Fuji Xerox Co., Ltd.

Makoto Gomyo

Haruo Harada

Hiroshi Arisawa

Taijyu Gan

Yasunori Okano

Chisato Urano

Masahiro Sato

Yasuhiro Yamaguchi

Tomozumi Uesaka

A method for driving a light modulation element includes: applying light to the light modulation element in accordance with an image to be displayed on the light modulation element while applying a DC voltage between a pair of electrode layers of the light modulation element; and applying a pulse voltage having an opposite polarity to the DC voltage applied so far between the pair of electrode layers with the light being applied, and terminating the applying of the light when the applying of the pulse voltage is terminated. The applying of the light, the applying of the pulse voltage and the terminating of the applying of the light are executed sequentially.

Light modulation element, driving method and drive apparatus

A method for driving a liquid crystal device to record an image on the liquid crystal device is provided. The liquid crystal device has: a pair of electrodes; and a liquid crystal layer of cholestric liquid crystal sandwiched between the pair of electrodes. The method includes: applying a voltage Vhigher than a threshold value of a phase change to the homeotropic phase to make the liquid crystal layer to be in a homeotoropic phase; applying selectively two voltages VH and VL higher than the voltage Vto each portion of the liquid crystal layer; and applying a voltage Vunder a condition of such a magnification and application time that a portion to which the voltage VH has been applied changes to a planar phase and a portion to which the voltage VL has been applied changes to a focal conic phase.

Method apparatus for driving liquid crystal device and apparatus for driving liquid crystal device

A laminated body comprises: a particle dispersion layer comprising a first material and particles dispersed in the first material, the first material being changed from a gel state to a sol state upon increase in temperature; and a coated layer comprising a second material, the second material is changed from a gel state to a sol state upon increase in temperature, is changed from a gel state to a sol state upon decrease in temperature, and shows a hysteresis behavior in sol-gel change upon change in temperature, wherein the particle dispersion layer in a sol state and the coated layer in a gel state are laminated in contact with each other, and in a state where each of the particle dispersion layer and the coated layer contains a solvent, a maximum temperature Twhere the first material maintains a gel state is less than a maximum temperature Twhere the second material maintains a gel state upon increase in temperature (T&#x3c;T).

Laminated body containing particle dispersion layer, method for producing the same, and light modulation device

Sequentially performed are (1) an entire liquid crystal layer is initialized into a focal conic state, (2) an image is written onto the liquid crystal device by scanning with selecting exposure or non-exposure while applying a voltage that does not exceed a threshold value for a state change from the focal conic state to a homeotropic state during the non-exposure but exceeds the threshold value during the exposure and that causes the focal conic state and the homeotropic state to be bi-stable after the exposure, and (3) the application of the voltage is stopped to change a state of a portion, of which the state has changed to the homeotropic state, to the planer state. In (2), an electric field energy applied to an exposure portion of the liquid crystal layer is controlled to gradually increase from a start to an end of the series of scanning actions.

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Kanagawa, Japan

Makoto Gomyo