Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1996-07-31
1997-04-08
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349117, 349119, 349177, G02F 11333, G02F 11335, G02F 113
Patent
active
056193521
ABSTRACT:
A twisted/splayed O-plate compensation device, in accordance with the invention, is comprised of an organic liquid crystal polymer thin film and possibly one or more other birefringent layers. The O-plate thin film is a birefringent medium with its optical symmetry axis, on average, oriented obliquely with the surface of the film. Within this constraint, the direction of the material's optical symmetry axis is allowed to vary continuously along the axis normal to the film surface. Such films may be fabricated by applying thin layers of chiral doped nematic or semectic liquid crystal monomer solutions in inert solvents to transparent substrates. The carrier solvents are then evaporated and the monomers polymerized by UV irradiation. Compensation devices may also be comprised of multiple layers of twisted/splayed O-plate material in conjunction with A-plates, C-plates, and simple O-plates. Fabrication techniques for twisted/splayed O-plates are described.
REFERENCES:
patent: 4813770 (1989-03-01), Clerc et al.
patent: 5124824 (1992-06-01), Kozaki et al.
patent: 5126868 (1992-06-01), Kizaki et al.
patent: 5184237 (1993-02-01), Iimura et al.
patent: 5189538 (1993-02-01), Arakawa
patent: 5196953 (1993-03-01), Yeh et al.
patent: 5375006 (1994-12-01), Haas
patent: 5460748 (1995-10-01), Mazaki et al.
"Liquid Crystal TV Displays: Principles and Applications of Liquid Crystal Displays, " E. Kaneko, KTH Scientific Publishers, Tokyo, Japan, 1987.
Emsworth, "Achromatic Retardation Layers Based on Anisotropic Polymer Networks," Research Disclosure, No. 337, 1992, p. 411.
Aoki, "Liquid Crystal Display Device, " Patent Abstracts of Japan, vol. 12, 413, 1988, p. 780.
Gunning, III William J.
Koch Gene C.
Winker Bruce K.
Malinowski Walter J.
Montanye George A.
Murrah M. Lee
Rockwell International Corporation
Sikes William L.
LandOfFree
LCD splay/twist compensator having varying tilt and /or azimutha does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with LCD splay/twist compensator having varying tilt and /or azimutha, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and LCD splay/twist compensator having varying tilt and /or azimutha will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2400909