Display device and speaker device

Abstract

The present technology relates to a display device and a speaker device that are capable of outputting a sound from a display surface of a non-self-emitting display panel. Provided is a display device that includes: a display-panel unit containing non-self-emitting display cells; a light-source unit that radiates light onto the display-panel unit from a back surface thereof; and a vibration unit that causes a sound to be output from display surfaces of the display cells by causing constituent members constituting the display-panel unit to vibrate, wherein, by causing vibration members having a prescribed shape and a prescribed color to vibrate, the vibration unit causes the constituent members secured to the vibration members by means of a prescribed securing method to vibrate. The present invention can be applied, for example, to a liquid crystal display device.

Description

Technical Field

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

Background Art

[0002] The thinning and weight reduction of display devices such as displays have been rapidly expanding. Along with this, the thinning and weight reduction of speaker devices have also progressed, and it has been proposed to use a flat panel speaker instead of a cone type speaker.

[0003] A technology has been disclosed in which a self-emitting display device incorporates a flat panel speaker and outputs sound from the display surface on which an image is displayed (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, even in non-self-emitting display devices, there is a demand for outputting sound from the display surface on which an image is displayed, but at present, such a technical method has not been established.

[0006] The present technology has been made in view of such a situation, and enables sound to be output from the display surface of a non-self-emitting display panel.

Means for Solving the Problems

[0007] A display device according to one aspect of the present technology includes a display panel unit including a non-self-emitting display cell, a light source unit that irradiates light from the back surface to the display panel unit, and a vibration unit that vibrates a constituent member constituting the display panel unit to output sound from a display surface of the display cell. The vibration unit is a display device that vibrates the constituent member fixed to the vibration member by a predetermined fixing method by vibrating a vibration member having a predetermined shape and a predetermined color.

[0008] In a display device according to one aspect of the present technology, there are provided a display panel unit including a non-self-emitting display cell, a light source unit that irradiates light from the back surface to the display panel unit, and a vibration unit that vibrates a constituent member constituting the display panel unit to output sound from a display surface of the display cell. By the vibration unit, the vibration member having a predetermined shape and a predetermined color is vibrated, so that the constituent member fixed to the vibration member by a predetermined fixing method is vibrated.

[0009] A speaker device according to one aspect of the present technology includes a vibration unit that vibrates a constituent member constituting a display panel unit including a non-self-emitting display cell to output sound from a display surface of the display cell. The vibration unit is a speaker device that vibrates the constituent member fixed to the vibration member by a predetermined fixing method by vibrating a vibration member having a predetermined shape and a predetermined color.

[0010] In a speaker device according to one aspect of the present technology, there is provided a vibration unit that vibrates a constituent member constituting a display panel unit including a non-self-emitting display cell to output sound from a display surface of the display cell. By the vibration unit, the vibration member having a predetermined shape and a predetermined color is vibrated, so that the constituent member fixed to the vibration member by a predetermined fixing method is vibrated.

[0011] The display device and the speaker device according to one aspect of the present technology may be independent devices or internal blocks constituting one device.

Brief Description of Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Embodiments for Carrying Out the Invention

[0013] <1. Embodiments of the Present Technology>

[0014] (Configuration of the Display Device) With reference to FIGS. 1 and 2, a display device to which the present technology is applied will be described. FIG. 1 is a perspective view showing the appearance of a display device to which the present technology is applied. FIG. 2 is a perspective view when the display device to which the present technology is applied is schematically disassembled.

[0015] The display device 1 also serves as a speaker device that outputs sound. That is, the display device 1 incorporates a speaker device and is configured to output sound from the display surface on which the video is displayed. For example, the display device 1 is a liquid crystal display device and is configured as a television receiver.

[0016] In FIG. 1, the display device 1 is held by a stand (not shown), and various required components are arranged on its housing 11. The housing 11 has a bezel 21 located on the front side facing the user and a back chassis 22 located on the opposite rear side.

[0017] The bezel 21 is formed in a substantially rectangular frame shape. The back chassis 22 is formed in a shallow box shape with an opening at the front. A control board (not shown) is attached to the rear surface of the back chassis 22. The control board functions as a control circuit that supplies current to the display panel section, supplies drive current to a light source section such as a backlight, and controls the entire display device 1.

