Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1987-07-21
1988-08-16
Miller, Stanley D.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
350333, 350350S, 340765, 340804, G02F 113
Patent
active
047639946
ABSTRACT:
An optical modulation device comprises a plurality of pixels arranged in a plurality of lines. Each pixel is electrically connected to an optical modulation material, such as ferroelectric liquid crystal, showing a first and a second orientation state depending on an applied electric field and is composed to be capable of forming a potential gradient. The optical modulation device is driven to provide a gradation display by a method comprising a first step of forming in a line of pixels a written state in a width exceeding a prescribed width, and a second step of erasing an excess width to leave the written state in the prescribed width.
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Kaneko Shuzo
Toyono Tsutomu
Canon Kabushiki Kaisha
Gallivan Richard
Miller Stanley D.
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