Display device and speaker device

Abstract

This technology relates to a display device and a speaker device capable of outputting sound from the display surface of a non-self-luminous display panel. A display device is provided, comprising: a display panel unit including a non-self-luminous display unit; a light source unit that illuminates the display panel unit with light from the rear surface; and an excitation unit that vibrates components constituting the display panel unit, thereby outputting sound from the display surface of the display unit. The excitation unit vibrates components secured to the excitation member by a predetermined securing method by providing excitation to an excitation member having a predetermined shape and color. For example, this technology can be applied to liquid crystal display devices.

Description

Technical Field

[0001] The present technology relates to a display device and a speaker device, and more particularly, to a display device and a speaker device capable of outputting sound from a display surface of a non-self-luminous display panel. Background Art

[0002] As thinner and lighter display devices such as monitors have rapidly grown, speaker devices have also become thinner and lighter, and flat panel speakers have been proposed as a replacement for cone speakers.

[0003] There is disclosed a technology in which a self-luminous display device includes a flat panel speaker and outputs sound from a display surface on which an image is displayed (for example, see Patent Document 1).

[0004] Reference List

[0005] Patent Literature

[0006] Patent document 1: WO 2018 / 123310 A. Summary of the Invention

[0007] Problems to be solved by the present invention

[0008] Meanwhile, even in non-self-luminous display devices, there is a demand for outputting sound from a display surface on which an image is displayed, but such a technical method has not yet been established.

[0009] The present technology has been made in view of such circumstances, and enables sound to be output from the display surface of a non-self-luminous display panel.

[0010] Solution to the problem

[0011] A display device according to one aspect of the present technology includes: a display panel unit including a non-self-luminous display unit; a light source unit that illuminates the display panel unit with light from the back surface; and an excitation unit that vibrates component members constituting the display panel unit and outputs sound from a display surface of the display unit. The excitation unit provides excitation to an excitation member having a predetermined shape and a predetermined color to vibrate the component members fixed to the excitation member by a predetermined fixing method.

[0012] In a display device according to one aspect of the present technology, a display panel unit including a non-self-luminous display unit, a light source unit that illuminates the display panel unit with light from the back, and an excitation unit that vibrates component members constituting the display panel unit and outputs sound from a display surface of the display unit are provided. An excitation member having a predetermined shape and a predetermined color is excited by the excitation unit, causing the component member fixed to the excitation member by a predetermined fixing method to vibrate.

[0013] A speaker device according to one aspect of the present invention includes an excitation unit that vibrates a component member constituting a display panel unit including a non-self-luminous display unit, and outputs sound from a display surface of the display unit. The excitation unit provides excitation to an excitation member having a predetermined shape and a predetermined color to vibrate the component member fixed to the excitation member by a predetermined fixing method.

[0014] In a speaker device according to one aspect of the present technology, an excitation unit is provided that vibrates a component member constituting a display panel unit including a non-self-luminous display unit, thereby outputting sound from a display surface of the display unit. An excitation member having a predetermined shape and a predetermined color is excited by the excitation unit, causing the component member fixed to the excitation member by a predetermined fixing method to vibrate.

[0015] The display device and the speaker device according to one aspect of the present technology may be independent devices or internal blocks constituting a single device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view showing the appearance of a display device to which the present technology is applied.

[0017] Figure 2 This is a schematic exploded perspective view of a display device to which the present technology is applied.

[0018] Figure 3 It is a cross-sectional view of the main part of a display device having a direct backlight structure.

[0019] Figure 4 is a detailed cross-sectional view of the excitation unit.

[0020] Figure 5 A first example of a configuration of the excitation member is shown.

[0021] Figure 6 A first example of a configuration of the excitation member is shown.

[0022] Figure 7 A first example of a configuration of the excitation member is shown.

[0023] Figure 8 A second example of a configuration of the excitation member is shown.

[0024] Figure 9 A third example of a configuration of the excitation member is shown.

[0025] Figure 10 A fourth example of a configuration of the excitation member is shown.

[0026] Figure 11 A fifth example of the configuration of the excitation member is shown.

[0027] Figure 12 A sixth example of a configuration of the excitation member is shown.

[0028] Figure 13 A seventh example of the configuration of the excitation member is shown.

[0029] Figure 14 An eighth example of a configuration of an excitation member is shown.

[0030] Figure 15 A ninth example of the configuration of the excitation member is shown. DETAILED DESCRIPTION

[0031] <1. Implementation Methods of the Present Technology>

[0032] (Display device configuration)

[0033] Will refer to Figure 1 and Figure 2 A display device to which the present technology is applied is described. Figure 1 is a perspective view showing the appearance of a display device to which the present technology is applied. Figure 2 This is a schematic exploded perspective view of a display device to which the present technology is applied.

