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US 6,646,700 B2Granted
Monochrome liquid crystal display device utilizing a color filter for changing the spectrum of light emitted from a liquid crystal panel
AssigneeAgfa-Gevaert
InventorsDirk Vermeylen, Paul Wouters
Life of this patent
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Abstract
A monochrome liquid crystal display device comprises a layer of liquid crystals (1) and a light source (6) arranged for uniformly illuminating the liquid crystal layer. A color filter (8) is provided for changing the spectrum of the light emitted by the liquid crystal display device.
Claims6
A monochrome liquid crystal display device comprising
- a liquid crystal panel comprising a layer of liquid crystals,
- a light source arranged for uniformly illuminating said layer of liquid crystals,
- an electrode assembly enabling addressing of said layer of liquid crystals, said addressing being controlled by an electronic signal representation of an image to be displayed,
- a color filter for changing the spectrum of the light emitted by said liquid crystal panel, wherein said color filter is a base of a blue base photographic film.
1 more element
Dependencies are inferred from the claim text.