ACTIVE LIQUID CRYSTAL DIFFRACTION ELEMENT AND PHASE-MODULATING HOLOGRAPHIC DISPLAY
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Oct 1, 2015
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Sep 5, 2012
filing date -
Sep 5, 2012
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Abstract
An active liquid crystal diffraction element includes: a first transparent substrate; a second transparent substrate; a liquid crystal layer; a first electrode; a second electrode; a control member; and an alignment member, wherein the second electrode includes a plurality of small electrodes; the control member controls a magnitude of an electric voltage applied to each of the plurality of small electrodes; the alignment member confers a liquid crystal molecular alignment without any pre-tilt to the liquid crystal layer; and the liquid crystal molecular alignment is parallel to the surface of the first transparent substrate.
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