Display device

Abstract

To reduce display unevenness of a liquid crystal panel of a display device.SOLUTION: The display device includes a liquid crystal panel, a bezel disposed on a front surface of the liquid crystal panel and having an opening at a center, an optical sheet located on a back surface of the liquid crystal panel, a light source configured to emit light from back surface sides of the liquid crystal panel and the optical sheet, a case located on a back surface of the light source, a panel holder sandwiched between the bezel and the case around the liquid crystal panel, a front-surface elastic body disposed around the front surface of the liquid crystal panel, a back-surface elastic body disposed around the back surface of the liquid crystal panel, and a sheet member disposed between the optical sheet and the liquid crystal panel in a periphery outside a display region of the optical sheet. The front-surface elastic body is fixed to the bezel, the back-surface elastic body is fixed to the sheet member, the front-surface elastic body and the back-surface elastic body are in contact with a front surface and a back surface of the liquid crystal panel, the back-surface elastic body is provided on an end surface of the sheet member, and the sheet member and the back-surface elastic body are disposed on at least one side of the display device.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a holding structure for a liquid crystal panel of a display device. [Background technology]

[0002] In recent years, the use of high-definition display panels has been increasing in display devices. When the display panel is a liquid crystal panel, the transmittance decreases as the resolution increases, making it necessary to improve the brightness of the backlight. For example, LEDs (Light Emitting Diodes) are used as the light source for this backlight. In addition, a technology called local dimming is also used, which adjusts the brightness of the LED according to the bright and dark areas displayed on the screen, thereby achieving high contrast.

[0003] FIG. 16 is a cross-sectional view showing a backlight unit of a conventional display device.

[0004] The backlight unit is composed of a case 8, a reflective sheet 10, and a light source substrate 5. LEDs (light sources 9) are mounted on the light source substrate 5, and the reflective sheet 10 is disposed on the light source substrate. A liquid crystal panel 2, multiple optical sheets 11, and a bezel 3 are disposed in front of the backlight unit. The liquid crystal panel 2 is divided into a display area 1A and a surrounding frame area 1B. Images are displayed by selectively transmitting backlight light irradiated from behind onto the display area 1A. The distance from the light source 9 to the liquid crystal panel 2 is denoted as 1C. A frame-shaped panel holder 30 is disposed between the liquid crystal panel 2 and the backlight, and a bezel 3 is disposed around the front of the liquid crystal panel. The liquid crystal panel 2 is sandwiched and held between the panel holder 30 and the bezel 3. A rear elastic body 40 and a front elastic body 50, such as cushions or silicone rubber, are often disposed and held at the contact points between the panel holder 30 and the liquid crystal panel 2 and between the bezel 3 and the liquid crystal panel 2. This elastic body has the role of mitigating stress on the liquid crystal panel and preventing dust from entering between the liquid crystal panel and the backlight.

[0005] On the other hand, display devices can achieve high contrast by, for example, using local dimming technology to increase the number of backlight LEDs and narrow the spacing between them. However, in display areas with large differences in brightness, light can easily enter areas that should be displayed dark, causing a halo effect, in which the outlines of bright areas become blurred. One way to address this issue is to narrow the spacing between the LEDs and the optical sheet, as well as the LCD panel, thereby reducing the device's thickness. Patent Document 1 discloses a structure that achieves both a thin design and protective function by fixing the LCD panel to a transparent protective plate, fixing a frame around the transparent protective plate, and fixing the backlight with a step-reducing member similar to a panel holder. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent Publication No. 2022-74544 Summary of the Invention [Problem to be solved by the invention]

[0007] However, if the liquid crystal panel is fixed as in Patent Document 1, residual stress may remain in the liquid crystal panel, which may cause display unevenness of the liquid crystal panel. On the other hand, if a conventional structure is adopted, by providing an elastic body that holds the liquid crystal panel, it is possible to reduce the stress generated in the liquid crystal panel and reduce display unevenness of the liquid crystal panel. However, the panel holder portion for arranging the elastic body requires thickness, which increases the gap between the LED and the liquid crystal panel, making it difficult to reduce the halo phenomenon.

