CN108878482B - Display panel and electronic device - Google Patents
Display panel and electronic device Download PDFInfo
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- CN108878482B CN108878482B CN201810654046.3A CN201810654046A CN108878482B CN 108878482 B CN108878482 B CN 108878482B CN 201810654046 A CN201810654046 A CN 201810654046A CN 108878482 B CN108878482 B CN 108878482B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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Abstract
The invention provides a display panel and an electronic device, wherein the display panel comprises: the display panel comprises a plurality of metal wires, wherein the metal wires extend from a flat area to a bent area of the display panel, the metal wires comprise a plurality of main metal wires located in the bent area and a plurality of auxiliary metal wires located in the flat area, and the minimum width of the main metal wires is larger than that of the auxiliary metal wires. The display panel and the electronic device can prevent the metal wires from being broken in the bending process.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to the field of display technologies, and in particular, to a display panel and an electronic device.
[ background of the invention ]
In the conventional narrow-bezel display panel, a bending region is usually bent to connect metal traces of the bending region with a driving chip on the back of the display panel.
Taking a flexible Organic Light Emitting Diode (OLED) panel as an example, the flexible OLED panel bends part of metal wires in a non-display area of a screen to the back of the screen by using the characteristic of the flexible OLED at the lower frame of the screen and using a Pad Bending (Pad Bending) technology, thereby effectively reducing the frame of the screen. The pad bending can be made on the upper frame of the screen, also can be made on the lower frame, even on the left and right frames. However, the conventional narrow bezel display panel is prone to break the metal traces during the bending process.
Therefore, it is desirable to provide a display panel and an electronic device to solve the problems of the prior art.
[ summary of the invention ]
The invention aims to provide a display panel and an electronic device, which can prevent metal wires from being broken in a bending process.
To solve the above technical problem, the present invention provides a display panel, which includes:
the display panel comprises a plurality of metal wires, wherein the metal wires extend from a flat area to a bent area of the display panel, the metal wires comprise a plurality of main metal wires located in the bent area and a plurality of auxiliary metal wires located in the flat area, and the minimum width of the main metal wires is larger than that of the auxiliary metal wires.
In the display panel of the invention, the display panel further includes a connection region, the connection region is located between the bending region and the leveling region, a plurality of via holes are arranged in the connection region, the plurality of via holes in the connection region correspond to the plurality of main metal wires, and the main metal wires are electrically connected with the auxiliary metal wires through the corresponding via holes.
In the display panel of the invention, the connecting line of the via holes is bent.
In the display panel of the invention, two adjacent via holes are arranged in a staggered manner.
In the display panel of the invention, the plurality of via holes are arranged in a staggered manner.
In the display panel of the invention, a plurality of the via holes are arranged side by side.
In the display panel of the present invention, at least one buffer portion is provided on the main metal wiring.
In the display panel of the present invention, the buffer portion is a groove filled with an organic material.
In the display panel of the invention, the buffer part comprises at least two grooves filled with organic materials and at least one buffer hole, and the buffer hole is positioned between two adjacent grooves filled with organic materials.
In the display panel of the invention, the metal traces include a first metal trace and a second metal trace, and the width of the sub-metal trace of the first metal trace is greater than or equal to the width of the sub-metal trace of the second metal trace.
In the display panel of the invention, the minimum width of the main metal trace of the first metal trace is greater than or equal to the minimum width of the main metal trace of the second metal trace.
The invention also provides an electronic device which comprises the display panel.
According to the display panel and the electronic device, the width of the metal wire in the bending area is larger than that of the metal wire in the non-bending area, so that the metal wire in the bending area can better release stress in the bending process, and the metal wire is prevented from being broken in the bending process.
[ description of the drawings ]
FIG. 1 is a schematic structural diagram of a curved display panel according to the present invention;
FIG. 2 is a first top view of a flat display panel according to the present invention;
FIG. 3 is an enlarged schematic view of the main metal trace in FIG. 2;
FIG. 4 is a second top view of a portion of a display panel according to the present invention;
FIG. 5 is a schematic view of a first structure of a portion of a main metal trace according to the present invention;
fig. 6 is a schematic view of a second structure of a portion of a main metal trace according to the present invention.
[ detailed description ] embodiments
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc. refer to directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
Referring to fig. 1 to 6, fig. 1 is a schematic structural diagram of a curved display panel according to the present invention.
