Display panel and active matrix organic light emitting diode display device

Abstract

The present application relates to a display panel and an active matrix organic light emitting diode display device, wherein the display panel includes a support layer and a display module, wherein the support layer includes a plurality of connecting plates, wherein the connecting plates include a parallel upper plate and a lower plate, wherein the upper plate and the lower plate are staggered and connected by an inclined plate, wherein the angles between the inclined plate and the upper plate and the lower plate are all obtuse angles; wherein the plurality of connecting plates are arranged in a left-right direction, wherein the lower plate end of the connecting plate on the left side and the upper plate end of the connecting plate on the right side are opposite in the vertical direction and fixedly connected, and the upper plates of the two adjacent connecting plates are spaced apart; and the display module is fixed on the support layer. The present application has the effect of avoiding the phenomenon of stress concentration when bending and deformation occur as much as possible, and reducing the possibility of damage to the display panel caused by bending.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a display panel and an active matrix organic light emitting diode display device. Background Art

[0002] In order to improve the user's comfort when watching mobile devices such as mobile phones, the screens of mobile devices tend to be larger. However, a screen that is too large will limit its portability. In order to solve the problem that a large screen is easy to watch and easy to carry at the same time, some mobile devices use a folding screen. The folding screen uses a flexible display screen for folding. After folding, the screen size is reduced to improve portability. When in use, the screen can be unfolded to achieve a large-size display effect. When folding display products use a double-sided bending solution, the bending resistance is weak. During the folding process of the screen, the stress generated by the mutual compression of the film layer and the bending protective layer in the display area is difficult to release, resulting in the risk of cracking of the display panel, which seriously affects the use of the display panel. Summary of the invention

[0003] In order to reduce stress on a display panel and reduce damage to the display panel, the present application provides a display panel and an active matrix organic light emitting diode display device.

[0004] The present application provides a display panel and an active matrix organic light emitting diode display device using the following technical solutions:

[0005] In the first aspect, the present application provides a display panel, including a support layer and a display module, the support layer includes a plurality of support bars, the plurality of support bars are parallel and arranged in a front-to-back direction, each of the support bars includes a plurality of connecting plates, the connecting plates include a parallel upper plate and a lower plate, the upper plate and the lower plate are staggered and connected by an inclined plate, and the angles between the inclined plate and the upper plate and the lower plate are all obtuse angles; the plurality of connecting plates are arranged in a left-right direction, and in two adjacent connecting plates, the lower plate end of the connecting plate on the left and the upper plate end of the connecting plate on the right are opposite to each other in the top-to-bottom direction and fixedly connected, and the upper plates of the two adjacent connecting plates are spaced apart; the display module is fixed on the support layer.

[0006] By adopting the above technical solution, the entire support layer is set as a plurality of connection plates connected in sequence. Since the upper plate and the lower plate in each connection plate are connected by an inclined plate, when the display module and the support layer are bent, the inclined plate and the upper plate can be relatively bent, so that the connection between the inclined plate and the upper plate is deformed, and the inclined plate and the lower plate can be relatively bent, so that the connection between the inclined plate and the lower plate is deformed. Both connection points of each connection plate can be deformed, and the accumulation of small deformations at multiple connection points forms a large degree of deformation of the display panel, which can avoid the phenomenon of stress concentration when bending and deformation occur, and reduce the possibility of damage to the display panel due to bending. Multiple connection plates are connected to form a support layer, which can ensure the support strength of the support layer. The upper plate and the inclined plate can be bent toward each other or back to back, and the lower plate and the inclined plate can be bent toward each other or back to back. Therefore, the support layer formed by the connection of multiple connection plates can realize the bidirectional bending of the display panel, and can be selectively bent at any position of the inclined plate.

[0007] Optionally, the inclined plate is thick at the upper and lower ends and narrow in the middle.

[0008] By adopting the above technical solution, the middle part of the inclined plate is narrower, which can improve the flexibility of the inclined plate and make the stress smaller when the inclined plate is bent.

