A display module, a display panel and a display device

Abstract

The application discloses a display module, a display panel and a display device. The display module of one embodiment comprises a back plate with a groove, a light source in the groove, a light guide plate arranged in the back plate, an optical film material arranged on the side of the light guide plate away from the back plate, and a frame clamped with the back plate, wherein at least one end of the back plate is a first arc-shaped part; at least one end of the light guide plate is a second arc-shaped part, the radius of the first arc-shaped part is greater than the radius of the second arc-shaped part; and the frame comprises an avoiding slot opened at the position of the first arc-shaped part and clamped with the first arc-shaped part. The display module of the embodiment of the application can ensure the stability of product reliability, the better optical performance, the smaller product line process change and the realization of the design of the large-arc structure required by the terminal customer by designing different arc structures for different components of the display module and designing the avoiding slot avoiding the first arc-shaped part at the corresponding position of the frame.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display. More particularly, it relates to a display module, a display panel and a display device. BACKGROUND

[0002] In related display products, customers have requirements for the appearance structure of the display products, such as overall thickness and appearance smoothness. Display products that meet the design requirements of customers need to be redesigned in terms of drawings, production lines and production processes, which will affect product design time and product cost. Therefore, how to reduce structural and process changes as much as possible while meeting user requirements is a technical problem that needs to be solved. SUMMARY

[0003] The purpose of the present application is to provide a display module, a display panel and a display device to solve at least one of the problems in the prior art.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0005] The first aspect of the present application provides a display module, comprising: a back plate having a groove, a light source located in the groove, a light guide plate arranged in the back plate, and an optical film material arranged on the side of the light guide plate away from the back plate, and a frame clamped with the back plate,

[0006] wherein,

[0007] At least one end of the back plate is a first arc-shaped portion;

[0008] At least one end of the light guide plate is a second arc-shaped portion, and the radius of the first arc-shaped portion is greater than the radius of the second arc-shaped portion;

[0009] The frame comprises an avoidance slot opened at the position of the first arc-shaped portion and clamped with the first arc-shaped portion.

[0010] In an optional embodiment, the back plate further comprises a first horizontally arranged edge portion and a first vertically arranged edge portion, and the tangent line of the outer side wall of the back plate at the position of the first arc-shaped portion is located on a different straight line from the outer side wall of the first vertically arranged edge portion or the first horizontally arranged edge portion at the corresponding position.

[0011] The light guide plate further comprises a second horizontally arranged edge portion and a second vertically arranged edge portion, and the tangent line of the outer side wall of the light guide plate at the position of the second arc-shaped portion is located on the same straight line as the outer side wall of the second vertically arranged edge portion or the second horizontally arranged edge portion at the corresponding position.

[0012] In an optional embodiment, the direction of the back plate to the liquid crystal panel is a first direction,

[0013] The avoiding groove is an opening from the end edge of the frame to the first direction;

[0014] The depth of the opening is less than the height of the frame in the first direction.

[0015] In an optional embodiment, the optical film includes a third arc-shaped part with the same radius as the second arc-shaped part; the optical film includes oppositely arranged third horizontal edges and oppositely arranged third vertical edges, and the tangent of the outer side wall of the optical film at the position of the third arc-shaped part is on the same straight line as the outer side wall of the third vertical edge or the third horizontal edge at the corresponding position.

[0016] In an optional embodiment, the display module further includes a liquid crystal panel, the liquid crystal panel includes a fourth arc-shaped part corresponding to the position of the first arc-shaped part, and the radius of the fourth arc-shaped part is greater than the radius of the first arc-shaped part,

[0017] The liquid crystal panel includes oppositely arranged fourth horizontal edges and oppositely arranged fourth vertical edges, and the tangent of the outer side wall of the liquid crystal back plate at the position of the fourth arc-shaped part is on the same straight line as the outer side wall of the fourth vertical edge or the fourth horizontal edge at the corresponding position.

