Electronic device

Abstract

An electronic device includes a display member configured to display an image, a vibration device at a rear surface of the display member, a support frame at a rear surface of the vibration device, and an adhesive member between the support frame and the rear surface of the display member. Further, the adhesive member and / or the support frame are spaced apart from the vibration device, the vibration device configured to vibrate in a direction toward the display member.

Description

Technical Field

[0001] This disclosure relates to electronic devices for outputting sound. Background Technology

[0002] The device includes a display component for displaying images and a sound device for outputting sound associated with the images displayed by the display component. While screen sizes are gradually increasing, the demand for lightness and thinness is also growing. However, achieving lightness and thinness is difficult because the device must include sufficient space for embedding sound devices such as speakers for outputting sound. Furthermore, the sound generated by the sound devices embedded in the device is output towards the rear or side surfaces of the device's main body rather than the front surface of the display component. This means that the sound does not move towards the viewer or the user viewing the image in the area in front of the display component, hindering the viewer's immersive experience. For example, sound quality and fidelity can be compromised because sound waves often originate at the rear or sides of the device and reach the user indirectly after being reflected by objects or blocked by parts of the device itself.

[0003] Furthermore, the speaker used in the device can be, for example, an actuator comprising a coil and a magnet. However, when using an actuator comprising a coil and a magnet in a device, there is a drawback of relatively large thickness. For example, even if the display panel is thin, a large speaker attached to the back of the device can significantly detract from the overall aesthetics and make the device relatively bulky. Therefore, piezoelectric devices that can achieve thinness have attracted much attention. Because piezoelectric devices are fragile, they are easily damaged by external impacts, resulting in low reliability of sound reproduction and a shortened lifespan. Summary of the Invention

[0004] Therefore, the inventors have recognized the aforementioned problems and have conducted various experiments to allow sound to travel in the forward direction of the device and enhance the quality of the sound. Through these experiments, the inventors have invented a novel device that allows sound to travel in the forward direction of the device and enhances sound pressure level characteristics and / or sound characteristics.

[0005] One aspect of this disclosure is to provide an apparatus that can cause a display element to vibrate in order to output sound in the forward direction of the display element, thereby amplifying the sound.

[0006] Additional advantages and features of this disclosure will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art upon review of the following, or may be learned by practice of this disclosure. The objects and other advantages of this disclosure may be realized and obtained from the written description and the structures specifically pointed out in the appended claims and drawings.

[0007] To achieve these and other aspects of the inventive concept, as implemented and broadly described, an apparatus includes: a display member configured to display an image; a vibrating device at a rear surface of the display member; a support frame at a rear surface of the vibrating device; and an adhesive member between the support frame and the rear surface of the display member, the adhesive member and / or the support frame being spaced apart from the vibrating device, the vibrating device being configured to vibrate in a direction toward the display member. The apparatus may be a display device.

[0008] In another aspect, an apparatus includes: a display member configured to display an image; a support frame at a rear surface of the display member; an adhesive member between the support frame and the rear surface of the display member, the adhesive member including a hollow portion; and a vibration device disposed at or within the hollow portion of the adhesive member to vibrate the display member. The apparatus may be a display device.

[0009] In another aspect, the apparatus according to some embodiments of the present disclosure includes: a display member configured to display video; a support frame; a vibration device disposed between the display member and the support frame; and an adhesive member disposed between the support frame and the display member, the adhesive member being spaced apart from the vibration device. The apparatus may be a display device.

[0010] According to embodiments of the present disclosure, an apparatus can be provided that vibrates a display member to output sound in the forward direction of the display member and thus enhances sound characteristics and / or sound pressure level characteristics.

[0011] Other systems, methods, features, and advantages will be or will become apparent to those skilled in the art upon review of the following drawings and detailed description. All such additional systems, methods, features, and advantages are intended to be included within this specification, within the scope of this disclosure, and protected by the appended claims. Nothing in this section should be construed as limiting these claims. Other aspects and advantages are discussed below in conjunction with embodiments of this disclosure.

[0012] It should be understood that both the foregoing description and the following description of this disclosure are exemplary and explanatory, and are intended to provide further explanation of the claimed disclosure.

[0013] Postscript:

[0014] Appendix 1. An electronic device, the electronic device comprising:

[0015] Display component, the display component being configured to display an image;

[0016] A vibration device located on the rear surface of the display component;

[0017] A support frame is located on the rear surface of the vibrating device; and

[0018] An adhesive member is provided between the rear surfaces of the support frame and the display member, and the adhesive member and / or the support frame are spaced apart from the vibration device.

[0019] The vibration device is configured to vibrate in a direction toward the display component.

[0020] Note 2. The electronic device according to Note 1, wherein the vibration device causes the display component to vibrate to output one or more of sound and tactile feedback.

[0021] Appendix 3. The electronic device according to Appendix 1, wherein the rear surface of the display member and the support frame are spaced apart by the adhesive member to form a gap space between the rear surface of the display member and the support frame, and

[0022] The vibration device is installed in the gap space.

[0023] Appendix 4. The electronic device according to Appendix 1, wherein the vibration device includes a first vibration device and a second vibration device, and

[0024] The first vibration device and the second vibration device are both disposed between the rear surface of the display component and the support frame.

[0025] Note 5. The electronic device according to Note 4, wherein the first vibrating device and the second vibrating device are spaced apart from each other by a gap, the gap being 35% to 40% of the length of the first vibrating device or the second vibrating device.

[0026] Appendix 6. The electronic device according to Appendix 4, wherein the display component includes a first display area, a second display area, and a third display area between the first display area and the second display area, and

[0027] The first vibration device and the second vibration device face the first display area.

[0028] Note 7. The electronic device according to Note 3, wherein the side surface of the adhesive member has a curved shape facing the gap space.

[0029] Note 8. The electronic device according to Note 3, wherein the gap space and / or the side surface of the adhesive member surrounding the gap space has a circular or oval shape.

[0030] Appendix 9. An electronic device, the electronic device comprising:

[0031] Display component, the display component being configured to display an image;

[0032] A support frame located on the rear surface of the display component;

[0033] An adhesive member, the adhesive member being between the support frame and the rear surface of the display member, the adhesive member including a hollow portion; and

[0034] A vibration device disposed in the hollow portion of the adhesive member to cause the display member to vibrate.

[0035] Appendix 10. The electronic device according to Appendix 9, wherein the display component includes a first display area, a second display area, and a folded area between the first display area and the second display area, and

[0036] The hollow portion of the adhesive member overlaps with at least one of the first display area and the second display area.

[0037] Note 11. The electronic device according to Note 10, wherein the adhesive member is not disposed in the folded area.

[0038] Note 12. The electronic device according to Note 10, wherein the vibration device comprises:

[0039] A first vibration device and a second vibration device are disposed in the hollow portion of the adhesive member in the region overlapping with the first display area, to cause the first display area of ​​the display member to vibrate; and

[0040] A third vibration device and a fourth vibration device are disposed in the hollow portion of the adhesive member in the region overlapping with the second display area, so as to cause the second display area of ​​the display member to vibrate.

[0041] Note 13. The electronic device according to Note 6 or 12, wherein the total area of ​​the area of ​​the first vibration device and the area of ​​the second vibration device is equal to 25% to 31% of the first display area.

[0042] Note 14. The electronic device according to Note 6 or 12, wherein the distance between each of the first vibration device and the second vibration device and the support frame is equal to 0.5 to 3 times the thickness of each of the first vibration device and the second vibration device.

[0043] Note 15. The electronic device according to Note 6 or 12, wherein the width of the adhesive member corresponding to the first display area is equal to 10% to 30% of the width of the first display area in a first direction, and a portion of the adhesive member overlaps with the first display area.

[0044] Note 16. The electronic device according to any one of Notes 4 to 6 and 12, the electronic device further comprising a spacer disposed between the rear surface of the display member and the support frame and between the first vibration device and the second vibration device.

[0045] Note 17. The electronic device according to any one of Notes 4 to 6 and 12, the electronic device further comprising one or more pad members disposed between the support frame and at least one of the first vibration device and the second vibration device.

[0046] Note 18. The electronic device according to Note 17, wherein each of the one or more pad members includes a material configured to absorb or modulate vibrations.

[0047] Note 19. The electronic device according to any one of Notes 4 to 6 and 12, wherein each of the first vibration device and the second vibration device comprises a dual piezoelectric crystal structure.

[0048] Note 20. The electronic device according to any one of Notes 1 to 6 and 12, wherein the vibrating device comprises a circular shape, an oval shape, or a rounded shape.

[0049] Note 21. The electronic device according to any one of Notes 1 to 12, wherein the vibration device is connected to the rear surface of the display member via a connecting member.

[0050] Appendix 22. The electronic device according to any one of Appendices 1 to 12, wherein the vibration device comprises:

[0051] First electrode section;

[0052] The second electrode portion; and

[0053] A vibrating component is disposed between the first electrode component and the second electrode component.

[0054] Note 23. The electronic device according to Note 22, wherein the vibrating part comprises at least one or more of piezoelectric inorganic materials and piezoelectric organic materials.

[0055] Appendix 24. The electronic device according to Appendix 22, wherein the vibration device comprises a plurality of first portions and a plurality of second portions disposed between the plurality of first portions, the plurality of second portions comprising an organic material, and

[0056] Each of the plurality of first parts comprises one or more of piezoelectric inorganic materials and piezoelectric organic materials.

[0057] Note 25. The electronic device according to any one of Notes 1 to 12, wherein the display component comprises:

[0058] Front components;

[0059] Rear components; and

[0060] A display panel is disposed between the front member and the rear member, the display panel including pixels configured to display images, and

[0061] The vibration device is connected to the rear component.

[0062] Appendix 26. An electronic device, the electronic device comprising:

[0063] Display component, the display component being configured to display video;

[0064] Supporting framework;

[0065] A vibration device, wherein the vibration device is disposed between the display component and the support frame; and

[0066] An adhesive component is disposed between the support frame and the display component, and the adhesive component is spaced apart from the vibration device.

[0067] Note 27. The electronic device according to Note 26, wherein the vibration device is spaced apart from the support frame.

[0068] Note 28. The electronic device according to Note 26, wherein the vibration device is configured to output audio information synchronized with the video.

[0069] Note 29. The electronic device according to Note 26, wherein the area of ​​the vibrating device is equal to 25% to 31% of the display area.

[0070] Note 30. The electronic device according to any one of Notes 26 to 29, wherein the vibration device comprises:

[0071] A first vibration device, the first vibration device overlapping with a first display area of ​​the display component; and

[0072] The second vibration device overlaps with the second display area of ​​the display component.

[0073] Appendix 31. The electronic device according to Appendix 30, wherein the display member includes a third display region between the first display region and the second display region, and the display member is configured to bend at the third display region, and

[0074] The first vibration device and the second vibration device do not overlap with the third display area.

[0075] Note 32. The electronic device according to any one of Notes 26 to 29, wherein the adhesive member has a closed-loop shape surrounding the vibrating device.

[0076] Note 33. The electronic device according to any one of Notes 26 to 29, wherein the adhesive member, the support frame and the display member form a sound space, and the vibration device is disposed in the sound space.

[0077] Note 34. The electronic device according to any one of Notes 26 to 29, wherein the vibration device comprises:

[0078] First cover section;

[0079] First adhesive layer;

[0080] First electrode section;

[0081] Vibrating part;

[0082] Second electrode section;

[0083] Second adhesive layer; and

[0084] The second cover part,

[0085] The vibrating component is disposed between the first electrode portion and the second electrode portion.

[0086] The first adhesive layer is disposed between the first cover portion and the first electrode portion, and

[0087] The second adhesive layer is disposed between the second electrode portion and the second cover portion.

[0088] Note 35. The electronic device according to Note 34, wherein the first electrode portion, the vibrating portion and the second electrode portion are encapsulated by the first adhesive layer and the second adhesive layer.

[0089] Note 36. The electronic device according to any one of Notes 26 to 29, wherein the vibration device is configured to vibrate in a direction toward the display member. Attached Figure Description

[0090] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this application. The drawings illustrate aspects and embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0091] Figure 1 An apparatus according to an embodiment of the present disclosure is illustrated.

[0092] Figure 2 It is along Figure 1 A cross-sectional view taken from the A-A' line.