[0018] A rear cover 23 is attached to the back chassis 22 from the rear. The rear cover 23 is formed in a shallow box shape with an opening at the front, and the control board is closed by the rear cover 23.

[0019] A liquid crystal display cell 24 is attached to the inner peripheral side of the bezel 21. The liquid crystal display cell 24 is configured by laminating, for example, a polarizing plate, a glass substrate, a liquid crystal layer, etc., and a display surface 24A on which an image is displayed is formed on its front surface.

[0020] The liquid crystal display cell 24 is formed in a substantially rectangular shape, and a portion other than the outer peripheral portion is provided as a display area where an image is displayed, and the outer peripheral portion is held by the bezel 21. A connection board (not shown) is provided at the lower end of the liquid crystal display cell 24, and this connection board is connected to a control board attached to the rear surface of the back chassis 22.

[0021] As shown in FIG. 2, an optical sheet 25 and a diffusion plate 26 are attached to the rear side of the liquid crystal display cell 24. The optical sheet 25 is attached in a laminated state on the front side of the diffusion plate 26.

[0022] The optical sheet 25 has functions such as a light diffusion function and control of the light traveling direction, and aims to improve the luminance uniformity and luminance in the liquid crystal display cell 24. The diffusion plate 26 has a function of diffusing the light irradiated from the light source to achieve luminance uniformity in the liquid crystal display cell 24.

[0023] On the front surface of the back chassis 22, a circuit board 28 is attached, for example, at intervals in the vertical direction. The circuit board 28 is formed, for example, in a horizontally long shape and is connected to a control board attached to the rear surface of the back chassis 22.

[0024] A plurality of light sources such as LEDs (Light Emitting Diodes) are mounted on the circuit board 28. As this light source, the LED 51 in FIG. 3 described later is used and is covered by a light source cover 29.

[0025] A reflection sheet 27 is disposed on the front side of the back chassis 22. Light source holes are formed in the reflection sheet 27 at intervals in the vertical and horizontal directions. In a state where the reflection sheet 27 is disposed on the front side of the back chassis 22, light sources (LEDs) are respectively inserted into the light source holes and disposed, and the light sources (LEDs) protrude forward from the front surface of the reflection sheet 27.

[0026] In the display device 1 configured as described above, when light is emitted from a light source including a plurality of LEDs, the light is diffused by the diffusion plate 26 and is incident on the back side of the liquid crystal display cell 24 as a backlight. At this time, a part of the light emitted from the light source is reflected by the reflection sheet 27 and is incident on the back side of the liquid crystal display cell 24 through the diffusion plate 26.

[0027] (Output of sound from the display surface) By the way, in a self-emitting display device such as an OLED display device, an image is displayed by a self-emitting display cell in which a self-emitting element such as an OLED (Organic Light Emitting Diode) is arranged. Therefore, by directly vibrating the back surface of the display panel, sound can be output from the display surface of the display panel.

[0028] On the other hand, a non-self-emitting display device such as a liquid crystal display device has a structure in which a light source unit such as a backlight is provided in addition to the display panel. Therefore, if a vibration mechanism for outputting sound is arranged between the display panel and the light source unit, there is a problem that the supply of light to the display panel is blocked at the part of the vibration mechanism and becomes non-uniform. Therefore, in a non-self-emitting display device, the same structure as that of a self-emitting display device cannot be used, and a technique for outputting sound from the display surface of a non-self-emitting display cell such as a liquid crystal display cell has been demanded.

[0029] Hereinafter, with reference to the drawings, as a display device to which the present technology is applied, the configuration of a non-self-emitting display device capable of outputting sound from the display surface of a non-self-emitting display cell will be described.

[0030] (Cross-sectional view of the main part) FIG. 3 is a cross-sectional view of the main part of a display device 1 having a direct-lit backlight structure. This cross-sectional view of the main part shows a part of the cross-section when the display device 1 in FIG. 1 is viewed from the side.

[0031] In FIG. 3, the circuit board 28 is supported by a back chassis 22 provided on the back surface thereof. A plurality of LEDs 51 are mounted on the circuit board 28 so as to be arranged at a predetermined interval. A reflection sheet 27 is attached on the circuit board 28 so 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.

