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Apparatus and method for repairing liquid crystal display device

A liquid crystal display and liquid crystal display panel technology, applied in the field of devices for repairing liquid crystal display panels, can solve problems such as interference with the light transmittance of liquid crystal materials

Active Publication Date: 2009-01-28
LG DISPLAY CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0013] The non-uniform alignment region A causes light leakage in the liquid crystal display panel, and such light leakage interferes with the light transmittance of the liquid crystal material, so that bright spots appear in the liquid crystal display panel as shown in Figure 3

Method used

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  • Apparatus and method for repairing liquid crystal display device
  • Apparatus and method for repairing liquid crystal display device
  • Apparatus and method for repairing liquid crystal display device

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Embodiment Construction

[0060] Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

[0061] A preferred embodiment of the present invention will be specifically described below with reference to FIGS. 4 to 12 .

[0062] 4 is a cross-sectional view showing an apparatus for repairing a liquid crystal display panel according to a first embodiment of the present invention.

[0063] Referring to FIG. 4, the device for repairing a liquid crystal display panel according to the first embodiment of the present invention includes: a liquid crystal display panel 170, which has a repair film (hereinafter referred to as "transparent organic film") 120 for when the liquid crystal display panel When bright spots are generated on 170 due to alignment defects caused by particles 155 mixed in the liquid crystal display panel 170, the areas where bright spots are generated are darkened; A region of the transparent o...

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Abstract

The present invention relates to an apparatus and method for repairing a liquid crystal display panel, which is capable of improving a yield thereof by darkening a bright point to minimize a defect ratio thereof. An apparatus for repairing a liquid crystal display panel according to the present invention includes: a liquid crystal display panel including a repair film formed on any one of a first substrate and a second substrate, which are facing to each other with a liquid crystal layer therebetween; and a laser irradiating device to irradiate a laser to the repair film to darken a specific area of the repair film, which is corresponded to an area where a bright point appears in the liquid crystal display panel.

Description

technical field [0001] The present invention relates to an apparatus and method for repairing a liquid crystal display panel, and more particularly, to an apparatus and method for repairing a liquid crystal display panel capable of improving its yield by dimming bright spots to minimize their defect rate method. Background technique [0002] Generally, a liquid crystal display (LCD) device controls light transmittance of a liquid crystal material according to a video signal to display images. To this end, a liquid crystal display device includes a liquid crystal display panel in which liquid crystal cells are arranged in a matrix shape, and a driving circuit that drives the liquid crystal display panel. [0003] According to the direction of the electric field driving the liquid crystal material, liquid crystal display devices are divided into two main categories, namely twisted nematic (TN) mode using an electric field in the vertical direction and in-plane switching (ISP)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13G02F1/1362H01S3/02
CPCB23K26/02G02F1/1309G02F1/133345G02F2202/02
Inventor 柳洵城权五楠赵兴烈南承熙
Owner LG DISPLAY CO LTD
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