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Method for accurate positioning of blemish display point on liquid crystal substrate

A liquid crystal substrate, precise positioning technology, used in optical testing flaws/defects, instruments, optics, etc., can solve problems such as inability to automate

Inactive Publication Date: 2006-02-08
CONTREL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a precise positioning method for the defect display point of the liquid crystal substrate, which can be applied to automatic equipment for positioning, and solves the problem that the existing technology cannot be automated

Method used

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  • Method for accurate positioning of blemish display point on liquid crystal substrate
  • Method for accurate positioning of blemish display point on liquid crystal substrate
  • Method for accurate positioning of blemish display point on liquid crystal substrate

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Embodiment Construction

[0011] see Figure 1 to Figure 3 According to a preferred embodiment of the present invention, a method for precisely positioning defect display points of a liquid crystal substrate mainly includes the following steps:

[0012] A. Create a comparison pattern 11, such as figure 1 As shown, the comparison pattern 11 is composed of a normal display point 5 on the liquid crystal substrate and 8 normal display points around it (upper left 1, upper 2, upper right 3, left 4, right 6, left lower 7, lower 8, right 9) the formed 3×3 lattice matrix, wherein each of the normal display points 1-9 has a transistor T for positioning; as figure 2 As shown, two of the normal display points 1 and 9 are selected as comparison points C1 and C2 among the surrounding normal display points. In this embodiment, they are display points 1 and 9, and the comparison points C1 and C2 are There is a distance difference between them on the X-axis and Y-axis, and the distance difference between the normal...

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Abstract

The invention provides a flaw display point precision positing method of the liquid crystal base plate which comprises the following steps: A: establishing a comparing model which is formed by a normal display point and an around normal display point, choosing two normal display points of around the normal display points as comparing points, defying the differential distance between the center normal display and the two comparing points; B: using the flaw display point around of the liquid crystal and same location normal display point of the two comparing points as base points to compare the precise location of the flow display point; using the above steps and using the normal display point around the flow display point to posit the precise location of the flow display point.

Description

technical field [0001] The present invention is related to the positioning technology of defective display points on liquid crystal substrates, and in particular refers to a precise positioning method of defective display points on liquid crystal substrates that can accurately locate the repairing positions of defective display points. Background technique [0002] During the manufacturing process of liquid crystal substrates, it is inevitable that there will be defective display points (dead pixels, bright spots), and the defects of defective display points usually occur in the connection parts between the transistors of the display point itself and other parts. The industry usually It will be repaired with a repair device (laser, hot pressing, etc.). When repairing, it is aimed at the position where the defective display point is close to the transistor. In general, because the defect display point itself is abnormal and there are many kinds of defects, it is impossible to...

Claims

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Application Information

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IPC IPC(8): G02F1/1333G01N21/88
Inventor 王正宇萧贤德李炳寰
Owner CONTREL TECH CO LTD