CN110827689B - Display panel and display device - Google Patents
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- CN110827689B CN110827689B CN201911159456.1A CN201911159456A CN110827689B CN 110827689 B CN110827689 B CN 110827689B CN 201911159456 A CN201911159456 A CN 201911159456A CN 110827689 B CN110827689 B CN 110827689B
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- 230000003068 static effect Effects 0.000 claims description 46
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 5
- 229920005591 polysilicon Polymers 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 40
- 239000010410 layer Substances 0.000 description 21
- 238000009825 accumulation Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 14
- 230000005611 electricity Effects 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- HKBLLJHFVVWMTK-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti].[Ti] HKBLLJHFVVWMTK-UHFFFAOYSA-N 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction 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)
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
Abstract
The embodiment of the invention discloses a display panel and a display device. The display panel comprises a plurality of first wires and at least one second wire, wherein the second wires are connected between the at least two first wires, and the impedance of the second wires is larger than 50MΩ and smaller than 1000MΩ. The technical scheme provided by the embodiment of the invention improves the antistatic capability between the wires of the display panel and solves the problem of poor electrostatic protection between the wires of the bending area of the display panel.
Description
Technical Field
The embodiment of the invention relates to the technical field of display panels, in particular to a display panel and a display device.
Background
Along with the development of display technology and the improvement of living standard of people, the requirement on the display effect of the display panel is also higher and higher.
However, in order to realize that the binding area is arranged on the back of the display panel by the narrow frame of the conventional display panel, a bending area of the display panel is formed, electrostatic discharge (ESD) defects exist between the wires of the bending area, the display effect of the display panel is affected, common ESD defects include electrolyte breakdown, line fusing and the like, and due to limited layout space of a screen body, the problem of insufficient ESD protection capability between the wires of the display panel exists, and the problem of the ESD defects between the wires of the bending area of the display panel is solved.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which are used for solving the problem of poor ESD (electro-static discharge) existing between wires of a bending area of the display panel.
In order to realize the technical problems, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a display panel, including:
a plurality of first wires and at least one second wire;
a second wiring is connected between the at least two first wirings; the impedance of the second wire is greater than 50MΩ and less than 1000MΩ.
Further, two adjacent first wires are connected through a second wire.
Further, two adjacent first wires are connected through a plurality of second wires, and the plurality of second wires connected between the adjacent first wires are distributed in a scattered manner.
Further, the second wire and the first wire connected with the second wire are connected together to form a loop around the display area.
Further, the display panel is provided with a display area and a non-display area, the non-display area further comprises a bending area, and the first wiring and the second wiring comprise bending wirings positioned in the bending area.
Further, every two adjacent first wires are connected through a second wire.
Further, two first wirings connected with the same second wiring are arranged on the same layer or different layers.
Further, the second wire and the first wire connected with the second wire are connected together to form a loop.
Further, the second wire is arranged in different layers from the two first wires connected with the second wire, and the second wire is connected with the two first wires connected with the second wire through the through hole.
Further, the second trace is a polysilicon trace.
In a second aspect, an embodiment of the present invention further provides a display apparatus, including a display panel set forth in any of the first aspects.
The display panel provided by the embodiment of the invention comprises a plurality of first wires and at least one second wire, wherein the second wire is connected between the at least two first wires, and the impedance of the second wire is more than 50MΩ and less than 1000MΩ. The technical scheme provided by the embodiment of the invention improves the antistatic capability between the wires of the display panel and solves the problem of poor electrostatic protection between the wires of the bending area of the display panel.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a display panel according to another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a display panel along A-A direction according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a cross section of a display panel according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
As mentioned in the background art, the inventor finds that in the existing organic light-emitting flexible display product, such as a flexible display panel or a flexible wearable screen, there is static charge accumulation between adjacent wires during the manufacturing and use of the display panel, and a great amount of static charge accumulation may generate static discharge between the wires, especially in a bending region of the display panel, where the bending region includes, for example, a bending region between a display region of the display panel and a binding region of a non-light-emitting surface of a screen body, because the wires of the bending region of the display panel are dense or because the wires of the bending region easily generate a great amount of static charges on the bending wires during bending, the accumulation of the great amount of static charges may generate static discharge, resulting in a short circuit or burning of the wires of the bending region, which affects the display effect.
