CN210722214U - Display panel - Google Patents
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- CN210722214U CN210722214U CN202020038177.1U CN202020038177U CN210722214U CN 210722214 U CN210722214 U CN 210722214U CN 202020038177 U CN202020038177 U CN 202020038177U CN 210722214 U CN210722214 U CN 210722214U
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- display panel
- protective layer
- bending
- layer
- protrusion
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- 239000011241 protective layer Substances 0.000 claims abstract description 74
- 238000005452 bending Methods 0.000 claims abstract description 63
- 239000010410 layer Substances 0.000 claims description 68
- 239000007853 buffer solution Substances 0.000 claims description 16
- 239000000872 buffer Substances 0.000 claims description 11
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000004308 accommodation Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
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Abstract
The application provides a display panel, and relates to the technical field of display. The display panel includes: a display panel including a bending region; and at least one protective layer disposed on a surface of the display panel, the protective layer including a receiving cavity and at least one protrusion; the accommodating cavity comprises a bottom surface close to the display panel, and the at least one protrusion is arranged on the bottom surface and corresponds to the bending area in position. The display panel that the embodiment of this application provided is through setting up at least one arch on the protective layer to effectively reduced display panel by the tensile deformation that the protective layer pulling leads to, and then effectively reduced display panel's the stress of buckling, effectively reduced display panel's inside damage. In addition, at least one bulge is arranged in the accommodating cavity, so that the bulge is prevented from being exposed, and the flatness of the protective layer is maintained.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel.
Background
With the development of flexible display technology, flexible display panels are increasingly popular in the market. However, after the flexible display panel is bent for a certain period of time, there is a problem that the display fails, resulting in a low service life of the flexible display panel.
Therefore, how to prolong the service life of the flexible display panel becomes an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
In view of this, embodiments of the present application are directed to provide a display panel, so as to solve the problem of a flexible display panel in the prior art that the service life is short.
One aspect of the present application provides a display panel, including: a bending zone; the protective layer comprises a plurality of bulges arranged at intervals in the bending area, accommodating cavities formed between the adjacent bulges and a covering layer which covers the bulges and seals the accommodating cavities; and a buffer solution filled in the accommodating cavity.
In one embodiment of the present application, the buffer does not completely fill the containment cavity.
In one embodiment of the present application, adjacent receiving cavities communicate through a through-hole passing through the protrusion.
In one embodiment of the present application, the extending direction of the through hole is parallel to the plane of the bending region.
In one embodiment of the present application, the distance of the through holes on each protrusion is equal to the distance of the plane where the bending area is located.
In one embodiment of the present application, the through holes in each projection extend in parallel.
In one embodiment of the present application, along a direction perpendicular to a plane of the bending region, a cross section of the protrusion is a trapezoid, and a long bottom of the trapezoid is located on the bending region.
In one embodiment of the present application, the cross-section of the receiving cavity is triangular along a direction perpendicular to the plane of the bending region.
In one embodiment of the present application, the buffer has the same refractive index as the protrusions.
In one embodiment of the present application, the protrusions are made of an elastic material.
The display panel provided by the embodiment of the application is characterized in that a plurality of bulges arranged at intervals in the bending area, accommodating cavities formed between the adjacent bulges and a covering layer covering the bulges and closing the accommodating cavities are arranged on the protective layer; buffer solution is filled in the accommodating cavity, so that the tensile deformation caused by the pulling of the protective layer on the display panel is effectively reduced, the bending stress of the display panel is effectively reduced, and the damage to the inside of the display panel is effectively reduced. In addition, at least one protrusion is arranged in the accommodating cavity, so that the protrusion is prevented from being exposed, the flatness of the protective layer is maintained, and the buffer solution in the accommodating cavity further improves the bending resistance of the bending area of the display panel.
Drawings
Fig. 1 is a schematic structural diagram of a bending region of a display panel according to an embodiment of the present application.
Fig. 2a to 2b are schematic views illustrating a display panel in a bent state according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a bending region of a display panel according to another embodiment of the present application.
Fig. 4 is a schematic structural diagram of a bending region of a display panel according to another embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
As described in the background art, the flexible display panel has a problem of display failure after being bent for a certain period of time. After research, it is found that the display failure of the flexible display panel is caused by damage occurring inside the display panel of the flexible display panel. That is, the flexible display panel is damaged inside the display panel by the bending stress.
