Display device and method for assembling display device

Abstract

To provide a display device that can effectively prevent illumination light emitted from a backlight unit from leaking outward from an edge of a cover plate, and a method for assembling the display device.SOLUTION: A flexible wiring board 21 extending downward from a cover plate 2 extends through a gap 18a between an inner surface 2a of the cover plate 2 and a holder 11 of a backlight unit and extends inward of a device. Also, a light-shielding elastic member 31 is fixed to an inward support member 32 serving as a shield plate. When the inward support member 32 is incorporated into and fixed to the backlight unit, a front end 31a of the elastic member 31 abuts against the inner surface 2a of the cover plate 2, whereby light L leaking from the gap 18a is blocked by the elastic member 31.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a display device that can effectively prevent illumination light emitted from a backlight unit from leaking outward from the edge of a cover plate, and a method for assembling the display device. [Background technology]

[0002] Patent Document 1 describes an invention relating to an in-vehicle device that prevents light leakage to the outside through a gap between a touch panel and a support. In this in-vehicle device, a protrusion is formed inside the support, and a light guide is fixed to the front surface of a second light-shielding part of the protrusion. A touch panel is installed in front of the light guide, and a light-transmitting cover is adhered to the front surface of the touch panel. An LED is installed inside the second light-shielding part, and the LED and light guide form a touch panel illumination structure. A light-shielding area is provided on the touch panel, and a light-transmitting area that displays an operation unit is formed in part of the light-shielding area. Light emitted from the LED travels through the light guide to illuminate the light area from within.

[0003] The in-vehicle device described in Patent Document 1 has a first light-shielding surface formed on a protrusion formed on a support body, and this first light-shielding surface faces the outlet, which is the end face of the light guide, making it less likely for light to leak from the outlet of the light guide to the surrounding area. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-185955 Summary of the Invention [Problem to be solved by the invention]

[0005] The in-vehicle device described in Patent Document 1 has a first light-shielding surface formed on a protrusion of a support body facing the outlet, which is the end face of the light guide, but it is impossible to completely eliminate the gap between the first light-shielding surface and the outlet, and it is difficult to completely prevent light from leaking from around the light guide.

[0006] The present invention is intended to solve the above-mentioned conventional problems, and aims to provide a display device that can effectively prevent illumination light emitted from a backlight unit from leaking outward from the edge of a cover plate.

[0007] Another object of the present invention is to provide a method for assembling a display device that can be structured to effectively prevent illumination light emitted from the backlight unit from leaking outward from the edge of the cover plate without complicating the assembly process. [Means for solving the problem]

[0008] The present invention provides a display device having a light-transmitting cover plate, a display cell disposed on the inner surface of the cover plate, and a backlight unit disposed inside the display cell, the backlight unit has a backlight component facing the display cell and a holder supporting the backlight component, and a flexible wiring board extending from the inner surface of the cover plate passes through a gap between the inner surface of the cover plate and the holder and extends toward the inside of the device; An elastic member for blocking light is provided on an inner support member provided inside the device, and the elastic member is pressed against the inner surface of the cover plate between the flexible wiring board extending inside the device and the edge of the cover plate.

[0009] The display device of the present invention is preferably provided with a corrective protrusion inside the device for pressing the elastic member in a direction away from the edge of the cover plate.

[0010] The present invention may be configured such that an opposing member is provided facing the flexible wiring board extending inward of the device, and the correcting protrusion is provided on the opposing member. For example, the opposing member is an exterior material of the device.

[0011] Alternatively, in the present invention, the correcting protrusion may be provided on the inner support member that supports the elastic member. For example, the inner support member may be a shield plate.

[0012] Alternatively, in the present invention, the corrective projection may be provided on the inner surface of the cover plate.

[0013] In the display device of the present invention, a recess is formed in the holder to form the gap between the holder and the inner surface of the cover plate, and the holder is joined to the inner surface of the cover plate at a location other than the recess, The elastic member may be formed to be larger than the width of the recess, and may be provided in an area facing the recess.