[0034] The display device 1 also functions as a speaker device that outputs sound. That is, the display device 1 has a built-in speaker device and is configured to output sound from the display surface where the image is displayed. For example, the display device 1 is a liquid crystal display device and is configured as a television receiver.

[0035] exist Figure 1 , the display device 1 is held by a stand (not shown), and necessary components are arranged in a housing 11. The housing 11 has a bezel 21 on the front side (ie, user side), and a rear base 22 on the rear side (ie, opposite side).

[0036] The bezel 21 is formed in a generally rectangular frame shape. The rear base 22 is formed in a shallow box shape that opens forward. A control board (not shown) is mounted to the rear surface of the rear base 22. The control board serves as a control circuit that supplies current to the display panel unit, supplies drive current to the light source unit such as the backlight, and performs overall control of the display device 1.

[0037] The rear cover 23 is mounted from the rear to the rear base 22. The rear cover 23 is formed in a shallow box shape having an opening at the front, and the control panel is closed by the rear cover 23.

[0038] The liquid crystal display unit 24 is mounted on the inner peripheral side of the frame 21. The liquid crystal display unit 24 is composed of, for example, laminated polarizing plates, glass substrates, liquid crystal layers, etc., and a display surface 24A on which an image is displayed is formed on the front surface thereof.

[0039] The liquid crystal display unit 24 is formed in a substantially rectangular shape except for a portion of the outer periphery which is provided as a display area for displaying an image, and the outer periphery is maintained by the bezel 21. A connection plate (not shown) is provided at the lower end of the liquid crystal display unit 24, and the connection plate is connected to a control board mounted to the rear surface of the rear base 22.

[0040] like Figure 2 As shown, the optical sheet 25 and the diffusion plate 26 are mounted on the rear side of the liquid crystal display unit 24. The optical sheet 25 is mounted on the front side of the diffusion plate 26 in a laminated state.

[0041] The optical sheet 25 has light diffusion and light travel direction control functions, achieving uniformity and improvement of brightness in the liquid crystal display unit 24. The diffusion plate 26 has a function of diffusing light emitted from the light source to achieve uniformity of brightness in the liquid crystal display unit 24.

[0042] For example, the circuit boards 28 are mounted to the front surface of the rear base 22 at intervals in the vertical direction. For example, the circuit boards 28 are formed in a horizontally long shape and are connected to a control board mounted on the rear surface of the rear base 22.

[0043] A light source such as a plurality of light emitting diodes (LEDs) is mounted in the circuit board 28. As the light source, a Figure 3 The LED 51 in the light source is covered with a light source cover 29.

[0044] A reflective sheet 27 is provided on the front side of the rear base 22. Holes for light sources are formed in the reflective sheet 27 so as to be spaced apart from each other in the vertical and horizontal directions. In a state where the reflective sheet 27 is provided on the front side of the rear base 22, a light source (LED) is inserted and provided in each hole for light source, and the light source (LED) protrudes forward from the front surface of the reflective sheet 27.

[0045] In the display device 1 thus configured, when light is emitted from the light source including the plurality of LEDs, the light is diffused by the diffuser plate 26 and incident as backlight on the rear surface of the liquid crystal display unit 24. At this time, a portion of the light emitted from the light source is reflected by the reflective sheet 27 and passes through the diffuser plate 26 to enter the rear surface of the liquid crystal display unit 24.

[0046] (Output of sound from the display surface)

[0047] Incidentally, in a self-luminous display device such as an OLED display device, an image is displayed by a self-luminous display unit provided with a self-luminous element such as an organic light-emitting diode (OLED). Therefore, by directly vibrating the rear surface of the display panel, sound can be output from the display surface of the display panel.

[0048] Meanwhile, non-luminous display devices, such as liquid crystal displays, have a structure that includes a light source unit, such as a backlight, in addition to the display panel. Therefore, if an excitation mechanism for outputting sound is provided between the display panel and the light source unit, there is a problem in that the light supply to the display panel is interrupted by a portion of the excitation mechanism, causing unevenness. Therefore, non-luminous display devices cannot use a structure similar to that of self-luminous display devices, and a technology for outputting sound from the display surface of a non-luminous display unit (e.g., a liquid crystal display unit) is needed.

[0049] Hereinafter, as a display device to which the present technology is applied, a configuration of a non-self-luminous display device capable of outputting sound from a display surface of a non-self-luminous display unit will be described with reference to the drawings.

[0050] (Cross-sectional view of main parts)

[0051] Figure 3 1 is a cross-sectional view of a main portion of a display device 1 having a direct backlight structure. This cross-sectional view of the main portion shows that Figure 1 A portion of a cross section of the display device 1 is shown.

