Display device

Abstract

The utility model discloses a display device which comprises a backlight module, a display panel arranged on the backlight module and a driving chip arranged on the display panel, and the backlight module comprises a back plate; the back plate comprises a bottom plate, a side plate connected with the bottom plate and a top plate connected with the side plate, the top plate is provided with a plurality of retaining walls, the retaining walls are located above the side plate, and the plane where the top surfaces of the retaining walls are located is not lower than the plane where the top surface of the driving chip is located. According to the display device, the retaining wall is arranged on the top plate and located above the side plate, the plane where the top face of the retaining wall is located is not lower than the plane where the top face of the driving chip is located, and when the display device is subjected to an impact test, the retaining wall can preferably bear the acting force generated by a falling ball; the retaining wall can play a role in protecting the display panel, so that the problem that the display panel of the display device is easy to generate fragments is solved.

Description

Technical Field

[0001] This application relates to the field of display technologies, and particularly to a display device. Background Art

[0002] The four-side borders of display devices are getting narrower and narrower. When performing an impact test on a display device, the force generated by a dropped ball will directly act on the display panel, resulting in a chip problem easily occurring in the area where the display panel is bonded to the backlight module. Utility Model Content

[0003] Embodiments of this application provide a display device to improve the chip problem that is likely to occur in the display panel of the display device.

[0004] Embodiments of this application provide a display device, including a backlight module, a display panel disposed on the backlight module, and a driving chip disposed on the display panel. The backlight module includes:

[0005] A backplane, which includes a bottom plate, side plates connected to the bottom plate, and a top plate connected to the side plates. A plurality of retaining walls are provided on the top plate, and the retaining walls are located above the side plates. The plane where the top surface of the retaining wall is located is not lower than the plane where the top surface of the driving chip is located.

[0006] Furthermore, a plurality of openings are formed on the top plate, and among them, the retaining walls are located at the edges of the openings.

[0007] Furthermore, the angle formed by the retaining wall and the plane where the top surface of the top plate is located is 89° - 91°.

[0008] Furthermore, the retaining wall includes a first folding portion, and the first folding portion is perpendicular to the plane where the top surface of the top plate is located.

[0009] Furthermore, the retaining wall further includes a bending portion and a second folding portion, and the second folding portion is connected to the first folding portion through the bending portion.

[0010] Furthermore, the second folding portion is parallel to the first folding portion.

[0011] Furthermore, in the top view of the display device, the second folding portion does not overlap with the bottom plate.

[0012] Furthermore, the display device further includes a driving chip, the driving chip is disposed on the display panel, and the plane where the top surface of the driving chip is located is lower than the plane where the top surface of the retaining wall is located.

[0013] Furthermore, the height difference between the plane where the top surface of the driving chip is located and the plane where the top surface of the retaining wall is located is not less than 0.2 mm.

[0014] Furthermore, the backlight module further includes a light bar and a first reflector. The light bar is disposed on the bottom plate, and the light bar is located between the bottom plate and the top plate. The first reflector is disposed on the surface of the top plate close to the bottom plate. In a top view of the display device, the first reflector overlaps with the opening, and the first reflector overlaps with the light bar.

[0015] Furthermore, the distance between two adjacent retaining walls is equal.

[0016] Advantages of the present application:

[0017] The present application provides a display device. By providing that the backplane includes a bottom plate, side plates connected to the bottom plate, and a top plate connected to the side plates, a retaining wall is provided on the top plate, and the retaining wall is located above the side plates. The plane where the top surface of the retaining wall is located is not lower than the plane where the top surface of the driving chip is located. When an impact test is performed on the display device, the retaining wall can preferentially bear the acting force generated by the falling ball, so that the retaining wall can play a role in protecting the display panel, thereby improving the problem of easy fragmentation of the display panel of the display device; at the same time, the retaining wall can play a role in protecting the driving chip and prevent the driving chip from colliding with the housing of the display device and causing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a top view of the first display device of the present application;

[0019] Figure 2 is Figure 1 a cross-sectional view of the display device shown at the A-A' position;

[0020] Figure 3 is Figure 1 a cross-sectional view of the display device shown at the B-B' position;

[0021] Figure 4 is Figure 1 a schematic diagram of the backplane of the display device shown;

[0022] Figure 5 is a top view of the second display device of the present application;

[0023] Figure 6 is Figure 5 a cross-sectional view of the display device shown at the C-C' position;

[0024] Figure 7 is Figure 5 a schematic diagram of the backplane of the display device shown;

[0025] Figure 8It is a schematic diagram of the display device of the present application during the impact test;

[0026] Figure 9 It is a schematic diagram of the state corresponding to the first display device of the present application during the impact test.

