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Liquid crystal panel for a liquid crystal display device

a liquid crystal display and liquid crystal panel technology, applied in static indicating devices, instruments, non-linear optics, etc., can solve the problems of inferior goods being produced, the display quality of liquid crystal displays is deteriorated, and inferior goods may be produced

Inactive Publication Date: 2002-05-30
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

0024] FIG. 1 is a flow chart illustrating a fabricating sequence of liquid crystal cells for the conventional liquid crystal display device;
0025] FIG. 2 is a schematic diagram illustrating a conventional injection process of liquid crystal;
0026] FIGS. 3A to 3C are schemati

Problems solved by technology

If the upper and lower substrates are aligned and attached with an aligning margin larger than the error margin discussed above, display quality of the liquid crystal display is deteriorated due to a leakage of light during operation of the liquid crystal cell.
Because inferior goods may be produced by contaminations if the liquid crystal cell is exposed to the air, the liquid crystal cell must be protected from the air and must not be left in the air for a long time when it is not sealed.
If the liquid crystal with air bubbles is injected into the liquid crystal panel, inferior goods may be produced.
If the pressure is changed rapidly to reduce the injection time, the liquid crystal 8 may be altered and the liquid crystal panel 14 may be deformed and damaged.
This phenomenon becomes more serious as the size of the liquid crystal panel is larger.

Method used

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  • Liquid crystal panel for a liquid crystal display device
  • Liquid crystal panel for a liquid crystal display device
  • Liquid crystal panel for a liquid crystal display device

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Embodiment Construction

[0029] Reference will now be made in detail to an embodiment of the present invention, which is illustrated in the accompanying drawings.

[0030] FIG. 4 is a simplified plan view illustrating a part of a liquid crystal panel for a liquid crystal display device and only a region whereto a liquid crystal is injected is shown in the figure for convenience sake. As shown in the figure, a liquid crystal panel 200 for a liquid crystal display device according to the present invention comprises an upper substrate 100a having color filters and black matrices (not shown) thereon, a lower substrate 100b having array elements (not shown) thereon, a seal pattern 110 disposed between the upper and lower substrates and having an injection hole 104, a liquid crystal 106 injected between the upper and lower substrate through the injection hole 104 of the seal pattern 110, and a plurality of ribs 108 disposed on an internal edge of the liquid crystal panel 100 facing the injection hole 104. The ribs m...

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PUM

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Abstract

A liquid crystal panel for the liquid crystal display device has a plurality of ribs disposed on an opposite internal edge to the injection hole in order to speed up the injection time of the liquid crystal and the ribs of the liquid crystal panel have a shape of the teeth of a comb.

Description

[0001] This application claims the benefit of Korean Patent Application No. 2000-71352, filed on Nov. 28, 2000 in Korea, which is hereby incorporated by reference as if fully set forth herein.[0002] 1. Field of the Invention[0003] The present invention relates to a liquid crystal display (LCD) device and more particularly, to a liquid crystal panel having ribs therein to reduce an injection time of liquid crystal.[0004] 2. Discussion of the Related Art[0005] A typical liquid crystal display (LCD) panel has an upper substrate and a lower substrate and a liquid crystal layer interposed therebetween. More specifically, the upper substrate includes common electrodes, while the lower substrate includes switching elements, such as thin film transistors (TFTs), and pixel electrodes.[0006] A manufacturing process and an operation of the liquid crystal cell will be described. Common electrodes and pixel electrodes are formed on upper and lower substrates, respectively. A seal is then formed ...

Claims

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Application Information

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IPC IPC(8): G02F1/133G02F1/1341
CPCG02F1/1341G02F1/133
Inventor CHOI, SUK-WONCHOI, SU-SEOK
Owner LG DISPLAY CO LTD