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Title:
MULTI-GAP COLOR LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2003005213
Kind Code:
A
Abstract:

To solve the problem that in a color liquid crystal display device having a multi-gap structure, a liquid crystal changes in capacitance to each pixel of R, G, B corresponding to the cell gap size of a liquid crystal layer, and accordingly, a drop of pixel electrode voltage caused by punch-through of a gate pulse is also different by each pixel, therefore, it is difficult to reduce flickers by correcting asymmetry of a signal waveform by setting voltage applied to a counter electrode common to each pixel as in a color liquid crystal display device having the same cell gap size to each pixel.

In accumulated capacitance or parasitic capacitance between the gate and drain in a pixel, a difference in the liquid crystal capacitance between respective pixels is compensated by setting an area, film thickness of an insulating film, or a dielectric constant correspondingly to the cell gap lengths of R, G, B.


Inventors:
KIMURA YOHEI
IWAI YOSHIO
YAMAGUCHI HISANORI
UNO MITSUHIRO
Application Number:
JP2001187509A
Publication Date:
January 08, 2003
Filing Date:
June 21, 2001
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G02B5/20; G02F1/1335; G02F1/1368; H01L21/336; H01L29/786; (IPC1-7): G02F1/1368; G02B5/20; G02F1/1335; H01L21/336; H01L29/786
Domestic Patent References:
JPH10133190A1998-05-22
JPH0611733A1994-01-21
Attorney, Agent or Firm:
Yumori Kimori