[0018] In an optional embodiment, the back plate includes a bottom plate and a plurality of side plates perpendicular to the bottom plate, and the plurality of side plates form the groove around the bottom plate;

[0019] Each of the side plates and the side surface of each of the light guide plates has a gap,

[0020] The display module further includes one or more positioning blocks in at least one gap.

[0021] In an optional embodiment, the light source is a side-in light source, the side-in light source is perpendicular to the bottom plate, and is fixed in a gap between one of the side plates and the side surface,

[0022] The positioning blocks are distributed in one or more gaps where the side-in light source is not arranged.

[0023] In an optional embodiment, the light source is a direct light source, and the direct light source is located on the bottom plate;

[0024] The positioning blocks are distributed in one or more gaps.

[0025] In an optional embodiment, the radius of the first arc-shaped part is 0.5-1 mm, and the radius of the second arc-shaped part is 8.5-9 mm.

[0026] The second aspect of the present application provides a display panel comprising the display module of the first aspect of the present application.

[0027] The third aspect of the present application provides a display device comprising the display panel of the first aspect of the present application.

[0028] The beneficial effects of the present application are as follows:

[0029] The display module of the embodiments of the present application realizes the design of large-arc structure required by the end customer by designing different arc structures for different components of the display module and designing an avoiding groove for avoiding the first arc-shaped part at the corresponding position of the frame. The combination design of the back plate, the light guide plate and the frame in the above embodiments of the present application can ensure stable product reliability, better optical performance and less product line process change, and therefore has a wide range of application scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0030] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0031] Figure 1 FIG. 1 shows a structural schematic diagram of a display module according to an embodiment of the present application;

[0032] Figure 2 FIG. 4 shows a combination schematic diagram of the arc-shaped part at the end position of the display module according to the embodiment of the present application;

[0033] Figure 3 FIG. 5 shows a top view structural schematic diagram of the display module at the end position according to the embodiment of the present application;

[0034] Figure 4 FIG. 6 shows a structural schematic diagram of the light guide plate at the end position of the display module according to the embodiment of the present application;

[0035] Figure 5 FIG. 7 shows a top view structural schematic diagram of the back plate at the end position of the display module according to the embodiment of the present application. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the present application, the present application will be further described below with reference to the embodiments and the accompanying drawings. Similar components are denoted by the same reference numerals in the drawings. Those skilled in the art should understand that the specific description below is illustrative rather than limiting, and should not limit the protection scope of the present application.

[0037] In a related display product, a customer has requirements for the appearance structure of the display product, such as overall thickness, appearance smoothness, and specifically, the customer requires the display product to be designed with a large-size round corner, and the display product that meets the design requirements of the customer needs to be redesigned with drawings, production lines and production processes, which will affect the product design time and product cost. Therefore, how to reduce the structural and process changes as much as possible while meeting the requirements of the user is a technical problem that needs to be solved.

[0038] Based on the design requirements of the end customer for the large-arc structure, if the original design is adopted, the structure of the display module is changed in the same proportion of the size, for example, when the size of the arc structure of the back plate is expanded, the size of the arc structure of the light guide plate is also expanded. This design can reduce the design time, but the problem is that the display module will have reliability and optical display defects. The inventor found that the reason for the above problems is that the structure of some display modules is not suitable for the same proportion of size expansion design, for example, the large-arc structure of the light guide plate will cause the problem of white light reflection in the corner, resulting in optical display defects; or the large-arc structure of the light guide plate is easy to collide with the back plate, resulting in low reliability of the display product. When the display module is in a vibration, drop, high temperature, etc. Environment, the reliability is poor. Therefore, the embodiments of the present application propose a display module, a display panel and a display device to solve one or more of the above problems.

[0039] The first embodiment of the present application proposes a display module, as shown in Figures 1-5 The display module includes a back plate 10 with a groove, a light source 20 located in the groove, a light guide plate 30 arranged in the back plate 10, and an optical film 40 arranged on the side of the light guide plate 30 away from the back plate 10, and a frame 50 clamped with the back plate 10,

[0040] Among them,

[0041] At least one end of the back plate 10 is a first arc portion 11;

[0042] At least one end of the light guide plate 30 is a second arc portion 31, and the radius of the first arc portion 11 is greater than the radius of the second arc portion 31;

[0043] The frame 50 includes an avoidance slot 51 opened at the position of the first arc portion 11 and clamped with the first arc portion 11.

