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Liquid crystal display and method for restoring broken wires

A liquid crystal display and grid line technology, applied in the direction of instruments, nonlinear optics, optics, etc., can solve problems such as waste and increase production costs, and achieve the effects of avoiding waste, saving production costs, and avoiding product waste

Inactive Publication Date: 2009-11-18
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As for the broken signal line after the box forming process, the existing technology has not given a practical solution. In the current production, the products with bad signal line broken are processed as waste products, which improves production on the one hand. cost, on the other hand, it causes a large waste

Method used

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  • Liquid crystal display and method for restoring broken wires
  • Liquid crystal display and method for restoring broken wires
  • Liquid crystal display and method for restoring broken wires

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Embodiment Construction

[0033] figure 1 It is a flow chart of the method for repairing a broken line of a liquid crystal display of the present invention, specifically including:

[0034] Step 1. Determine the position of the disconnection point of the signal line and the position of the pixel where the disconnection point is located;

[0035] Step 2. Laser welding is used to weld the signal lines at both ends of the disconnection point to the pixel electrode of the pixel, and laser cutting is used to disable the TFT of the pixel.

[0036] figure 2 Figure 8 It is a schematic diagram of the first embodiment of the method for repairing a broken line of a liquid crystal display of the present invention, wherein the array substrate of the liquid crystal display is a thin film transistor liquid crystal display (Thin FilmTransistor Liquid Crystal Display, referred to as TFT-LCD) array substrate, and the storage capacitor is located Typical pixel structure on Cst On Gate. The TFT-LCD array substrate o...

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Abstract

The invention relates to a liquid crystal display and a method for restoring broken wires. The method for restoring the broken wires comprises the following methods: determining the breaking positions of signal wires and the positions of pixel points in which the breaking points are arranged; welding the signal wires at two ends of the breaking points and pixel electrodes of the pixel points by a laser welding method; and making TFT of the pixel points invalidated by a laser cutting method. By taking the pixel electrodes as conducting layers and adopting the proposal of combining laser welding and laser cutting, defective broken lines of grid lines or defective broken lines of common electrode wires are restored into defective pixel points, namely bright line defect is restored into bright point or dark point defect so as to improve the grade of defective liquid crystal displays; in addition, the method is not only applied before a box forming process, but also can be effectively applied after the box forming process, effectively avoid the discard of products, save the production cost on one hand, and can avoid the waste to the utmost extent on the other hand.

Description

technical field [0001] The invention relates to a display and a repairing method thereof, in particular to a liquid crystal display and a method for repairing broken wires thereof. Background technique [0002] Liquid Crystal Display (LCD) has the characteristics of small size, low power consumption, and no radiation, and has now occupied a dominant position in the field of flat panel display. The main structure of the liquid crystal display includes an array substrate and a color filter substrate that are boxed together and the liquid crystal is sandwiched between them. On the array substrate, gate lines that provide scanning signals, data lines that provide data signals, and pixel electrodes that form pixel points are formed. [0003] The manufacturing process of the liquid crystal display mainly includes the array process of preparing the array substrate and the color film substrate, the box forming process of combining the array substrate and the color film substrate and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13G02F1/1362
CPCG02F1/136286G02F1/1309
Inventor 彭志龙
Owner BOE TECH GRP CO LTD
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