Therefore, if the bending stress of the flexible display panel can be reduced, the damage to the inside of the flexible display panel can be effectively reduced.
Fig. 1 is a schematic structural diagram of a bending region 11 of a display panel according to an embodiment of the present application. Fig. 2a to 2b are schematic views illustrating a display panel in a bent state according to an embodiment of the present application.
Based on this, embodiments of the present application provide a display panel. As shown in fig. 1, the display panel may include: a bending zone 11; the protective layer 2 comprises a plurality of bulges 22 arranged at intervals in the bending area 11, accommodating cavities 212 formed between the adjacent bulges 22 and a covering layer 213 which covers the bulges 22 and closes the accommodating cavities 212; and a buffer solution filled in the accommodating chamber 212.
In other words, the display panel may comprise a carrier layer 1 and at least one protective layer 2 arranged on a surface 12 of the carrier layer 1. The carrier layer 1 may comprise a bending zone 11. The protective layer 2 may comprise a receiving space 21 and at least one protrusion 22 alternating with a relief. The receiving space 21 may include a bottom surface 211 adjacent to the carrier layer 1, at least one protrusion 22 may be disposed on the bottom surface 211, and the at least one protrusion 22 may be disposed at a position corresponding to the bending region 11.
In particular, the carrier layer 1 may be a flexible display layer comprising corresponding bending zones 11. When the display panel is bent, the carrier layer 1 may be bent at a portion corresponding to the bending region 11. Furthermore, the carrier layer 1 may also comprise non-folded regions. In the non-bending region, the carrier layer 1 may not be bent due to the limitation of the internal structure, or may not be bent due to the limitation of the external structure. That is, when the outer structure is removed, the non-bending region of the carrier layer 1 may also be bent.
The display panel may include one or more protective layers 2. When the number of protective layers 2 is one, the number of surfaces 12 of the carrier layer 1 provided with the protective layers 2 may be one. When the number of the protective layers 2 is plural, the number of the surfaces 12 of the carrier layer 1 on which the protective layers 2 are provided may be the same as the number of the protective layers 2. That is, the surfaces 12 of the protective layer 2 and the carrier layer 1 may correspond one-to-one. For example, when the number of the surfaces 12 of the bearing layer 1 provided with the protective layer 2 is two, the two surfaces 12 may be a display surface 121 and an opposite surface 122 opposite to the display surface 121, respectively. Here, the display surface 121 may refer to a surface including a display area.
The protective layer 2 can support and protect the carrier layer 1. For example, when the carrier layer 1 is a fully flexible display layer, all areas of the carrier layer 1 may be bent. In such a case, the protective layer 2 may support the carrier layer 1 so as to maintain the stiffness of the carrier layer 1. In addition, the protective layer 2 can also buffer external force acting on the bearing layer 1 so as to reduce the damage degree of the external force to the bearing layer 1.
The protective layer 2 may comprise a receiving space 21 which may be a closed chamber with the protrusions 22 arranged inside the chamber. When the protrusions 22 are provided on the outer surface of the protective layer 2, the outer surface provided with the protrusions 22 may assume a non-flat state, thereby being disadvantageous in protecting the protrusions 22 and also being disadvantageous in maintaining the flatness of the protective layer 2. However, when the projection 22 is disposed in the accommodation space 21 of the protective layer 2, the projection 22 is not exposed to the outside, thereby achieving protection of the projection 22. Furthermore, when the housing space 21 is in the closed state, there is no uneven area on the outer surface of the protective layer 2, thereby ensuring flatness of the protective layer 2.
The number of the projections 22 provided in the accommodating space 21 may be one or more. As shown in fig. 2a or 2b, when the number of the protrusions 22 is plural, the accommodating cavity 212 may be disposed between two adjacent protrusions 22, so that the plurality of protrusions 22 may take a state of alternating convex and concave. When one projection 22 has no adjacent other projection 22, or one projection 22 has only one adjacent other projection 22, there may be a receiving cavity 212 between the projection 22 and the side surface of the receiving space 21.
The receiving space 21 may include a bottom surface 211, a cover layer 213 opposite to the bottom surface 211, and a side surface disposed between the cover layer 213 and the bottom surface 211. Here, the bottom surface 211 is closest to the carrier layer 1, and thus, the bottom surface 211 of the accommodating space 21 is defined to be close to the carrier layer 1. That is, the bottom surface 211 of the accommodating space 21 is disposed opposite to the display surface 121 of the support layer 1.
