Complementary color liquid crystal display

Details Complementary color liquid crystal display Complementary color liquid crystal display

1993-05-03

1994-09-06

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 52, 359 66, G02F 1133

Patent

active

053453220

ABSTRACT:
A liquid crystal color device (10) includes at least one pel (14) for affecting light (36) incident thereon to produce output light (38), the pel includes three complementary color subsets (30, 32, 34), each having controllable color filtering capability in the respective complementary colors thereof. The color subsets are arranged in optical additive relation, and the color subsets include complementary color parts (30a, 30b, 32a, 32b, 34a, 34b) which are arranged, respectively, in optical serial/subtractive relation. The color filtering function is carried out using liquid crystal materials with respective pleochroic dyes. A method of parametric color control of a liquid crystal device, formed of plural picture elements, each picture element including plural pairs of complementary color filters, comprising directing light to or through an array of such electrically controllable pairs of complementary color filters, and controlling the filtering characteristics of at least one of such filters.

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