[0093] Figure 3 It is along Figure 1 A cross-sectional view taken from the B-B' line.

[0094] Figure 4 A vibration device according to an embodiment of the present disclosure is illustrated.

[0095] Figure 5 Examples Figure 4 The vibrating part is shown.

[0096] Figures 6A to 6E The vibration section of a vibration device according to an embodiment of the present disclosure is illustrated.

[0097] Figure 7 yes Figure 2 An enlarged view of the area "B1" shown.

[0098] Figure 8 It is used to describe the settings Figure 1 A plan view of the adhesive component and the vibration device at the first display area of ​​the display component shown.

[0099] Figure 9 yes Figure 2 Another enlarged view of the area "B1" shown.

[0100] Figure 10 It is used to describe the settings Figure 8 A plan view of the adhesive component and the vibration device at the first display area of ​​the display component shown.

[0101] Figure 11 yes Figure 2 Another enlarged view of the area "B1" shown.

[0102] Figure 12 yes Figure 2 Another enlarged view of the area "B1" shown.

[0103] Figure 13 yes Figure 12 The plan view of the adhesive component is shown.

[0104] Figure 14 yes Figure 2 Another enlarged view of the area "B1" shown.

[0105] Figure 15 yes Figure 14 Floor plan.

[0106] Figure 16 yes Figure 2 Another enlarged view of the area "B1" shown.

[0107] Figure 17 This is a plan view illustrating an adhesive member and a vibration device disposed at a first display area of ​​a display member in a device according to another embodiment of the present disclosure.

[0108] Figure 18 The average sound pressure level characteristics in a device according to an embodiment of the present disclosure are illustrated as the total area ratio of the size of the vibrating device to the size of the display component.

[0109] Figures 19A to 19D The vibration patterns of the device according to embodiments of the present disclosure and the vibration patterns of experiments 1 to 3 are illustrated.

[0110] Throughout the accompanying drawings and detailed description, unless otherwise stated, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustrative purposes, and convenience, the dimensions, lengths, and thicknesses of layers, regions, and elements, and their depictions, may be exaggerated. Detailed Implementation

[0111] Reference will now be made to embodiments of this disclosure in detail, examples of which are illustrated in the accompanying drawings. In the following description, detailed descriptions of well-known functions or configurations may be omitted for brevity where such obscurity might unnecessarily obscure the essential points of this disclosure. The progression of the described processing steps and / or operations is exemplary; however, the order of steps and / or operations is not limited to the order set forth herein, and variations may be made except for steps and / or operations that must occur in a specific order.

[0112] Unless otherwise stated, similar reference numerals may refer to similar elements throughout the text, even if they are shown in different figures. In one or more aspects, the same element (or element with the same name) in different figures may have the same or substantially the same function and properties, unless otherwise stated. The names of the various elements used in the following description are chosen for convenience only and may therefore differ from those used in actual products.

[0113] The advantages and features of this disclosure and its implementation methods are illustrated by referring to the embodiments described in the accompanying drawings. However, this disclosure may be implemented in different forms and should not be construed as limited to the described embodiments. Rather, these embodiments are provided to make this disclosure thorough and complete, and to fully convey the scope of this disclosure to those skilled in the art. Furthermore, this disclosure is defined only by the scope of the claims and their equivalents.

[0114] The shapes, dimensions, areas, ratios, angles, and quantities disclosed in the accompanying drawings used to describe embodiments of this disclosure are merely examples, and therefore, this disclosure is not limited to the details shown.

[0115] When terms such as “comprising,” “having,” “containing,” “including,” “constituting,” “forming,” “comprise,” “formed from,” etc., are used, one or more other elements may be added unless terms such as “only” are used. The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure. The terminology used herein is for the purpose of describing exemplary embodiments only and is not intended to limit the scope of this disclosure. Singular terms may include plural forms unless the context clearly indicates otherwise. The word “exemplary” is used to indicate that it is used as an example or illustration. An implementation is an exemplary implementation. An aspect is an exemplary aspect. Any implementation described herein as an “example” is not necessarily to be construed as preferred or advantageous over other implementations.

[0116] In one or more aspects, a component, feature, or corresponding information (e.g., level, range, dimension, size, etc.) is interpreted as including a range of errors or tolerances, even if no explicit description of such a range of errors or tolerances is provided. An error or tolerance range can be caused by a variety of factors (e.g., process factors, internal or external shocks, noise, etc.). Furthermore, the term "may" encompasses all the meanings of the term "able to".

[0117] When describing positional relationships, terms such as "above," "on top," "below," "over," "below," "beneath," "near," "close to," or "adjacent to," "beside," or "close to" are used to describe the positional relationship between two components. Unless more restrictive terms such as "immediately," "directly," or "adjacent to" are used, one or more other components may be located between the two components. For example, when a structure is described as being positioned "above," "below," "over," "below," "beneath," "near," "beside," or "close to," "adjacent to," or "close to" another structure, this description should be interpreted to include situations where the structures are in contact with each other and where one or more additional structures are placed or interposed between them. Furthermore, the terms "front," "back," "behind," "left," "right," "top," "bottom," "down," "upward," "above," "down," "high," "low," "column," "row," "vertical," and "horizontal" refer to any frame of reference.

[0118] When describing temporal relationships, if the temporal order is described as such as "after", "following", "next", "before", "prior to", etc., it may include cases that are discontinuous or not sequential, unless more restrictive terms such as "exactly", "immediately" or "directly" are used.

[0119] It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element may be a second element without departing from the scope of this disclosure, and similarly, a second element may be referred to as a first element. Furthermore, first element, second element, etc., may be named arbitrarily as is convenient for those skilled in the art without departing from the scope of this disclosure. The terms "first," "second," etc., may be used to distinguish components from each other, but the function or structure of a component is not limited by the serial number preceding the component or the component name.

[0120] In describing the elements of this disclosure, the terms “first,” “second,” “A,” “B,” “(a),” “(b),” etc., may be used. These terms are intended to distinguish corresponding elements from other elements, and the basis, order, or number of corresponding elements shall not be limited by these terms.

[0121] Unless otherwise stated, when describing an element or layer as “connected,” “joined,” or “attached” to another element or layer, the element or layer may not only be directly connected, joined, or attached to the other element or layer, but also indirectly connected, joined, or attached to the other element or layer, and one or more intermediate elements or layers may be “placed” or “inserted” between the elements or layers.

[0122] Unless otherwise stated, when describing a component or layer as "contacting" or "overlapping" with another component or layer, the component or layer may not only directly contact or overlap with the other component or layer, but also indirectly contact or overlap with the other component or layer, and one or more intermediate components or layers may be "set" or "inserted" between the components or layers.

[0123] The term "at least one" should be understood to include any and all combinations of one or more of the related listed items. For example, "at least one of the first, second, and third items" means a combination of two or more items proposed from the first, second, and third items, as well as only one of the first, second, or third items.

[0124] The expressions "first element," "second element," and " / or" "third element" should be understood as one of the first, second, and third elements, or any or all combinations of the first, second, and third elements. For example, A, B, and / or C can refer to only A; only B; only C; any or some combinations of A, B, and C; or all of A, B, and C. Furthermore, the expression "element A / element B" can be understood as element A and / or element B.

[0125] In one or more aspects, the terms "between" and "among" may be used interchangeably for convenience only, unless otherwise stated. For example, the expression "between multiple elements" can be understood as "among multiple elements". In another example, the expression "among multiple elements" can be understood as "between multiple elements". In one or more examples, the number of elements may be two. In one or more examples, the number of elements may be more than two.

[0126] In one or more aspects, the phrases “mutual” and “each other” may be used interchangeably for convenience only, unless otherwise stated. For example, the expression “mutually different” can be understood as “different from each other”. In another example, the expression “different from each other” can be understood as “different from each other”. In one or more examples, the number of elements involved in the foregoing expression may be two. In one or more examples, the number of elements involved in the foregoing expression may be more than two.

[0127] In one or more aspects, the phrases “one or more of…” and “one or more of…” may be used interchangeably for convenience only, unless otherwise stated.

[0128] Features of the various embodiments of this disclosure can be partially or entirely linked or combined with each other, and can interoperate, link, or drive each other in various ways. Embodiments of this disclosure can be performed independently of each other, or can be performed together in an interdependent or related relationship. In one or more aspects, components of each device according to the various embodiments of this disclosure are operatively linked and configured.

[0129] Unless otherwise specified, the terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the exemplary embodiments pertain. It should also be understood that terms (e.g., those defined in common dictionaries) shall be interpreted as having a meaning consistent with their meaning in the context of the relevant field, and shall not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0130] Various embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. Furthermore, for ease of description, the scale, dimensions, dimensions, and thickness of each element shown in the drawings differ from the actual scale, dimensions, dimensions, and thickness; therefore, the scope is not limited to the scale, dimensions, dimensions, and thickness shown in the drawings.

[0131] Figure 1 An apparatus according to an embodiment of the present disclosure is illustrated. Figure 2 It is along Figure 1 A cross-sectional view taken from line A-A'. Figure 3 It is along Figure 1 The cross-sectional view taken by line B-B'.

[0132] Reference Figures 1 to 3 The device 10 according to the embodiments of the present disclosure may be a display device, but the embodiments of the present disclosure are not limited thereto.

[0133] Display devices may include a display panel and a driver for driving the display panel, the display panel including a plurality of pixels configured for black / white or color images. Each pixel may be a sub-pixel that realizes one of a plurality of colors constituting a color image. Devices according to embodiments of the present disclosure may include assemblies of electronic equipment or assemblies (or assemblies of devices) such as: notebook computers, televisions, computer monitors, equipment including automotive equipment or equipment for other types of vehicles, or mobile electronic devices such as smartphones, foldable phones, rollable phones, or electronic tablets, which are complete products (or end products) including liquid crystal display panels or organic light-emitting display panels.

[0134] The device 10 according to embodiments of the present disclosure may include a display component 100, a vibration device 200, a support frame 300, and an adhesive component 400.

[0135] Display component 100 can display images, such as electronic images, digital images, still images, or video images. For example, display component 100 may include a display panel 110 that can display images by emitting light.

[0136] The display panel 110 can be a curved display panel or one of all types of display panels such as a liquid crystal display panel, an organic light-emitting display panel, a quantum dot light-emitting display panel, a micro light-emitting diode display panel, and an electrophoretic display panel. The display panel 110 can be a flexible display panel. For example, the display panel 110 can be a flexible light-emitting display panel, a flexible electrophoretic display panel, a flexible electrowetting display panel, a flexible light-emitting diode display panel, or a flexible quantum dot light-emitting display panel, but the embodiments of this disclosure are not limited thereto.

[0137] The display panel 110 according to embodiments of the present disclosure may include a display area for displaying images based on the driving of a plurality of pixels. The display panel 110 may include a non-display area surrounding the display area, but embodiments of the present disclosure are not limited thereto. The display area may include a first display area A1, a second display area A2, and a third display area A3 located between the first display area A1 and the second display area A2. For example, for a first direction X, the first display area A1 may be a left display area, the second display area A2 may be a right display area, and the third display area A3 may be a central (or intermediate) display area or a folded display area. The display member 100 or the display panel 110 may be bent or folded relative to the third display area A3 with a specific curvature; therefore, the device 10 according to embodiments of the present disclosure may be a foldable device or a flexible device. Hereinafter, examples of devices 10 being foldable devices will be described.

[0138] The display panel 110 according to embodiments of the present disclosure may include a first substrate, a second substrate, and a liquid crystal layer. The first substrate may be an upper substrate or a thin-film transistor (TFT) array substrate. For example, the display panel 110 may include: a first substrate including a TFT, the TFT being a switching element for adjusting the light transmittance of each pixel; a second substrate including a color filter and / or a black matrix, etc.; and a liquid crystal layer formed between the first substrate and the second substrate. For example, the first substrate may include a pixel array portion (or a display portion or a display area), the pixel array portion (or display portion or display area) including a plurality of pixels respectively disposed in a plurality of pixel areas configured at intersections between a plurality of gate lines and / or a plurality of data lines. Each of the plurality of pixels may include a TFT connected to the gate line and / or data line, a pixel electrode connected to the TFT, and a common electrode disposed adjacent to the pixel electrode and provided with a common voltage.