Also, in one embodiment of the present application, the protective layer 2 may have elasticity so that the protective layer 2 may be bent. Specifically, since the at least one protrusion 22 is disposed at a position corresponding to the bending region 11, the at least one protrusion 22 in the accommodating space 21 may be bent along with the bending of the bending region 11. For example, the receiving cavities 212 on opposite sides of the protrusion 22 may be reduced when the display panel is bent towards the display surface 121, as shown in fig. 2a below. The receiving cavities 212 at opposite sides of the protrusion 22 may be enlarged when the display panel is bent toward the opposite surface 122, as shown in fig. 2b below.
For convenience of description, the protective layer 2 not provided with the protrusions 22 may be referred to as an original protective layer. For the original protection layer, since the protrusions 22 are not provided, when bending toward the side where the original protection layer is provided, the side of the original protection layer far from the carrier layer 1 is squeezed, and the squeezing pulls the side of the original protection layer close to the carrier layer 1, so that the side of the original protection layer close to the carrier layer 1 is stretched, and the carrier layer 1 is stretched. That is, for the original protective layer, the carrier layer 1 starts to be stretched in the initial stage of the bending. When the bending reaches a maximum, the load bearing layer 1 is stretched to a maximum extent.
However, with the protective layer 2 provided in the embodiment of the present application, since the protrusions 22 are provided, when bending toward the side where the protective layer 2 is provided, the protrusions 22 may not be pressed before two adjacent protrusions 22 contact, or before the protrusions 22 contact the side surface of the accommodating space 21, so that the side of the protective layer 2 close to the bearing layer 1 may not be stretched, or the degree of stretching is low. Accordingly, since the carrier layer 1 is not pulled by the protective layer 2, or the carrier layer 1 is pulled by the protective layer 2 to a low degree, the carrier layer 1 is stretched to a low degree. That is to say, under the same bending degree, the degree of the carrier layer 1 stretched by the protective layer 2 is much smaller than the degree of the carrier layer 1 stretched by the original protective layer, so that the bending stress of the display panel is effectively reduced, and the damage to the inside of the carrier layer 1 is effectively reduced.
The display panel that the embodiment of this application provided is through setting up at least one arch 22 on protective layer 2 to effectively reduced the tensile deformation that bearing layer 1 is drawn and lead to by protective layer 2, and then effectively reduced display panel's bending stress, effectively reduced the damage of the inside of bearing layer 1. Further, by disposing at least one projection 22 in the accommodation space 21, exposure of the projection 22 is avoided, and flatness of the protective layer 2 is maintained.
In one embodiment of the present application, the buffer does not completely fill the containment cavity 212.
In another embodiment of the present application, the display panel may include a buffer liquid filling the receiving space 21.
Specifically, the accommodation space 21 of the protective layer 2 may be filled with a buffer liquid except for the space occupied by the protrusions 22. Here, the buffer solution is provided to maintain the flatness of the protective layer 2. That is, in the case where the capping layer 213 of the protective layer 2 is liable to be dented, the buffer solution is provided so as to place the dent of the capping layer 213 of the protective layer 2.
In addition, the setting of the buffer solution can also reduce the bending rate of the display panel. That is to say, in the process of bending the display panel, the buffer solution can play a certain role in buffering the bending of the protection layer 2, so as to avoid the influence of stress concentration generated by sudden bending on the carrier layer 1.
Fig. 3 is a schematic structural diagram of a bending region 11 of a display panel according to another embodiment of the present application.
In one embodiment of the present application, as shown in fig. 3, the adjacent receiving cavities 212 communicate through a penetration hole 221 penetrating the protrusion 22.
In other words, the receiving cavity 212 may be disposed between two adjacent protrusions 22 of the at least one protrusion 22. The boss 22 may include a penetration hole 221, and the penetration hole 221 may penetrate the two receiving cavities 212 located at opposite sides of the boss 22.
Specifically, when the buffer solution does not flow easily in the accommodating space 21, the buffer solution will hinder the bending of the protective layer 2. To avoid this, a through-hole 221 may be provided on the protrusion 22 to facilitate the flow of the buffer fluid between the receiving chambers 212. In order to ensure the flow of the buffer liquid and the bending of the protective layer 2, the protective layer 2 may have elasticity. That is, in one embodiment of the present application, the protrusions 22 are made of an elastic material.
