One pixel full color display device using cholesteric mixture

Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only

Reexamination Certificate

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C349S141000

Reexamination Certificate

active

11201089

ABSTRACT:
A LCD device (200) is disclosed that has a cholesteric compound layer (205), a backplane light (201), and one or more polarizers (203, 209) and liquid crystal smectic C* layers. The cholesteric compound layer (205) transmits elliptically polarized light having an amount of absorbance which is related to the angular rotation of the polarization. One or more of the liquid crystal smectic C* layers may be controlled as a polarization filter to select the apparent color of the transmitted light.

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patent: 7075604 (2006-07-01), Yano et al.

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