CN115240552A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN115240552A CN115240552A CN202210890466.8A CN202210890466A CN115240552A CN 115240552 A CN115240552 A CN 115240552A CN 202210890466 A CN202210890466 A CN 202210890466A CN 115240552 A CN115240552 A CN 115240552A
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- 239000002184 metal Substances 0.000 claims abstract description 185
- 239000000758 substrate Substances 0.000 claims abstract description 12
- 208000010392 Bone Fractures Diseases 0.000 description 7
- 206010017076 Fracture Diseases 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000009194 climbing Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking 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
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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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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 of a strip structure and is arranged on the substrate; the second metal layer is arranged above the first metal layer, is of a strip structure, and is arranged in a crossed manner with the first metal layer in an overlapping area; a third metal layer passing through the overlap region and disposed above the second metal layer; the first metal layer, the second metal layer and the third metal layer are arranged in an insulating mode; in the overlap region, a projection of the second metal layer on the first metal layer is not coincident with a projection of the third metal layer on 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 condition that multiple layers of metal overlines are overlapped can be avoided, and the problem that undercut or fracture occurs to an insulating layer covered on a metal layer due to the edge angle of the metal layer when the multiple layers of metal layers are overlines can be caused, so that short circuit between different metal layers can occur and the problem that a display screen fails can be caused.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which can solve the technical problem that an insulating layer is broken due to 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 of a strip structure and is arranged on the substrate; the second metal layer is arranged above the first metal layer, is of a strip structure, and is arranged in a crossed manner with the first metal layer in an overlapping area; a third metal layer passing through the overlap region and disposed above the second metal layer; the first metal layer, the second metal layer and the third metal layer are arranged in an insulating mode; in the overlap region, a projection of the second metal layer on the first metal layer is not coincident with a projection of the third metal layer on the first metal layer.
Optionally, in some embodiments of the present application, the third metal layer is disposed in parallel with and overlaps 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 region, the first groove penetrates through the second metal layer from top to bottom, 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 region, the second groove penetrates through the third metal layer from top to bottom, and an opening direction of the second groove faces away from an opening direction of the first groove.
Optionally, in some embodiments of the present application, a first protrusion is disposed on the second metal layer, the first protrusion is correspondingly disposed above the first metal layer, and the first protrusion 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 protrusion is disposed on the third metal layer, the second protrusion is correspondingly disposed above the first metal layer, and the second protrusion 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 present application, the second metal layer or the third metal layer is disconnected 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 side 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 beneficial effects of this application embodiment lie in, a display panel and display device of this application embodiment sets up the recess or cuts off on the metal level that needs the overline, has avoided the stack of multilayer metal level in the overlap region, reduces the thickness of metal layer in the overlap region, has reduced the insulating layer in the overlap region and has appeared fracture or undercut's risk.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic partial structure diagram of a display panel provided in an embodiment of the present application;
fig. 2 is a cross-sectional view in the direction AA in fig. 1.
Fig. 3 is a schematic partial structure diagram 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 provided in an embodiment of the present application.
Description of reference numerals:
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 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. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the application provides a display panel and a display device. The details will be described below.
Examples
The present embodiment is mainly used to explain the display panel and the display device of the invention, wherein the display device includes the display panel 10, and the main technical features and all technical effects of the display device are concentrated on the display panel 10, 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 filter substrate, the first metal layer 200 is disposed on the substrate 100 and used for transmitting a first signal, the first metal layer 200 is a non-transparent metal material, and in order to ensure a 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 region of the display panel 10. In order to reduce the occupation ratio of the non-display region, 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 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, thereby preventing the first metal layer 200, the second metal layer 300, and the third metal layer 400 from being connected with each other to cause a short circuit, which may result in signal crosstalk.
The second metal layer 300 is disposed above the first metal layer 200, and in order to achieve the flatness of the display panel and to maximize the utilization of the space of the non-display region, the second metal layer 300 and the first metal layer 200 are generally disposed in a crossed manner, i.e. the second metal layer 300 needs to cross the first metal layer 200, for convenience of explanation, in this embodiment, the region of the second metal layer 300 crossing the first metal layer 200 is defined as the overlapping region 20. In order to ensure that the first metal layer 200 and the second metal layer 300 are insulated from each other, the insulating layer 500 needs to be disposed between the first metal layer 200 and the second metal layer 300, since the first metal layer 200 has a certain thickness and a slope is formed at the edge of the first metal layer due to etching, the insulating layer 500 needs to span the slope and cover the first metal layer 200, and the higher the slope is, the smaller the slope is, the greater the risk of fracture or undercut of the insulating layer 500 is.
Similarly, in order to ensure the aperture ratio of the display panel 10, the third metal layer 400 is also required to be disposed across the first metal layer 200, and in this embodiment, the third metal layer 400 is disposed in parallel with the second metal layer 300, i.e., the third metal layer 400 also passes through the overlapping region 20 and crosses 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, the insulating layer 500 is also required to be disposed between the third metal layer 400 and the second metal layer 300, and at this time, the insulating layer 500 is required to span the climbing slope of the first metal layer 200 and the climbing slope of the second metal layer 300, so that the risk of the insulating layer 500 being broken or undercut is increased. By analogy, the higher the number of metal layer stacks in the overlap region 20, the greater the risk of cracking or undercutting of the insulating layer 500 provided in the overlap region.
