Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1999-03-04
2000-06-20
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349110, 349117, 349119, G02F 11333, G02F 11335
Patent
active
060783737
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 (macro-compensator) 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 for each primary color of the display. The microcompensators are first formed on one of the two substrates' inner surfaces, with the appropriate color filter being then formed directly over each one. By this means, an exact match between the color distortion introduced by the liquid crystal layer and the phase compensation needed to correct this can be made for each primary color separately.
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patent: 5499126 (1996-03-01), Abileah et al.
L. Koo et al, "Crucial Influences of K33/K11 Ratio on Viewing Angle of Display Modeusing a Bend-Alignment Liquid-Crystal Cell with a Compensator", Applied Physics Letters vol. 68, Mar. 1996, pp. 1461-1463.
T. Miyashito et al. "Wide-Viewing Angle Modelsing 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
Saile George O.
Sikes William L.
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