Array substrate, display panel, display device and method of repairing display panel

Patent metadata

Field	Value
Publication number	US-9880434-B2
Application number	US-201514891841-A
Country	US
Kind code	B2
Filing date	Jul 10, 2015
Priority date	Sep 28, 2014
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

An array substrate, a display panel, a display device and a method of repairing a display panel are provided. The array substrate includes a functional layer and a photochromic layer disposed on the functional layer, and upon the array substrate suffering from light leakage, the photochromic layer in a light leakage area is irradiated by light to form a light blocking part in the light leakage area, thereby repairing light leakage of the array substrate.

First claim

The invention claimed is:

1. An array substrate, comprising a functional layer and a photochromic layer, wherein the photochromic layer is disposed on the functional layer, and upon the array substrate suffering from light leakage, and the photochromic layer in a light leakage area can be irradiated by light to form a light blocking part in the light leakage area;
wherein the pixel electrode layer and the photochromic layer are coated with a photometric alignment layer.

2. The array substrate according to claim 1 , wherein the photochromic layer is disposed on an outmost surface of the functional layer.

3. The array substrate according to claim 2 , wherein the functional layer is disposed on a base substrate and comprises one or more of a pixel electrode layer, an insulating layer, a data line layer, a gate insulating layer and a gate layer disposed sequentially in a direction from a position away from the base substrate towards a position near to the base substrate.

4. The array substrate according to claim 3 , wherein the photochromic layer is disposed on an outer surface of the pixel electrode layer.

5. The array substrate according to claim 1 , wherein the photochromic layer is composed of an organic photochromic material.

6. The array substrate according to claim 5 , wherein the organic photochromic material comprises diary ethenes, spiro thiopyrans, spirooxazines, fulgides and derivatives thereof.

7. A display panel, comprising the array substrate according to claim 1 .

8. The display panel according to claim 7 , wherein the display panel further comprises a substrate cell-assembled to the array substrate, and upon the array substrate suffering from light leakage, and the light leakage area of the photochromic layer can be irradiated by light to form a light blocking part in the light leakage area.

9. A method of repairing a display panel comprising the array substrate according to claim 1 , the method comprising:
irradiating the light leakage area of the photochromic layer with light to turn the light leakage area into the light blocking part.

10. The method of repairing a display panel according to claim 9 , wherein the light is ultra-violet light.

11. The array substrate according to claim 2 , wherein the photochromic layer is composed of an organic photochromic material.

12. The array substrate according to claim 3 , wherein the photochromic layer is composed of an organic photochromic material.

13. A display device, comprising the display panel according to claim 8 .

Assignees

• Boe Technology Group Co Ltd
• Chengdu Boe Optoelect Tech Co

Inventors

• Yan Shaning
• Shi Bo

Classifications

• G02F2201/123

  pixel · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• G02F1/136259

  Repairing; Defects · CPC title

• G02F2202/02

  organic material · CPC title

• G02F2202/14

  photochromic · CPC title