Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1997-07-30
1999-11-16
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349124, 349127, 349130, 349117, G02F 11337, G02F 11335
Patent
active
059867345
ABSTRACT:
An O-plate compensator comprising an organic liquid crystal polymer, and methods for fabricating the same, are disclosed. The compensator is a uniaxial birefringent thin film with its extraordinary axis oriented obliquely with respect to the surface of the film. (It is noted that the birefringent thin film could be weakly biaxial.) The oblique orientation of the liquid crystal director, which is parallel to the film's extraordinary axis, is achieved by casting an organic thin film onto a surface specially prepared for orienting liquid crystals, such as obliquely deposited SiO, mechanically rubbed alignment agents. The film can either be cast from a solution of the liquid crystal polymer or from a reactive liquid crystal monomer having a nematic phase. Any solvent that may be used during the fabrication process is evaporated off and the organic thin film is held at a temperature in its nematic phase. If a reactive monomer is used, the film is then photopolymerized. Alternative embodiments of an organic O-plate include the use of smectic-A and smectic-C materials. Fabrication techniques employing these materials arc described.
REFERENCES:
patent: 3807831 (1974-04-01), Soref
patent: 3924930 (1975-12-01), Dewhirst et al.
patent: 3960438 (1976-06-01), Bonne et al.
patent: 4032218 (1977-06-01), Scheffer
patent: 4073571 (1978-02-01), Grinberg et al.
patent: 4610510 (1986-09-01), Funada et al.
patent: 4685771 (1987-08-01), West et al.
patent: 4688900 (1987-08-01), Doane et al.
patent: 4701028 (1987-10-01), Clerc et al.
patent: 4889412 (1989-12-01), Clerc et al.
patent: 4984872 (1991-01-01), Vick
patent: 5061042 (1991-10-01), Nakamura et al.
patent: 5124824 (1992-06-01), Kozaki et al.
patent: 5134507 (1992-07-01), Ishii
patent: 5138474 (1992-08-01), Arakawa
patent: 5161042 (1992-11-01), Hamada
patent: 5164852 (1992-11-01), Konuma
patent: 5175638 (1992-12-01), Kanemoto et al.
patent: 5184237 (1993-02-01), Iimura et al.
patent: 5189538 (1993-02-01), Arakawa
patent: 5193020 (1993-03-01), Shiozaki et al.
patent: 5194975 (1993-03-01), Akatsuka et al.
patent: 5196953 (1993-03-01), Yeh et al.
patent: 5210630 (1993-05-01), Heynderickx et al.
patent: 5213852 (1993-05-01), Arakawa et al.
patent: 5227903 (1993-07-01), Miyazawa et al.
patent: 5235443 (1993-08-01), Barnik et al.
patent: 5243451 (1993-09-01), Kanemoto et al.
patent: 5245456 (1993-09-01), Yoshimi et al.
patent: 5250214 (1993-10-01), Kanemoto et al.
patent: 5260109 (1993-11-01), Iida et al.
patent: 5285303 (1994-02-01), Okada et al.
patent: 5287207 (1994-02-01), Mulkens et al.
patent: 5308535 (1994-05-01), Sheuble et al.
patent: 5319478 (1994-06-01), Funfschilling et al.
patent: 5321533 (1994-06-01), Kumar
patent: 5326496 (1994-07-01), Iida et al.
patent: 5344916 (1994-09-01), Harris et al.
patent: 5375006 (1994-12-01), Haas
patent: 5410422 (1995-04-01), Bos
patent: 5413657 (1995-05-01), Yamanashi et al.
patent: 5430565 (1995-07-01), Yamanouchi et al.
patent: 5430566 (1995-07-01), Sakaya et al.
patent: 5456867 (1995-10-01), Mazaki et al.
patent: 5460748 (1995-10-01), Mazaki et al.
patent: 5462621 (1995-10-01), Ishii
patent: 5472538 (1995-12-01), Minakuchi et al.
patent: 5472635 (1995-12-01), Iida et al.
patent: 5477358 (1995-12-01), Rosenblatt et al.
patent: 5490006 (1996-02-01), Masumoto et al.
patent: 5491001 (1996-02-01), Mazaki et al.
patent: 5496498 (1996-03-01), Toyooka et al.
patent: 5504603 (1996-04-01), Winker et al.
patent: 5506706 (1996-04-01), Yamahara et al.
patent: 5510913 (1996-04-01), Hashimoto et al.
patent: 5518783 (1996-05-01), Kawata et al.
patent: 5526150 (1996-06-01), Mazaki et al.
patent: 5528400 (1996-06-01), Arakawa
patent: 5532851 (1996-07-01), Usami
patent: 5557434 (1996-09-01), Winker et al.
patent: 5559618 (1996-09-01), Mori
patent: 5568290 (1996-10-01), Nakamura
patent: 5589963 (1996-12-01), Gunning, III et al.
patent: 5612801 (1997-03-01), Winker
patent: 5619352 (1997-04-01), Koch et al.
patent: 5638197 (1997-06-01), Gunning et al.
patent: 5677747 (1997-10-01), Ishikawa et al.
Clerc, Jean Frederic. Vertically Aligned Liquid-Crystal Displays. SID 91 Digest, pp. 758-761.
Clerc, et al. Highly Multiplexed Super Homeotropic LCD. Japan Displays 89 Digest, pp. 188-191.
Macleod, H. Angus. Structure-Related Optical Properties of Thin Films. Journal of Vacuum Science Technology A, vol. 4, No. 3 (1986) pp. 418-422.
Motohiro, T. and Taga, Y. Thin film Retardation Plate by Oblique Deposition. Applied Optics, vol. 28, No. 13 (Jul. 1, 1989), p. 2466.
Yamanoto, et al. Full-Cone Wide-Viewing-Angle Multicolor CSH-LCD. SID 91 Digest, pp. 762-765.
Kahn, "The Molecular Physics of Liquid-Crystal Devices," Physics Today, pp. 66-74, May 1982.
Macleod, "Structure-Related Optical Properties of Thin Films" J. Vac. Sci. Technol. A, vol. 4, No. 3, pp. 418-422, 1986. No month.
Motohiro and Taga, "Thin Film Retardation Plate by Oblique Deposition," Appl. Opt., vol. 28, No. 3, pp. 2466-2482, 1989. No month.
Chung Young J.
Li Zili
Rosenblatt Charles
Ryang Hong-Son
Warren, Jr. Leslie F.
Deinken John J.
O'Shaughnessey James P.
Rockwell International Corporation
Sikes William L.
Ton Toan
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