display panel 200 can be increased.

[0437] In addition, in the display device according to an embodiment of the present disclosure, the PCB 330 connected to the display panel 200 may be disposed on the rear surface of the first support member 500 and may be spaced apart from the rear surface of the display panel 200. Therefore, damage to the PCB 330 caused by the vibration of the display panel 200 can be reduced or prevented, or minimized.

[0438] Refer to Figures 3 to 5, the display device according to an embodiment of the present disclosure may further include a heat dissipation member 900 disposed at the rear surface of the display panel 200. For example, the heat dissipation member 900 may be disposed between the rear surface of the display panel 200 and the vibration device 800. For example, the heat dissipation member 900 may include a metal material having high thermal conductivity, such as any one or more of aluminum (Al), copper (Cu), silver (Ag), and magnesium (Mg), or an alloy thereof, but the embodiments of the present disclosure are not limited thereto. The heat dissipation member 900 may be indicated by other terms, such as "heat diffusion member", "heat diffusion sheet", "heat diffusion layer", "heat diffusion plate", "radiator", "heat sink", "heat dissipation layer", "heat dissipation plate", etc., but the embodiments of the present disclosure are not limited thereto.

[0439] The heat dissipation member 900 may be disposed at the rear surface of the display panel 200 to overlap with the vibration device 800. Therefore, the heat generated when the vibration device 800 is driven can be diffused toward the display panel 200 to reduce or prevent the performance of the vibration device 800 from being degraded due to heat. In addition, the heat dissipation member 900 may have a size relatively larger than or the same as the central portion of the vibration device 800. Therefore, the heat generated when the vibration device 800 is driven can be diffused to a wide area, thereby reducing or preventing heat from being concentrated and transferred to a local area of the display panel that overlaps with the vibration device 800. Therefore, local brightness non-uniformity of the display panel 200 can be reduced or prevented or minimized.

[0440] The display device according to an embodiment of the present disclosure may further include a fifth connection member 1000 disposed between the display panel 200 and the first support member 500. For example, the fifth connection member 1000 may be disposed between the rear surface of the display panel 200 and the first peripheral portion of the first support member 500. For example, the fifth connection member 1000 may be disposed at the front surface of the first support member 500 to be adjacent to the hole H of the first support member 500. For example, the fifth connection member 1000 may be disposed at the (2-2) area 533 of the (1-2) plate 530 between the vibration device 800 and the hole H.

[0441] According to an embodiment of the present disclosure, the fifth connection member 1000 may have a hexahedral shape having a specific length along one direction Y, but the embodiments of the present disclosure are not limited thereto. For example, the fifth connection member 1000 may have a length corresponding to the length of the hole H. For example, the fifth connection member 1000 may be disposed parallel to the adjacent peripheral portion of the support frame 400. For example, each of the two ends (for example, two portions) of the fifth connection member 1000 in its length direction Y may contact the peripheral portion of the support frame 400.

[0442] The fifth connecting member 1000 may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but embodiments of the present disclosure are not limited thereto. For example, the adhesive resin and the adhesive layer of the fifth connecting member 1000 may include an acrylic-based or polyurethane-based adhesive material, but embodiments of the present disclosure are not limited thereto.

[0443] According to an embodiment of the present disclosure, the fifth connecting member 1000 may increase the coupling force between the display panel 200 and the first support member 500. For example, the fifth connecting member 1000 may reduce or prevent air from flowing out through the hole H, thereby reducing or preventing a change in the sound pressure level in the air gap AG.

[0444] Figure 9 is a plan view showing a support device according to an embodiment of the present disclosure.

[0445] Referring to Figure 3 、 Figure 4 and Figure 9 According to an embodiment of the present disclosure, the display device may further include a support device 1100 to support the vibration device 800. For example, the support device 1100 may be disposed between the first support member 500 and the vibration device 800 and may support the vibration device 800. For example, the support device 1100 may be a molded structure, which may be manufactured by a molding process using a material such as plastic, but embodiments of the present disclosure are not limited thereto.

[0446] According to an embodiment of the present disclosure, the support device 1100 may be an integrated support device that fixes and / or supports the first vibration device 810 and the second vibration device 830 adjacent to each other. Therefore, the first vibration device 810 and the second vibration device 830 fixed by the support device 1100 may be referred to as "a pair of vibration devices".

[0447] The support device 1100 may include a support portion 1110 that supports the rear periphery of the vibration device 800, a receiving portion 1120 that may receive a part of the rear surface of the vibration device 800, and a plurality of connecting portions 1130 configured to fix and / or connect the first support member 500 to the vibration device 800, but embodiments of the present disclosure are not limited thereto.

[0448] According to an embodiment of the present disclosure, the support portion 1110 may have a plate shape, and the receiving portion 1120 and the connecting portion 1130 may be disposed at the support portion 1110. For example, the support portion 1110 may be disposed between the first support member 500 and the rear periphery of the vibration device 800. For example, the support portion 1110 may be fixed by the first support member 500 and may support the vibration device 800.

[0449] According to an embodiment of the present disclosure, the accommodating portion 1120 may accommodate (e.g., receive) a part of the rear surface of the vibration device 800 inserted or accommodated therein. For example, the accommodating portion 1120 may be provided at the support portion 1110 to correspond to the first hole 550 provided in the (1-1) plate 510 of the first support member 500. For example, the accommodating portion 1120 may include a first accommodating portion 1121 and a second accommodating portion 1123. The first accommodating portion 1121 accommodates (e.g., receives) a part of the rear surface of the first vibration device 810, and the second accommodating portion 1123 accommodates (e.g., receives) a part of the rear surface of the second vibration device 830. For example, each of the first accommodating portion 1121 and the second accommodating portion 1123 may be provided at the support portion 1110 to correspond to each of the (1-1) hole 551 and the (1-2) hole 552 provided at the (1-1) plate 510 of the first support member 500.

[0450] According to an embodiment of the present disclosure, the accommodating portion 1120 may be a groove recessed from the side periphery of the support portion 1110 toward the center of the support portion 1110, but the embodiments of the present disclosure are not limited thereto. For example, the accommodating portion 1120 may have a shape corresponding to the shape of a part of the vibration device 800 accommodated (e.g., received) therein.

[0451] According to an embodiment of the present disclosure, the connecting portion 1130 may be a structural material configured to couple or connect the support device 1100 to the first support member 500. The connecting portion 1130 may be provided in plurality, and the plurality of connecting portions 1130 may be provided at the periphery of the support portion 1110. For example, the connecting portion 1130 may include a protruding portion protruding from the periphery of the support portion 1110 and having a hook shape. For example, the connecting portion 1130 may include four protruding portions 1131, 1132, 1133, and 1134, which protrude from each of the four corner regions 1111, 1112, 1113, and 1114 of the support portion 1110 in a hook shape.

[0452] In addition, the support device 1100 may include coupling holes 1115 provided by the support portion 1110 and the connecting portion 1130. For example, the support device 1100 may include a plurality of coupling holes 1115a, 1115b, 1115c, and 1115d provided by the support portion 1110 and each of the protruding portions 1131, 1131, 11132, and 1134. For example, the coupling holes 1115 may be provided to correspond to each of the fourth holes 580 provided at the (1-1) plate 510 of the first support member 500.

[0453] According to an embodiment of the present disclosure, the support device 1100 may be coupled to the first support member 500 through a sixth connection member 1140. For example, the sixth connection member 1140 may be a screw or a bolt, but the embodiments of the present disclosure are not limited thereto. For example, the sixth connection member 1140 may be inserted through the fourth hole 580 or received at the rear surface of the first support member 500, and the sixth connection member 1140 may be connected (or fastened) to the coupling hole 1115 of the support device 1100.

[0454] The display device or the vibration device according to an embodiment of the present disclosure may further include a second vibration device 1200 disposed at the rear surface of the display panel 200. The second vibration device 1200 may vibrate the display panel 200 to generate sound. For example, the second vibration device 1200 may be disposed between the first support member 500 and the display panel 200. The second vibration device 1200 may vibrate based on a driving signal including a haptic feedback signal or a sound signal to directly vibrate the display panel 200 or directly vibrate, and thus, sound DVS may be generated based on the vibration of the display panel 200, or haptic feedback (e.g., haptic vibration) may be generated in response to a user's touch. For example, the second vibration device 1200 may generate sound DVS of a medium and high pitch vocal band. For example, the vibration device 800 may be disposed at a peripheral portion of the display panel 200.

[0455] The second vibration device 1200 according to an embodiment of the present disclosure may be configured with a different vibration device from the vibration device (e.g., the first vibration device) 800. For example, the second vibration device 1200 may be configured with a film type vibration device. For example, the second vibration device 1200 may be configured with one film type vibration device or a plurality of film type vibration devices.

[0456] Referring to Figure 3 and Figure 4 , the second vibration device 1200 according to an embodiment of the present disclosure may be a third vibration device 1210 and a fourth vibration device 1230. The third vibration device 1210 may be disposed at a third rear region of the display panel 200, and may vibrate the third rear region of the display panel 200. The fourth vibration device 1230 may be disposed at a fourth rear region of the display panel 200, and may vibrate the fourth rear region of the display panel 200.

[0457] The third vibration device 1210 may vibrate based on a third driving signal including a haptic feedback signal or a sound signal to vibrate the third rear region of the display panel 200 (e.g., directly vibrate), and thus, sound DVS may be generated based on the vibration of the display panel 200, or haptic feedback (e.g., haptic vibration) may be generated in response to a user's touch.

[0458] The fourth vibration device 1230 can vibrate based on a fourth driving signal including a haptic feedback signal or a sound signal, so as to vibrate the fourth rear area of the display panel 200 (for example, directly vibrate). Therefore, a sound DVS can be generated based on the vibration of the display panel 200, or haptic feedback (for example, haptic vibration) can be generated in response to user touch.

[0459] The third driving signal and the fourth driving signal can be the same or different. For example, the third driving signal can include a left sound signal or a third haptic feedback signal corresponding to the first area (for example, the left area) A1 of the display panel 200. The fourth driving signal can include a right sound signal or a fourth haptic feedback signal corresponding to the second area (for example, the right area) A2 of the display panel 200.

[0460] Each of the third vibration device 1210 and the fourth vibration device 1230 can be disposed at the first support member 500, so as to be symmetric with respect to the center line (or the center line in the width direction length) CL of the display panel 200, and can include substantially the same structure. Each of the third vibration device 1210 and the fourth vibration device 1230 can be referred to as a "flexible sound module", "flexible sound generator", "flexible actuator", "flexible speaker", "flexible piezoelectric speaker", "membrane actuator", "membrane-type piezoelectric composite actuator", "membrane speaker", "membrane-type piezoelectric speaker", "membrane-type piezoelectric composite speaker", etc., but the embodiments of the present disclosure are not limited thereto.

[0461] Figure 10 A second vibration device according to an embodiment of the present disclosure is shown.

[0462] Refer to Figure 10 According to, the second vibration device 1200 according to an embodiment of the present disclosure can include a piezoelectric vibration part 1201, a first electrode part E1, and a second electrode part E2.

[0463] The piezoelectric vibration part 1201 can include a piezoelectric material (for example, an electroactive material) having a piezoelectric effect. For example, the piezoelectric material can have such a property that when pressure or distortion (for example, bending) is applied to the crystal structure by an external force, a potential difference appears due to the relative position change of positive (+) ions and negative (-) ions caused by dielectric polarization, and vibration is generated by an electric field based on the reverse voltage applied thereto. The piezoelectric vibration part 1201 can be referred to as a "vibration layer", "piezoelectric layer", "piezoelectric material layer", "electroactive layer", "vibration part", "piezoelectric material part", "electroactive part", "piezoelectric structure", "inorganic material layer", "inorganic material part", etc., but the embodiments of the present disclosure are not limited thereto.

[0464] The piezoelectric vibration section 1201 can be formed of a transparent, translucent, or opaque piezoelectric material (e.g., electroactive material) and can be transparent, translucent (or nearly transparent), or opaque. The piezoelectric vibration section 1201 can include a ceramic-based material for generating relatively high vibrations or can include a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure can have a piezoelectric effect and an inverse piezoelectric effect and can be a plate-like structure having an orientation or alignment. The perovskite crystal structure can be represented by the chemical formula "ABO3". In the chemical formula, "A" can include a divalent metal element and "B" can include a tetravalent metal element. For example, in the chemical formula "ABO3", "A" and "B" can be cations and "O" can be an anion. For example, the chemical formula "ABO3" can include one of lead titanate (II) (PbTiO3), lead zirconate (PbZrO3), lead zirconate titanate (PbZrTiO3), barium titanate (BaTiO3), and strontium titanate (SrTiO3), but embodiments of the present disclosure are not limited thereto.

[0465] The piezoelectric vibration section 1201 according to an embodiment of the present disclosure can include a lead zirconate titanate (PZT)-based material including lead (Pb), zirconium (Zr), and titanium (Ti); or can include a lead zirconate nickel niobate (PZNN)-based material including lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but embodiments of the present disclosure are not limited thereto. Further, the piezoelectric vibration section 1201 can include at least one or more of calcium titanate (CaTiO3), BaTiO3, SrTiO3, each without Pb, but embodiments of the present disclosure are not limited thereto.

[0466] The piezoelectric vibration section 1201 according to an embodiment of the present disclosure can include a circular, elliptical, or polygonal shape, but embodiments of the present disclosure are not limited thereto.

[0467] The first electrode portion E1 can be disposed at the first surface (e.g., upper surface) of the piezoelectric vibration section 1201 and can be electrically connected to the first surface of the piezoelectric vibration section 1201. For example, the first electrode portion E1 can have a monomer electrode disposed at the entire first surface of the piezoelectric vibration section 1201. For example, the first electrode portion E1 can have the same shape as the piezoelectric vibration section 1201, but embodiments of the present disclosure are not limited thereto. The first electrode portion E1 according to an embodiment of the present disclosure can include a transparent conductive material, a translucent conductive material, or an opaque conductive material. For example, the transparent conductive material or the translucent conductive material can include indium tin oxide (ITO) or indium zinc oxide (IZO), but is not limited thereto. Examples of the opaque conductive material can include aluminum (Al), copper (Cu), gold (Au), silver (Ag), molybdenum (Mo), magnesium (Mg), and their alloys, etc., but embodiments of the present disclosure are not limited thereto.

[0468] The second electrode portion E2 may be provided at a second surface (e.g., a rear surface) opposite to the first surface of the piezoelectric vibration portion 1201, and may be electrically connected to the second surface of the piezoelectric vibration portion 1201. For example, the second electrode portion E2 may have a monomer electrode provided at the entire second surface of the piezoelectric vibration portion 1201. For example, the second electrode portion E2 may have a size larger than that of the piezoelectric vibration portion 1201 and may have the same shape as the piezoelectric vibration portion 1201, but the embodiments of the present disclosure are not limited thereto. The second electrode portion E2 according to an embodiment of the present disclosure may include a transparent conductive material, a translucent conductive material, or an opaque conductive material. For example, the second electrode portion E2 may include the same material as that of the first electrode portion E1, but the embodiments of the present disclosure are not limited thereto. As another embodiment of the present disclosure, the second electrode portion E2 may include a material different from that of the first electrode portion E1.

[0469] The piezoelectric vibration portion 1201 may be polarized (e.g., poled) by applying a specific voltage to the first electrode portion E1 and the second electrode portion E2 in a specific temperature atmosphere or in a temperature atmosphere that can change from a high temperature to room temperature, but the embodiments of the present disclosure are not limited thereto. For example, the piezoelectric vibration portion 1201 may vibrate by alternately contracting and expanding based on the inverse piezoelectric effect according to a sound signal (e.g., a voice signal) externally applied to the first electrode portion E1 and the second electrode portion E2.

[0470] The second vibration device 1200 according to an embodiment of the present disclosure may further include a first protection member and a second protection member.

[0471] The first protection member may be provided above the first electrode portion E1 and may protect the first electrode portion E1. For example, the first protection member may be formed of a plastic material, a fiber material, or a wood material, but the embodiments of the present disclosure are not limited thereto.

[0472] The second protection member may be provided above the second electrode portion E2 and may protect the second electrode portion E2. For example, the second protection member may be formed of a plastic material, a fiber material, or a wood material, but the embodiments of the present disclosure are not limited thereto. For example, the first protection member may include the same or different material as the second protection member. One or more of the first protection member and the second protection member may be attached to or coupled to the display panel through an adhesive member.

[0473] Figure 11 A second vibration device according to another embodiment of the present disclosure is shown.

[0474] Refer to Figure 11, the second vibration device 1200 according to another embodiment of the present disclosure may include a piezoelectric vibration part 1201, a first electrode part E1, and a second electrode part E2.

[0475] The piezoelectric vibration part 1203 may include a piezoelectric material, a composite piezoelectric material, or an electroactive material having a piezoelectric effect, but is not limited thereto. The piezoelectric vibration part 1203 may be referred to as a "vibration layer", "piezoelectric layer", "piezoelectric material layer", "electroactive layer", "vibration part", "piezoelectric material part", "electroactive part", "piezoelectric structure", "piezoelectric composite layer", "piezoelectric composite", "piezoelectric ceramic composite", etc., but the embodiments of the present disclosure are not limited thereto. The piezoelectric vibration part 1203 may be formed of a transparent, translucent, or opaque piezoelectric material and may be transparent, translucent, or opaque.

[0476] The piezoelectric vibration part 1203 according to an embodiment of the present disclosure may include a plurality of first parts 1203a and a plurality of second parts 1203b. For example, the plurality of first parts 1203a and the plurality of second parts 1203b may be alternately and repeatedly arranged along the first direction X (or the second direction Y). For example, the first direction X may be the width direction or the first horizontal direction of the piezoelectric vibration part 1203. The second direction Y may be the length direction or the second horizontal direction of the piezoelectric vibration part 1203. The embodiments of the present disclosure are not limited thereto. For example, the first direction X may be the length direction or the second horizontal direction of the piezoelectric vibration part 1203, and the second direction Y may be the width direction or the first horizontal direction of the piezoelectric vibration part 1203.

