CN115240552B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN115240552B CN115240552B CN202210890466.8A CN202210890466A CN115240552B CN 115240552 B CN115240552 B CN 115240552B CN 202210890466 A CN202210890466 A CN 202210890466A CN 115240552 B CN115240552 B CN 115240552B
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- 239000002184 metal Substances 0.000 claims abstract description 184
- 239000000758 substrate Substances 0.000 claims abstract description 12
- 230000009194 climbing Effects 0.000 description 5
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the application discloses a display panel and a display device, wherein the display panel comprises a substrate; the first metal layer is in a strip structure and is arranged on the substrate; the second metal layer is arranged above the first metal layer, is of a strip-shaped structure and is crossed with the first metal layer in an overlapping area; a third metal layer passing through the overlap region and disposed over the second metal layer; the first metal layer, the second metal layer and the third metal layer are arranged in an insulating manner; in the overlap region, the projection of the second metal layer onto the first metal layer does not coincide with the projection of the third metal layer onto the first metal layer.
Description
Technical Field
The application relates to the field of display, in particular to a display panel and a display device.
Background
When the existing display screen backboard is designed, the situation that multiple layers of metal overlines are overlapped is unavoidable, and when multiple layers of metal layers overlines are arranged, the problem that an insulating layer covered on the metal layers is undercut or broken is caused due to the edge angle of the metal layers, so that the problem that different metal layers are short-circuited and the display screen is invalid is solved.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which can solve the technical problem of insulating layer fracture caused by overlapping of metal layers in the prior art.
The embodiment of the application provides a display panel, which comprises a substrate; the first metal layer is in a strip structure and is arranged on the substrate; the second metal layer is arranged above the first metal layer, is of a strip-shaped structure and is crossed with the first metal layer in an overlapping area; a third metal layer passing through the overlap region and disposed over the second metal layer; the first metal layer, the second metal layer and the third metal layer are arranged in an insulating manner; in the overlap region, the projection of the second metal layer onto the first metal layer does not coincide with the projection of the third metal layer onto the first metal layer.
Optionally, in some embodiments of the present application, the third metal layer is disposed parallel to and superimposed on the second metal layer.
Optionally, in some embodiments of the present application, the second metal layer is provided with a first groove in the overlapping area, the first groove penetrates the second metal layer up and down, and an opening direction of the first groove is parallel to an extending direction of two ends of the first metal layer.
Optionally, in some embodiments of the present application, the third metal layer is provided with a second groove in the overlapping area, the second groove penetrates the third metal layer up and down, and an opening direction of the second groove is opposite to an opening direction of the first groove.
Optionally, in some embodiments of the present application, a first bump is disposed on the second metal layer, the first bump is correspondingly disposed above the first metal layer, and the first bump is disposed on a side of the second metal layer away from the first groove.
Optionally, in some embodiments of the present application, a second bump is disposed on the third metal layer, where the second bump is disposed above the first metal layer correspondingly, and the second bump is disposed on a side of the third metal layer away from the second groove.
Optionally, in some embodiments of the present application, a projection of the first groove on the first metal layer coincides with a projection of the second groove on the first metal layer.
Optionally, in some embodiments of the application, the second metal layer or the third metal layer is broken in the overlap region.
Optionally, in some embodiments of the present application, the display panel further includes an insulating layer disposed between the first metal layer and the second metal layer, between the second metal layer and the third metal layer, and on a surface of the third metal layer away from the second metal layer.
Correspondingly, the embodiment of the application also provides a display device which comprises the display panel.
The display panel and the display device have the advantages that grooves are formed or cut off on the metal layers needing line crossing, overlapping of multiple layers of metal layers in an overlapping area is avoided, thickness of the metal layers in the overlapping area is reduced, and risk of breakage or undercut of the insulating layers in the overlapping area is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a partial structure of a display panel according to an embodiment of the present application;
fig. 2 is a cross-sectional view taken along direction AA in fig. 1.
FIG. 3 is a schematic view showing a partial structure of a display panel according to another preferred embodiment of the present application;
fig. 4 is a schematic structural diagram of a first bump and a second bump according to an embodiment of the present application.
Reference numerals illustrate:
a display panel 10; a substrate 100;
a first metal layer 200; a second metal layer 300;
a third metal layer 400; an insulating layer 500;
a first groove 310; a second groove 410;
a first bump 320; and a second bump 420.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the application. In the present application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
The embodiment of the application provides a display panel and a display device. The following is a detailed description.
Examples
The present embodiment is mainly used for explaining the display panel and the display device of the present application, wherein the display device includes the display panel 10, and the main technical features and all technical effects of the display device are collectively provided on the display panel 10, and as shown in fig. 1, the display panel 10 includes a substrate 100, a first metal layer 200, a second metal layer 300, and a third metal layer 400.
