Liquid crystal panel and the detection method on image sticking of the liquid crystal panel

Patent metadata

Field	Value
Publication number	US-9888236-B2
Application number	US-201314440103-A
Country	US
Kind code	B2
Filing date	Dec 26, 2013
Priority date	Dec 20, 2013
Publication date	Feb 6, 2018
Grant date	Feb 6, 2018

Abstract

A liquid crystal panel comprises an end product area and a test area, wherein a RGB test block, a blank block and three monochrome blocks are provided in the test area, the monochrome blocks comprises a red test block, a green test block and a blue test block, the RGB test block is compounded with a red light resistance, a green light resistance and a blue light resistance, the electric resistance and the metal ionic concentration of the RGB test block is equal to that of the end product area, the electric resistance and the metal ionic concentration can be determine whether the related target parameters of the liquid crystal panel on the end product area will reach the standard or not. Detection method on image sticking of the liquid crystal panel, the detecting efficiency will be obviously improved and the defect rate will be reduced.

First claim

What is claimed is:

1. A detection method on image sticking of the liquid crystal panel, which comprising the following steps:
Step 1) dividing a test area on the liquid crystal panel, which is comprising the RGB test block, the blank block, the monochrome blocks, wherein the monochrome blocks comprise a red test block, a green test block and a blue test block;
Step 2) detecting the electric resistance and the metal ionic concentration of the RGB test block, the blank block, the monochrome blocks, if the target parameters are in the preset scope, then the detection result shows there is no appearing image sticking on the liquid crystal panel; if the target parameters are exceeding out of the preset scope, then the detection result shows there is appearing image sticking on the liquid crystal panel; and then go on step 3);
Step 3) detecting the target parameters of the blank block, if the target parameters are exceeding out of the preset scope, then the detection result shows the material of the present liquid crystal base is over proof.

2. The detection method on image sticking of the liquid crystal panel according to claim 1 , wherein in step 2), detecting the target parameters of the red test block, the green test block and the blue test block, if the target parameter of any test block is exceeding out of the preset scope, then the detection result shows the image sticking on the liquid crystal panel is exceeding out of the preset scope, and the name of the detected test block is outputted in the detection result.

3. The detection method on image sticking of the liquid crystal panel according to claim 2 , wherein in step 4) saving the detected electric resistance and the metal ionic concentration of each test block, so as to trace the effect factors on the image sticking and the quality of the liquid crystal panel.

4. A detection method on image sticking of the liquid crystal panel, which comprising the following steps:
Step 1) dividing a test area on the liquid crystal panel, which is comprising the RGB test block and the blank block;
Step 2) detecting the related target parameters of the RGB test block, if the target parameters are in the preset scope, then the detection result shows there is no appealing image sticking on the liquid crystal panel; if the target parameters are exceeding out of the preset scope, then the detection result shows there is appearing image sticking on the liquid crystal panel; and then go on step 3);
Step 3) detecting the target parameters of the blank block, if the target parameters are exceeding out of the preset scope, then the detection result shows the material of the present liquid crystal base is over proof.

5. The detection method on image sticking of the liquid crystal panel according to claim 4 , wherein the target parameters are the electric resistance and the metal ionic concentration of the RGB test block.

6. The detection method on image sticking of the liquid crystal panel according to claim 4 , wherein in step 1) the test block is further comprising three monochrome blocks which separately are the red test block, the green test block and the blue test block.

7. The detection method on image sticking of the liquid crystal panel according to claim 5 , wherein in step 2), detecting the target parameters of the red test block, the green test block and the blue test block in proper order, if the target parameter of any test block is exceeding out of the preset scope, then the detection result shows the image sticking on the liquid crystal panel is exceeding out of the preset scope, and the name of the detected test block is outputted in the detection result.

8. The detection method on image sticking of the liquid crystal panel according to claim 5 , wherein in step 4) saving the detected electric resistance and the metal ionic concentration of each test block, so as to trace the effect factors on the image sticking and the quality of the liquid crystal panel.

Assignees

• Shenzhen China Star Optoelect
• Shenzhen China Star Optoelect

Inventors

• Zhang Yueyan
• Yang Yi Feng
• Lee Chien Pang

Classifications

• H04N17/02 Primary

  for colour television signals · CPC title

• G02F2203/69

  Arrangements or methods for testing or calibrating a device · CPC title

• G02F1/1309 Primary

  Repairing; Testing · CPC title