COLOR FILTER SUBSTRATE, MANUFACTURING METHOD THEREOF, TOUCH SCREEN AND DISPLAY DEVICE

• US 20160188070A1
• Filed: 06/18/2013
• Published: 06/30/2016
• Est. Priority Date: 03/26/2013
• Status: Abandoned Application

• Current Assignee: BOE Technology Group Co., Ltd., Chengdu BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd., Chengdu BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Inventors: NAN, Yingying, KO, Young Yik, HUANG, Weiyun
• Application Number:
  US14/344,563
• Publication Number:
  US 20160188070A1
• 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 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/133514 Colour filters
• 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 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• 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

Abstract

A color filter substrate, a manufacturing method thereof, a touch screen and a display device are provided, and the display screen including the color filter substrate can achieve the touch function. The color filter substrate includes: a transparent substrate and a color filter film layer disposed on the transparent substrate, the color filter film layer includes a plurality of filter elements, a plurality of first sensing electrodes and a plurality of second sensing electrodes; and the first sensing electrodes are insulated from the second sensing electrodes, in which the first sensing electrodes are insulated from the second sensing electrodes at crossed positions by portions of the color filter film layer, disposed at the crossed positions of the first sensing electrodes and the second sensing electrodes, and a touch sensing capacitor is provided.

Claims

1. A color filter substrate, comprising:

a transparent substrate and a color filter film layer disposed on the transparent substrate, wherein the color filter film layer includes a plurality of filter elements, a plurality of first sensing electrodes and a plurality of second sensing electrodes; and

the first sensing electrodes are insulated from the second sensing electrodes, and

wherein the first sensing electrodes are insulated from the second sensing electrodes at crossed positions by portions of the color filter film layer, disposed at the crossed positions of the first sensing electrodes and the second sensing electrodes, and a touch sensing capacitor is provided.

2. The color filter substrate according to claim 1, wherein a plurality of the first sensing electrodes are arranged in a plurality of rows along a first direction;

and a plurality of the second sensing electrodes are arranged in a plurality of rows along a second direction.

3. The color filter substrate according to claim 2, wherein the first direction is perpendicular to the second direction.

4. The color filter substrate according to claim 1, wherein the first sensing electrode includes:

first sensing units and first connecting lines, in which the first sensing units of a same first sensing electrode are electrically connected with each other through the first connecting lines; and

the second sensing electrode includes;

second sensing units and second connecting lines, in which the second sensing units of a same second sensing electrode are electrically connected with each other through the second connecting lines.

5. The color filter substrate according to claim 4, wherein the first sensing units, the second sensing units and the second connecting lines are arranged on a same layer;

the first sensing units are insulated from the second sensing units and the second connecting lines;

the first connecting lines and the first sensing units are arranged on different layers;

the color filter film layer is disposed between the first connecting lines and the first sensing units;

through holes are formed in the color filter film layer; and

the first sensing units of a same first sensing electrode are electrically connected with the first connecting lines via the through holes.

6. The color filter substrate according to claim 5, wherein the first connecting lines are in the shape of black strips and disposed at connected positions of the filter elements of the color filter film layer.

7. The color filter substrate according to claim 6, further comprising black strips which are intersected with the first connecting lines, wherein the black strips are disposed at the connected positions of the filter elements of the color filter film layer and insulated from the first connecting lines.

8. The color filter substrate according to claim 4, wherein the first sensing units and the first connecting lines are arranged on a same layer;

the second sensing units and the second connecting lines are arranged on a same layer;

the first sensing units and the second sensing units are arranged on different layers; and

the color filter film layer is disposed between the first sensing electrodes and the second sensing electrodes, so that the first sensing electrodes are insulated from the second sensing electrodes.

9. The color filter substrate according to claim 8, further comprising a black matrix (BM) layer disposed between the color filter film layer and the transparent substrate, in which the BM layer includes BMs which are disposed at the connected positions of the filter elements of the color filter film layer.

