CN110993666A - Display panel and electronic device - Google Patents
Display panel and electronic device Download PDFInfo
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- CN110993666A CN110993666A CN201911248682.7A CN201911248682A CN110993666A CN 110993666 A CN110993666 A CN 110993666A CN 201911248682 A CN201911248682 A CN 201911248682A CN 110993666 A CN110993666 A CN 110993666A
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- display panel
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- reset
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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
- H10K59/1315—Interconnections, e.g. wiring lines or terminals comprising structures specially adapted for lowering the resistance
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- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a display panel and an electronic device, wherein the display panel comprises: a substrate base plate; the active layer is arranged on the substrate base plate; a gate electrode disposed on the active layer; the first metal layer is arranged on the grid electrode and comprises a metal part and a reset wire; the position of the metal part corresponds to the position of the grid electrode; the second metal layer is arranged on the first metal layer and comprises a source electrode, a drain electrode and a connecting wire; the anode layer is arranged on the second metal layer and comprises an anode and an auxiliary line; the auxiliary line is connected with the reset line through the connecting line. The display panel and the electronic device can reduce the impedance of the reset wire.
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 ]
To achieve a narrow bezel design, a larger screen duty ratio is achieved, typically with a reduced edge area. In order to reduce the lower edge, a pad bending (backing) technology is usually adopted, and as shown in fig. 1, specifically, a part of fan-out traces of the screen, the driver chip 14 and the flexible circuit board 15 are bent together to the back of the screen for binding, so that the width of the lower edge area can be effectively reduced.
However, in the edge regions on the left and right sides of the display region 101, the reset line 11(VI line), the power supply line (VSS line) 12, the GOA circuit 13, and the like are distributed. The power supply wire 12 is a wire lapped with the anode of the OLED, the width of the power supply wire 12 is too small, which affects the light emitting performance, and the GOA circuit 13 is used as a driving circuit, and the compressible space is very small due to the limitation of the specification of the machine. Thus, the width of the reset line is compressed to the maximum, but when the width of the reset line is compressed, the impedance of the reset line increases.
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 reduce the impedance of a reset wire.
To solve the above technical problem, the present invention provides a display panel, including:
a substrate base plate;
the active layer is arranged on the substrate base plate;
a gate electrode disposed on the active layer;
the first metal layer is arranged on the grid electrode and comprises a metal part and a reset wire; the position of the metal part corresponds to the position of the grid electrode;
the second metal layer is arranged on the first metal layer and comprises a source electrode, a drain electrode and a connecting wire;
the anode layer is arranged on the second metal layer and comprises an anode and an auxiliary line; the auxiliary line is connected with the reset line through the connecting line.
The invention also provides an electronic device which comprises the display panel.
The display panel and the electronic device of the invention comprise a substrate base plate; the active layer is arranged on the substrate base plate; a gate electrode disposed on the active layer; the first metal layer is arranged on the grid electrode and comprises a metal part and a reset wire; the position of the metal part corresponds to the position of the grid electrode; the second metal layer is arranged on the first metal layer and comprises a source electrode, a drain electrode and a connecting wire; the anode layer is arranged on the second metal layer and comprises an anode and an auxiliary line; the auxiliary line is connected with the reset line through the connecting line; the auxiliary lines are connected with the reset lines to form parallel resistors, so that the impedance of the reset lines in the display area is reduced, the voltage drop is reduced, and the uniformity of the display panel is improved.
[ description of the drawings ]
FIG. 1 is a top view of a conventional display panel;
FIG. 2 is a schematic structural diagram of a display panel according to the present invention;
fig. 3 is a top view of the auxiliary line and the reset line of 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.
As shown in fig. 2, the display panel of the present embodiment includes a substrate 20, an active layer 33, a gate electrode 35, a first metal layer 37, a second metal layer 39, and an anode layer 41.
In an embodiment, the substrate base plate 20 may include a first flexible substrate 21, a first buffer layer 22, and a second flexible substrate 23. Wherein the first buffer layer 22 is located between the first flexible substrate 21 and the second flexible substrate 23, wherein the materials of the first flexible substrate 21 and the second flexible substrate 23 can both be polyimide. The material of the second buffer layer 22 may be SiO2SiNx and SiON.
An active layer 33 is provided on the base substrate 20. Wherein the active layer 33 is used to form a channel. The material of the active layer 33 may be a metal oxide material, such as IGZO or ITZO.
A gate electrode 35 is disposed on the active layer 33. The gate electrode 35 is obtained by patterning the entire metal layer disposed on the active layer 33. In one embodiment, the material structure of the gate 35 may be TI/Al/TI.