Based on the above technical problems, the present embodiment proposes the following solutions:
fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention. Referring to fig. 1, a display panel 100 provided in an embodiment of the present invention includes a plurality of first wires 1 and at least one second wire 2, wherein the second wire 2 is connected between the at least two first wires 1, and an impedance of the second wire 2 is greater than 50mΩ and less than 1000mΩ.
Specifically, referring to fig. 1, the plurality of first wires 1 may be located in the display area 10 or the non-display area 20 of the display panel, the plurality of first wires 1 may be signal wires, clock wires, or scan wires of the display panel 100, the plurality of first wires 1 may be metal wires, and under normal operation of the display panel 100, the plurality of first wires 1 transmit signals independently from each other, and the impedance of the second wire 2 is greater than 50mΩ, so that even if the second wire 2 is connected between at least two first wires 1, the plurality of first wires 1 can transmit signals independently from each other under normal operation of the display panel 100. The impedance of the second wires 2 is smaller than 1000mΩ, so that when static charges accumulate, the static charges can reach the breakdown voltage of the second wires 2, the accumulated static charges can be transmitted from one first wire 1 to the other first wire 1 connected by the second wires 2 through the second wires 2, the accumulated static charges are led into more first wires 1, equipotential connection among the plurality of first wires 1 connected by the second wires 2 is realized, short circuit or burning loss caused by local static charge accumulation is reduced, the antistatic capacity of the first wires 1 of the display panel 100 is improved, and the display effect of the display panel 100 is ensured.
The display panel provided by the embodiment of the invention comprises a plurality of first wires and at least one second wire, wherein the second wire is connected between the at least two first wires, and the impedance of the second wire is more than 50MΩ and less than 1000MΩ. The technical scheme provided by the embodiment of the invention improves the antistatic capability between the wires of the display panel and solves the problem of poor electrostatic protection between the wires of the bending area of the display panel.
Optionally, the impedance of the second trace 2 is preferably greater than 100mΩ and less than 200mΩ, when the impedance of the second trace 2 is greater than 100mΩ and less than 200mΩ, the second trace 2 can ensure that the signal between the first traces 1 is independently transmitted, and simultaneously, the second trace 2 more easily guides the accumulated electrostatic charges into the first traces 1, so as to realize equipotential connection between the plurality of first traces 1 connected by the second trace 2, reduce short circuit or burn-out phenomena caused by local electrostatic charge accumulation, and further improve the antistatic capability of the first trace 1 of the display panel 100. Optionally, fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention. Referring to fig. 2, two adjacent first wires 1 are connected by a second wire 2.
Specifically, the two adjacent first wires 1 are connected through a second wire 2, that is, the two adjacent first wires 1 are connected through the same second wire 2, that is, the second wire 2 is a continuous wire, and the second wire 2 is connected with the two adjacent first wires 1; or every two adjacent first wires 1 are connected through second wires 2 which are different from each other, namely the second wires 2 are a plurality of interval wires; or part of adjacent first wires 1 are connected through a continuous second wire 2, and every two adjacent first wires 1 in the rest of first wires 1 are respectively connected through second wires 2 which are mutually spaced. As long as two adjacent first wires 1 are connected through a second wire 2, a large equipotential body can be formed by connecting different first wires 1 through the second wire 2, and the antistatic capacity of the first wires 1 is comprehensively improved.
Optionally, with continued reference to fig. 2, every two adjacent first wires are connected by a second wire.
