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US 4,425,029 AGranted
Fluorescent liquid crystal display devices
AssigneeSharp Kabushiki Kaisha
InventorsFumiaki Funada, Masataka Matsuura, Tomio Wada
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Abstract
A fluorescent liquid crystal display of the type for reflecting radiation comprises a fluorescent material contained within a liquid crystal material for providing fluorescence in response to absorbance, and a filter element for reflecting at least one of the fluorescence and the absorbance and, if necessary, for showing low reflection in connection with radiation except for the at least one of the fluorescence and the absorbance to thereby enhance display contrast of the display.
Claims4
A fluorescent liquid crystal display of the type for reflecting radiation comprising:
- a fluorescent material contained within a liquid crystal material for providing fluorescence in response to absorbance, the wavelength band of the fluorescence being apart from that of the absorbance absorbed by the fluorescent material;
- and
- filter means for reflecting the absorbance and the fluorescence to enhance display contrast of the fluorescent liquid crystal display.
Dependencies are inferred from the claim text.