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In-plane switching mode liquid crystal display device and method of manufacturing the same

A coplanar switch and liquid crystal display technology, which is applied in instruments, nonlinear optics, optics, etc.

Active Publication Date: 2009-04-01
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When performing photolithography, due to the characteristics of photolithography, it is very limited to reduce the width of the pixel electrode 2 and the common electrode 4

Method used

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  • In-plane switching mode liquid crystal display device and method of manufacturing the same
  • In-plane switching mode liquid crystal display device and method of manufacturing the same
  • In-plane switching mode liquid crystal display device and method of manufacturing the same

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Embodiment Construction

[0047] will refer to the attached Figure 4A with Figure 5 The preferred embodiment of the present invention is described in detail with the example of the method of fabricating a coplanar switching liquid crystal display device shown in .

[0048] A method for manufacturing a coplanar switching mode liquid crystal display device will be described below.

[0049] Figure 4A to Figure 4E Shown are cross-sectional views of the manufacturing process of the IPS mode liquid crystal display device according to the preferred embodiment of the present invention. Figure 4A to Figure 4E Only the process of forming the pixel electrode and the common electrode in the unit pixel area of ​​the coplanar switch mode liquid crystal display device is shown. Other elements may be formed by various methods known in the field of the invention and their modifications.

[0050] First, if Figure 4A As shown in , the first insulating layer 110 is patterned so as to have a predetermined shape o...

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Abstract

A method of manufacturing an IPS switching mode liquid crystal display device includes forming a first insulation layer on a substrate, forming an electrode layer on the substrate containing the first insulation layer, forming a second insulation layer on the electrode layer, etching the second insulation layer such that the second insulation layer remains on sides of the first insulation layer, and etching the electrode layer using the remaining second insulation layer as a mask to form a plurality of electrodes. The plurality of electrodes are formed to have widths of about 0.1 mu m to 2 mu m, thus aperture ratio and transmittance are increased.

Description

[0001] This application claims priority from Korean Patent Application No. P2005-55725 filed on June 27, 2005, which is hereby incorporated by reference as if fully set forth herein. technical field [0002] The invention relates to a liquid crystal display device, in particular to an in-plane switch (IPS) mode liquid crystal display device. Background technique [0003] Among ultrathin flat panel display devices having a screen thickness of only several centimeters, liquid crystal display devices are mainly used in various fields such as portable computers, monitors, and airplanes. [0004] A liquid crystal display device includes a lower substrate, an upper substrate, and a liquid crystal layer formed between the upper and lower substrates. In a liquid crystal display device, when a voltage is applied, the arrangement of the liquid crystal changes, and the light transmittance is adjusted according to the arrangement change, thereby displaying an image. [0005] Hereinafte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1333G02F1/136
CPCG02F2201/123G02F2201/40G02F1/134363G02F1/1343
Inventor 柳洵城赵兴烈
Owner LG DISPLAY CO LTD