ARRAY SUBSTRATE, METHOD FOR MANUFACTURING THE SAME AND METHOD FOR DRIVING THE SAME, TOUCH PANEL AND DISPLAY DEVICE

• US 20170199603A1
• Filed: 08/05/2016
• Published: 07/13/2017
• Est. Priority Date: 01/08/2016
• Status: Active Grant

• Current Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Original Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Inventors: Xu, Rui, Yang, Shengji
• Granted Patent: US 10,459,552 B2
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: H01L 27/124 with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits wiring structures per se H01L23/52
• CPC Class Codes: H01L 27/1255 integrated with passive devices, e.g. auxiliary capacitors

Abstract

The embodiments of the disclosure provide an array substrate, a method for manufacturing the same and a method for driving the same, a touch panel and a display device. The manufacturing method includes forming a gate and a touch electrode pattern on a substrate, the touch electrode pattern including at least one touch electrode group, each touch electrode group including at least one touch electrode; forming a pixel electrode layer on the substrate formed with the touch electrode pattern; forming a first common electrode pattern on the substrate formed with the pixel electrode layer, the first common electrode pattern including at least one first common electrode group, each first common electrode group including at least one first common electrode, the first common electrode group and the touch electrode group being used for forming mutual capacitance which changes when a finger acts on the touch panel.

Claims

1. A method for manufacturing an array substrate, characterized by comprising the steps of:

forming a gate and a touch electrode pattern on a substrate, the touch electrode pattern including at least one touch electrode group, each touch electrode group including at least one touch electrode, each touch electrode group being electrically connected with a touch integrated circuit;

forming a pixel electrode layer on the substrate formed with the touch electrode pattern;

forming a first common electrode pattern on the substrate formed with the pixel electrode layer, the first common electrode pattern including at least one first common electrode group, each first common electrode group including at least one first common electrode, each first common electrode group being electrically connected with the touch integrated circuit;

wherein, a direction in which touch electrodes in any touch electrode group are arranged is perpendicular to a direction in which first common electrodes in any first common electrode group are arranged, and the first common electrode group and the touch electrode group are configured to form mutual capacitance which changes when a finger acts on a touch panel including the array substrate.

2. The method according to claim 1, characterized in that the touch electrode pattern includes a touch electrode lead pattern including at least one touch electrode lead;

each touch electrode group is electrically connected with the touch integrated circuit via a touch electrode lead.

3. The method according to claim 2, characterized in that the touch electrode lead pattern is a second common electrode pattern including at least one second common electrode in shape of a bar;

each touch electrode group is electrically connected with the touch integrated circuit via a second common electrode.

4. The method according to claim 1, characterized in that the step of forming a pixel electrode layer on the substrate formed with the touch electrode pattern comprises:

forming a gate insulation layer on the substrate formed with the touch electrode pattern;

forming an active layer pattern on the substrate formed with the gate insulation layer;

forming a data line and a source and drain metal pattern on the substrate formed with the active layer pattern;

forming the pixel electrode layer on the substrate formed with the source and drain metal pattern.

5. The method according to claim 4, characterized in that a passivation layer is formed on the substrate formed with the pixel electrode layer after forming the pixel electrode layer on the substrate formed with the source and drain metal pattern.

6. The method according to claim 1, characterized in that

projections of the touch electrode and the pixel electrode layer on the substrate have a first overlapping region;

projections of the pixel electrode layer and the first common electrode on the substrate have a second overlapping region.

7. The method according to claim 1, characterized in that the touch electrode is made of a transparent conductive material.

8. The method according to claim 1, characterized in that

the touch electrode is a TX drive electrode;

and

the first common electrode is a RX sense electrode.

9. An array substrate comprising:

a substrate;

a gate and a touch electrode pattern formed on the substrate, the touch electrode pattern including at least one touch electrode group, each touch electrode group including at least one touch electrode;

each touch electrode group being electrically connected with a touch integrated circuit;

a pixel electrode layer formed on the substrate formed with the touch electrode pattern;

a first common electrode pattern formed on the substrate formed with the pixel electrode layer, the first common electrode pattern including at least one first common electrode group, each first common electrode group including at least one first common electrode, each first common electrode group being electrically connected with the touch integrated circuit;

wherein a direction in which touch electrodes in any touch electrode group are arranged is perpendicular to a direction in which first common electrodes in any first common electrode group are arranged, and the first common electrode group and the touch electrode group are configured to form mutual capacitance which changes when a finger acts on a touch panel including the array substrate.

10. The array substrate according to claim 9, characterized in that the touch electrode pattern includes a touch electrode lead pattern including at least one touch electrode lead;

each touch electrode group is electrically connected with the touch integrated circuit via a touch electrode lead.

11. The array substrate according to claim 10,

characterized in that the touch electrode lead pattern is a second common electrode pattern including at least one second common electrode having a shape of a bar;

each touch electrode group is electrically connected with the touch integrated circuit via a second common electrode.

12. The array substrate according to claim 9, wherein the array substrate further comprises:

a gate insulation layer formed on the substrate formed with the touch electrode pattern;

an active layer pattern formed on the substrate formed with the gate insulation layer;

a data line and a source and drain metal pattern formed on the substrate formed with the active layer pattern.

13. The array substrate according to claim 12, characterized in that the array substrate further includes a passivation layer formed on the substrate formed with the pixel electrode layer.

14. A method for driving the array substrate according to claim 9, comprising:

in a display period, loading, by the touch integrated circuit, a common electrode signal to the touch electrode and the first common electrode;

in a touch period, transmitting, by the touch electrode, an excitation signal under the control of the touch integrated circuit, and receiving, by the first common electrode, the excitation signal.

15. A touch panel, characterized by including the array substrate according to claim 9.

16. A display device, characterized by including the touch panel according to claim 15.

17. A method for driving the array substrate according to claim 10, comprising:

in a display period, loading, by the touch integrated circuit, a common electrode signal to the touch electrode and the first common electrode;

in a touch period, transmitting, by the touch electrode, an excitation signal under the control of the touch integrated circuit, and receiving, by the first common electrode, the excitation signal.

18. A touch panel, characterized by including the array substrate according to claim 10.

19. A display device, characterized by including the touch panel according to claim 18.

20. A method for driving the array substrate according to claim 11, comprising:

in a display period, loading, by the touch integrated circuit, a common electrode signal to the touch electrode and the first common electrode;

in a touch period, transmitting, by the touch electrode, an excitation signal under the control of the touch integrated circuit, and receiving, by the first common electrode, the excitation signal.