The display panel of the present invention may be curved or planar. As shown in fig. 1 and 2, the curved display panel of the present invention includes a bending region 101 and flat regions 102 located at two ends of the bending region 101, that is, the bending region 101 is located between two flat regions 102, that is, a non-bending region, the two flat regions 102 are a display region and a non-display region, respectively, and the other end of the non-display region is connected to the flexible circuit board. As shown in fig. 2, the display panel of the present invention includes a plurality of metal traces 200, where the metal traces 200 extend from a flat region 102 to a bending region 103 of the display panel, the plurality of metal traces 200 include a plurality of main metal traces 20 located in the bending region 101 and a plurality of sub metal traces 10 located in the flat region 102, and a minimum width of the main metal traces 20 is greater than a width of the sub metal traces 10.
Specifically, the display area includes a flexible substrate 111, a switch array layer 112, an OLED display layer 113, and an encapsulation layer 114. The switch array layer 112 includes a pixel driving circuit composed of a plurality of Thin Film Transistors (TFTs), and the plurality of metal traces 200 transmit power signals, scanning signals, and data signals provided by the driving circuit to the pixel driving circuit. Generally, the switch array layer 112 includes a first metal layer therein, and the sub-metal trace 10 of the metal trace 200 is formed of the metal of the first metal layer. The bending region 101 includes a second metal layer 115 on the flexible substrate 111, and the main metal trace 20 of the metal trace 200 is formed by the metal of the second metal layer 115. I.e. the main metal trace 20 and the sub-metal trace 10 are located at different metal layers. It is understood that there are metal traces formed of metal of the same metal layer in the display panel, such as power signal lines (VDD or VSS) formed of the second metal layer 115, the power signal lines extending from the flat regions to the bent regions.
In one embodiment, the secondary metal trace 10 is linear, the main metal trace 20 is linear or curved, and when the main metal trace 20 is linear, the minimum width of the main metal trace 20 is equal to the width of the linear main metal trace 20. When the main metal trace 20 is a bent type, the minimum width of the main metal trace 20 is equal to the width of the narrowest portion of the bent type main metal trace 20. For example, the metal trace 200 includes a first metal trace 201 and a second metal trace 202. In an embodiment, the first metal trace 201 is a power line, and the second metal line 202 is a data line or an initialization signal line.
The minimum width L3 of the main metal trace 21 of the first metal trace 201 is greater than the width L1 of the sub metal trace 11 of the first metal trace 201. The minimum width L4 of the main metal trace 22 of the second metal trace 202 is greater than the width L2 of the sub metal trace 12 of the second metal trace 202. The width of the sub-metal trace 10 in the connection region 103 is greater than the width of the sub-metal trace 10 in the flat region 102.
In order to further prevent the metal traces from being broken, the width L1 of the sub metal trace 11 of the first metal trace 201 is greater than or equal to the width L2 of the sub metal trace 12 of the second metal trace 202, and the width L3 of the main metal trace 21 of the first metal trace 201 is greater than or equal to the width L4 of the main metal trace 22 of the second metal trace 202.
A hole 23 is provided in each main metal trace 20. The number of the holes on the main metal trace 20 may be one or more, and is not limited herein. The holes on two adjacent main metal traces 20 can be arranged in a staggered manner. For example, the hole 23 on the main metal trace 21 of the first metal trace 201 and the hole 23 on the main metal trace 22 of the second metal trace 202 are arranged in a staggered manner. That is, the positions of the hole on the main metal trace 21 of the first metal trace 201 and the hole 23 on the main metal trace 22 of the second metal trace 202 are not in the same linear dimension.
Referring to fig. 3, each main metal trace 20 has a curved shape or a portion of the main metal trace 20 has a curved shape.
When each of the main metal traces 20 is curved, each of the first metal traces 20 has a convex portion and a concave portion, and the convex portion of one of the two adjacent main metal traces 20 corresponds to the concave portion of the other main metal trace 20. As shown in fig. 3, for example, the main metal trace 21 of the first metal trace 201 has a convex portion 211 and a concave portion 212, and the main metal trace 22 of the second metal trace 202 has a convex portion 221 and a concave portion 222. The positions of the protruding portion 211 of the main metal trace 21 of the first metal trace 201 correspond to the positions of the recessed portion 222 of the main metal trace 22 of the second metal trace 202, and the positions of the recessed portion 212 of the main metal trace 21 of the first metal trace 201 correspond to the positions of the protruding portion 221 of the main metal trace 22 of the second metal trace 202.