The first metal layer 37 is arranged on the gate 35, and the first metal layer 37 comprises a metal part 371 and a reset wire 372; the metal portion 371 is located corresponding to the gate electrode 35 to form a storage capacitor. The metal portion 371 and the reset wire 372 are spaced apart from each other. It will be appreciated that the width of the reset line 372 is less than a predetermined value. I.e., the width of the reset line 372 is small. The reset line 372 is used for resetting the display panel when the input of each frame of picture is finished.
The second metal layer 39 is disposed on the first metal layer 37, and the second metal layer 39 includes a source 391, a drain 392, and a connecting line 393. Specifically, the source electrode 391, the drain electrode 392, and the connecting line 393 are obtained by patterning the second metal layer 39. The connecting lines 393 are spaced apart from the source 391 and the drain 392, respectively. Wherein the source 391 and the drain 392 are both connected to the active layer 33. The material of the second metal layer 39 is a metal such as Mo, Al, Ti, Cu, etc., or a composite layer.
The anode layer 41 is disposed on the second metal layer 39 and includes an anode 411 and an auxiliary line 412; the auxiliary line 412 is connected to the reset line 372 through the connection line 393. Wherein the material of the anode layer 41 may be a metal material to better reduce the resistance of the reset line.
In addition, the display panel may further include a barrier layer 24, a second buffer layer 25, a first gate insulating layer 34, a second gate insulating layer 36, a first insulating layer 38, a second insulating layer 40, a pixel defining layer 42, an organic light emitting layer, a cathode, and a spacer 43, etc.
In an embodiment, the barrier layer 24 and the second buffer layer 25 are disposed between the active layer 33 and the substrate 20, and the second buffer layer 25 may be disposed on the barrier layer 24.
In an embodiment, the first gate insulating layer 34 may be disposed between the gate electrode 35 and the active layer 33.
In one embodiment, the second gate insulating layer 36 is disposed between the gate electrode 35 and the first metal layer 37.
A first insulating layer 38 is arranged between the second metal layer 39 and the first metal layer 37. In order to improve connection stability, a first via 381 is disposed on the first insulating layer 38, and the connection line 393 may be connected to the reset line 372 through the first via 381.
A second insulating layer 40 is arranged between said second metal layer 39 and said anode layer 41. A second via 401 may be disposed on the second insulating layer 40, and the connecting line 393 is connected to the auxiliary line 412 through the second via 401. In one embodiment, the contact area between the connecting line 393 and the reset line 372 and the contact area between the connecting line 393 and the auxiliary line 412 are set according to the impedance of the reset line 372, so that the impedance of the reset line meets a predetermined condition, thereby meeting the process requirement.
A third via 402 may be disposed on the second insulating layer 40, and the anode 411 is connected to the drain 392 through the third via 402.
In the present embodiment, only a single reset line, connecting line, and auxiliary line are described, but the number of reset lines, connecting lines, and auxiliary lines in an actual panel is plural. Each reset line corresponds to a connecting line and an auxiliary line.
In one embodiment, in order to make the impedance of the reset line 372 within a predetermined range, as shown in fig. 3, in a plan view, a projection of the reset line 372 on the substrate base plate 20 overlaps a projection of the auxiliary line 412 on the substrate base plate 20, and the connecting line 393 is located at a position corresponding to a position where the reset line 372 and the auxiliary line 412 overlap. That is, the orthographic projection of the reset wire 372 overlaps the corresponding orthographic projection portion of the auxiliary wire 412.
In order to avoid affecting the aperture ratio, the display panel includes a plurality of rows of organic light emitting units 301, and the reset lines 372 and the auxiliary lines 412 are located at gaps between two adjacent rows of organic light emitting units 301. Wherein the auxiliary line 412 has a saw-tooth shape, and the reset line 372 has a bar shape. The auxiliary line 412 is spaced apart from the organic light emitting unit 301. The cross-sectional structure of the organic light emitting unit 301 includes an anode, an organic light emitting layer, and a cathode, i.e., the auxiliary line 412 is spaced apart from the anode.
The auxiliary lines are connected with the reset lines to form parallel resistors, so that the impedance of the reset lines in the display area is reduced, the voltage drop is reduced, the uniformity of the display panel is improved, the risk of disconnection of the reset lines is reduced, and the product yield is improved.
The invention also provides an electronic device which comprises any one of the display panels, and the electronic device can be a mobile phone, a tablet personal computer and other equipment.
The display panel and the electronic device of the invention comprise a substrate base plate; the active layer is arranged on the substrate base plate; a gate electrode disposed on the active layer; the first metal layer is arranged on the grid electrode and comprises a metal part and a reset wire; the position of the metal part corresponds to the position of the grid electrode; the second metal layer is arranged on the first metal layer and comprises a source electrode, a drain electrode and a connecting wire; the anode layer is arranged on the second metal layer and comprises an anode and an auxiliary line; the auxiliary line is connected with the reset line through the connecting line; the auxiliary lines are connected with the reset lines to form parallel resistors, so that the impedance of the reset lines in the display area is reduced, the voltage drop is reduced, and the uniformity of the display panel is improved.
