发明授权
US08054260B2 Driving method of stacked light modulating device, and driving device of stacked light modulating device 有权
层叠光调制装置的驱动方法,堆叠光调制装置的驱动装置

Driving method of stacked light modulating device, and driving device of stacked light modulating device
摘要:
A driving method of a stacked light modulating device for recording an image therein, which includes selective reflection layers each having a cholesteric liquid crystal, reflecting light with different wavelengths within a visible range, and being different in a lower threshold value of texture change from a planar to a focal conic texture with respect to an externally applied voltage and an upper threshold value of texture change from the focal conic to a homeotropic texture, and a pair of electrodes disposed outside, includes applying between the pair of electrodes voltages including a voltage V1 and have a same frequency, to select an area exceeding or not exceeding the upper threshold value in each of the selective reflection layers, and applying voltages including a voltage V2 and have a same frequency different from the voltage V1, to select an area exceeding or not exceeding the lower threshold value.
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