[0008] Therefore, an object of the present invention is to realize a configuration that can reduce display unevenness on a liquid crystal panel. [Means for solving the problem]

[0009] The display device has a liquid crystal panel, a bezel arranged in front of the liquid crystal panel and having an opening in the center, an optical sheet located behind the liquid crystal panel, a light source that irradiates light from the rear side of the liquid crystal panel and the optical sheet, a case located behind the light source, a panel holder sandwiched between the bezel and the case around the liquid crystal panel, a front elastic body arranged around the front side of the liquid crystal panel, a rear elastic body arranged around the rear side of the liquid crystal panel, and a sheet member arranged between the liquid crystal panel and the optical sheet around the periphery outside the display area of ​​the optical sheet, wherein the front elastic body is fixed to the bezel, the rear elastic body is fixed to the sheet member, the front elastic body and the rear elastic body contact the front and rear sides of the liquid crystal panel, the rear elastic body is provided on an edge face of the sheet member, and the sheet member and the rear elastic body are arranged on at least one side of the display device. [Effects of the Invention]

[0010] According to the present invention, it is possible to reduce display unevenness on a liquid crystal panel. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is an exploded perspective view of a display device according to a first embodiment. [Figure 2] 1 is a front view of a display device according to a first embodiment. [Figure 3] 2 is a cross-sectional view of the display device according to the first embodiment taken along the line AA. FIG. [Figure 4] 1 is a front view showing the arrangement of a rear elastic body and a sheet member of the display device according to Embodiment 1. FIG. [Figure 5] 10 is a cross-sectional view showing a first modified example of the display device according to the first embodiment. FIG. [Figure 6] 10 is a cross-sectional view showing a second modification of the display device according to the first embodiment. FIG. [Figure 7] 10 is a cross-sectional view showing a third modified example of the display device according to the first embodiment. FIG. [Figure 8] 10 is a cross-sectional view of the display device according to the second embodiment taken along the line AA. FIG. [Figure 9] FIG. 10 is a cross-sectional view showing a modified example of the display device according to the second embodiment. [Figure 10] FIG. 10 is a cross-sectional view of the display device according to the third embodiment taken along the line AA. [Figure 11] FIG. 10 is a front view showing the arrangement of a panel holder and spacers of a display device according to a third embodiment. [Figure 12] FIG. 10 is a cross-sectional view showing a first modified example of the display device according to the third embodiment. [Figure 13] 10 is a cross-sectional view showing a second modification of the display device according to the third embodiment. FIG. [Figure 14] FIG. 10 is a cross-sectional view of the display device according to the fourth embodiment taken along the line AA. [Figure 15] FIG. 10 is a cross-sectional view showing a modified example of the display device according to the fourth embodiment. [Figure 16] FIG. 10 is a cross-sectional view of a display device according to a conventional example. DETAILED DESCRIPTION OF THE INVENTION

[0012] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0013] [Embodiment 1] Hereinafter, the first embodiment will be described with reference to FIGS.

[0014] Fig. 1 is an exploded perspective view of the display device according to embodiment 1. Fig. 2 is a front view of the display device according to embodiment 1. Fig. 3 is a cross-sectional view of the display device according to embodiment 1, taken along line AA in Fig. 2. Fig. 4 is a front view showing the arrangement of the rear elastic body and the sheet member of the display device according to embodiment 1.

[0015] The display device 1 is configured by a display module 20, which is a unit for displaying images, and on the rear side thereof, an electric circuit board for driving, internal structural components, a rear cover which is a rear exterior (none of which are shown).

[0016] The display module 20 is composed of a bezel 3, a liquid crystal panel 2, a panel holder 130, a plurality of optical sheets 11, and a backlight 4, in that order from the front side.

[0017] The backlight 4 includes a light source substrate 5 mounted with multiple light sources 9 inside a case 8 located on the rear side. While LEDs (Light Emitting Diodes) are typically used as the light sources 9, this is not a limitation. The reflective sheet 10 is designed to efficiently reflect light from the light sources 9 onto multiple optical sheets 11 and is made of a highly reflective material or has a surface treatment. Considering strength and heat dissipation from the light sources 5, the case 8 is preferably made of a metal material formed by stamping or machining. Furthermore, using a thermally conductive sheet 12 between the case 8 and the light source substrate 5 as a heat transfer member for heat transfer further improves heat dissipation and uniformity. The thermally conductive sheet 12 is preferably made of an elastic material such as rubber. In this case, stress on the substrate caused by the thermally conductive sheet 12 is reduced, and using a material with higher thermal conductivity also improves heat dissipation. The bezel 3 is often made of metal and formed by stamping or machining, but it may also be made of molded resin. The optical sheets 11 are sheet- or plate-shaped members that optically adjust the light from the backlight 4 and irradiate it onto the liquid crystal panel 2, and are composed of a diffusion plate that makes the amount of light uniform in the surface direction, a prism sheet that controls the outgoing direction of the light, etc. The optical sheets 11 are made of materials such as polycarbonate and polyethylene terephthalate.

