A Liquid Crystal Panel and The Detection Method On Image Sticking Of The Liquid Crystal Panel

Patent metadata

Field	Value
Publication number	US-2016286211-A1
Application number	US-201314440103-A
Country	US
Kind code	A1
Filing date	Dec 26, 2013
Priority date	Dec 20, 2013
Publication date	Sep 29, 2016
Grant date	—

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 liquid crystal panel, comprising 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 liquid crystal panel on the end product area, the electric resistance and the metal ionic concentration of the RGB test block can be detected to determine whether the related target parameters of the liquid crystal panel on the end product area will reach the standard or not.

2 . The liquid crystal panel according to claim 1 , wherein the length of the RGB test block, the blank block, the red test block, the green test block and the blue test block is separated larger than 5 mm, and the width of each test block is separated larger than 3 mm.

3 . The liquid crystal panel according to claim 1 , wherein the test area is located at any side of the end product area, the RGB test block, the blank block, the red test block, the green test block and the blue test block are align on a line.

4 . A detection method on image sticking of the liquid crystal panel, comprising the following steps of:
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); and 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 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.

6 . 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.

7 . A liquid crystal panel, comprising an end product area and a test area, wherein a RGB test block and a blank block are provided in the test area, 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 liquid crystal panel on the end product area, the electric resistance and the metal ionic concentration of the RGB test block can be detected to determine whether the related target parameters of the liquid crystal panel on the end product area will reach the standard or not.

8 . The liquid crystal panel according to claim 7 , wherein the test block further comprises three monochrome blocks in the test area which are a red test block, a green test block and a blue test block.

9 . The liquid crystal panel according to claim 7 , wherein the length of the RGB test block, the blank block, the red test block, the green test block and the blue test block is separated larger than 5 mm, and the width of each test block is separated larger than 3 mm.

10 . The liquid crystal panel according to claim 7 , wherein the test area is located at any side of the end product area, the RGB test block, the blank block, the red test block, the green test block and the blue test block are align on a line.

11 . A detection method on image sticking of the liquid crystal panel, comprising the following steps of:
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 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); and 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.

12 . The detection method on image sticking of the liquid crystal panel according to claim 11 , wherein the target parameters are the electric resistance and the metal ionic concentration of the RGB test block.

13 . The detection method on image sticking of the liquid crystal panel according to claim 11 , wherein in step 1) the test block further comprises three monochrome blocks which separately are the red test block, the green test block and the blue test block.

14 . The detection method on image sticking of the liquid crystal panel according to claim 12 , 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.

15 . The detection method on image sticking of the liquid crystal panel according to claim 12 , 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

Inventors

• Zhang Yueyan
• Yang Yi Feng
• Lee Chien-Pang

Classifications

• H04N17/02 Primary

  for colour television signals · CPC title

• G02F1/1309 Primary

  Repairing; Testing · CPC title

• G02F2203/69

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