[0052] exist Figure 3 In the embodiment, the circuit board 28 is supported by the rear base 22 provided at the rear thereof. A plurality of LEDs 51 are mounted on the circuit board 28 at predetermined intervals. On the circuit board 28, a reflective sheet 27 is mounted in such a manner that the LEDs 51 are exposed from the holes for the light source. Note that the plurality of LEDs 51 are covered by a light source cover 29.

[0053] The diffusion plate 26 is provided at a certain distance from the LED 51 and diffuses light emitted from the LED 51. The optical sheet 25 is mounted on the diffusion plate 26. In addition, a support member 61 is installed for the purpose of fixing the optical sheet 25 and fixing the liquid crystal display unit 24 mounted on the front surface of the optical sheet 25.

[0054] The liquid crystal display unit 24 is composed of, for example, a laminated polarizing plate, a glass substrate, a liquid crystal layer, and the like, and a display surface 24A on which an image is displayed is formed on the front surface of the liquid crystal display unit 24. In addition, a housing 62 is attached to the outside of the liquid crystal display unit 24 and the support member 61. Note that the housing 62 can be shared with the bezel 21 serving as the exterior of the display device 1.

[0055] In addition, Figure 3 In the embodiment, an excitation unit 101 such as an exciter is mounted on the rear side of the rear base 22 , and an excitation member 121 mounted to the excitation unit 101 is exposed on the reflection sheet 27 mounted to the circuit board 28 .

[0056] For example, the excitation unit 101 and the excitation member 121 are installed to have a relative positional relationship with the LED 51. Specifically, Figure 3 In the example shown in FIG. 2 , when viewed from the display surface 24A side, the excitation member 121 is installed at the intersection of the diagonal lines of a quadrangle with the installation positions of the four LEDs 51 as vertices. That is, for example, one or more excitation units 101 and excitation members 121 may be provided depending on the installation positions and number of the LEDs 51.

[0057] The excitation member 121 has a predetermined shape and a predetermined color. Figure 3 In the embodiment, the exciting member 121 has a pin shape such as a cone whose tip is mounted to the center of the disk, and the tip of the cone contacts the surface of the diffusion plate 26 .

[0058] The excitation member 121 and the diffusion plate 26 are fixed by a predetermined fixing method. The excitation unit 101 can vibrate the diffusion plate 26 (in the direction indicated by arrow A2 in the figure) by excitation of the excitation member 121 (in the direction indicated by arrow A1 in the figure).

[0059] In the display device 1 constructed as described above, the excitation member 121 causes the diffuser panel 26 to vibrate (in the direction indicated by the arrow A2 in the figure) and output sound as a vibration membrane, and the liquid crystal display unit 24 serves as a sound wave transmission component (arrow A3 in the figure) to output the sound transmitted from the diffuser panel 26, so that the sound can be output from the display surface 24A of the liquid crystal display unit 24.

[0060] Figure 4 yes Figure 3 Detailed cross-sectional view of the excitation unit 101 in FIG.

[0061] The excitation unit 101 is configured as an excitation device such as an exciter, and uses the diffusion plate 26 in contact with the excitation member 121 as a vibration membrane to output sound.

[0062] exist Figure 4 In the excitation unit 101 , the yoke 132 , the magnet 133 , and the plate 134 constituting the magnetic circuit convert the electric signal applied to the voice coil 131 into the linear motion of (the bobbin of) the voice coil 131 . The damper 135 supports the voice coil 131 .

[0063] The exciting member 121 is mounted to the voice coil 131. The voice coil 131 can vibrate the exciting member 121 by performing a vertical linear motion (a movement in a direction indicated by an arrow A4 in the drawing) by an amount of stroke corresponding to the electrical signal.

[0064] As described above, in the display device 1, the excitation member 121 for transmitting vibration is arranged to be in contact with the surface of the diffuser plate 26 and is vibrated by the excitation unit 101, so that the diffuser plate 26 vibrates as a vibration membrane, the electrical signal is converted into sound, and the sound can be output from the display surface 24A of the liquid crystal display unit 24.

[0065] In addition, in the display device 1, the excitation member 121 that hardly affects the propagation of light is arranged between the diffuser plate 26 and the backlight unit 42, and the excitation unit 101 is arranged on the back side of the backlight unit 42, thereby reducing the problem of the supply of light from the backlight unit 42 to the liquid crystal panel unit 41 being interrupted by the excitation mechanism.

[0066] It should be noted that in the display device 1, the liquid crystal panel unit 41 is a display panel unit including the liquid crystal display unit 24, the optical sheet 25, the diffuser plate 26, etc., and the backlight unit 42 is a light source unit including the circuit board 28, the LED 51, etc. That is, the diffuser plate 26 is a component member constituting the liquid crystal panel unit 41, and the excitation member 121 is attached to the component member.

