Display panel

Patent metadata

Field	Value
Publication number	US-10887437-B2
Application number	US-201916462947-A
Country	US
Kind code	B2
Filing date	Mar 6, 2019
Priority date	Nov 14, 2018
Publication date	Jan 5, 2021
Grant date	Jan 5, 2021

Abstract

A display panel includes a display area, a border area, a touch layer, and a touch trace. The border area includes a first trace area on opposite sides of the display area, a second trace area on another side of the display area, and a trace reserved area disposed inside an intersection of the first trace area and the second trace area. The touch layer includes a first electrode chain and a second electrode chain that are mutually intersected and insulated. The touch trace connecting the first electrode chain is arranged in the first trace area and the trace reserved area, and the second trace area only arranges the touch trace connecting the second electrode chain.

First claim

What is claimed is:

1. A display panel, comprising:
a display area; a border area disposed at a periphery of the display area, wherein the border area comprises a binding area and a trace area, the trace area comprises a first trace area on opposite sides of the display area, a second trace area on another side of the display area, and a trace reserved area disposed at an intersection of the first trace area and the second trace area adjacent to a side of the display area, and the second trace area is positioned between the display area and the binding area; a touch layer disposed corresponding to the display area and comprising a first electrode chain and a second electrode chain that are mutually intersected and insulated, wherein the first electrode chain comprises a plurality of touch electrodes connected through a bridge, and the second electrode chain comprises a plurality of sensing electrodes connected to each other; a touch trace comprising a first trace and a second trace, wherein the first trace is disposed in the first trace area and is connected to the first electrode chain, and the second trace is disposed in the second trace area and is connected to the second electrode chain; and a flexible circuit board comprising a lead area disposed in a segment corresponding to the binding area, wherein the lead area comprises a first lead area at both ends of the lead area and a second lead area in a middle of the lead area; wherein the first lead area is disposed at a preset tilt angle corresponding to the intersection of the first trace area and the second trace area, at least a portion of the first trace is electrically connected to the first lead area via the trace reserved area and is arranged in a line curved or folded toward the second trace, and the second trace is electrically connected to the second lead area, and the first trace connecting the first electrode chain is connected to the flexible circuit board without passing through the second trace area.

2. The display panel according to claim 1 , wherein the first trace is evenly arranged on both sides of the display area.

3. The display panel according to claim 1 , wherein the first lead area is obliquely disposed toward a side of the trace reserved area.

4. The display panel according to claim 3 , wherein a predetermined tilt angle of the first lead area ranges between 0 degree and 90 degrees.

5. The display panel according to claim 3 , wherein a width between the first lead area and the touch layer is greater than or equal to a width of the first trace area.

6. The display panel according to claim 1 , wherein a boundary of a portion of the touch layer adjacent to the trace reserved area matches a boundary of the trace reserved area, and a boundary line of the first electrode chain and/or the second electrode chain adjacent to the trace reserved area is an arc, a straight line, or a fold line.

7. The display panel according to claim 6 , wherein a portion of the first trace positioned in the trace reserved area is parallel to the boundary line of the first electrode chain and/or the second electrode chain.

8. The display panel according to claim 7 , wherein a boundary line of the first lead area adjacent to a side of the trace reserved area is same with a boundary line of the first electrode chain and/or the second electrode chain corresponding to the trace reserved area.

9. The display panel according to claim 1 , wherein the flexible circuit board comprises at least two second lead areas, and the second trace is electrically connected to the at least two second lead areas.

10. A display panel, comprising:
a display area; a border area disposed at a periphery of the display area, wherein the border area comprises a binding area and a trace area, the trace area comprises a first trace area on opposite sides of the display area, a second trace area on another side of the display area, and a trace reserved area disposed at an intersection of the first trace area and the second trace area adjacent to a side of the display area, and the second trace area is positioned between the display area and the binding area; a touch layer disposed corresponding to the display area and comprising a first electrode chain and a second electrode chain that are mutually intersected and insulated; a touch trace comprising a first trace and a second trace, wherein the first trace is disposed in the first trace area and is connected to the first electrode chain, and the second trace is disposed in the second trace area and is connected to the second electrode chain; and a flexible circuit board comprising a lead area disposed in a segment corresponding to the binding area, wherein the lead area comprises a first lead area at both ends of the lead area and a second lead area in a middle of the lead area; wherein the first lead area is disposed at a preset tilt angle corresponding to the intersection of the first trace area and the second trace area, at least a portion of the first trace is electrically connected to the first lead area via the trace reserved area and is arranged in a line curved or folded toward the second trace, and the second trace is electrically connected to the second lead area, and the first trace connecting the first electrode chain is connected to the flexible circuit board without passing through the second trace area.

11. The display panel according to claim 10 , wherein the first trace is evenly arranged on both sides of the display area.

12. The display panel according to claim 10 , wherein the first lead area is obliquely disposed toward a side of the trace reserved area.

13. The display panel according to claim 12 , wherein a predetermined tilt angle of the first lead area ranges between 0 degree and 90 degrees.

14. The display panel according to claim 12 , wherein a width between the first lead area and the touch layer is greater than or equal to a width of the first trace area.

15. The display panel according to claim 10 , wherein a boundary of a portion of the touch layer adjacent to the trace reserved area matches a boundary of the trace reserved area, and a boundary line of the first electrode chain and/or the second electrode chain adjacent to the trace reserved area is an arc, a straight line, or a fold line.

16. The display panel according to claim 15 , wherein a portion of the first trace positioned in the trace reserved area is parallel to the boundary line of the first electrode chain and/or the second electrode chain.

17. The display panel according to claim 16 , wherein a boundary line of the first lead area adjacent to a side of the trace reserved area is same with a boundary line of the first electrode chain and/or the second electrode chain corresponding to the trace reserved area.

18. The display panel according to claim 10 , wherein the flexible circuit board comprises at least two second lead areas, and the second trace is electrically connected to the at least two second lead areas.

Assignees

• Wuhan China Star Optoelectronics Semiconductor Display Tech Co Ltd
• Wuhan Chima Star Optoelectronics Semiconductor Display Tech Co Ltd

Inventors

• Ye Jian

Classifications

• H04M2250/22

  including a touch pad, a touch sensor or a touch detector · CPC title

• G06F1/1643

  the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615) · CPC title

• H05K2201/10128

  Display · CPC title

• H04M1/0266 Primary

  for a display module assembly · CPC title

• H05K1/189

  characterised by the use of flexible or folded printed circuits · CPC title