Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2011-04-19
2011-04-19
Nelms, David (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S123000, C349S124000, C349S125000, C349S126000, C349S129000
Reexamination Certificate
active
07929094
ABSTRACT:
A liquid crystal display device700includes a pair of substrates, a vertical alignment type liquid crystal layer490provided between the pair of substrates, and electrodes481and485for applying a voltage to the vertical alignment type liquid crystal layer490. At least one of the pair of substrates has a rugged structure on a surface which is in contact with the vertical alignment type liquid crystal layer. The surface having the rugged structure formed thereon has a region in which the height of the rugged structure varies along a first direction with a first period and varies along a second direction perpendicular to the first direction with a second period different from the first period. The first period is no less than 0.1 μm and no more than 10 μm, and the second period is no less than 0.1 μm and no more than 10 μm. The vertical alignment type liquid crystal layer490has a pretilt due to the rugged structure with no voltage applied thereacross.
REFERENCES:
patent: 5438421 (1995-08-01), Sugawara et al.
patent: 5717474 (1998-02-01), Sarma
patent: 5917570 (1999-06-01), Bryan-Brown et al.
patent: 6067141 (2000-05-01), Yamada et al.
patent: 6335775 (2002-01-01), Iwamura et al.
patent: 6362863 (2002-03-01), Kataoka et al.
patent: 6724452 (2004-04-01), Takeda et al.
patent: 6965421 (2005-11-01), Tsuchiya
patent: 2001/0024256 (2001-09-01), Kitson et al.
patent: 2002/0135725 (2002-09-01), Terashita et al.
patent: 2002/0159018 (2002-10-01), Kataoka et al.
patent: 2003/0112394 (2003-06-01), Yoshida et al.
patent: 2004/0150141 (2004-08-01), Chao et al.
patent: 01-238619 (1989-09-01), None
patent: 3-150530 (1991-06-01), None
patent: 04-356019 (1992-12-01), None
patent: 07-175066 (1995-07-01), None
patent: 99/34251 (1999-07-01), None
patent: 01/40853 (2001-06-01), None
T. Uchida et al., “Liquid Crystal Orientation on the Surface of Obliquely-Evaporated Silicon Monoxide with Homeotropic Surface Treatment”, Japanese Journal Appl. Phys., vol. 19, pp. 2127-2136, 1980.
Y. Kawai et al., “Control of nematic liquid crystal alignment using an ultra-fine periodical structures”, Preprints of 2002 Liquid Crystal Symposium, pp. 111-112.
J.C. Jones et al., “Meeting the Display Requirements for Portable Applications using Zenithal Bistable Devices,” SID 2002 Digest, pp. 90-93.
J. Cognard, “Alignment of Nematic Liquid Crystals and Their Mixtures”, Molecular Crystals and Liquid Crystals Supplements Series, Supplement 1, 1987.
G.P. Bryan-Brown et al., “Grating Aligned Bistable Nematic Device”, SID 97 Digest, pp. 37-40, 1997.
Nelms David
Nguyen Lauren
Nixon & Vanderhye P.C.
Sharp Kabushiki Kaisha
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