Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1991-08-16
1995-03-07
Gross, Anita Pellman
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 57, 359 79, 359100, 345 97, G09G 3130, G02F 1133
Patent
active
053963520
ABSTRACT:
Disclosed is a liquid crystal apparatus including a liquid crystal panel having a pair of electrodes and a liquid crystal exhibiting spontaneous polarization and arranged between the pair of electrodes, first means for applying a gradation voltage signal corresponding to gradation information to the pair of electrodes, and second means for applying, a DC component serving as a reverse bias of an internal electric field generated upon application of the gradation voltage signal, to the liquid crystal during one vertical scanning period.
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patent: 4770502 (1988-09-01), Kitazima et al.
patent: 4840462 (1989-06-01), Hartmann
patent: 5061044 (1991-10-01), Matsunaga
patent: 5095376 (1992-03-01), Umeda et al.
patent: 5126867 (1992-06-01), Ishiwata
patent: 5136408 (1992-08-01), Okada et al.
patent: 5227900 (1993-07-01), Inaba et al.
W. Hartmann, Ferroelectric Liquid-Crystal Video Display, Proceeedings of the Society for Information Display, vol. 30, No. 2 (1989).
Fujiwara Ryoji
Kaneko Shuzo
Maruyama Tomoro
Yoshida Akio
Canon Kabushiki Kaisha
Duong Tai V.
Gross Anita Pellman
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