Embedded capacitive touch display panel and embedded capacitive touch display device

Patent metadata

Field	Value
Publication number	US-9436327-B2
Application number	US-201414284279-A
Country	US
Kind code	B2
Filing date	May 21, 2014
Priority date	Jul 30, 2013
Publication date	Sep 6, 2016
Grant date	Sep 6, 2016

Abstract

An embedded capacitive touch display panel is disclosed. The display panel includes a first transparent substrate, and a grid-shaped metal conductive layer formed on the first transparent substrate. The grid-shaped metal conductive layer includes first metal electrodes extending in a first direction, and second metal electrodes extending in a direction intersecting the first direction. Each of the second metal electrodes is divided into multiple sections by openings, through which the first metal electrodes extend. In addition, the first and second metal electrodes are separated from each other by gaps. The display panel also includes a color filter layer, including a plurality of red, green, and blue color resist units, and a green color resist bar. The gaps include a first gap part, parallel to the green color resist bar, where the first gap part is not overlapped by the green color resist bar.

First claim

What is claimed is:

1. An embedded capacitive touch display panel, comprising:
a first transparent substrate;
a grid-shaped metal conductive layer formed on the first transparent substrate, wherein the grid-shaped metal conductive layer comprises:
a plurality of first metal electrodes extending in a first direction, and
a plurality of second metal electrodes extending in a direction which intersects the first direction,
wherein each of the second metal electrodes is divided into multiple sections by a plurality of openings, through which the first metal electrodes extend, and
wherein the first metal electrodes and the second metal electrodes are separated from each other by a plurality of gaps; and

a color filter layer, comprising:
a plurality of red color resist units,
a plurality of green color resist units,
a plurality of blue color resist units, and
a green color resist bar, comprising a plurality of adjacent green color resist units

wherein the gaps comprise a first gap part, parallel to the green color resist bar, and wherein the first gap part is not overlapped by the green color resist bar.

2. The embedded capacitive touch display panel of claim 1 , wherein the color filter layer further comprises a red color resist bar and a blue color resist bar, wherein the green color resist bar, the red color resist bar, and the blue color resist bar are substantially parallel.

3. The embedded capacitive touch display panel of claim 1 , wherein the gaps further comprise a second gap part, wherein the second gap part is substantially perpendicular to the green color resist bar, the red color resist bar, and the blue color resist bar.

4. The embedded capacitive touch display panel of claim 1 , further comprising:
a second substrate arranged opposite to the first transparent substrate; and
a pixel element array formed on the second substrate, wherein each pixel element of the pixel element array is correspondingly provided with a TFT, wherein a light-shading structure is not provided at one side of each TFT away from the second substrate.

5. The embedded capacitive touch display panel of claim 4 , wherein each pixel element corresponds to one color resist unit, wherein a portion of the color resist units are surrounded by the grid-shaped metal conductive layer, and wherein the TFTs in the pixel elements surrounded by the grid-shaped metal conductive layer are shielded by the grid-shaped metal conductive layer.

6. The embedded capacitive touch display panel of claim 1 , further comprising:
a conductive bridging layer, wherein the sections of the second metal electrode are connected together by the conductive bridging layer.

7. The embedded capacitive touch display panel of claim 6 , wherein the color filter layer is arranged between the grid-shaped metal conductive layer and the conductive bridging layer, wherein the color filter layer comprises a plurality of via holes, and wherein the sections of the second metal electrode are connected together by the conductive bridging layer through the via holes.

8. The embedded capacitive touch display panel of claim 1 , wherein at least one of:
a) the first gap part is arranged corresponding to the red color resist bar; and
b) the first gap part is arranged corresponding to the blue color resist bar.

9. The embedded capacitive touch display panel of claim 1 , further comprising a black matrix layer formed on the first transparent substrate, wherein the grid-shaped metal conductive layer is shielded by the black matrix layer.

10. The embedded capacitive touch display panel of claim 1 , wherein one of:
a) the first metal electrodes are sensing electrodes, and the second metal electrodes are driving electrodes; and
b) the first metal electrodes are driving electrodes, and the second metal electrodes are sensing electrodes.

11. An embedded capacitive touch display device, comprising the embedded capacitive touch display panel of claim 1 .

Assignees

• Shanghai Tianma Microelectronics Co Ltd
• Tianma Microelectronics Co Ltd

Inventors

• Zhou Xingyao
• Yao Qijun
• Chen Hao
• Ma Jun

Classifications

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title

• G06F2203/04107

  Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds · CPC title

• G02F1/133514

  Colour filters · CPC title

• G02F2201/124

  interdigital · CPC title

• G06F2203/04111

  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 title