The substrate 100 is an array substrate or a color film substrate, the first metal layer 200 is disposed on the substrate 100 for transmitting a first signal, the first metal layer 200 is made of a non-transparent metal material, and in order to ensure the display effect of the display panel 10, the first metal layer 200, the second metal layer 300 and the third metal layer 400 are all required to be disposed in a non-display area of the display panel 10. In order to reduce the duty ratio of the non-display area, the first metal layer 200, the second metal layer 300 and the third metal layer 400 are generally arranged in a stacked manner, and an insulating layer 500 is disposed between any two layers of the first metal layer 200, the second metal layer 300 and the third metal layer 400, so that the first metal layer 200, the second metal layer 300 and the third metal layer 400 are insulated from each other, and the first metal layer 200, the second metal layer 300 and the third metal layer 400 are prevented from being connected with each other to generate a short circuit, thereby causing signal crosstalk.
The second metal layer 300 is disposed above the first metal layer 200, and for the purpose of flatness of the display panel and maximizing the space of the non-display area, the second metal layer 300 and the first metal layer 200 are generally disposed to cross each other, i.e. the second metal layer 300 needs to cross the first metal layer 200, and for convenience of explanation, a region of the second metal layer 300 crossing the first metal layer 200 is defined as an overlapping area 20. In order to ensure that the first metal layer 200 and the second metal layer 300 are insulated from each other, an insulating layer 500 needs to be disposed between the first metal layer 200 and the second metal layer 300, and since the first metal layer 200 has a certain thickness and an edge thereof is formed with a climbing due to etching, the insulating layer 500 needs to span the climbing and cover the first metal layer 200, and the higher the climbing, the smaller the gradient, the greater the risk of breakage or undercut of the insulating layer 500.
The third metal layer 400 is disposed above the second metal layer 300, and similarly, in order to ensure the aperture ratio of the display panel 10, the third metal layer 400 needs to be disposed across the first metal layer 200, in this embodiment, the third metal layer 400 and the second metal layer 300 are disposed in parallel up and down, i.e. the third metal layer 400 also passes through the overlap region 20 and spans the first metal layer 200. In order to ensure that the third metal layer 400 and the second metal layer 300 are insulated from each other, it is also necessary to provide an insulating layer 500 between the third metal layer 400 and the second metal layer 300, and at this time, the insulating layer 500 needs to span the climbing of the first metal layer 200 and the climbing of the second metal layer 300, thereby increasing the risk of breakage or undercut of the insulating layer 500. By analogy, the higher the number of metal layers superimposed in the overlap region 20, the greater the risk of cracking or undercut of the insulating layer 500 provided in the overlap region.
In this embodiment, the metal layer thickness of the overlap region 20 is reduced, so that the risk of cracking or undercut of the insulating layer is reduced. Specifically, a first groove 310 is formed on the second metal layer 300, where the first groove 310 corresponds to the overlapping region 20 and penetrates the second metal layer 300 up and down, and the first groove 310 is a U-shaped groove with a depth of 1/2 to 2/3 of the width of the second metal layer 300. Similarly, a second groove 410 is formed on the third metal layer 400, the second groove 410 penetrates the third metal layer 400 vertically, the second groove 410 is a U-shaped groove, the depth of the second groove is 1/2-2/3 of the width of the second metal layer 300, the opening directions of the first groove 310 and the second groove 410 are opposite, that is, the first groove 310 and the second groove 410 are respectively used for reducing the second metal layer 300 and the third metal layer 400 with at least half width, as shown in fig. 2, so that the second metal layer 300 and the third metal layer 400 in the overlapping region 20 are not overlapped, thereby effectively reducing the thickness of the metal layers in the overlapping region 20 and reducing the risk of breakage or undercut of the insulating layer 500 in the overlapping region.
In other preferred embodiments of the present application, as shown in fig. 3, the thickness of the metal layer in the overlapping region 20 can be reduced by cutting the second metal layer 300 or the third metal layer 400 in the overlapping region 20, and, similarly, any other means for reducing the thickness of the metal layer in the overlapping region is within the scope of the present application, and the technical means of the present application are not limited to the structure of stacking three metal layers, and are applicable to any structure of stacking multiple metal layers (at least two layers).
In particular, in order to solve the technical problems of narrowing the line widths of the second metal layer 300 and the third metal layer 400 and increasing the fracture risk caused by providing the first groove 310 and the second groove 410 in the overlap region 20, as shown in fig. 4, in another preferred embodiment of the present application, a first bump 320 is provided on a side of the second metal layer 300 away from the first groove 310, and the width of the first bump 320 extending out of the second metal layer 300 is consistent with the depth of the first groove 310, so as to play a role in compensating the line widths of the second metal layer 300, and avoid the technical problem of fracture of the second metal layer 300 caused by the too narrow line widths of the second metal layer 300 in the overlap region 20. Similarly, a second bump 420 is disposed on a side of the third metal layer 400 away from the second groove 410, where the width of the second bump 420 extending out of the third metal layer 400 is identical to the depth of the second groove 410, so as to compensate the line width of the third metal layer 400, and avoid the technical problem of breakage of the third metal layer 400 caused by too narrow line width of the third metal layer 400 in the overlap region 20. Since the opening directions of the first recess 310 and the second recess 410 are opposite, the protruding directions of the first bump 320 and the second bump 420 are also opposite, so that the thickness of the second metal layer 300 and the third metal layer 400 is not increased, and the risk of breaking or undercut of the insulating layer 500 disposed on the second metal layer 300 or the third metal layer 400 is not increased.
