# US 11,442,589 B2 · Touch panel and manufacturing method thereof, display panel and display device

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- Number: US 11,442,589 B2
- Document ID: US11442589B2
- Status: Granted
- Kind: B2
- Application number: 16/070,035
- Filed: 2018-01-04
- Published: 2021-07-29
- Granted: 2022-09-13
- Earliest claimed: 2017-04-13
- Assignees: Beijing BOE Technology Development Co., Ltd.; Chengdu Boe Optoelectronics Technology Co., Ltd.
- Applicants: Boe Technology Group Co., Ltd.; Chengdu Boe Optoelectronics Technology Co., Ltd.
- Inventors: Jibum Yang; Wanli Dong
- Web page: https://patentgrep.com/patent/US11442589B2

## CPC

- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F 3/0448: {Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- G02F 1/13338: {Input devices, e.g. touch panels}
- G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
- H10K 59/40: OLEDs integrated with touch screens
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A touch panel and a manufacturing method thereof, a display panel and a display device are described. The touch panel includes a substrate; a touch electrode arranged on the substrate; and a light processing structure arranged on a surface of the touch electrode to scatter light irradiated thereon so as to reduce reflection of light by the surface of the touch electrode. By arranging the light processing structure on the surface of the touch electrode, the touch panel can make light irradiated on the surface of the touch electrode to be scattered so as to reduce reflection of light by the surface of the touch electrode. Thus, display brightness of the display panel that uses said touch panel is increased, and the degree of brightness decline is reduced when the display panel that uses said touch panel is used outdoors.

## Claims

### Claim 1

A touch panel, comprising: a substrate; a touch electrode arranged on the substrate; and a light processing structure arranged on a surface of the touch electrode to scatter light irradiated to reduce reflection of light by the surface of the touch electrode, wherein the surface of the touch electrode faces the substrate, a cross section view of the touch electrode has a sawtooth shape, the touch electrode and the light processing structure are integrated, a material used for the touch electrode comprises metal material, and a material for the light processing structure is the same as the material used for the touch electrode.

### Claim 2 (depends on 1)

The touch panel according to claim 1, wherein the light processing structure comprises a plurality of protrusions.

### Claim 3 (depends on 2)

The touch panel according to claim 2, wherein the plurality of protrusions are evenly distributed on the surface of the touch electrode.

### Claim 4 (depends on 2)

The touch panel according to claim 2, wherein an interval between any two adjacent ones of the protrusions is within the range of 1 nm-1 μm.

### Claim 5 (depends on 2)

The touch panel according to claim 2, wherein the material of which the protrusions are made comprises at least one of indium tin oxide, metal material and carbon.

### Claim 6 (depends on 1)

The touch panel according to claim 1, wherein the touch electrode is distributed in a grid shape.

### Claim 7 (depends on 1)

A display panel, comprising the touch panel according to claim 1.

### Claim 8 (depends on 7)

The display panel according to claim 7, wherein the display panel is selected from a group consisting of an organic electroluminescent panel and a liquid crystal panel.

### Claim 9 (depends on 7)

A display device, comprising the display panel according to claim 7.

### Claim 10 (depends on 7)

The display panel according to claim 7, wherein the light processing structure comprises a plurality of protrusions.

### Claim 11 (depends on 10)

The display panel according to claim 10, wherein the plurality of protrusions are evenly distributed on the surface of the touch electrode.

### Claim 12 (depends on 10)

The display panel according to claim 10, wherein an interval between any two adjacent ones of the protrusions is within the range of 1 nm-1 μm.