In this embodiment, the thickness of the metal layer in the overlap region 20 is reduced, so as to reduce the risk of the insulating layer breaking or undercutting. Specifically, a first groove 310 is formed in the second metal layer 300, wherein the first groove 310 corresponds to the overlap region 20 and vertically penetrates through the second metal layer 300, and the first groove 310 is a U-shaped groove having a depth of 1/2 to 2/3 of the width of the second metal layer 300. Similarly, a second groove 410 is formed in the third metal layer 400, the second groove 410 penetrates through the third metal layer 400 from top to bottom, the second groove 410 is a U-shaped groove, the depth of the U-shaped 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 of the width, as shown in fig. 2, so that the second metal layer 300 and the third metal layer 400 in the overlap region 20 are not overlapped, the thickness of the metal layers in the overlap region 20 is effectively reduced, and the risk of fracture or undercut of the insulating layer 500 in the overlap region is reduced.
In other preferred embodiments of the present invention, as shown in fig. 3, the thickness of the metal layer in the overlap region 20 can be reduced by cutting off the second metal layer 300 or the third metal layer 400 in the overlap region 20, and likewise, any other means for reducing the thickness of the metal layer in the overlap region is within the scope of the present invention, and the present invention is not limited to the structure in which three metal layers are stacked, and the technical means of the present invention is applicable to any structure in which multiple metal layers (at least two layers) are stacked.
In particular, in order to solve the technical problem of the narrow line width and the increased fracture risk of the second metal layer 300 and the third metal layer 400 caused by the first groove 310 and the second groove 410 being disposed in the overlap region 20, as shown in fig. 4, in another preferred embodiment of the present invention, a first bump 320 is disposed on a side of the second metal layer 300 away from the first groove 310, and a width of the first bump 320 extending out of the second metal layer 300 is consistent with a depth of the first groove 310, so as to compensate the line width of the second metal layer 300, and avoid the fracture of the second metal layer 300 caused by the narrow line width 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, and the width of the second bump 420 extending out of the third metal layer 400 is the same as 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 the third metal layer 400 being broken due to the too narrow line width of the third metal layer 400 in the overlap area 20. Since the opening directions of the first groove 310 and the second groove 410 are opposite, the protruding directions of the first protrusion 320 and the second protrusion 420 are also opposite, so that the overlapping thickness of the second metal layer 300 and the third metal layer 400 is not increased, and the risk of fracture 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 advantages that the grooves or the cuts are formed in the metal layers needing the overlines, so that the superposition of multiple metal layers in the overlapping area is avoided, the thickness of the metal layers in the overlapping area is reduced, and the risk of breakage or undercut of the insulating layers in the overlapping area is reduced.
The display panel and the display device provided by the embodiments of the present application are described in detail above, and the principles and embodiments of the present application are explained herein by applying specific examples, and the description of the embodiments above is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A display panel, comprising
A substrate;
the first metal layer is of a strip structure and is arranged on the substrate;
the second metal layer is arranged above the first metal layer, the second metal layer is of a strip structure, and the second metal layer and the first metal layer are arranged in an overlapping area in a crossed mode;
the third metal layer is of a strip structure, penetrates 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 mode;
in the overlap region, a projection of the second metal layer on the first metal layer is not coincident with a projection of the third metal layer on the first metal layer.
2. The display panel according to claim 1,
the third metal layer and the second metal layer are arranged in parallel and are superposed on the second metal layer.
3. The display panel according to claim 1,
the second metal layer is provided with a first groove in the overlapping area, the first groove penetrates through the second metal layer from top to bottom, and the opening direction of the first groove is parallel to the extending direction of the two ends of the first metal layer.
4. The display panel according to claim 3,
the third metal layer is provided with a second groove in the overlapping area, the second groove penetrates through the third metal layer from top to bottom, and the opening direction of the second groove is back to the opening direction of the first groove.
5. The display panel according to claim 3,
the second metal layer is provided with a first protruding block, the first protruding block is correspondingly arranged above the first metal layer, and the first protruding block is arranged on one side, far away from the first groove, of the second metal layer.
6. The display panel according to claim 4,
the third metal layer is provided with a second bump, the second bump is correspondingly arranged above the first metal layer, and the second bump is arranged on one side, far away from the second groove, of the third metal layer.
7. The display panel according to claim 4,
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.
8. The display panel according to claim 1,
the second metal layer or the third metal layer is disconnected in the overlap region.
9. The display panel according to claim 1, further comprising
And 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.
10. A display device comprising the display panel according to any one of claims 1 to 9.
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 true CN115240552A (en) | 2022-10-25 |
| CN115240552B CN115240552B (en) | 2023-11-28 |
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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 |
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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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|---|---|
| CN115240552B (en) | 2023-11-28 |
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