Recording device

Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal

Reexamination Certificate

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Details

C349S002000, C349S019000, C349S024000, C349S025000, C349S033000

Reexamination Certificate

active

07920218

ABSTRACT:
A recording device that includes an obtainment unit that obtains image information representing an image; and a voltage application unit that applies a voltage with a frequency according to the image information obtained by the obtainment unit, to a pair of electrodes equipped with a display medium, the display medium having a multi-layered liquid-crystal phase provided between the pair of electrodes, the multi-layered liquid-crystal phase having a first layer capable of assuming a specific alignment when the applied voltage is greater than or equal to a pre-set first voltage threshold, and a second layer capable of assuming a specific alignment when the applied voltage is greater than or equal to a second voltage threshold. An application of a voltage to the pair of electrodes effecting a first voltage component and a second voltage component applied to the first layer and the second layer, respectively.

REFERENCES:
patent: 6580481 (2003-06-01), Ueda et al.
patent: 6773626 (2004-08-01), Sanada et al.
patent: A-7-225369 (1995-08-01), None
patent: A-2000-111942 (2000-04-01), None
patent: A-2004-198949 (2004-07-01), None

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