Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1999-03-04
2000-12-12
Parlor, Kenneth
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349106, 349110, 349117, 349119, 349122, 349192, 359499, G02F 11335, G02F 11333, G02F 113
Patent
active
061605999
ABSTRACT:
Prior art solutions to liquid crystal birefringence (which causes the emergent light to become elliptically polarized) have involved use of a single birefringent layer (macrocompensator) to compensate for this. This approach is only partly successful. The present invention improves the color balance still further by providing a separate set of microcompensators. Two of the color filters share a common microcompensator while a third color filter has its own microcompensator. The color filters are first formed on one of the two substrates' inner surfaces, with the appropriate microcompensators being then formed on the outward looking surface of the other substrate. By this means, a near perfect match between the color distortion introduced by the liquid crystal layer and the phase compensation needed to correct this can be made.
REFERENCES:
patent: 4632514 (1986-12-01), Ogwasa et al.
patent: 5136405 (1992-08-01), Wada et al.
patent: 5380459 (1995-01-01), Kanemoto et al.
patent: 5402141 (1995-03-01), Haim et al.
patent: 5499126 (1996-03-01), Abileah et al.
patent: 5559617 (1996-09-01), Mitsui et al.
patent: 5691791 (1997-11-01), Nakamura et al.
patent: 5739889 (1998-04-01), Yamada et al.
patent: 5818615 (1998-10-01), Abileah et al.
patent: 5953091 (1999-09-01), Jones et al.
L. Kuo et al, "Crucial Influences of K33/K11 ratio on viewing angle of display mode using a bend-alignment liquid-crystal cell with a compensator", Applied Physics Letters vol. 68, Mar. 1996, p1461-1463.
T. Miyashita et al. "Wide-Viewing-Angle Mode Using Bend-Alignment Liquid Crystal Cell", Jpn Journal Appl. Phys. vol. 34. Feb. 1995, pL1777-L179.
Hsieh Ting-Chiang
Kuo Chen-Lung
Ackerman Stephen B.
Industrial Technology Research Institute
Ngo Julie
Parlor Kenneth
Saile George O.
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