[0009] Optionally, wedge-shaped grooves are provided on both side surfaces of the connection between the inclined plate and the upper plate, and wedge-shaped grooves are provided on both side surfaces of the connection between the inclined plate and the lower plate.

[0010] By adopting the above technical solution, the setting of the wedge-shaped groove facilitates relative bending between the upper plate, the lower plate and the inclined plate, thereby reducing the stress concentration phenomenon caused by bending and deformation.

[0011] Optionally, the inclined plate is provided with a plurality of elliptical through holes, and the plurality of through holes are spaced apart in the front-to-back direction.

[0012] By adopting the above technical solution, a through hole is opened on the inclined plate, which can further avoid the stress concentration phenomenon when bending and deformation occurs. The through hole is elliptical, which can reduce stress concentration compared to a square through hole, and can enhance the strength of the inclined plate compared to a circular through hole.

[0013] Optionally, the long axis direction of the through hole is toward the upper plate and the lower plate.

[0014] By adopting the above technical solution, slight deformation can be easily occurred in the middle of the inclined plate, thereby reducing stress concentration.

[0015] Optionally, the connections between the upper plate, the lower plate and the inclined plate are all rounded.

[0016] By adopting the above technical solution, when the support layer is bent, the rounded corner setting can effectively alleviate stress concentration.

[0017] Optionally, the lower plate of the connecting plate on the left side and the upper plate of the connecting plate on the right side are connected via a support block, and the support block is elastic.

[0018] By adopting the above technical solution, when the supporting layer is bent, extrusion will also occur between the lower plate on the left and the upper plate on the right of the two adjacent connecting plates. By providing an elastic support block, stress concentration between the lower plate on the left and the upper plate on the right can be avoided.

[0019] Optionally, both the upper plate and the lower plate are provided with insertion holes, and an elastic protrusion is protruded from a position of the support block opposite to the insertion hole, and the protrusion is inserted into the insertion hole.

[0020] By adopting the above technical solution, the upper plate and the lower plate are provided with insertion holes, which can improve the flexibility of the upper plate and the lower plate, and elastic protrusions are inserted into the through holes, which can reduce the stress concentration at the insertion holes.

[0021] Optionally, the support layer and the protrusion are integrally formed.

[0022] By adopting the above technical solution, the strength of the connection between the support block and the protrusion can be enhanced, and the production of the support block and the protrusion can be facilitated.

[0023] In a second aspect, the present application also provides an active matrix organic light emitting diode display device, comprising the display panel as described above.

[0024] By adopting the above technical solution, double-sided bending of the display device can be achieved, while reducing the stress concentration phenomenon caused by bending deformation, thereby reducing the possibility of damage to the display panel due to bending.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The upper plate and the inclined plate can be bent toward each other or away from each other, and the lower plate and the inclined plate can be bent toward each other or away from each other. The support layer formed by connecting multiple connecting plates ensures the support strength of the support layer and can realize bidirectional bending of the display panel.

[0027] 2. When the display module and the supporting layer are bent, the two joints of each connecting plate may be deformed. The small deformations of multiple joints accumulate to form a larger deformation of the display panel, which can avoid the stress concentration phenomenon when bending and deformation occur, and reduce the possibility of damage to the display panel due to bending.

[0028] 3. A wedge-shaped groove is provided at the connection between the inclined plate and the upper plate and the lower plate to reduce the stress concentration phenomenon caused by bending and deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the structure of the display panel in Example 1 of the present application;

[0030] Figure 2 yes Figure 1 A local enlarged schematic diagram of the middle A;

[0031] Figure 3 yes Figure 1 A partial enlarged schematic diagram of point B in the middle;

[0032] Figure 4 It is a structural schematic diagram of the inclined plate in Example 2 of the present application.