[0032] The diffusion plate 26 is provided at a position a certain distance away from the LED 51 and diffuses the light emitted from the LED 51. An optical sheet 25 is attached onto the diffusion plate 26. Further, a support member 61 is attached for the purpose of fixing the optical sheet 25 and fixing the liquid crystal display cell 24 attached to the front surface thereof.

[0033] The liquid crystal display cell 24 is configured by laminating, for example, a polarizing plate, a glass substrate, a liquid crystal layer, etc., and a display surface 24A on which an image is displayed is formed on the front surface thereof. Further, a cabinet 62 is attached to the outside of the liquid crystal display cell 24 and the support member 61. Note that the cabinet 62 may be shared with the bezel 21 which is the exterior of the display device 1.

[0034] Also, in FIG. 3, a vibration unit 101 such as an exciter is attached to the back side of the back chassis 22, and a vibration member 121 attached to the vibration unit 101 is exposed on a reflection sheet 27 attached to the circuit board 28.

[0035] For example, the vibration unit 101 and the vibration member 121 are attached so as to have a relative positional relationship with the LED 51. Specifically, in the example of FIG. 3, when viewed from the display surface 24A side, the vibration member 121 is installed at a position where the diagonals of a quadrilateral with the installation positions of the four LEDs 51 as vertices intersect. That is, the vibration unit 101 and the vibration member 121 can be provided singly or in plurality, for example, according to the installation position and number of the LEDs 51.

[0036] The vibration member 121 has a predetermined shape and a predetermined color. For example, in FIG. 3, the vibration member 121 has a pin shape in which a conical shape with a pointed tip is attached to the center of a disc, and the tip of the cone is in contact with the surface of the diffusion plate 26.

[0037] The vibration member 121 and the diffusion plate 26 are fixed by a predetermined fixing method. The vibration unit 101 can vibrate the diffusion plate 26 (vibrate in the direction indicated by the arrow A2 in the figure) by vibrating the vibration member 121 (vibrating in the direction indicated by the arrow A1 in the figure).

[0038] In the display device 1 configured as described above, the diffusion plate 26 is vibrated by the vibration member 121 (vibrated in the direction indicated by the arrow A2 in the figure), and sound is output as a diaphragm. At the same time, the liquid crystal display cell 24 functions as a sound wave transmission component (arrow A3 in the figure) and outputs the sound transmitted from the diffusion plate 26, so that sound can be output from the display surface 24A of the liquid crystal display cell 24.

[0039] Figure 4 is a detailed cross-sectional view of the vibration unit 101 of Figure 3.

[0040] The vibration unit 101 is configured as a vibration device such as an exciter, and uses the diffusion plate 26 in contact with the vibration member 121 as a diaphragm to output sound.

[0041] In Figure 4, in the vibration unit 101, the yoke 132, the magnet 133, and the plate 134 that constitute the magnetic circuit convert the electrical signal applied to the voice coil 131 into a linear motion of the voice coil 131 (the bobbin thereof). The damper 135 supports the voice coil 131.

[0042] The vibration member 121 is attached to the voice coil 131. By moving the voice coil 131 in a linear motion in the vertical direction (moving in the direction indicated by the arrow A4 in the figure) with a stroke amount corresponding to the electrical signal, the vibration member 121 can be vibrated.

[0043] In this way, in the display device 1, the vibration member 121 for transmitting vibration is provided so as to be in contact with the surface of the diffusion plate 26 and vibrated by the vibration unit 101, so that the diffusion plate 26 vibrates as a diaphragm, converting the electrical signal into sound and outputting it from the display surface 24A of the liquid crystal display cell 24.

[0044] Furthermore, in the display device 1, a vibration member 121 that has little influence on the propagation of light is disposed between the diffusion plate 26 and the backlight unit 42, and the vibration unit 101 is disposed on the back surface of the backlight unit 42, thereby reducing the problem that the supply of light from the backlight unit 42 to the liquid crystal panel unit 41 is blocked by the vibration mechanism.