[0477] Each of the plurality of first parts 1203a may be configured with an inorganic material part. The inorganic material part may include the above-mentioned piezoelectric material. For example, each of the plurality of first parts 1203a may include a piezoelectric material that is substantially the same as the piezoelectric vibration part 1201 described above with reference to Figure 10 Therefore, the same reference numerals denote the same elements, and repeated descriptions thereof may be omitted.

[0478] Each of a plurality of first portions 1203a according to an embodiment of the present disclosure may be disposed between a plurality of second portions 1203b. For example, the plurality of first portions 1203a may have a first width W1 parallel to the first direction X (or the second direction Y), and may have a length parallel to the second direction Y (or the first direction X). Each of the plurality of second portions 1203b may have a second width W2 parallel to the first direction X (or the second direction Y), and may have a length parallel to the second direction Y (or the first direction X). The first width W1 may be the same as or different from the second width W2. For example, the first width W1 may be greater than the second width W2. For example, the first portion 1203a and the second portion 1203b may include linear or strip shapes having the same or different sizes. Accordingly, the piezoelectric vibration portion 1203 may include a 2-2 composite, and thus may have a resonance frequency of 20 kHz or less, but embodiments of the present disclosure are not limited thereto. For example, the resonance frequency of the piezoelectric vibration portion 1203 may vary based on one or more of shape, length, and thickness.

[0479] In the piezoelectric vibration portion 1203, each of the plurality of first portions 1203a and the plurality of second portions 1203b may be disposed (or arranged) in parallel on the same plane (e.g., the same layer). Each of the plurality of second portions 1203b may be connected or attached to adjacent first portions among the plurality of first portions 1203a. For example, each of the plurality of second portions 1203b may be configured to fill a gap between two adjacent first portions among the plurality of first portions 1203a, and may be connected or attached to an adjacent second portion 1203b. Accordingly, the piezoelectric vibration portion 1203 may extend a desired size or length based on side coupling (or connection) of the first portion 1203a and the second portion 1203b.

[0480] In the piezoelectric vibration portion 1203, the width (e.g., size) W2 of each of the plurality of second portions 1203b may gradually decrease in a direction from the central portion of the piezoelectric vibration portion 1203 or the second vibration device 1200 to two peripheries (e.g., both ends).

[0481] According to an embodiment of the present disclosure, the second part 1203b having the maximum width W2 among the plurality of second parts 1203b may be located at a portion where the highest stress may be concentrated when the piezoelectric vibration part 1201 or the second vibration device 1200 vibrates in the vertical direction Z (e.g., the thickness direction). The second part 1203b having the minimum width W2 among the plurality of second parts 1203b may be located at a portion where relatively low stress may occur when the piezoelectric vibration part 1203 or the second vibration device 1200 vibrates in the vertical direction Z. For example, the second part 1203b having the maximum width W2 among the plurality of second parts 1203b may be provided at the central portion of the piezoelectric vibration part 1203. The second part 1203b having the minimum width W2 among the plurality of second parts 1203b may be provided at each of the two edges or peripheries of the piezoelectric vibration part 1203. Therefore, when the piezoelectric vibration part 1203 or the second vibration device 1200 vibrates in the vertical direction Z, interference of sound waves or overlapping of resonant frequencies that respectively occur in the portion where the highest stress is concentrated can be reduced or minimized. Accordingly, a dipping phenomenon of the sound pressure level occurring in the low-pitched vocal band can be reduced, thereby improving the flatness of the sound characteristics in the low-pitched vocal band. For example, the flatness of the sound characteristics may be a deviation level between the highest sound pressure and the lowest sound pressure.

[0482] In the piezoelectric vibration part 1203, each of the plurality of first parts 1203a may have a different size (e.g., width). For example, the size (e.g., width) of each of the plurality of first parts 1203a may gradually decrease or increase in a direction from the central portion of the piezoelectric vibration part 1203 or the second vibration device 1200 to the two peripheries (e.g., both ends). For example, in the piezoelectric vibration part 1203, based on various natural vibration frequencies according to the vibration of each of the plurality of first parts 1203a having different sizes, the sound pressure level characteristics of sound can be enhanced and the sound reproduction frequency band can be increased.

[0483] The plurality of second parts 1203b may be provided between the plurality of first parts 1203a. Therefore, in the piezoelectric vibration part 1203 or the second vibration device 1200, the vibration energy realized by the link in the unit lattice of each first part 1203a can be increased through the corresponding second part 1203b. Accordingly, the vibration can be increased, and piezoelectric characteristics and flexibility can be ensured. For example, the second part 1203b may include at least one or more of an epoxy-based polymer, an acrylic-based polymer, and a silicone-based polymer, but embodiments of the present disclosure are not limited thereto.

[0484] A plurality of second portions 1203b according to an embodiment of the present disclosure may be configured as organic material portions. For example, the organic material portions may be disposed between the inorganic material portions, may absorb an impact applied to the inorganic material portions (e.g., the first portions), may relieve stress concentrated on the inorganic material portions to enhance the overall durability of the piezoelectric vibration portion 1203 or the second vibration device 1200, and may provide flexibility to the piezoelectric vibration portion 1203 or the second vibration device 1200.

[0485] A plurality of second portions 1203b according to an embodiment of the present disclosure may have a Young's modulus and viscoelasticity lower than those of each first portion 1203a. Accordingly, the second portions 1203b may enhance the reliability of each first portion 1203a that is vulnerable to impact due to its brittle characteristics. For example, the second portions 1203b may include a material having a loss factor of about 0.01 to about 1.0 and a modulus of about 0.1 [GPa] to about 10 [GPa].

[0486] The organic material portions included in the second portions 1203b may include one or more of an organic material, an organic polymer, an organic piezoelectric material, and an organic non-piezoelectric material having flexible characteristics compared to the inorganic material portions of the first portions 1203a. For example, the second portions 1203b may be referred to as "adhesive portions", "elastic portions", "bending portions", "damping portions", or "flexible portions" each having flexibility, but embodiments of the present disclosure are not limited thereto.

[0487] Accordingly, a plurality of first portions 1203a and second portions 1203b may be disposed (e.g., connected to) on the same plane. Accordingly, the piezoelectric vibration portion 1203 of the vibration array according to various embodiments of the present disclosure may have a single thin film type. For example, the piezoelectric vibration portion 1203 may have a structure in which a plurality of first portions 1203a are connected to one side. For example, the plurality of first portions 1203a may have a structure connected to the entire piezoelectric vibration portion 1203. For example, the piezoelectric vibration portion 1203 may vibrate in a vertical direction (e.g., thickness direction) through the first portion 1203a having vibration characteristics, and may be bent into a curved shape through the second portion 1203b having flexibility. Further, in the piezoelectric vibration portion 1203 according to various embodiments of the present disclosure, the sizes of the first portion 1203a and the second portion 1203b may be adjusted based on the piezoelectric characteristics and flexibility required for the piezoelectric vibration portion 1203 or the second vibration device 1200. For example, when it is desired that the piezoelectric vibration portion 1203 has piezoelectric characteristics rather than flexibility, the size of the first portion 1203a may be adjusted to be larger than the size of the second portion 1203b. As another embodiment of the present disclosure, when it is desired that the piezoelectric vibration portion 1203 has flexibility rather than piezoelectric characteristics, the size of the second portion 1203b may be adjusted to be larger than the size of the first portion 1203a. For example, the sizes of the second portion 1203b and the first portion 1203a may be one or more of width, length, and thickness. Accordingly, the size of the piezoelectric vibration portion 1203 may be adjusted based on the characteristics required for the piezoelectric vibration portion 1203. Accordingly, the piezoelectric vibration portion 353 may be designed relatively easily.

[0488] The first electrode portion E1 may be disposed at the first surface (e.g., upper surface) of the piezoelectric vibration portion 1203. The first electrode portion E1 may be commonly disposed on or coupled to the first surface of each of the plurality of first portions 1203a and the first surface of each of the plurality of second portions 1203b, and may be electrically connected to the first surface of each of the plurality of first portions 1203a. For example, the first electrode portion E1 may be a single electrode disposed at the entire first surface of the piezoelectric vibration portion 1203. For example, the first electrode portion E1 may have the same shape as the piezoelectric vibration portion 1203, but the embodiments of the present disclosure are not limited thereto. As described above with reference to Figure 10 the first electrode portion E1 according to an embodiment of the present disclosure may include a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material.

[0489] The second electrode portion E2 may be provided at a second surface (e.g., a rear surface) opposite to the first surface of the piezoelectric vibration portion 1203. The second electrode portion E2 may be commonly provided on or coupled to the second surfaces of each of the plurality of first portions 1203a and the second surfaces of each of the plurality of second portions 1203b, and may be electrically connected to the second surfaces of each of the plurality of first portions 1203a. For example, the second electrode portion E2 may be a single electrode provided on the entire second surface of the piezoelectric vibration portion 1203. For example, the second electrode portion E2 may have the same shape as the piezoelectric vibration portion 1203, but embodiments of the present disclosure are not limited thereto. As described above with reference to Figure 10 the second electrode portion E2 according to an embodiment of the present disclosure may include a transparent conductive material, a translucent conductive material, or an opaque conductive material.

[0490] The piezoelectric vibration portion 1203 may be polarized by applying a specific voltage to the first electrode portion E1 and the second electrode portion E2 in a specific temperature atmosphere or in a temperature atmosphere that can change from a high temperature to room temperature, but embodiments of the present disclosure are not limited thereto. For example, the piezoelectric vibration portion 1203 may vibrate by alternately and repeatedly contracting and expanding based on the inverse piezoelectric effect according to a sound signal (e.g., a voice signal) externally applied to the first electrode portion E1 and the second electrode portion E2. For example, the piezoelectric vibration portion 1203 may vibrate based on the vibration d33 in the vertical direction (e.g., the thickness direction Z) and the vibration d31 in the horizontal direction (e.g., the planar direction) through the first electrode portion E1 and the second electrode portion E2. The piezoelectric vibration portion 1203 may increase the displacement of the display device by contracting and expanding in the horizontal direction, thereby further improving the vibration.

[0491] According to some embodiments of the present disclosure, the second vibration device 1200 may include a plurality of inorganic material portions having piezoelectric characteristics and an organic material portion between the plurality of inorganic material portions. For example, the second vibration device 1200 may include a plurality of inorganic material portions having piezoelectric characteristics and an organic material portion connected between the plurality of inorganic material portions.

[0492] The second vibration device 1200 according to another embodiment of the present disclosure may further include a first protection member and a second protection member.

[0493] The first protection member may be provided above the first electrode portion E1 and may protect the first electrode portion E1. For example, the first protection member may include a plastic material, a fiber material, or a wood material, but embodiments of the present disclosure are not limited thereto.

[0494] The second protective member may be disposed above the second electrode portion E2 and may protect the second electrode portion E2. For example, the second protective member may include a plastic material, a fiber material, or a wood material, but embodiments of the present disclosure are not limited thereto. For example, the first protective member may include the same or different materials as the second protective member. One or more of the first protective member and the second protective member may be attached or coupled to one or more display devices through an adhesive member.

[0495] Figure 12 A second vibration device according to another embodiment of the present disclosure is shown. Figure 12 Shown is Figure 11 an embodiment in which the piezoelectric vibration portion shown in is modified. Accordingly, hereinafter, a repetitive description of elements other than the piezoelectric vibration portion may be omitted or given briefly.

[0496] Referring to Figure 12 , in a second vibration device 1200 according to another embodiment of the present disclosure, the piezoelectric vibration portion 1203 may include a plurality of first portions 1203a and a second portion 1203b. The plurality of first portions 1203a may be spaced apart from each other along a first direction X and a second direction Y, and the second portion 1203b is disposed between the plurality of first portions 1203a.

[0497] Each of the plurality of first portions 1203a may be disposed to be separated from each other along the first direction X and the second direction Y. For example, each of the plurality of first portions 1203a may have a hexahedral shape (e.g., a hexahedral object shape) having the same dimensions and may be disposed in a lattice shape. For example, each of the plurality of first portions 1203a may include a piezoelectric material that is substantially the same as the first portion 1203a described above with reference to Figure 11 . Accordingly, the same reference numerals denote the same elements, and a repetitive description thereof may be omitted.

[0498] The second portion 1203b may be disposed between the plurality of first portions 1203a along each of the first direction X and the second direction Y. The second portion 1203b may be configured to fill a gap or space between two adjacent first portions 1203a or surround each of the plurality of first portions 1203a, and thus may be connected or attached to adjacent first portions 1203a. According to an embodiment of the present disclosure, the width of the second portion 1203b disposed between two adjacent first portions 1203a along the first direction X may be the same as or different from the width of the first portion 1203a, and the width of the second portion 1203b disposed between two adjacent first portions 1203a along the second direction Y may be the same as or different from the width of the first portion 1203a. For example, the second portion 1203b may include the same as described above with reference toFigure 11 The second part 1203b of the description is substantially the same organic material. Thus, the same reference numerals denote the same elements, and their repeated description may be omitted.

[0499] Thus, the piezoelectric vibration part 1203 of the second vibration device 1200 according to another embodiment of the present disclosure may include a 1-3 composite structure, and thus may have a resonance frequency of 30 MHz or less, but the embodiments of the present disclosure are not limited thereto. For example, the resonance frequency of the piezoelectric vibration part 1203 may vary based on one or more of shape, length, and thickness.

[0500] Figure 13 A second vibration device according to another embodiment of the present disclosure is shown.

[0501] Figure 13 Shown is Figure 11 An embodiment in which the piezoelectric vibration part shown is modified. Thus, hereinafter, the repeated description of elements other than the piezoelectric vibration part may be omitted or given briefly.

[0502] Referring to Figure 13 , in the second vibration device 1200 according to another embodiment of the present disclosure, the piezoelectric vibration part 1203 may include a plurality of first parts 1203a and a second part 1203b. The plurality of first parts 1203a may be spaced apart from each other along a first direction X and a second direction Y, and the second part 1203b is disposed between the plurality of first parts 1203a.

[0503] Each of the plurality of first parts 1203a may be arranged to be separated from each other along the first direction X and the second direction Y. For example, each of the plurality of first parts 1203a may have a flat structure with a circular shape, but the embodiments of the present disclosure are not limited thereto. For example, each of the plurality of first parts 1203a may have a dot shape including an elliptical shape, a polygon, or an annular shape.

[0504] The second part 1203b may be disposed between the plurality of first parts 1203a along each of the first direction X and the second direction Y. The second part 1203b may be configured to surround each of the plurality of first parts 1203a, and thus may be connected to or attached to the side surface of each of the plurality of first parts 1203a. The plurality of first parts 1203a and the second part 1203b may be arranged (or disposed) in parallel on the same plane (e.g., the same layer).

[0505] In the piezoelectric vibration portion 1203 of the second vibration device 1200 according to another embodiment of the present disclosure, each of the plurality of first portions 1203a may have a flat structure with a triangular shape instead of a flat structure with a circular shape. For example, each of the plurality of first portions 1203a may have a shape of a triangular plate.

[0506] According to an embodiment of the present disclosure, four adjacent first portions 1203a among the plurality of first portions 1203a may be adjacent to each other to form a quadrangular or quadrilateral shape (e.g., a square shape). The vertices of the four adjacent first portions 1203a forming the quadrangular shape may be adjacent to each other in the central portion (e.g., the center portion) of the quadrilateral shape.

[0507] According to another embodiment of the present disclosure, six adjacent first portions 1203a among the plurality of first portions 1203a may be adjacent to each other to form a hexagonal shape (e.g., a regular hexagonal shape). The vertices of the six adjacent first portions 1203a forming the hexagonal shape may be adjacent to each other in the central portion (or the center portion) of the hexagonal shape.

[0508] The first support member 500 according to an embodiment of the present disclosure may include a fifth hole 590 for coupling the vibration device 800. The frequency-amplitude characteristic may vary based on the number and position of the fifth holes 590 provided in the first support member 500. Accordingly, a display device having a desired frequency-amplitude characteristic may be implemented based on changing the number and arrangement of the fifth holes 590.

[0509] Figure 14A A first support member according to another embodiment of the present disclosure is shown. Figures 14B to 14E Various arrangements of the fifth holes formed in the first support member according to an embodiment of the present disclosure are shown. Figure 15 It is a graph showing the frequency-amplitude characteristics measured in each display device.

[0510] For example, Figure 14A A first support member in which no fifth hole is formed is shown. Figures 14B to 14E Various exemplary arrangements of the fifth holes formed in the first support member are shown. In Figure 15 , the horizontal axis represents frequency (shown in Hertz (Hz)), and the vertical axis represents amplitude (shown in meters (m)). In Figure 15 , the amplitude represents the width of the frequency-based vibration of the vibrating first support member when the display device vibrates, and the amplitude may represent the amount of energy consumed in the vibration of the first support member. Accordingly, since the amount of energy consumed in the vibration of the first support member decreases as the amplitude decreases, the vibration energy transmitted to the display panel may be high. Accordingly, the vibration efficiency of the display panel may be improved.

[0511] In Figure 15 this figure, the thin solid line represents a comparative example. The thick solid line represents the first embodiment of the present disclosure. The dashed line represents the second embodiment of the present disclosure. The single-dot dashed line represents the third embodiment of the present disclosure. The double-dot dashed line represents the fourth embodiment of the present disclosure.

[0512] Referring to Figures 14A to 15 , the fifth hole 590 formed at the first support member 500 can be used to couple the first support member 500 to the vibration device 800. For example, a screw or a bolt can be fastened to the fifth hole 590, and the first support member 500 can be coupled or connected to the vibration device 800.