[0044] The display module of the embodiment of the present application can realize the design of large-arc structure required by the terminal customer by designing different arc structures for different components of the display module and designing the avoiding groove 51 of the frame 50 at the corresponding position to avoid the first arc-shaped part 11, and the combination design of the back plate 10, the light guide plate 30 and the frame 50 in the above embodiment of the present application can ensure the stability of product reliability, the better optical performance and the smaller change of product line process, and therefore has a wide range of application scenarios.

[0045] The at least one end of the back plate 10 in the embodiment of the present application can be understood as each corner position of the back plate 10, for example, when the back plate 10 is in a rectangular structure, the four corners of the rectangle can be all set as arc structures to make the corners of the display module smooth, and in another example, when the display module is a special-shaped panel, the arc structure can be set at different corner positions according to actual needs to balance the process steps and design requirements.

[0046] Based on the same principle, the second arc-shaped part 31 of the light guide plate 30 in the embodiment can also be designed at one or more positions according to actual application.

[0047] In an optional embodiment, the radius of the first arc-shaped part 11 is 8.5-9 mm, and the radius of the second arc-shaped part 31 is 0.5-1 mm. Therefore, the arc radii of different components of the display module in the embodiment are different, the first arc-shaped part 11 is larger than the second arc-shaped part 31, and the smooth design of the display module can be realized in appearance, on the internal structure of the display module, on the one hand, the optical performance of the display module can be ensured, and on the other hand, the collision between internal devices can be avoided to improve the reliability.

[0048] In an optional embodiment, the greater the thickness of the display module is, the greater the radius of the first arc-shaped part 11 is, and according to the size of different display modules, a larger radius of the first arc-shaped part 11 can be set to adapt to different customer requirements.

[0049] In an optional embodiment, as shown in Figure 3 The back plate 10 further includes the oppositely arranged first horizontal edge part 12 and the oppositely arranged first vertical edge part 13, and the tangent line of the outer side wall of the back plate 10 at the position of the first arc-shaped part 11 is located on a different straight line from the outer side wall of the first vertical edge part 13 or the first horizontal edge part 12 at the corresponding position. That is, in the embodiment, the first arc-shaped part 11 is outwardly protruding compared with the first horizontal edge part 12 or the first vertical edge part 13 at the corresponding position.

[0050] For example, as shown in Figure 3As shown, one end of the first arc-shaped part 11 is connected to the first horizontal edge part 12, and the other end is connected to the first vertical edge part 13. The horizontal tangent line of the first arc-shaped part 11 is located outside the horizontal straight line where the first horizontal edge part 12 is located, forming the structure of the back plate 10 with the arc-shaped protruding end.

[0051] In this embodiment, the light guide plate 30 further includes a second horizontal edge part 32 and a second vertical edge part 33 arranged oppositely. The tangent line of the outer wall of the light guide plate 30 at the position of the second arc-shaped part 31 is located on the same straight line as the outer wall of the second vertical edge part 33 or the second horizontal edge part 32 at the corresponding position.

[0052] That is, the horizontal tangent line of the second arc-shaped part 31 of the light guide plate 30 is the position of the second horizontal edge part 32, and the vertical tangent line of the second arc-shaped part 31 of the light guide plate 30 is the position of the second vertical edge part 33. That is, the second arc-shaped part 31 of the light guide plate 30 in this embodiment is different from the protruding structure of the first arc-shaped part 11. The second arc-shaped part 31 of the light guide plate 30 and the second horizontal edge part 32 and the second vertical edge part 33 are smoothly formed. Based on this structure, there is a gap between the second arc-shaped part 31 of the light guide plate 30 and the first arc-shaped part 11 of the back plate 10, so there is no interference, the light efficiency of the light guide plate 30 is uniform, and there is no display defect of corner light leakage.

