Black matrix for liquid crystal display

Details Black matrix for liquid crystal display Black matrix for liquid crystal display

1996-01-16

1998-02-24

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349111, 349139, 349122, 430 7, G02F 11335, G02F 11343

Patent

active

057215995

ABSTRACT:
The electric circuit of a Liquid Crystal Display normally includes a common electrode comprising a material such as indium-tin-oxide that has high resistivity and hence high series resistance. Said series resistance is significantly reduced by the design taught in the present invention wherein an electrically conductive black matrix is located so as to be in contact with the common electrode. Additionally, said design reduces the level of light reflected back in the direction of viewing, thereby improving the contrast level of the display.

REFERENCES:
patent: 5329389 (1994-07-01), Nishida et al.
patent: 5414442 (1995-05-01), Yamazaki et al.
Koseki et al. "Color filter for 10.4-in-diagonal 4096-color-thin-film transistor liquid crystal displays" IBM J. Res. Develop. vol. 36--No. 1--Jan. 1992.
"Progress In Color Filers for LCDs" by M. Tani et al. Published in Toppan Printing Co, Ltd. (No Date Provided).
"An Analysis of Source-Common Coupling Effect in Large-Area TST-LCDs" by S. Yachi et al. in SID '91 Digest Paper 4.6 P. 30-33-No Date Provided.

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