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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: 2006-06-21
LG DISPLAY CO LTD
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  • Abstract
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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] The following will refer to Figures 4 to 12 Preferred embodiments of the present invention will be described in detail.

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

[0063] refer to Figure 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 having a repair film (hereinafter referred to as "transparent organic film") 120 for when on the liquid crystal display panel 170 because When a bright spot is generated due to an alignment defect caused by particles 155 mixed in the liquid crystal display panel 170, the area where the bright spot is generated becomes dark; 120 An area corre...

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Abstract

The present invention relates to a device and method for repairing a liquid crystal display panel, which can minimize the defect rate of the liquid crystal display panel by dimming bright spots, thereby increasing its yield. 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 facing each other, and a liquid crystal layer is located between the two substrates and a laser irradiating device for irradiating laser light to the repair film to darken a specific area of ​​the repair film corresponding to the area where bright spots appear 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)...

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Application Information

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Patent Type & Authority Applications(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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