Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1996-07-24
1998-04-14
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349155, 349110, G02F 11333, G02F 11339
Patent
active
057398887
ABSTRACT:
A glass substrate having the first through fourth thin films formed thereon and a glass substrate having the fifth through seventh thin films formed thereon are bonded to each other with the thin-film forming surfaces facing each other through a seal member that is located at the surrounding portion of the substrates. Seal-portion spacers, which are to be mixed in the seal member, are made of glass beads with a spherical particle shape, and the rate thereof to the seal material is set to 7 to 20 Wt %. Further, the particle diameter of the spherical-shaped spacers is represented by (the layer thickness A of a liquid crystal layer)+(the total thickness B+B' of various thin films located within the effective display area)-(the total thickness C+C' of various thin films located in a seal portion)+(0.1 to 0.2 .mu.m). It becomes possible to eliminate irregularities in luminance in the vicinity of the effective display area, and consequently to provide a liquid crystal display element that meets the recent demands for high display quality of STN color liquid crystal display elements.
REFERENCES:
patent: 4222635 (1980-09-01), Julke
patent: 4740060 (1988-04-01), Komura et al.
patent: 5105209 (1992-04-01), Tomii et al.
patent: 5223964 (1993-06-01), Nagano et al.
Ogura Masami
Okuda Tohru
Takanashi Hiroshi
Yasutake Kenji
Conlin David G.
Daley, Jr. William J.
Ngo Julie
Sharp Kabushiki Kaisha
Sikes William L.
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