[0067] (Structure of the Excitation Component)

[0068] Next, the detailed configuration of the exciting member 121 will be described. Figure 3 and Figure 4 In the embodiment, the case where the excitation member 121 has a pin shape has been shown, but other shapes may be used. In addition, the color of the excitation member 121 and the method for fixing the excitation member 121 to the diffuser plate 26 may use various forms.

[0069] (First Example)

[0070] Figures 5 to 7 A first example of the configuration of the exciting member 121 is shown. Figure 5 A state in which the excitation member 121 is mounted to the excitation unit 101 in the display device 1 is shown.

[0071] exist Figure 5 In the embodiment, the exciting member 121A has a shape in which a triangular plate-shaped protrusion 221A having an acute angle at the tip is formed at the center of a horizontally long rectangular plate having rounded corners. In addition, in the exciting member 121A, the central portion forming the protrusion 221A has a shape convex outward.

[0072] The excitation member 121A is mounted to the excitation unit 101 so that the tip of the protrusion 221A formed on the plate contacts the surface of the diffusion plate 26. Figure 5 In the embodiment, the number of supporting points of the excitation member 121A relative to the diffuser plate 26 is one.

[0073] The color of the excitation member 121A can be any color, and Figure 5 In the middle, it is transparent with high transmittance, making it possible to see through the other side.

[0074] In addition, the color of the excitation member 121A may be the same as the color of the diffuser plate 26 or may be a color corresponding to the color of the diffuser plate 26. For example, when the color of the diffuser plate 26 is milky white, the color of the excitation member 121A may be milky white. Note that the color of the excitation member 121A is not limited to transparent color or milky white, and other colors such as translucent color or white may be used.

[0075] The tip of the protrusion 221A of the excitation member 121A may be fixed to the surface of the diffusion plate 26 or may be in abutting contact with the surface of the diffusion plate 26 .

[0076] For example, when the tip of the protrusion 221A of the excitation member 121A is fixed to the surface of the diffuser plate 26, the top of the protrusion 221A may be completely fixed using a stabilizer, adhesive, screw fastening, or the like. When a stabilizer is used, the tip of the protrusion 221A is fixed to the surface of the diffuser plate 26 via a component such as a metal fitting. Furthermore, for example, when the tip of the protrusion 221A of the excitation member 121A is in abutting contact with the surface of the diffuser plate 26, the tip of the protrusion 221A may be positioned and fixed so as to be in abutting contact with the surface of the diffuser plate 26 using a vibration-damping sheet or the like.

[0077] Figure 6 and Figure 7 The configuration is shown in the case where the excitation member 121A is removed from the excitation unit 101 . Figure 6 A state in which the other side can be seen through is shown in the case where the excitation member 121A has a predetermined color and high transmittance. Figure 7 A state in which the other side cannot be seen through is shown in the case where the excitation member 121A has a predetermined color and low transmittance.

[0078] (Second example)

[0079] Figure 8 A second example of the configuration of the exciting member 121 is shown.

[0080] exist Figure 8 In the embodiment, the exciting member 121B has a shape in which cylindrical protrusions 221B are formed at two positions spaced a predetermined distance from the center of a horizontally long rectangular plate having rounded corners. In addition, in the exciting member 121B, the central portion has a shape that bulges outward.

[0081] The excitation member 121B is mounted to the excitation unit 101 so that the front end of the protrusion 221B formed on the plate contacts the surface of the diffusion plate 26. Figure 8In the embodiment, the number of supporting points of the excitation member 121B relative to the diffuser plate 26 is two.

[0082] The color of the excitation member 121B can be the same as or correspond to the color of the diffuser plate 26, for example, milky white. Furthermore, the front end of the protrusion 221B of the excitation member 121B can be completely fixed to the surface of the diffuser plate 26 using, for example, a stabilizer, or can be positioned and fixed to abut against the surface of the diffuser plate 26 using, for example, a vibration damping sheet.

[0083] (Third Example)

[0084] Figure 9 A third example of the configuration of the exciting member 121 is shown.

[0085] exist Figure 9 In the embodiment, the exciting member 121C has a shape in which a disc-shaped protrusion 221C is formed on the front end side of a rod-shaped cylinder extending from the center of an elliptical plate. The protrusion 221C has six equally spaced protrusions formed on a circumference having a predetermined radius from the center of the disc.

[0086] The excitation member 121C is mounted to the excitation unit 101 so that the surface of the protrusion 221C formed on the elliptical plate contacts the surface of the diffusion plate 26. Figure 9 In the embodiment, the number of supporting points of the excitation member 121C relative to the diffuser plate 26 is six.