[0014] Next, the present invention provides a method for assembling a display device having a light-transmitting cover plate, a display cell disposed on the inner surface of the cover plate, and a backlight unit disposed inside the display cell, the method comprising the steps of: the backlight unit has a backlight component located inside the display cell and a holder supporting the backlight component, and an inner support member provided inside the device is provided with a light-blocking elastic member; (a) extending the flexible wiring board protruding from the inner surface of the cover plate into the interior of the device through a gap between the inner surface of the cover plate and the holder, and combining the cover plate with the backlight unit; (b) pressing the elastic member against the inner surface of the cover plate between the flexible wiring board extending inward from the device and an edge of the cover plate to assemble the inner support member; It is characterized by having:

[0015] The method for assembling a display device of the present invention includes the steps of: An opposing member having a corrective protrusion is provided, It is preferable to have a step, after the step (b), of combining the backlight unit with the opposing member and pressing the elastic member in a direction away from the end side of the cover plate by the corrective protrusion.

[0016] In the method for assembling a display device of the present invention, for example, the opposing member is an exterior material of the device.

[0017] Alternatively, in the method for assembling a display device of the present invention, a corrective protrusion is provided on the inner support member, When the elastic member is attached to the inner support member, the correcting projection may press the elastic member in a direction away from the end edge of the cover plate. For example, the inner support member is a shield plate. [Effects of the Invention]

[0018] In the display device of the present invention, a gap is formed between the holder of the backlight unit and the inner surface of the cover plate through which the flexible wiring board passes, potentially causing illumination light emitted from the backlight unit to pass through this gap and bypass the edge of the cover plate, potentially leaking to the outside. Therefore, a light-shielding elastic member is pressed against the inner surface of the cover plate between the flexible wiring board extending inside the device and the edge of the cover plate, thereby preventing light leakage to the outside. The light-shielding elastic member elastically deforms and is pressed against the inner surface of the cover plate, ensuring reliable shielding between the cover plate and the elastic member. Furthermore, because the light-shielding elastic member is deformable, it is possible to reliably press the elastic member against the inner surface of the cover plate to provide light blocking, even with component tolerances and assembly tolerances. Furthermore, by using a corrective protrusion to press the elastic member in a direction away from the edge of the cover plate, it becomes easier to prevent the elastic member from deforming into a wavy shape or partially bending, and it also prevents the elastic member from protruding from the edge of the cover plate.

[0019] In the method for assembling a display device of the present invention, simply by assembling the inner support member provided with the elastic member to the backlight unit, the elastic member is pressed against the inner surface of the cover plate, and the gap between the inner surface of the cover plate and the holder can be covered by the elastic member. Because the elastic member pressed against the inner surface of the cover plate deforms, the resistance force when assembling the inner support member does not increase, and the assembly work can be performed in a simple process. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is a partial perspective view of a part of a display device according to a first embodiment of the present invention, seen from the front; [Figure 2] FIG. 2 is a partial cross-sectional perspective view of the display device shown in FIG. 1 taken along line II-II; [Figure 3] 2 is a partially exploded perspective view showing an example of an assembly method of the display device shown in FIG. 1, taken along the same line II-II as FIG. 2; [Figure 4] FIG. 4 is a partial cross-sectional view of the display device shown in FIG. 2 taken along line IV-IV, showing a portion where the flexible wiring board passes through a gap between the inner surface of the cover plate and the holder; [Figure 5] FIG. 5 is a partial cross-sectional view corresponding to FIG. 4 showing a display device according to a second embodiment of the present invention; [Figure 6] 4A and 4B are partial cross-sectional views showing a display device according to a third embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0021] The display device 1 of the first embodiment of the present invention is for vehicle use, but the display device 1 may also be for home use, theater use, office use, etc. The X1-X2 direction of the display device 1 is the left-right direction. The Y1-Y2 direction is the front-rear direction, or outside-inside direction. The Y1 direction is the front and outside of the device, and the Y2 direction is the rear and inside of the device. The Z1-Z2 direction is the up-down direction, with the Z1 direction being upward and the Z2 direction being downward.