[0018] The display device has a display area 1A of the liquid crystal panel 2 and a frame area 1B, which is the area from outside the display area of ​​the liquid crystal panel to the outer edge of the bezel 3. A panel holder 130 is provided in the frame area 1B as a frame-shaped member and is fixed to the case 8. If the panel holder sidewall area is 1D and the case sidewall area is 1E, for example, the case 8 forms a curved surface in the case sidewall area 1E. The panel holder 130 and the case 8 are fixed to each other in the panel holder sidewall area 1D with screws, rivets, or the like. The panel holder 130 can be formed by injection molding using a resin material such as polycarbonate. The panel holder 130 also has a structure that determines the position of each edge face of the liquid crystal panel 2. Furthermore, since the panel holder 130 receives strong light from the optical sheet 11 and stray light emitted or reflected from the edges of the liquid crystal panel 2, it is formed of a material with low reflectivity, such as black, to prevent unnecessary reflection of this light toward the liquid crystal panel 2. The panel holder 130 may have a shape that holds the optical sheet 11 at its edges.

[0019] The bezel 3 has a front elastic body 150 attached to the inner periphery of each of its four sides. Furthermore, a sheet member 160 is attached to the four sides of the frame region 1B of the optical sheet 11 closest to the liquid crystal panel 2. Furthermore, a rear elastic body 140 is attached onto the sheet member 160. The liquid crystal panel 2 is sandwiched and held between the front elastic body 150 and the rear elastic body 140. The display region 1A is an area where images are displayed by selectively transmitting light from the backlight 4 located on the rear side to the front side. The bezel 3 has an opening that does not block light from the image display region. Furthermore, the front elastic body 150, rear elastic body 140, and sheet member 160 are also positioned so as not to block light. In particular, when a user views the edge of the display region 1A of the display device from the center, it is desirable that the front elastic body 150, rear elastic body 140, and sheet member 160 are not on an extension line of a predetermined angle θ. This reduces brightness reduction at the edge of the display region 1A. In addition, θ is generally about 30 to 75°.

[0020] Here, the following description will be made with reference to FIG. 4. The rear elastic body 140 and the sheet member 160 are arranged in the short-side direction of the optical sheet 11, and the rear elastic body 141 and the sheet member 161 are arranged in the long-side direction of the optical sheet 11. The sheet members 160 and 161 are aligned and attached from the edge faces of the optical sheet 11. The rear elastic bodies 140 and 141 are attached based on the central edge faces of the optical sheet of the sheet members 160 and 161. This allows the positions of the rear elastic body and the sheet members to be determined. It is effective if the rear elastic bodies 140 and 141, the sheet members 160 and 161, and the front elastic body 150 are attached to at least one of the four sides of the liquid crystal panel surface of the display device 1, but it is preferable that they are attached to all four sides. Note that these components may not be positioned at each end of the four sides of the liquid crystal panel surface, but may be partially attached. Double-sided tape is useful for attaching the front elastic body 150, the rear elastic body 140, and the sheet member 160, but adhesives or other fixing methods may also be used. The rear elastic body 140 and the front elastic body 150 are preferably made of a material such as cushion or silicone rubber, and are approximately 0.5 to 5.0 mm thick and 1 to 10 mm wide. These elastic bodies relieve stress on the liquid crystal panel 2 and prevent dust from entering between the liquid crystal panel and the backlight. The sheet member 160 is approximately 0.1 to 2.0 mm thick; a thinner sheet member 160 reduces the distance 2C from the light source 9 to the liquid crystal panel 2. This reduces the distance between the liquid crystal panel 2 and the optical sheet 11 compared to conventional configurations in which the rear elastic body is placed on the panel holder. Furthermore, the sheet member 160 is preferably made of a resin material such as polycarbonate or polyethylene terephthalate (PET). Using a black material for the sheet member 160 can prevent light leakage from unnecessary areas, similar to the panel holder 130. Only the front or back surface of the sheet member may be black, or the black color may be formed by painting or silkscreen printing.