[0027] 100 - Backlight module, 110 - Backplane, 111 - Bottom plate, 112 - Side plate, 113 - Top plate, 1131 - Retaining wall, 11311 - First folding part, 11312 - Bending part, 11313 - Second folding part, 1132 - Opening, 120 - Light bar, 130 - First reflector, 131 - First reflecting part, 132 - Second reflecting part, 133 - Third reflecting part, 140 - Light guide plate, 150 - First polarizer, 160 - Optical film, 170 - Second polarizer, 180 - Adhesive, 190 - Second reflector; 200 - Display panel; 300 - Driver chip.

[0028] 10 - Carrier board; 20 - Display device; 30 - Spacer; 40 - Drop ball. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application. The technical solutions described below are only used to explain and illustrate the idea of the present application, and should not be regarded as a limitation on the protection scope of the present application.

[0030] In addition, terms such as "first" and "second" and similar words do not represent any order, quantity or importance, but are only used to distinguish different technical features. Terms such as "multiple" and similar words mean two or more, unless otherwise clearly defined.

[0031] Embodiments of the present application provide a display device. Referring to Figures 1 - 7 , the display device includes a backlight module 100 and a display panel 200 disposed on the backlight module 100, and the backlight module 100 includes a backplane 110.

[0032] Specifically, the backplane 110 includes a bottom plate 111, side plates 112 connected to the bottom plate 111, and a top plate 113 connected to the side plates 112. A plurality of retaining walls 1131 are provided on the top plate 113, and the retaining walls 1131 are located above the side plates 112. The plane where the top surface of the retaining wall 1131 is located is not lower than the plane where the top surface of the driver chip 300 is located.

[0033] When manufacturing a display device, due to process requirements, on the light-incident side of the display device, the distance from the display area of the display device to the outer edge of the display device is 6.5 mm, and the distance from the display area of the display panel 200 to the outer edge of the non-display area of the display panel 200 is 5.9 mm. Then, there is only 0.6 mm of space from the outer edge of the non-display area of the display panel 200 to the outer edge of the display device. Among them, when forming a U-fold on the backplane 110, the side plate 112 of the backplane 110 occupies a width of 0.3 mm. After removing the 0.05 mm width occupied by the edge-sealing glue of the outer edge of the display device, the available width from the display area of the display panel 200 to the outer edge of the non-display area of the display panel 200 is 0.25 mm. Since the rubber frame is generally obtained by injection molding, the thinnest thickness of the rubber frame is 0.35 mm. Therefore, the remaining space between the display area of the display device and the outer edge of the display device is not sufficient to make a retaining wall; when performing an impact test on the display device, the force generated by the falling ball will directly act on the display panel 200, resulting in a problem of fragmentation easily occurring in the area where the display panel 200 is bonded to the backlight module 100. Therefore, in this embodiment, by providing that the backplane 110 includes a bottom plate 111, a side plate 112 connected to the bottom plate 111, and a top plate 113 connected to the side plate 112, a plurality of retaining walls 1131 are provided on the top plate 113, and the retaining walls 1131 are located above the side plate 112. The plane where the top surface of the retaining wall 1131 is located is not lower than the plane where the top surface of the driving chip 300 is located. When performing an impact test on the display device, the retaining wall 1131 can preferentially bear the force generated by the falling ball, so that the retaining wall 1131 can play a role in protecting the display panel 200, thereby improving the problem of fragmentation that is likely to occur in the display panel 200 of the display device; at the same time, the retaining wall 1131 can play a role in protecting the driving chip 300, avoiding damage caused by the collision between the driving chip 300 and the housing of the display device.

