Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1998-01-06
2000-07-25
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349 96, 349179, 349180, G02F 11335, C09K 1902
Patent
active
060942460
ABSTRACT:
A twisted nematic liquid crystal-based electro-optic modulator with a twist angle between 0.degree. and 90.degree., and preferably between 50.degree. and 80.degree. is provided. The modulator provides a relatively rapid switching time such as less than about 50 milliseconds, and provides relatively large extinction ratios, such as greater than -25 dB. Preferably the liquid crystal entrance director differs from the polarization direction by a beta angle of about 15.degree..
REFERENCES:
patent: 4019807 (1977-04-01), Boswell et al.
patent: 4378955 (1983-04-01), Bleha, Jr. et al.
patent: 4896947 (1990-01-01), Leenhouts
patent: 4952030 (1990-08-01), Nakagawa et al.
patent: 4999619 (1991-03-01), Te Velde
patent: 5105289 (1992-04-01), Sonehara et al.
patent: 5172257 (1992-12-01), Patel
patent: 5606439 (1997-02-01), Wu
patent: 5726723 (1998-03-01), Wang et al.
patent: 5854666 (1998-12-01), Fujimaki
patent: 5870164 (1999-02-01), Lu et al.
Ouchi, Yukio, Kideo Takezoe and Atsuo Fukada; Switching Process in Ferroelectric Liquid Crystals; Disclination Dynamics of the Surface Stabilized States; Japanese Journal of Applied Physics; vol. 26, No. 1; Jan. 1987, pp. 1-14.
Clark, Noel A. And Swen T. Lagerwall; Submicrosecond bistable electro-optic switching in liquid cryastals; Appl. Phys. Lett 36(11) Jun. 1, 1980.
Chen Yen-Chen
Liu Jian-Yu
Wong Charles
Wu Kuang-Yi
Chorum Technologies
Chowdhury Tarifur R.
Sikes William L.
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