Specifically, through all setting up a second between every two adjacent first wires 1 and walk 2 to connect, realize that the second between two adjacent first wires 1 walks 2 is shorter, save the material of second and walk 2, and connect through the second between different first wires 1 and form a big equipotential body, increase the circulation route of the static electric charge of first electrically conductive route, be favorable to dispersing static electric charge to adjacent and non-adjacent first wires 1, promote the antistatic ability of first wire 1.
Optionally, fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention. Referring to fig. 3, two adjacent first wires 1 are connected by a plurality of second wires 2, and the plurality of second wires 2 connected between the adjacent first wires 1 are distributed in a dispersed manner.
Specifically, two adjacent first wires 1 are connected through a plurality of second wires 2, so as to provide a plurality of paths for static charges, when the first wires 1 are longer in wire, the distances between the first wires 1 at different positions and the adjacent first wires 1 may be different, that is, the densities of the first wires 1 are different, for example, when the first wires 1 located in the display area extend to the bending area, the bending wires located in the bending area are used as the first wires 1, the first wires 1 located in the bending area are denser than the first wires 1 located in the display area, when the first wires 1 located in the bending area have static accumulation, and after static accumulation reaches a certain extent, the accumulated static charges can be taken as paths along the second wires 2 closest to the static accumulation position in the bending area, so that the static accumulation can be dispersed to the first wires 1 in the adjacent bending area; when the first wires 1 in the display area have static accumulation and static accumulation reaches a certain degree, the accumulated static charge can be distributed on the adjacent first wires 1 in the display area along the second wires 2 closest to the static accumulation position in the display area, the static accumulation is not required to be distributed on the adjacent first wires 1 in the bending area through the second wires 2 in the bending area, the static accumulation at different positions of the first wires 1 can be connected to the adjacent first wires 1 through the second wires 2 in a shorter way, and the plurality of second wires 2 connected between the adjacent first wires 1 are distributed, so that the adjacent two first wires 1 are connected through the plurality of distributed paths, and when the static accumulation occurs at different positions on the first wires 1, the static charge is distributed through the plurality of distributed paths, and the charge on each second wire 2 is reduced. The first wires 1 are connected with each other through the second wires 2, and the second wires 2 are distributed and arranged between the first wires 1, so that the first wires 1 and the second wires 2 form an equipotential surface in a net arrangement, the antistatic capacity of the first wires 1 is further improved, and the static protection capacity of the display panel 100 is improved.
Optionally, fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention. On the basis of the above embodiment, referring to fig. 4, the display panel 100 has a display area 10 and a non-display area 20, the non-display area 20 further includes a inflection area 21, and the first trace 1 and the second trace 2 may include inflection traces located in the inflection area 21.
Specifically, the non-light-emitting surface of the display panel 100 is provided with a binding area, the bending area 21 of the non-display area 20 is located between the display area 10 and the binding area, the bending area 21 may be located at a lower frame of the display device, the bending area 21 includes a bending trace, the bending trace extends from the lower frame of the light-emitting surface of the display panel 100 to the binding area disposed on the non-light-emitting surface of the display panel 100, the first trace 1 may include bending traces, each first trace 1 is connected through a second trace 2, the second trace 2 is located at the bending area 21, and the second trace 2 includes bending traces. The first wires 1 in the bending area 21 need to be bent before and after binding, and because the bending of the first wires 1 can gather a large amount of static charges, when the static charges accumulate to a certain extent, the second wires 2 can be broken down, the static charges on the first wires 1 are guided to the first wires 1 connected with the second wires 2 through the second wires 2, an equipotential surface is generated, excessive static charges accumulated on the first wires 1 are balanced, the static discharge of the first wires 1 in the bending area 21 is reduced, and the antistatic capability of the bending area 21 of the display panel 100 is improved.
Optionally, two first wires 1 connected with the same second wire 2 are arranged on the same layer or different layers.