[0045] In the display device 1, the liquid crystal panel unit 41 includes a liquid crystal display cell 24, an optical sheet 25, a diffusion plate 26, etc., and is a display panel unit. The backlight unit 42 is a light source unit including a circuit board 28, an LED 51, etc. That is, the diffusion plate 26 is a component constituting the liquid crystal panel unit 41, and the vibration member 121 is attached to the component.

[0046] (Configuration of the vibration member) Next, the detailed configuration of the vibration member 121 will be described. In FIGS. 3 and 4 described above, the case where the vibration member 121 has a pin shape is shown as the shape of the vibration member 121, but other shapes can be used. Also, various forms can be used for the color of the vibration member 121 and the fixing method of the vibration member 121 to the diffusion plate 26.

[0047] (First example) FIGS. 5 to 7 show a first example of the configuration of the vibration member 121. FIG. 5 shows a state where the vibration member 121 is attached to the vibration unit 101 in the display device 1.

[0048] In FIG. 5, the vibration member 121A has a shape in which a triangular protrusion 221A with an acute tip is formed at the center of a horizontally long square plate with rounded corners. Also, in the vibration member 121A, the central portion where the protrusion 221A is formed has a shape that bulges outward.

[0049] The vibration member 121A is attached to the vibration unit 101 such that the tip of the protrusion 221A formed on the plate thereof is in contact with the surface of the diffusion plate 26. That is, in FIG. 5, the number of support points of the vibration member 121A with respect to the diffusion plate 26 is one point.

[0050] The color of the vibration member 121A can be any color. In FIG. 5, since it is in a transparent state with a high transmittance, the opposite side can be seen through.

[0051] Further, the color of the vibration member 121A may be the same as or corresponding to the color of the diffusion plate 26. For example, when the color of the diffusion plate 26 is milky white, the color of the vibration member 121A can be milky white. Note that the color of the vibration member 121A is not limited to a transparent color or a milky white color, and other colors such as a translucent color or a white color may be used.

[0052] The tip of the protrusion 221A of the vibration member 121A may be fixed to the surface of the diffusion plate 26, or may be in a state of being applied to the surface of the diffusion plate 26.

[0053] For example, when fixing the tip of the protrusion 221A of the vibration member 121A to the surface of the diffusion plate 26, it can be completely fixed using a stabilizer, an adhesive, or screw fastening. When using a stabilizer, for example, the tip of the protrusion 221A is fixed to the surface of the diffusion plate 26 by a component such as a metal fitting. Further, for example, when the tip of the protrusion 221A of the vibration member 121A is in a state of being applied to the surface of the diffusion plate 26, it can be positioned and fixed in the applied state using a vibration damping sheet or the like.

[0054] FIG. 6 and FIG. 7 show the configuration when the vibration member 121A is removed from the vibration unit 101. FIG. 6 shows a state in which the vibration member 121A has a predetermined color and the opposite side is visible through because its transmittance is high. FIG. 7 shows a state in which the vibration member 121A has a predetermined color and is not visible through because its transmittance is low.

[0055] (Second example) FIG. 8 shows a second example of the configuration of the vibration member 121.

[0056] In FIG. 8, the vibration member 121B has a shape in which cylindrical protrusions 221B are formed at two positions each separated by a predetermined distance from the center of a horizontally long rectangular plate with rounded corners. Further, in the vibration member 121B, the central portion has a shape that bulges outward.

[0057] The vibration excitation member 121B is attached to the vibration excitation unit 101 such that the tip of the protrusion 221B formed on its plate contacts the surface of the diffusion plate 26. That is, in FIG. 8, the number of support points of the vibration excitation member 121B with respect to the diffusion plate 26 is two points.

[0058] The color of the vibration excitation member 121B can be the same as or corresponding to the color of the diffusion plate 26, such as milky white, for example. Also, the vibration excitation member 121B may completely fix the tip of its protrusion 221B to the surface of the diffusion plate 26 using, for example, a stabilizer or the like, or may be positioned and fixed in a state where it is applied to the surface of the diffusion plate 26 using, for example, a vibration damping sheet or the like.

[0059] (The third example) FIG. 9 shows a third example of the configuration of the vibration excitation member 121.

