Color filter substrate, display panel and display device

Patent metadata

Field	Value
Publication number	US-9329427-B2
Application number	US-201414304784-A
Country	US
Kind code	B2
Filing date	Jun 13, 2014
Priority date	Jan 29, 2014
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

A color filter substrate, a display panel and a display device are provided. The color filter substrate includes a first substrate, a black matrix layer located on the first substrate, and an electrostatic discharge wire layer located on the black matrix layer and connected to the black matrix layer. In the color filter substrate, the display panel and the display device, the electrostatic discharge wire layer is arranged on the black matrix layer of the color filter substrate. Hence, static electricity in the color filter substrate is discharged via the electrostatic discharge wire layer, and accordingly, the static electricity may not be accumulated in the color filter substrate, thereby improving the quality and performance of a display.

First claim

What is claimed is:

1. A display panel, comprising:
a color filter substrate, wherein the color filter substrate comprises:
a first substrate,
a black matrix layer located on the first substrate, and
an electrostatic discharge wire layer located on the black matrix layer and connected to the black matrix layer;

a TFT array substrate arranged facing the color filter substrate, wherein the TFT array substrate comprises a second substrate and a grounding wire located in a non-display area of the TFT array substrate; and
a junction layer arranged between the TFT array substrate and the color filter substrate, wherein the junction layer is connected to the electrostatic discharge wire layer; and
wherein the electrostatic discharge wire layer is electrically connected to the grounding wire via the junction layer, and at least one end of the grounding wire is connected to a testing terminal located on a step of the TFT array substrate, the testing terminal providing a connection interface fit for a test fixture for testing a display performance of the display panel.

2. The display panel according to claim 1 , wherein a location of the grounding wire on the second substrate matches a location of a portion of the electrostatic discharge wires layer in the non-display area of the TFT array substrate.

3. The display panel according to claim 2 , wherein the TFT array substrate further comprises:
a conductive layer located on the second substrate,
a gate insulating layer located on the second substrate, and
a passivation layer located on the gate insulating layer;
wherein the grounding wire is located in the conductive layer.

4. A display device comprising a display panel, wherein the display panel comprises:
a color filter substrate, wherein the color filter substrate comprises:
a first substrate,
a black matrix layer located on the first substrate, and
an electrostatic discharge wire layer located on the black matrix layer and connected to the black matrix layer;

a TFT array substrate arranged facing the color filter substrate, wherein the TFT array substrate comprises a second substrate and a grounding wire located in a non-display area of the TFT array substrate; and
a junction layer arranged between the TFT array substrate and the color filter substrate, wherein the junction layer is connected to the electrostatic discharge wire layer; and
wherein the electrostatic discharge wire layer is electrically connected to the grounding wire via the junction layer, and at least one end of the grounding wire is connected to a testing terminal located on a step of the TFT array substrate, the testing terminal providing a connection interface fit for a test fixture for testing a display performance of the display panel.

5. The display device according to claim 4 , further comprising an iron frame, wherein the electrostatic discharge wire layer is connected to the iron frame to discharge static electricity.

Assignees

• Shanghai Tianma Micro Elect Co
• Tianma Micro Electronics Co Ltd

Inventors

• Lou Tenggang

Classifications

• G02B5/201

  in the form of arrays · CPC title

• G02F1/136204

  Arrangements to prevent high voltage or static electricity failures · CPC title

• G02F2202/22

  Antistatic materials or arrangements · CPC title

• G02B2207/121

  Antistatic or EM shielding layer · CPC title

• G02F1/133512 Primary

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title