Abstract

A ferroelectric liquid-crystal (FLC) color filter is described and experimentally demonstrated. The device consists of three polarizers and five smectic C* FLC cells. With the application of an appropriate electric field to each FLC cell, five outputs are observed. These consist of the three primary colors (red, green, and blue) along with white and black. With the rapid addressing speed of the FLC’s, the FLC color filter can be used for color display applications, such as backlighting FLC television.

© 1991 Optical Society of America

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