[0139] The first substrate may further include a pad portion disposed on its first periphery (or first non-display portion) and a gating drive circuit disposed on its second periphery (or second non-display portion).

[0140] The pad portion can transmit signals provided from the outside to the pixel array portion and / or the gating drive circuit. For example, the pad portion may include multiple data pads connected to multiple data lines via multiple data link lines and / or multiple gating input pads connected to the gating drive circuit via gating control signal lines. For example, the size of the first substrate may be larger than the size of the second substrate, but embodiments of this disclosure are not limited thereto.

[0141] The gating drive circuit can be embedded (or integrated) into the second periphery of the first substrate and can be connected to multiple gating lines. For example, the gating drive circuit can be implemented using a shift register including a transistor formed by the same process as that used for TFTs disposed in the pixel region. According to another embodiment of this disclosure, the gating drive circuit can be implemented as an integrated circuit (IC) and can be included in the panel drive circuit without being embedded in the first substrate.

[0142] The second substrate can be a lower substrate or a color filter array substrate. For example, the second substrate may include a pixel pattern (or pixel-defined pattern) and a color filter layer, the pixel pattern including an opening region overlapping with a pixel region formed in the first substrate, the color filter layer being formed at the opening region. The size of the second substrate may be smaller than the size of the first substrate, but embodiments of this disclosure are not limited thereto. For example, the second substrate may overlap with a portion of the first substrate other than the first periphery. The second substrate can be bonded to a portion of the first substrate other than the first edge using a sealant, with the liquid crystal layer located between the second substrate and the first substrate.

[0143] A liquid crystal layer may be disposed between a first substrate and a second substrate. The liquid crystal layer may include a liquid crystal containing liquid crystal molecules, wherein the alignment orientation of the liquid crystal molecules is changed based on an electric field generated by a data voltage applied to the pixel electrode of each pixel and a common voltage.

[0144] The display panel 110 according to the embodiments of the present disclosure can drive the liquid crystal layer based on the electric field generated in each pixel by the data voltage and common voltage applied to each pixel, and thus can display images based on light passing through the liquid crystal layer.

[0145] In another embodiment of the display panel 110 according to the present disclosure, the first substrate can be implemented as a color filter array substrate, and the second substrate can be implemented as a TFT array substrate. For example, the display panel 110 according to another embodiment of the present disclosure can have the flip-type of the display panel 110 according to the embodiment of the present disclosure. For example, the pad portion of the display panel 110 according to another embodiment of the present disclosure can be covered by another mechanism or another structure.

[0146] When the display panel 110 is an organic light-emitting display panel, it may include multiple gate lines, multiple data lines, and multiple pixels respectively disposed in multiple pixel regions defined by the intersections of the gate lines and data lines. Furthermore, the display panel 110 may include an array substrate, an organic light-emitting device layer, and an encapsulation portion or encapsulation substrate. The array substrate includes TFTs, which are elements for selectively applying voltage to each pixel. The organic light-emitting device layer is located on the array substrate, and the encapsulation portion or encapsulation substrate is disposed above the array substrate to cover the organic light-emitting device layer. The encapsulation substrate can protect the TFTs and the organic light-emitting device layer from external impacts and can prevent moisture or oxygen from penetrating into the organic light-emitting device layer. Furthermore, the organic light-emitting device layer disposed above the array substrate can be changed to an inorganic light-emitting layer (e.g., a nanoscale material layer, quantum dots, etc.). As another example, the organic light-emitting device layer disposed above the array substrate can be changed to a micro-light-emitting diode.

[0147] The display panel 110 according to embodiments of the present disclosure can display images of a specific type of configuration based on a pixel array portion including an anode electrode, a cathode electrode, and a light-emitting device, and comprising a plurality of pixels, in a manner such as top-emitting, bottom-emitting, or dual-emitting. In the top-emitting type, visible light emitted from the pixel array portion can illuminate the substrate in a forward direction to allow image display, while in the bottom-emitting type, visible light emitted from the pixel array portion can illuminate the substrate in a rearward region to allow image display.

[0148] The display panel 110 according to embodiments of the present disclosure may include a pixel array portion disposed above a substrate (or flexible substrate). The pixel array portion may include a plurality of pixels that display an image based on signals provided through each signal line. The signal lines may include gating lines, data lines, and pixel drive power lines, etc., but embodiments of the present disclosure are not limited thereto.

[0149] The flexible substrate of the display panel 110 may include plastic materials, but the embodiments of this disclosure are not limited thereto. The flexible substrate of the display panel 110 may include polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), polyethersulfone (PES), polyarylate (PAR), polysulfone (PSF), and cyclic olefin copolymer (COC), etc., but the embodiments of this disclosure are not limited thereto, and the flexible substrate may be configured as a thin glass capable of being folded or bent.

[0150] Each of the plurality of pixels may include a pixel circuit layer comprising a driving TFT disposed in a pixel region configured by a plurality of gate lines and / or a plurality of data lines, an anode electrically connected to the driving TFT, a light-emitting device disposed above the anode electrode, and a cathode electrode electrically connected to the light-emitting device.

[0151] The driving TFT can be configured at the transistor region of each pixel region disposed on the substrate. The driving TFT may include a gate electrode, a gate insulating layer, a semiconductor layer, a source electrode, and a drain electrode. The semiconductor layer of the driving TFT may include silicon such as amorphous silicon (a-Si), polycrystalline silicon (poly-Si), or low-temperature polycrystalline silicon, or may include oxides such as indium gallium zinc oxide (IGZO), but the embodiments disclosed herein are not limited thereto.

[0152] The anode electrode (or pixel electrode) can be set in the opening area of ​​each pixel area and can be electrically connected to the driving TFT.

[0153] The light-emitting device according to embodiments of the present disclosure may include an organic light-emitting device layer disposed at an anode electrode. The organic light-emitting device layer may be configured such that pixels emit light of the same color (e.g., white light) for each pixel or emit light of different colors (e.g., red, green, and blue light) for each pixel. A cathode electrode (or common electrode) may be commonly connected to the organic light-emitting device layer disposed at each pixel region. For example, the organic light-emitting device layer may include a single structure comprising the same color for each pixel, or it may include a stacked structure comprising two or more structures. As another embodiment of the present disclosure, the organic light-emitting device layer may include a stacked structure for each pixel, the stacked structure comprising two or more structures comprising one or more different colors. The two or more structures comprising one or more different colors may be configured with one or more or a combination of blue, red, yellow-green, and green, but embodiments of the present disclosure are not limited thereto. For example, combined embodiments may be blue and red, red and yellow-green, red and green, and red / yellow / green, etc., but embodiments of the present disclosure are not limited thereto. Furthermore, embodiments of the present disclosure may be applied regardless of their stacking order. A stacked structure comprising two or more structures having the same color or one or more different colors may further include a charge generation layer between the two or more structures. The charge generation layer may have a PN junction structure and may include N-type charge generation layers and P-type charge generation layers.

[0154] According to another embodiment of the present disclosure, the light-emitting device may include a miniature light-emitting diode (LED) device electrically connected to each of the anode electrode and the cathode electrode. The miniature LED device may be an IC (integrated circuit) type or a chip type LED. The miniature LED device may include a first terminal electrically connected to the anode electrode and a second terminal electrically connected to the cathode electrode. The cathode electrode may be commonly connected to the second terminal of the miniature LED device disposed in each pixel region. As another embodiment of the present disclosure, the light-emitting device may include a quantum dot light-emitting layer, but the embodiments of the present disclosure are not limited thereto.

[0155] An encapsulation portion can be formed above the substrate to surround the pixel array portion, thus preventing oxygen or water from penetrating into the light-emitting device layer of the pixel array portion. The encapsulation portion according to embodiments of the present disclosure can be formed as a multilayer structure in which organic material layers and inorganic material layers are alternately stacked, but embodiments of the present disclosure are not limited thereto. The inorganic material layer prevents oxygen or water from penetrating into the light-emitting device layer of the pixel array portion. The organic material layer can be formed to have a thickness relatively thicker than the inorganic material layer in order to cover particles that appear during the manufacturing process, but embodiments of the present disclosure are not limited thereto. For example, the encapsulation portion may include a first inorganic layer, an organic layer above the first inorganic layer, and a second inorganic layer above the organic layer. The organic layer may be a particle covering (or overlay) layer, but the terminology is not limited thereto. Hereinafter, the display panel 110 will be described as an example of an electroluminescent display panel, but embodiments of the present disclosure are not limited thereto.

[0156] The display component 100 according to embodiments of the present disclosure may further include a front component 130 and a rear component 170.

[0157] The front member 130 may be disposed on the front surface (or forward-facing surface) of the display panel 110. The front member 130 can transmit the image displayed by the display panel 110 to the outside and can protect the display panel 110. For example, the front member 130 can protect the display panel 110 from external impacts or stresses and can prevent damage. The front member 130 can be implemented using a cover based on a foldable or bendable elastic plastic to achieve the thinness and flexibility of the device 10. For example, the front member 130 can be a cover window or window cover, but embodiments of this disclosure are not limited thereto.

[0158] According to embodiments of this disclosure, a protective film may be further provided above the front surface of the front member 130. The front member 130 may be formed with a thickness of tens of μm, thus the front member 130 may be damaged by minor external impacts or continuous folding. The protective film can protect the front member 130 from compressive and tensile stresses based on external impacts or continuous folding. Furthermore, the protective film can prevent glass powder or fragments from scattering when glass powder or fragments are generated due to damage to the front member 130 from external impacts or stress. For example, the protective film may include a film such as polyethylene terephthalate, but embodiments of this disclosure are not limited thereto. For example, the protective film may include triacetyl cellulose, cyclic olefin polymers (COP), or combinations thereof.

[0159] According to another embodiment of this disclosure, a touch panel configured with a touch sensor may also be disposed between the display panel 110 and the front member 130. For example, the touch panel may include a touch electrode layer disposed above the display panel 110 and include touch electrodes for sensing user touches applied to the display panel 110. The touch electrode layer may sense capacitance changes of the touch electrodes based on user touches. For example, a mutual capacitance type with multiple touch driving electrodes and multiple touch sensing electrodes cross-configured or a self-capacitance type with only multiple touch sensing electrodes may be applied, and an adhesive layer may be disposed on the top surface (or upper surface) or bottom surface (or lower surface), and may be attached and fixed to the upper or lower member. The touch panel may be disposed above the encapsulation portion of the display panel 110, or may be disposed on the rear surface of the pixel array portion or within the pixel array portion.

[0160] The rear member 170 may be disposed below or behind the display panel 110. The rear member 170 may be configured or set to support the display panel 110. For example, the rear member 170 may additionally support a flexible substrate such that the flexible substrate on which the display panel 110 is disposed is not covered and can protect the components disposed on the flexible substrate from external moisture, heat and impact.

[0161] The rear member 170 may include a metallic material. For example, the rear member 170 may include a metallic material such as stainless steel (SUS), which includes other materials such as nickel (Ni), iron (Fe), aluminum (Al)-based, or magnesium (Mg), but embodiments of this disclosure are not limited thereto. For example, when the rear member 170 includes stainless steel (SUS), stainless steel (SUS) can have high resilience and high stiffness (e.g., shape memory metal), so it can maintain high stiffness even when the thickness of the rear member 170 is reduced. Therefore, the rear member 170 can support the display panel 110 and can reduce the overall thickness of the device 10, thus reducing the radius of curvature of the folding area. For example, the rear member 170 is not limited thereto, and the rear member 170 may include polymers such as polymethyl methacrylate (PMMA), polycarbonate (PC), polyvinyl alcohol (PVA), acrylonitrile-butadiene-styrene (ABS), polyethylene terephthalate (PET), silicone, or polyurethane (PU).

[0162] The rear member 170 can be separated in the area overlapping with the third display area A3 of the display panel 110. For example, the rear member 170 can be configured to overlap with each of the first display area A1 and the second display area A2 of the display panel 110, in addition to the third display area A3.

[0163] The display component 100 according to the embodiments of the present disclosure may further include a polarizing component 120 located between the front component 130 and the display panel 110.

