Touch display panel and display device

Patent metadata

Field	Value
Publication number	US-9304349-B2
Application number	US-201313967487-A
Country	US
Kind code	B2
Filing date	Aug 15, 2013
Priority date	Aug 31, 2012
Publication date	Apr 5, 2016
Grant date	Apr 5, 2016

Abstract

The disclosure of the present invention discloses a touch display panel. The touch display panel comprises a color filter substrate, an array substrate, a liquid crystal layer and a touch sensing film positioned at a side of the color filter substrate which is away from the liquid crystal layer, wherein the color filter substrate comprises a substrate and a black matrix provided with a plurality of opening areas which are in array distribution; the touch sensing film comprises a substrate, one side of the substrate is provided with a plurality of first electrodes, the other side surface of the substrate is provided with a plurality of second electrodes, the projections of the first electrodes and the second electrodes on the color filter substrate are intersected with each other, the first electrodes are color filter electrodes, and the projections on the color filter substrate are opposite to the opening areas.

First claim

What is claimed is:

1. A touch display panel, comprising:
a color filter substrate; an array substrate opposite to the color filter substrate; a liquid crystal layer positioned between the color filter substrate and the array substrate; and a touch sensing film positioned at a side of the color filter substrate which is away from the liquid crystal layer;
wherein the color filter substrate comprises a first substrate and a black matrix provided on the first substrate, and the black matrix is provided with a plurality of opening areas which are in array distribution;
the touch sensing film comprises a second substrate, one side of the second substrate is provided with a plurality of first electrodes in parallel with each other and each having a strip-like structure, the other side of the second substrate is provided with a plurality of second electrodes in parallel with each other and each having a strip-like structure, the projections of the first electrodes and the second electrodes on the color filter substrate are intersected with each other, the first electrodes are color filter electrodes with color filtering function, and the projections of the first electrodes on the color filter substrate are opposite to the opening areas which are in array distribution.

2. The touch display panel according to claim 1 , wherein the projections of the first electrodes on the color filter substrate are perpendicular to the projections of the second electrodes on the color filter substrate.

3. The touch display panel according to claim 1 , wherein the first electrodes are drive electrodes and the second electrodes are induction electrodes.

4. The touch display panel according to claim 1 , wherein the first electrodes are induction electrodes and the second electrodes are drive electrodes.

5. The touch display panel according to claim 1 , wherein the first electrodes comprise at least a red color filter electrode, a green color filter electrode, and a blue color filter electrode, and the color filter electrodes with various colors are provided alternatively in turn.

6. The touch display panel according to claim 1 , wherein a first electrode protective layer is provided on the outside of the first electrode, and a second electrode protective layer is provided on the outside of the second electrode.

7. The touch display panel according to claim 6 , wherein a surface protective layer of the touch display panel is provided on a side of the touch sensing film which is away from the color filter substrate.

8. The touch display panel according to claim 7 , wherein the first electrodes are closer to the color filter substrate in comparison with the second electrodes.

9. The touch display panel according to claim 7 , wherein the second electrodes are closer to the color filter substrate in comparison with the first electrodes.

10. A display device comprising the touch display panel according to claim 1 .

Assignees

• Beijing Boe Optoelectronics

Inventors

• Wang Shijun

Classifications

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F3/044

  by capacitive means · CPC title

• G02F1/13338 Primary

  Input devices, e.g. touch panels · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F3/0446 Primary

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title