Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-12-19
2006-12-19
Schechter, Andrew (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S129000, C349S118000, C349S120000
Reexamination Certificate
active
07151582
ABSTRACT:
A liquid crystal display device includes a liquid crystal cell, polarizers, a first retardation plate arranged between the liquid crystal cell and the first polarizer, and a second retardation plate arranged between the liquid crystal cell and the second polarizer. Each retardation plate has an optical axis in a plane parallel to the substrate surface and a retardation of substantially λ/4. The optical axis of one retardation plate is perpendicular to the optical axis of the other. The polarizing axes of the polarizers are arranged at an angle of 45° with respect to the optical axes of the retardation plates. The liquid crystal cell is arranged such that a state of alignment of liquid crystal molecules changes, accompanying a change in a polar angle and/or change in an azimuth, upon application of a voltage.
REFERENCES:
patent: 3914022 (1975-10-01), Kashnow
patent: 4701028 (1987-10-01), Clerc et al.
patent: 5189538 (1993-02-01), Arakawa
patent: 5229873 (1993-07-01), Hirose et al.
patent: 5344916 (1994-09-01), Harris et al.
patent: 6166791 (2000-12-01), Mitsui et al.
patent: 6166793 (2000-12-01), Hayashi et al.
patent: 6493050 (2002-12-01), Lien et al.
patent: 6657695 (2003-12-01), Song et al.
patent: 6680766 (2004-01-01), Larson et al.
patent: 6686981 (2004-02-01), Noritake et al.
patent: 1-270024 (1989-10-01), None
patent: 3-5721 (1991-01-01), None
patent: 5-19247 (1993-01-01), None
patent: 06-317795 (1994-10-01), None
patent: 07311383 (1995-11-01), None
patent: 8-292423 (1996-11-01), None
patent: 9-258013 (1997-10-01), None
patent: 10-10487 (1998-01-01), None
patent: 10-68942 (1998-03-01), None
patent: 10-282489 (1998-10-01), None
patent: 10-301097 (1998-11-01), None
patent: 11-223814 (1999-08-01), None
patent: 11-352489 (1999-12-01), None
patent: 2000-29010 (2000-01-01), None
patent: 2000-347174 (2000-12-01), None
Clerc, “Vertically Aligned Liquid Crystal Displays,” proceedings of the SID 1991.
Wei et al., “Vide-Viewing-Angle Polymer Stabilized Homeotropically Aligned (PSHA) LCD,” SID Proc, 1998.
Inoue Yuichi
Sasaki Takahiro
Yoshida Hidefumi
Chien Lucy
Greer Burns & Crain Ltd.
Schechter Andrew
Sharp Kabushiki Kaisha
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