[0053] In an optional embodiment, as shown in Figure 2 and Figure 3 The direction of the back plate 10 to the liquid crystal panel is the first direction, that is, the film layer stacking thickness direction of the back plate 10 is the first direction.

[0054] As shown in Figure 2 The avoiding groove 51 is an opening opened from the end edge of the frame 50 to the first direction. The depth of the opening is less than the height of the frame 50 in the first direction.

[0055] The opening depth of the avoiding groove 51 in this embodiment is less than the overall thickness of the frame 50, that is, the opening of the avoiding groove 51 is not a through-thickness opening. In a specific example, the thickness of the frame 50 is 10 mm, and the remaining thickness of the frame 50 can be 3-5 mm. That is, the opening depth of the avoiding groove 51 can be 3-5 mm. The remaining part of the frame 50 is used to block the light, avoiding the problem of light leakage that may occur under the structure of the through opening.

[0056] In an optional embodiment, as shown in Figure 3 One direction in the horizontal plane where the back plate 10 is located is the second direction, and the other direction perpendicular to the second direction is the third direction. For example, as shown in Figure 3 The horizontal direction is the second direction, and the vertical direction is the third direction. As shown inFigure 2 One of the directions is the second direction, and the other direction is the third direction.

[0057] In this embodiment, as shown in Figure 2 and Figure 3 The avoiding groove 51 includes a first groove wall 511 extending in the first direction at one side end, a second groove wall 512 extending in the first direction at the other side end, and a groove bottom wall 513 connecting the first groove wall 511 and the second groove wall 512.

[0058] The perpendicular distance L1 between the end of the first groove wall 511 and the end of the second groove wall 512 in the second direction or in the third direction is greater than or equal to the radius of the first arc-shaped part 11.

[0059] That is, the avoiding groove 51 of this embodiment is designed to completely avoid the first arc-shaped part 11, avoiding the interference between the first arc-shaped part 11 and the avoiding groove 51. Preferably, the perpendicular distance between the end of the first groove wall 511 and the end of the second groove wall 512 in the second direction or in the third direction is equal to the radius of the first arc-shaped part 11, and the first arc-shaped part 11 and the avoiding groove 51 form a clamping and reduce the risk of light leakage.

[0060] In an optional embodiment, as shown in Figure 4 The optical film 40 includes a third arc-shaped part 41 with the same radius as the second arc-shaped part 31, and the optical film 40 includes a third horizontal edge part 42 and a third vertical edge part 43 arranged oppositely, and the tangent line of the outer side wall of the optical film 40 at the position of the third arc-shaped part 41 is located on the same straight line as the outer side wall of the third vertical edge part 43 or the third horizontal edge part 42 at the corresponding position.

[0061] The optical film 40 of this embodiment can include materials such as diffusion sheets and prism sheets. In this embodiment, the structure of the third arc-shaped part of the optical film 40 is the same as that of the second arc-shaped part 31 of the light guide plate 30, that is, the third arc-shaped part and the third vertical edge part, and the third arc-shaped part and the third horizontal edge part are smooth, and through this setting, the optical film 40 arranged above the light guide plate 30 is consistent with the structure of the light guide plate 30, further ensuring the display effect.

[0062] In an optional embodiment, as shown in Figure 1As shown, the display module further comprises a liquid crystal panel 60, the liquid crystal panel 60 comprises a fourth arc-shaped portion 61 corresponding to the position of the first arc-shaped portion 11, the radius of the fourth arc-shaped portion 61 is greater than the radius of the first arc-shaped portion 11. In an embodiment, if the radius of the first arc-shaped portion 11 of the back plate 10 is 8.5 mm, the radius of the fourth arc-shaped portion 61 can be 8.6-8.7 mm. That is, in the stacking direction of the display module, the radius of the fourth arc-shaped portion 61 is greater than the radius of the first arc-shaped portion 11, so that the film layer structure of the display module on the stacking structure is more rounded.