[0513] Referring to Figures 14A to 15 , the first support member 500a of the experimental example (e.g., Figure 14A ) does not include the fifth hole 590, and the first support members 500b to 500e of the first to fourth embodiment examples of the present disclosure (e.g., Figures 14B to 14E ) include the fifth holes 590b to 590e. At about 1,500 Hz or lower frequencies, it can be seen that the amplitude of the first support member 500a measured in the display device including the first support member 500a of the experimental example (e.g., Figure 14A ) is greater than the amplitude of each of the first support members 500b to 500e measured in the display devices including the first support members 500b to 500e according to the first to fourth embodiment examples of the present disclosure (e.g., Figures 14B to 14E ). In addition, it can be seen that the amplitude of each of the first support members 500b to 500e measured in the display devices including the first support members 500b to 500e according to the first to fourth embodiment examples of the present disclosure (e.g., Figures 14B to 14E ) is more stable than the amplitude of the first support member 500a measured in the display device including the first support member 500a of the experimental example (e.g., Figure 14A ).

[0514] According to an embodiment of the present disclosure, at frequencies of about 1,500 Hz or less, the amplitude of each of the first to fourth embodiment examples of the present disclosure (e.g., Figures 14B to 14E ) is less than the amplitude of the experimental example (e.g., Figure 14A ). Therefore, the amount of energy consumed in the vibration of the first support members 500b to 500e of the first to fourth embodiment examples of the present disclosure (e.g., Figures 14B to 14E ) is less than the amount of energy consumed in the experimental example (e.g., Figure 14A) The amount of energy consumed in the vibration of the first support member, and thus, the sound characteristics of the mid - low - pitched vocal cords are generated. In addition, at frequencies of about 1,500 Hz or less, the amount of change in the amplitude of each of the first to fourth embodiments of the present disclosure (e.g., Figures 14B to 14E ) is less than the amount of change in the amplitude of the experimental example (e.g., Figure 14A ). Therefore, a sound with stable flatness can be generated. Thus, when the first support member 500 is coupled or connected to the vibration device 800 by using the fifth hole 590 and a screw (or bolt), the vibration efficiency of the display panel can be improved more highly and the sound flatness can be enhanced compared to when the first support member 500 is not coupled to the vibration device 800.

[0515] Referring to Figure 14B and Figure 14C , the first support members 500b and 500c of the first embodiment (e.g., Figure 14B ) and the second embodiment (e.g., Figure 14C ) of the present disclosure may include the same number of fifth holes 590b and 590c. In addition, the fifth hole 590b formed in the first support member 500b of the first embodiment (e.g., Figure 14B ) of the present disclosure may be more concentrated at the center of the first support member 500b than the fifth hole 590c formed in the first support member 500c of the second embodiment (e.g., Figure 14C ) of the present disclosure. Referring to Figure 15 , it can be seen that the peak value of the amplitude of the first support member 500b measured in the display device including the first support member 500b according to the first embodiment (e.g., Figure 14B ) of the present disclosure is less than the peak value of the amplitude of the first support member 500c measured in the display device including the first support member 500c according to the second embodiment (e.g., Figure 14C ) of the present disclosure. For example, at frequencies of about 1,100 Hz to about 1,900 Hz, since the amplitude of the first support member 500b according to the first embodiment (e.g., Figure 14B ) of the present disclosure is less than the amplitude of the first support member 500c according to the second embodiment (e.g., Figure 14C ) of the present disclosure, the vibration efficiency in the display device including the first support member 500b according to the first embodiment (e.g., Figure 14B ) of the present disclosure is higher than the vibration efficiency in the display device including the first support member 500c according to the second embodiment (e.g., Figure 14C ) of the present disclosure.

[0516] Referring to Figure 14D and Figure 14E , the third embodiment of the present disclosure (e.g.,Figure 14D ) and the first support members 500d and 500e of the fourth embodiment of the present disclosure (e.g., Figure 14E ) may include the same number of fifth holes 590d and 590e. In addition, the fifth hole 590d formed at the first support member 500b of the third embodiment of the present disclosure (e.g., Figure 14D ) may be more concentrated at the center of the first support member 500d than the fifth hole 590e formed at the first support member 500e of the fourth embodiment of the present disclosure (e.g., Figure 14E ). Referring to Figure 15 , it can be seen that the peak value of the amplitude of the first support member 500c measured in the display device including the first support member 500d according to the third embodiment of the present disclosure (e.g., Figure 14D ) is smaller than the peak value of the amplitude of the first support member 500d measured in the display device including the first support member 500e according to the fourth embodiment of the present disclosure (e.g., Figure 14E ). For example, at a frequency of about 1,100 Hz to about 2,000 Hz, since the amplitude of the first support member 500d according to the third embodiment of the present disclosure (e.g., Figure 14D ) is smaller than the amplitude of the first support member 500e according to the fourth embodiment of the present disclosure (e.g., Figure 14E ), the vibration efficiency in the display device including the first support member 500d according to the third embodiment of the present disclosure (e.g., Figure 14C ) is higher than the vibration efficiency in the display device including the first support member 500e according to the fourth embodiment of the present disclosure (e.g., Figure 14E ).

[0517] Therefore, although the same number of fifth holes 590 and screws (or bolts) can be used to couple or connect the first support member 500 to the vibration device 800, when the same number of fifth holes 590 and screws (or bolts) are used to couple or connect the first support member 500 to the vibration device 800 in a region adjacent to the vibration device 800, the coupling force between the first support member 500 and the vibration device 800 can be greater than when the fifth holes 590 and screws (or bolts) are used to couple or connect the first support member 500 to the vibration device 800 in a region relatively far from the vibration device 800. Therefore, the amount of energy consumed in the first support member 500 can be reduced, thereby enhancing the vibration efficiency of the display panel and improving the sound flatness.

[0518] Referring to Figures 14B to 14E , formed in the third embodiment of the present disclosure (e.g., Figure 14D ) and the fourth embodiment of the present disclosure (e.g., Figure 14E) The number of the fifth holes 590d and 590e at the first support members 500d and 500e can be greater than the number of the fifth holes 590b and 590c at the first support members 500b and 500c formed in the first embodiment of the present disclosure (e.g., Figure 14B ) and the second embodiment of the present disclosure (e.g., Figure 14C ). Referring to Figure 15 , it can be seen that the peak value of the amplitude of each of the first support members 500d and 500e measured in the display device including the first support members 500d and 500e according to the third embodiment of the present disclosure (e.g., Figure 14D ) and the fourth embodiment of the present disclosure (e.g., Figure 14E ) is less than the peak value of the amplitude of each of the first support members 500b and 500c measured in the display device including the first support members 500b and 500c according to the first embodiment of the present disclosure (e.g., Figure 14B ) and the second embodiment of the present disclosure (e.g., Figure 14C ).

[0519] According to an embodiment of the present disclosure, at a frequency of about 1,100 Hz to about 2,100 Hz, because the amplitude of each of the first support members 500d and 500e according to the third embodiment of the present disclosure (e.g., Figure 14D ) and the fourth embodiment of the present disclosure (e.g., Figure 14E ) is less than the amplitude of each of the first support members 500b and 500c according to the first embodiment of the present disclosure (e.g., Figure 14B ) and the second embodiment of the present disclosure (e.g., Figure 14C ), the vibration efficiency in the display device including the first support members 500d and 500e according to the third embodiment of the present disclosure (e.g., Figure 14D ) and the fourth embodiment of the present disclosure (e.g., Figure 14E ) is higher than the vibration efficiency in the display device including the first support members 500b and 500c according to the first embodiment of the present disclosure (e.g., Figure 14B ) and the second embodiment of the present disclosure (e.g., Figure 14C ).

[0520] Therefore, when the first support member 500 is coupled to the vibration device 800 using relatively more of the fifth holes 590 and screws (or bolts), the coupling force between the first support member 500 and the vibration device 800 can be increased more compared to when the first support member 500 is coupled or connected to the vibration device 800 using relatively fewer of the fifth holes 590 and screws (or bolts). Therefore, the amount of energy consumed by the first support member 500 can be reduced, thereby improving the vibration efficiency of the display panel and improving the sound flatness.

[0521] Figure 16 is a graph showing the sound pressure level characteristics of a display device according to an embodiment of the present disclosure. Figure 17 is a graph showing the total harmonic distortion characteristics of a display device according to an embodiment of the present disclosure.

[0522] In Figure 16 , the horizontal axis represents frequency (Hz), and the vertical axis represents sound pressure level (shown in decibels (dB)). In Figure 17 , the horizontal axis represents frequency (Hz), and the vertical axis represents the total harmonic distortion (THD) rate (%).

[0523] In Figure 16 and Figure 17 In each of, the first embodiment of the present disclosure shown by a solid line is the result measured in a display device including a pair of vibration devices separated by a distance of 60 mm, and the second embodiment of the present disclosure shown by a dotted line is the result measured in a display device including a pair of vibration devices separated by a distance of 17.8 mm.

[0524] According to an embodiment of the present disclosure, when the PCB 330 of the driving circuit 300 is not disposed between the display panel 200 and the first support member 500, the arrangement of the vibration device 800 can be not affected by the PCB 330. Therefore, the degree of freedom in arranging the vibration device 800 can be improved. Therefore, as in the first embodiment of the present disclosure, a pair of vibration devices can be separated by a distance of 60 mm, and as in the second embodiment of the present disclosure, a pair of vibration devices can be separated by a distance of 17.8 mm.

[0525] Referring to Figure 16 , it can be seen that the sound output from the display device according to an embodiment of the present disclosure is output at a sound pressure level of 65 dB or greater in the reproduction tone vocal band of 100 Hz to 20 kHz. For example, the sound is output at a sound pressure level of 79 dB or greater in the reproduction tone vocal band of 200 Hz to 20 kHz. Therefore, even without a separate speaker, the display device according to an embodiment of the present disclosure can output sound having a frequency band of 100 Hz to 20 kHz based on the vibration of the display panel 200. In addition, it can be seen that the sound output from the display device according to an embodiment of the present disclosure has a stable sound flatness in the frequency band of 1 kHz to 20 kHz. The sound flatness can be the amplitude of the deviation between the highest sound pressure level and the lowest sound pressure level.

[0526] Referring to Figure 17, a display device according to an embodiment of the present disclosure may have a low THD rate of 20% or less in a reproduction tone vocal band of 100 Hz to 10 kHz, and may not have a period in which the THD rate rapidly increases. Therefore, high-quality sound can be output.

[0527] Figure 18 The rear surface of a display device according to another embodiment of the present disclosure is shown. Figure 19 is Figure 18 an exploded perspective view of the display device shown in Figure 20 is a cross-sectional view taken along line IV-IV' shown in Figure 18 Figure 21 is a cross-sectional view taken along line V-V' shown in Figure 18 Figure 22 is Figure 19 a front perspective view of the support frame shown in

[0528] Referring to Figures 18 to 22 , a display device according to another embodiment of the present disclosure can be implemented by modifying the support frame 400 and the first support member 500 in the display device shown in Figures 1 to 5 , modifying the second support member 600 and the fifth connection member 1000 into a ninth connection member (for example, a guiding connection member) 1300, and applying the third support member 700 configured with the (3-1) support member 710 and the (3-2) support member 720 shown in Figure 8B to the third support member 700. Compared with the display device according to the embodiment of the present disclosure, the display device according to another embodiment of the present disclosure can include fewer elements and a simpler configuration. Therefore, the product price and the product assembly and / or production time of the embodiment can be reduced. In the following description, the repeated description of the same elements except for the modified elements and the elements related thereto will be briefly given or omitted.

[0529] A display device according to another embodiment of the present disclosure can be configured to enhance the stiffness of the first support member 500' by using the structure (for example, area and shape) of the support frame 400' and the first support member 500', and absorb the undesired vibration of the vibration device 800, thereby reducing or preventing the occurrence of noise caused by the connection between elements.

[0530] ​​In a display device according to another embodiment of the present disclosure, the support frame 400' may be disposed at the rear surface of the display panel 200. For example, when the heat dissipation member 900 is disposed at the rear surface of the display panel 200, the support frame 400' may be disposed at the rear surface of the heat dissipation member 900. The support frame 400' may provide an accommodation or storage space or an air gap AG for the vibration device 800 between the rear surface of the display panel 200 and the support frame 400'. For example, the support frame 400' may be adjusted by the interval between the front member 100 and the first support member 500'.

[0531] According to another embodiment of the present disclosure, the support frame 400' may be disposed at the rear surface of the display panel 200 or the rear surface of the heat dissipation member 900 through the seventh connection member 400e. For example, the seventh connection member 400e may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but the embodiments of the present disclosure are not limited thereto. For example, the adhesive resin and the adhesive layer of the seventh connection member 400e may include an acrylic-based or polyurethane-based adhesive material, but the embodiments of the present disclosure are not limited thereto.

[0532] According to another embodiment of the present invention, the support frame 400' may be disposed between the first support member 500' and the display panel 200, supported by the first support member 500, and supported by the display panel 200. For example, a part of the support frame 400' may be disposed at the rear periphery of the first support member 500' and the vibration device 800, and may support the vibration device 800. For example, the support frame 400' may be a molded structure, which may be manufactured by a molding process using a material such as plastic, but the embodiments of the present disclosure are not limited thereto.

[0533] The support frame 400' according to an embodiment of the present disclosure may include a first surface 400a disposed at the first support member 500' and a second surface 400b vertically extending along the periphery of the first surface 400a. For example, the first surface 400a and the second surface 400b may be provided as an integral body or a single body, but the embodiments of the present disclosure are not limited thereto. For example, the first surface 400a may be a bottom surface or a lower surface, but the embodiments of the present disclosure are not limited thereto. For example, the second surface 400b may be a side wall or a side surface, but the embodiments of the present disclosure are not limited thereto.

[0534] As described above, the support frame 400' can be arranged to support the vibration device 800. Thus, the vibration device 800 can be supported by the support frame 400' and the first support member 500'. Accordingly, the support frame 400' can supplement the stiffness of the first support member 500' that supports the vibration device 800, and thus, the stiffness of the rear surface of the vibration device 800 can be enhanced more than when the vibration device 800 is supported only by the first support member 500'.

[0535] According to an embodiment of the present disclosure, the first surface 400a of the support frame 400' may have a flat shape, but the embodiments of the present disclosure are not limited thereto. For example, the perimeter of the first surface 400a may be arranged along the perimeter of the display panel 200. The first surface 400a according to an embodiment of the present disclosure may include support holes 400c (e.g., holes or grooves) into which the vibration device 800 may be inserted or received. For example, the support holes 400c may have a size and shape such that a part of the rear surface of the vibration device 800 can be inserted or received therein. For example, the first surface (e.g., perimeter portion or perimeter region) 400a near the support holes 400c may be arranged between the perimeter of the vibration device 800 and the first support member 500', and may support the rear perimeter of the vibration device 800. For example, the support holes 400c may be formed to correspond to the first holes 550 of the first support member 500'.

[0536] According to an embodiment of the present disclosure, the second surface 400b of the support frame 400' may be arranged along the perimeter of the first surface 400a. For example, the second surface 400b may be provided at the rear surface of the display panel 200 or the rear surface of the heat dissipation member 900 through the seventh connection member 400e. For example, the second surface 400b may surround the vibration device 800 and may provide a receiving or accommodating space or an air gap AG for the vibration device 800 between the rear surface of the display panel 200 and the support frame 400'.

[0537] Figures 23 to 25 Another example of a support frame according to an embodiment of the present disclosure is shown. Figures 23 to 25 Various arrangements of the reinforcement structure are shown, but the arrangements of the reinforcement structure are not limited thereto.

[0538] Refer to Figures 23 to 25, the support frame 400' according to an embodiment of the present disclosure may further include a reinforcing structure 400d having various shapes, which can enhance the stiffness of the support frame 400'. For example, the reinforcing structure 400d may be disposed between the rear surface of the display panel 200 and the first surface 400a. For example, the reinforcing structure 400d may protrude from the first surface 400a toward the rear surface of the display panel 200, or may be disposed at a surface (e.g., the front surface) of the first surface 400a facing the rear surface of the display panel 200.

[0539] According to an embodiment of the present disclosure, the thickness (e.g., height) of the reinforcing structure 400d may be the same as the thickness (e.g., height) of the second surface 400b. For example, the top surface of the reinforcing structure 400d may contact the rear surface of the display panel 200. According to an embodiment of the present disclosure, the thickness of the reinforcing structure 400d may be different from the thickness of the second surface 400b. For example, the thickness of the reinforcing structure 400d may be less than the thickness of the second surface 400b.

[0540] The reinforcing structure 400d according to an embodiment of the present disclosure may include at least one or more reinforcing members. For example, the reinforcing member may have a rod shape. For example, the at least one reinforcing member may be disposed in various shapes.

[0541] Referring to Figure 23 , the reinforcing structure 400d may include a reinforcing member (e.g., the first reinforcing member) 400d_1 disposed on its first surface 400a. For example, the reinforcing member 400d_1 may connect two different second surfaces 400b. For example, the reinforcing member 400d_1 may be disposed at the first surface 400a to be adjacent to a corner (for the connection point between the second surfaces 400b) formed at the first surface 400a, and may connect two different second surfaces 400b constituting the corner (e.g., the connection point).

[0542] Referring to Figure 24 , the reinforcing structure 400d may include a first reinforcing member 400d_1 and a second reinforcing member 400d_2 that may be disposed at the first surface 400a. For example, the first reinforcing member 400d_1 may connect two different second surfaces 400b. For example, the second reinforcing member 400d_2 may connect the first reinforcing member 400d_1 to the second surface 400b.