[0164] The polarizing member 120 polarizes light emitted from the display panel 110 at a polarization angle. The polarizing member 120 can emit light polarized at the polarization angle to the outside. The polarizing member 120 can prevent the reflection of external light other than light polarized at the polarization angle. For example, the polarizing member 120 can only transmit light traveling in the polarization direction from the outside and can absorb other light. Light passing through the polarizing member 120 can be reflected by the display panel 110 and can be re-incident on the polarizing member 120. At this time, the polarization direction of the reflected external light can change, so the light re-incident on the polarizing member 120 can be absorbed by the polarizing member 120 and not output to the outside, thereby preventing the reflection of external light. Therefore, the polarizing member 120 can prevent the reflection of light input from the outside, ensuring the visibility of the display panel 110.

[0165] According to embodiments of this disclosure, the polarization member 120 may include a circular polarizer. When the polarization member 120 is a circular polarizer, a phase retardation film (or phase delay film) may also be configured between the display panel 110 and the polarization member 120. For example, a λ / 4 phase delay film may be further configured between the polarization member 120 and the display panel 110.

[0166] According to embodiments of this disclosure, the polarizing member 120 can be attached to the display panel 110 via a first adhesive member 115. The front member 130 can be attached to the polarizing member 120 via a second adhesive member 125.

[0167] The display component 100 according to embodiments of the present disclosure may further include an intermediate component 150 between the display panel 110 and the rear component 170.

[0168] The intermediate member 150 can be attached to the rear surface (or back side surface) of the display panel 110 via the third adhesive member 145, thus primarily supporting the display panel 110. For example, the intermediate member 150 can support the display panel 110 together with the rear member 170. When the display member 100 (or display panel 110) is a foldable display member, the intermediate member 150 can maintain a constant curvature of the display member 100 (or display panel 110) when the foldable display member is folded in a multi-fold manner and can prevent creases or ridges formed in the top surface (or upper surface) of the display panel 110. For example, the intermediate member 150 can be a first rear support member, a first support member, a first support substrate, or a first support plate, but embodiments of this disclosure are not limited thereto.

[0169] The intermediate component 150 according to embodiments of the present disclosure may include polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), polyethersulfone (PES), polyarylate (PAR), polysulfone (PSF), and cyclic olefin copolymer (COC), etc., but embodiments of the present disclosure are not limited thereto, and the intermediate component 150 may be configured as a thin glass capable of being folded or bent.

[0170] The rear member 170 can be attached to the rear surface (or back side surface) of the intermediate member 150 via the fourth adhesive member 155, and thus can support the display panel 110 together with the intermediate member 150. For example, the rear member 170 can be a second rear support member, a second support member, a second support substrate, or a second support plate, but the embodiments of this disclosure are not limited thereto.

[0171] A vibration device 200 may be disposed on the rear surface of the display member 100. The vibration device 200 may vibrate the display member 100 at the rear surface of the display member 100 to provide sound S and / or tactile feedback to the user based on the vibration of the display member 100. According to embodiments of this disclosure, the vibration device 200 may vibrate based on a vibration drive signal synchronized with the image displayed on the display member 100 to cause the display member 100 to vibrate. For example, the vibration device 200 may convert the display member 100 into a large speaker by controlling the vibration device 200 to vibrate in a direction toward the display member (e.g., the vibration device 200 may move back and forth in a direction perpendicular to the rear of the display member so that the display member also vibrates accordingly). Furthermore, the vibration device 200 may output audio information synchronized with the video displayed by the display member.

[0172] The vibration device 200 can be configured to overlap with one or more of the first display area A1 and the second display area A2 in the display member 100 or the device 10, excluding the third display area A3 (for example, since the vibration device 200 is not located in the third display area A3, this can assist the bending of the device 10 and protect the vibration device 200 from damage or breakage).

[0173] The vibration device 200 according to embodiments of the present disclosure may include a plurality of vibration devices 210, 220, 230 and 240. For example, the vibration device 200 may include a first to a fourth vibration device 210, 220, 230 and 240.

[0174] The first vibration device 210 and the second vibration device 220 can be disposed on the rear surface of the display member 100 to overlap with the first display area A1. For example, the first vibration device 210 and the second vibration device 220 can be disposed on the rear surface of the rear member 170 or connected to the rear surface of the rear member 170 to overlap with the first display area A1.

[0175] The third vibration device 230 and the fourth vibration device 240 may be disposed on the rear surface of the display member 100 to overlap with the second display area A2. For example, the third vibration device 230 and the fourth vibration device 240 may be disposed on the rear surface of the rear member 170 or connected to the rear surface of the rear member 170 to overlap with the second display area A2.

[0176] Each of the first vibration device 210 to the fourth vibration device 240 may include a piezoelectric material (or a piezoelectric device). The first vibration device 210 to the fourth vibration device 240 may be configured as a piezoelectric ceramic material.

[0177] The support frame 300 can be disposed on the rear surface of the display component 100 and can cover the vibration device 200. The support frame 300 can additionally support the display component 100.

[0178] The support frame 300 may include a metallic material. For example, the support frame 300 may include a metallic material such as stainless steel (SUS), which includes other materials such as nickel (Ni), iron (Fe), aluminum (Al)-based, or magnesium (Mg), but embodiments of this disclosure are not limited thereto. The support frame 300 can dissipate heat generated by driving the display member 100 and / or by driving the vibration device 200. For example, the support frame 300 may be an intermediate frame or an intermediate plate, but embodiments of this disclosure are not limited thereto.

[0179] An adhesive member 400 may be disposed or connected between the rear surface of the display member 100 (or the rear member 170) and the support frame 300. For example, the adhesive member 400 may be configured to connect or attach the support frame 300 to the rear surface of the display member 100 based on a partial attachment scheme (or partial bonding method or local bonding scheme) rather than a full-surface attachment scheme (or full-surface bonding method or full-surface attachment scheme). The adhesive member 400 may be connected between the support frame 300 and the rear surface of the display member 100 to be spaced apart from the vibration device 200 and may be configured to surround the vibration device 200. For example, the adhesive member 400 may be connected between the support frame 300 and the rear member 170 of the display member 100 to be spaced apart from the vibration device 200 and may be configured to surround the vibration device 200.

[0180] The adhesive member 400 can be implemented as a patterned shape between the rear surface of the display member 100 and the support frame 300. For example, the adhesive member 400 can be implemented as a quadrilateral or circular strip shape overlapping each of the first display areas A1 and the second display areas A2 of the display panel 110 (e.g., similar to a gasket or O-ring, which helps seal the vibration device 200 and prevents moisture or dust from penetrating). For example, the adhesive member 400 can be implemented to overlap the peripheral portion of each of the first display areas A1 and the second display areas A2 of the display panel 110. The adhesive member 400 can provide a closed sound space between the rear surface of the display member 100 and the support frame 300. The adhesive member 400 can separate at the area overlapping with the third display area A3 of the display panel 110. For example, the adhesive member 400 can be configured to overlap each of the first display areas A1 and the second display areas A2 of the display panel 110 other than the third display area A3 (e.g., to assist in bending of the device 10 and prevent damage to the vibration device 200).

[0181] The adhesive member 400 can be patterned between the rear surface of the display member 100 and the support frame 300. The adhesive member 400 can be partially disposed between the support frame 300 and the rear surface of the display member 100 based on a partial attachment scheme rather than a full-surface attachment scheme, and therefore can include multiple adhesive patterns or hollow portions. Thus, the vibration device 200 can be connected to the rear surface of the display member 100 between the adhesive patterns of the adhesive member 400, or it can be connected to the rear surface of the display member 100 at a hollow portion of the adhesive member 400. Furthermore, the vibration device 200 can be spaced apart from the support frame 300. For example, the vibration device 200 can be spaced apart from each of the support frame 300 and the adhesive member 400.

[0182] The adhesive component 400 according to embodiments of the present disclosure may include pressure-sensitive adhesive (PSA), optically clear adhesive (OCA) or optically clear resin (OCR), epoxy resin, acrylic resin, silicone resin, polyurethane resin, double-sided tape or double-sided foam pad, but embodiments of the present disclosure are not limited thereto.

[0183] The device 10 according to embodiments of the present disclosure may further include a frame 500 and a rear cover 600.

[0184] The assembly frame 500 may be located on the rear surface of the support frame 300 or below the support frame 300. The assembly frame 500 may include a space 520 that accommodates peripheral circuitry 510, such as a battery, and various circuit elements for driving the device 10.

[0185] The rear cover 600 may be disposed on the rear surface of the assembly frame 500 or below the assembly frame 500. The rear cover 600 may be the last surface of the device 10. The rear cover 600 may be made of metal, plastic or glass, but embodiments of this disclosure are not limited thereto.

[0186] According to an embodiment of the present disclosure, the device 10 can output sound S generated by the vibration of the display member 100 in the forward direction of the display member 100, the vibration being caused by the vibration of a vibration device 200 disposed or inserted between the display member 100 and the support frame 300, and the vibration device 200 can be surrounded by an adhesive member 400, thereby enhancing the reliability of the vibration device 200, which includes a piezoelectric material (or piezoelectric device).

[0187] Figure 4 A vibration device according to an embodiment of the present disclosure is illustrated. Figure 5 Examples Figure 4 The vibrating part is shown.

[0188] Reference Figure 4 and Figure 5 The vibration device 200 (or multiple vibration devices 210, 220, 230 and 240) may include a vibration part 210a, a first electrode part 210b and a second electrode part 210c.

[0189] The vibrating portion 210a according to embodiments of the present disclosure may include a piezoelectric material. For example, the vibrating portion 210a may include at least one or more of piezoelectric inorganic materials and piezoelectric organic materials.

[0190] The vibration portion 210a according to embodiments of this disclosure may include a piezoelectric material (or electroactive material) having a piezoelectric effect. For example, a piezoelectric material may have the characteristic that when pressure or torsion is applied to a crystal structure by an external force, a potential difference is generated due to dielectric polarization caused by the change in the relative positions of positive (+) ions and negative (-) ions, and vibration is generated by an electric field based on the voltage applied thereto. The vibration portion 210a may be referred to by terms such as vibration layer, piezoelectric layer, piezoelectric material layer, electroactive layer, piezoelectric material portion, electroactive portion, piezoelectric structure, piezoelectric composite layer, etc., but the terminology is not limited thereto.

[0191] The vibration device 200 or vibration section 210a according to embodiments of this disclosure may include a ceramic-based material for achieving relatively high vibrations, or may include piezoelectric ceramics having a perovskite-based crystal structure. The perovskite crystal structure may have both piezoelectric and inverse piezoelectric effects, and may be an oriented plate-like structure.

[0192] According to embodiments of this disclosure, the vibration device 200 or the vibration section 210a may include a lead zirconate titanate (PZT)-based material containing lead (Pb), zirconium (Zr), and titanium (Ti), or may include a nickel zirconate niobate lead zirconate niobate (PZNN)-based material containing lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but embodiments of this disclosure are not limited thereto. In another embodiment, the vibration device 200 or the vibration section 210a may include at least one of CaTiO3, BaTiO3, and SrTiO3 that does not contain Pb, but embodiments of this disclosure are not limited thereto.

[0193] The first electrode portion 210b may be disposed on the first surface (or upper surface) of the vibrating portion 210a and may be electrically connected to the first surface of the vibrating portion 210a. The second electrode portion 210c may be disposed on a surface different from the first surface of the vibrating portion 210a. For example, the second electrode portion 210c may be disposed on the second surface (or lower surface) of the vibrating portion 210a and may be electrically connected to the second surface of the vibrating portion 210a. For example, the vibrating portion 210a may be polarized (or bipolarized) by applying a specific voltage to the first electrode portion 210b and the second electrode portion 210c in a specific temperature atmosphere or a temperature atmosphere changing from high temperature to room temperature, but the embodiments of this disclosure are not limited thereto.

[0194] The first electrode portion 210b may have a single electrode shape, wherein the first electrode portion 210b is disposed on the entire first surface of the vibrating portion 210a or spans the entire first surface of the vibrating portion 210a. According to embodiments of the present disclosure, the first electrode portion 210b may include a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the transparent or semi-transparent conductive material may include indium tin oxide (ITO) or indium zinc oxide (IZO), but embodiments of the present disclosure are not limited thereto. The opaque conductive material may include aluminum (Al), copper (Cu), gold (Au), molybdenum (Mo), magnesium (Mg), or alloys thereof, but embodiments of the present disclosure are not limited thereto.