[0022] The in-vehicle display device 1 shown in FIG. 1 has a shape elongated in the left-right direction (X1-X2 direction), but only a portion of it is shown as an embodiment. The display device 1 has a light-transmitting cover plate 2. The cover plate 2 is a transparent glass plate. Alternatively, the cover plate 2 may be formed of a transparent resin material such as an acrylic resin. The cover plate 2 has an inner surface 2a and an outer surface 2b. As shown in FIG. 1, the outer surface 2b of the cover plate 2 faces outward from the device (Y1 direction). As shown in FIGS. 2 and 3, a display cell 3 is fixed to the inner surface 2a of the cover plate 2. The display cell 3 is a liquid crystal display cell. The liquid crystal display cell is composed of two glass substrates, each having a transparent electrode, a liquid crystal material and color filters sealed between the two glass substrates, a polarizer, and the like. The display cell 3 is bonded to the inner surface 2a of the cover plate 2 via an optical adhesive, and the cover plate 2 and the display cell 3 are integrated together. In addition, a touch sensor, which is a capacitance type sensor, is sandwiched and bonded between the inner surface 2a of the cover plate 2 and the display cell 3.

[0023] As shown in Figures 2 and 3, a backlight unit 10 is provided inside the device. The backlight unit 10 is fixed to the inner surface 2a of the cover plate 2, and the backlight unit 10 and the cover plate 2 are integrated. The backlight unit 10 has a holder 11. The holder 11 is injection molded from a synthetic resin material or die-cast molded from a light metal material. The holder 11 has an inner wall 11a parallel to the XZ plane, a lower frame 11b integrated with the lower part of the inner wall 11a, an upper frame (not shown) integrated with the upper part of the inner wall 11a, and side frames (not shown) integrated on both the left and right sides of the inner wall 11a.

[0024] The holder 11 is a housing having a holding recess 11c that is open to the front (Y1 direction), and a backlight component 15 is provided in front of the holding recess 11c. The backlight component 15 has a light guide plate 13, a light source (not shown) such as an LED that provides illumination light to the light guide plate 13, and a light diffusion member 14. The light guide plate 13 is bonded to a joint surface 11d of the lower frame 11b and to each of the joint surfaces of the upper frame and the side frame. The light diffusion member 14 is bonded to a joint surface 11e of the lower frame 11b and to each of the joint surfaces of the upper frame and the side frame. A reflective member 16 is provided on the front surface of the inner wall portion 11a of the holder 11.

[0025] The surface of the lower frame 11b of the holder 11 facing forward (in the Y1 direction) is a bonding surface 17, and the inner surface 2a of the cover plate 2 is adhered to the bonding surface 17. For example, double-sided adhesive tape is used for the adhesion. Similarly, bonding surfaces 17 are formed on the surfaces facing forward of the upper frame and the side frames, and the inner surfaces 2a of the cover plate 2 are adhered to the respective bonding surfaces 17. As a result, the cover plate 2 to which the display cell 3 is bonded and the backlight unit 10 are bonded together and integrated, and can be handled as a subassembly.

[0026] Figure 4 is a partial cross-sectional view taken along line IV-IV of the partial perspective view of Figure 2. As described above, the joint surface 17 of the lower frame 11b of the holder 11 is bonded to the inner surface 2a of the cover plate 2. In the portion shown in the cross-sectional view of Figure 4, a facing recess 18 is formed in front of the lower frame 11b, leaving a gap 18a between the inner surface 2a of the cover plate 2 and the lower frame 11b of the holder 11. Furthermore, a wiring recess 19 is formed on the surface of the lower frame 11b facing downward (in the Z2 direction), communicating with the facing recess 18 (gap 18a) and extending toward the inside of the device (in the Y2 direction). As shown in Figure 3, the facing recess 18 (gap 18a) and the wiring recess 19 are formed with a width dimension W1 in the left-right direction (X1-X2).