Returning to fig. 2, the display panel further includes a connection region 103, and the main metal trace 20 and the sub metal trace 10 are connected to each other at the connection region 103 through a via, so that the bending region 101 is electrically connected to the flat region 102 through the connection region 103. Taking the example that the connection region includes 6 via holes, each of the connection regions 103 is provided with a plurality of via holes 13, the plurality of via holes 13 in the connection region 103 correspond to the plurality of main metal traces 20, that is, each of the via holes 13 corresponds to one main metal trace 20, and the main metal trace 20 is electrically connected to the sub metal trace 10 through the corresponding via hole 13. I.e. the number of vias 13 is equal to the number of primary metal tracks 20 or the number of secondary metal tracks 10.
In an embodiment, the vias 13 in the connection region 103 are arranged side by side. I.e. all vias 13 in each connection region 103 are located in the same row.
In another embodiment, the vias 13 are not arranged side by side, and in an embodiment, a connection line of the vias 13 is bent. For example, as shown in fig. 4, two adjacent vias 13 in the connection region are disposed in a staggered manner. I.e. the positions of two adjacent vias 13 are not in the same linear dimension. For example, the connection line of all the vias 13 is bent, as shown by the dotted line in fig. 4. Referring to fig. 2, two of the plurality of vias 13 in the connection region 103 are a unit, and the vias 13 are arranged in a staggered manner in each unit. Of course, it is understood that the plurality of vias 13 in the connection region 103 may also be three or more than three in one unit, and the vias are arranged in a staggered manner in each unit, and the units are arranged side by side.
For another example, the vias 13 are intermittently arranged in a staggered manner, two vias 13 in the connection region 103 are taken as a unit, the vias 13 are arranged side by side in each unit, the adjacent two units are arranged in a staggered manner, and the units are not in the same linear dimension or some of the units are not in the same linear dimension.
In another embodiment, the vias 13 in the connection region 103 are disposed in a staggered manner. I.e. the positions of all vias 13 are not in the same linear dimension.
In order to better prevent the metal traces from breaking, the main metal trace 20 is provided with a buffer portion. In one embodiment, as shown in fig. 2 or 3, the buffer portion is a plurality of holes 23. In another embodiment, as shown in fig. 5, the buffer portion 31 is a groove 204 filled with an organic material. For example, at least one groove 204 is disposed on the main metal trace 20, and the groove 204 is filled with an organic material to form the buffer portion 31. It is understood that no hole may be provided on the main metal trace 20 at this time. The recess 204 may be a through-hole or non-through-hole structure. In yet another embodiment, the buffer portion 31 includes at least two grooves filled with organic material and at least one buffer hole between two adjacent grooves filled with organic material. As shown in fig. 6, two grooves 204 filled with organic material and a buffer hole 32 are disposed on the main metal trace 20, and the buffer hole 32 is located between two adjacent grooves 204. Of course, it is understood that more than two grooves 204 and two or more than two buffer holes 32 may be disposed on the main metal trace 20. The structure and shape of the buffer hole 32 are the same as those of the hole 23.
Because the width of the metal wire in the bending area is greater than that of the metal wire in the non-bending area, that is, the width of the metal wire in the bending area is increased, so that the metal wire can better release bending stress, and the metal wire is prevented from being broken. In addition, the widths of the wires are different along with different passing ways of the metal wires, and when the width of the metal wires in the bending area is larger than that of the metal wires in the non-bending area, the connection areas of the metal wires in the connection area are approximately equal, so that the difference of contact impedance is reduced.
The invention also provides an electronic device which comprises any one of the display panels.
According to the display panel and the electronic device, the width of the metal wire in the bending area is larger than that of the metal wire in the non-bending area, so that the metal wire in the bending area can better release stress in the bending process, and the metal wire is prevented from being broken in the bending process.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (11)
1. A display panel, comprising:
the display panel comprises a plurality of metal wires, a display panel and a display screen, wherein the metal wires extend from a flat area to a bent area of the display panel, the metal wires comprise a plurality of main metal wires positioned in the bent area and a plurality of auxiliary metal wires positioned in the flat area, and the minimum width of the main metal wires is larger than that of the auxiliary metal wires;
the display panel further comprises a connection area, the connection area is located between the bending area and the leveling area, a plurality of through holes are formed in the connection area, the plurality of through holes in the connection area correspond to the plurality of main metal wires, and the main metal wires are electrically connected with the auxiliary metal wires through the corresponding through holes.