Specifically, the first wires 1 may be single-layer metal wires or multi-layer metal alternate wires, and when the first wires 1 are single-layer metal wires, two first wires 1 connected to the same second wire 2 may be disposed on the same layer. Fig. 5 is a schematic cross-sectional view along A-A of a display panel according to an embodiment of the present invention. On the basis of the above-described embodiment, referring to fig. 5, when the first wires 1 are alternating wires of a plurality of layers of metal, two first wires 1 connected with the same second wire 2 may be disposed at the same layer or at different layers. The second wires 2 are used for connecting the two first wires 1 positioned on the same layer or different layers, so that equipotential connection between the first wires 1 is realized, and the antistatic capacity of the first wires 1 is improved. It should be noted that, fig. 5 exemplarily illustrates a case where when the first wires 1 are two-layer metal alternate wires, two first wires 1 connected to the same second wire 2 are disposed on the same layer and different layers, respectively.
Optionally, fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention. On the basis of the above-described embodiment, referring to fig. 6, the second wire 2 and the first wire 1 to which the second wire 2 is connected may be commonly connected in at least one loop around the display area 10.
Specifically, in the non-display area 20, the first wires 1 are connected by the second wires 2, or the first wires 1 are alternately and jointly connected by the first wires 1 and the second wires 2, so that the first wires 1 connected by the second wires 2 and the second wires 2 can be jointly connected into a loop surrounding the display area 10 to form an electrostatic ring, charges accumulated on the first wires 1 can be transmitted along the loop, the electrostatic charges are uniformly distributed on the loop surrounding the display area 10, which is jointly connected by the second wires 2 and the first wires 1 connected by the second wires 2, the accumulation condition of the electrostatic charges is balanced, and the short circuit or burning of the wires in the display area 10 or the non-display area 20 caused by electrostatic discharge is avoided, so that the antistatic capability of the display panel 100 is improved.
Optionally, the second wires 2 and the two first wires 1 connected with the second wires 2 are arranged in different layers, and the two first wires 1 connected with the second wires 2 and the second wires 2 are connected through via holes.
Specifically, fig. 7 is a schematic structural diagram of a cross section of a display panel according to an embodiment of the present invention. On the basis of the above embodiment, referring to fig. 7, the non-display area 20 of the display panel 100 includes a substrate 22, a second trace 2 disposed on one side of the substrate 22, a thin film transistor 23 disposed on one side of the second trace 2 away from the substrate 22, and a first trace 1 may be disposed on one side of the thin film transistor 23 away from the substrate 22, where the first trace 1 is connected to the second trace 2 through a via 24. The second wires 2 are connected with the two first wires 1 connected with the second wires 2 through the through holes 24, equipotential is formed by connecting the first wires 1 through the second wires 2, antistatic capacity of the first wires 1 is improved, meanwhile, the two first wires 1 connected with the second wires 2 are arranged in different layers, the process of the display panel 100 is more met, and the process cost of the display panel 100 is not increased.
Alternatively, the second trace 2 may be a polysilicon trace.
Specifically, the polysilicon (PSI, polycrystalline Silicon) wires are formed by crystallization of amorphous silicon, the PSI wires can be communicated with the first wires 1, when static electricity on the first wires 1 is accumulated to a certain extent, the PSI wires can provide a path for the static electricity, the static electricity accumulated on the first wires 1 is transmitted to the first wires 1 connected by the PSI wires to form an equipotential body, the static electricity is transmitted to more bending wires, the local static electricity signal intensity on the first wires 1 is reduced, the static electricity signal intensity of the first wires 1 can not reach the static electricity discharge intensity, and the effect of anti-static electricity discharge is achieved. Meanwhile, the PSI wires are made of high-resistance materials, and signal transmission between the first wires 1 connected with the PSI wires is independent under the condition of no electrostatic discharge, so that the problem of signal interference is avoided.
Alternatively, the second trace 2 may be connected to the signal ground of the display panel 100.
