# US 10,310,649 B2 · Embedded touch panels and the array substrates thereof

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- Number: US 10,310,649 B2
- Document ID: US10310649B2
- Status: Granted
- Kind: B2
- Application number: 15/502,789
- Filed: 2016-12-30
- Published: 2018-07-26
- Granted: 2019-06-04
- Earliest claimed: 2016-12-30
- Assignees: Wuhan China Star Optoelectronics Technology Co., Ltd.
- Applicants: Wuhan China Star Optoelectronics Technology Co., Ltd.
- Inventors: Qipei Zhang; Chunqian Zhang
- Web page: https://patentgrep.com/patent/US10310649B2

## CPC

- G06F 3/0412: {Digitisers structurally integrated in a display}
- G02F 1/13338: {Input devices, e.g. touch panels}
- G02F 1/136286: {Wiring, e.g. gate line, drain line}
- G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)}
- G06F 3/0443: {using a single layer of sensing electrodes}
- G02F 1/134363: {for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]}
- G02F 1/13606: {having means for reducing parasitic capacitance}
- G02F 1/136209: {Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element}
- G02F 1/136227: {Through-hole connection of the pixel electrode to the active element through an insulation layer}
- G02F 1/13685: {Top gates}
- 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

## Abstract

The present disclosure relates to an array substrate of embedded touch panels. The array substrate includes a touch electrode arranged in an active area of the touch panel in a matrix, a touch sensing chip arranged outside the active area of the touch panel, a plurality of metal connecting lines arranged on a different layer with the touch electrode. The metal connecting lines connect to the touch electrode via at least one through hole, and the metal connecting line and a data line of the touch panel are insulated from each other and are overlapped. The touch electrode connects to the touch sensing chip via the metal connecting line, wherein a switch circuit is arranged between the metal connecting line and the data line. The switch circuit connects the metal connecting line and the data line in a touch phase, and the switch circuit disconnects the metal connecting line and the data line in a display phase.

## Claims

### Claim 1

An array substrate of embedded touch panels, comprising:
a touch electrode arranged in an active area of the touch panel in a matrix;
a touch sensing chip arranged outside the active area of the touch panel;
a plurality of metal connecting lines arranged on a different layer with the touch electrode, wherein the metal connecting lines are connected to the touch electrode via at least one through hole, and the metal connecting line and a data line of the touch panel are insulated from each other and are overlapped;
wherein the touch electrode is connected to the touch sensing chip via the metal connecting line;
wherein the switch circuit comprises at least one thin film transistor (TFT) and a common conductive line being arranged in a rim of the active area, a gate of the TFT is connected to the common conductive line, one of a source and a drain of the TFT is connected to the metal connecting line, and the other one of the source and the drain of the TFT is connected to the data line;
wherein the switch circuit is arranged between the metal connecting line and the data line, the switch circuit connects the metal connecting line and the data line in a touch phase, and the switch circuit disconnects the metal connecting line and the data line in a display phase.

### Claim 2 (depends on 1)

The array substrate as claimed in claim 1, wherein the common conductive line is lead out by the touch sensing chip.

### Claim 3 (depends on 1)

The array substrate as claimed in claim 1, wherein the TFT is a NMOS, a PMOS, a CMOS, or a transmission gate.

### Claim 4 (depends on 1)

The array substrate as claimed in claim 1, wherein the switch circuit is arranged at a top side or a bottom side of the active area of the touch panel.

### Claim 5

An embedded touch panel, comprising:
an array substrate comprising:
a touch electrode arranged in an active area of the touch panel in a matrix;
a touch sensing chip arranged outside the active area of the touch panel;
a plurality of metal connecting lines arranged on a different layer with the touch electrode, wherein the metal connecting lines are connected to the touch electrode via at least one through hole, and the metal connecting line and a data line of the touch panel are insulated from each other and are overlapped;
wherein the touch electrode is connected to the touch sensing chip via the metal connecting line;
wherein the switch circuit comprises at least one thin film transistor (TFT) and a common conductive line being arranged in a rim of the active area, a gate of the TFT is connected to the common conductive line, one of a source and a drain of the TFT is connected to the metal connecting line, and the other one of the source and the drain of the TFT is connected to the data line; and
wherein the switch circuit is arranged between the metal connecting line and the data line, the switch circuit connects the metal connecting line and the data line in a touch phase, and the switch circuit disconnects the metal connecting line and the data line in a display phase.

### Claim 6 (depends on 5)

The embedded touch panel as claimed in claim 5, wherein the common conductive line is lead out by the touch sensing chip.

### Claim 7 (depends on 5)

The embedded touch panel as claimed in claim 5, wherein the switch circuit is arranged at a top side or a bottom side of the active area of the touch panel.