[0543] Referring to Figure 25, the reinforcing structure 400d may further include a third reinforcing member 400d_3 disposed at the first surface 400a. For example, the third reinforcing member 400d_3 may connect two different first reinforcing members 400d_1. For example, the reinforcing structure 400d may further include a fourth reinforcing member 400d_4 disposed at the first surface 400a. For example, the fourth reinforcing member 400d_4 may connect two different second reinforcing members 400d_2. For example, the reinforcing structure 400d may further include a fifth reinforcing member 400d_5 that may connect the first reinforcing member 400d_1 to the second reinforcing member 400d_2 and may be disposed at the first surface 400a.

[0544] Figure 26 is Figure 19 a front perspective view of the first support member shown in

[0545] Referring to Figures 18 to 21 and Figure 26 , according to another embodiment of the present disclosure, a first support member (or support member) 500' may be disposed at the rear surface of the front member 100. For example, the first support member 500' may be disposed at the rear surface of the display panel 200. For example, the first support member 500' may be disposed at the rear surface of the support frame 400'. For example, the first support member 500' may support or accommodate (e.g., house) the vibration device 800. For example, the first support member 500' may surround the side surface (e.g., lateral surface) of the display panel 200. For example, the first support member 500' may surround the side surface (e.g., lateral surface) of the support frame 400'.

[0546] According to another embodiment of the present disclosure, the first support member 500' may be disposed at the rear surface of the front member 100 through an eighth connection member 503. For example, the eighth connection member 503 may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but the embodiments of the present disclosure are not limited thereto. For example, the adhesive resin and the adhesive layer of the eighth connection member 503 may include an acrylic-based or polyurethane-based adhesive material, but the embodiments of the present disclosure are not limited thereto.

[0547] Unlike the first support member 500 according to another embodiment of the present disclosure, the first support member 500' according to another embodiment of the present disclosure may not include a forming portion. A display device according to another embodiment of the present disclosure may include a support frame 400' configured to support a vibration device 800. Accordingly, the stiffness of the first support member 500' associated with the support of the vibration device 800 may be enhanced. Thus, although the first support member 500' does not include a forming portion, the vibration device 800 may be stably supported. As described above, since the first support member 500' does not include a forming portion, the thickness of the display device may be reduced.

[0548] The first support member 500' according to another embodiment of the present disclosure may include a bottom plate (e.g., a lower plate) 501 and side portions 502, but embodiments of the present disclosure are not limited thereto. For example, the bottom plate 501 and the side portions 502 may be provided as one body or a single body, but embodiments of the present disclosure are not limited thereto.

[0549] The bottom plate 501 of the first support member 500' according to another embodiment of the present disclosure may be an element corresponding to the (1-1) plate 510 of the first support member 500 according to an embodiment of the present disclosure. Accordingly, a detailed description thereof will be briefly given below or the detailed description thereof will be omitted.

[0550] The bottom plate 501 of the first support member 500' may be disposed at the rear surface of the display panel 200 and may support the vibration device 800. For example, the bottom plate 501 may constitute a base of the first support member 500' and may have a plate shape. For example, the bottom plate 501 may have the same shape as the front member 100. For example, the perimeter of the bottom plate 501 may be disposed along the perimeter of the front member 100. For example, the support frame 400' may be disposed at the bottom plate 501 of the first support member 500'.

[0551] The side portions 502 of the first support member 500' may be disposed along the perimeter of the bottom plate 501. For example, the side portions 502 may extend from the perimeter of the bottom plate 501 toward the front member 100 and may be disposed at the rear surface of the front member 100. For example, the side portions 502 may be disposed along the rear perimeter of the front member 100. For example, the side portions 502 may be disposed at the rear surface of the front member 100 through an eighth connection member 503. For example, the side portions 502 may surround a side surface (e.g., a lateral surface) of the display panel 200. For example, the side portions 502 may surround a second surface 400b of the support frame 400'.

[0552] The first support member 500' according to another embodiment of the present disclosure may include a side portion 502, where one side (e.g., a part) of the side portion 502 is open, and may include a three-surface support structure that supports three of the four perimeters (e.g., the upper perimeter, the lower perimeter, the left perimeter, and the right perimeter) of the front support member 100. For example, the side portion 502 may not be provided at the first perimeter portion (e.g., one perimeter portion) of the bottom plate 501. Here, the first perimeter portion of the bottom plate 501 may correspond to the first perimeter portion of the display panel 200.

[0553] As described above, the side portion 502 of the first support member 500' may include an opening area. Thus, the flexible circuit film 310 of the driving circuit 300 may extend to the rear surface of the first support member 500' through the opening area, and the PCB 330 connected to the flexible circuit film 310 may be provided at the first rear perimeter of the first support member 500'.

[0554] In a display device according to another embodiment of the present disclosure, the third support member (e.g., a substrate connection member) 700 may include a (3-1) support member 710 and a (3-2) support member 720. For example, the (3-1) support member 710 and the (3-2) support member 720 may be provided as an integral or single body, but the embodiments of the present disclosure are not limited thereto.

[0555] According to an embodiment of the present disclosure, the (3-1) support member 710 may be provided between the bottom plate 501 of the first support member 500 and the PCB 330. For example, when the flexible circuit film 310 is provided at the rear surface of the bottom plate 330, the (3-1) support member 710 may be provided between the bottom plate 501 and the flexible circuit film 310 provided at the rear surface of the bottom plate 501.

[0556] According to another embodiment of the present disclosure, the (3-2) support member 720 may extend from the (3-1) support member 710 toward the rear surface of the display panel 200. For example, the (3-2) support member 720 may extend along a side surface (e.g., an outer surface) exposed outside the second surface 400b of the support frame 400'. For example, the (3-2) support member 720 may be provided between the second surface 400b of the support frame 400' and the flexible circuit film 310, and the flexible circuit film 310 extends through the opening area of the side portion 502 of the first support member 500' along the outer surface of the second surface 400b.

[0557] In a display device according to another embodiment of the present disclosure, the support frame 400' may be disposed between the first support member 500' and the rear surface of the vibration device 800. Accordingly, the support device 1100 may be disposed between the support frame 400' and the rear surface of the vibration device 800. For example, the support device 1100 may be disposed between the first surface 400a of the support frame 400' and the rear surface of the vibration device 800.

[0558] A ninth connecting member 1300 according to another embodiment of the present disclosure may be disposed between the support frame 400' and the first support member 500'. For example, the ninth connecting member 1300 may have a flat shape, but embodiments of the present disclosure are not limited thereto. The ninth connecting member 1300 may include a receiving hole 1310 into which the vibration device may be inserted or received. For example, the receiving hole 1310 may have a size and shape such that a part of the rear surface of the vibration device 800 can be inserted or received therein. For example, the receiving hole 1310 may be formed to correspond to the support hole 400c of the support frame 400'.

[0559] A display device according to another embodiment of the present disclosure may include a structure in which the first support member 500', the ninth connecting member 1300, and the support frame 400' are sequentially stacked. The stacked structure of the first support member 500', the ninth connecting member 1300, and the support frame 400' may reduce or prevent the transmission of unwanted vibrations and may implement a damping structure. For example, unwanted vibration transmission to the display device may be reduced or prevented by changing the physical properties of the ninth connecting member 1300. For example, unwanted vibration transmission to the display device may be prevented by changing the thickness of the ninth connecting member 1300. For example, unwanted vibration transmission to the display device may be reduced or prevented by changing the contact area between the ninth connecting member 1300 and the support frame 400'.

[0560] Figure 27 is a graph showing the THD characteristics of a display device according to an embodiment of the present disclosure. In Figure 17 the horizontal axis represents frequency (Hz), and the vertical axis represents the THD rate (%).

[0561] Referring to Figure 27 , a display device according to another embodiment of the present disclosure may have a low THD rate of 25% or less in a reproduction tone vocal band of 100 Hz to 10 kHz. Accordingly, the sound pressure level characteristics of the low tone vocal band may enhance the sound pressure level characteristics and may not have a period in which the THD rate rapidly increases. Accordingly, high-quality sound may be output.

[0562] Figure 28 and Figure 29is a graph showing the sound pressure level characteristics of a display device according to another embodiment of the present disclosure. In Figure 28 and Figure 29 , the horizontal axis represents frequency (Hz), and the vertical axis represents sound pressure level (dB).

[0563] Figure 28 is a graph showing the sound pressure level characteristics of the physical properties of the ninth connection member 1300 of a display device according to another embodiment of the present disclosure.

[0564] In Figure 28 , the solid line represents the result measured in a display device including the ninth connection member 1300 having "A" physical properties, the single dotted line represents the result measured in a display device including the ninth connection member 1300 having "B" physical properties, and the dotted line represents the result measured in a display device including the ninth connection member 1300 having "C" physical properties.

[0565] Referring to Figure 28 , it can be seen that the sound pressure level characteristics measured in display devices respectively including the ninth connection member 1300 having different physical properties are different.

[0566] Figure 29 is a graph showing the sound pressure level characteristics of the thickness of the ninth connection member 1300 of a display device according to another embodiment of the present disclosure.

[0567] In Figure 29 , the solid line represents the result measured in a display device including the ninth connection member 1300 having B physical properties and a thickness of 1.2 mm, the single dotted line represents the result measured in a display device including the ninth connection member 1300 having B physical properties and a thickness of 1.0 mm, and the dotted line represents the result measured in a display device including the ninth connection member 1300 having B physical properties and a thickness of 0.5 mm.

[0568] Referring to Figure 29 , it can be seen that the sound pressure level characteristics measured in display devices respectively including the ninth connection member 1300 having the same physical properties and different thicknesses are different.

[0569] Referring to Figure 28 and Figure 29 , it can be seen that the display device according to another embodiment of the present invention outputs sounds having different sound pressure level characteristics based on the physical properties and thickness of the ninth connection member 1300. Therefore, the damping effect can be adjusted by changing the physical properties and thickness of the ninth connection member 1300.

[0570] Figure 30is a cross-sectional view taken along line II-II' shown in Figure 2 in a display device according to another embodiment of the present disclosure.

[0571] A display device according to another embodiment of the present disclosure can be implemented by adding a rear cover 1400 to a display device according to an embodiment of the present disclosure. Therefore, hereinafter, duplicate descriptions of the same elements other than the rear cover 1400 and elements related thereto will be briefly given or omitted.

[0572] Referring to Figure 30 , a display device according to another embodiment of the present disclosure may further include a rear cover 1400.

[0573] The rear cover 1400 may accommodate or house a display panel 200, a driving circuit 300, and a first support member 500 in which a first vibration device 800 is disposed. For example, the rear cover 1400 may protect the first vibration device 800 exposed at the rear surface of the first support member 500 and the driving circuit 300 disposed at the rear surface of the first support member 500. For example, the rear cover 1400 may include a first cover 1410 and a second cover 1420, but embodiments of the present disclosure are not limited thereto. For example, the first cover 1410 and the second cover 1420 may be provided as an integral or single body, but embodiments of the present disclosure are not limited thereto.

[0574] The first cover 1410 of the rear cover 1400 may be the outermost rear element disposed at the rear surface of the display device. For example, the first cover 1410 may support the first support member 500 and may be disposed at the rear surface of the first support member 500.

[0575] According to another embodiment of the present disclosure, the first cover 1410 may cover the rear surface of the first support member 500. For example, the first cover 1410 may cover the entire rear surface of the first support member 500. For example, the first cover 1410 may cover the first vibration device 800 exposed at the rear surface of the first support member 500. For example, the first cover 1410 may cover the rear surface of the first vibration device 800 exposed at the rear surface of the first support member 500. For example, the first cover 1410 may cover the side surface of the first vibration device 800 exposed at the rear surface of the first support member 500.

[0576] According to another embodiment of the present disclosure, the first cover 1410 may cover the exposed driving circuit 300. For example, the first cover 1410 may cover a PCB 330 disposed at the rear surface of the first support member 500. For example, the first cover 1410 may cover a flexible circuit film 310 disposed at the rear surface of the first support member 500.

[0577] The second cover 1420 of the rear cover 1400 may be the outermost element disposed at the side surface of the display device and may be disposed at the periphery of the first cover 1410. For example, the second cover 1420 may be disposed along the entire periphery of the first cover 1410.

[0578] According to another embodiment of the present disclosure, the second cover 1420 may cover the side surface of the first vibration device 800 that is exposed at the rear surface of the first support member 500. For example, the second cover 1420 may cover the side surface of the first support member 500. For example, the second cover 1420 may cover the side surface of the support frame 400. For example, the second cover 1420 may cover the side surface of the front member 100.

[0579] In Figure 30 , the second cover 1420 is shown as a structure covering the side surface of the front member 100, but the embodiments of the present disclosure are not limited thereto. For example, the second cover 1420 may be disposed at the rear surface of the front member 100 and may be adjacent to the support frame 400. The second cover 1420 may be disposed at the rear surface of the front member 100 through an adhesive member including an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but the embodiments are not limited thereto.

[0580] The display device according to another embodiment of the present disclosure may further include a support structure 1500 disposed between the rear cover 1400 and the first support member 500.

[0581] According to another embodiment of the present disclosure, the support structure 1500 may be disposed between the rear surface of the first support member 500 and the front surface of the rear cover 1400, and the first support member 500 may be supported by the rear cover 1400 through the support structure 1500. For example, the support structure 1500 may maintain the interval between the first support member 500 and the rear cover 1400 and may allow the portion of the first vibration device 800 that is exposed at the rear surface of the first support member 500 not to contact the rear cover 1400, thereby reducing or preventing the rear cover 1400 from being shaken by the vibration of the first vibration device 800.

[0582] According to another embodiment of the present disclosure, the support structure 1500 may cover the side surface of the first vibration device 800 that is exposed at the rear surface of the first support member 500. For example, the support structure 1500 may cover a part of the side surface of the first vibration device 800 that is exposed at the rear surface of the first support member 500. For example, the support structure 1500 may cover the entire side surface of the first vibration device 800 that is exposed at the rear surface of the first support member 500.

[0583] According to another embodiment of the present disclosure, the support structure 1500 may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but the embodiments of the present disclosure are not limited thereto. According to another embodiment of the present disclosure, the adhesive resin and the adhesive layer of the support structure 1500 may include an acrylic-based or polyurethane-based adhesive material, but the embodiments of the present disclosure are not limited thereto. For example, the adhesive resin and the adhesive layer of the support structure 1500 may include a polyurethane-based adhesive material having relatively ductile characteristics, rather than an acrylic-based adhesive material having relatively high hardness characteristics, to reduce, prevent, or minimize the vibration transmission of the first vibration device 800 to the rear cover 1400, but the embodiments of the present disclosure are not limited thereto.

[0584] Figure 31 is a cross-sectional view taken along the line V-V' shown Figure 18 in the display device according to another embodiment of the present disclosure.

[0585] Referring to Figure 31 , the display device according to another embodiment of the present disclosure can be implemented by adding the rear cover 1400' to the display device according to another embodiment of the present disclosure. Therefore, hereinafter, repeated descriptions of the same elements other than the rear cover 1400' and the elements related thereto will be briefly given or omitted.

[0586] The display device according to another embodiment of the present disclosure may further include a rear cover 1400'.

[0587] The rear cover 1400' may be disposed at the rear surface of the first support member 500' and may cover the rear surface of the first support member 500'. According to an embodiment of the present disclosure, the rear cover 1400' may cover the entire area or a partial area of the first support member 500'. For example, the rear cover 1400' may cover the exposed portion of the first support member 500' of the first vibration device 800. For example, the rear cover 1400' may cover the exposed drive circuit 300. For example, the rear cover 1400' may cover the PCB 330 disposed at the rear surface of the first support member 500. For example, the rear cover 1400' may cover the flexible circuit film 310 exposed through the opening area of the first support member 500'.

[0588] According to another embodiment of the present disclosure, the rear cover 1400' may include a first cover 1410, a second cover 1420, and a third cover 1430, but the embodiments of the present disclosure are not limited thereto. For example, the first cover 1410, the second cover 1420, and the third cover 1430 may be provided as an integral body or a single body, but the embodiments of the present disclosure are not limited thereto.

[0589] The first cover 1410 of the rear cover 1400' may be disposed at the rear surface of the first support member 500'. For example, the first cover 1410 may have a plate shape, but embodiments of the present disclosure are not limited thereto. For example, the first cover 1410 may cover the first vibration device 800 exposed at the rear surface of the first support member 500'. For example, the first cover 1410 may cover the rear surface of the first vibration device 800 exposed at the rear surface of the first support member 500'.

[0590] According to another embodiment of the present disclosure, the first cover 1410 may cover the exposed drive circuit 300. For example, the first cover 1410 may cover the PCB 330 disposed at the rear surface of the first support member 500'. For example, the first cover 1410 may cover the flexible circuit film 310 disposed at the rear surface of the first support member 500'.

[0591] The second cover 1420 of the rear cover 1400' may be disposed at the periphery of the first cover 1410. For example, the second cover 1420 may be disposed at one periphery of the first cover 1410 and may cover the opening area of the first support member 500'.

[0592] According to another embodiment of the present disclosure, the second cover 1420 may cover the side surface of the support frame and the side surface of the display panel 200 exposed through the opening area of the first support member 500'. For example, the second cover 1420 may cover the flexible circuit film 310 disposed along the opening area of the first support member 500'. For example, the second cover 1420 may cover the side surface of the first vibration device 800 exposed through the rear surface of the first support member 500'. For example, the second cover 1420 may cover the side surface of the front member 100.

[0593] The third cover 1430 of the rear cover 1400' may be disposed at one periphery of the first cover 1410. For example, the third cover 1430 may be disposed at the other periphery of the first cover 1410 that may be opposite to one periphery. For example, the third cover 1430 may be disposed at the rear surface of the first support member 500'.