[0027] As shown in FIG. 4, a flexible wiring board 21 extending downward (in the Z2 direction) from the inner surface 2a of the cover plate 2 is provided inside the device. The flexible wiring board 21 is bonded to the display cell 3, and image generation signals for liquid crystal display are supplied from conductors patterned on the flexible wiring board 21 to transparent electrodes formed on the glass substrate of the display cell 3. The conductors of the flexible wiring board 21 may also be connected to electrodes of a touch sensor, and detection signals from the touch sensor may be extracted through the conductors of the flexible wiring board 21. That is, the flexible wiring board 21 is connected to at least one of the display cell 3 and the touch sensor. The flexible wiring board 21, which is drawn downward from the inner surface 2a of the cover plate 2, passes through the gap 18a between the inner surface 2a of the cover plate 2 and the lower frame 11b and the wiring recess 19, extends toward the inside of the device (in the Y2 direction), and is bonded to a printed wiring board 22 fixed to the surface facing rearward (in the Y2 direction) of the inner wall portion 11a of the holder 11. The conductors of the flexible wiring board 21 are electrically connected to the electrode portions formed as a pattern on the surface of the printed wiring board 22 .

[0028] 2 and 3, in the region excluding the facing recess 18 formed within the range of width W1, the front joint surface 17 of the lower frame 11b of the holder 11 and the inner surface 2a of the cover plate 2 are bonded with double-sided adhesive tape or the like, so that the illumination light emitted forward from the backlight unit 10 is blocked by the lower frame 11b and does not leak below the holder 11. However, as shown in Fig. 4, in the region of width W1 where the facing recess 18 is formed, a gap 18a is formed between the lower frame 11b and the inner surface 2a of the cover plate 2, so that in this region, some of the illumination light emitted from the backlight unit 10 may pass through the gap 18a and become leakage light L reaching below the holder 11.

[0029] Therefore, in the display device 1, as shown in FIGS. 2 to 4, a light-shielding elastic member 31 is provided in the space extending inward (Y2 direction) of the device below the holder 11, at a height of dimension H between the flexible wiring board 21 extending inward (Y2 direction) and the lower edge 2c of the cover plate 2, and the space below the gap 18a is covered by the elastic member 31. The elastic member 31 is an elastic sheet. The elastic sheet is made of an elastic material capable of bending and compressive deformation, such as a foam material such as polyethylene foam, styrene foam, or urethane foam. Alternatively, the elastic member may be a resin sheet such as a polyethylene sheet or polypropylene sheet that is capable of bending but not compressive deformation. Alternatively, the elastic member may be a block-shaped foam resin that can be expected to undergo only compressive elastic deformation in the front-to-rear direction (Y1-Y2 direction). In either case, the material is colored black or other color to prevent light from passing through.

[0030] The elastic member 31 is attached to the horizontal support portion 32a of the inner support member 32. The inner support member 32 is a shield plate. The shield plate is made of a metal plate and covers the display cell 3 and backlight unit 10 from inside the device, thereby performing a shielding function to prevent noise from being transmitted from the display cell 3 and backlight unit 10 to other electronic components in the device. The elastic member 31 is adhered and fixed to the horizontal support portion 32a, which is part of the inner support member 32, and a part of the elastic member 31 protrudes forward (in the Y1 direction) beyond the front end portion 32c of the horizontal support portion 32a. As shown in FIG. 4, a fixing protrusion 11f that protrudes toward the inside of the device (in the Y2 direction) is integrally formed on the holder 11 of the backlight unit 10. As shown in Figure 3, the inner support member 32 is assembled to the backlight unit 10 from rear to front (Y1 direction), and as shown in Figures 2 and 4, the vertical fixing portion 32b, which is part of the inner support member 32, is fixed to the fixing protrusion 11f by a fixing screw 33.