[0087] The color of the excitation member 121C can be the same as or correspond to the color of the diffuser plate 26, for example, milky white. Furthermore, the surface of the protrusion 221C of the excitation member 121C can be completely fixed to the surface of the diffuser plate 26 using, for example, a stabilizer, or can be positioned and fixed to abut against the surface of the diffuser plate 26 using, for example, a vibration damping sheet.

[0088] (Fourth Example)

[0089] Figure 10 A fourth example of the configuration of the exciting member 121 is shown.

[0090] exist Figure 10 In the embodiment, the exciting member 121D has a shape in which six rod-shaped cylindrical protrusions 221D are formed at equal intervals along the edge of the elliptical plate. The diameter of the six protrusions 221D near the front end is smaller than the diameter midway toward the front end.

[0091] The excitation member 121D is mounted to the excitation unit 101 so that the front end of the protrusion 221D formed on the elliptical plate contacts the surface of the diffusion plate 26. Figure 10 In the embodiment, the number of supporting points of the excitation member 121D relative to the diffuser plate 26 is six.

[0092] The color of the excitation member 121D can be the same as or correspond to the color of the diffuser plate 26, for example, milky white. Furthermore, the front ends of the six protrusions 221D of the excitation member 121D can be completely fixed to the surface of the diffuser plate 26 using, for example, a stabilizer, or can be positioned and fixed to abut against the surface of the diffuser plate 26 using, for example, a vibration damping sheet.

[0093] (Fifth Example)

[0094] Figure 11 A fifth example of the configuration of the exciting member 121 is shown.

[0095] exist Figure 11 In the embodiment, the excitation member 121E has a hollow oval shape with four protrusions 221E formed at equal intervals. Each protrusion 221E has a substantially triangular shape when viewed from the outer periphery, but its front end has a flat shape, that is, a trapezoidal shape, rather than an acute angle.

[0096] The excitation member 121E is mounted to the excitation unit 101 so that the front end of the protrusion 221E formed on the ellipse contacts the surface of the diffusion plate 26. Figure 11 In the embodiment, the number of supporting points of the excitation member 121E relative to the diffuser plate 26 is four.

[0097] The color of the excitation member 121E can be the same as or correspond to the color of the diffuser plate 26, for example, milky white. Furthermore, the front ends of the four protrusions 221E of the excitation member 121E can be completely fixed to the surface of the diffuser plate 26 using, for example, a stabilizer, or can be positioned and fixed to abut against the surface of the diffuser plate 26 using, for example, a vibration damping sheet.

[0098] (Sixth Example)

[0099] Figure 12 A sixth example of the configuration of the exciting member 121 is shown.

[0100] exist Figure 12 In FIG. 1 , the exciting member 121F has four protrusions 221F formed in the shape of a hollow circular three-dimensional object at equal intervals.

[0101] The protrusion 221F has a shape obtained by cutting out four arcs with a predetermined diameter at equal intervals with the upper surface when viewed from the outer peripheral side. In addition, on the opposite side of the arc forming the protrusion 221F (the lower surface opposite to the upper surface), four arcs with different diameters are cut out at equal intervals.

[0102] The excitation member 121F is mounted to the excitation unit 101 so that the front end of the protrusion 221F formed on the three-dimensional object contacts the surface of the diffusion plate 26. Figure 12In the embodiment, the number of supporting points of the excitation member 121F relative to the diffuser plate 26 is four.

[0103] The color of the excitation member 121F can be the same as or correspond to the color of the diffuser plate 26, for example, milky white. Furthermore, the front ends of the four protrusions 221F of the excitation member 121F can be completely fixed to the surface of the diffuser plate 26 using, for example, a stabilizer, or can be positioned and fixed to abut against the surface of the diffuser plate 26 using, for example, a vibration damping sheet.

[0104] (Seventh Example)

[0105] Figure 13 A seventh example of the configuration of the exciting member 121 is shown.

[0106] exist Figure 13 In the embodiment, the exciting member 121G has four protrusions 221G formed in the shape of a hollow circular three-dimensional object at equal intervals.

[0107] The protrusion 221G has a shape obtained by cutting out four arcs of a predetermined diameter at equal intervals from the upper surface when viewed from the outer circumference. In addition, on the opposite side of the arc forming the protrusion 221G (the lower surface opposite to the upper surface), four arcs of different diameters are cut out at equal intervals and shifted at a predetermined angle.

[0108] The excitation member 121G is attached to the excitation unit 101 so that the front end of the protrusion 221G formed on the three-dimensional object contacts the surface of the diffusion plate 26. Figure 13 In the embodiment, the number of supporting points of the excitation member 121G relative to the diffuser plate 26 is four.

