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Method for repairing pixel defect and image display system

A pixel defect and pixel technology, applied in static indicators, nonlinear optics, instruments, etc., can solve problems such as permanent destruction of pixels

Active Publication Date: 2012-07-18
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional method, part of the storage capacitor Csc, such as position 20, is directly caused by laser welding to cause the pixel to be disconnected.
However, directly burning the storage capacitor Csc with laser is destructive burning, which causes permanent damage to the pixel and sacrifices the pixel
[0004] In view of this, in order to effectively improve product grades, industry companies need a method to repair defective pixels with bright spots, without destroying bright spots into dark spots and affecting product grades

Method used

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  • Method for repairing pixel defect and image display system
  • Method for repairing pixel defect and image display system
  • Method for repairing pixel defect and image display system

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Embodiment approach

[0022] The invention relates to a method for repairing point defects of a liquid crystal display substrate. When an invisible pixel electrode remains or is connected, the pixel electrode in the peripheral area of ​​the pixel electrode is directly cut by a laser, so that it does not It will damage the components and material layer under the pixel electrode, and it can also directly repair the defect of the bright spot. In addition to not needing to sacrifice the pixel, the bright spot can be directly repaired to maintain its normal function. Below for the embodiment of the present invention, describe in detail as follows:

[0023] figure 2 It is a plan view of an active element array substrate for repairing bright spot defects according to an embodiment of the present invention. see figure 2 , an active device array substrate 100 includes a pixel array, and each pixel is constituted by an area surrounded by parallel gate lines 107 and data lines 106 , such as adjacent pixel...

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Abstract

The invention provides a method for recovering pixel defect and an image display system containing a structure made with the method. The method comprises the following: a base board for an active element to be detected is provided; array test on the base board for the active element is carried out; removing by laser burning is conducted when one electrode connection has defect between two adjacent pixels on the base board for an active element, so that they don't connect any more, hence the two pixels are recovered.

Description

technical field [0001] The invention relates to an image display system, and in particular to a method for repairing pixel defects and an image display system including a structure made by the method. Background technique [0002] With the improvement of image quality requirements, the pixel density of liquid crystal displays also increases. However, an increase in pixel density means a decrease in the critical dimension (CD) of the process. As far as the adjacent pixels are concerned, due to the difference in the photolithography and etching process, the pixel electrode will leave a part of the area, which will cause the adjacent pixel electrodes to be connected, and this defect will cause the pixel bright spot. Generally speaking, a panel with more than 3 pixel bright spots cannot be accepted by consumers, and can only be classified as a substandard product for shipment or directly scrapped, resulting in increased manufacturing costs. What's more, since the general pixel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13G02F1/136G09G3/36
Inventor 叶怡君蔡善宏罗钰杨舒如陈素芬
Owner INNOLUX CORP