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Method of repairing flat pannel display

A display and color filter technology, applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problem of expensive equipment

Inactive Publication Date: 2010-05-12
COWIN DST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] When using a femtosecond laser, it is effective to darken defective pixels; however, there is a problem that the equipment used to oscillate the femtosecond laser is very expensive

Method used

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  • Method of repairing flat pannel display
  • Method of repairing flat pannel display

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Embodiment Construction

[0037] Now, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0038] According to the method of repairing a bright spot pixel defect of a display device of the present invention, a pixel having a bright spot pixel defect (a color filter and its adjacent black matrix) is irradiated to darken the defective pixel.

[0039] When laser light is irradiated to an organic film such as a color filter, the molecular bonds of the organic matter constituting the film are broken, and as a result, the organic film is ablated, and at the same time radicals, clusters, electrons and photons are emitted, including A plasma of aggressive atoms, molecules, and positive and negative ions darkens the organic film.

[0040] Erosion is a phenomenon in which organic matter is broken down into molecules and ions due to the dissociation of molecular bonds of the organic matter. However, in order to achieve such dissociation, it is...

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PUM

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Abstract

Disclosed herein is a method of repairing a bright pixel defect of a display device that is capable of selectively using laser of a wavelength band having high absorption spectrum with respect to a color filter having a bright pixel defect, thereby effectively repairing the bright pixel defect of the color filter. When repairing a bright pixel defect of a display device having a polarizing plate attached thereto, the method includes, when a color filter having a bright pixel defect is a red (R) region, irradiating laser having a wavelength of 400 to 550 nm, when a color filter having a bright pixel defect is a green (G) region, irradiating laser having a wavelength of 400 to 480 nm or 600 to 750 nm, and / or, when a color filter having a bright pixel defect is a blue (B) region, irradiating laser having a wavelength of 520 to 750 nm.

Description

technical field [0001] The present invention relates to a method of repairing bright pixel defects of a display device, and more particularly to a method of repairing bright pixel defects of a display device that can selectively use laser light in a wavelength range—the The laser light in the wavelength range has a high absorption spectrum with respect to a color filter having a bright pixel defect, thereby effectively repairing the bright pixel defect of the color filter. Background technique [0002] In recent years, liquid crystal displays have been in the center of attention as next-generation high-tech display devices with low power consumption and high portability, technology density, and high added value. Among them, an active matrix type liquid crystal display, which includes a switching device for switching a voltage applied to each pixel, has attracted the most attention for its high resolution and high-quality motion picture realization. [0003] see figure 1 , ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335
CPCG02F1/1309G02F1/133512G02F1/133514G02F1/133516G02F1/133528
Inventor 金一镐
Owner COWIN DST CO LTD
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