[0594] According to another embodiment of the present disclosure, the third cover 1430 may cover the side surface of the first vibration device 800 exposed at the rear surface of the first support member 500'. For example, the third cover 1430 may be disposed at the rear surface of the first support member 500' through an adhesive member. For example, the adhesive member may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but embodiments of the present disclosure are not limited thereto. For example, the adhesive resin and the adhesive layer of the adhesive member may include an acrylic-based or polyurethane-based adhesive material, but embodiments of the present disclosure are not limited thereto.

[0595] InFigure 31 In [description], the second cover 1420 is shown as a structure covering the side surface of the front member 100, but embodiments of the present disclosure are not limited thereto. For example, the second cover 1420 may be provided at the rear surface of the front member 100. In this case, the second cover 1420 may be provided at the rear surface of the front member 100 by an adhesive member including an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but the embodiments are not limited thereto.

[0596] In Figure 31 In [description], the third cover 1430 is shown as a structure provided at the rear surface of the first support member 500', but embodiments of the present disclosure are not limited thereto. For example, the third cover 1430 may cover the side surface of the front member 100, such as Figure 30 the left region of the second cover 1420 as shown in [figure]. For example, the third cover 1430 may be provided at the rear surface of the front member 100 to be adjacent to the side portion 502 of the first support member 500'. In this case, the third cover 1430 may be provided at the rear surface of the front member 100 by an adhesive member including an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but the embodiments are not limited thereto.

[0597] A display device according to another embodiment of the present disclosure may further include a support structure 1500 that may be provided between the rear cover 1400' and the first support member 500'.

[0598] According to another embodiment of the present disclosure, the support structure 1500 may be provided between the rear surface of the first support member 500' and the front surface of the rear cover 1400', and the first support member 500' may be supported by the rear cover 1400' through the support structure 1500. For example, the support structure 1500 may maintain the interval between the first support member 500' and the rear cover 1400', and may allow a portion of the first vibration device 800 exposed at the rear surface of the first support member 500' not to contact the rear cover 1400', thereby preventing the rear cover 1400' from being shaken by the vibration of the first vibration device 800.

[0599] According to another embodiment of the present disclosure, the support structure 1500 may cover the side surface of the first vibration device 800 exposed at the rear surface of the first support member 500'. For example, the support structure 1500 may cover a part of the side surface of the first vibration device 800 exposed at the rear surface of the first support member 500'. For example, the support structure 1500 may cover the entire side surface of the first vibration device 800 exposed at the rear surface of the first support member 500'.

[0600] According to another embodiment of the present disclosure, the support structure 1500 may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but the embodiments of the present disclosure are not limited thereto. According to another embodiment of the present disclosure, the adhesive resin and the adhesive layer of the support structure 1500 may include an acrylic-based or polyurethane-based adhesive material, but the embodiments of the present disclosure are not limited thereto. For example, the adhesive resin and the adhesive layer of the support structure 1500 may include a polyurethane-based adhesive material having relatively ductile characteristics instead of an acrylic-based adhesive material having relatively high hardness characteristics, for reducing, preventing, or minimizing the vibration transmission of the first vibration device 800 to the rear cover 1400, but the embodiments of the present disclosure are not limited thereto.

[0601] The display device according to an embodiment of the present disclosure described above with reference to Figures 1 to 31 may be mounted on a vehicle. For example, the display device according to an embodiment of the present disclosure may be mounted at a vehicle structure. For example, the vehicle structure may include an instrument panel, an instrument panel device, a seat panel, a door, and the like.

[0602] According to another embodiment of the present disclosure, when the display device according to an embodiment of the present disclosure described above with reference to Figures 1 to 29 is assembled on a vehicle, all the display devices may be inserted (e.g., received) into the vehicle structure.

[0603] According to another embodiment of the present disclosure, when the display device according to an embodiment of the present disclosure described above with reference to Figure 30 is assembled on a vehicle, all the display devices may be inserted (e.g., received) into the vehicle structure, or Figure 30 the "A" area of the rear cover 1400 in

[0604] According to another embodiment of the present disclosure, when the display device according to an embodiment of the present disclosure described above with reference to Figure 31 is assembled on a vehicle, all the display devices may be inserted (or received) into the vehicle structure, or Figure 31 the "B" area of the rear cover 1400' in

[0605] Figure 32 shows a vehicle according to an embodiment of the present disclosure.

[0606] Figure 32 The vehicle of Figures 1 to 31 may include one or more display devices according to an embodiment of the present disclosure described in any one or more of the embodiments above with reference to

[0607] Referring to Figure 32, a vehicle according to an embodiment of the present disclosure may include a dashboard DB, an instrument panel device IPM (as an example of an instrument panel device), and an infotainment device ITM.

[0608] The dashboard DB may include a first area DA facing the driver's seat, a second area PA facing the passenger's seat, and a third area MA between the first area DA and the second area PA.

[0609] The instrument panel device IPM may include a first display DIS1, which may be disposed at the first area DA of the dashboard DB.

[0610] The first display DIS1 may provide various information such as vehicle status information and driving-related information such as driving time, speed, fuel quantity, and revolutions per minute (RPM) of the vehicle to the driver.

[0611] The first display DIS1 may include Figures 1 to 31 the display device shown in any one or more of the embodiments of, so its repeated description is omitted. Therefore, the first display DIS1 may display an image corresponding to the vehicle driving information provided from the vehicle host system on the display panel. In addition, the first display DIS1 may output, based on the sound drive signal provided from the vehicle host system, a sound generated by the vibration of the display panel in response to the vibration of the vibration device to the driver's seat.

[0612] The infotainment device ITM (or infotainment system) may include a second display DIS2, which may be disposed at the third area MA of the dashboard DB.

[0613] The second display DIS2 may be connected to a navigation system and vehicle convenience systems, such as an audio system, an air conditioning system, and a multimedia system respectively equipped in the vehicle, and may display navigation information provided from the navigation system and control icons for controlling the corresponding vehicle convenience systems. In addition, the second display DIS2 may provide a sound corresponding to the sound signal provided from the audio system and / or the multimedia system to the driver or the passenger.

[0614] The second display DIS2 may include Figures 1 to 31 the display device shown in any one or more of the embodiments of, so its repeated description is omitted. Therefore, the second display DIS2 may display navigation information provided from the navigation system and control icons for controlling the corresponding vehicle convenience systems on the display panel. In addition, the second display DIS2 may directly output the sound generated from the display panel, which may vibrate based on the sound signal provided from the audio system and / or the multimedia system through the vibration of the vibration device. In addition, the second display DIS2 may sense a user touch, for example, through a touch electrode layer disposed at the display panel, to perform an interaction with the user.

[0615] The second display DIS2 may have a length in which a second area PA facing the dashboard DB is enlarged. For example, the second display DIS2 may be disposed at a third area MA and the second area PA of the dashboard DB.

[0616] Therefore, a vehicle according to an embodiment of the present disclosure may include an instrument panel device IPM, and the instrument panel device IPM includes a first display DIS1, Figures 1 to 31 The display device according to an embodiment of the present disclosure shown in any one or more of the embodiments may be applied to the first display DIS1. Thus, the instrument panel device IPM may output the sound generated by the vibration of the first display DIS1 to the face of the driver to directly transmit the sound to the ears of the driver, thereby transmitting a sound substantially similar to the original sound to the driver.

[0617] In addition, a vehicle according to an embodiment of the present disclosure may include an infotainment device ITM, and the infotainment device ITM includes a second display DIS2, Figures 1 to 31 The display device according to an embodiment of the present disclosure shown in any one or more of the embodiments may be applied to the second display DIS2. Thus, the infotainment device ITM may output the sound generated by the vibration of the second display DIS2 to the ears of the driver and / or the passengers, thereby transmitting a sound substantially similar to the original sound to the driver and / or the passengers.

[0618] In addition, a vehicle according to an embodiment of the present disclosure may use each of the first display DIS1 of the instrument panel device IPM and the second display DIS2 of the infotainment device ITM as a speaker for outputting sound, and may transmit the sound to the driver and / or the passengers using the sound generated by the vibration of each of the first display DIS1 and the second display DIS2. The sound may include two-channel sound.

[0619] Figure 33 A vehicle according to another embodiment of the present disclosure is shown.

[0620] Figure 33 Shown is Figure 32 An example in which the structure of the infotainment device shown is modified. Hereinafter, repeated descriptions of the same elements except for the infotainment device and related elements will be briefly given or omitted.

[0621] Refer to Figure 33, according to another embodiment of the present disclosure, the infotainment device ITM can be installed to be raised or lowered in the third area MA of the instrument panel DB. The infotainment device ITM can be received (e.g., stored) into the instrument panel DB based on the power-off of the vehicle or the manipulation of a passenger, and can protrude from the interior of the instrument panel DB based on the power-on of the vehicle or the manipulation of a passenger.

[0622] According to another embodiment of the present disclosure, the infotainment device ITM can include a second display DIS2 and a display lifting unit.

[0623] The second display DIS2 is Figure 32 substantially the same as the second display DIS2 shown, and thus its repeated description is omitted.

[0624] The display lifting unit (e.g., display lifting part) can be provided in the third area MA of the instrument panel DB, and can support the second display DIS2 to be raised or lowered. For example, the display lifting unit can also raise the second display DIS2 based on the power-on of the vehicle or the manipulation of a passenger, so that the second display DIS2 protrudes from the interior of the instrument panel DB. In addition, the display lifting unit can lower the second display DIS2 based on the power-off of the vehicle or the manipulation of a passenger to receive or store the second display DIS2 into the instrument panel DB.

[0625] Therefore, a vehicle according to another embodiment of the present disclosure can have the same effect as Figure 32 the vehicle shown.

[0626] Figure 34 A vehicle according to another embodiment of the present disclosure is shown.

[0627] Figure 34 Shown is Figure 33 an example in which the structure of the infotainment device shown is modified. Hereinafter, descriptions of the same elements except for the infotainment device and related components will be briefly given or omitted.

[0628] Referring to Figure 34 , according to an embodiment of the present disclosure, the infotainment device ITM can include a second display DIS2 that can be installed to be raised or lowered in the third area MA of the instrument panel DB, a display lifting unit that raises or lowers the second display DIS2, and a third display DIS3 that can be installed in the second area PA of the instrument panel DB.

[0629] The second display DIS2 and the display lifting unit are substantially the same as the second display and the display lifting unit respectively shown in Figure 33 and thus their repeated descriptions are omitted.

[0630] The third display DIS3 can share the functions of the second display DIS2.

[0631] According to another embodiment of the present disclosure, the third display DIS3 can be connected to a navigation system and vehicle convenience systems, such as an audio system, an air conditioning system, and a multimedia system each equipped inside a vehicle, and can display navigation information provided from the navigation system and control icons for controlling the corresponding vehicle convenience systems. In addition, the third display DIS3 can provide sounds corresponding to sound signals provided from the audio system and / or the multimedia system to passengers. Further, the third display DIS3 can transmit or receive image information or sound information, for example, through wireless communication with a wireless communication device of a passenger sitting on, for example, a passenger seat, and can display the received image information on a display panel.

[0632] The third display DIS3 can include Figures 1 to 31 a display device according to an embodiment of the present disclosure shown in any one or more of the

[0633] embodiments, and thus a repeated description thereof is omitted.

[0634] The first display DIS1 of the instrument panel device IPM and the second and third displays DIS2 and DIS3 of the infotainment device ITM can each function as a speaker for outputting sounds inside the vehicle.

[0635] Therefore, a vehicle according to another embodiment of the present disclosure can have the same effects as the Figure 32 or Figure 33[[ vehicles shown in the embodiments. In addition, a vehicle according to an embodiment of the present disclosure can use each of the first display DIS1 of the instrument panel device IPM and the second and third displays DIS2 and DIS3 of the infotainment device ITM as a speaker for outputting sounds. A vehicle according to an embodiment of the present disclosure can transmit sounds including three-channel sounds to a driver and / or a passenger using sounds generated by vibrations of each of the first display DIS1, the second display DIS2, and the third display DIS3.

[0636] ​ A vehicle according to another embodiment of the present disclosure is shown.

[0637] ​ Shown is ​An example in which the structure of the infotainment device shown is modified. Hereinafter, repeated descriptions of the same elements except for the infotainment device and related components will be briefly given or omitted.

[0638] Referring to ​ , the infotainment device ITM according to another embodiment of the present disclosure may further include a fourth display DIS4 provided at the rear surface of the driver's seat (e.g., driver seat cushion) DS and a fifth display DIS5 provided at the rear surface of the passenger seat (or passenger seat cushion) PS.

[0639] The fourth display DIS4 may be provided in or embedded in the headrest of the driver's seat DS, and the fifth display DIS5 may be provided in or embedded in the headrest of the passenger seat PS.

[0640] Each of the fourth display DIS4 and the fifth display DIS5 may include ​ a display device according to an embodiment of the present disclosure as shown in any one or more of the

[0641] embodiments, and thus its repeated description is omitted.

[0642] The first display DIS1 of the instrument panel device IPM and the second display DIS2, the fourth display DIS4, and the fifth display DIS5 of the infotainment device ITM may each function as a speaker for outputting sound inside the vehicle.

[0643] Therefore, a vehicle according to another embodiment of the present disclosure may have the same effect as the ​ vehicle shown. In addition, a vehicle according to an embodiment of the present disclosure may use the first display DIS1 of the instrument panel device IPM and each of the second display DIS2, the fourth display DIS4, and the fifth display DIS5 of the infotainment device ITM as speakers for outputting sound. A vehicle according to an embodiment of the present disclosure may transmit sound including four-channel sound to the driver and / or passengers using the sound generated by the vibration of each of the first display DIS1, the second display DIS2, the fourth display DIS4, and the fifth display DIS5.

[0644] In addition, in a vehicle according to another embodiment of the present disclosure, as​ As shown, the second display DIS2 of the infotainment device ITM can be installed in the third area MA of the dashboard DB to be raised or lowered. In addition, the infotainment device ITM can also include ​ the third display DIS3 as shown. In this case, the vehicle according to an embodiment of the present disclosure can use at least one or more of the first display DIS1 of the dashboard device IPM and the second to fifth displays DIS2 to DIS5 of the infotainment device ITM as speakers for outputting sound, and can transmit the sound generated by the vibration of the display panel included in at least one or more of the first to fifth displays DIS1 to DIS5 to the driver and / or passengers.

[0645] Referring to the above ​ The display device according to an embodiment of the present disclosure can output sound (DVS) or generate tactile feedback (e.g., tactile vibration) in response to a user touch. The display device according to an embodiment of the present disclosure can generate sound (DVS) and tactile feedback simultaneously.

[0646] The above display device according to an embodiment of the present disclosure can include two coil-type vibration devices 810 and 830 and two film-type vibration devices 1210 and 1230, and the number of vibration devices included in the display device is not limited thereto.

[0647] ​ Shows the arrangement of vibration devices in the display device according to an embodiment of the present disclosure.

[0648] Referring to ​ , in the display device according to an embodiment of the present disclosure, the first vibration device 800 can include a first vibration device 810 and a second vibration device 830, and the second vibration device 1200 can include a third vibration device 1210 and a fourth vibration device 1230. According to an embodiment of the present disclosure, each of the first vibration device 810 and the second vibration device 830 can be a coil-type vibration device, and each of the third vibration device 1210 and the fourth vibration device 1230 can be a film-type vibration device.

[0649] According to an embodiment of the present disclosure, the display device can include 2m (where m is a natural number) coil-type vibration devices and 2n (where n is a natural number) film-type vibration devices. For example, when m is equal to n, the number of coil-type vibration devices can be equal to the number of film-type vibration devices. For example, when m is different from n, the number of coil-type vibration devices can be different from the number of film-type vibration devices. In this case, the 2m coil-type vibration devices and the 2n film-type vibration devices can be arranged symmetrically with respect to the center line CL of the display panel 200.

[0650] According to an embodiment of the present disclosure, with respect to the first direction X (e.g., the width direction) of the display panel 200, the display panel 200 may include a left region LHP and a right region RHP with respect to the center line CL. The display panel 200 may include a central portion CP and a peripheral portion EP. For example, the display panel 200 may be divided into a central portion CP and two peripheral portions EP1 and EP2, and the peripheral portions EP1 and EP2 may be parallel to each other, and the central portion CP is located between the peripheral portions EP1 and EP2.

[0651] The central portion CP of the display panel 200 may be divided into a first central portion C1 and a second central portion C2. For example, the first central portion C1 may be the left portion (e.g., the left central portion) of the central portion CP, and the second central portion C2 may be the right portion (e.g., the right central portion) of the central portion CP. With respect to the first direction X (e.g., the width direction) of the display panel 200, the first central portion C1 and the second central portion C2 may be symmetric about the center line CL of the display panel 200.

[0652] The peripheral portion EP of the display panel 200 may be divided into a first peripheral portion EP1 and a second peripheral portion EP2. For example, the first peripheral portion EP1 may be the left portion (e.g., the left peripheral portion) of the peripheral portion EP, and the second peripheral portion EP2 may be the right portion (e.g., the right peripheral portion) of the peripheral portion EP. With respect to the first direction X (e.g., the width direction) of the display panel 200, the first peripheral portion EP1 and the second peripheral portion EP2 may be symmetric about the center line CL of the display panel 200.

[0653] According to an embodiment of the present disclosure, m first vibration devices 810 (e.g., the first m number of vibration devices or the first m vibration devices) (or LE) among the 2m coil-type vibration devices may be disposed at the first central portion CP11 of the display panel 200, and the other m second vibration devices 830 (e.g., the second m number of vibration devices or the second m vibration devices) (or RE) among the 2m coil-type vibration devices may be disposed at the second central portion (right central portion) CP2 of the display panel 200. For example, n third vibration devices 1210 (e.g., the first n number of vibration devices or the first n vibration devices) (or LP) among the 2n film-type vibration devices may be disposed at the first peripheral portion EP1 of the display panel 200, and the other n fourth vibration devices 1230 (e.g., the second n number of vibration devices or the second n vibration devices) (or RP) among the 2n film-type vibration devices may be disposed at the second peripheral portion EP2 of the display panel 200.