[0021] The configuration of the display device in this embodiment can be modified. Modifications 1 to 3 of the configuration of the display device will be described in order. Figure 5 is a cross-sectional view showing Modification 1 of the display device according to Embodiment 1.

[0022] As shown in Figure 5, the sheet member 160a may have a convex shape to make it easier to position the rear elastic body 140 and to prevent it from slipping out of place. This may be achieved by bending the sheet material or by extruding it. While even a slight convex shape, such as 0.1 mm or more, is effective, it is desirable for the convexity to be at least half the thickness of the rear elastic body. This allows the rear elastic body 140 to be positioned between the end face of the sheet member 160a and the convex shape, thereby defining its position.

[0023] Next, a description will be given of Modification 2. Fig. 6 is a cross-sectional view showing Modification 2 of the display device according to Embodiment 1.

[0024] 6, the sheet member 160b is folded back from the edge of the optical sheet 11. As described above, the rear elastic body 140 is attached from the center of the optical sheet to the edge of the sheet member 160b, and is attached up to the edge of the folded back shape. This allows the rear elastic body 140 to be positioned between the edge of the sheet member 160b and the folded back shape, thereby defining its position.

[0025] Next, a description will be given of Modification 3. Fig. 7 is a cross-sectional view showing Modification 3 of the display device according to Embodiment 1.

[0026] 7, the sheet member 160c is configured to cover the multiple optical sheets 11. It extends from the end faces of the multiple optical sheets 11 to the surface on which the optical sheets 11 are stacked, that is, to the surface of the reflective sheet 10 and the case 8. This has the effect of making it difficult for the high-value sheets to become misaligned by sandwiching the sheet member 160c, and has the effect of improving the light-blocking performance of the sheet member 160c.

[0027] As described above, the configuration of this embodiment makes it possible to reduce the gap 2C between the liquid crystal panel and the optical sheet, make the backlight thinner, reduce stress on the liquid crystal panel, and reduce display unevenness on the liquid crystal panel.

[0028] [Embodiment 2] Next, a second embodiment will be described with reference to the drawings. In this embodiment, the configuration of the parts that are different from the first embodiment will be described in detail, and a configuration in which no sheet member is provided will be proposed.

[0029] FIG. 8 is a cross-sectional view of the display device according to the second embodiment taken along the line AA.

[0030] As shown in FIG. 8, a black portion 260 is provided on the surface of one of the optical sheets 11 that is closest to the liquid crystal panel 2. The area where the black portion 260 is provided is the area where the rear elastic body 140 is desired to be placed, which corresponds to the area of ​​the frame region 1B and the positions of the four sides around the optical sheet. The black portion 260 is formed, for example, by painting or silkscreen printing. The rear elastic body 140 is attached starting from the center of the optical sheet where the black portion 260 is provided. The configuration of the rear elastic body 140 and other components are the same as in embodiment 1. In this way, the same effect can be achieved without using a sheet member.

[0031] 9 is a cross-sectional view showing a modification of the display device according to the second embodiment.

[0032] As shown in Figure 9, instead of providing black sections on the optical sheet, a transparent plate 261 is provided on the optical sheet 11, and black sections 262 are provided on the four sides of the frame area 1B. Although this increases the number of components, this configuration is effective when it is difficult to print or paint on the optical sheet. The thickness of the transparent plate 261 is preferably about 0.5 to 2.0 mm.

[0033] As described above, with the configuration of this embodiment, even without using a sheet member, it is possible to reduce the gap between the liquid crystal panel and the optical sheet, make the backlight thinner, reduce stress on the liquid crystal panel, and reduce display unevenness on the liquid crystal panel, just like in embodiment 1.

[0034] [Embodiment 3] Next, a third embodiment will be described with reference to the drawings. In this embodiment, the configuration of parts that are different from those of the first and second embodiments will be described in detail.

[0035] Fig. 10 is a cross-sectional view taken along the line AA of the display device according to embodiment 3. Fig. 11 is a front view showing the arrangement of the panel holder and spacers of the display device according to embodiment 3.