[0034] In this embodiment, the display device is a notebook computer or a tablet.

[0035] In this embodiment, a plurality of openings 1132 are further formed on the top plate 113, and among them, the retaining walls 1131 are located at the edges of the openings 1132.

[0036] In this embodiment, referring to Figure 4 and Figure 7 , the openings 1132 are formed by folding the retaining walls 1131 in the direction away from the backplane 110, and among them, the direction in which the retaining walls 1131 are folded away from the backplane 110 is the clockwise direction. By providing that the openings 1132 are formed by folding the retaining walls 1131 in the direction away from the backplane 110, the materials used in manufacturing the display device can be saved, and the cost can be reduced.

[0037] In this embodiment, the positions of the openings 1132 correspond to those of the retaining walls 1131, and the numbers are the same.

[0038] In this embodiment, the number of openings 1132 is 3, 4, 5, 6 or 7.

[0039] In this embodiment, the number of retaining walls 1131 is 3, 4, 5, 6 or 7.

[0040] In this embodiment, the distance between two adjacent retaining walls 1131 is equal. By setting the equal distance between two adjacent retaining walls 1131, the multiple retaining walls 1131 can bear the acting force generated by the falling ball more evenly, thereby further improving the protection effect of the retaining wall 1131 on the display panel 200.

[0041] In this embodiment, the angle formed by the retaining wall 1131 and the plane where the top surface of the top plate 113 is located is 89°-91°. By setting the angle formed by the retaining wall 1131 and the top plate 113 to be 89°-91°, on the one hand, it can avoid the problem that the gap between the retaining wall and the display panel 200 is reduced due to the too small angle formed by the retaining wall 1131 and the top plate 113, resulting in an increase in the assembly difficulty of the display panel 200 and the problem of fragments generated by the collision between the display panel 200 and the retaining wall 1131. On the other hand, it can ensure that the retaining wall 1131 bears the acting force of the small ball, thereby ensuring the protection effect of the retaining wall 1131.

[0042] In this embodiment, the angle formed by the retaining wall 1131 and the top plate 113 is 89°, 89.5°, 89°, 90.5° or 91°.

[0043] In this embodiment, referring to Figure 2 and Figure 4 , the retaining wall 1131 includes a first folding part 11311, and the first folding part 11311 is perpendicular to the plane where the top surface of the top plate 113 is located. Compared with the scheme where the first folding part 11311 is not perpendicular to the top plate 113, since the first folding part 11311 is perpendicular to the top plate 113, the retaining wall 1131 can bear the acting force generated by the falling ball more effectively, so that the retaining wall 1131 can protect the display panel 200 more effectively, thereby better improving the problem of fragments of the display panel 200 of the display device.

[0044] In this embodiment, referring to Figure 6 and Figure 7 , the retaining wall 1131 further includes a bending part 11312 and a second folding part 11313, and the second folding part 11313 is connected to the first folding part 11311 through the bending part 11312. By setting the second folding part 11313, the second folding part 11313 can strengthen the strength of the retaining wall 1131, thereby improving the structural stability of the retaining wall 1131.

[0045] In this embodiment, referring to Figure 6 andFigure 7 The second folding portion 11313 is parallel to the first folding portion 11311. By setting the second folding portion 11313 parallel to the first folding portion 11311, the strength of the retaining wall 1131 can be enhanced, and compared with the solution where the second folding portion 11313 and the first folding portion 11311 are non - parallel, the space occupied by forming the retaining wall 1131 can be reduced. In this embodiment, in the top view of the display device, the second folding portion 11313 does not overlap with the bottom plate 111. By setting that in the top view of the display device, the second folding portion 11313 does not overlap with the bottom plate 111.

[0046] In this embodiment, in the top view of the display panel 200, the driving chip 300 overlaps with a part of the top plate 113.

[0047] In this embodiment, the height difference between the plane where the top surface of the driving chip 300 is located and the plane where the top surface of the retaining wall 1131 is located is not less than 0.2 mm. By setting the height difference between the plane where the top surface of the driving chip 300 is located and the plane where the top surface of the retaining wall 1131 is located to be not less than 0.2 mm, the protection effect of the retaining wall 1131 on the driving chip 300 can be ensured.