[0031] When the inner support member 32 is fixed to the holder 11 of the backlight unit 10, the relative positions of the cover plate 2, the backlight unit 10, and the inner support member 32 are fixed. As shown in Fig. 4, the dimension by which the elastic member 31 protrudes forward (in the Y1 direction) from the front end 32c of the inner support member 32 is set to be slightly longer than the spatial distance S from the front end 32c of the inner support member 32 to the inner surface 2a of the cover plate 2 when the relative positions are fixed. Therefore, when the front end 31a of the elastic member 31 is pressed against the inner surface 2a of the cover plate 2, it undergoes elastic deformation (flexural deformation), allowing the front end 31a of the elastic member 31 and the inner surface 2a of the cover plate 2 to come into close contact with each other without any gaps. 3, the width W2 of the elastic member 31 in the left-right direction (X1-X2 direction) is sufficiently larger than the width W1 in the left-right direction of the opposing recess 18 and the wiring recess 19 formed in the holder 11, so that the elastic member 31 can sufficiently cover from below the entire left-right area of ​​the gap 18a between the inner surface 2a of the cover plate 2 and the holder 11. This makes it possible to prevent leakage light L in the gap 18a from bypassing the underside of the lower edge 2c of the cover plate 2 and leaking toward the front of the device.

[0032] As shown in FIG. 1, a lower facing member 35 is provided at the bottom of the display device 1, and an upper facing member 36 is provided at the top. The lower facing member 35 and the upper facing member 36 are exterior materials, and are injection-molded from a synthetic resin material or die-cast from a light metal material. As shown in FIG. 3, the lower facing member 35 is assembled from the bottom upward (Z1 direction) and fixed to the holder 11 of the backlight unit 10 with fixing screws. As shown in FIG. 4, the lower facing member 35 fixed to the holder 11 faces from below the flexible wiring board 21, which extends toward the inside of the device (Y2 direction), the horizontal support portion 32a of the inner support member 32, and the elastic member 31. The upper facing member 36 is assembled from the top downward (Z2 direction) and fixed to the holder 11 of the backlight unit 10 with fixing screws.

[0033] 2 to 4, a corrective protrusion 37 that protrudes upward is formed integrally with the lower opposing member 35. As shown in FIG. 4, the corrective protrusion 37 is provided so as to face the space of distance S from the front end 32c of the inner support member 32 to the inner surface 2a of the cover plate 2. As shown in FIG. 3, the width W3 in the left-right direction of the corrective protrusion 37 is equal to or greater than the width W2 in the left-right direction of the elastic member 31. When the lower opposing member 35 is assembled facing upward and fixed to the holder 11 of the backlight unit 10, the corrective protrusion 37 abuts against the entire width of the lower surface of the elastic member 31 in the left-right direction in the space of distance S, and the front portion of the elastic member 31 is lifted upward.

[0034] As shown in FIG. 4 , when the elastic member 31 is lifted by the correcting protrusion 37, the elastic member 31 is deformed and corrected so that it faces upward. Even if the front end 31a of the elastic member 31, which is an elastic sheet, is deformed in a wavy shape in the left-right direction or partially folded downward when pressed against the inner surface 2a of the cover plate 2, the correcting protrusion 37 pushes up the elastic member 31 across the entire width W2, correcting the deformation. As a result, the front end 31a of the elastic member 31 can uniformly contact the inner surface 2a of the cover plate 2 without any gaps, effectively blocking leaked light L that passes through the gap 18a. Furthermore, if the front end 31a is bent downward when pressed against the inner surface 2a of the cover plate 2, there is a risk that the front end 31a will be exposed in the gap between the end edge 2c of the cover plate 2 and the lower opposing member 35. However, pushing up the front end 31a with the correcting protrusion 37 prevents such exposure.

[0035] Next, an example of a method for assembling the display device 1 will be described. After assembling the backlight unit 10 by fixing the backlight components 15 to the holder 11, the inner surface 2a of the cover plate 2 integrated with the display cell 3 is adhered to the joint surface 17 formed on the lower frame 11b of the holder 11 and the joint surfaces 17 of the upper frame and side frame. At this time, the flexible wiring board 21 extending from the inner surface 2a of the cover plate 2 is passed through the opposing recess 18 formed in the holder 11 and into the wiring recess 19, and the flexible wiring board 21 is stretched toward the inside of the device (in the Y2 direction) and bonded to the printed wiring board 22 fixed to the holder 11. This forms a subassembly in which the cover plate 2, display cell 3, and backlight unit 10 are combined.