[0060] In FIG. 9, the vibration excitation member 121C has a shape in which a disc-shaped protrusion 221C is formed on the tip side of a rod-shaped cylinder extending from the center of an elliptical plate. On this protrusion 221C, six protrusions are formed at equal intervals on a circumference having a predetermined radius from the center of the disc.

[0061] The vibration excitation member 121C is attached to the vibration excitation unit 101 such that the surface of the protrusion 221C formed on its elliptical plate contacts the surface of the diffusion plate 26. That is, in FIG. 9, the number of support points of the vibration excitation member 121C with respect to the diffusion plate 26 is six points.

[0062] The color of the vibration excitation member 121C can be the same as or corresponding to the color of the diffusion plate 26, such as milky white, for example. Also, the vibration excitation member 121C may completely fix the surface of its protrusion 221C to the surface of the diffusion plate 26 using, for example, a stabilizer or the like, or may be positioned and fixed in a state where it is applied to the surface of the diffusion plate 26 using, for example, a vibration damping sheet or the like.

[0063] (The fourth example) FIG. 10 shows a fourth example of the configuration of the vibration excitation member 121.

[0064] In FIG. 10, the vibration member 121D has a shape in which six rod-shaped cylindrical protrusions 221D are formed at equal intervals along the edge of an elliptical plate. Near the tip of each of the six protrusions 221D, the diameter becomes smaller compared to the diameter up to the middle thereof.

[0065] The vibration member 121D is attached to the vibration unit 101 such that the tips of the protrusions 221D formed on the elliptical plate are in contact with the surface of the diffusion plate 26. That is, in FIG. 10, the number of support points of the vibration member 121D with respect to the diffusion plate 26 is six.

[0066] The color of the vibration member 121D can be the same as or corresponding to the color of the diffusion plate 26, such as milky white, for example. Also, the tips of the six protrusions 221D of the vibration member 121D may be completely fixed to the surface of the diffusion plate 26 using, for example, a stabilizer or the like, or may be positioned and fixed in a state of being applied to the surface of the diffusion plate 26 using, for example, a vibration damping sheet or the like.

[0067] (The fifth example) FIG. 11 shows a fifth example of the configuration of the vibration member 121.

[0068] In FIG. 11, the vibration member 121E has a shape in which four protrusions 221E are formed at equal intervals on a hollow elliptical body. The protrusion 221E has a shape that is substantially triangular when viewed from the outer peripheral side, but the tip side thereof is not an acute angle shape but a flat shape, that is, a trapezoidal shape.

[0069] The vibration member 121E is attached to the vibration unit 101 such that the tips of the protrusions 221E formed on the elliptical body are in contact with the surface of the diffusion plate 26. That is, in FIG. 11, the number of support points of the vibration member 121E with respect to the diffusion plate 26 is four.

[0070] The color of the vibration member 121E can be the same as or corresponding to that of the diffusion plate 26, such as milky white. Further, the tips of the four protrusions 221E of the vibration member 121E may be completely fixed to the surface of the diffusion plate 26 using, for example, a stabilizer or the like, or may be positioned and fixed in a state of being applied to the surface of the diffusion plate 26 using, for example, a vibration damping sheet or the like.

[0071] (Example 6) FIG. 12 shows a sixth example of the configuration of the vibration member 121.

[0072] In FIG. 12, the vibration member 121F has a shape in which four protrusions 221F are formed at equal intervals as a hollow circular solid.

[0073] The protrusion 221F has a shape in which four arcs of a predetermined diameter are cut at equal intervals as viewed from the outer peripheral side. Further, on the opposite side of the arc forming the protrusion 221F (the lower surface on the opposite side of the upper surface), four arcs of different diameters are cut at equal intervals.

[0074] The vibration member 121F is attached to the vibration unit 101 such that the tips of the protrusions 221F formed on the solid contact the surface of the diffusion plate 26. That is, in FIG. 12, the number of support points of the vibration member 121F with respect to the diffusion plate 26 is four.

[0075] The color of the vibration member 121F can be the same as or corresponding to that of the diffusion plate 26, such as milky white. Further, the tips of the four protrusions 221F of the vibration member 121F may be completely fixed to the surface of the diffusion plate 26 using, for example, a stabilizer or the like, or may be positioned and fixed in a state of being applied to the surface of the diffusion plate 26 using, for example, a vibration damping sheet or the like.