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 (10)
1. A display panel, comprising
A substrate base plate;
the active layer is arranged on the substrate base plate;
a gate electrode disposed on the active layer;
the first metal layer is arranged on the grid electrode and comprises a metal part and a reset wire; the position of the metal part corresponds to the position of the grid electrode;
the second metal layer is arranged on the first metal layer and comprises a source electrode, a drain electrode and a connecting wire;
the anode layer is arranged on the second metal layer and comprises an anode and an auxiliary line; the auxiliary line is connected with the reset line through the connecting line.
2. The display panel according to claim 1,
in a depression view, a projection of the reset wire on the substrate base plate overlaps a projection part of the auxiliary wire on the substrate base plate, and a position of the connecting wire corresponds to a position of an overlapping place of the reset wire and the auxiliary wire.
3. The display panel according to claim 2,
the display panel comprises a plurality of organic light emitting unit columns, and the reset line and the auxiliary line are both positioned at a gap between two adjacent organic light emitting unit columns.
4. The display panel according to claim 2,
the auxiliary lines are in a sawtooth shape, and the reset lines are in a strip shape.
5. The display panel according to claim 1,
the contact area between the connection line and the reset line and the contact area between the connection line and the auxiliary line are set according to the impedance of the reset line.
6. The display panel according to claim 1,
a first insulating layer is arranged between the second metal layer and the first metal layer, a first through hole is formed in the first insulating layer, and the connecting wire is connected with the reset wire through the first through hole.
7. The display panel according to claim 1,
and a second insulating layer is arranged between the second metal layer and the anode layer, a second through hole is formed in the second insulating layer, and the connecting line is connected with the auxiliary line through the second through hole.
8. The display panel according to claim 7,
and a third through hole is formed in the second insulating layer, and the anode is connected with the drain electrode through the third through hole.
9. The display panel according to claim 1,
the anode layer is made of a metal material.
10. An electronic device, characterized by comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911248682.7A CN110993666A (en) | 2019-12-09 | 2019-12-09 | Display panel and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911248682.7A CN110993666A (en) | 2019-12-09 | 2019-12-09 | Display panel and electronic device |
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| CN110993666A true CN110993666A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911248682.7A Pending CN110993666A (en) | 2019-12-09 | 2019-12-09 | Display panel and electronic device |
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| CN (1) | CN110993666A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112786670A (en) * | 2021-01-11 | 2021-05-11 | 武汉华星光电半导体显示技术有限公司 | Array substrate, display panel and manufacturing method of array substrate |
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| CN109256395A (en) * | 2018-09-04 | 2019-01-22 | 京东方科技集团股份有限公司 | A kind of display base plate and preparation method thereof, display device |
| CN109378318A (en) * | 2018-10-15 | 2019-02-22 | 武汉华星光电半导体显示技术有限公司 | A kind of display panel and preparation method thereof |
| CN109493733A (en) * | 2018-10-23 | 2019-03-19 | 武汉华星光电半导体显示技术有限公司 | Display panel and electronic equipment |
| CN109817643A (en) * | 2019-01-29 | 2019-05-28 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| CN110429116A (en) * | 2019-07-24 | 2019-11-08 | 武汉华星光电半导体显示技术有限公司 | A kind of manufacturing method of array substrate, display panel and array substrate |
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2019
- 2019-12-09 CN CN201911248682.7A patent/CN110993666A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256395A (en) * | 2018-09-04 | 2019-01-22 | 京东方科技集团股份有限公司 | A kind of display base plate and preparation method thereof, display device |
| CN109378318A (en) * | 2018-10-15 | 2019-02-22 | 武汉华星光电半导体显示技术有限公司 | A kind of display panel and preparation method thereof |
| CN109493733A (en) * | 2018-10-23 | 2019-03-19 | 武汉华星光电半导体显示技术有限公司 | Display panel and electronic equipment |
| CN109817643A (en) * | 2019-01-29 | 2019-05-28 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112786670A (en) * | 2021-01-11 | 2021-05-11 | 武汉华星光电半导体显示技术有限公司 | Array substrate, display panel and manufacturing method of array substrate |
| CN112786670B (en) * | 2021-01-11 | 2022-07-29 | 武汉华星光电半导体显示技术有限公司 | Array substrate, display panel and manufacturing method of array substrate |
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Application publication date: 20200410 |
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| RJ01 | Rejection of invention patent application after publication |