Display apparatus, touch-control display panel and manufacturing method therefor, and touch-control panel

Patent metadata

Field	Value
Publication number	US-2023102480-A1
Application number	US-202117911421-A
Country	US
Kind code	A1
Filing date	Nov 19, 2021
Priority date	Jan 25, 2021
Publication date	Mar 30, 2023
Grant date	—

Abstract

The present disclosure relates to a touch-control panel, including a touch-control layer arranged on the side of a display substrate having a display area and a peripheral area. The touch-control layer includes a touch-control electrode at least partially located in the display area and a peripheral wiring located in the peripheral area; the touch-control electrode includes a first touch-control electrode and a second touch-control electrode; the peripheral wiring includes a first wiring, a second wiring, a first shielding line and a second shielding line; the first shielding line is arranged outside the first wiring, the second wiring is arranged outside the first shielding line, and the second shielding line is arranged outside the second wiring.

First claim

1 . A touch panel, comprising:
a touch layer, disposed on a side of a display substrate, wherein the display substrate has a display area and a peripheral area outside the display area; wherein the touch layer comprises a touch electrode and a peripheral trace, and the touch electrode is at least partially located in the display area, the peripheral trace is located in the peripheral area; wherein the touch electrode comprises a first touch electrode and a second touch electrode, and the peripheral trace comprises a first trace, a second trace, a first shielding line and a second shielding line; wherein the first trace is disposed outside the display area and is coupled with the first touch electrode, the first shielding line is disposed outside the first trace, the second trace is disposed outside the first shielding line and is coupled with the second touch electrode, and the second shielding line is disposed outside the second trace; wherein a width of at least a partial area of a gap between the first shielding line and the first trace is a first spacing, a width of at least a partial area of a gap between the second trace and the first shielding line is a second spacing, and a width of at least a partial area of a gap between the second shielding line and the second trace is a third spacing; and wherein the third spacing is greater than the first spacing and greater than the second spacing.

2 . The touch panel according to claim 1 , wherein the first spacing is greater than the second spacing.

3 . The touch panel according to claim 1 , wherein the third spacing is less than twice the first spacing and less than twice the second spacing.

4 . The touch panel according to claim 1 , wherein the display area comprises a binding area;
the first trace, the second trace, the first shielding line and the second shielding line each comprise a body portion and an extension portion, and the body portion is located in the display area and located outside the binding area, the extension portion is extended into the binding area; a width of a gap between the first shielding line and the body portion of the first trace is the first spacing, a width of a gap between the first shielding line and the body portion of the second trace is the second spacing, and a width of a gap between the second shielding line and the body portion of the second trace is the third spacing; a width of at least a partial area of a gap between the first shielding line and the extension portion of the first trace is a fourth spacing, a width of at least a partial area of a gap between the first shielding line and the extension portion of the second trace is a fifth spacing, and a width of at least a partial area of a gap between the second shielding line and the extension portion of the second trace is a sixth spacing; the sixth spacing is greater than the fourth spacing and greater than the fifth spacing; and the sixth spacing is greater than the third spacing, the fifth spacing is greater than the second spacing, and the fourth spacing is greater than the first spacing.

5 . The touch panel according to claim 4 , wherein the fourth spacing is greater than the fifth spacing.

6 . The touch panel according to claim 1 , wherein the display area comprises a binding area;
the first trace, the second trace, the first shielding line and the second shielding line each comprise a body portion and an extension portion, and the body portion is located in the display area and located outside the binding area, the extension portion is extended into the binding area; a width of a gap between the first shielding line and the body portion of the first trace is the first spacing, a width of a gap between the first shielding line and the body portion of the second trace is the second spacing, and a width of a gap between the second shielding line and the body portion of the second trace is the third spacing; a width of at least a partial area of a gap between the first shielding line and the extension portion of the first trace is a fourth spacing, a width of at least a partial area of a gap between the first shielding line and the extension portion of the second trace is a fifth spacing, and a width of at least a partial area of a gap between the second shielding line and the extension portion of the second trace is a sixth spacing; and the fourth spacing, the fifth spacing and the sixth spacing are identical.

7 . The touch panel according to claim 4 , wherein a width of any body portion is smaller than a width of an extension portion to which the body portion is coupled, and widths of individual extension portions are identical.

8 . The touch panel according to claim 4 , wherein the touch layer comprises:
a conductive layer, comprising an electrode area and a trace area; a first insulating layer, wherein a surface of the conductive layer away from the display substrate is covered by the first insulating layer; and a connection layer, disposed on a surface of the first insulating laver away from the display substrate, wherein the electrode area is at least partially located in the display area, and comprises a plurality of second touch electrodes extending along a first direction and distributed at intervals along a second direction and a plurality of electrode unit groups extending along the second direction and distributed along the first direction, each electrode unit group comprises a plurality of electrode units distributed along the second direction and the first direction is intersected with the second direction; wherein the trace area is located in the peripheral area, and the trace area comprises the peripheral trace; and wherein the connection layer comprises a plurality of connection units, two adjacent electrode units are coupled through one of the connection units in the second direction, and any first touch electrode comprises a column of connection units and the electrode units coupled to the connection units.

9 . The touch panel according to claim 8 , wherein the touch panel further comprises:
a hardened layer, wherein the side of the display substrate is covered by the hardened layer; and an index matching layer, disposed on a surface of the hardened layer away from the display substrate, wherein the touch layer is disposed on a surface of the index matching layer away from the display substrate.

10 . The touch panel according to claim 8 , wherein materials of the conductive layer and the connection layer both comprise transparent conductive materials.

11 . The touch panel according to claim 8 , wherein a material of the peripheral trace comprises metallic silver.

12 . The touch panel according to claim 8 , wherein the touch panel further comprises:
a second insulating layer, wherein surfaces of the connection layer and the first insulating layer away from the display substrate are covered by the second insulating layer, and a polarizing layer, disposed on a surface of the second insulating layer away from the display substrate, wherein the polarizing layer is provided with an opening, and the binding area is located within an orthographic projection of the opening on the display substrate.

13 . A touch display panel, comprising:
a display substrate, having a display area and a peripheral area outside the display area; and a touch panel, disposed on a side of the display substrate, wherein the touch panel comprises: a touch laver, disposed on a side of a display substrate, wherein the display substrate has a display area and a peripheral area outside the display area; wherein the touch layer comprises a touch electrode and a peripheral trace, and the

Assignees

• Hefei Xinsheng Optoelectronics Technology Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Xu Jiawei
• Fan Wenjin
• Zhang Wei
• Dong Zhao
• Li Bisheng
• Li Baoran

Classifications

• H10K59/40 Primary

  OLEDs integrated with touch screens · CPC title

• H10K59/126

  Shielding, e.g. light-blocking means over the TFTs · CPC title

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title