[0076] (Example 7) FIG. 13 shows a seventh example of the configuration of the vibration member 121.

[0077] In FIG. 13, the vibration member 121G has a shape in which four protrusions 221G are formed at equal intervals as a hollow circular solid.

[0078] The protruding portion 221G has a shape in which four arcs of a predetermined diameter are cut off at equal intervals when viewed from the outer peripheral side, as if seen from the upper surface side. Further, on the opposite side of the arc forming the protruding portion 221G (the lower surface on the opposite side of the upper surface), four arcs of different diameters are cut off at equal intervals with a predetermined angle shift.

[0079] The vibration member 121G is attached to the vibration portion 101 such that the tip of the protruding portion 221G formed on the three-dimensional body is in contact with the surface of the diffusion plate 26. That is, in FIG. 13, the number of support points of the vibration member 121G with respect to the diffusion plate 26 is four.

[0080] The color of the vibration member 121G can be the same as or corresponding to the color of the diffusion plate 26, such as milky white, for example. Further, the vibration member 121G may completely fix the tips of the four protruding portions 221G to the surface of the diffusion plate 26 using, for example, a stabilizer or the like, or may be positioned and fixed in a state of being applied to the surface of the diffusion plate 26 using, for example, a vibration damping sheet or the like.

[0081] (Eighth example) FIG. 14 shows an eighth example of the configuration of the vibration member 121.

[0082] In FIG. 14, the vibration member 121H has a shape in which four protruding portions 221H are formed at equal intervals on a hollow ellipsoid. The protruding portion 221H has a rod-like shape with a rounded tip.

[0083] The vibration member 121H is attached to the vibration portion 101 such that the tip of the protruding portion 221H formed on the ellipsoid is in contact with the surface of the diffusion plate 26. That is, in FIG. 14, the number of support points of the vibration member 121H with respect to the diffusion plate 26 is four.

[0084] The color of the vibration member 121H can be the same as or corresponding to the color of the diffusion plate 26, such as milky white. Also, the vibration member 121H may fix the tips of the four protrusions 221H completely to the surface of the diffusion plate 26 using, for example, a stabilizer or the like, or may be positioned and fixed in a state where it is applied to the surface of the diffusion plate 26 using, for example, a vibration damping sheet or the like.

[0085] (The ninth example) FIG. 15 shows a ninth example of the configuration of the vibration member 121.

[0086] In FIG. 15, the vibration member 121I has a shape in which one protrusion 221I is formed at the center on a disk. The protrusion 221I has a rod-like shape with a rounded tip.

[0087] The vibration member 121I is attached to the vibration unit 101 such that the tip of the protrusion 221I formed on the disk thereof is in contact with the surface of the diffusion plate 26. That is, in FIG. 15, the number of support points of the vibration member 121I with respect to the diffusion plate 26 is one point.

[0088] The color of the vibration member 121I can be the same as or corresponding to the color of the diffusion plate 26, such as milky white. Also, the vibration member 121I may fix the tip of the protrusion 221I completely to the surface of the diffusion plate 26 using, for example, a stabilizer or the like, or may be positioned and fixed in a state where it is applied to the surface of the diffusion plate 26 using, for example, a vibration damping sheet or the like.

[0089] As described above, by fixing the vibration member 121 having a predetermined shape and a predetermined color to the diffusion plate 26 by a predetermined fixing method, when the vibration unit 101 vibrates the vibration member 121, the vibration is transmitted from the vibration member 121 to the diffusion plate 26, and the diffusion plate 26 vibrates as a diaphragm, and sound can be output from the display surface 24A of the liquid crystal display cell 24.

[0090] In addition, when attaching the vibration member 121, it is necessary to consider the influence of its shadow and rattle noise. However, the vibration members 121A to 121I described above have a predetermined shape and a predetermined color, and are fixed to the diffusion plate 26 by a predetermined fixing method, so that measures against shadow and rattle noise are taken.

[0091] For example, in the vibration member 121, by making its color milky white or the like to be the same color as the diffusion plate 26, or making its shape such that it is difficult to form a shadow by the light from the backlight unit 42, measures against shadow can be taken.