[0033] Explanation of the reference numerals in the accompanying drawings: 100, supporting layer; 1, connecting plate; 1a, plug hole; 11, upper plate; 12, lower plate; 13, inclined plate; 13a, through hole; 14, connection; 14a, wedge-shaped groove; 2, supporting block; 21, protrusion; α, angle between the inclined plate and the upper plate; β, angle between the inclined plate and the lower plate; 200, display module; 300, shading layer; 400, back plate; 500, polarizer; 600, light guide; 700, cover plate. DETAILED DESCRIPTION

[0034] The following will be combined with the attached Figure 1-4 , the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0035] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0036] The present application may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0037] The embodiments of the present application disclose a display panel and an active-matrix organic light-emitting diode display device. The active-matrix organic light-emitting diode display device includes a display panel. The innovation lies in the display panel. The display panel is described in detail below.

[0038] Reference Figure 1 The display panel includes a supporting layer 100 and a display module 200. The display module 200 is fixed on the supporting layer 100. The entire surface of the supporting layer 100 supports the flexible display module 200. A shading layer 300 and a back plate 400 may be provided between the supporting layer 100 and the display module 200. A polarizer 500, a light guide plate 600 and a cover plate 700 may be provided on the side of the display module 200 facing away from the supporting layer 100. This is a prior art and is not described in detail.

[0039] like Figure 1 In the figure, the X direction is rightward, the Y direction is upward, and the direction perpendicular to both the X direction and the Y direction is the front-to-back direction. The support layer 100 includes a plurality of support bars, which are arranged in parallel and in the front-to-back direction. Figure 2 The support strip includes a plurality of connecting plates 1, each of which includes a parallel upper plate 11 and a lower plate 12 (combined Figure 3 ), the upper plate 11 and the lower plate 12 are staggered and connected by the inclined plate 13, the angle α between the inclined plate 13 and the upper plate 11 is an obtuse angle, and the angle β between the inclined plate 13 and the lower plate 12 is an obtuse angle, and the size of the angle α and the size of the angle β can be the same or different.

[0040] Multiple connecting plates 1 are arranged in the left and right directions. Among two adjacent connecting plates 1, the end of the lower plate 12 of the left connecting plate 1 and the end of the upper plate 11 of the right connecting plate 1 are opposite to each other in the upper and lower directions and fixedly connected. They can be directly connected or connected through an intermediary. Multiple connecting plates 1 are fixedly connected to form a whole, so that the supporting layer 100 can support the display module 200.

[0041] The upper plates 11 of two adjacent connecting plates 1 are spaced apart from each other, which can improve the flexibility of the entire supporting layer 100 , facilitate the bending of the supporting layer 100 , and reduce the stress on the display module 200 .

[0042] Understandable, such as Figure 3In the embodiment, the support layer 100 and the display module 200 can be bent upwards by being concave in the middle, so that the angle α between the inclined plate 13 and the upper plate 11 becomes larger, and the angle β between the inclined plate 13 and the lower plate 12 becomes smaller; the support layer 100 and the display module 200 can also be bent downwards by being convex in the middle, so that the angle α between the inclined plate 13 and the upper plate 11 becomes smaller, and the angle β between the inclined plate 13 and the lower plate 12 becomes larger. Therefore, the support layer 100 is set to a plurality of connecting plates 1, so that the display panel can be bent on both sides, and selective bending can occur at any position of the inclined plate 13. The number and size of the connecting plates 1 can be set according to actual needs. It can be understood that the more the number of connecting plates 1, the more uniform the stress distribution of the support layer 100, thereby reducing the possibility of damage to the display panel.

[0043] The connection 14 between the upper plate 11 and the inclined plate 13 is rounded, and the connection 14 between the lower plate 12 and the inclined plate 13 is rounded. When the support layer 100 is bent, the rounded corners can effectively alleviate stress concentration.

[0044] In an optional embodiment, the connecting plate 1 is a centrally symmetrical figure in cross section, and the angle α between the upper plate 11 and the inclined plate 13 is equal to the angle β between the inclined plate 13 and the lower plate 12. This arrangement ensures that the stresses to which the display panel is subjected when bent toward both sides are the same, and avoids excessive stress to which the display panel is subjected when bent toward one side, which may easily damage the display panel.