[0036] As shown in FIG. 10 , the panel holder 230 has a simple rectangular cross-section. The panel holder 230 can be manufactured, for example, by cutting a rectangular cross-sectional plate or by extrusion molding resin or metal materials, eliminating the need for costly manufacturing methods such as resin molding dies. The panel holders 230 are arranged on each of the four sides. The panel holders 230 are fixed to the case 8 and function to determine the front-to-rear position of the bezel 3 and the planar position of the optical sheet 11. Furthermore, a spacer 270 is fixed to the panel holder 230, and the opposite side abuts against the edge of the liquid crystal panel 2 or provides a certain gap between them, thereby positioning the liquid crystal panel 2 in the planar direction. The spacer 270 may be made of the same material as the panel holder 230, or it may be made of a cushion or elastic material. The use of an elastic material is more effective in absorbing impact on the liquid crystal panel 2 even when an impact is applied to the display device, and is therefore preferable when the panel holder is made of a metal material. The panel holder 230 and the spacer 270 may be fixed to each other using adhesive, double-sided tape, etc. The other structures of the sheet member 160 and the rear elastic body 140 are the same as those in the first embodiment.

[0037] The planar configuration will be described in detail with reference to Figure 11. Panel holders 230 and 231 are arranged in the short direction, and panel holders 232 and 233 are arranged in the long direction, on all four sides of the display device. Although the shapes are uniformly rectangular, partial cutouts may be provided to avoid flexible wiring. This is because a drain substrate (not shown) for driving the liquid crystal panel 2 and flexible wiring (not shown) for connection are mounted and arranged therein. Spacers 270, 271, 272, and 273 are provided on each side. By providing spacers in two or more locations on each side, the position of the liquid crystal panel 2 can be stably determined. Furthermore, when one side of a spacer is in contact with the liquid crystal panel 2, it is recommended to provide a clearance on the other side to allow for thermal expansion and ease of assembly. For example, when spacers 270 and 273 are in contact with the liquid crystal panel 2, spacers 271 and 272 provide a clearance from the liquid crystal panel 2.

[0038] Next, Modifications 1 and 2 of this embodiment will be described in order. Fig. 12 is a cross-sectional view showing Modification 1 of the display device according to Embodiment 3.

[0039] As shown in Figure 12, a recess 235 having a concave shape is provided in the panel holder 230a. The recess only needs to be large enough to be visible. The spacer 270 is attached using this recess 235 as a reference. The recess 235 is easy to provide when the panel holder 230a has an extrusion-molded shape, but it may also be formed in a later process such as by marking or laser processing. This configuration makes it possible to prevent the spacer 270 from shifting position.

[0040] FIG. 13 is a cross-sectional view showing a second modification of the display device according to the third embodiment.

[0041] 13, this configuration can also be realized by arranging the rear elastic body 245 from the edge face of the optical sheet 11 without using a sheet member. This is because the panel holder 230 has a rectangular shape, so there is no part that cushions the rear elastic body 245. Also, as described above, the spacer 270 is attached to the panel holder 230, and the opposite surface abuts against the liquid crystal panel 2.

[0042] As described above, the configuration of this embodiment makes it possible to reduce the gap between the liquid crystal panel and the optical sheet, make the backlight thinner, simplify the shape of the panel holder, and position the liquid crystal panel in the planar direction.

[0043] [Embodiment 4] Next, a fourth embodiment will be described with reference to the drawings. In this embodiment, the configuration of the parts that are different from those of the first to third embodiments will be described in detail.

[0044] FIG. 14 is a cross-sectional view of the display device according to the fourth embodiment taken along the line AA.