[0654] The 2m coil-type vibration devices 810 and 830 and the 2n film-type vibration devices 1210 and 1230 can vibrate based on a driving signal from the driving circuit 300 to vibrate the display panel 200, and thus, sound can be generated or haptic feedback (e.g., haptic vibration) can be generated.

[0655] According to an embodiment of the present disclosure, the driving circuit 300 may transfer a driving signal provided from a display host system to the vibration devices 810, 830, 1210, and 1230. For example, when the driving circuit 300 includes a vibration driving circuit 380, the vibration driving circuit 380 may control the vibration devices 810, 830, 1210, and 1230 in response to a driving signal from the display host system.

[0656] Hereinafter, an example in which the vibration driving circuit 380 controls the vibration devices 810, 830, 1210, and 1230 will be described, but the embodiments of the present disclosure are not limited thereto. For example, the vibration devices (e.g., the first vibration device to the fourth vibration device) 810, 830, 1210, and 1230 may be controlled by the display host system. For example, the vibration driving circuit 380 may be another circuit (e.g., a module) implemented to control the vibration devices 810, 830, 1210, and 1230 based on a driving signal provided from the display host system.

[0657] The vibration driving circuit 380 may drive the first to fourth vibration devices 810, 830, 1210, and 1230 based on a driving signal provided from the display host system to vibrate the display panel 200, and thus, one or more of sound and haptic feedback may be generated, or sound and haptic feedback may be generated simultaneously. For example, the vibration driving circuit 380 may be implemented to increase or maximize the driving efficiency of the vibration devices by driving to reduce or minimize the mutual interference between sound and haptic feedback.

[0658] According to an embodiment of the present disclosure, the vibration driving circuit 380 may analyze the frequency of a driving signal from the display host system, and then, may independently drive the first vibration device 800 and the second vibration device 1200 for each frequency band. For example, the vibration driving circuit 380 may independently drive the first vibration device 800 and the second vibration device 1200 based on the frequency band of the driving signal, touch event occurrence information, and touch coordinate information.

[0659] According to an embodiment of the present disclosure, the vibration driving circuit 380 may independently drive the first vibration device 810 and the second vibration device 830 of the first vibration device 800. For example, the vibration driving circuit 380 may independently drive the third vibration device 1210 and the fourth vibration device 1230 of the second vibration device 1200.

[0660] According to an embodiment of the present disclosure, the vibration driving circuit 380 may drive at least one or more of the first vibration device 800 and the second vibration device 1200 based on the frequency band of the driving signal, the touch event occurrence information, and the touch coordinate information. Accordingly, the vibration driving circuit 380 may allow the display panel 200 to generate sound, generate haptic feedback, or generate both sound and haptic feedback.

[0661] According to an embodiment of the present disclosure, the vibration driving circuit 380 may drive the first vibration device 800 to allow the display panel 200 to generate sound of a first tone band, or may drive the second vibration device 1200 to allow the display panel 200 to generate sound of a second tone band, or may drive the first vibration device 800 to allow the display panel 200 to generate haptic feedback of a third tone band.

[0662] According to an embodiment of the present disclosure, the first tone band may be a mid-low tone band. For example, the mid-low tone band may be from 0 kHz to 3 kHz, but embodiments of the present disclosure are not limited thereto. For example, the second tone band may be a high tone band higher than the first tone band. For example, the high tone band may be 3 kHz or higher, but embodiments of the present disclosure are not limited thereto. For example, the third tone band may be a low tone band. For example, the low tone band may be less than 200 Hz, but embodiments of the present disclosure are not limited thereto.

[0663] When the vibration driving circuit 380 vibrates the display panel 200 to generate sound, the vibration driving circuit 380 may drive at least one or more of the first vibration device 800 and the second vibration device 1200 based on the frequency band of the driving signal to vibrate the display panel 200.

[0664] According to an embodiment of the present disclosure, when the frequency of the driving signal is a frequency corresponding to the first tone band (e.g., the first frequency band), the vibration driving circuit 380 may drive the first vibration device 800 to allow the display panel 200 to vibrate, thereby generating sound of the first tone band. For example, when the frequency of the driving signal is a frequency corresponding to the second tone band (e.g., the second frequency band), the vibration driving circuit 380 may drive the second vibration device 1200 to allow the display panel 200 to vibrate, thereby generating sound of the second tone band.

[0665] When a touch event occurs, the vibration driving circuit 380 may drive the first vibration device 800 to allow the display panel 200 to vibrate, thereby generating haptic feedback for the third tone vocal cord. For example, based on the touch coordinate information, when the vibration driving circuit 380 generates haptic feedback, the vibration driving circuit 380 may vibrate the first vibration device 810 disposed at the left center portion CP1 of the display panel 200, or may vibrate the second vibration device 830 disposed at the right center portion CP2 of the display panel 200.

[0666] According to an embodiment of the present disclosure, when the touch coordinates are coordinates in the left region LHP of the display panel 200, the vibration driving circuit 380 may vibrate the first vibration device 810 disposed at the left center portion CP1 of the display panel 200, or when the touch coordinates are coordinates in the right region RHP of the display panel 200, the vibration driving circuit 380 may vibrate the second vibration device 830 disposed at the right center portion CP2 of the display panel 200. For example, when the touch coordinates are coordinates on the center line CL, the vibration driving circuit 380 may vibrate the first vibration device 810 disposed at the left center portion CP1 of the display panel 200, or may vibrate the second vibration device 830 disposed at the right center portion CP2 of the display panel 200.

[0667] According to an embodiment of the present disclosure, the vibration driving circuit 380 may vibrate the second vibration device 1200 to vibrate the display panel 200, thereby generating all sound and haptic feedback.

[0668] According to an embodiment of the present disclosure, when the touch coordinates are coordinates in the left region LHP of the display panel 200, the vibration driving circuit 380 may drive the first vibration device 810 disposed at the left center portion CP1 of the display panel 200 to allow the left center portion CP1 of the display panel 200 to vibrate, thereby generating haptic feedback for the third tone vocal cord, and may drive the second vibration device 830 disposed at the right center portion CP2 of the display panel 200 to allow the right center portion CP2 of the display panel 200 to vibrate, thereby generating sound for the first tone vocal cord.

[0669] According to an embodiment of the present disclosure, when the touch coordinates are coordinates in the right region RHP of the display panel 200, the vibration driving circuit 380 may drive the second vibration device 830 disposed at the right center portion CP2 of the display panel 200 to allow the right center portion CP2 of the display panel 200 to vibrate, thereby generating haptic feedback for the third tone vocal cord, and may drive the first vibration device 810 disposed at the left center portion CP1 of the display panel 200 to allow the left center portion CP1 of the display panel 200 to vibrate, thereby generating sound for the first tone vocal cord.

[0670] According to an embodiment of the present disclosure, in order to reduce, minimize, or prevent a decrease in sound pressure level performance, the vibration driving circuit 380 may equalize a signal having a frequency corresponding to the first tone vocal cord (e.g., the first frequency band), and then may drive the first vibration device 810 disposed at the left center portion CP1 of the display panel 200 based on the equalized signal to allow the left center portion CP1 of the display panel 200 to vibrate, thereby generating a sound of the first tone vocal cord, or may drive the second vibration device 830 disposed at the right center portion CP2 of the display panel 200 to allow the right center portion CP2 of the display panel 200 to vibrate, thereby generating a sound of the first tone vocal cord.

[0671] When the frequency of the third tone vocal cord (e.g., the third frequency band) is included in the frequency of the first tone vocal cord (e.g., the first frequency band), the sound pressure level may decrease and the sound characteristics may change when generating all sounds and haptic feedback. To reduce, prevent, or minimize the decrease in sound pressure level and the change in sound characteristics, the vibration driving circuit 380 may generate a sound of other tone vocal cords (e.g., the fourth tone vocal cord) in the frequency of the first tone vocal cord that may not correspond to the frequency of the third tone vocal cord. For example, when the first tone vocal cord is from 0 kHz to 3 kHz and the third tone vocal cord is less than 200 Hz, the vibration driving circuit 380 may generate a sound DVS having a frequency from 200 Hz to 3 kHz (e.g., the fourth frequency band).

[0672] According to an embodiment of the present disclosure, when the occurrence of a touch event ends, the vibration driving circuit 380 may use the area of the display panel 200 that generates haptic feedback as the area for generating the sound DVS.

[0673] According to an embodiment of the present disclosure, when coordinates in the left area LHP of the display panel 200 are touched, the vibration driving circuit 380 may vibrate the left center portion CP1 of the display panel 200 to generate haptic feedback of the third tone vocal cord, and then, when the occurrence of the touch event ends, the vibration driving circuit 380 may vibrate the left center portion CP1 of the display panel 200 to generate a sound of the first tone vocal cord or a sound of the fourth tone vocal cord.

[0674] According to an embodiment of the present disclosure, when coordinates in the right area RHP of the display panel 200 are touched, the vibration driving circuit 380 may vibrate the right center portion CP2 of the display panel 200 to generate haptic feedback of the third tone vocal cord, and then, when the occurrence of the touch event ends, the vibration driving circuit 380 may vibrate the right center portion CP2 of the display panel 200 to generate a sound of the first tone vocal cord or a sound of the fourth tone vocal cord.

[0675] ​ and Figure 37BIt is a flowchart for describing a driving algorithm for generating sound and haptic feedback in a display device according to an embodiment of the present disclosure.

[0676] Referring to Figures 36 to 37B , in operation S3700, the vibration driving circuit 380 may analyze the frequency of the driving signal provided from the display host system.

[0677] After analyzing the frequency in operation S3700, in operation S3710, the vibration driving circuit 380 may determine whether a signal in the second frequency band is included in the driving signal. When a signal in the second frequency band is included in the driving signal (for example, "Yes" in operation S3710), in operation S3720, the vibration driving circuit 380 may drive the second vibration device 1200 based on the signal in the second frequency band of the driving signal to allow the display panel 200 to vibrate, thereby generating a sound of the second tone vocal band.

[0678] In operation S3720, the vibration driving circuit 380 may drive the third vibration device 1210 to allow the left peripheral portion EP1 of the display panel 200 to vibrate, thereby generating a left sound, and may drive the fourth vibration device 1230 to allow the right peripheral portion EP2 of the display panel 200 to vibrate, thereby generating a right sound.

[0679] When a signal in the second frequency band is not included in the driving signal (for example, "No" in operation S3710) or after generating the sound of the second tone vocal band in operation S3720, the vibration driving circuit 380 may determine the occurrence or non-occurrence of a touch event in operation S3730.

[0680] In operation S3730, the vibration driving circuit 380 may determine the occurrence or non-occurrence of a touch event based on the touch event occurrence information from the display host system. For example, the vibration driving circuit 380 may determine whether a haptic feedback signal is included in the driving signal to determine the occurrence or non-occurrence of a touch event.

[0681] When it is determined that no touch event has occurred (for example, "No" in operation S3730), in operation S3740, the vibration driving circuit 380 may determine whether a signal in the first frequency band is included in the driving signal, and when a signal in the first frequency band is included in the driving signal (for example, "Yes" in operation S3740), in operation S3750, the vibration driving circuit 380 may drive the first vibration device 800 to allow the display panel 200 to vibrate, thereby generating a sound of the first tone vocal band.

[0682] In operation S3750, the vibration driving circuit 380 may drive the first vibration device 810 to allow the left center portion CP1 of the display panel 200 to vibrate, thereby generating a left sound, and may drive the second vibration device 830 to allow the right center portion CP2 of the display panel 200 to vibrate, thereby generating a right sound.

[0683] In operation S3740, when the signal of the first band is not included in the driving signal (e.g., "No" in operation S3740), the vibration driving circuit 380 may end the control operation based on the currently received driving signal.

[0684] In operation S3750, the vibration driving circuit 380 may control the first vibration device 800, and then may end the control operation based on the currently received driving signal.

[0685] In operation S3730, when it is determined that a touch event has occurred (e.g., "Yes" in operation S3730), the vibration driving circuit 380 may, in operation S3760, determine the vibration device among the plurality of vibration devices included in the first vibration device 800 that is to be driven for haptic feedback based on the touch coordinates. For example, the vibration driving circuit 380 may identify the touch coordinates based on the haptic feedback signal included in the driving signal.

[0686] In operation S3760, the vibration driving circuit 380 may determine whether the touch coordinates are coordinates in the left region LHP of the display panel 200 or coordinates in the right region RHP of the display panel 200 based on the touch coordinate information from the display host system. When the touch coordinates are coordinates in the left region LHP of the display panel 200, the vibration driving circuit 380 may determine the first vibration device 810 provided at the left center portion CP1 of the display panel 200 as the vibration device to be driven, and when the touch coordinates are coordinates in the right region RHP of the display panel 200, the vibration driving circuit 380 may determine the second vibration device 820 provided at the right center portion CP2 of the display panel 200 as the vibration device to be driven.

[0687] After operation S3760, in operation S3770, the vibration driving circuit 380 may determine whether the signal of the first band is included in the driving signal, and when the signal of the first band is not included in the driving signal (e.g., "No" in operation S3770), the vibration driving circuit 380 may drive the driving module determined in operation S3760, and thus may allow the display panel 200 to vibrate, thereby generating haptic feedback of the third tone band in operation S3780.

[0688] In operation S3780, the vibration driving circuit 380 may drive the vibration device, and then may end the control operation based on the currently received driving signal.

[0689] In operation S3770, when it is determined that the signal of the first frequency band is included in the drive signal (e.g., "yes" in operation S3770), the vibration drive circuit 380 may drive the drive module determined in operation S3760 to allow the display panel 200 to vibrate, thereby generating the haptic feedback of the third tone band, and in operation S3790, it may drive other drive modules in the vibration devices included in the first vibration device 800 to allow the display panel 200 to vibrate, thereby generating the sound of the first tone band.

[0690] In operation S3790, when the first vibration device 810 is determined as the vibration device for generating haptic feedback in operation S3760, the vibration drive circuit 380 may drive the first vibration device 810 to allow the left center portion CP1 of the display panel 200 to vibrate, thereby generating the haptic feedback of the third tone band, and may drive the second vibration device 830 to allow the right center portion CP2 of the display panel 200 to vibrate, thereby generating the sound of the first tone band.

[0691] In operation S3790, when the second vibration device 830 is determined as the vibration device for generating haptic feedback in operation S3760, the vibration drive circuit 380 may drive the second vibration device 830 to allow the right center portion CP2 of the display panel 200 to vibrate, thereby generating the haptic feedback of the third tone band, and may drive the first vibration device 810 to allow the left center portion CP1 of the display panel 200 to vibrate, thereby generating the sound of the first tone band.

[0692] In operation S3790, the vibration drive circuit 380 may equalize the signal of the first frequency band included in the drive signal, and then, may drive the second vibration device 830 based on the equalized signal, or may drive the first vibration device 810.

[0693] In operation S3790, based on the signal other than the signal of the third frequency band in the signal of the first frequency band included in the drive signal, the vibration drive circuit 380 may drive the second vibration device 830 or the first vibration device 810 to allow the display panel 200 to vibrate, thereby generating the sound of the fourth tone band.

[0694] In operation S3790, the vibration drive circuit 380 may drive the vibration device, and then may end the control operation based on the currently received drive signal.

[0695] According to an embodiment of the present disclosure, the vibration drive circuit 380 may also perform the following operations.

[0696] After operation S3790, the vibration driving circuit 380 may determine in operation S3800 whether the occurrence of the touch event has ended, and when the occurrence of the touch event has not ended (e.g., "No" in operation S3800), the vibration driving circuit 380 may perform the operation performed in operation S3790.

[0697] In operation S3790, when the occurrence of the touch event ends (e.g., "Yes" in operation S3800), the vibration driving circuit 380 may drive, in operation S3790, the vibration device to be driven to generate haptic feedback to generate the sound DVS of the first tone vocal band. Thus, in operation S3810, all the vibration devices 810 and 830 included in the first vibration device 800 may be driven to allow the display panel 200 to vibrate, thereby generating the sound of the first tone vocal band.

[0698] In operation S3810, the vibration driving circuit 380 may drive the vibration device and may then end the control operation based on the currently received driving signal.

[0699] Figure 38 is a graph showing the sound pressure level characteristics of the sound generated by driving based on the Figure 37A and Figure 37B driving algorithm.

[0700] In Figure 38 , the dashed line represents the sound pressure level characteristics before applying the driving algorithm, and the solid line represents the sound pressure level characteristics after applying the driving algorithm. The sound pressure level at point "A" is 90.89 dB, the sound pressure level at point "B" is 85.93 dB, the sound pressure level at point "C" is 77.04 dB, and the sound pressure level at point "D" is 71.68 dB.

[0701] Referring to Figure 38 , when driving the vibration device by applying the driving algorithm according to an embodiment of the present disclosure, it can be seen that, compared with before applying the driving algorithm according to an embodiment of the present disclosure, the display device generates a sound with further enhanced sound pressure level characteristics. For example, when applying the driving algorithm at a frequency of 300 Hz, it can be seen that the sound pressure level is increased by about 5 dB or more compared with the case where the driving algorithm is not applied. For example, when applying the driving algorithm at a frequency of 3 kHz, it can be seen that the sound pressure level is increased by about 6 dB or more compared with when the driving algorithm is not applied. Therefore, according to an embodiment of the present disclosure, a display device can be provided in which its sound pressure level characteristics are enhanced in the mid-low tone vocal band.

[0702] As described above, when using the driving algorithm according to an embodiment of the present disclosure, the display device can simultaneously generate sound and haptic feedback and can generate a sound with enhanced sound pressure level characteristics.

