Method for detecting crosstalk of liquid crystal display panel
A liquid crystal display panel, technology to be detected, used in static indicators, instruments, nonlinear optics, etc., and can solve problems such as undetectable, poor cross-talk, etc.
Inactive Publication Date: 2012-08-08
BOE TECH GRP CO LTD +1
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[0004] Although the above detection method can be used to detect the poor crosstalk of some liquid crystal display panels, for some special cases (such as: design changes, changes in process conditions or changes in raw materials, etc.) caused by poor crosstalk, that is, special crosstalk bad condition, and cannot be detected
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0021] An embodiment of the present invention provides a method for detecting crosstalk of a liquid crystal display panel, including:
[0022] Inputting signals to the gate lines and data lines of the liquid crystal display panel to be tested respectively, so that the liquid crystal display panel to be tested presents a detection picture;
[0023] refer to figure 1 or figure 2 , the gray value of all pixels in the middle area 10 of the detection picture 10...
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Abstract
The invention discloses a method for detecting crosstalk of a liquid crystal display panel and relates to the field of detection of the liquid crystal display panel. The method is used for detecting the adverse condition of crosstalk of the liquid crystal display panel. The method for detecting crosstalk of the liquid crystal display panel comprises the step of inputting signals to a grid line and a data line of the liquid crystal display panel to be detected, so that the liquid crystal display panel to be detected takes on the detection image, wherein the gray value of all the pixels of the detection image in the middle region is 0; the gray value of all the pixels of a first pixel group in other regions is the same; the color and the gray value of all the pixels of a second pixel group are the same; the gray value of all the pixels of the second pixel group is different from that of all the pixels of the first pixel group; the first pixel group and the second pixel group have the consistent shape; and the first pixel group and the second pixel group are distributed at intervals in the transverse and longitudinal direction of other regions. The scheme of the invention is suitable for detecting whether crosstalk exists in the liquid crystal display panel or not.
Description
technical field [0001] The invention relates to the detection field of liquid crystal display panels, in particular to a method for detecting crosstalk of liquid crystal display panels. Background technique [0002] In the process of producing TFT-LCD (Thin Film Transistor-Liquid Crystal Display, Thin Film Transistor-Liquid Crystal Display), the detection of crosstalk is a very important link. Only the products that pass the inspection can leave the factory. (that is, poor display caused by crosstalk), it is necessary to improve the design or process until the phenomenon of bad crosstalk is eliminated or weakened. [0003] In the prior art, in the process of detecting the crosstalk (Crosstalk) of the liquid crystal display panel, such as image 3 As shown in FIG. 2 , in a common detection pattern (Pattern), the gray value of all pixels in the middle area is generally 0 (ie, black L0 ), and the color and gray value of all pixels in other areas are the same. If the liquid cry...
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IPC IPC(8): G02F1/13G02F1/1362
CPCG02F1/13G02F1/1362G09G3/3611G09G2320/0209G02F1/1309G09G3/006
Inventor 李武求魏炎
Owner BOE TECH GRP CO LTD