1978-01-30
1980-04-08
Bauer, Edward S.
40441, 40448, G02F 113
Patent
active
041969766
ABSTRACT:
A multi-colored illuminated display device whereby colors are constantly changing due to small variations of temperature in the air moving about a contoured sheet of encapsulated cholesteric phase liquid crystal-coated polymeric film situated in a clear, colorless chimney. The rear interior surface of the chimney is coated to prevent the transmission of light therethrough, thus enhancing the reflected colors on the viewing faces. A source of heat and light such as a light bulb is used at the base. The heat rises by convection assisted by louvres or a small low speed fan may be installed. Many colorful designs may be achieved by varying the shape of the liquid crystal sheel and the range of heat temperatures used.
REFERENCES:
patent: 3732119 (1973-05-01), Churchill et al.
patent: 3802945 (1974-04-01), James
patent: 3852092 (1974-12-01), Patterson et al.
patent: 3908052 (1975-09-01), Sanders
Bauer Edward S.
Cannon James J.
Cannon, Jr. James J.
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