[0092] Rattle noise is a kind of distortion generated by the speaker device, and is an unsteady distortion generated by contact or foreign matter, and may occur when the vibration member 121 is not sufficiently fixed to the diffusion plate 26. In the display device 1, by using a predetermined fixing method such as a stabilizer, an adhesive, or screw fastening, or a vibration damping sheet, the tip of the protrusion 221 of the vibration member 121 is fixed to the surface of the diffusion plate 26, so that measures against rattle noise can be taken.

[0093] For example, it has been confirmed by a detailed simulation by the inventor of the present technology that by using the vibration member 121F having the shape shown in FIG. 12 and having the same milky white color as the diffusion plate 26, its shadow can be sufficiently removed. Similarly, for example, it has been confirmed that by using the vibration member 121G having the shape shown in FIG. 13 and having the same milky white color as the diffusion plate 26, its shadow can be sufficiently removed.

[0094] Furthermore, for example, with respect to the vibration member 121H having the shape shown in FIG. 14 and the vibration member 121I having the shape shown in FIG. 15, although there is a possibility that some rattle noise may occur because it is difficult to secure an adhesive surface from the shapes of the protrusions 221H and 221I, it has been confirmed that their shadows can be sufficiently removed.

[0095] Note that the vibration members 121A to 121I are examples of the shape of the vibration member 121, and other shapes may be used as long as they are shapes with measures against shadow.

[0096] <2. Variation Example>

[0097] (Configuration of Speaker Device) In the above description, the configuration of the display device 1 was shown. However, the display device 1 also doubles as a speaker device that outputs sound, and a configuration including the vibration unit 101 and the vibration member 121 can be regarded as a speaker device. That is, a speaker device having the vibration unit 101, the vibration member 121, etc. can output sound by using the diffusion plate 26 as a constituent member constituting the liquid crystal panel unit 41 as a diaphragm.

[0098] (Configuration Using Piezoelectric Element) In the above description, a configuration in which the diffusion plate 26 is vibrated using the vibration unit 101 and the vibration member 121 was shown. However, sound may be output by vibrating the diffusion plate 26 using a piezoelectric element (piezo element). For example, the piezoelectric element can be fixed to the diffusion plate 26 using double-sided tape or the like.

[0099] (Installation Position of Vibration Member) In the above description, it was described that the vibration member 121 is attached so as to have a relative positional relationship with the LED 51. However, the vibration member 121 can be installed at an arbitrary position in consideration of the influence of its shadow and the billet sound. In this case, one or a plurality of the vibration unit 101 and the vibration member 121 can be provided in consideration of the influence of the shadow and the billet sound.

[0100] (Other Configurations) In the above description, a case where the vibration member 121 is attached by exemplifying the diffusion plate 26 as a constituent member constituting the liquid crystal panel unit 41 was shown. However, the constituent member to which the vibration member 121 is attached is not limited to the diffusion plate 26 and may be other constituent members. Also, regarding the color of the vibration member 121, it is not limited to one color and may have a plurality of colors.

[0101] As described above, according to the present technology, in a non-self-luminous display device such as a liquid crystal display device, sound can be output from the display surface of a non-self-luminous display cell such as a liquid crystal display cell. Thereby, for example, it becomes possible to localize sound images on the display surface of the non-self-luminous display cell.

[0102] 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.

[0103] Also, the effects described in this specification are merely examples and are not limiting, and there may be other effects.

[0104] Note that the present technology can have the following configuration.

