1977-03-11
1978-06-27
Bauer, Edward S.
350349, G02F 113
Patent
active
040971309
ABSTRACT:
A transmissive liquid crystal display actuatable to provide each of a plurality of different colors utilizes at least one parallel-nematic or twisted-nematic liquid crystal cell each having a dichroic dye dissolved therein for absorbing light each of a different color. The cells are sequentially arranged between a pair of polarizing elements have their axes of polarization perpendicular to one another. The polarizing element nearest an observer contains a dichroic dye for absorbing an additional wavelength (color) of visible light and may be selectively actuatable. By energizing different combinations of the cells from their quiescent to active conditions, different combinations of visible light wavelengths are absorbed to change the color of light transmitted through the display. Maximum-color displays, providing up to 2.sup.N different colors (wherein N is the number of activatable liquid crystal elements) utilize one or two twisted-nematic liquid cells closest to the dichroic exit polarizer, with the remainder of the active liquid crystal cells being of the parallel nematic type.
REFERENCES:
patent: 3864022 (1975-02-01), Moriyama et al.
patent: 3900248 (1975-08-01), Nagasaki
patent: 3967881 (1976-07-01), Moriyama et al.
patent: 4019808 (1977-04-01), Scheffer
patent: 4025164 (1977-05-01), Doriguzzi et al.
Bauer Edward S.
Cohen Joseph T.
General Electric Company
Krauss Geoffrey H.
Snyder Marvin
LandOfFree
Multi-colored liquid crystal displays does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-colored liquid crystal displays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-colored liquid crystal displays will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2301490