[0036] 3, inner support member 32, which is a shield plate to which elastic member 31 is attached, is attached to holder 11 of backlight unit 10 from behind, and fixing protrusion 11f extending from holder 11 of backlight unit 10 is fixed to vertical fixing portion 32b of inner support member 32 with fixing screws 33, thereby fixing backlight unit 10 and inner support member 32 to each other. At this time, front end 31a of elastic member 31 fixed to horizontal support portion 32a of inner support member 32 is pressed against inner surface 2a of cover plate 2 and elastically deforms, so that front end 31a of elastic member 31 and inner surface 2a of cover plate 2 are tightly attached to each other. By setting the forward protrusion dimension of the elastic member 31 from the front end 32c of the horizontal support portion 32a to be longer in advance, even if dimensional tolerances and assembly tolerances of each component accumulate, the front end 31a of the elastic member 31 can be abutted against the inner surface 2a of the cover plate 2 and deformed, thereby ensuring close contact between the front end 31a of the elastic member 31 and the inner surface 2a of the cover plate 2 and blocking leaked light L.

[0037] Next, the lower facing member 35, which is an exterior material, is assembled from below upward (Z1 direction), and the lower facing member 35 is fixed by screws to the holder 11 of the backlight unit 10. When the lower facing member 35 is assembled upward, the corrective protrusions 37 formed on the lower facing member 35 push the front portion of the elastic member 31 upward, so that the front end 31a of the elastic member 31 faces slightly upward and comes into close contact with the inner surface 2a of the cover plate 2 without any gaps.

[0038] In assembling the display device 1, if the protrusion dimension of the elastic member 31 from the front end 32c of the horizontal support portion 32a is set longer in advance, the front end 31a of the elastic member 31 can be brought into close contact with the inner surface 2a of the cover plate 2 simply by assembling the inner support member 32, which is a shield plate, facing forward relative to the backlight unit 10 without using any special jigs or the like. Furthermore, simply assembling the lower opposing member 35 facing upward can correct the elastic member 31 so that it deforms regularly. In this way, it is possible to block light L leaking from the gap 18a shown in FIG. 4 from leaking forward from the lower edge 2c of the cover plate 2 without using any special jigs, requiring no special assembly process, or generating any significant resistance during assembly.

[0039] FIG. 5 shows a display device 101 according to a second embodiment of the present invention. In this display device 101, an upward correcting protrusion 32d is integrally formed near the front end 32c of the horizontal support portion 32a of the inner support member 32, which is a shield plate. The correcting protrusion 32d is formed by partially pressing the horizontal support portion 32a, which is a metal plate. In the process of fixing the elastic member 31 to the upper surface of the horizontal support portion 32a with an adhesive or the like, the front end 31a of the elastic member 31 is lifted by the correcting protrusion 32d and deformed so that it faces upward. When the inner support member 32 is assembled forward toward the backlight unit 10 in this deformed state, the slightly upward-facing front end 31a is pressed against the inner surface 2a of the cover plate 2, causing the tip of the elastic member 31 to elastically deform upward in a regular manner, allowing the front end 31a to come into close contact with the inner surface 2a of the cover plate 2.