[0045] As shown in FIG. 14 , unlike the conventional configuration and the case of Embodiment 1, this configuration does not include a backlight sidewall, and the case 308 is formed in a flat plate shape. Considering the strength and heat dissipation of the light source 5, the case 308 is preferably made of a metal material such as aluminum alloy or iron, formed by pressing or machining. The backlight sidewall extends from the panel holder 330. As in Embodiment 3, the panel holder 330 is formed by extrusion molding using resin or a metal material, which allows for easy formation of a stepped shape like the backlight sidewall. Furthermore, since this portion contacts the outer periphery of the display device, the panel holder 330 is preferably formed from a rigid extruded aluminum alloy material. The panel holder 330 secures the bezel 303 and the case 308. The bezel 303 and the case 308 are secured with screws 390 and 391. As shown in FIG. 14 , screw fastening is common, but rivets or a claw-shaped fitting fastener may also be used. As described above, in the first embodiment, it was necessary to secure a screw fixing area in the panel holder sidewall area 1D, but in the present embodiment, there is no need to secure a screw fixing area in the panel holder sidewall area 3D, and therefore it can be made smaller. On the other hand, since it is easy to secure a fixing surface between the flat case 303 and the panel holder 330, fixing can be performed with screws 391 in the case sidewall area 3E. This allows the frame area 3B to be made smaller. Note that the spacer 370 is attached to the panel holder 330, as in the third embodiment. The configuration of other components, such as the sheet member 160 and the back elastic body 140, is the same as in the above-described embodiments.

[0046] Next, a modification of this embodiment will be described below: Fig. 15 is a cross-sectional view showing a modification of the display device according to the fourth embodiment.

[0047] 15, heat conduction sheet 312 is extended to the fixing surfaces of case 308 and panel holder 330a and fastened together with screws 391. In this way, heat generated by light source 9 is transferred not only to case 308 but also to panel holder 30a, achieving uniform heat distribution in the backlight. Heat conduction sheet 312 may be made of a material such as heat dissipation rubber, but greater effectiveness is achieved when a material that conducts heat in a planar direction, such as a graphite sheet, is used.

[0048] As described above, the configuration of this embodiment makes it possible to reduce the gap between the liquid crystal panel and the optical sheet, make the backlight thinner, and have the panel holder also function as part of the case, thereby making it possible to narrow the frame of the display device.

