Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1987-04-01
1989-11-28
Miller, Stanley D.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
350332, 350333, 340765, 340784, 340805, G02F 113
Patent
active
RE0331201
ABSTRACT:
A method for driving a liquid crystal element including a ferroelectric liquid crystal sandwiched between a pair of substrates having electrodes on their opposite surfaces is disclosed. A pulse voltage for defining the light transmitting state of the liquid crystal element is applied to the ferroelectric liquid crystal. Before and/or after the application of the pulse voltage, the ferroelectric liquid crystal is applied with a voltage signal which renders the average value of voltages applied to the ferroelectric liquid crystal equal to zero.
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patent: 4655561 (1987-04-01), Kanbe et al.
Ono, K. et al., "Large-area Liquid Crystal Matrix Display Advances to Prototype Stage," J. E. E. Jour. of Electronic Engineering, Oct. 1975, No. 107, pp. 34-38.
Clark, N. A., et al., "Submicrosecond Bistable Electro-Optic Switching in Liquid Crystals," Applied Phys. Lett., vol. 36, No. 11, (Jun. 1980) pp. 899-901.
Meyer, R. B., "Ferroelectric Liquid Crystals: A Review," Molecular Crystals & Liquid Crystals, vol. 40, (1977) pp. 33-48.
Isogai Masato
Kawakami Hideaki
Nagae Yoshiharu
Nakano Fumio
Gallivan Richard
Hitachi , Ltd.
Miller Stanley D.
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