[0040] FIG. 6 shows a display device 201 according to a third embodiment of the present invention. This display device 201 has a corrective protrusion 137 that protrudes rearward from the inner surface 2a of the cover plate 2, slightly above the lower edge 2c. When the cover plate 2 is a glass plate, the corrective protrusion 137 is molded as a separate member using a synthetic resin material or the like and adhesively fixed to the inner surface 2a. Alternatively, the corrective protrusion 137 can be formed by applying a resin material to the inner surface 2a of the cover plate 2 using a potting method. When the cover plate 2 is made of a synthetic resin such as acrylic, the corrective protrusion 137 can be integrally formed with the cover plate 2. When the inner support member 32 is assembled forward toward the backlight unit 10, the front end 31a of the elastic member 31 fixed to the horizontal support portion 32a is guided by the corrective protrusion 137 and deformed upward, thereby coming into close contact with the inner surface 2a of the cover plate 2. This causes the tip of the elastic member 31 to elastically deform upward in a regular manner, allowing the front end 31a to come into close contact with the inner surface 2a of the cover plate 2. [Explanation of symbols]

[0041] 1 Display device 2 cover plates 2a Inner surface 2c edge 3 Display Cell 10 Backlight unit 11 Holding body 11a Inner wall 11b Lower frame 15 Backlight components 17 Joint surface 18 Opposite recess 18a Gap 19 Wiring recess 21 Flexible wiring board 31 Elastic member 32 Inner support member 35 Lower opposing member 37, 32d, 137 Correction protrusion 101, 201 Display device

Claims

1. A display device having a light-transmitting cover plate, a display cell disposed on the inner surface of the cover plate, and a backlight unit disposed inside the display cell, the backlight unit has a backlight component facing the display cell and a holder supporting the backlight component, and a flexible wiring board extending from the inner surface of the cover plate passes through a gap between the inner surface of the cover plate and the holder and extends toward the inside of the device; A display device characterized in that an elastic member for shading light is provided on an inner support member provided inside the device, and the elastic member is pressed against the inner surface of the cover plate between the flexible wiring board extending inside the device and the edge of the cover plate.

2. 2. The display device according to claim 1, further comprising a corrective protrusion provided inside the device for pressing the elastic member in a direction away from the edge of the cover plate.

3. 3. The display device according to claim 2, further comprising a facing member that faces the flexible wiring board extending inwardly of the device, and the correcting protrusion is provided on the facing member.

4. 4. The display device according to claim 3, wherein the opposing member is an exterior material of the device.

5. 3. The display device according to claim 2, wherein the correcting projection is provided on the inner support member that supports the elastic member.

6. 6. A display device according to claim 5, wherein the inner support member is a shield plate.

7. 2. The display device according to claim 1, wherein the correcting protrusion is provided on an inner surface of the cover plate.

8. a recessed portion is formed in the holder, which forms the gap between the holder and the inner surface of the cover plate, and the holder is joined to the inner surface of the cover plate at a portion other than the recessed portion, 8. The display device according to claim 1, wherein the elastic member is formed to be larger than a width dimension of the recess, and is provided in an area facing the recess.

9. A method for assembling a display device having a light-transmitting cover plate, a display cell disposed on an inner surface of the cover plate, and a backlight unit disposed inside the display cell, comprising the steps of: the backlight unit has a backlight component located inside the display cell and a holder supporting the backlight component, and an inner support member provided inside the device is provided with a light-blocking elastic member; (a) a step of extending a flexible wiring board protruding from the inner surface of the cover plate through a gap between the inner surface of the cover plate and the holder toward the inside of the device, and combining the cover plate with the backlight unit; (b) pressing the elastic member against the inner surface of the cover plate between the flexible wiring board extending inward from the device and an edge of the cover plate to assemble the inner support member; A method for assembling a display device, comprising the steps of:

10. An opposing member having a corrective protrusion is provided, 10. The display device assembling method according to claim 9, further comprising, after step (b), a step of combining the backlight unit and the opposing member and using the corrective protrusion to press the elastic member in a direction away from the edge of the cover plate.

11. 11. The method for assembling a display device according to claim 10, wherein the opposing member is an exterior material of the device.

12. The inner support member is provided with a corrective protrusion, 10. The method for assembling a display device according to claim 9, wherein the corrective projection presses the elastic member in a direction away from the edge of the cover plate when the elastic member is attached to the inner support member.

13. 13. The assembly method according to claim 12, wherein the inner support member is a shield plate.

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