[0049] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications and changes are possible within the scope of the gist of the present invention. [Other embodiments] The disclosure of this embodiment includes the following configuration. (Configuration 1) An LCD panel, a bezel disposed in front of the liquid crystal panel and having an opening at its center; an optical sheet positioned on the rear surface of the liquid crystal panel; a light source that irradiates light from the rear side of the liquid crystal panel and the optical sheet; a case located on the rear surface of the light source; a panel holder sandwiched between the bezel and the case around the liquid crystal panel; a front elastic body disposed around the front surface of the liquid crystal panel; a rear elastic body disposed around the rear surface of the liquid crystal panel; a sheet member disposed between the liquid crystal panel and the side of the optical sheet; A display device having: the front elastic body is fixed to the bezel, and the rear elastic body is fixed to the sheet member, the front elastic body and the rear elastic body contact the front and rear surfaces of the liquid crystal panel, the rear elastic body is provided on an end surface of the sheet member, The sheet member and the rear elastic body are disposed on at least one side of the display device. A display device characterized by: (Configuration 2) The display device according to configuration 1, wherein the sheet member and the rear elastic body are arranged on four sides. (Configuration 3) 3. The display device according to claim 1, wherein the sheet member has a front surface or a back surface that is black. (Configuration 4) the sheet member has a folded structure to form a convex shape, 4. The display device according to any one of configurations 1 to 3, wherein the rear elastic body abuts against a convex shape. (Configuration 5) the sheet member has a shape folded back from an end surface of the optical sheet, 4. The display device according to any one of configurations 1 to 3, wherein the rear elastic body abuts against the folded end surface of the sheet member. (Configuration 6) An LCD panel, a bezel disposed in front of the liquid crystal panel and having an opening at its center; an optical sheet positioned on the rear surface of the liquid crystal panel; a light source that irradiates light from the rear side of the liquid crystal panel and the optical sheet; a case located on the rear surface of the light source; a panel holder sandwiched between the bezel and the case around the liquid crystal panel; a front elastic body disposed around the front surface of the liquid crystal panel; a rear elastic body disposed around the rear surface of the liquid crystal panel; A display device having: the front elastic body is fixed to the bezel, and the rear elastic body is fixed to the optical sheet; the front elastic body and the rear elastic body contact the front and rear surfaces of the liquid crystal panel, the optical sheet has a black portion outside the display area, the rear elastic body is provided at an end of the black portion of the optical sheet, The black portion of the optical sheet and the rear elastic body are disposed on at least one side of the display device. A display device characterized by: (Configuration 7) An LCD panel, a bezel disposed in front of the liquid crystal panel and having an opening at its center; an optical sheet positioned on the rear surface of the liquid crystal panel; a light source that irradiates light from the rear side of the liquid crystal panel and the optical sheet; a case located on the rear surface of the light source; a panel holder sandwiched between the bezel and the case around the liquid crystal panel; a front elastic body disposed around the front surface of the liquid crystal panel; a rear elastic body disposed around the rear surface of the liquid crystal panel; a transparent plate having a black portion outside a display area in the optical sheet; A display device having: the front elastic body is fixed to the bezel, and the rear elastic body is fixed to the transparent plate; the front elastic body and the rear elastic body contact the front and rear surfaces of the liquid crystal panel, The rear elastic body is provided at an end of the black portion of the transparent plate, The black portion of the transparent plate and the rear elastic body are disposed on at least one side of the display device. A display device characterized by: (Configuration 8) An LCD panel, a bezel disposed in front of the liquid crystal panel and having an opening at its center; an optical sheet positioned on the rear surface of the liquid crystal panel; a light source that irradiates light from the rear side of the liquid crystal panel and the optical sheet; a case located on the rear surface of the light source; a panel holder sandwiched between the bezel and the case around the liquid crystal panel; a front elastic body disposed around the front surface of the liquid crystal panel; a rear elastic body disposed around the rear surface of the liquid crystal panel; A display device having: the front elastic body is fixed to the bezel, and the rear elastic body is fixed to the optical sheet; the front elastic body and the rear elastic body contact the front and rear surfaces of the liquid crystal panel, the rear elastic body is disposed from the end face of the optical sheet to the outside of the display area, The rear elastic body is disposed on at least one side of the display device. A display device characterized by: (Configuration 9) a spacer disposed between the panel holder and the liquid crystal panel; the spacer and the panel holder are arranged on at least one side; The spacer is fixed to the panel holder and abuts against the liquid crystal panel on a surface opposite to the surface to which the panel holder is fixed. 9. The display device according to any one of configurations 1 to 8. (Configuration 10) 10. The display device according to configuration 9, wherein the spacers and the panel holders are arranged on four sides. (Configuration 11) 11. The display device according to configuration 9 or 10, wherein the spacer and the panel holder are fixed to each other via an adhesive. (Configuration 12) 12. The display device according to any one of configurations 9 to 11, wherein the panel holder has a recessed portion in a position corresponding to a position where the spacer is fixed. (Configuration 13) 11. The display device according to configuration 10, wherein the panel holder is made of an extruded material and has notches on all four sides. (Configuration 14) 11. The display device according to configuration 10, wherein the panel holder is made of a rectangular plate member, and all four sides are notched. (Configuration 15) the panel holder forms a side wall; The case is formed in a flat plate shape, 12. The display device according to any one of configurations 1 to 11, wherein the display device is fixed to the case and the bezel. (Configuration 16) 16. The display device according to any one of configurations 1 to 15, wherein the panel holder is made of a resin or metal material. (Configuration 17) 16. The display device according to configuration 15, wherein the panel holder is fixed to the case from the rear surface of the display device, and to the bezel from the side wall of the display device. (Configuration 18) a heat transfer member is further provided between the case and the light source; 18. The display device according to configuration 17, wherein the heat transfer member is sandwiched and fixed between the panel holder and the case.

Claims

1. An LCD panel, a bezel disposed in front of the liquid crystal panel and having an opening at its center; an optical sheet positioned on the rear surface of the liquid crystal panel; a light source that irradiates light from the rear side of the liquid crystal panel and the optical sheet; a case located on the rear surface of the light source; a panel holder sandwiched between the bezel and the case around the liquid crystal panel; a front elastic body disposed around the front surface of the liquid crystal panel; a rear elastic body disposed around the rear surface of the liquid crystal panel; a sheet member disposed between the liquid crystal panel and the side of the optical sheet; A display device having: the front elastic body is fixed to the bezel, and the rear elastic body is fixed to the sheet member, the front elastic body and the rear elastic body contact the front and rear surfaces of the liquid crystal panel, the rear elastic body is provided on an end surface of the sheet member, The sheet member and the rear elastic body are disposed on at least one side of the display device. A display device characterized by:

2. The display device according to claim 1 , wherein the sheet member and the rear elastic body are arranged on four sides.

3. The display device according to claim 1 , wherein the sheet member has a front surface or a back surface that is black.

