Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-03-23
2009-12-15
Heyman, John (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S106000, C349S176000
Reexamination Certificate
active
07633581
ABSTRACT:
A reflective colour display device comprising a display element including two opposed cell walls enclosing a layer of an electro-optic material, each cell wall being provided with at least one electrode on an inner surface thereof for applying an electric field across at least some of the electro-optic material, and a selective reflector on one of said cell walls, wherein the electro-optic material is electrically-switchable between a first state in which the display element will diffusely reflect substantially all wavelengths of visible light transmitted by the selective reflector, and a second state in which the display element will reflect light transmitted by the selective reflector at a substantially lower intensity than it does when the electro-optic material is in the first state.
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Hewlett--Packard Development Company, L.P.
Heyman John
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