Tunable color filter

Details Tunable color filter Tunable color filter

1995-03-22

1997-11-18

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349 80, G02F 11335, G02F 11347

Patent

active

056893175

ABSTRACT:
A color filter having an optical switch element located between a neutral linear polarizer and a second color-selective linear polarizer, followed by one or more optical retarders and a second neutral linear polarizer. When a second optical switch element is incorporated, three color states are produced. The filter may also comprise a guest host type cell as the optical switch element. The resulting color filter exhibits high performance both for on-axis and off-axis rays and can be designed to produce a wide range of colors.

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Yariv et al., Optical Waves in Liquid Crystals, Chapter 5.

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