Display panel and electronic device

Patent metadata

Field	Value
Publication number	US-12039115-B2
Application number	US-202117623545-A
Country	US
Kind code	B2
Filing date	Dec 20, 2021
Priority date	Dec 13, 2021
Publication date	Jul 16, 2024
Grant date	Jul 16, 2024

Abstract

A display panel and electronic device are provided. The display panel comprises a plurality of touch signal lines, a plurality of display signal lines, a plurality of first-type signal shielding lines, and a plurality of first power lines. The first-type signal shielding line is arranged in the non-display area, and the first-type signal shielding line is located between the touch signal line and the display signal line. The first power line is connected to a fixed voltage signal, and the first-type signal shielding line is electrically connected to the first power lines respectively on both sides of the bending sub-area.

First claim

What is claimed is:

1. A display panel having a display area and a non-display area, the non-display area comprising a bending sub-area, wherein the display panel comprises:
a plurality of touch signal lines that are located in the display area and the non-display area;
a plurality of display signal lines that are located in the display area and the non-display area;
a plurality of first-type signal shielding lines that are arranged in the non-display area, each of the first-type signal shielding line being located between the touch signal line and the display signal line; and,
a plurality of first power lines that are located in the display area and the non-display area and are connected to a fixed voltage signal;
wherein, the first-type signal shielding lines are electrically connected to the first power lines respectively on both sides of the bending sub-area.

2. The display panel according to claim 1 , wherein the non-display area comprises a first power line sub-region, and the first power line is located in the first power line sub-region, spaced from part of the touch signal lines and the display signal lines which are located in the power line sub-region, and in a same layer with parts of the display signal line and the touch signal line which are located in the bending sub-area.

3. The display panel according to claim 2 , wherein at least parts of the first-type signal shielding line, the touch signal line, and the display signal line are arranged in the same layer.

4. The display panel of claim 3 , wherein the display panel comprises:
a substrate;
an active layer, a first gate insulating layer, a first gate, a second gate insulating layer, a second gate and an interlayer dielectric layer which are stacked in sequence, wherein the interlayer dielectric layer is provided with a through hole, and the through hole penetrates at least the interlayer dielectric layer, the second gate insulating layer and the first gate insulating layer, and the display signal line covers at least a part of the side wall of the through hole;
a first source/drain metal layer being disposed on the interlayer dielectric layer, the first source/drain metal layer comprising a source electrode, a drain electrode, and a first part of the first power line;
a first planarization layer covering the first source/drain metal layer and filling the through hole;
a second source/drain metal layer that is located on the first planarization layer and comprises a connecting electrode, a second part of the first power line, a third part of the first power line, wherein the first part of the first power line and the second part of the first power line are connected by a first via; and
a second planarization layer being disposed on the first planarization layer.

5. The display panel of claim 4 , wherein the first-type signal shielding line is electrically connected to the first power line through a second via hole.

6. The display panel of claim 1 , wherein the display panel further comprises:
a touch-control chip that is located on one side of the non-display area away from the display area, connected to the touch signal line, and used for providing a touch signal to the touch signal line; and
a control chip that is located on one side of the non-display area away from the display area, wherein the control chip is connected to the display signal line and the first power line, the first-type signal shielding line is electrically connected to the control chip through the first power line, and the control chip is used to provide a display signal for the display signal line and the fixed voltage signal for the first power line.

7. The display panel of claim 6 , wherein the non-display area comprises:
a second power line sub-region that is located on at least one side of the first power line sub-region and distributed with a plurality of second power lines.

8. The display panel of claim 7 , wherein the touch signal lines comprise a first-type touch signal line and a second-type touch signal line, and the first-type touch signal line is connected to the touch-control chip over the first power line sub-region, and the second-type touch signal line is connected to the touch-control chip over the second power line sub-region.

9. The display panel according to claim 8 , wherein the touch-control chip comprises a first touch-control chip and a second touch-control chip, the first touch-control chip and the second touch-control chip are located on both sides of the control chip, the first-type touch signal lines and the second-type touch signal lines located on one side of the center line of the display panel are connected to the first touch-control chip, and the first-type touch signal lines and the second-type touch signal lines located on the other side of the center line of the display panel are connected to the second touch-control chip.

10. The display panel of claim 9 , wherein the display panel further comprises:
a second-type signal shielding line that is located in the non-display area and arranged around the display area, wherein a first end of the second-type signal shielding line is connected to the first touch-control chip, and a second end of the second-type signal shielding line is connected to the second touch-control chip.

11. The display panel of claim 6 , wherein the display panel further comprises:
a plurality of touch units that are arranged in the display area, wherein the ends of the touch signal lines away from the touch-control chip are connected to the touch units, and the touch signal lines are connected to the touch units in a one-to-one correspondence.

12. The display panel of claim 1 , wherein the first-type signal shielding line is arranged in parallel with the display signal line.

13. An electronic device, wherein the electronic device is provided with a display panel and a housing, the display panel is disposed in the housing, and the display panel comprises:
a plurality of touch signal lines that are located in the display area and the non-display area;
a plurality of display signal lines that are located in the display area and the non-display area;
a plurality of first-type signal shielding lines that are arranged in the non-display area, each of the first-type signal shielding line being located between the touch signal line and the display signal line; and
a plurality of first power lines that are located in the display area and the non-display area and are connected to a fixed voltage signal;
wherein, the first-type signal shielding lines are electrically connected to the first power lines respectively on both sides of the bending sub-area.

14. The electronic device according to claim 13 , wherein the non-display area comprises a first power line sub-region, and the first power line is located in the first power line sub-region, spaced from part of the touch signal lines and the display signal lines which are located in the power line sub-region, and in a same layer with parts of the display signal line and the touch signal line which are located in the bending sub-area.

15. The electronic device according to claim 14 , wherein at least parts of the first-type signal shielding line, the touch signal line, and the display signal line are arranged in the same layer.

16. The electronic device of claim 15 , wherein the display panel comprises:
a substrate;
an active layer, a first gate insulating layer, a first gate, a second gate insulating layer, a second gate and an interlayer dielectric layer which are stacked in sequence, wherein the interlayer dielectric layer is provided with a t

Assignees

• Wuhan China Star Optoelectronics Semiconductor Display Tech Co Ltd

Inventors

• Fang Liang
• Ding Ding

Classifications

• G06F3/044

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• G06F3/04164

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• G06F3/04182

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• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title