[0703] The vibration device according to an embodiment of the present disclosure can be applied to a vibration device provided at a display device. The display device according to an embodiment of the present disclosure can be applied to a mobile device, a video phone, a smart watch, a watch phone, a wearable device, a foldable device, a rollable device, a bendable device, a flexible device, a curved device, a variable device, a sliding device, an electronic organizer, an e-book, a portable multimedia player (PMP), a personal digital assistant (PDA), an MP3 player, a mobile medical device, a desktop personal computer (PC), a laptop PC, a netbook computer, a workstation, a navigation device, an in-vehicle navigation device, an in-vehicle display device, an in-vehicle device, a theater device, a theater display device, a TV, a wallpaper display device, a signage device, a game console, a notebook computer, a monitor, a camera, a camcorder, a household appliance, etc. In addition, the vibration device according to an embodiment of the present disclosure can be applied to an organic light-emitting lighting device or an inorganic light-emitting lighting device. When the vibration device or device according to an embodiment of the present disclosure is applied to a lighting device, the vibration device can function as lighting and a speaker.

[0704] The display device according to an embodiment of the present disclosure can output sound in a forward direction of the display panel and can output sound having improved sound quality, sound performance, and sound pressure level characteristics, thereby enhancing the immersive experience of a viewer or listener. In addition, the display device according to an embodiment of the present disclosure can reduce, prevent, or minimize damage to a driving circuit caused by vibration of the display panel, thereby enhancing the reliability of the driving circuit.

[0705] In the display device according to an embodiment of the present disclosure, the degree of freedom of the arrangement of the vibration device can be enhanced, and based on the effective arrangement of the vibration device, the sound pressure level, sound quality, and reproduced tone vocal cords of the sound generated based on the vibration of the display panel can be increased. In addition, the display device according to an embodiment of the present disclosure can simultaneously generate sound and tactile feedback and can generate sound having enhanced sound pressure level characteristics.

[0706] Hereinafter, a display device and a vehicle including the display device according to various embodiments of the present disclosure will be described.

[0707] The display device according to an embodiment of the present disclosure can include a display panel configured to display an image, a driving circuit located at a rear surface of the display panel and including a flexible circuit film connected to the display panel and a printed circuit board connected to the flexible circuit film, a first support member located at the rear surface of the display panel and including a hole therein, and a vibration device supported by the first support member and including a first vibration device located at the rear surface of the display panel. The flexible circuit film can extend through the hole, and the printed circuit board can be disposed at a rear surface of the first support member.

[0708] According to some embodiments of the present disclosure, a printed circuit board may include a first substrate region overlapping with a first support member, a second substrate region overlapping with the first support member and a vibration device, and a third substrate region overlapping with the vibration device.

[0709] According to some embodiments of the present disclosure, the drive circuit may further include a control board, a signal transmission member, a timing control circuit, a user connector, and a vibration drive circuit.

[0710] According to some embodiments of the present disclosure, the display device may further include a second support member at a periphery of a rear surface of the first support member, and the printed circuit board may be disposed at the second support member.

[0711] According to some embodiments of the present disclosure, the display device may further include a front member at a front surface of the display panel, and a support frame at a rear surface of the front member, the support frame surrounding side surfaces of the display panel, and the first support member may be disposed at a rear surface of the support frame.

[0712] According to some embodiments of the present disclosure, the support frame may include a plurality of connecting portions spaced apart at one surface or a part of the support frame.

[0713] According to some embodiments of the present disclosure, the support frame may include an opening at a rear peripheral portion of the front member, the opening overlapping with the display panel or an opening in a central region of the display device.

[0714] According to some embodiments of the present disclosure, the support frame may be configured to support four peripheries of the front member, i.e., upper, lower, left, and right, and the four peripheries of the front member may be supported by the support frame.

[0715] According to some embodiments of the present disclosure, the display device may further include a third support member between the second support member and the printed circuit board.

[0716] According to some embodiments of the present disclosure, the first support member may include a (1-1) plate at a rear surface of the display panel, the (1-1) plate being configured to support a first vibration device; a forming portion extending from the (1-1) plate in an outward direction of the (1-1) plate; and a (1-2) plate extending from the forming portion in the outward direction of the (1-1) plate.

[0717] According to some embodiments of the present disclosure, the first support member may further include a vibration device receiving hole located at the (1-1) plate.

[0718] According to some embodiments of the present disclosure, the first support member may further include a wire hole or a wiring hole, and a wire or wiring is disposed at the (1-1) plate through the wire hole or the wiring hole.

[0719] According to some embodiments of the present disclosure, the first support member may further include dummy holes as ventilation holes at the (1-1)th plate.

[0720] According to some embodiments of the present disclosure, the first support member may further include holes for coupling or connecting the first support member to a support device at the (1-1)th plate.

[0721] According to some embodiments of the present disclosure, the first support member may further include holes for coupling or connecting the first support member to a vibration device at the (1-1)th plate.

[0722] According to some embodiments of the present disclosure, the forming part may include a first sub-forming part that extends from the outside of the (1-1)th plate in the outward direction of the (1-1)th plate to have an inclined surface facing the rear surface of the display panel.

[0723] According to some embodiments of the present disclosure, the forming part may include a first sub-forming part that extends from the outside of the (1-1)th plate in the outward direction of the (1-1)th plate to have an inclined surface facing the rear surface of the display panel, a second sub-forming part that extends from the outside of the first sub-forming part in the outward direction of the (1-1)th plate to be horizontal (e.g., parallel) to the display panel, and a third sub-forming part that extends from the outside of the second sub-forming part in the outward direction of the (1-1)th plate to have an inclined surface facing the rear surface of the display panel.

[0724] According to some embodiments of the present disclosure, the forming part may include a first sub-forming part that extends in the outward direction of the (1-1)th plate and a second sub-forming part that extends from the first sub-forming part in the outward direction of the (1-1)th plate, and the first sub-forming part includes an inclined surface from the outer end of the (1-1)th plate toward the rear surface of the display panel.

[0725] According to some embodiments of the present disclosure, the forming part may include a first sub-forming part that extends from the (1-1)th plate in the outward direction or a side direction of the (1-1)th plate.

[0726] According to some embodiments of the present disclosure, the second support member may include a (2-1)th plate at the first surface of the first support member, and the (2-1)th plate is horizontal (e.g., parallel) to the display panel.

[0727] According to some embodiments of the present disclosure, the second support member may further include a (2-2)th plate at the rear surface of the first support member, and the (2-2)th plate extends from the (2-1)th plate.

[0728] According to some embodiments of the present disclosure, the second support member may further include a (2-3) plate that extends from the (2-2) plate in the central direction of the first support member along the rear surface of the first support member.

[0729] According to some embodiments of the present disclosure, the display device may further include a (3-1) support member at the rear surface of the (2-1) plate, and a printed circuit board may be disposed at the (3-1) support member.

[0730] According to some embodiments of the present disclosure, the display device may further include a (3-1) support member at the rear surface of the (2-1) plate, and a (3-2) support member extending from the (3-1) support member along a part of the (2-2) plate. A flexible circuit film may extend through the hole, and the flexible circuit film may be disposed at the (3-2) support member.

[0731] According to some embodiments of the present disclosure, the display device may further include a (3-3) support member between the rear surface of the first support member and the (2-2) plate.

[0732] According to some embodiments of the present disclosure, the display device may further include a (3-1) support member at the rear surface of the (2-1) plate, a (3-2) support member extending from the (3-1) support member along a part of the (2-2) plate, and a (3-4) support member between the rear surface of the first support member and the (2-3) plate.

[0733] According to some embodiments of the present disclosure, the display device may further include a heat dissipation member between the rear surface of the display panel and the first vibration device.

[0734] According to some embodiments of the present disclosure, the display device may further include a connection member between the display panel and the first support member. The connection member may be disposed between the first vibration device and the hole, and the connection member may be disposed at the periphery of the first support member.

[0735] According to some embodiments of the present disclosure, the connection member may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer.

[0736] According to some embodiments of the present disclosure, the connection member may be adjacent to the periphery of the support frame, and each side of the connection member in its length direction may contact the periphery of the support frame.

[0737] According to some embodiments of the present disclosure, the display device may further include a support device between the rear surfaces of the first support member and the first vibration device, and the support member supports the first vibration device.

[0738] According to some embodiments of the present disclosure, the support device may include a support portion, a receiving portion, and a connecting portion configured to support a first vibration device, a part of the rear surface of the first vibration device being received in the receiving portion, and the connecting portion being configured to connect the first support member to the first vibration device.

[0739] According to some embodiments of the present disclosure, the connecting portion may include a protruding portion protruding from the periphery of the support portion and having a hook shape.

[0740] According to some embodiments of the present disclosure, the support device may further include a coupling hole provided by the support portion and the connecting portion.

[0741] According to some embodiments of the present disclosure, the display device may further include a rear cover at the rear surface of the first support member, the rear cover may include a first cover configured to cover the rear surface of the first support member, and a second cover disposed along the periphery of the first cover and configured to cover the side surface of the display panel.

[0742] According to some embodiments of the present disclosure, the display device may further include a rear cover at the rear surface of the first support member, the rear cover may include a first cover configured to cover the rear surface of the first support member, and a second cover disposed along the periphery of the first cover, the second cover being configured to cover the side surface of the support frame.

[0743] According to some embodiments of the present disclosure, the display device may further include: a rear cover at the rear surface of the first support member, the rear cover may include: a first cover configured to cover the rear surface of the first support member; a second cover disposed along the periphery of the first cover and configured to cover the side surface of the display panel; and a third cover located at the other periphery of the first cover opposite to one periphery, the third cover being configured to cover the side surface of the vibration device exposed at the rear surface of the first support member.

[0744] According to some embodiments of the present disclosure, the first cover may be configured to cover the rear surface of the first vibration device exposed at the rear surface of the first support member and the printed circuit board disposed at the rear surface of the first support member.

[0745] According to some embodiments of the present disclosure, the first cover may be configured to cover the rear surface of the first vibration device exposed at the rear surface of the first support member and the printed circuit board disposed at the rear surface of the first support member.

[0746] According to some embodiments of the present disclosure, the display device may further include a support structure between the first support member and the rear cover.

[0747] According to some embodiments of the present disclosure, the display device may further include a support structure between the first support member and the rear cover.

[0748] According to some embodiments of the present disclosure, the vibration device may further include a second vibration device at the rear surface of the display panel, and the second vibration device is configured to vibrate the display panel.

[0749] According to some embodiments of the present disclosure, the first vibration device may include at least one coil-type vibration device, and the second vibration device may include at least one film-type vibration device.

[0750] According to some embodiments of the present disclosure, the first vibration device may be at the central portion of the rear surface of the display panel, and the second vibration device may be at the peripheral portion of the rear surface of the display panel. The first vibration device may be configured to vibrate the central portion of the rear surface of the display panel to generate at least one of sound and haptic feedback, and the second vibration device may be configured to vibrate the peripheral portion of the rear surface of the display panel to generate sound.

[0751] According to some embodiments of the present disclosure, the first vibration device may be configured to vibrate the central portion of the rear surface of the display panel to generate at least one of sound of the first tone range and haptic feedback of the third tone range, and the second vibration device may be configured to vibrate the peripheral portion of the rear surface of the display panel to generate sound of the second tone range.

[0752] According to some embodiments of the present disclosure, the first vibration device may include 2m vibration devices, where m is a natural number. The first m of the 2m vibration devices may be disposed at one or more of the left central portion and the right central portion of the rear surface of the display panel, and the second m of the 2m vibration devices may be disposed at the other central portion of the rear surface of the display panel. The first m vibration devices may generate sound, and the second m vibration devices may simultaneously generate haptic feedback, or the first m vibration devices may generate haptic feedback, and the second m vibration devices may simultaneously generate sound.

[0753] According to some embodiments of the present disclosure, the second vibration device may include 2n vibration devices, where n is a natural number. The first n of the 2n vibration devices may be disposed at the first peripheral portion of the display panel, and the second n of the 2n vibration devices may be disposed at the second peripheral portion of the display panel.

[0754] According to some embodiments of the present disclosure, the driving circuit may include a vibration driving circuit configured to equalize a signal having a frequency of a first tone vocal cord included in the provided driving signal and drive a first vibration device based on the equalized signal to generate sound.

[0755] According to some embodiments of the present disclosure, a third tone vocal cord may be included in the first tone vocal cord, and when the vibration driving circuit drives the first vibration device to simultaneously generate sound and haptic feedback, the vibration driving circuit may also be configured to drive the first vibration device based on a signal having a frequency of other tone vocal cords in the frequency of the first tone vocal cord that do not correspond to the frequency of the third tone vocal cord to generate a sound of a fourth tone vocal cord.

[0756] According to some embodiments of the present disclosure, the vibration device may include: a piezoelectric vibration portion including a piezoelectric material, a composite piezoelectric material, or an electroactive material having a piezoelectric effect; a first electrode portion located at a first surface of the piezoelectric vibration portion and electrically connected to the first surface of the piezoelectric vibration portion; and a second electrode portion located at a second surface of the piezoelectric vibration portion opposite to the first surface and electrically connected to the second surface of the piezoelectric vibration portion.

[0757] According to some embodiments of the present disclosure, the vibration device may include a first protection member disposed on the first electrode portion and configured to protect the first electrode portion, and a second protection member disposed on the second electrode portion and configured to protect the second electrode portion.

[0758] According to some embodiments of the present disclosure, the piezoelectric vibration portion may include a plurality of first portions and a plurality of second portions alternately and repeatedly arranged along the width direction or the length direction of the piezoelectric vibration portion.

[0759] According to some embodiments of the present disclosure, the plurality of first portions may be formed of inorganic material portions, and the plurality of second portions may be formed of organic material portions.

[0760] According to some embodiments of the present disclosure, the modulus and viscoelasticity of the plurality of second portions may be lower than those of the plurality of first portions.

[0761] A display device according to some embodiments of the present disclosure may include: a display panel configured to display an image; a driving circuit disposed at a rear surface of the display panel, the driving circuit including a flexible circuit film connected to the display panel and a printed circuit board connected to the flexible circuit film; a support member at the rear surface of the display panel, the support member including an opening area; and a vibration device supported by the support member, the vibration device including a first vibration device at the rear surface of the display panel, the flexible circuit film may extend through the opening area, and the printed circuit board may be disposed at a rear surface of the support member.

[0762] According to some embodiments of the present disclosure, the display device may further include a support frame at the support member, the support frame having a hole therein, and a part of a rear surface of the first vibration device is received in the hole.

[0763] According to some embodiments of the present disclosure, a peripheral area of the hole may be between the support member and the rear surface of the vibration device.

[0764] According to some embodiments of the present disclosure, the display device may further include a guiding connection member between the support member and the support frame, and the guiding connection member may include a receiving hole formed to correspond to the hole.

[0765] According to some embodiments of the present disclosure, the display device may further include: a front member at a front surface of the display panel, the support member may include a lower plate at a rear surface of the display panel, the lower plate being configured to support the vibration device; and a side portion disposed along a perimeter of the lower plate and at a rear surface of the front member.

[0766] According to some embodiments of the present disclosure, the side portion may include an opening area, and the side portion may be configured to support three perimeters of the front member at the rear surface of the front member.

[0767] According to some embodiments of the present disclosure, the support frame may include a first surface and a second surface, the first surface being located at the support member and including the hole, and the second surface being disposed along a perimeter of the first surface and at a rear surface of the display panel.

[0768] According to some embodiments of the present disclosure, other portions of the second surface except for a portion corresponding to an opening area forming the support member may be covered by the support member.

[0769] According to some embodiments of the present disclosure, the support frame may further include a reinforcing structure at the first surface.

[0770] According to some embodiments of the present disclosure, the reinforcing structure may include a first reinforcing member configured to connect two different second surfaces and a second reinforcing member configured to connect the first reinforcing member to the second surface.

[0771] According to some embodiments of the present disclosure, the reinforcement structure may include at least one of a third reinforcement member, a fourth reinforcement member, and a fifth reinforcement member. The third reinforcement member may be configured to connect two different first reinforcement members, the fourth reinforcement member may be configured to connect two different second reinforcement members; and the fifth reinforcement member may be configured to connect the first reinforcement member to the second reinforcement member.

[0772] According to some embodiments of the present disclosure, the display device may further include a first connection member between the rear surface of the support member and the printed circuit board.

[0773] According to some embodiments of the present disclosure, the display device may further include a second connection member disposed along the opening area of the support member and extending from the first connection member.

[0774] According to some embodiments of the present disclosure, the display device may further include a heat dissipation member between the rear surface of the display panel and the first vibration device.

[0775] According to some embodiments of the present disclosure, the display device may further include a support device between the support frame and the rear surface of the first vibration device, and the support device supports the first vibration device.

[0776] According to some embodiments of the present disclosure, the display device may further include a rear cover at the rear surface of the support member. The rear cover may include a first cover configured to cover the rear surface of the support member, and a second cover disposed along the perimeter of the first cover. The second cover is configured to cover the opening area of the support member, and the second cover may be configured to cover the side surface of the display panel exp...

Claims

1. A display device, the display device comprising: A display panel configured to display an image; A driving circuit located at a rear surface of the display panel, the driving circuit comprising: A flexible circuit film connected to the display panel; and A printed circuit board connected to the flexible circuit film; A first support member located at the rear surface of the display panel, having a hole therein; A second support member located at a periphery of a rear surface of the first support member; and A vibration device supported by the first support member, the vibration device comprising a first vibration device located at the rear surface of the display panel, wherein the flexible circuit film extends through the hole, wherein the second support member comprises: A second one - plate located at a first surface of the first support member, the second one - plate being parallel to the display panel; and A second two - plate located at the rear surface of the first support member, the second two - plate extending from the second one - plate, and wherein the printed circuit board is disposed at the rear surface of the second one - plate.

2. The display device according to claim 1, wherein the printed circuit board includes a first substrate region overlapping the first support member, a second substrate region overlapping the first support member and the vibration device, and a third substrate region overlapping the vibration device.

