Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1986-12-23
1990-06-12
Miller, Stanley D.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
350333, 340784, G02F 113
Patent
active
049327593
ABSTRACT:
An optical modulation device includes scanning electrodes and signal electrodes disposed opposite to and intersecting with the signal electrodes, and an optical modulation material disposed between the electrodes, a pixel being formed at each intersection of the electrodes so as to provide a matrix of pixels as a whole and having a contrast depending on the polarity of a voltage applied thereto. The device is driven by a method including, in a writing period for writing in the respective pixels on a selected scanning electrode: at least two repeating sets of phases, each set of phases comprising a state-determining phase for determining the contrast of a pixel and an auxiliary phase for not determining the contrast of the pixel.
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Inaba Yutaka
Kanbe Junichiro
Kaneko Shuzo
Mouri Akihiro
Toyono Tsutomu
Canon Kabushiki Kaisha
Duong Tai Van
Miller Stanley D.
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