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Liquid crystal display panel repair method and repair system

A liquid crystal display panel and repair method technology, applied in the direction of nonlinear optics, instruments, optics, etc., can solve the problems of inability to achieve selective deposition of micro-regions, slow heating and cooling rates, structural damage, etc., to achieve environmental protection and manufacturing process Simple, Enhanced Restorative Effects

Inactive Publication Date: 2014-04-23
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology

The heating method that generates high temperature generally uses resistance wire heating, but the heating and cooling rate of this method is slow, and the entire substrate is under high temperature, which cannot achieve selective deposition of micro-regions. If this method is used to repair defects in TFT-LCD, damage to many structures

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  • Liquid crystal display panel repair method and repair system
  • Liquid crystal display panel repair method and repair system
  • Liquid crystal display panel repair method and repair system

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Embodiment Construction

[0029] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0030] see figure 1 , the invention provides a repair method for a liquid crystal display panel, comprising the following steps:

[0031] Step 1. Provide a liquid crystal display panel, and the circuit on the liquid crystal display panel has an open circuit.

[0032] Step 2, forming graphene on the liquid crystal display panel by laser chemical vapor deposition to connect the open circuit.

[0033] In the present invention, graphene replaces the existing chromium or tungsten and deposits it at the open circuit position to repair defects. Since graphene has more excellent charge and heat transmission capabilities and excellent ductility, it solves the problem of chromium or tungsten repair due to thermal stress. Repair the defective defect, i...

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Abstract

The invention provides a liquid crystal display panel repair method and repair system. The method includes the steps: firstly, providing a liquid crystal display panel with a broken circuit; secondly, forming graphene on the liquid crystal display panel by laser chemical vapor deposition to communicate the broken circuit. According to the liquid crystal display panel repair method and repair system, the graphene is formed at the broken circuit by laser chemical vapor deposition to repair the broken circuit, manufacture procedures are simple, repair effects are fine, common gases such as methane serve as carbon source gases, environmental protection is facilitated, the number of layers of the graphene can be controlled by controlling laser irradiation, the conductivity of the graphene is further controlled, and the repair effects are improved. Besides, the spot radius of laser can be adjusted, the resolution ratio of a graphene growth line can be controlled, a laser light path is adjusted, spots can be used for heating a broken circuit area according to a set path, and the needed graphene line or shape is deposited.

Description

technical field [0001] The invention relates to the field of flat display, in particular to a repair method and a repair system for a liquid crystal display panel. Background technique [0002] Thin film transistor (TFT) array is the key structure of active matrix liquid crystal display (TFT-LCD), so the quality of TFT matrix is ​​very important to the quality of TFT-LCD. However, the array (Array) process of forming the TFT structure is relatively complicated and cumbersome. In the repeated process, it often leads to TFT defects, such as: short circuit or open circuit defects of electrodes such as channels, sources, drains, and gates. Scanning lines related to leads, short-circuit or open-circuit defects of signal lines, defects of storage capacitor electrodes and pixel electrodes. Therefore, for these defects, there are laser chemical vapor deposition (Chemical Vapor Deposition, CVD) repair steps after the gate process and source / drain engineering in the typical Array pro...

Claims

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Application Information

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IPC IPC(8): G02F1/13G02F1/1362
CPCG02F1/136259G02F2202/36
Inventor 李冠政李吉陈雅惠
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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