In one embodiment of the present application, as shown in fig. 3, the extending direction of the through hole 221 is parallel to the plane of the bending region 11, and the through hole is parallel to the plane of the bending region to increase the bending stress of the bending region.
In one embodiment of the present application, as shown in fig. 3, the distance of the through hole 221 on each protrusion 22 is equal to the distance of the plane where the bending region 11 is located, so that when the distance of the through hole is equal to the distance of the plane where the bending region is located, the buffer solution can flow in each accommodating cavity conveniently, and the bending stress generated during bending is reduced.
In one embodiment of the present application, as shown in fig. 3, the extending directions of the through holes 221 of the respective protrusions 22 are parallel.
In one embodiment of the present application, as shown in fig. 3, the receiving space 21 may further include a cover layer 213 opposite to the bottom surface 211, and the at least one protrusion 22 is fixedly connected to the cover layer 213.
Specifically, in order to maintain the stiffness of the protective layer 2, the size of the protrusions 22 may be the same as the thickness of the protective layer 2 in the thickness direction of the protective layer 2. In this case, by providing the protrusions 22 in fixed connection with the cover layer 213, the position of the cover layer 213 can be maintained stable, and the dent of the cover layer 213 can be avoided, thereby maintaining the flatness of the protective layer 2.
In one embodiment of the present application, as shown in fig. 3, the cross-section of the protrusion 22 is trapezoidal in a direction perpendicular to the plane of the bending region 11, and the long base of the trapezoid is located on the bending region 11.
In one embodiment of the present application, as shown in fig. 3, the cross-section of the receiving cavity 212 is triangular along a direction perpendicular to the plane of the bending region 11.
In other words, the protrusion 22 may include a first surface 222 and a second surface 223 that are oppositely disposed. Here, the first surface 222 is fixedly connected to the bottom surface 211 of the accommodating space 21, and the area of the first surface 222 is larger than that of the second surface 223.
In particular, on the bottom surface 211 of the accommodation space 21, the roots of the projections 22 may be connected to each other, thereby ensuring the supporting effect of the projections 22 on the carrier layer 1. In this case, in order to ensure the existence of the receiving cavity 212 between the adjacent two protrusions 22, the area of the first surface 222 may be larger than that of the second surface 223. That is, as shown in fig. 3, the receiving cavity 212 may be in the form of a pointed indentation.
In one embodiment of the present application, as shown in fig. 3, the area of the orthographic projection of the at least one protrusion 22 on the carrier layer 1 may be smaller than the area of the orthographic projection of the accommodation space 21 on the carrier layer 1.
Specifically, a certain margin may exist between the protrusion 22 close to the side surface of the accommodating space 21 and the side surface of the accommodating space 21, so that when the elastic protective layer 2 is bent, the buffer solution in the accommodating space 21 may press the margin to expand, thereby preventing the buffer solution from blocking the contact of the two adjacent protrusions 22.
In one embodiment of the present application, the surface 12 of the carrier layer 1 may comprise a display surface 121. One protective layer 2 of the at least one protective layer 2 may be disposed on the display surface 121.
Specifically, the protective layer 2 may be provided on the display surface 121. In such a case, in order to avoid the influence of the protective layer 2 on the display effect, an optical material or a light-transmitting material may be used for the protective layer 2. In addition, the accommodating space 21 of the protective layer 2 disposed on the display surface 121 may be filled with a buffer solution, and the refractive index of the buffer solution may be the same as that of the protective layer 2, thereby avoiding the influence of the accommodating cavity 212 in the accommodating space 21 on the display effect of the display area. That is, in one embodiment of the present application, the buffer has the same refractive index as the protrusions 22.
In another embodiment of the present application, the surface 12 of the carrier layer 1 may comprise an opposite surface 122 opposite the display surface 121, and one of the at least one protective layers 2 may be disposed at the opposite surface 122. That is, the protective layer 2 may not be provided on the display surface 121. In such a case, the influence of the protective layer 2 on the display may not need to be considered. That is, the material used for the protective layer 2 may not necessarily be limited to an optical material or a light-transmitting material.
Fig. 4 is a schematic structural diagram of a bending region 11 of a display panel according to another embodiment of the present application.