[0195] The second electrode portion 210c may be disposed on a second surface (or rear surface or back side surface) of the vibrating portion 210a that is opposite to or different from the first surface, and may be electrically connected to the second surface of the vibrating portion 210a. For example, the second electrode portion 210c may have a single electrode shape, wherein the second electrode portion 210c is disposed on or across the entire second surface of the vibrating portion 210a. According to embodiments of the present disclosure, the second electrode portion 210c may include a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the second electrode portion 210c may include the same material as the first electrode portion 210b. As another embodiment of the present disclosure, the second electrode portion 210c may include a material different from the first electrode portion 210b.

[0196] The vibration device 200 according to the embodiments of the present disclosure may further include a first cover member (or a first cover portion) 210d and a second cover member (or a second cover portion) 210e.

[0197] The first cover member 210d may be disposed on the first surface of the vibrating portion 210a. For example, the first cover member 210d may be disposed on the first electrode portion 210b. For example, the first cover member 210d may be disposed above the first electrode portion 210b. For example, the first cover member 210d may cover the first electrode portion 210b disposed on the first surface of the vibrating portion 210a, thereby protecting the first surface of the vibrating portion 210a or the first electrode portion 210b.

[0198] The second cover member 210e may be disposed on the second surface of the vibrating portion 210a. For example, the second cover member 210e may be disposed on the second electrode portion 210c. For example, the second cover member 210e may be disposed below the second electrode portion 210c. For example, the second cover member 210e may cover the second electrode portion 210c disposed on the second surface of the vibrating portion 210a, thereby protecting the second surface of the vibrating portion 210a or the second electrode portion 210c. In other words, the vibrating portion 210a is disposed between the first cover member 210d and the second cover member 210e.

[0199] Each of the first cover member 210d and the second cover member 210e according to embodiments of the present disclosure may include one or more materials selected from plastic, fiber, and wood, but embodiments of the present disclosure are not limited thereto. For example, each of the first cover member 210d and the second cover member 210e may include the same material or different materials. For example, each of the first cover member 210d and the second cover member 210e may be a polyimide (PI) film or a polyethylene terephthalate (PET) film, but embodiments of the present disclosure are not limited thereto.

[0200] The vibration device 200 according to embodiments of the present disclosure may further include a first adhesive layer 210f and a second adhesive layer 210g. For example, the first adhesive layer 210f may be disposed between the first cover member 210d and the first electrode portion 210b. For example, the second adhesive layer 210g may be disposed between the second cover member 210e and the second electrode portion 210c.

[0201] According to embodiments of the present disclosure, the first cover member 210d can be located at the first electrode portion 210b. For example, the first cover member 210d can be disposed on the first surface of the vibrating portion 210a via a first adhesive layer 210f. For example, the first cover member 210d can be connected or coupled to the first electrode portion 210b via the first adhesive layer 210f. For example, the first cover member 210d can be disposed on the first surface of the vibrating portion 210a via a film lamination process using the first adhesive layer 210f. Therefore, the vibrating portion 210a can be integrated (or disposed) into the first cover member 210d.

[0202] According to embodiments of the present disclosure, the second cover member 210e can be located at the second electrode portion 210c. For example, the second cover member 210e can be disposed on the second surface of the vibrating portion 210a via the second adhesive layer 210g. For example, the second cover member 210e can be connected or coupled to the second electrode portion 210c via the second adhesive layer 210g. For example, the second cover member 210e can be disposed on the second surface of the vibrating portion 210a via a film lamination process using the second adhesive layer 210g. Therefore, the vibrating portion 210a can be integrated (or disposed) into the second cover member 210e.

[0203] According to embodiments of this disclosure, the first adhesive layer 210f and the second adhesive layer 210g can be completely surrounded or encapsulated by the vibrating portion 210a. For example, the first adhesive layer 210f and the second adhesive layer 210g can be disposed between the first cover member 210d and the second cover member 210e to surround the vibrating portion 210a, the first electrode portion 210b, and the second electrode portion 210c. For example, the first adhesive layer 210f and the second adhesive layer 210g can be disposed between the first cover member 210d and the second cover member 210e to completely surround the vibrating portion 210a, the first electrode portion 210b, and the second electrode portion 210c. For example, the vibrating portion 210a, the first electrode portion 210b, and the second electrode portion 210c can be buried or embedded between the first adhesive layer 210f and the second adhesive layer 210g. For ease of description, the first adhesive layer 210f and the second adhesive layer 210g are shown, or the first adhesive layer 210f and the second adhesive layer 210g are not limited thereto and can be configured as a single adhesive layer.

[0204] Each of the first adhesive layer 210f and the second adhesive layer 210g according to embodiments of the present disclosure may include an electrically insulating material having adhesive properties and being capable of compression and decompression. For example, each of the first adhesive layer 210f and the second adhesive layer 210g may include epoxy resin, acrylic resin, silicone resin, or polyurethane resin, but embodiments of the present disclosure are not limited thereto.

[0205] According to embodiments of the present disclosure, the vibration part 210a may be integrally formed by the first cover member 210d and the second cover member 210e, thereby providing a vibration device 200 with a simplified structure and thinness.

[0206] Figures 6A to 6E The vibration section of a vibration device according to an embodiment of the present disclosure is illustrated. Figures 6A to 6E Examples Figure 4 and Figure 5 The modified implementation of the vibration component shown.

[0207] Reference Figure 6A and Figure 6E According to another embodiment of the vibration device 200 of the present disclosure, the vibration portion 210a may include a first portion 210a1 and a second portion 210a2. (See above for reference.) Figure 4 The first electrode portion, second electrode portion, first cover member, second cover member, first adhesive layer, and second adhesive layer described herein can be configured equally. The vibration device 200 according to another embodiment of this disclosure may be referred to as a flexible vibration structure, flexible vibrator, flexible vibration generating device, flexible vibration generator, flexible sound generator, flexible sound device, flexible sound generating device, flexible sound generator, flexible actuator, flexible loudspeaker, flexible piezoelectric loudspeaker, membrane actuator, membrane-type piezoelectric composite actuator, membrane loudspeaker, membrane piezoelectric loudspeaker, or thin-film piezoelectric composite loudspeaker, etc., but the embodiments of this disclosure are not limited thereto.

[0208] The vibrating portion 210a according to embodiments of the present disclosure may include a plurality of first portions 210a1 and a plurality of second portions 210a2. The vibrating portion 210a may include a plurality of first portions 210a1 and a plurality of second portions 210a2 located between the plurality of first portions 210a1. Each of the plurality of first portions 210a1 may include at least one or more of piezoelectric inorganic materials and piezoelectric organic materials.

[0209] For example, the first portion 210a1 may include an inorganic material, and the second portion 210a2 may include an organic material. For example, the first portion 210a1 may be a piezoelectric material, while the second portion 210a2 may have ductile or flexible properties. For example, the inorganic material of the first portion 210a1 may have piezoelectric properties, while the organic material of the second portion 210a2 may have ductile or flexible properties. For example, a plurality of first portions 210a1 and a plurality of second portions 210a2 may be arranged alternately and repeatedly in the second direction Y. Each of the plurality of first portions 210a1 may be disposed between two adjacent second portions 210a2 of the plurality of second portions 210a2.

[0210] Reference Figure 6A Each of the plurality of first portions 210a1 may have a first width W1 parallel to a first direction X and a length parallel to a second direction Y. For example, each of the plurality of second portions 210a2 may have a second width W2 parallel to the first direction X and a length parallel to the second direction Y. 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 portions 210a1 and the second portions 210a2 may include line shapes or strip shapes having the same or different dimensions. Therefore, Figure 6A The vibrating portion 210a shown may have a 2-2 composite structure, and therefore may have a resonant frequency of 20 kHz or less. However, the embodiments of this disclosure are not limited thereto, and the resonant frequency of the vibrating portion 210a may vary based on at least one or more of the shape, length, and thickness of the vibrating portion.

[0211] According to embodiments of this disclosure, the first part 210a1 may be a piezoelectric part, a piezoelectric element, an inorganic part, an inorganic material part, a piezoelectric layer, a vibrating layer, a displacement layer, or a displacement element, etc., but the terminology is not limited thereto. For example, the second part 210a2 may be an extended part, an elastic part, a flexible part, a stretchable part, an organic part, an organic material part, a damping part, a bending part, or a springback part, etc., but the terminology is not limited thereto.

[0212] Each of the plurality of first portions 210a1 and the plurality of second portions 210a2 may be arranged (or arranged) in parallel on the same plane (or the same layer). Each of the plurality of second portions 210a2 may be configured to fill the gap between two adjacent first portions 210a1. Each of the plurality of second portions 210a2 may be connected to or attached to an adjacent first portion 210a1. Thus, the vibrating portion 210a may extend to a desired size or length based on the lateral connection (or lateral link) between the first portions 210a1 and the second portions 210a2.

[0213] The width W2 of each of the plurality of second portions 210a2 may gradually decrease in the direction from the central portion of the vibrating portion 210a or the vibrating device 200 to its two edge portions (or ends).

[0214] According to embodiments of this disclosure, when the vibrating portion 210a or the vibrating device 200 vibrates in the vertical direction Z (or the thickness direction), the second portion 210a2 with the largest width W2 among the plurality of second portions 210a2 can be located at the portion with the greatest stress. When the vibrating portion 210a or the vibrating device 200 vibrates in the vertical direction Z, the second portion 210a2 with the smallest width W2 among the plurality of second portions 210a2 can be located at the portion where the relatively least stress occurs. For example, the second portion 210a2 with the largest width W2 among the plurality of second portions 210a2 can be provided at the central portion of the vibrating portion 210a, and the second portion 210a2 with the smallest width W2 among the plurality of second portions 210a2 can be provided at the two peripheral portions of the vibrating portion 210a. Therefore, when the vibrating portion 210a or the vibrating device 200 vibrates in the vertical direction Z, the overlap of resonant frequencies or interference of sound waves occurring at the portion of maximum stress concentration can be minimized, thereby reducing dip in the sound pressure level occurring in the low-pitched vocal cords. For example, the flatness of sound characteristics can be the magnitude of the deviation between the highest and lowest sound pressure levels.

[0215] Each of the plurality of first portions 210a1 may have a different size (or width). For example, the size (or width) of each of the plurality of first portions 210a1 may gradually decrease or increase in the direction from the central portion of the vibrating portion 210a or the vibrating device 200 to the two peripheral portions (or sides or ends). For example, the sound pressure level characteristics of the vibrating portion 210a can be enhanced by various unique vibration frequencies based on the vibration of the plurality of first portions 210a1 with different sizes, and the sound reproduction bandwidth can be extended and the audio fidelity can be improved.

[0216] Reference Figure 6BAccording to another embodiment of the present disclosure, the vibrating portion 210a may include a plurality of first portions 210a1 spaced apart from each other along a first direction X and a second direction Y, and a second portion 210a2 disposed between the plurality of first portions 210a1. The plurality of first portions 210a1 may be spaced apart from each other along each of the first direction X and the second direction Y. For example, the plurality of first portions 210a1 may have a hexahedral shape of the same size and may be arranged in a grid shape or a lattice arrangement. The second portion 210a2 may be disposed between the plurality of first portions 210a1 along each of the first direction X and the second direction Y. The second portion 210a2 may be configured to fill the gap between two adjacent first portions 210a1 or surround each of the plurality of first portions 210a1. Therefore, the second portion 210a2 may be connected to or attached to adjacent first portions 210a1. For example, the width of a second portion 210a2 disposed between two adjacent first portions 210a1 along the first direction X may be the same as or different from the width of the first portions 210a1, and the width of a second portion 210a2 disposed between two adjacent first portions 210a1 along the second direction Y may be the same as or different from the width of the first portions 210a1. Therefore, Figure 6B The vibrating portion 210a shown may have a resonant frequency of 30 MHz or less based on a 1-3 composite structure. However, embodiments of this disclosure are not limited thereto, and the resonant frequency of the vibrating portion 210a may vary based on one or more of the shape, length, and thickness of the vibrating portion.