[0109] The color of the excitation member 121G can be the same as or correspond to the color of the diffuser plate 26, for example, milky white. Furthermore, the front ends of the four protrusions 221G of the excitation member 121G can be completely fixed to the surface of the diffuser plate 26 using, for example, a stabilizer, or can be positioned and fixed to abut against the surface of the diffuser plate 26 using, for example, a vibration damping sheet.

[0110] (Eighth Example)

[0111] Figure 14 An eighth example of the configuration of the excitation member 121 is shown.

[0112] exist Figure 14 In the embodiment, the exciting member 121H has a hollow ellipsoidal shape, and four protrusions 221H are formed on the hollow ellipsoidal shape at equal intervals. The protrusions 221H each have a rod-like shape with a rounded tip.

[0113] The excitation member 121H is mounted to the excitation unit 101 so that the front end of the protrusion 221H formed on the ellipsoid contacts the surface of the diffusion plate 26. Figure 14 In the embodiment, the number of supporting points of the excitation member 121H relative to the diffuser plate 26 is four.

[0114] The color of the excitation member 121H can be the same as or correspond to the color of the diffuser plate 26, for example, milky white. Furthermore, the front ends of the four protrusions 221H of the excitation member 121H can be completely fixed to the surface of the diffuser plate 26 using, for example, a stabilizer, or can be positioned and fixed to abut against the surface of the diffuser plate 26 using, for example, a vibration damping sheet.

[0115] (Example 9)

[0116] Figure 15 A ninth example of the configuration of the exciting member 121 is shown.

[0117] exist Figure 15 In the embodiment, the exciting member 121I has a shape in which a single protrusion 221I is formed at the center of the disk. The protrusion 221I is in a rod-like shape with a rounded tip.

[0118] The excitation member 121I is mounted to the excitation unit 101 so that the front end of the protrusion 221I formed on the disk contacts the surface of the diffusion plate 26. Figure 15 In the embodiment, the number of supporting points of the excitation member 121I relative to the diffusion plate 26 is one.

[0119] The color of the excitation member 121I can be the same as or similar to the color of the diffuser plate 26, for example, milky white. Furthermore, the front end of the protrusion 221I of the excitation member 121I can be completely fixed to the surface of the diffuser plate 26 using, for example, a stabilizer, or can be positioned and fixed to abut against the surface of the diffuser plate 26 using, for example, a vibration damping sheet.

[0120] As described above, the excitation member 121 having a predetermined shape and a predetermined color is fixed to the diffuser plate 26 by a predetermined fixing method. Thus, when the excitation unit 101 vibrates the excitation member 121, the vibration is transmitted to the diffuser plate 26 through the excitation member 121, the diffuser plate 26 vibrates as a vibration membrane, and sound can be output from the display surface 24A of the liquid crystal display unit 24.

[0121] Furthermore, when installing the excitation member 121, the influence of shadows and chatter needs to be considered, but the above-mentioned excitation members 121A to 121I have predetermined shapes and predetermined colors and are fixed to the diffuser panel 26 by a predetermined fixing method to provide countermeasures against shadows and chatter.

[0122] For example, a shadow countermeasure may be applied to the excitation member 121 by setting the color to the same color as the diffusion plate 26 (eg, milky white) or by setting the shape to a shape less likely to generate a shadow caused by light from the backlight unit 42 .

[0123] Chattering sound is a type of distortion that occurs in a speaker device due to unstable distortion caused by contact or foreign matter, and can occur when the excitation member 121 is not sufficiently fixed to the diffuser 26. The display device 1 can provide a countermeasure against chattering sound by fixing the front end of the protrusion 221 of the excitation member 121 to the surface of the diffuser 26 using a predetermined fixing method such as a stabilizer, adhesive, screw fastening, or a vibration-damping sheet.

[0124] For example, the inventors of the present technology have confirmed through detailed simulations that by using Figure 12 The shape shown in FIG and having the same milky white excitation member 121F as the diffuser plate 26 can sufficiently remove the shadow. Similarly, for example, it has been confirmed that by using the Figure 13 The excitation member 121G having the shape shown in FIG and having the same milky white color as the diffusion plate 26 can sufficiently remove the shadow.

[0125] In addition, for example, Figure 14 The exciting member 121H of the shape shown and having Figure 15 With the exciting member 121I of the shape shown, it has been confirmed that the shadow can also be sufficiently removed, although it is difficult to fix the adhesive surface due to the shape of the protrusions 221H and 221I, so there may be some chatter.

[0126] Note that the excitation members 121A to 121I are examples of the shape of the excitation member 121 , and other shapes may be used as long as the shape has a countermeasure for shadows.

