Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1999-03-04
2000-11-14
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349106, 349108, 349122, 349192, G02F 11335, G02F 11333, G02F 113
Patent
active
061477362
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. The color filters are located on one of the two substrates' inner surfaces, with the appropriate microcompensators being located, in one to one correspondence, on the other out surface. 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.
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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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