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LCD Panel testing method and equipment thereof

A technology of liquid crystal display panel and testing method, which is applied to optical testing flaws/defects, static indicators, etc., and can solve problems such as huge losses

Inactive Publication Date: 2008-12-03
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this test method tends to move LCD modules to areas with lower processing costs to set up factories. Therefore, if the LCD panel is found to be defective after the LCD module is lit and returned, the loss will be considerable. huge

Method used

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  • LCD Panel testing method and equipment thereof
  • LCD Panel testing method and equipment thereof
  • LCD Panel testing method and equipment thereof

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Embodiment Construction

[0040] The driving lighting test method of the liquid crystal display panel of the present invention is applicable to driving integrated circuits packaged in TAB (tape automatic bonding package) or COG (chip on glass package). Among them, please refer to image 3 To Figure 6, please refer to Figure 7 to Figure 9 .

[0041] According to a preferred embodiment of the present invention, the method for driving and lighting the TAB process panel comprises the following steps:

[0042] Get a conductive rubber with good conductivity, and cut it into strips according to the length of the positive electrode area and the common voltage area of ​​the single electrode area of ​​the liquid crystal display panel (step 1);

[0043] Fix the strip-cut conductors on the signal line electrode area and the scanning line electrode area, so that each signal line in the positive electrode area is in contact with each other (step 2);

[0044] Short-circuit the positive electrode area and the comm...

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Abstract

The present invention reveals LCD panel testing method and equipment. The testing process includes the following steps: cutting conducting rubber into strip fitting the length of positive electrode area and the shared voltage area of LCD panel; fixing the conducting strip in the signal line power supply area and scanning line electrode area to connect all the signal lines in the positive electrode area; short-circuiting the positive electrode area and the shared voltage area separately of all the signal lines and the scanning lines; and applying waveform signal from signal generator across the signal line power supply area and the scanning line electrode area and regulating the voltage magnitude to alter the grey of the LCD panel so as to show various faults in the LCD panel.

Description

technical field [0001] The present invention relates to a liquid crystal display panel testing method and its equipment, especially to a liquid crystal display panel driven and lit by using conductive rubber and an electrode supplier, without using a contact probe or forming a liquid crystal display module. A liquid crystal display panel testing method and equipment for screen discrimination, reliability experiment and analysis. Background technique [0002] Existing liquid crystal display panel test methods can generally be divided into two types, one is to use a contact probe (Probe Contact) to contact the electrode area (Lead) of the liquid crystal display panel (CELL), and then use the signal generator input signal to generate Drive; the other is the PCB lamination process of assembling the liquid crystal display panel to the liquid crystal display module (LCM) segment, and then use the input signal of the signal generator to generate the drive. [0003] Please refer to...

Claims

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Application Information

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IPC IPC(8): G02F1/133G01N21/88
Inventor 陈昭河金志明黄琼仪
Owner AU OPTRONICS CORP