[0217] Reference Figure 6C According to another embodiment of the present disclosure, the vibrating portion 210a may include a plurality of first portions 210a1 spaced apart from each other along a first direction X and a second direction Y, and a second portion 210a2 surrounding each of the plurality of first portions 210a1. Each of the plurality of first portions 210a1 may have a circular planar structure. For example, each of the plurality of first portions 210a1 may have a circular plate shape, but embodiments of the present disclosure are not limited thereto, and each of the plurality of first portions 210a1 may have a dot shape including an oval shape, a polygonal shape, or a ring shape. The second portion 210a2 may be configured to surround each of the plurality of first portions 210a1. Therefore, the second portion 210a2 may be connected to or attached to the side surface of each of the plurality of first portions 210a1. The plurality of first portions 210a1 and the second portion 210a2 may be arranged in parallel (or arranged) on the same plane (or the same layer). Therefore, Figure 6CThe vibrating portion 210a shown can be implemented as a vibration source (or vibrating element) with a circular shape and a 1-3 composite structure, and thus can have a resonant frequency of 30 MHz or less, thereby enhancing vibration characteristics or sound output characteristics. However, the embodiments of this disclosure are not limited thereto, and the resonant frequency of the vibrating portion 210a can vary based on one or more of the shape, length, and thickness of the vibrating portion.

[0218] Reference Figure 6D According to another embodiment of the present disclosure, the vibrating portion 210a may include a plurality of first portions 210a1 spaced apart from each other along a first direction X and a second direction Y, and a second portion 210a2 surrounding each of the plurality of first portions 210a1. Each of the plurality of first portions 210a1 may have a triangular planar structure. For example, each of the plurality of first portions 210a1 may have a triangular plate shape.

[0219] According to embodiments of this disclosure, four adjacent first portions 210a1 of a plurality of first portions 210a1 may be arranged adjacent to each other to form a quadrilateral shape (or a square shape). The vertex of each of the four adjacent first portions 210a1 forming the quadrilateral shape may be arranged adjacent to the middle portion (or central portion) of the quadrilateral shape. A second portion 210a2 may be configured to surround each of the plurality of first portions 210a1. Therefore, the second portion 210a2 may be connected to or attached to the side surface of each of the plurality of first portions 210a1. The plurality of first portions 210a1 and second portions 210a2 may be arranged parallel to each other on the same plane (or the same layer). Therefore, Figure 6D The vibrating portion 210a shown may have a 1-3 composite structure, and therefore may have a resonant frequency of 30 MHz or less, thereby enhancing the vibration characteristics or sound output characteristics. However, the embodiments of this disclosure are not limited thereto, and the resonant frequency of the vibrating portion 210a may vary based on one or more of the shape, length, and thickness of the vibrating portion.

[0220] According to another embodiment of this disclosure, such as Figure 6EAs shown, six adjacent first portions 210a1 of a plurality of first portions 210a1 can be arranged adjacent to each other to form a hexagon (or regular hexagon). The vertex of each of the six adjacent first portions 210a1 forming the hexagonal shape can be arranged adjacent to the middle portion (or central portion) of the hexagonal shape. A second portion 210a2 can be configured to surround each of the plurality of first portions 210a1. Therefore, the second portion 210a2 can be connected to or attached to the side surface of each of the plurality of first portions 210a1. The plurality of first portions 210a1 and the second portion 210a2 can be arranged parallel to each other on the same plane (or the same layer). Therefore, Figure 6E The vibrating portion 210a shown can be implemented as a vibration source (or vibrating element) with a circular shape and a 1-3 composite structure, and thus can have a resonant frequency of 30 MHz or less, thereby enhancing vibration characteristics or sound output characteristics. However, the embodiments of this disclosure are not limited thereto, and the resonant frequency of the vibrating portion 210a can vary based on one or more of the shape, length, and thickness of the vibrating portion.

[0221] Reference Figure 6D and Figure 6E 2N (where N is a natural number greater than or equal to 2) adjacent first parts 210a1 of a plurality of first parts 210a1 having a triangular shape can be arranged to be adjacent to each other to form a 2N-angle shape.

[0222] exist Figures 6A to 6E In this embodiment, each of the plurality of first portions 210a1 according to the present disclosure may include an inorganic material portion. The inorganic material portion may include a piezoelectric material or an electroactive material. A piezoelectric or electroactive material may have the characteristic that when pressure or torsion is applied to a crystal structure by an external force, a potential difference is generated due to dielectric polarization caused by changes in the relative positions of positive (+) ions and negative (-) ions, and vibrations are generated by an electric field based on the voltage applied thereto. (Refer to...) Figure 4 The first surface of each of the plurality of first portions 210a1 can be electrically connected to the first electrode portion 210b, and the second surface of each of the plurality of first portions 210a1 can be electrically connected to the second electrode portion 210c.

[0223] Figure 7 yes Figure 2 An enlarged view of the area "B1" shown. Figure 8 It is used to describe the settings Figure 1 A plan view of the adhesive component and the vibration device at the first display area of ​​the display component shown. Figure 7 and Figure 8 This is a diagram illustrating the arrangement structure of a vibration device according to an embodiment of the present disclosure.

[0224] Reference Figure 1 , Figure 7 and Figure 8 According to the embodiments of the present disclosure, the vibration device 200 may include a first vibration device 210 and a second vibration device 220 disposed in a first display area A1 of the display member 100, and a third vibration device 230 and a fourth vibration device 240 disposed in a second display area A2 of the display member 100.

[0225] The first vibration device 210 and the second vibration device 220 can be disposed in the first display area A1 of the display member 100 at the gap space GS between the display member 100 and the support frame 300, and can be connected to the rear surface of the vibration device. Each of the first vibration device 210 and the second vibration device 220 can be connected to the rear surface of the display member 100 via a connecting member 205. Each of the third vibration device 230 and the fourth vibration device 240 can be disposed in the second display area A2 of the display member 100 at the gap space GS between the display member 100 and the support frame 300, and can be connected to the rear surface of the display member 100. Each of the third vibration device 230 and the fourth vibration device 240 can be connected to the rear surface of the display member 100 via a connecting member 205.

[0226] The connecting member 205 may include an acrylic-based or polyurethane-based adhesive member, but embodiments of this disclosure are not limited thereto. For example, the connecting member 205 may include an acrylic-based adhesive member having relatively good adhesion and high hardness, such that vibrations from the vibrating devices 210 to 240 are well transmitted to the display member 100. For example, the connecting member 205 may include a double-sided foam adhesive pad comprising an acrylic-based adhesive layer or an acrylic-based adhesive resin cured layer.

[0227] The first vibrating device 210 and the second vibrating device 220 may be arranged parallel to each other along the first direction X to have a first interval D1 in the gap space GS. The third vibrating device 230 and the fourth vibrating device 240 may be arranged parallel to each other along the first direction X to have a first interval D1 in the gap space GS. For example, the first interval D1 may be 35% to 40% of the dimension of each of the vibrating devices 210 to 240. For example, the first interval D1 may be 35% to 40% of the length of the major axis (or long side) of each of the vibrating devices 210 to 240. For example, when the lateral length and longitudinal length of each of the vibrating devices 210 to 240 are 6 cm, the first interval D1 may be 2.3 cm.

[0228] The total area of ​​the first vibration device 210 and the second vibration device 220, obtained by adding their areas, can be 25% to 31% of the size of the display member 100 corresponding to the first display area A1. The total area of ​​the first vibration device 210 and the second vibration device 220, obtained by adding their areas, can be 25% to 31% of half the size of the display panel 110. The total area of ​​the third vibration device 230 and the fourth vibration device 240, obtained by adding their areas, can be 25% to 31% of the size of the display member 100 corresponding to the second display area A2. The total area of ​​the third vibration device 230 and the fourth vibration device 240, obtained by adding their areas, can be 25% to 31% of half the size of the display member 100. For example, when the total area occupied by the first vibrating device 210 and the second vibrating device 220 is less than 25% of the area of ​​the display member 100 corresponding to the first display area A1, the sound pressure level may decrease due to the reduced size of each of the first vibrating devices 210 and 220. When the total area occupied by the first vibrating device 210 and the second vibrating device 220 is greater than 31% of the area of ​​the display member 100 corresponding to the first display area A1, the sound pressure level may decrease due to the reduced volume of the gap space GS, and because the sizes of the vibrating devices 210 and 220 are too large compared to the gap space GS, the destructive interference between the vibrations generated by the first vibrating device 210 and the second vibrating device 220 may increase, leading to a decrease in the sound pressure level. Therefore, in order to provide an optimal balance between large vibrating devices and a large gap space GS (e.g., used as a resonant chamber, resonant space, or sound space, etc.) to produce optimal sound, the sum of the dimensions of the first vibrating device 210 and the second vibrating device 220 can be set to 25% to 31% (e.g., 28%) of half the size of the display panel 110.

[0229] The distance D2 between each of the first to fourth vibration devices 210 and the support frame 300 can be 0.5 to 3 times the thickness T1 of the first to fourth vibration devices 210 to 240. For example, when the distance D2 between each of the first to fourth vibration devices 210 and the support frame 300 is less than 0.5 times the thickness T1 of the first to fourth vibration devices 240, the sound pressure level may decrease due to the reduced size of each of the first to fourth vibration devices 240. For example, when the distance D2 between each of the first to fourth vibration devices 210 and the support frame 300 is greater than or equal to 3 times the thickness T1 of the first to fourth vibration devices 240, physical contact between the first and second vibration devices and the support frame 300 may occur, and the thickness of the device 10 may increase.

[0230] In the adhesive member 400 corresponding to the first display area A1, the width W3 of the adhesive member 400 can be 10% to 30% (e.g., 20%) of the width W4 of the first display area A1 parallel to the first direction X. For example, when the width W3 of the adhesive member 400 is less than 10% of the width W4 of the first display area A1, the adhesive force between the adhesive member 400 and the rear surface of the display member 100 will decrease, resulting in reduced reliability. When the width W3 of the adhesive member 400 is greater than 10% of the width W4 of the first display area A1, the volume of the gap space GS will decrease, resulting in a decrease in sound pressure level. Therefore, when the width W3 of the adhesive member 400 can be 10% to 30% (e.g., 20%) of the width W4 of the first display area A1 parallel to the first direction X, an optimal balance between adhesive force and reliability can be achieved.

[0231] In the adhesive member 400 corresponding to the second display area A2, the width W3 of the adhesive member 400 can be 10% to 30% (e.g., 20%) of the width W4 of the second display area A2, which is parallel to the first direction X. For example, when the width W3 of the adhesive member 400 is less than 10% of the width W4 of the second display area A2, the adhesive force between the adhesive member 400 and the rear surface of the display member 100 will decrease, resulting in reduced reliability. When the width W3 of the adhesive member 400 is greater than 10% of the width W4 of the second display area A2, the volume of the gap space GS will decrease, resulting in a decrease in sound pressure level.

[0232] Figure 9 yes Figure 2 Another enlarged view of the area "B1" shown. Figure 10 It is used to describe the settings Figure 8The plan view of the adhesive component and the vibration device in the first display area of ​​the display component shown. Figure 9 and Figure 10 Examples are shown by modifying Figure 7 and Figure 8 The embodiment achieved by the adhesive member shown is therefore described in the following way. Figure 9 and Figure 10 In this case, only the adhesive components will be described below.

[0233] Reference Figure 9 and Figure 10 In another embodiment of the device according to this disclosure, the width W3 of the adhesive member 400 may be about 30% of the width W4 of the first display area A1 parallel to the first direction X. Therefore, the adhesive force between the adhesive member 400 and the rear surface of the display member 100 can be sufficiently ensured based on the width W3 of the adhesive member 400.

[0234] Figure 11 yes Figure 2 Another enlarged view of the area "B1" shown. Figure 11 Examples are shown by modifying Figure 9 and Figure 10 The embodiment shown is an implementation where the thickness of the adhesive member is used to achieve this, therefore, in the description Figure 11 In this case, only the adhesive components will be described below.

[0235] Reference Figure 11 In another embodiment of the device according to the present disclosure, the thickness (or height) of the adhesive member 400 can be set such that the distance D2 between the vibrating devices 210 to 240 and the support frame 300 is about 0.5 times the thickness T1 of the vibrating devices 210 to 240, so that the display member can vibrate based on the vibration of each of the vibrating devices 210 to 240 to output sound, thereby making the device thinner.

[0236] Figure 12 yes Figure 2 Another enlarged view of the area "B1" shown. Figure 13 yes Figure 12 The plan view of the adhesive component is shown. Figure 12 and Figure 13 Examples are shown by changing Figure 9 and Figure 10 The embodiment shown is implemented based on the shape of the adhesive member, therefore, in the description Figure 12 and Figure 13 In this case, only the adhesive components will be described below.