Specifically, when there is no electrostatic discharge, the second wire 2 is grounded, but the impedance of the second wire 2 is greater than 100mΩ, so that the signal transmission on the first wire 1 is not affected; when the static electricity of the first wire 1 is accumulated to a certain extent, the second wire 2 is broken down, and the static electricity charges of the first wire 1 are led into the signal ground of the display panel 100 through the signal ground connection of the second wire 2 and the display panel 100, so that the anti-static capability of the first wire and the second signal is further improved, and the display performance of the display panel 100 is improved.
Alternatively, the first trace 1 may be a signal line, and the first trace 1 may be a straight line, a serpentine trace, or a trace with another shape. The specific shape and connection manner of the first trace 1 are not limited. The material of the first trace 1 may be metal, and the first trace 1 may be titanium aluminum titanium, copper, molybdenum, or the like, for example.
Alternatively, the second trace 2 may be arranged in the same layer as the first trace 1. The first wiring 1 can be arranged on the same layer as the patterned second wiring 2, so that the first wiring 1 is connected with the second wiring 2, and when the static charges on the first wiring 1 accumulate to a certain degree, the second wiring 2 arranged on the same layer is broken down for static protection. The second wiring 2 and the first wiring 1 are arranged in the same layer, so that the material cost of the first wiring 1 and the second wiring 2 can be saved.
Fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present invention. Referring to fig. 8, a display device 200 according to an embodiment of the present invention includes the display panel 100 according to any of the above embodiments.
Specifically, as shown in fig. 8, the display device 200 provided in the embodiment of the present invention includes the display panel 100 provided in any of the embodiments described above, and has the beneficial effects of the display panel provided in the embodiments described above, which are not described herein again. The display device 200 may be a mobile phone, a wearable device with a display function, a computer, or the like, for example.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (9)
1. A display panel, comprising: the display panel is provided with a display area and a non-display area; the display panel includes:
a plurality of first wires and at least one second wire;
the second wires are connected between the at least two first wires; the impedance of the second wire is more than 50MΩ and less than 1000MΩ; when the display panel works normally, the second wiring is in a high-resistance state, and the first wirings are mutually independent to transmit signals; when static charges accumulate, the second wire is in a conducting state, the accumulated static charges can reach the breakdown voltage of the second wire and are transmitted to other first wires connected with the second wire through the second wire, so that the first wires connected with the second wire are connected with each other in an equipotential manner;
the second wiring is a polysilicon wiring.
2. The display panel according to claim 1, wherein two adjacent first wires are connected by one second wire.
3. The display panel according to claim 1, wherein two adjacent first wires are connected by a plurality of second wires, and the plurality of second wires connected between the adjacent first wires are distributed.
4. The display panel of claim 1, wherein the second trace and the first trace to which the second trace is connected are commonly connected in a loop around the display area.
5. The display panel of any one of claims 1-4, wherein the non-display region further comprises a inflection region, the first trace and the second trace comprising inflection traces located at the inflection region.
6. The display panel according to claim 5, wherein every two adjacent first wires are connected by the second wire.
7. The display panel according to claim 1, wherein two of the first wirings connected to the same second wiring are disposed on the same layer or on different layers.
8. The display panel according to claim 1, wherein the second wires are disposed in different layers from the two first wires connected to the second wires, and the two first wires connected to the second wires are connected to the second wires through vias.
9. A display device comprising the display panel according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911159456.1A CN110827689B (en) | 2019-11-22 | 2019-11-22 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911159456.1A CN110827689B (en) | 2019-11-22 | 2019-11-22 | Display panel and display device |
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| CN110827689A CN110827689A (en) | 2020-02-21 |
| CN110827689B true CN110827689B (en) | 2023-11-03 |
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| CN111951668A (en) * | 2020-08-10 | 2020-11-17 | Tcl华星光电技术有限公司 | Display panel and display device |
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| CN110346994A (en) * | 2019-07-23 | 2019-10-18 | 昆山国显光电有限公司 | Array substrate and display panel |
| CN110456942A (en) * | 2019-08-13 | 2019-11-15 | 昆山国显光电有限公司 | Touch-control display panel and touch control display apparatus |
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