Stock material or miscellaneous articles – Composite – Of bituminous or tarry residue
Patent
1988-03-09
1990-01-16
Miller, Stanley D.
Stock material or miscellaneous articles
Composite
Of bituminous or tarry residue
350334, 350351, 428 1, G02F 1133, C09K 1900
Patent
active
048939064
ABSTRACT:
In a display device, planar or curved, panel or colored pane it is known that the image or the colors do not change noticeably with the angle of viewing or angle of illumination. In this invention drastic changes in the image and colors can be obtained using cholesteric or other chiral liquid crystal coatings or polymers with liquid crystalline properties. In addition the colors are more intense than feasible with other colorants. These two properties are value in applications where it is desired to attract the viewers attention such as in advertising and signage. In a colored pane consisting of ornamental or stained glass parts it is known that the process of achieving the desired image effects is not simple and limited in scope. Using liquid crystal coatings the process of achieving such effects is greatly simplified and less expensive. By providing two or more liquid crystal coatings on transparent substrates overlaying each other new colors and three-dimensional effects can be obtained as a result of the color additive properties of liquid crystals coatings which do not absorb light.
REFERENCES:
patent: 3533399 (1970-10-01), Goldberg et al.
patent: 3666948 (1972-05-01), Mechlowitz et al.
Licristal.TM. Liquid Crystals by EM Laboratories Inc., Dec. 1972.
Gross Anita P.
Miller Stanley D.
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