[0063] In an optional embodiment, as shown in Figure 1 As shown, the liquid crystal panel 60 comprises a fourth horizontal edge portion 62 and a fourth vertical edge portion 63 arranged oppositely, and the tangent line of the outer side wall of the liquid crystal back plate 10 at the position of the fourth arc-shaped portion 61 is located on the same straight line as the outer side wall of the fourth vertical edge portion 63 or the fourth horizontal edge portion 62 at the corresponding position.

[0064] In this embodiment, the fourth arc-shaped portion 61 and the fourth vertical edge portion 63, and the fourth arc-shaped portion 61 and the fourth horizontal edge portion 62 are both smooth, that is, the structure of the fourth arc-shaped portion 61 of the liquid crystal panel 60 is different from the structure design of the first arc-shaped portion 11 of the back plate 10, so as to reduce the process manufacturing difficulty of the liquid crystal panel 60.

[0065] In an optional embodiment, as shown in Figure 5 As shown, the back plate 10 comprises a bottom plate 14 and a plurality of side plates 15 perpendicular to the bottom plate 14, and the plurality of side plates 15 form the groove around the bottom plate 14;

[0066] There is a gap between each side plate 15 and the side surface of each light guide plate 30, so as to reserve the process error, avoid the positional deviation between the components, and avoid the collision damage between the structures such as the light guide plate 30, the optical film material 40 and the side plate 15 of the back plate 10.

[0067] In an optional embodiment, as shown in Figure 3 As shown, the display module further comprises one or more positioning blocks 70 located in at least one gap, and the positioning block 70 is used to further fix the light guide plate 30 in this embodiment, so as to avoid the collision between the light guide plate 30 and the side plate 15 of the back plate 10 during the moving process after the assembly of the light guide plate 30, and affect the reliability of the product.

[0068] In the embodiment of the application, according to the different structures of the display module, the positioning block 70 can have different placement modes, and different embodiments will be described.

[0069] In an alternative embodiment, the light source 20 is a side-in light source, which is fixed in a gap between the side plate 15 and the side surface perpendicularly to the bottom plate 14. In this embodiment, the side-in light source emits light to the side wall of the light guide plate 30, and the light guide plate 30 reflects the light to the surface of the light guide plate 30 parallel to the bottom plate 14, thereby realizing forward light emission.

[0070] Based on the side-in light source in this embodiment, the positioning blocks 70 are distributed in one or more gaps not provided with the side-in light source. That is, the positioning blocks 70 are not arranged in the gap position of the side-in light source side, thereby avoiding interference between the positioning blocks 70 and the side-in light source.

[0071] For example, at least two positioning blocks 70 are arranged in each gap. When two positioning blocks 70 are arranged, the two positioning blocks 70 are arranged in the gap at the end position of the first horizontal edge 12 or the first vertical edge 13, respectively. When three or more positioning blocks 70 are arranged, the positioning blocks 70 can be uniformly distributed in the gap positions, thereby ensuring the stability of positioning. The skilled in the art can design according to the actual application, which will not be described here.

[0072] In an alternative embodiment, as shown in Figure 5 the light source 20 is a direct light source, which is arranged on the bottom plate 14. In this embodiment, the direct light source directly emits light to the surface of the light guide plate 30 parallel to the bottom plate 14, thereby realizing forward light emission.

[0073] Based on the direct light source in this embodiment, the positioning blocks 70 are distributed in one or more gaps, preferably, the positioning blocks 70 can be arranged in the gaps around the light guide plate 30, thereby more stably positioning the light guide plate 30.

[0074] For example, at least two positioning blocks 70 are arranged in each gap. When two positioning blocks 70 are arranged, the two positioning blocks 70 are arranged in the gap at the end position of the first horizontal edge 12 or the first vertical edge 13, respectively. When three or more positioning blocks 70 are arranged, the positioning blocks 70 can be uniformly distributed in the gap positions, thereby ensuring the stability of positioning. The skilled in the art can design according to the actual application, which will not be described here.