2. The display panel of claim 1, wherein the connection line of the plurality of vias has a bent shape.
3. The display panel according to claim 2,
and the adjacent two via holes are arranged in a staggered manner.
4. The display panel according to claim 1, wherein the plurality of vias are disposed in a staggered manner.
5. The display panel according to claim 1,
the plurality of via holes are arranged side by side.
6. The display panel according to claim 1,
at least one buffer part is arranged on the main metal wiring.
7. The display panel according to claim 6,
the buffer part is a groove filled with organic materials.
8. The display panel according to claim 6,
the buffer part comprises at least two grooves filled with organic materials and at least one buffer hole, and the buffer hole is positioned between two adjacent grooves filled with organic materials.
9. The display panel according to claim 1,
the metal routing comprises a first metal routing and a second metal routing, and the width of the secondary metal routing of the first metal routing is larger than or equal to that of the secondary metal routing of the second metal routing.
10. The display panel according to claim 9,
the minimum width of the main metal wire of the first metal wire is larger than or equal to the minimum width of the main metal wire of the second metal wire.
11. An electronic device, comprising the display panel according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810654046.3A CN108878482B (en) | 2018-06-22 | 2018-06-22 | Display panel and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810654046.3A CN108878482B (en) | 2018-06-22 | 2018-06-22 | Display panel and electronic device |
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| Publication Number | Publication Date |
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| CN108878482A CN108878482A (en) | 2018-11-23 |
| CN108878482B true CN108878482B (en) | 2020-10-16 |
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| CN201810654046.3A Active CN108878482B (en) | 2018-06-22 | 2018-06-22 | Display panel and electronic device |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659337A (en) * | 2018-12-06 | 2019-04-19 | 武汉华星光电半导体显示技术有限公司 | Display panel |
| CN109410765A (en) * | 2018-12-13 | 2019-03-01 | 武汉华星光电技术有限公司 | Display panel and its frame substrate |
| CN109658829A (en) * | 2018-12-18 | 2019-04-19 | 武汉华星光电半导体显示技术有限公司 | Flexible display substrates and organic light-emitting diode (OLED) display apparatus |
| CN109599403B (en) * | 2018-12-19 | 2021-02-26 | 武汉华星光电半导体显示技术有限公司 | Metal routing |
| CN109817680B (en) * | 2019-01-31 | 2021-03-16 | 武汉华星光电半导体显示技术有限公司 | Flexible substrate and display panel |
| CN110010010A (en) * | 2019-04-30 | 2019-07-12 | 昆山工研院新型平板显示技术中心有限公司 | Signal line structure, display panel and display device |
| CN110189636B (en) * | 2019-05-31 | 2021-06-22 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| US11165030B2 (en) | 2019-05-31 | 2021-11-02 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display panel and display device |
| CN110264870B (en) * | 2019-06-13 | 2021-05-07 | 武汉华星光电半导体显示技术有限公司 | Display panel |
| CN110634885B (en) * | 2019-08-20 | 2021-06-22 | 武汉华星光电技术有限公司 | Array substrate and preparation method thereof |
| US20240096900A1 (en) * | 2021-04-29 | 2024-03-21 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Display panel |
| CN113921536B (en) * | 2021-09-30 | 2023-05-09 | 武汉华星光电半导体显示技术有限公司 | Display panel and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102176719B1 (en) * | 2013-10-14 | 2020-11-10 | 삼성디스플레이 주식회사 | Flexible display panel and manufacturing method thereof |
| EP3201964B1 (en) * | 2014-09-29 | 2020-11-18 | LG Display Co., Ltd. | Flexible display device with reduced bend stress wires |
| CN204303813U (en) * | 2014-12-26 | 2015-04-29 | 昆山国显光电有限公司 | Amoled display device |
| CN106205394B (en) * | 2016-09-05 | 2020-05-22 | 京东方科技集团股份有限公司 | Flexible display panel, display device and manufacturing method |
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2018
- 2018-06-22 CN CN201810654046.3A patent/CN108878482B/en active Active
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| 印刷与柔性显示材料与器件技术发展现状与趋势;]史冬梅,杨斌,刘红丽;《科技中国》;20180315;16-18 * |
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