4. the sheet member has a folded structure to form a convex shape, 2. The display device according to claim 1, wherein the rear elastic body abuts against a convex shape.

5. the sheet member has a shape folded back from an end surface of the optical sheet, 2. The display device according to claim 1, wherein the rear elastic body abuts against the folded end surface of the sheet member.

6. An LCD panel, a bezel disposed in front of the liquid crystal panel and having an opening at its center; an optical sheet positioned on the rear surface of the liquid crystal panel; a light source that irradiates light from the rear side of the liquid crystal panel and the optical sheet; a case located on the rear surface of the light source; a panel holder sandwiched between the bezel and the case around the liquid crystal panel; a front elastic body disposed around the front surface of the liquid crystal panel; a rear elastic body disposed around the rear surface of the liquid crystal panel; A display device having: the front elastic body is fixed to the bezel, and the rear elastic body is fixed to the optical sheet; the front elastic body and the rear elastic body contact the front and rear surfaces of the liquid crystal panel, the optical sheet has a black portion outside the display area, the rear elastic body is provided at an end of the black portion of the optical sheet, The black portion of the optical sheet and the rear elastic body are disposed on at least one side of the display device. A display device characterized by:

7. An LCD panel, a bezel disposed in front of the liquid crystal panel and having an opening at its center; an optical sheet positioned on the rear surface of the liquid crystal panel; a light source that irradiates light from the rear side of the liquid crystal panel and the optical sheet; a case located on the rear surface of the light source; a panel holder sandwiched between the bezel and the case around the liquid crystal panel; a front elastic body disposed around the front surface of the liquid crystal panel; a rear elastic body disposed around the rear surface of the liquid crystal panel; a transparent plate having a black portion outside a display area in the optical sheet; A display device having: the front elastic body is fixed to the bezel, and the rear elastic body is fixed to the transparent plate; the front elastic body and the rear elastic body contact the front and rear surfaces of the liquid crystal panel, The rear elastic body is provided at an end of the black portion of the transparent plate, The black portion of the transparent plate and the rear elastic body are disposed on at least one side of the display device. A display device characterized by:

8. An LCD panel, a bezel disposed in front of the liquid crystal panel and having an opening at its center; an optical sheet positioned on the rear surface of the liquid crystal panel; a light source that irradiates light from the rear side of the liquid crystal panel and the optical sheet; a case located on the rear surface of the light source; a panel holder sandwiched between the bezel and the case around the liquid crystal panel; a front elastic body disposed around the front surface of the liquid crystal panel; a rear elastic body disposed around the rear surface of the liquid crystal panel; A display device having: the front elastic body is fixed to the bezel, and the rear elastic body is fixed to the optical sheet; the front elastic body and the rear elastic body contact the front and rear surfaces of the liquid crystal panel, the rear elastic body is disposed from the end face of the optical sheet to the outside of the display area, The rear elastic body is disposed on at least one side of the display device. A display device characterized by:

9. a spacer disposed between the panel holder and the liquid crystal panel; the spacer and the panel holder are arranged on at least one side; The spacer is fixed to the panel holder and abuts against the liquid crystal panel on a surface opposite to the surface to which the panel holder is fixed.

2. The display device according to claim 1.

10. The display device according to claim 9 , wherein the spacers and the panel holders are arranged on four sides.

11. 10. The display device according to claim 9, wherein the spacer and the panel holder are fixed to each other with an adhesive.

12. 10. The display device according to claim 9, wherein the panel holder has a recessed portion at a position corresponding to a position where the spacer is fixed.

13. 11. The display device according to claim 10, wherein the panel holder is made of an extruded material and has four sides each having a notched shape.

14. 11. The display device according to claim 10, wherein the panel holder is made of a rectangular plate member, and all four sides are notched.

15. the panel holder forms a side wall; The case is formed in a flat plate shape, The display device according to claim 1 , wherein the display device is fixed to the case and the bezel.

16. 2. The display device according to claim 1, wherein the panel holder is made of a resin or metal material.

17. 16. The display device according to claim 15, wherein the panel holder is fixed to the case from a rear surface of the display device and to the bezel from a side wall of the display device.

18. a heat transfer member is further provided between the case and the light source; 18. The display device according to claim 17, wherein the heat transfer member is fixed by being sandwiched between the panel holder and the case.

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