10. The color filter substrate according to claim 1, further comprising a planarization layer, wherein the color filter film layer, the first sensing electrodes and the second sensing electrodes are disposed between the planarization layer and the transparent substrate.

11. The color filter substrate according to claim 10, further comprising a transparent conductive layer, wherein the planarization layer is disposed between the transparent conductive layer and the transparent substrate.

12. The color filter substrate according to claim 11, wherein the transparent conductive layer is grounded.

13. The color filter substrate according to claim 11, further comprising an insulating layer, wherein the transparent conductive layer is disposed between the insulating layer and the transparent substrate.

14. A touch screen, comprising the color filter substrate according to claim 1.

15. The touch screen according to claim 14, further comprising:

an array substrate and drive circuits which are connected with the first sensing electrodes and the second sensing electrodes and configured to control the first sensing electrodes and the second sensing electrodes, wherein the driving circuits are arranged together with a drive circuit on the array substrate.

16. A display device, comprising the touch screen according to claim 14.

17. A method for manufacturing a color filter substrate, comprising:

providing first connecting lines on a transparent substrate, in which the first connecting lines are configured to electrically connect first sensing units of a same first sensing electrode;

providing a color filter film layer on the transparent substrate, in which the color filter film layer includes a plurality of closely connected filter elements, and through holes are formed in the color filter film layer; and

providing the first sensing units, second sensing units and second connecting lines on the transparent substrate, in which the first sensing units are electrically connected with the first connecting lines via the through holes in the color filter film layer;

the second connecting lines are configured to electrically connect the second sensing units of a same second sensing electrode; and

the first sensing units are insulated from the second sensing units and the second connecting lines.

18. The method for manufacturing the color filter substrate according to claim 17, wherein the first connecting lines are in the shape of black strips and disposed at connected positions of the filter elements of the color filter film layer.

19. The method for manufacturing the color filter substrate according to claim 18, further comprising:

providing black strips which are intersected with the first connecting lines on the transparent substrate, in which the black strips are disposed at the connected positions of the filter elements of the color filter film layer and insulated from the first connecting lines.

20. The method for manufacturing the color filter substrate according to claim 17, further comprising:

providing a planarization layer on the transparent substrate, in which the color filter film layer, the first sensing electrodes and the second sensing electrodes are disposed between the planarization layer and the transparent substrate.

21. The method for manufacturing the color filter substrate according to claim 20, further comprising:

providing a transparent conductive layer on the transparent substrate, in which the planarization layer is disposed between the transparent conductive layer and the transparent substrate.

22. The method for manufacturing the color filter substrate according to claim 21, further comprising:

providing an insulating layer on the transparent substrate, in which the transparent conductive layer is disposed between the insulating layer and the transparent substrate.

23. A method for manufacturing a color filter substrate, comprising:

providing first sensing units and first connecting lines on a transparent substrate, in which the first connecting lines are configured to electrically connect the first sensing units of a same first sensing electrode;

providing a color filter film layer on the transparent substrate, in which the color filter film layer includes a plurality of closely connected filter elements; and

providing second sensing units and second connecting lines on the transparent substrate, in which the second connecting lines are configured to electrically connect the second sensing units of a same second sensing electrode.

24. The method for manufacturing the color filter substrate according to claim 23, before providing the first sensing units and the first connecting lines on the transparent substrate, further comprising:

providing a BM layer on the transparent substrate, in which the BM layer includes BMs which are disposed at connected positions of the filter elements of the color filter film layer.

25. The method for manufacturing the color filter substrate according to claim 23, further comprising:

providing a planarization layer on the transparent substrate, in which the color filter film layer, the first sensing electrodes and the second sensing electrodes are disposed between the planarization layer and the transparent substrate.

26. The method for manufacturing the color filter substrate according to claim 25, further comprising:

providing a transparent conductive layer on the transparent substrate, in which the planarization layer is disposed between the transparent conductive layer and the transparent substrate.

27. The method for manufacturing the color filter substrate according to claim 26, further comprising:

providing an insulating layer on the transparent substrate, in which the transparent conductive layer is disposed between the insulating layer and the transparent substrate.