[0105] (1) A display panel unit including a non-self-luminous display cell, A light source unit that irradiates light from the back of the display panel unit, A vibration unit that vibrates the constituent members constituting the display panel unit to output sound from the display surface of the display cell and The vibration unit vibrates the constituent members fixed to the vibration member by a predetermined fixing method by vibrating a vibration member having a predetermined shape and a predetermined color. Display device. (2) The constituent member includes a diffusion plate that diffuses light from the light source unit. The display device according to (1) above. (3) The vibration member has a protrusion that contacts the surface of the constituent member. The display device according to (1) or (2) above. (4) One or more of the protrusions are provided and serve as contact points with the surface of the constituent member. The display device according to (3) above. (5) The vibration member has the same or corresponding color as the constituent member. The display device according to any one of (1) to (4) above. (6) The vibration member is made of milky white. The display device according to (5) above. (7) The vibration member is fixed to the component member or is in a state of being applied to the component member. The display device according to any one of (1) to (6) above. (8) The vibration member is fixed to the component member by a stabilizer, an adhesive, or screw fastening. The display device according to (7) above. (9) The vibration member is positioned and fixed in a state of being applied to the component member by a vibration damping sheet. The display device according to (7) above. (10) The display cell includes a liquid crystal display cell. The light source unit includes a direct-lit backlight. The display device according to any one of (1) to (9) above. (11) A vibration unit is provided that vibrates a component member constituting a display panel unit including a non-self-luminous display cell to output sound from the display surface of the display cell. The vibration unit vibrates the component member fixed to the vibration member by a predetermined fixing method by vibrating a vibration member having a predetermined shape and a predetermined color. Speaker device. (12) The component member includes a diffusion plate that diffuses light from a light source unit that irradiates light from the back to the display panel unit. The speaker device according to (11) above. (13) The vibration member has a protrusion that contacts the surface of the component member. The speaker device according to (11) or (12) above. (14) One or more of the protrusions are provided and serve as contact points with the surface of the component member. The speaker device according to (13) above. (15) The vibration member has the same or corresponding color as the component member. The speaker device according to any one of (1) to (14). (16) The vibration member is made of milky white. The speaker device according to (15) above. (17) The vibration member is fixed to the component member or is in a state of being applied to the component member. The speaker device according to any one of (11) to (16). (18) The vibration member is fixed to the component member by a stabilizer, an adhesive, or screw fastening. The speaker device according to (17) above. (19) The vibration member is positioned and fixed in a state of being applied to the component member by a vibration damping sheet. The speaker device according to (17) above. (20) The display cell includes a liquid crystal display cell. The light source unit includes a direct-lit backlight. The speaker device according to any one of (11) to (19).

Explanation of Signs

[0106] 1 Display device, 11 Housing, 21 Bezel, 22 Back chassis, 23 Rear cover, 24 Liquid crystal display cell, 24A Display surface, 25 Optical sheet, 26 Diffusion plate, 27 Reflection sheet, 28 Circuit board, 29 Light source cover, 41 Liquid crystal panel unit, 42 Backlight unit, 51 LED, 121, 121A to 121I Vibration members, 131 Voice coil, 132 Yoke, 133 Magnet, 134 Plate, 135 Damper, 221, 221A to 221I Protrusions

Claims

1. A liquid crystal panel unit including a liquid crystal display cell, A direct - type backlight that irradiates light from the back to the liquid crystal panel unit, A vibration - generating unit that vibrates a diffusion plate for diffusing light from the backlight to output sound from the display surface of the liquid crystal display cell Comprising: The vibration - generating unit: Is disposed on the back side of the backlight, By vibrating a vibration - generating member disposed between the diffusion plate and the backlight, the diffusion plate fixed to the vibration - generating member by a predetermined fixing method is vibrated, The vibration - generating member is a hollow - shaped member made of the same milky white as the diffusion plate and has a plurality of protrusions whose surfaces and tips are fixed to the diffusion plate A display device.

2. The tips of the plurality of protrusions of the vibration - generating member are fixed to the surface of the diffusion plate by a stabilizer, an adhesive, or screw fastening The display device according to Claim 1.

3. A speaker device comprising a vibration - generating unit that vibrates a diffusion plate for diffusing light from a direct - type backlight that irradiates light from the back to a liquid crystal panel unit including a liquid crystal display cell to output sound from the display surface of the liquid crystal display cell, The vibration - generating unit: Is disposed on the back side of the backlight, By vibrating a vibration - generating member disposed between the diffusion plate and the backlight, the diffusion plate fixed to the vibration - generating member by a predetermined fixing method is vibrated, The vibration - generating member is a hollow - shaped member made of the same milky white as the diffusion plate and has a plurality of protrusions whose surfaces and tips are fixed to the diffusion plate A speaker device.

4. The tips of the plurality of protrusions of the vibration - generating member are fixed to the surface of the diffusion plate by a stabilizer, an adhesive, or screw fastening The speaker device according to Claim 3.

Images