[0045] Furthermore, the inclined plate 13 is thick at the upper and lower ends and narrow in the middle, which can improve the flexibility of the inclined plate 13 and reduce the stress when the inclined plate 13 is bent. In other embodiments, the inclined plate 13 can also be set to have a uniform thickness at all locations.

[0046] Wedge-shaped grooves 14a are provided on both sides of the connection 14 between the inclined plate 13 and the upper plate 11, and wedge-shaped grooves 14a are provided on both sides of the connection 14 between the inclined plate 13 and the lower plate 12. The provision of the wedge-shaped grooves 14a facilitates relative bending between the upper plate 11, the lower plate 12 and the inclined plate 13, and reduces the stress concentration phenomenon generated when bending and deformation occur.

[0047] In an optional embodiment, the wedge-shaped grooves 14a on the two sides of the connection 14 can be arranged opposite to each other. In order to prevent the thickness of the connection 14 from being too small, in this embodiment, the wedge-shaped grooves 14a on the two sides of the connection 14 are staggered to ensure the strength of the connection 14 and prevent the connection 14 from being easily broken when the display panel is bent.

[0048] The lower plate 12 of the left connecting plate 1 and the upper plate 11 of the right connecting plate 1 are connected by a support block 2. The support block 2 is elastic. When the support layer 100 is bent, the lower plate 12 on the left and the upper plate 11 on the right of the two adjacent connecting plates 1 will also be squeezed. By providing the elastic support block 2, the stress concentration between the left lower plate 12 and the right upper plate 11 can be avoided. On the one hand, the support block 2 can play a certain buffering role on the squeezing stress between the upper plate 11 and the lower plate 12. On the other hand, the support block 2 is deformed to adapt to the spacing between the upper plate 11 and the lower plate 12 after squeezing. In other embodiments, the support block 2 can also be rigid to improve the overall strength of the support layer 100.

[0049] The upper plate 11 and the lower plate 12 are both provided with a plug hole 1a, and the support block 2 is provided with an elastic protrusion 21 at a position opposite to the plug hole 1a, and the protrusion 21 is inserted into the plug hole 1a. The plug hole 1a is provided on the upper plate 11 and the lower plate 12, which can improve the flexibility of the upper plate 11 and the lower plate 12, and the elastic protrusion 21 is inserted into the plug hole 1a, which can reduce the stress concentration at the plug hole 1a.

[0050] The support layer 100 and the protrusion 21 are integrally formed to enhance the strength of the connection between the support block 2 and the protrusion 21, and facilitate the production of the support block 2 and the protrusion 21. In other embodiments, the support block 2 and the protrusion 21 may also be independent and connected by adhesion or other means.

[0051] The implementation principle of a display panel in an embodiment of the present application is as follows: the entire support layer 100 is set as a plurality of connecting plates 1 connected in sequence. Since the upper plate 11 and the lower plate 12 in each connecting plate 1 are connected by an inclined plate 13, the display module 200 and the support layer 100 can be bent upward or downward to achieve double-sided bending. Specifically, when the display module 200 and the supporting layer 100 are bent upward, the connection 14 between the upper plate 11 and the inclined plate 13 is deformed, the angle α between the inclined plate 13 and the upper plate 11 increases, the connection 14 between the lower plate 12 and the inclined plate 13 is deformed, and the angle β between the inclined plate 13 and the lower plate 12 decreases; when the display module 200 and the supporting layer 100 are bent downward, the connection 14 between the upper plate 11 and the inclined plate 13 is deformed, the angle α between the inclined plate 13 and the upper plate 11 decreases, the connection 14 between the lower plate 12 and the inclined plate 13 is deformed, and the angle β between the inclined plate 13 and the lower plate 12 decreases.

