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GIP type liquid crystal display panel and detecting method thereof

A technology of liquid crystal display panel and gate driver, which is used in instruments, static indicators, electronic circuit testing and other directions to achieve the effect of saving production materials

Inactive Publication Date: 2011-02-09
NANJING CEC PANDA LCD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]Although adopting the GIP architecture can save costs, the existing GIP technology can only carry out display inspection after the array project and box project to judge whether the GIP drive unit is Good, if there is a problem with the drive unit in the array project, it can only be checked after the box project, resulting in unnecessary waste of production materials

Method used

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  • GIP type liquid crystal display panel and detecting method thereof
  • GIP type liquid crystal display panel and detecting method thereof
  • GIP type liquid crystal display panel and detecting method thereof

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and typical embodiments.

[0038] image 3 It is a schematic diagram of the structure of a GIP type liquid crystal display panel of the present invention.

[0039] Please refer to image 3 , the in-screen gate driver of the present invention includes a plurality of cascaded shift registers SR(i), where i=1...n, n is a natural number. Among them, SR(1)˜SR(n-1) are shift registers for driving corresponding gate lines, and SR(n) is used as a dummy register. For each shift register SR(i), its input terminals include level signal terminals VGH and VGL, set signal terminal SET and clock signal terminal CKVO / CVKE, and output terminals include gate line output terminal GOUT, carry output Terminal COUT and reset terminal RESET.

[0040] The specific working principle is explained as follows: the SET terminal of each shift register receives the signal from the COUT terminal of ...

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Abstract

The invention relates to a GIP type liquid crystal display panel and a detecting method thereof. The liquid crystal display panel is integrated with a grid driver; the grid driver comprises a plurality of cascaded displacement registers; each displacement register comprises a setting input terminal, a clock signal input terminal, a level input terminal, a carry output terminal and a grid wire output terminal; wherein the first displacement register is provided with a setting input terminal lead, a clock signal input terminal lead and a level input terminal lead; each displacement register is provided a grid wire output terminal lead; the grid wire output terminal lead is connected with a TFT switch; the grid of the TFT switch is connected with a drive testing point CP; and a source electrode is connected with an output testing point TP. The GIP type liquid crystal display panel and the detecting method thereof check and test the GIP drive unit in an array engineering, thus avoiding a GIP drive unit with defects from entering a box forming engineering.

Description

technical field [0001] The invention relates to a liquid crystal display panel and a detection method thereof, in particular to a GIP type liquid crystal display panel with a gate driver in the screen and a detection method thereof. Background technique [0002] In the field of flat panel display, liquid crystal display devices have been widely used in terminal display devices of various sizes due to their characteristics of light weight, small size, and thin thickness. like figure 1 As shown, in general, a liquid crystal display panel includes a circuit driving module 11, a backlight module 12, a lower polarizer 13, a TFT (thin film transistor) lower substrate 14, a CF (color filter) upper substrate 16, and an upper polarizer 17, etc. Composition, the upper and lower two substrates 14 and 16 are filled with a liquid crystal molecular layer 15, the liquid crystal layer is deflected under the drive of an external electric field, and the deflection direction changes with th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/00G01R31/28G02F1/13
CPCH05K2201/10136H05K1/189
Inventor 丁婕琛朱修剑
Owner NANJING CEC PANDA LCD TECH
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