G - Physics – 02 – F
Patent
G - Physics
02
F
G02F 1/1333 (2006.01) G02F 1/133 (2006.01) G02F 1/1334 (2006.01) G02F 1/137 (2006.01)
Patent
CA 2126199
A method of driving a liquid crystal device includes alternately applying voltages causing a composite film (1) to attain an opaque state and a transparent state, respectively, changing the time period, thereby changing the ratio of the time period of the opaque state to the time period of the transparent state per unit time period, and controlling the power of light transmitted through the composite film (1) per unit time period. A liquid crystal apparatus is provided with a driving circuit (D) for applying the above-described driving voltages to the liquid crystal device (L). An illumination apparatus has the above-described liquid crystal device (L) disposed in the optical path of light projected from a light source lamp (P).
Fujikake Hideo
Hirabayashi Tsunehiro
Kashiwagi Tohru
Takano Satoshi
Takata Kensaku
G. Ronald Bell & Associates
Nippon Hoso Kyokai
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