3. The display device according to claim 1, wherein the driving circuit further comprises a control board, a signal transmission member, a timing control circuit, a user connector, and a vibration driving circuit.

4. The display device according to claim 1, wherein, The printed circuit board is located at the second support member.

5. The display device according to claim 1, wherein the display device further comprises: A front member located at a front surface of the display panel; And A support frame located at a rear surface of the front member, the support frame surrounding a side surface of the display panel, wherein the first support member is disposed at the rear surface of the support frame.

6. The display device according to claim 5, wherein the support frame includes a plurality of connecting portions spaced apart at one surface or a part of the support frame.

7. The display device according to claim 5, wherein the support frame includes an opening located at a rear peripheral portion of the front member, the opening overlapping the display panel or an opening in a central region of the display device.

8. The display device according to claim 5, wherein, The support frame is configured to support four peripheries of an upper periphery, a lower periphery, a left periphery, and a right periphery of the front member, and The four peripheries of the front member are supported by the support frame.

9. The display device according to claim 4, wherein the display device further comprises a third support member located between the second support member and the printed circuit board.

10. The display device according to claim 1, wherein, The first support member comprises: A first one - plate located at the rear surface of the display panel, the first one - plate being configured to support the first vibration device; A forming portion that extends from the first board in the outward direction of the first board; and A first second board that extends from the forming portion in the outward direction of the first board.

11. The display device according to claim 10, wherein, The first support member further includes a vibration device receiving hole located at the first board.

12. The display device according to claim 10, wherein, The first support member further includes a wire hole or a wiring hole, and a wire or wiring is disposed at the first board through the wire hole or the wiring hole.

13. The display device according to claim 10, wherein, The first support member further includes a dummy hole located at the first board.

14. The display device according to claim 10, wherein, The first support member further includes a hole located at the first board and configured to couple or connect the first support member to a support device.

15. The display device according to claim 10, wherein, The first support member further includes a hole located at the first board and configured to couple or connect the first support member to the vibration device.

16. The display device according to claim 10, wherein, The forming portion includes a first sub-forming portion that extends from an outer portion of the first board in the outward direction of the first board to have an inclined surface facing the rear surface of the display panel.

17. The display device according to claim 10, wherein, The forming portion includes: A first sub-forming portion that extends from an outer portion of the first board in the outward direction of the first board to have an inclined surface facing the rear surface of the display panel; A second sub-forming portion that extends from an outer portion of the first sub-forming portion in the outward direction of the first board to be parallel to the display panel; and A third sub-forming portion that extends from an outer portion of the second sub-forming portion in the outward direction of the first board to have an inclined surface facing the rear surface of the display panel.

18. The display device according to claim 10, wherein, The forming portion includes: A first sub-forming portion that extends in the outward direction of the first board, and the first sub-forming portion includes an inclined surface extending from an outer end portion of the first board toward the rear surface of the display panel; and A second sub-forming portion that extends from the first sub-forming portion in the outward direction of the first board.

19. The display device according to claim 10, wherein, The forming portion includes: A first sub-forming portion that extends from the first board in the outward direction or a side direction of the first board.

20. The display device according to claim 1, wherein The second support member further includes a second third board that extends from the second second board along the rear surface of the first support member in the central direction of the first support member.

21. The display device according to claim 1, wherein the display device further includes a third first support member located at the rear surface of the second first board, Among them, The printed circuit board is disposed at the third first support member.

22. The display device according to claim 1, wherein the display device further includes: A third first support member located at the rear surface of the second first board; And A third second support member extending from the third first support member along a portion of the second second board, Wherein, the flexible circuit film extends through the hole, and Wherein, the flexible circuit film is disposed at the third second support member.

23. The display device according to claim 1, wherein the display device further comprises a third support member located between the rear surface of the first support member and the second plate.

24. The display device according to claim 20, wherein the display device further comprises: a third first support member located at the rear surface of the second first plate; a third second support member extending from the third first support member along a portion of the second second plate; and a third fourth support member located between the rear surface of the first support member and the second third plate.

25. The display device according to claim 1, wherein the display device further comprises a heat dissipation member located between the rear surface of the display panel and the first vibration device.

26. The display device according to claim 5, wherein the display device further comprises a connection member located between the display panel and the first support member, Among them, the connection member being located between the first vibration device and the hole, and wherein the connection member is provided at the periphery of the first support member.

27. The display device according to claim 26, wherein, The connection member comprises an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer.

28. The display device according to claim 26, wherein, the connection member is adjacent to the periphery of the support frame, and each of the two sides of the connection member in the length direction of the connection member contacts the periphery of the support frame.

29. The display device according to claim 1, wherein the display device further comprises a support device located between the rear surface of the first vibration device and the first support member, and the support member supports the first vibration device.

30. The display device according to claim 29, wherein, The support device comprises: a support portion configured to support the first vibration device; a receiving portion in which a portion of the rear surface of the first vibration device is received; and a connection portion configured to connect the first support member to the first vibration device.

31. The display device according to claim 30, wherein, The connection portion comprises a protruding portion that protrudes from the periphery of the support portion and has a hook shape.

32. The display device according to claim 30, wherein, The support device further comprises: a connection hole provided by the support portion and the connection portion.

33. The display device according to claim 1, wherein the display device further comprises a rear cover located at the rear surface of the first support member, the rear cover comprising: a first cover configured to cover the rear surface of the first support member; and a second cover provided along the periphery of the first cover, the second cover being configured to cover the side surface of the display panel.

34. The display device according to claim 5, wherein the display device further comprises a rear cover located at the rear surface of the first support member, the rear cover comprising: a first cover configured to cover the rear surface of the first support member; and a second cover provided along the periphery of the first cover, the second cover being configured to cover the side surface of the support frame.

35. The display device according to claim 1, the display device further includes a rear cover located at the rear surface of the first support member, the rear cover includes: A first cover configured to cover the rear surface of the first support member; A second cover disposed along a perimeter of the first cover, the second cover configured to cover a side surface of the display panel; And A third cover located at other perimeters of the first cover opposite to the one perimeter, the third cover configured to cover a side surface of the vibration device exposed at the rear surface of the first support member.

36. The display device according to claim 33, wherein, The first cover is configured to cover: The rear surface of the first vibration device exposed at the rear surface of the first support member; And The printed circuit board located at the rear surface of the first support member.

37. The display device according to claim 34, wherein, The first cover is configured to cover: The rear surface of the first vibration device exposed at the rear surface of the first support member; And The printed circuit board located at the rear surface of the first support member.

38. The display device according to claim 33, the display device further includes a support structure located between the first support member and the rear cover.

39. The display device according to claim 34, the display device further includes a support structure located between the first support member and the rear cover.

40. The display device according to claim 1, wherein, The vibration device further includes a second vibration device located at the rear surface of the display panel, the second vibration device configured to vibrate the display panel.

41. The display device according to claim 40, wherein, The first vibration device includes at least one coil-type vibration device, and The second vibration device includes at least one film-type vibration device.

42. The display device according to claim 40, wherein, The first vibration device is located at a central portion of the rear surface of the display panel, The second vibration device is located at a peripheral portion of the rear surface of the display panel, The first vibration device is configured to vibrate a central portion of the rear surface of the display panel to generate at least one of sound and haptic feedback, and The second vibration device is configured to vibrate a peripheral portion of the rear surface of the display panel to generate sound.

43. The display device according to claim 42, wherein, The first vibration device is configured to vibrate a central portion of the rear surface of the display panel to generate at least one of the following: Sound of a first tone vocal cord; And Haptic feedback of a third tone vocal cord, and The second vibration device is configured to vibrate a peripheral portion of the rear surface of the display panel to generate sound of a second tone vocal cord.

44. The display device according to claim 42, wherein, The first vibration device includes 2m vibration devices, where m is a natural number, Among the 2m vibration devices, the first m vibration devices are disposed at one or more of a left central portion and a right central portion of the rear surface of the display panel, The second m vibration devices among the 2m vibration devices are disposed at another central portion of the rear surface of the display panel, and the first m vibration devices generate sound, and the second m vibration devices simultaneously generate haptic feedback, or the first m vibration devices generate haptic feedback, and the second m vibration devices simultaneously generate sound.

45. The display device according to claim 42, Among them, the second vibration device includes 2n vibration devices, where n is a natural number, and wherein, a first n vibration devices among the 2n vibration devices are disposed at a first peripheral portion of the display panel, and a second n vibration devices among the 2n vibration devices are disposed at a second peripheral portion of the display panel.

46. The display device according to claim 43, wherein, The driving circuit includes a vibration driving circuit configured to: equalize a signal having a frequency of the first tone vocal band included in a driving signal provided to the vibration driving circuit; and drive the first vibration device based on the equalized signal to generate sound.

47. The display device according to claim 46, wherein the third tone vocal band is included in the first tone vocal band, and when the vibration driving circuit drives the first vibration device to simultaneously generate sound and haptic feedback, the vibration driving circuit is further configured to drive the first vibration device based on a signal having a frequency of other tone vocal bands in the frequency of the first tone vocal band that does not correspond to the frequency of the third tone vocal band to generate sound of a fourth tone vocal band.

48. The display device according to claim 1, wherein, The vibration device includes: a piezoelectric vibration portion including a piezoelectric material, a composite piezoelectric material, or an electroactive material having a piezoelectric effect; a first electrode portion located at a first surface of the piezoelectric vibration portion and electrically connected to the first surface of the piezoelectric vibration portion; and a second electrode portion located at a second surface of the piezoelectric vibration portion opposite to the first surface and electrically connected to the second surface of the piezoelectric vibration portion.

49. The display device according to claim 48, wherein, The vibration device further includes: a first protection member disposed on the first electrode portion, the first protection member being configured to protect the first electrode portion; and a second protection member disposed on the second electrode portion, the second protection member being configured to protect the second electrode portion.

50. The display device according to claim 48, wherein, The piezoelectric vibration portion includes a plurality of first portions and a plurality of second portions alternately and repeatedly arranged along a width direction or a length direction of the piezoelectric vibration portion.

51. The display device according to claim 50, wherein, The plurality of first portions are formed of inorganic material portions and the plurality of second portions are formed of organic material portions.

52. The display device according to claim 50, wherein, The modulus and viscoelasticity of the plurality of second portions are less than those of the plurality of first portions.

53. A display device, the display device includes: a display panel configured to display an image; a driving circuit located at a rear surface of the display panel, the driving circuit including: a flexible circuit film connected to the display panel; and a printed circuit board connected to the flexible circuit film; A support member located at the rear surface of the display panel, the support member including an opening area; A first connection member located between the rear surface of the support member and the printed circuit board; and A vibration device supported by the support member, the vibration device including a first vibration device located at the rear surface of the display panel, wherein the flexible circuit film extends through the opening area, and wherein the printed circuit board is disposed at the rear surface of the first connection member.

54. The display device according to claim 53, the display device further comprising: A support frame located at the support member, having a hole in the support member, wherein a part of the rear surface of the first vibration device is received in the hole.

55. The display device according to claim 54, wherein, The peripheral area of the hole is located between the rear surface of the vibration device and the support member.

56. The display device according to claim 55, the display device further comprising a guiding connection member located between the support member and the support frame, the guiding connection member including a receiving hole formed to correspond to the hole.

57. The display device according to claim 53, the display device further comprising: A front member located at the front surface of the display panel, wherein the support member includes: A lower plate located at the rear surface of the display panel, the lower plate being configured to support the vibration device; and Sides disposed along the periphery of the lower plate and located at the rear surface of the front member.

58. According to the display device of claim 57, wherein, The sides include the opening area, and The sides are configured to support three peripheries of the front member at the rear surface of the front member.

59. The display device according to claim 54, wherein, The support frame includes: A first surface located at the support member, the first surface including the hole; and A second surface disposed along the periphery of the first surface and located at the rear surface of the display panel.

60. The display device according to claim 59, wherein, Another part of the second surface except for the part corresponding to the part where the opening area of the support member is formed is covered by the support member.

61. The display device according to claim 60, wherein, The support frame further includes a strengthening structure located at the first surface.

62. The display device according to claim 61, wherein, The strengthening structure includes: A first strengthening member configured to connect two different second surfaces; and A second strengthening member configured to connect the first strengthening member to the second surface.

63. According to the display device of claim 62, wherein, The strengthening structure includes at least one of the following: A third strengthening member; A fourth strengthening member; and A fifth strengthening member, The third strengthening member is configured to connect two different first strengthening members, The fourth strengthening member is configured to connect two different second strengthening members, and The fifth strengthening member is configured to connect the first strengthening member to the second strengthening member.

64. The display device according to claim 63, further comprising a second connecting member disposed along an opening area of the support member and extending from the first connecting member.

65. The display device according to claim 53, further comprising a heat dissipation member located between a rear surface of the display panel and the first vibration device.

66. The display device according to claim 54, further comprising a support device located between a rear surface of the first vibration device and the support frame, the support device supporting the first vibration device.

67. The display device according to claim 53, further comprising a rear cover located at a rear surface of the support member, the rear cover comprising: a first cover configured to cover the rear surface of the support member; and a second cover disposed along a periphery of the first cover, the second cover configured to cover the opening area of the support member, wherein the second cover is configured to cover a side surface of the display panel exposed through the opening area and the flexible circuit film disposed along the opening area.

68. The display device according to claim 53, further comprising a rear cover located at a rear surface of the support member, the rear cover comprising: a first cover configured to cover the rear surface of the support member; and a second cover located at a periphery of the first cover, the second cover configured to cover the opening area of the support member, wherein the second cover is configured to cover a side surface of the display panel exposed through the opening area and the flexible circuit film disposed along the opening area.

69. The display device according to claim 67, wherein, The first cover covers: a rear surface of the first vibration device exposed at the rear surface of the support member; and the printed circuit board located at the rear surface of the support member.

70. The display device according to claim 68, wherein, The first cover is configured to cover: a rear surface of the first vibration device exposed at the rear surface of the support member; and the printed circuit board located at the rear surface of the support member.

71. The display device according to claim 67, further comprising a support structure located between the support member and the rear cover.

72. The display device according to claim 68, further comprising a support structure located between the support member and the rear cover.

73. The display device according to claim 72, wherein, The vibration device further comprises a second vibration device located at a rear surface of the display panel, the second vibration device configured to vibrate the display panel.

74. In the display device according to claim 73, wherein the first vibration device includes at least one coil-type vibration device, and the second vibration device includes at least one film-type vibration device.

75. In the display device according to claim 73, wherein the first vibration device is located at a central portion of a rear surface of the display panel, the second vibration device is located at a peripheral portion of a rear surface of the display panel, The first vibration device is configured to vibrate a central portion of a rear surface of the display panel to generate at least one of sound and haptic feedback, and the second vibration device is configured to vibrate a peripheral portion of the rear surface of the display panel to generate sound.

76. The display device according to claim 75, wherein, the first vibration device is further configured to vibrate a central portion of the rear surface of the display panel to generate at least one of the following: Sound of a first tone vocal cord; and Haptic feedback of a third tone vocal cord, and the second vibration device is further configured to vibrate a peripheral portion of the rear surface of the display panel to generate sound of a second tone vocal cord.

77. The display device according to claim 75, wherein, the first vibration device includes 2m vibration devices, where m is a natural number, a first m of the 2m vibration devices are disposed at one or more of a left central portion and a right central portion of the rear surface of the display panel, a second m of the 2m vibration devices are disposed at the other central portion of the rear surface of the display panel, and the first m vibration devices generate sound, and the second m vibration devices simultaneously generate haptic feedback, or the first m vibration devices generate haptic feedback, and the second m vibration devices simultaneously generate sound.

78. The display device according to claim 75, Among them, the second vibration device includes 2n vibration devices, where n is a natural number, and wherein, a first n of the 2n vibration devices are disposed at a first peripheral portion of the display panel, and a second n of the 2n vibration devices are disposed at a second peripheral portion of the display panel.

79. The display device according to claim 76, wherein, The driving circuit includes a vibration driving circuit, and the driving circuit is configured to: Equalize a signal having a frequency of the first tone vocal cord included in a driving signal provided to the vibration driving circuit; and Drive the first vibration device based on the equalized signal to generate sound.

80. The display device according to claim 79, wherein, the third tone vocal cord is included in the first tone vocal cord, and the vibration driving circuit is further configured to: Drive the first vibration device to simultaneously generate sound and haptic feedback; and Drive the first vibration device based on a signal having a frequency of another tone vocal cord in the frequency of the first tone vocal cord that does not correspond to the frequency of the third tone vocal cord to generate sound of a fourth tone vocal cord.

81. The display device according to claim 53, wherein, The vibration device includes: A piezoelectric vibration portion including a piezoelectric material, a composite piezoelectric material, or an electroactive material having a piezoelectric effect; A first electrode portion located at a first surface of the piezoelectric vibration portion and electrically connected to the first surface of the piezoelectric vibration portion; and A second electrode portion located at a second surface of the piezoelectric vibration portion opposite to the first surface and electrically connected to the second surface of the piezoelectric vibration portion.

82. A vehicle, the vehicle comprising: A dashboard, the dashboard comprising: A first area facing the driver's seat; A second area facing the passenger seat; and A third area located between the first area and the second area; A dashboard device, the dashboard device comprising a first display located at the first area of the dashboard; and An infotainment device, the infotainment device comprising one or more of the following: A second display located at the third area of the dashboard; A third display located at the second area of the dashboard; A fourth display located at the rear surface of the driver's seat; and A fifth display located at the rear surface of the passenger seat, wherein one or more of the first display to the fifth display comprises the display device according to any one of claims 1 to 81.

83. The vehicle according to claim 82, wherein, One or more of the first display to the fifth display are configured to output sound based on vibrations of the display panel, the vibrations of the display panel being based on vibrations of the vibration device.

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