[0237] Reference Figure 12 and Figure 13In another embodiment of the device according to this disclosure, the adhesive member 400 may have a one-dimensional oval (or circular) shape. Therefore, the gap space GS surrounded by the adhesive member 400 may also have a one-dimensional oval (or circular) shape. Furthermore, the side surface (or inner surface) of the adhesive member 400 between the rear surface of the display member 100 and the support frame 300, or surrounding the gap space GS, may have a curved or recessed curved shape. For example, in this way, spherical or rounded resonant chambers, resonant spaces, or sound spaces can be provided, which can improve sound quality while maintaining the structural integrity of the device.

[0238] Therefore, according to another embodiment of this disclosure, the sound pressure level can be enhanced because the oval shape of the gap space GS increases the reflection of sound waves in the gap space GS. For example, sound waves generated based on the vibration of each of the vibrating devices 210 to 240 can be reflected from the recessed side surface of the adhesive member 400 and can travel toward the display member 100, thus increasing the efficiency of the vibration transmitted to the display member 100, thereby enhancing the sound pressure level.

[0239] Figure 14 yes Figure 2 Another enlarged view of the area "B1" shown. Figure 15 yes Figure 14 Floor plan. Figure 14 and Figure 15 Examples are shown in Figure 7 and Figure 8 The embodiments shown are additionally provided with separators, therefore, in the description Figure 14 and Figure 15 At that time, only the addition below is described. Figure 7 and Figure 8 The components of the embodiment shown.

[0240] Reference Figure 1 , Figure 14 and Figure 15 According to another embodiment of the present disclosure, the device may further include a separator 700 for dividing the gap space GS.

[0241] The separator 700 can be disposed in the gap space GS overlapping with the first display area A1 between the first vibration device 210 and the second vibration device 220, and can be connected to the rear surface of the display member 100 and the support frame 300. Therefore, the separator 700 can divide the space between the first vibration device 210 and the second vibration device 220, thereby minimizing sound interference between the first vibration device 210 and the second vibration device 220 (e.g., this can improve binaural sound or stereo sound).

[0242] The device according to another embodiment of the present disclosure may further include one or more pad members 750 disposed between the vibration devices 210 to 240 and the support frame 300.

[0243] One or more pad members 750 may be connected between the rear surface of each of the vibration devices 210 to 240 and the support frame 300. One or more pad members 750 may include materials for absorbing or modulating vibrations. For example, pad members 750 may include materials different from those of the separator 700, but embodiments of this disclosure are not limited thereto. For example, pad members 750 may include one of silicone-based polymers, paraffin wax, and acrylic-based polymers, but embodiments of this disclosure are not limited thereto. For example, pad members 750 may include a polyurethane-based material (or substance) having relatively ductile properties compared to acrylic acid and acrylic in polyurethane, thereby minimizing the transmission of vibrations from each of the vibration devices 210 to 240 to the support frame 300.

[0244] One or more pad members 750 can improve the reduction in sound pressure level at a specific frequency occurring in the vibrating devices 210 to 240 (e.g., this can improve low-frequency sounds such as bass-heavy sounds). For example, one or more pad members 750 can be a resonance control pad, an external resonance pad, a gap pad, or a resonance controller, but embodiments of this disclosure are not limited thereto.

[0245] Figure 16 yes Figure 2 Another enlarged view of the area "B1" shown. Figure 16 Examples are shown in Figure 7 and Figure 8 The embodiments shown provide implementations of the vibration device; therefore, in the description Figure 16 Therefore, the following description will only focus on vibrating equipment.

[0246] Reference Figure 1 and Figure 16 In another embodiment of the device according to this disclosure, each of the vibration device 200 or the first vibration device 210 to the fourth vibration device 240 may include a plurality of active vibration members 211 and 212 and a connecting member 213 between the plurality of active vibration members 211 and 212. For example, each of the vibration device 200 or the first vibration device 210 to the fourth vibration device 240 may include a bimorph structure.

[0247] Each of the multiple active vibration components 211 and 212 can be referenced above. Figures 4 to 6E The vibration devices 200 described are essentially the same, so repeated descriptions of them can be omitted.

[0248] Each of the plurality of active vibrating elements 211 and 212 can be configured to shift (or vibrate or drive) in the same direction. For example, each of the plurality of active vibrating elements 211 and 212 can be stacked on top of each other to have a dual piezoelectric wafer structure.

[0249] Each of the first vibration devices 210 to the fourth vibration devices 240 may include a plurality of active vibrating members 211 and 212 configured to displace (or vibrate or drive) in the same direction, so that the displacement width (or vibration width) can be increased at the same voltage, thereby significantly increasing the sound pressure level without increasing the voltage, which can reduce power consumption. Therefore, the sound characteristics and / or sound pressure level characteristics of the bass vocal cords generated by the vibration of the display member 100 based on each of the first vibration devices 210 to the fourth vibration devices 240 can be enhanced.

[0250] Figure 17 This is a plan view illustrating an adhesive member and a vibration device disposed in a first display area of ​​a display member in a device according to another embodiment of the present disclosure.

[0251] Reference Figure 17 In another embodiment of the device according to this disclosure, each of the vibration device 200 or the first vibration device 210 to the fourth vibration device 240 can be implemented as having a circular shape or a circular plate structure. For example, each of the first vibration device 210 to the fourth vibration device 240 can be implemented as a vibration source (or vibration element) with a circular shape, thereby outputting uniform sound waves to the omnidirectional region, thereby further enhancing the sound pressure level (e.g., providing a more uniform sound).

[0252] Figure 17 The circular vibrating devices 210 to 240 shown can be equally applied to... Figures 7 to 16 Even under these conditions, the vibration devices 210 to 240 shown can output uniform sound waves to the omnidirectional region, thereby further enhancing the sound pressure level characteristics.

[0253] Figure 18 This is a graph showing the average sound pressure level characteristics in a device according to an embodiment of the present disclosure, representing the total area ratio of the size of the vibrating device to the size of the display component. Figure 18 The experiment showed the average sound pressure level characteristics relative to the total area ratio of the vibrating device located in the area corresponding to the first display area of ​​the display component.

[0254] like Figure 18As shown, it can be seen that when the total area ratio obtained by adding the areas of the first vibration device 210 and the second vibration device 220 is 25% to 31% (e.g., 28%) of the size of the display member 100 corresponding to the first display area A1, the average sound pressure level is relatively high compared to cases where the total area ratio is less than 25% or greater than 31% of the size of the display member 100 corresponding to the first display area A1.

[0255] Figures 19A to 19D The vibration patterns of the device according to embodiments of the present disclosure and the vibration patterns of experiments 1 to 3 are illustrated. Figure 19A An example is given when two vibrating devices with dimensions of 6cm x 6cm are used as follows: Figure 7 The image shows the vibration pattern when the spacing is 2.3 cm. Figure 19B The vibration pattern is illustrated when a vibrating device with dimensions of 6cm × 12cm is provided. Figure 19C The vibration pattern is illustrated when two vibrating devices with dimensions of 6cm × 6cm are arranged at a distance of 4.6cm. Figure 19D The vibration pattern is illustrated when two vibrating devices with dimensions of 6cm × 6cm are arranged at a distance of 0.5cm.

[0256] exist Figure 19B or Figure 19D In the vibration pattern, although the vibration sources are separated, it can be seen that each vibration source is small in size and there are multiple vibration sources, thus increasing the partial separation vibration. Although the occurrence of destructive interference increases and the vibration sources are separated, the effect on improving the sound pressure level characteristics may be slight.

[0257] According to the embodiments of this disclosure, with Figure 19B , Figure 19C and Figure 19D Compared to the vibration shape shown, in Figure 19A The vibration patterns shown exhibit a large circular vibration source with symmetrically separated vibrations in the vertical direction, resulting in high vibration uniformity. Therefore, the sound pressure level characteristics of the low-pitched vocal cords can be enhanced (e.g., the bass pitch can be improved).

[0258] The vibration device according to embodiments of this disclosure can be applied to a vibration device installed at a device. Devices according to embodiments of this disclosure can be applied to mobile devices, video phones, smartwatches, watch phones, wearable devices, foldable devices, rollable devices, bendable devices, flexible devices, curved surface devices, sliding devices, variable devices, electronic managers, e-books, portable multimedia players (PMPs), personal digital assistants (PDAs), MP3 players, mobile medical devices, desktop personal computers (PCs), laptop PCs, netbooks, workstations, navigation devices, car navigation devices, in-vehicle display devices, in-vehicle devices, cinema equipment, cinema display devices, TVs, wallpaper display devices, signage devices, game consoles, laptop computers, monitors, cameras, camcorders, and home appliances, etc. Furthermore, vibration devices according to some embodiments of this disclosure can be applied to organic light-emitting lighting devices or inorganic light-emitting lighting devices. When the vibration device according to embodiments of this disclosure is applied to a lighting device, the lighting device can be used as both lighting and a speaker. Furthermore, when the vibration device according to the embodiments of this disclosure is applied to a mobile device or the like, the vibration device may be one or more of a speaker, a receiver, and a tactile device, but the embodiments of this disclosure are not limited thereto.

[0259] The apparatus according to embodiments of the present disclosure will now be described.

[0260] The apparatus according to some embodiments of the present disclosure may include a display member configured to display an image, a vibration device located at a rear surface of the display member, a support frame located at a rear surface of the vibration device, and an adhesive member located between the support frame and the rear surface of the display member, the adhesive member and / or the support frame being spaced apart from the vibration device, the vibration device being configured to vibrate in a direction toward the display member.

[0261] According to some embodiments of this disclosure, the vibration device can cause the display component to vibrate to output one or more of sound and tactile feedback. The vibration device can be configured to contact or be mounted on the rear surface of the display component. The vibration device can be spaced apart from the support frame but facing the support frame (i.e., the front surface of the support frame).

[0262] According to some embodiments of this disclosure, the rear surface of the display component and the support frame are spaced apart by an adhesive member to form a gap space between the rear surface of the display component and the support frame, and a vibration device can be disposed at or within the gap space.

[0263] According to some embodiments of this disclosure, the vibration device may include a first vibration device and a second vibration device, and both the first vibration device and the second vibration device may be disposed between the rear surface of the display member and the support frame.

[0264] According to some embodiments of this disclosure, the first vibration device and the second vibration device may be spaced apart from each other by a gap that is 35% to 40% (e.g., 37%) of the length of the first vibration device or the second vibration device.

[0265] According to some embodiments of this disclosure, the display component may include a first display area, a second display area, and a third display area between the first display area and the second display area, and the first vibration device and the second vibration device may overlap with the first display area.

[0266] According to some embodiments of this disclosure, the side surfaces of the adhesive member surrounding and / or facing the gap space may have a curved shape. The curvature may be in a plane parallel to the surface of the display member used to display images, or it may be in a plane perpendicular to it.

[0267] According to some embodiments of this disclosure, the gap space and / or the side surfaces of the adhesive member surrounding the gap space may have a circular or oval shape.

[0268] The apparatus according to some embodiments of the present disclosure may include: a display member configured to display an image; a support frame located at the rear surface of the display member; an adhesive member located between the support frame and the rear surface of the display member, the adhesive member including a hollow portion; and a vibration device disposed at or within the hollow portion of the adhesive member to cause the display member to vibrate. The hollow portion may also be referred to as a gap space.

[0269] According to some embodiments of this disclosure, the display component may include a first display area, a second display area, and a folded area between the first and second display areas, and the hollow portion of the adhesive component may be disposed at each of the first and second display areas. That is, the hollow portion may be disposed on the rear side of the first and second display areas, or the hollow portion may be disposed on the rear side of both the first and second display areas. The folded area may be covered by the adhesive component. That is, the hollow portion may not be disposed in the folded area.

[0270] According to some embodiments of this disclosure, the adhesive member may not be provided in the folded area.

[0271] According to some embodiments of the present disclosure, the vibration device may include a first vibration device and a second vibration device disposed in a hollow portion of the adhesive member in a region overlapping with a first display area to vibrate the first display area of ​​the display member, and a third vibration device and a fourth vibration device disposed in a hollow portion of the adhesive member in a region overlapping with a second display area to vibrate the second display area of ​​the display member.

