Liquid crystal optical device
AssigneeCitizen Watch Co., Ltd.
InventorShinya Kondoh
Life of this patent
Estimating the term…
Abstract
Disclosed is a liquid crystal optical device which produces a color display by using a light source mounted behind a liquid crystal panel and capable of emitting a plurality of different colors, wherein the period from the time the light source mounted on the back emits one color to the time the light source switches to the next color is set as a scanning period, and the scanning period comprises a selection period (Se), a non-selection period (NSe), and a reset period (Rs), the length of the reset period being equal to one half the scanning period, and wherein a black display state is effected in the reset period (Rs).
Claims9
A liquid crystal optical device comprising:
- a liquid crystal panel for displaying display data using pixels with a liquid crystal sandwiched between a pair of substrates having a plurality of electrodes on opposing surfaces thereof;
- and a light source for emitting different colored lights, wherein a period from the time any one of said colored lights is emitted to the time switching is made to another one of said colored lights is set as a scanning period, and for each of said electrodes, said scanning period comprises a selection period for determining a transmittance state based on said display data and a reset period for resetting said pixels to a certain transmittance state irrespectively of said display data, and wherein the length of said reset period is approximately equal to one half the length of said scanning period.
Dependencies are inferred from the claim text.