[0127] <2. Modifications>

[0128] (Configuration of speaker device)

[0129] Although the configuration of the display device 1 has been described above, the display device 1 also functions as a speaker device that outputs sound, and the configuration including the excitation unit 101 and the excitation member 121 can be regarded as a speaker device. That is, the speaker device including the excitation unit 101, the excitation member 121, and the like can output sound by using the diffuser plate 26 serving as a component member constituting the liquid crystal panel unit 41 as a vibration membrane.

[0130] (Configuration using piezoelectric element)

[0131] In the above description, the configuration of vibrating the diffuser 26 using the excitation unit 101 and the excitation member 121 has been described, but sound may be output by vibrating the diffuser 26 using a piezoelectric element (piezoelectric element). For example, the piezoelectric element may be fixed to the diffuser 26 using double-sided tape or the like.

[0132] (Installation location of the excitation component)

[0133] In the above description, the excitation member 121 is installed in a relative position relative to the LED 51. However, the excitation member 121 can be installed at any position in consideration of the effects of shadows and chatter. In this case, one or more excitation units 101 and excitation members 121 may be provided in consideration of the effects of shadows and chatter.

[0134] (Other configurations)

[0135] In the above description, the case where the excitation member 121 is mounted has been described by taking the diffuser plate 26 as an example of a component constituting the liquid crystal panel unit 41. However, the component to which the excitation member 121 is mounted is not limited to the diffuser plate 26 and may be another component. In addition, the color of the excitation member 121 is not limited to one color and may have a plurality of colors.

[0136] As described above, according to the present technology, in a non-luminous display device such as a liquid crystal display device, sound can be output from the display surface of the non-luminous display unit such as the liquid crystal display unit. Therefore, for example, a sound image can be positioned on the display surface of the non-luminous display unit.

[0137] Note that the embodiments of the present technology are not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present technology.

[0138] Furthermore, the effects described in this specification are merely examples and are not limiting, and other effects may be provided.

[0139] It should be noted that the present technology can also have the following configurations. (1)

[0141] A display device, comprising:

[0142] Display panel unit, including a non-self-luminous display unit;

[0143] a light source unit that illuminates the display panel unit with light from the back; and

[0144] an exciting unit that vibrates constituent members constituting the display panel unit and outputs sound from a display surface of the display unit; wherein,

[0145] The excitation unit provides excitation to an excitation member having a predetermined shape and a predetermined color to vibrate a constituent member fixed to the excitation member by a predetermined fixing method. (2)

[0147] The display device according to (1), wherein

[0148] The constituent members include a diffusion plate that diffuses light from the light source unit. (3)

[0150] The display device according to (1) or (2), wherein

[0151] The excitation member has a protrusion that contacts a surface of the constituent member. (4)

[0153] The display device according to (3), wherein

[0154] The protrusion includes one or more protrusions, and the one or more protrusions serve as contact points with the surface of the constituent member. (5)

[0156] The display device according to any one of (1) to (4), wherein

[0157] The excitation member has a color that is the same as or corresponds to the color of the component member. (6)

[0159] The display device according to (5), wherein

[0160] The exciting component is milky white. (7)

[0162] The display device according to any one of (1) to (6), wherein

[0163] The excitation member is fixed to the component member or is in abutting contact with the component member. (8)

[0165] The display device according to (7), wherein

[0166] The excitation member is secured to the component members by stabilizers, adhesives, or screw fasteners. (9)

[0168] The display device according to (7), wherein

[0169] The exciting member is positioned and fixed in abutting contact with the component member via the vibration damping sheet. (10)

[0171] The display device according to any one of (1) to (9), wherein

[0172] The display unit includes a liquid crystal display unit; and

[0173] The light source unit includes a direct-type backlight. (11)

[0175] A speaker device, comprising:

[0176] an exciting unit that vibrates constituent members constituting a display panel unit including a non-self-luminous display unit and outputs sound from a display surface of the display unit; wherein,

[0177] The excitation unit provides excitation to an excitation member having a predetermined shape and a predetermined color to vibrate a constituent member fixed to the excitation member by a predetermined fixing method. (12)

[0179] The speaker device according to (11), wherein

[0180] The constituent members include a diffusion plate that diffuses light from a light source unit that irradiates the display panel unit with light from the back. (13)

[0182] The speaker device according to (11) or (12), wherein

[0183] The excitation member has a protrusion that contacts a surface of the constituent member. (14)

[0185] The speaker device according to (13), wherein

[0186] The protrusion includes one or more protrusions, and the one or more protrusions serve as contact points with the surface of the constituent member. (15)

[0188] The speaker device according to any one of (1) to (14), wherein

[0189] The excitation member has a color that is the same as or corresponds to the color of the component member. (16)

[0191] The speaker device according to (15), wherein

[0192] The exciting component is milky white. (17)

[0194] The speaker device according to any one of (11) to (16), wherein

[0195] The excitation member is fixed to the component member or is in abutting contact with the component member. (18)

[0197] The speaker device according to (17), wherein

[0198] The excitation member is secured to the component members by stabilizers, adhesives, or screw fasteners. (19)

[0200] The speaker device according to (17), wherein

[0201] The exciting member is positioned and fixed in abutting contact with the component member via the vibration damping sheet. (20)

[0203] The speaker device according to any one of (11) to (19), wherein

[0204] The display unit includes a liquid crystal display unit; and

[0205] The light source unit includes a direct-type backlight.

