Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1995-04-04
1997-10-21
Lovering, Richard D.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349156, 25229901, 2522994, G02F 113, G02F 11337, C09K 1952, C09K 1954
Patent
active
056801874
ABSTRACT:
To obtain a liquid crystal display device which has no leakage of light and has excellent contrast in the minimum number of manufacturing processes. To obtain cell gap Ga on the array panel 12, first projecting sections 38A are formed in a black matrix 38, and, on the color filter panel 13, second projecting sections 50 are formed in which a red color filter 46R, a green color filter 46G, and a blue color filter 46B are placed one upon another. Since the heights of the first projecting sections 38A and the second projecting sections 50 can be made, for instance, half of cell gap Ga, the rubbing process of orientation films 40 and 54 can be performed reliably. In this way, liquid crystal elements can be fully aligned, preventing the leakage of light. Further, since no transparent spacer is required, there is no leakage of light due to this. In addition, the projecting sections can be formed simply by the processes for forming the color filter 46 and the black matrix 38.
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Nagayama Kazuyoshi
Ueki Toshihiro
Aker David
International Business Machines - Corporation
Lovering Richard D.
Sbrollini Jay P.
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