Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1995-10-06
1999-09-21
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349119, 349120, 349121, G02F 1335
Patent
active
059561106
ABSTRACT:
A liquid crystal display panel comprises first and second substrates each having a transparent electrode and an orientation plane, a nematic liquid crystal material disposed between the first and second substrates, a polarizer disposed over the first substrate and the nematic liquid crystal material, and a simplex polymer film comprised of a single optically anisotropic substance disposed between the first substrate and the polarizer. The nematic liquid crystal material has a positive anisotropy of refractive index, a retardation of 0.55 .mu.m to 1.75 .mu.m, and molecules twisted at a high degree with a twist angle of 180.degree. to 270.degree.. The simplex polymer film has a retardation of 20 nm to 200 nm.
REFERENCES:
patent: 5126866 (1992-06-01), Yoshimizu et al.
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patent: 5175638 (1992-12-01), Kanemoto et al.
patent: 5583678 (1996-12-01), Nishino et al.
IBM Technical Disclosure Bulletin, vol. 36, No. 9B, Sep. 1993, New York, U.S.A., H. Hatoh et al., "Normally White Negative Birefringence Film Compensated Twisted Nematic Liquid Crystal Displays With Improved Optical Performance."
Fujita Hiroyuki
Senbonmatsu Shigeru
Taniguchi Kaori
Welzen Theo
Yamamoto Shuhei
Ngo Julie
Seiko Instruments Inc.
Sikes William L.
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