Color liquid crystal display devices

Details Color liquid crystal display devices Color liquid crystal display devices

2006-12-26

2006-12-26

Le, Thien M. (Department: 2876)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S077000, C349S053000

Reexamination Certificate

active

07154574

ABSTRACT:
A color liquid crystal display device has an array of display pixels (10) for modulating input light and an array of associated color filter elements (40) which comprise electro-optic filtering elements switchable electrically between a color filtering state in which a required color output is produced and a state in which they are substantially transparent to the input light. Such switching can be used beneficially, for example to reduce power consumption by sacrificing full color output and allowing the brightness level of a back light to be decreased in view of the increased optical efficiency of the pixels when the filter elements are in their transparent state, or to improve viewability in the case of a reflective display used in poor ambient lighting.

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