[0048] In this embodiment, referring to Figure 4 , when the retaining wall 1131 includes the first folding portion 11311, the height difference not less than 0.2 mm between the plane where the top surface of the driving chip 300 is located and the plane where the top surface of the retaining wall 1131 is located defines that the height difference between the plane where the top surface of the driving chip 300 is located and the plane where the top surface of the first folding sub - portion is located is not less than 0.2 mm.

[0049] In this embodiment, referring to Figure 6 , when the retaining wall 1131 further includes the bending portion 11312 and the second folding portion 11313, the height difference not less than 0.2 mm between the plane where the top surface of the driving chip 300 is located and the plane where the top surface of the retaining wall 1131 is located defines that the height difference between the plane where the top surface of the driving chip 300 is located and the top line of the bending portion 11312 is not less than 0.2 mm.

[0050] In this embodiment, the height difference between the plane where the top surface of the driving chip 300 is located and the plane where the top surface of the retaining wall 1131 is located is 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, or 0.7 mm. In this embodiment, the backlight module 100 further includes a light bar 120 and a first reflective sheet 130. The light bar 120 is disposed on the bottom plate 111, and the light bar 120 is located between the bottom plate 111 and the top plate 113. The first reflective sheet 130 is disposed on the surface of the top plate 113 close to the bottom plate 111. In the top view of the display device, the first reflective sheet 130 overlaps with the opening 1132, and the first reflective sheet 130 overlaps with the light bar 120. By setting that in the top view of the display device, the first reflective sheet 130 overlaps with the opening 1132 and the first reflective sheet 130 overlaps with the light bar 120, the reflective sheet can reflect the light emitted by the lamp beads of the light bar 120, and the first reflective sheet 130 can block the light emitted by the lamp beads of the light bar 120 from being emitted to the outside through the opening 1132, thereby reducing the light leakage of the display device.

[0051] In this embodiment, referring to Figure 2 , Figure 3 and Figure 6 , the first reflective sheet 130 includes a first reflective portion 131, a second reflective portion 132, and a third reflective portion 133. One side of the first reflective portion 131 is connected to the second reflective portion 132, and the other side of the third reflective portion 133 is connected to the second reflective portion 132. The third reflective portion 133 is located on the light guide plate 140. In the top view of the display device, the first reflective portion 131 overlaps with the opening 1132, and the first reflective portion 131 overlaps with the light bar 120.

[0052] In this embodiment, the backlight module 100 further includes a light guide plate 140, and the light guide plate 140 is disposed on the bottom plate 111.

[0053] In this embodiment, the lamp beads of the light bar 120 are located between the light guide plate 140 and the side plate 112.

[0054] In this embodiment, the backlight module further includes a second reflective sheet 190, and the second reflective sheet 190 is disposed on the surface of the light guide plate 140 close to the bottom plate 111.

[0055] In this embodiment, the backlight module 100 further includes a first polarizer 150, and the first polarizer 150 is disposed on the light guide plate 140.

[0056] In this embodiment, a part of the first polarizer 150 covers the third reflective portion 133.

[0057] In this embodiment, the second reflective portion 132 is inclined.

[0058] In this embodiment, the backlight module 100 further includes an optical film 160. The optical film 160 is disposed on a surface of the first polarizing plate 150 away from the light guide plate 140. In a top view of the display device, a part of the optical film 160 overlaps with a part of the first polarizing plate 150.

[0059] In this embodiment, the backlight module 100 further includes a second polarizing plate 170. The second polarizing plate 170 is disposed on a surface of the display panel 200 close to the light guide plate 140.

[0060] In this embodiment, the display device further includes an adhesive 180. A part of the display panel 200 is fixed to the top plate 113 through the adhesive 180.