The display panel and the display device have the beneficial effects that grooves are formed or cut off on the metal layers needing line crossing, overlapping of multiple layers of metal layers in an overlapping area is avoided, thickness of the metal layers in the overlapping area is reduced, and risk of breakage or undercut of the insulating layers in the overlapping area is reduced.
The foregoing has described in detail a display panel and a display device according to embodiments of the present application, and specific examples have been applied to illustrate the principles and embodiments of the present application, and the above description of the embodiments is only for aiding in understanding the method and core idea of the present application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.
Claims (8)
1. A display panel, comprising
A substrate;
the first metal layer is in a strip structure and is arranged on the substrate;
the second metal layer is arranged above the first metal layer, is of a strip-shaped structure and is crossed with the first metal layer in an overlapping area;
the third metal layer is in a strip-shaped structure, passes through the overlapping area and is arranged above the second metal layer;
the first metal layer, the second metal layer and the third metal layer are arranged in an insulating manner;
in the overlap region, the projection of the second metal layer onto the first metal layer does not coincide with the projection of the third metal layer onto the first metal layer;
the second metal layer is provided with a first groove in the overlapping area, the first groove penetrates through the second metal layer up and down, and the opening direction of the first groove is parallel to the extending direction of the two ends of the first metal layer; the third metal layer is provided with a second groove in the overlapping area, the second groove penetrates through the third metal layer up and down, and the opening direction of the second groove is opposite to the opening direction of the first groove.
2. The display panel of claim 1, wherein the display panel comprises,
the third metal layer is arranged in parallel with the second metal layer and is overlapped on the second metal layer.
3. The display panel of claim 1, wherein the display panel comprises,
the second metal layer is provided with a first lug, the first lug is correspondingly arranged above the first metal layer, and the first lug is arranged on one side, far away from the first groove, of the second metal layer.
4. The display panel according to claim 3, wherein,
the third metal layer is provided with a second lug, the second lug is correspondingly arranged above the first metal layer, and the second lug is arranged on one side, far away from the second groove, of the third metal layer.
5. The display panel according to claim 3, wherein,
the projection of the first groove on the first metal layer is overlapped with the projection of the second groove on the first metal layer.
6. The display panel of claim 1, wherein the display panel comprises,
the second metal layer or the third metal layer is broken in the overlap region.
7. The display panel of claim 1, further comprising
The insulating layer is arranged between the first metal layer and the second metal layer, between the second metal layer and the third metal layer and on one side surface of the third metal layer far away from the second metal layer.
8. A display device comprising the display panel according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210890466.8A CN115240552B (en) | 2022-07-27 | 2022-07-27 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210890466.8A CN115240552B (en) | 2022-07-27 | 2022-07-27 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115240552A CN115240552A (en) | 2022-10-25 |
| CN115240552B true CN115240552B (en) | 2023-11-28 |
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ID=83675245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210890466.8A Active CN115240552B (en) | 2022-07-27 | 2022-07-27 | Display panel and display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN115240552B (en) |
Citations (6)
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| KR20170081010A (en) * | 2015-12-31 | 2017-07-11 | 엘지디스플레이 주식회사 | Organic light emitting diode display device and method of repairing the same |
| CN107102488A (en) * | 2017-04-25 | 2017-08-29 | 深圳市华星光电技术有限公司 | A kind of fan type wire structure and display panel |
| CN111063257A (en) * | 2019-12-04 | 2020-04-24 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and manufacturing method thereof |
| CN114203731A (en) * | 2021-12-10 | 2022-03-18 | 合肥鑫晟光电科技有限公司 | Array substrate, display panel and display device |
| CN114530460A (en) * | 2022-02-10 | 2022-05-24 | 武汉华星光电半导体显示技术有限公司 | Display substrate, manufacturing method of display substrate and display device |
-
2022
- 2022-07-27 CN CN202210890466.8A patent/CN115240552B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105224140A (en) * | 2015-11-09 | 2016-01-06 | 京东方科技集团股份有限公司 | A kind of array base palte and preparation method thereof, touch display unit |
| KR20170081010A (en) * | 2015-12-31 | 2017-07-11 | 엘지디스플레이 주식회사 | Organic light emitting diode display device and method of repairing the same |
| CN107102488A (en) * | 2017-04-25 | 2017-08-29 | 深圳市华星光电技术有限公司 | A kind of fan type wire structure and display panel |
| CN111063257A (en) * | 2019-12-04 | 2020-04-24 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and manufacturing method thereof |
| CN114203731A (en) * | 2021-12-10 | 2022-03-18 | 合肥鑫晟光电科技有限公司 | Array substrate, display panel and display device |
| CN114530460A (en) * | 2022-02-10 | 2022-05-24 | 武汉华星光电半导体显示技术有限公司 | Display substrate, manufacturing method of display substrate and display device |
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| Publication number | Publication date |
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| CN115240552A (en) | 2022-10-25 |
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