In one embodiment of the present application, as shown in fig. 4, the display surface 121 and the opposite surface 122 of the carrier layer 1 may both be provided with the protective layer 2.
Specifically, when the display panel is bent, the receiving cavity 212 of the protective layer 2, which is pulled, will be compressed, and the receiving cavity 212 of the protective layer 2, which is pressed, will be stretched. For the stretched protective layer 2, the through-holes 221 in the protrusions 22 will be elongated by the pulling force. Accordingly, in the thickness direction of the carrier layer 1, the size of the protrusions 22 will be reduced, thereby reducing the thickness of the stretched protective layer 2, and thus reducing the total thickness of the carrier layer 1 and the protective layer 2 when bent.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modifications, equivalents and the like that are within the spirit and principle of the present application should be included in the scope of the present application.
Claims (10)
1. A display panel, comprising:
a bending zone;
the protective layer comprises a plurality of bulges arranged at intervals in the bending area, accommodating cavities formed between the adjacent bulges and a covering layer which covers the bulges and seals the accommodating cavities;
and a buffer solution filled in the accommodating cavity.
2. The display panel of claim 1, wherein the buffer does not completely fill the receiving cavity.
3. The display panel according to claim 1, wherein adjacent receiving cavities communicate through a through-hole penetrating the protrusion.
4. The display panel according to claim 3, wherein the extending direction of the through hole is parallel to the plane of the bending region.
5. The display panel according to claim 4, wherein the distance of the through holes on each protrusion is equal to the distance of the plane where the bending region is located.
6. The display panel according to claim 3, wherein the through holes in the protrusions extend in parallel.
7. The display panel according to claim 1, wherein the cross section of the protrusion is trapezoidal in a direction perpendicular to the plane of the bending region, and a long bottom of the trapezoid is located on the bending region.
8. The display panel according to claim 7, wherein the receiving cavity has a triangular cross section along a direction perpendicular to a plane of the bending region.
9. The display panel according to claim 1, wherein the buffer has the same refractive index as the protrusions.
10. The display panel according to claim 1, wherein the protrusion is made of an elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020038177.1U CN210722214U (en) | 2020-01-08 | 2020-01-08 | Display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020038177.1U CN210722214U (en) | 2020-01-08 | 2020-01-08 | Display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210722214U true CN210722214U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020038177.1U Active CN210722214U (en) | 2020-01-08 | 2020-01-08 | Display panel |
Country Status (1)
| Country | Link |
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| CN (1) | CN210722214U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112038500A (en) * | 2020-08-27 | 2020-12-04 | 武汉华星光电半导体显示技术有限公司 | Display module |
| CN112150928A (en) * | 2020-09-25 | 2020-12-29 | 合肥维信诺科技有限公司 | Flexible cover plate, manufacturing method thereof and display device |
| CN114155790A (en) * | 2021-11-30 | 2022-03-08 | 联想(北京)有限公司 | Connecting piece and sub-assembly |
| CN114333616A (en) * | 2021-11-15 | 2022-04-12 | 合肥维信诺科技有限公司 | Display panel, laminating device and preparation method of display panel |
-
2020
- 2020-01-08 CN CN202020038177.1U patent/CN210722214U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112038500A (en) * | 2020-08-27 | 2020-12-04 | 武汉华星光电半导体显示技术有限公司 | Display module |
| CN112038500B (en) * | 2020-08-27 | 2021-12-28 | 武汉华星光电半导体显示技术有限公司 | Display module |
| US11877470B2 (en) | 2020-08-27 | 2024-01-16 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display module including fluid material filled accamodation space |
| CN112150928A (en) * | 2020-09-25 | 2020-12-29 | 合肥维信诺科技有限公司 | Flexible cover plate, manufacturing method thereof and display device |
| CN112150928B (en) * | 2020-09-25 | 2022-07-12 | 合肥维信诺科技有限公司 | Flexible cover plate, manufacturing method thereof and display device |
| CN114333616A (en) * | 2021-11-15 | 2022-04-12 | 合肥维信诺科技有限公司 | Display panel, laminating device and preparation method of display panel |
| CN114333616B (en) * | 2021-11-15 | 2023-11-10 | 合肥维信诺科技有限公司 | Display panel, pressing device and preparation method of display panel |
| CN114155790A (en) * | 2021-11-30 | 2022-03-08 | 联想(北京)有限公司 | Connecting piece and sub-assembly |
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