[0061] The technical solution of this application is specifically as follows:

[0062] When manufacturing the display device, due to process requirements, on the light incident side of the display device, the distance from the display area of the display device to the outer edge of the display device is 6.5 mm, and the distance from the display area of the display panel 200 to the outer edge of the non-display area of the display panel 200 is 5.9 mm. Then, there is only 0.6 mm of space from the outer edge of the non-display area of the display panel 200 to the outer edge of the display device. Among them, when the U-fold is formed on the backplane 110, the side plate 112 of the backplane 110 occupies a width of 0.3 mm. After removing the 0.05 mm width occupied by the edge sealing adhesive of the outer edge of the display device, the available width from the display area of the display panel 200 to the outer edge of the non-display area of the display panel 200 is 0.25 mm. Since the rubber frame is generally obtained by injection molding and the thinnest thickness of the rubber frame is 0.35 mm, the remaining space between the display area of the display device and the outer edge of the display device is not enough to make a retaining wall. Refer to Figure 8 and Figure 9 , so in the display device of the embodiment of this application, when performing the impact test, the display device is placed on the carrier plate 10, wherein the display surface of the display device is close to the upper surface of the carrier plate 10. Then, a cushion block 30 is arranged on the display device, wherein the cushion block 30 is located at a position on the display device corresponding to the top plate 113 of the backplane 110. After that, a falling ball 40 with a predetermined weight is used to drop the falling ball 40 at a preset distance. When the falling ball 40 contacts the cushion block 30, due to the arrangement of the retaining wall 1131, the retaining wall 1131 can preferentially bear the acting force generated by the falling ball, so that the retaining wall 1131 can play a role in protecting the display panel 200, thereby improving the problem of broken fragments of the display panel 200 of the display device.

[0063] The specific implementation manners of the present application have been described in detail above. The above-described implementation manners disclosed by the present application are only the preferred implementation manners of the present application. For those of ordinary skill in the art, many variations and improvements can be made without departing from the concept of the present application. These variations and improvements all fall within the protection scope defined by the claims of the present application.

Claims

1. A display device, characterized in that, It includes a backlight module (100), a display panel (200) disposed on the backlight module (100), and a driving chip (300) disposed on the display panel (200). The backlight module (100) includes: a back plate (110), the back plate (110) includes a bottom plate (111), a side plate (112) connected to the bottom plate (111), and a top plate (113) connected to the side plate (112). A plurality of retaining walls (1131) are provided on the top plate (113), and the retaining walls (1131) are located above the side plate (112). The plane where the top surface of the retaining wall (1131) is located is not lower than the plane where the top surface of the driving chip (300) is located.

2. The display device according to claim 1, wherein A plurality of openings (1132) are further formed on the top plate (113), wherein the retaining walls (1131) are located at the edges of the openings (1132).

3. The display device according to claim 1, wherein The included angle formed by the retaining wall (1131) and the plane where the top surface of the top plate (113) is located is 89° - 91°.

4. The display device according to claim 3, wherein The retaining wall (1131) includes a first folding portion (11311), and the first folding portion (11311) is perpendicular to the plane where the top surface of the top plate (113) is located.

5. The display device according to claim 4, characterized in that, The retaining wall (1131) further includes a bending portion (11312) and a second folding portion (11313), and the second folding portion (11313) is connected to the first folding portion (11311) through the bending portion (11312).

6. The display device according to claim 5, wherein The second folding portion (11313) is parallel to the first folding portion (11311).

7. The display device according to claim 6, wherein In the top view of the display device, the second folding portion (11313) does not overlap with the bottom plate (111).

8. The display device according to claim 1, wherein The height difference between the plane where the top surface of the driving chip (300) is located and the plane where the top surface of the retaining wall (1131) is located is not less than 0.2 mm.

9. The display device according to claim 2, wherein, The backlight module (100) further includes a light bar (120) and a first reflector. The light bar (120) is disposed on the bottom plate (111), and the light bar (120) is located between the bottom plate (111) and the top plate (113). The first reflector is disposed on the surface of the top plate (113) on the side close to the bottom plate (111). In the top view of the display device, the first reflector overlaps with the opening (1132), and the first reflector overlaps with the light bar (120).

10. The display device according to claim 1, wherein The distance between two adjacent retaining walls (1131) is equal.

Images