[0272] According to some embodiments of this disclosure, the total area of ​​the first vibration device and the second vibration device can be equal to 25% to 31% (e.g., 28%) of the first display area. That is, the sum of the areas of the first vibration device and the second vibration device can be equal to 25% to 31% of the first display area. Here, the area can be understood as being in a plane parallel to the surface used to display the image.

[0273] According to some embodiments of this disclosure, the distance between each of the first and second vibration devices and the support frame may be equal to 0.5 to 3 times (e.g., 1.75 times) the thickness of each of the first and second vibration devices.

[0274] According to some embodiments of this disclosure, the width of the adhesive member corresponding to the first display area may be equal to 10% to 30% (e.g., 20%) of the width of the first display area in the first direction, and this portion of the adhesive member overlaps with the first display area.

[0275] According to some embodiments of this disclosure, the device may further include a separator disposed between the rear surface of the display member and the support frame and / or between the first vibration device and the second vibration device. That is, the separator may extend between the display member and the support frame in a gap space or hollow portion.

[0276] According to some embodiments of this disclosure, the device may further include one or more pad members disposed between the support frame and at least one of the first vibration device and the second vibration device.

[0277] According to some embodiments of this disclosure, each of one or more pad members may include a material configured to absorb or modulate vibrations.

[0278] According to some embodiments of this disclosure, each of the first vibration device and the second vibration device may include a dual piezoelectric wafer structure.

[0279] According to some embodiments of this disclosure, the vibration device may include a circular shape, an oval shape, or a rounded shape.

[0280] According to some embodiments of this disclosure, the vibration device can be configured to be connected to the rear surface of the display member via a connecting member.

[0281] According to some embodiments of this disclosure, the vibration device may include: a first electrode portion; a second electrode portion; and a vibration portion disposed between the first electrode portion and the second electrode portion.

[0282] According to some embodiments of this disclosure, a vibration device may include a vibration portion, a first electrode portion at a first surface of the vibration portion, and a second electrode portion at a surface different from the first surface of the vibration portion.

[0283] According to some embodiments of this disclosure, the vibrating part may include at least one or more of piezoelectric inorganic materials and piezoelectric organic materials.

[0284] According to some embodiments of this disclosure, the vibration device may include a plurality of first portions and a plurality of second portions disposed between the plurality of first portions, the plurality of second portions comprising organic materials, and each of the plurality of first portions comprising one or more of piezoelectric inorganic materials and piezoelectric organic materials.

[0285] According to some embodiments of this disclosure, the display component may include: a front component; a rear component; and a display panel disposed between the front component and the rear component, the display panel including pixels configured to display an image, and a vibration device may be coupled to the rear component.

[0286] According to some embodiments of this disclosure, the display component may include: a display panel including pixels configured to display an image; a front component above the display panel; and a rear component below the display panel, and the vibration device may be configured to be connected to the rear component.

[0287] The apparatus according to some embodiments of the present disclosure may include: a display member configured to display video; a support frame; a vibration device disposed between the display member and the support frame; and an adhesive member disposed between the support frame and the display member, the adhesive member being spaced apart from the vibration device.

[0288] According to some embodiments of this disclosure, the vibration device may be spaced apart from the support frame.

[0289] According to some embodiments of this disclosure, the vibration device can be configured to output audio information synchronized with video.

[0290] According to some embodiments of this disclosure, the area of ​​the vibration device can be equal to 25% to 31% of the display area.

[0291] According to some embodiments of this disclosure, the vibration device may include: a first vibration device that overlaps with a first display area of ​​a display member; and a second vibration device that overlaps with a second display area of ​​a display member.

[0292] According to some embodiments of this disclosure, the display member may include a third display region between the first display region and the second display region, and the display member may be configured to bend at the third display region, and the first vibration device and the second vibration device may not overlap with the third display region.

[0293] According to some embodiments of this disclosure, the adhesive member may have a closed-loop shape surrounding the vibrating device.

[0294] According to some embodiments of this disclosure, the adhesive member, the support frame, and the display member can form a sound space, and the vibration device can be disposed in the sound space.

[0295] According to some embodiments of the present disclosure, the vibration device may include: a first cover portion; a first adhesive layer; a first electrode portion; a vibration portion; a second electrode portion; a second adhesive layer; and a second cover portion, wherein the vibration portion may be disposed between the first electrode portion and the second electrode portion, the first adhesive layer may be disposed between the first cover portion and the first electrode portion, and the second adhesive layer may be disposed between the second electrode portion and the second cover portion.

[0296] According to some embodiments of this disclosure, the first electrode portion, the vibrating portion, and the second electrode portion may be encapsulated by a first adhesive layer and a second adhesive layer.

[0297] According to some embodiments of this disclosure, the vibration device can be configured to vibrate in a direction toward the display component.

[0298] It will be apparent to those skilled in the art that various modifications and variations can be made to this disclosure without departing from its scope. In other words, this disclosure is intended to cover modifications and variations thereof, provided they fall within the scope of the appended claims and their equivalents.

[0299] Cross-reference to related applications

[0300] This application claims the benefit of Korean Patent Application No. 10-2021-0194786, filed on December 31, 2021, which is incorporated herein by reference as if fully set forth herein.

Claims

1. An electronic device, the electronic device comprising: Display component, the display component being configured to display an image; A vibration device located on the rear surface of the display component; A support frame located on the rear surface of the vibrating device; as well as An adhesive member is provided between the rear surfaces of the support frame and the display member, and the adhesive member and / or the support frame are spaced apart from the vibration device. A complete frame, disposed on the rear surface of the support frame and including space, the space accommodating circuit elements for driving the electronic device. The vibration device is configured to vibrate in a direction toward the display member, and The side surface of the adhesive member has a curved shape facing the gap space between the rear surface of the display member and the support frame.

2. The electronic device according to claim 1, wherein, The vibration device causes the display component to vibrate to output one or more of sound and tactile feedback.

3. The electronic device according to claim 1, wherein, The rear surface of the display component and the support frame are spaced apart by the adhesive member to form the gap space between the rear surface of the display component and the support frame. The vibration device is installed in the gap space.

4. The electronic device according to claim 1, wherein, The vibration equipment includes a first vibration equipment and a second vibration equipment, and The first vibration device and the second vibration device are both disposed between the rear surface of the display component and the support frame.

5. The electronic device according to claim 4, wherein, The first vibrating device and the second vibrating device are spaced apart from each other by a gap, which is 35% to 40% of the length of the first vibrating device or the second vibrating device.

6. The electronic device according to claim 4, wherein, The display component includes a first display area, a second display area, and a third display area between the first display area and the second display area. The first vibration device and the second vibration device face the first display area.

7. The electronic device according to claim 3, wherein, The gap space and / or the side surface of the adhesive member surrounding the gap space have a circular or oval shape.

8. An electronic device, the electronic device comprising: Display component, the display component being configured to display an image; A support frame located on the rear surface of the display component; An adhesive member is provided between the support frame and the rear surface of the display member, the adhesive member including a hollow portion; A vibration device disposed in the hollow portion of the adhesive member to cause the display member to vibrate; as well as A complete frame, disposed on the rear surface of the support frame and including space, the space accommodating circuit elements for driving the electronic device. The side surface of the adhesive member has a curved shape facing the gap space between the rear surface of the display member and the support frame.

9. The electronic device according to claim 8, wherein, The display component includes a first display area, a second display area, and a folded area between the first display area and the second display area. The hollow portion of the adhesive member overlaps with at least one of the first display area and the second display area.

10. The electronic device according to claim 9, wherein, The adhesive component is not located in the folded area.

11. The electronic device according to claim 9, wherein, The vibration device includes: A first vibration device and a second vibration device are disposed in the hollow portion of the adhesive member in the region overlapping with the first display area, to cause the first display area of ​​the display member to vibrate; and A third vibration device and a fourth vibration device are disposed in the hollow portion of the adhesive member in the region overlapping with the second display area, so as to cause the second display area of ​​the display member to vibrate.

12. The electronic device according to claim 6 or 11, wherein, The total area of ​​the first vibration device and the second vibration device is equal to 25% to 31% of the first display area.

13. The electronic device according to claim 6 or 11, wherein, The distance between each of the first and second vibration devices and the support frame is equal to 0.5 to 3 times the thickness of each of the first and second vibration devices.

14. The electronic device according to claim 6 or 11, wherein, The width of the adhesive member corresponding to the first display area is equal to 10% to 30% of the width of the first display area in the first direction, and a portion of the adhesive member overlaps with the first display area.

15. The electronic device according to any one of claims 4 to 6 and 11, the electronic device further comprising a spacer disposed between the rear surface of the display member and the support frame and between the first vibration device and the second vibration device.

16. The electronic device according to any one of claims 4 to 6 and 11, the electronic device further comprising one or more pad members disposed between the support frame and at least one of the first vibration device and the second vibration device.

17. The electronic device according to claim 16, wherein, Each of the one or more pad members includes a material configured to absorb or modulate vibrations.

18. The electronic device according to any one of claims 4 to 6 and 11, wherein, Each of the first vibration device and the second vibration device includes a dual piezoelectric wafer structure.

19. The electronic device according to any one of claims 1 to 6 and 11, wherein, The vibrating device may be circular, oval, or rounded.

20. The electronic device according to any one of claims 1 to 11, wherein, The vibration device is connected to the rear surface of the display component via a connecting member.

21. The electronic device according to any one of claims 1 to 11, wherein, The vibration device includes: First electrode section; The second electrode portion; and A vibrating component is disposed between the first electrode component and the second electrode component.

22. The electronic device according to claim 21, wherein, The vibrating component includes at least one or more of piezoelectric inorganic materials and piezoelectric organic materials.

23. The electronic device according to claim 21, wherein, The vibration device includes a plurality of first parts and a plurality of second parts disposed between the plurality of first parts, the plurality of second parts comprising organic materials, and Each of the plurality of first parts includes one or more of piezoelectric inorganic materials and piezoelectric organic materials.

24. The electronic device according to any one of claims 1 to 11, wherein, The display component includes: Front components; Rear components; and A display panel is disposed between the front member and the rear member, the display panel including pixels configured to display images, and The vibration device is connected to the rear component.

25. An electronic device, the electronic device comprising: Display component, the display component being configured to display video; Supporting framework; A vibration device is disposed between the display component and the support frame; An adhesive component is disposed between the support frame and the display component, and the adhesive component is spaced apart from the vibration device; as well as A complete frame, disposed on the rear surface of the support frame and including space, the space accommodating circuit elements for driving the electronic device. The side surface of the adhesive member has a curved shape facing the gap space between the rear surface of the display member and the support frame.

26. The electronic device according to claim 25, wherein, The vibration device is spaced apart from the support frame.

27. The electronic device according to claim 25, wherein, The vibration device is configured to output audio information synchronized with the video.

28. The electronic device according to claim 25, wherein, The area of ​​the vibration device is equal to 25% to 31% of the display area.

29. The electronic device according to any one of claims 25 to 28, wherein, The vibration device includes: A first vibration device, the first vibration device overlapping with a first display area of ​​the display component; and The second vibration device overlaps with the second display area of ​​the display component.

30. The electronic device according to claim 29, wherein, The display component includes a third display region between the first display region and the second display region, and the display component is configured to bend at the third display region. The first vibration device and the second vibration device do not overlap with the third display area.

31. The electronic device according to any one of claims 25 to 28, wherein, The adhesive component has a closed-loop shape surrounding the vibrating device.

32. The electronic device according to any one of claims 25 to 28, wherein, The adhesive member, the support frame, and the display member form a sound space, and the vibration device is disposed in the sound space.

33. The electronic device according to any one of claims 25 to 28, wherein, The vibration device includes: First cover section; First adhesive layer; First electrode section; Vibrating part; Second electrode section; Second adhesive layer; and The second cover part, The vibrating component is disposed between the first electrode portion and the second electrode portion. The first adhesive layer is disposed between the first cover portion and the first electrode portion, and The second adhesive layer is disposed between the second electrode portion and the second cover portion.

34. The electronic device according to claim 33, wherein, The first electrode portion, the vibrating portion, and the second electrode portion are encapsulated by the first adhesive layer and the second adhesive layer.

35. The electronic device according to any one of claims 25 to 28, wherein, The vibration device is configured to vibrate in a direction toward the display component.

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