Patent ID: 6757039
Filing Date: 2004-06-29
Classification: A61N,G02F,H01R,Y10S

Abstract:
A reflective paper white display comprising:a. an absorptive elliptical polarizer, and b. a reflective elliptical polarizer with a polarity the same as the absorptive elliptical polarizer, and c. a darkening layer, and d. a plurality of transparent conductive patterned substrates juxtaposed to form a cell structure, and e. a cholesterics material with predetermined polarity and with at least one controllable optical ON texture and at least one controllable OFF texture respectively, and f. the cell structure enclosing the cholesteric material within inside surfaces, attaching the absorptive elliptical polarizer on the front outside surface and the reflective elliptical polarizer on the back outside surface, and combining the darkening layer at the utmost back side of the structure, whereby a paper white ON state will be displayed in the controllable optical ON texture area of the cholesterics;whereby a black OFF state will be displayed in the controllable optical OFF texture area of the cholesterics.