Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1987-03-02
1988-12-27
Miller, Stanley D.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
350333, 340765, 340805, G02F 113
Patent
active
047936932
ABSTRACT:
A ferro-electric crystal electro-optical device which uses switching between bi-stable states of ferro-electric liquid crystal molecules. A change from one of the stable states to the other is effected by applying a selected voltage having a combination of chopping pulse to which the liquid crystal molecules are not responsive and DC pulse to which the liquid crystal molecules are responsive.
REFERENCES:
patent: 4701026 (1987-10-01), Yazaki et al.
Harada Takamasa
Ito Kokichi
Shimoda Sadashi
Taguchi Masaaki
Adams Bruce L.
Gallivan Richard F.
Miller Stanley D.
Seiko Instruments Inc.
Wilks Van C.
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