ARRAY SUBSTRATE, IN-CELL TOUCH PANEL AND DISPLAY DEVICE

• US 20160259460A1
• Filed: 12/16/2013
• Published: 09/08/2016
• Est. Priority Date: 07/26/2013
• 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: YANG, Shengji, DONG, Xue, WANG, Haisheng
• Granted Patent: US 10,635,221 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/136209 Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
• CPC Class Codes: G02F 1/136222 Colour filters incorporated in the active matrix substrate
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• 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 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• 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: 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
• CPC Class Codes: G09G 3/3677 suitable for active matrices only
• CPC Class Codes: G09G 3/3688 suitable for active matrices only

Abstract

An array substrate includes: a plurality of sub-pixel units arranged in an array, in which every two adjacent rows of the sub-pixel units form one sub-pixel-unit group, and two gate lines that are configured to respectively provide gate signals for the two rows of the sub-pixel units are disposed between the two rows of the sub-pixel units; a plurality of touch driving electrodes, disposed between the sub-pixel-unit groups that are provided on the array substrate, and arranged in a row direction of the sub-pixel units; and a plurality of touch sensing electrodes, disposed on the array substrate, arranged in a column direction of the sub-pixel units, and insulated from the touch driving electrodes and the gate lines.

Claims

1. An array substrate, comprising:

a plurality of sub-pixel units arranged in an array, wherein every two adjacent rows of the sub-pixel units form one sub-pixel-unit group, and two gate lines that are configured to respectively provide gate signals for the two rows of the sub-pixel units are disposed between the two rows of the sub-pixel units;

a plurality of touch driving electrodes, disposed between the sub-pixel-unit groups that are provided on the array substrate, and arranged in a row direction of the sub-pixel units; and

a plurality of touch sensing electrodes, disposed on the array substrate, arranged in a column direction of the sub-pixel units, and insulated from the touch driving electrodes and the gate lines.

2. The array substrate as claimed in claim 1, wherein the touch sensing electrodes are disposed above the touch driving electrodes, and the touch sensing electrodes act as common sub-electrodes that form common electrodes in a touch control period.

3. The array substrate as claimed in claim 1, wherein a plurality of openings with a predetermined size is formed in regions where each of the touch sensing electrodes overlaps the touch driving electrodes.

4. The array substrate as claimed in claim 1, further comprising metal lines disposed below each of the touch sensing electrodes and connected with the touch sensing electrodes by via holes.

5. The array substrate as claimed in claim 2, further comprising common electrode signal lines each disposed between two of the adjacent sub-pixel-unit groups, arranged in a row direction of the sub-pixel units, and connected with respective common sub-electrodes by via holes.

6. The array substrate as claimed in claim 5, wherein the gate ones, the metal lines, the common electrode signal lines and the touch driving electrodes are disposed in a same layer.

7. The array substrate as claimed in claim 5, wherein the touch driving electrodes and the common electrode signal lines are disposed alternately.

8. The array substrate as claimed in claim 1, wherein the touch driving electrodes comprises a plurality of touch driving sub-electrodes that are arranged in a row direction, the touch driving sub-electrodes are each disposed between adjacent two of the sub-pixel-unit groups, and the touch driving sub-electrodes are connected with each other in a parallel connection.

9. An in-cell touch panel, comprising an opposite substrate and an array substrate that are disposed opposite to each other, and a liquid crystal layer disposed between the opposite substrate and the array substrate;

wherein the array substrate is the array substrate as claimed in claim 1.

10. The in-cell touch panel as claimed in claim 9, wherein the opposite substrate comprises a color filer substrate.

11. A display device, comprising the in-cell touch panel as claimed in claim 9.

12. The array substrate as claimed in claim 2, wherein a plurality of openings with a predetermined size is formed in regions where each of the touch sensing electrodes overlaps the touch driving electrodes.

13. The array substrate as claimed in claim 2, further comprising metal lines disposed below each of the touch sensing electrodes and connected with the touch sensing electrodes by via holes.

14. The array substrate as claimed in claim 3, further comprising metal lines disposed below each of the touch sensing electrodes and connected with the touch sensing electrodes by via holes.

15. The array substrate as claimed in claim 6, wherein the touch driving electrodes and the common electrode signal lines are disposed alternately.

16. The array substrate as claimed in claim 2, wherein the touch driving electrodes comprises a plurality of touch driving sub-electrodes that are arranged in a row direction, the touch driving sub-electrodes are each disposed between adjacent two of the sub-pixel-unit groups, and the touch driving sub-electrodes are connected with each other in a parallel connection.

17. The array substrate as claimed in claim 3, wherein the touch driving electrodes comprises a plurality of touch driving sub-electrodes that are arranged in a row direction, the touch driving sub-electrodes are each disposed between adjacent two of the sub-pixel-unit groups, and the touch driving sub-electrodes are connected with each other in a parallel connection.

18. The array substrate as claimed in claim 4, wherein the touch driving electrodes comprises a plurality of touch driving sub-electrodes that are arranged in a row direction, the touch driving sub-electrodes are each disposed between adjacent two of the sub-pixel-unit groups, and the touch driving sub-electrodes are connected with each other in a parallel connection.

19. The array substrate as claimed in claim 6, wherein the touch driving electrodes comprises a plurality of touch driving sub-electrodes that are arranged in a row direction, the touch driving sub-electrodes are each disposed between adjacent two of the sub-pixel-unit groups, and the touch driving sub-electrodes are connected with each other in a parallel connection.

20. The array substrate as claimed in claim 6, wherein the touch driving electrodes comprises a plurality of touch driving sub-electrodes that are arranged in a row direction, the touch driving sub-electrodes are each disposed between adjacent two of the sub-pixel-unit groups, and the touch driving sub-electrodes are connected with each other in a parallel connection.