[0052] Since both connection points 14 of each connection plate 1 can be deformed, the accumulation of small deformations of multiple connection points 14 forms a large deformation of the display panel, which can avoid the stress concentration phenomenon when bending and deformation occurs, and reduce the possibility of damage to the display panel due to bending. Wedge-shaped grooves 14a are provided on both sides of the connection point 14 to facilitate the deformation of the connection plate 1 and further reduce the phenomenon of concentrated stress.

[0053] Example 2

[0054] Reference Figure 4 The difference between Example 2 and Example 1 is that the inclined plate 13 is provided with a plurality of elliptical through holes 13a, and the plurality of elliptical through holes 13a are arranged at intervals in the front-to-back direction (the front-to-back direction is perpendicular to the X direction and the Y direction). The through holes 13a are provided on the inclined plate 13, which can further avoid the phenomenon of stress concentration when bending and deformation occurs. The through holes 13a are elliptical, which can reduce stress concentration compared with the square through holes 13a, and can enhance the strength of the inclined plate 13 compared with the circular through holes 13a.

[0055] Specifically, the long axis direction of the through hole 13a is toward the upper plate 11 and the lower plate 12, which is easier to cause slight deformation in the middle of the inclined plate 13 and reduce stress concentration compared with the short axis direction of the through hole 13a being toward the upper plate 11 and the lower plate 12.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: The invention comprises a support layer (100) and a display module (200), wherein the support layer (100) comprises a plurality of support bars, wherein the plurality of support bars are arranged in parallel and in a front-to-back direction, wherein each of the support bars comprises a plurality of connecting plates (1), wherein the connecting plates (1) comprise a parallel upper plate (11) and a lower plate (12), wherein the upper plate (11) and the lower plate (12) are arranged in a staggered manner and connected via an inclined plate (13), wherein the angles between the inclined plate (13) and the upper plate (11) and the lower plate (12) are all obtuse angles; wherein the plurality of connecting plates (1) are arranged in a left-right direction, wherein the end of the lower plate (12) of the left connecting plate (1) and the end of the upper plate (11) of the right connecting plate (1) are opposite to each other in a top-to-bottom direction and are fixedly connected, and the upper plates (11) of the two adjacent connecting plates (1) are spaced apart; and the display module (200) is fixed on the support layer (100).

2. The display panel according to claim 1, characterized in that: The inclined plate (13) is thick at the upper and lower ends and narrow in the middle.

3. The display panel according to claim 1, characterized in that: A wedge-shaped groove (14a) is provided on both sides of a connection (14) between the inclined plate (13) and the upper plate (11), and a wedge-shaped groove (14a) is provided on both sides of a connection (14) between the inclined plate (13) and the lower plate (12).

4. The display panel according to claim 1, characterized in that: The inclined plate (13) is provided with a plurality of elliptical through holes (13a), and the plurality of through holes (13a) are arranged at intervals in the front-rear direction.

5. The display panel according to claim 4, characterized in that: The long axis direction of the through hole (13a) faces the upper plate (11) and the lower plate (12).

6. The display panel according to claim 1, characterized in that: The connection points (14) between the upper plate (11), the lower plate (12) and the inclined plate (13) are all rounded.

7. The display panel according to claim 1, characterized in that: The lower plate (12) of the connecting plate (1) on the left side and the upper plate (11) of the connecting plate (1) on the right side are connected via a support block (2), and the support block (2) is elastic.

8. The display panel according to claim 7, characterized in that: The upper plate (11) and the lower plate (12) are both provided with a plug hole (1a) extending therethrough, and a resilient protrusion (21) is provided at a position of the support block (2) opposite to the plug hole (1a), and the protrusion (21) is inserted into the plug hole (1a).

9. The display panel according to claim 8, characterized in that: The support layer (100) and the protrusion (21) are integrally formed.

10. An active matrix organic light emitting diode display device, characterized in that: Comprising a display panel as described in any one of claims 1-9.

Images