[0206] List of Figure Numbers

[0207] 1 Display device

[0208] 11 Housing

[0209] 21 Border

[0210] 22 rear base

[0211] 23 Back cover

[0212] 24 LCD units

[0213] 24A display surface

[0214] 25 optical sheets

[0215] 26 Diffuser Plate

[0216] 27 reflective sheet

[0217] 28 circuit boards

[0218] 29 Light source cover

[0219] 41 LCD panel unit

[0220] 42 Backlight unit

[0221] 51 LED

[0222] 121, 121A to 121I Excitation components

[0223] 131 Voice Coil

[0224] 132 yoke

[0225] 133 Magnet

[0226] 134 boards

[0227] 135 Damper

[0228] 221, 221A to 221I protrusions.

Claims

1. A display device, comprising: Display panel unit, including a non-self-luminous display unit; a light source unit for irradiating the display panel unit with light from the back side; as well as an exciting unit that vibrates constituent members constituting the display panel unit and outputs sound from a display surface of the display unit; wherein, the excitation unit provides excitation to an excitation member having a predetermined shape and a predetermined color to vibrate the constituent member fixed to the excitation member by a predetermined fixing method; In which, the light source unit includes multiple LEDs; and the excitation unit and the excitation component are arranged as follows: when observed from the display surface side of the display unit, the excitation component is installed at the intersection of the diagonals of a quadrilateral with the installation positions of the four LEDs as vertices, so that the excitation component is arranged between the display unit and the light source unit.

2. The display device according to claim 1, wherein The component members include a diffusion plate that diffuses light from the light source unit.

3. The display device according to claim 1, wherein The excitation member has a protrusion that contacts a surface of the constituent member.

4. The display device according to claim 3, wherein The protrusion includes one or more protrusions, and the one or more protrusions serve as points of contact with the surface of the constituent member.

5. The display device according to claim 1, wherein The excitation member has a color that is the same as or corresponds to a color of the component member. The display device according to claim 5 , wherein: The exciting component is milky white.

7. The display device according to claim 1, wherein The excitation member is fixed to the component member or is in abutting contact with the component member.

8. The display device according to claim 7, wherein: The excitation member is fixed to the component member by stabilizers, adhesives or screw fasteners.

9. The display device according to claim 7, wherein: The exciting member is positioned and fixed by a vibration damping sheet so as to be in abutting contact with the component member.

10. The display device according to claim 1, wherein The display unit includes a liquid crystal display unit; and The light source unit includes a direct-type backlight source.

11. A speaker device comprising: an exciting unit that vibrates constituent members constituting a display panel unit including a non-self-luminous display unit and outputs sound from a display surface of the display unit; wherein, The excitation unit provides excitation to an excitation member having a predetermined shape and a predetermined color so as to vibrate the component member fixed to the excitation member by a predetermined fixing method; wherein the light source unit that irradiates the display panel unit with light from the back side includes a plurality of LEDs; and the excitation unit and the excitation member are arranged as follows: when viewed from the display surface side of the display unit, the excitation member is installed at the intersection of diagonals of a quadrilateral with the installation positions of the four LEDs as vertices, so that the excitation member is arranged between the display unit and the light source unit.

12. The speaker device according to claim 11, wherein The component members include a diffusion plate that diffuses light from a light source unit that irradiates the display panel unit with light from the back.

13. The speaker device according to claim 11, wherein The excitation member has a protrusion that contacts a surface of the constituent member.

14. The speaker device according to claim 13, wherein The protrusion includes one or more protrusions, and the one or more protrusions serve as points of contact with the surface of the constituent member.

15. The speaker device according to claim 11, wherein The excitation member has a color that is the same as or corresponds to a color of the component member.

16. The speaker device according to claim 15, wherein The exciting component is milky white.

17. The speaker device according to claim 11, wherein The excitation member is fixed to the component member or is in abutting contact with the component member.

18. The speaker device according to claim 17, wherein The excitation member is fixed to the component member by stabilizers, adhesives or screw fasteners.

19. The speaker device according to claim 17, wherein The exciting member is positioned and fixed by a vibration damping sheet so as to be in abutting contact with the component member.

20. The speaker device according to claim 12, wherein The display unit includes a liquid crystal display unit; and The light source unit includes a direct-type backlight source.

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