[0075] Therefore, the display module in the embodiments of the present application can be applied to the display module of the direct light source and the display module of the side-in light source, such as desktop computers, desktop televisions, flat panel televisions, notebook computers and the like, thereby having wide application prospects.

[0076] Another embodiment of the present application provides a display panel, which comprises the display module according to any one of the above embodiments of the present application.

[0077] Another embodiment of the present application provides a display device, which comprises the display panel according to any one of the above embodiments of the present application, or comprises the display module according to any one of the above embodiments of the present application.

[0078] In the description of the present application, the relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or equipment comprising the element.

[0079] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description, and it is impossible to enumerate all the embodiments here. Any obvious changes or variations derived from the technical solutions of the present application are still within the protection scope of the present application.

Claims

1. A display module, characterized by The display module comprises a backboard with a groove, a light source located in the groove, a light guide plate arranged in the backboard, and an optical film arranged on the side of the light guide plate away from the backboard, and a frame clamped with the backboard, wherein, at least one end of the backboard is a first arc-shaped part; at least one end of the light guide plate is a second arc-shaped part, and the radius of the first arc-shaped part is greater than the radius of the second arc-shaped part; the frame comprises an avoiding slot opened at the position of the first arc-shaped part and clamped with the first arc-shaped part; the backboard further comprises a first horizontally arranged edge and a first vertically arranged edge, and the tangent of the outer side wall of the backboard at the position of the first arc-shaped part is not in the same straight line with the outer side wall of the first vertically arranged edge or the first horizontally arranged edge at the corresponding position; the light guide plate further comprises a second horizontally arranged edge and a second vertically arranged edge, and the tangent of the outer side wall of the light guide plate at the position of the second arc-shaped part is in the same straight line with the outer side wall of the second vertically arranged edge or the second horizontally arranged edge at the corresponding position.

2. The display module according to claim 1, wherein, the direction of the backboard to the liquid crystal panel is a first direction, the avoiding slot is an opening opened from the end edge of the frame to the first direction; the depth of the opening is less than the height of the frame in the first direction.

3. The display module of claim 1, wherein, the optical film comprises a third arc-shaped part, and the radius of the third arc-shaped part is the same as the radius of the second arc-shaped part; the optical film comprises a third horizontally arranged edge and a third vertically arranged edge, and the tangent of the outer side wall of the optical film at the position of the third arc-shaped part is in the same straight line with the outer side wall of the third vertically arranged edge or the third horizontally arranged edge at the corresponding position.

4. The display module of claim 1, wherein, the display module further comprises a liquid crystal panel, and the liquid crystal panel comprises a fourth arc-shaped part corresponding to the position of the first arc-shaped part, and the radius of the fourth arc-shaped part is greater than the radius of the first arc-shaped part, the liquid crystal panel comprises a fourth horizontally arranged edge and a fourth vertically arranged edge, and the tangent of the outer side wall of the liquid crystal panel at the position of the fourth arc-shaped part is in the same straight line with the outer side wall of the fourth vertically arranged edge or the fourth horizontally arranged edge at the corresponding position.

5. The display module according to any one of claims 1-4, wherein, the backboard comprises a bottom plate and a plurality of side plates perpendicular to the bottom plate, and the plurality of side plates form the groove around the bottom plate; each side plate and each side surface of the light guide plate have a gap therebetween, the display module further comprises one or more positioning blocks located in at least one gap.

6. The display module according to claim 5, wherein, the light source is a side-in light source, and the side-in light source is perpendicular to the bottom plate and fixed in a gap between one side plate and the side surface, the positioning blocks are distributed in one or more gaps where the side-in light source is not arranged.

7. The display module according to claim 5, wherein, The light source is a direct light source, which is located on the bottom plate. The positioning blocks are distributed in one or more gaps.

8. The display module of claim 1, wherein, The radius of the first arc-shaped part is 0.5-1 mm, and the radius of the second arc-shaped part is 8.5-9 mm.

9. A display panel, characterized by, The display panel comprises the display module according to any one of claims 1-8.

10. A display device, characterized by comprising: The display device comprises the display panel according to claim 9.

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