Liquid crystal color modulation displays with dyes of different

Details Liquid crystal color modulation displays with dyes of different Liquid crystal color modulation displays with dyes of different

1992-06-12

1994-02-22

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 40, 359 71, 359 85, 362 61, 345 87, G02F 1137, G09F 900

Patent

active

052893014

ABSTRACT:
Liquid crystal display apparatus is disclosed wherein a liquid crystal mixture having incorporated therein (a) a positive order parameter dye and a negative order parameter dye, or (b) a zero order parameter dye and a positive order parameter dye, or (c) a zero order parameter dye and a negative order parameter dye, is interposed between transparent electrodes secured to a transparent superstrate and a transparent substrate. An operating voltage wave ranging between 0 volts and an operating voltage which may be as high as 15.6 volts, and of variable frequency, is applied across the transparent electrodes to produce color changes of adjustable frequency in the liquid crystal mixture. Simultaneously, a square voltage wave of 35 Hz is applied across the transparent electrodes to prevent degradation of the liquid crystal mixture. Various modifications are shown which Produce a travelling wave of color changes of adjustable frequency across the liquid crystal display.

REFERENCES:
patent: 3781088 (1973-12-01), Tsukamoto et al.
patent: 3833287 (1974-09-01), Taylor et al.
patent: 3864022 (1975-02-01), Moriyama et al.
patent: 3960750 (1976-06-01), Moriyama et al.
patent: 3998510 (1976-12-01), Salisbury
patent: 4035060 (1977-07-01), Tsunoda et al.
patent: 4325610 (1982-04-01), Inoue
patent: 4357374 (1982-11-01), Ogawa
patent: 4360447 (1982-11-01), Morinaka et al.
patent: 4383737 (1983-05-01), Hifino et al.
patent: 4390245 (1983-06-01), Shimizu et al.
patent: 4411496 (1983-10-01), Nonomura et al.
patent: 4452511 (1984-06-01), Huffman
patent: 4506956 (1985-03-01), Dir
patent: 4556289 (1985-12-01), Ferguson
patent: 4561724 (1985-12-01), Otaki et al.
patent: 4581608 (1986-04-01), Aftergut et al.
patent: 4601547 (1986-07-01), Shingu
patent: 4616903 (1986-10-01), Ferguson
patent: 4620772 (1986-11-01), Sugimoto et al.
patent: 4624531 (1986-11-01), Wada et al.
patent: 4626073 (1986-12-01), Amstutz et al.
patent: 4630894 (1986-12-01), Cremers
patent: 4659181 (1987-04-01), Mankedick et al.
patent: 4664479 (1987-05-01), Hiroshi
patent: 4699470 (1987-10-01), McLaughlin et al.
patent: 4702559 (1987-10-01), Zondler et al.
patent: 4702561 (1987-10-01), Huffman
patent: 4707080 (1987-11-01), Ferguson
patent: 4737310 (1988-04-01), Imazeki et al.
patent: 4759611 (1988-09-01), Downey
patent: 4786268 (1988-11-01), Zondler et al.
patent: 4834508 (1989-05-01), Ferguson
patent: 4838659 (1989-06-01), Van Ewyle et al.
patent: 4878741 (1989-11-01), Ferguson
patent: 4886343 (1989-12-01), Johnson
patent: 4922239 (1990-05-01), Kugo et al.
patent: 4935160 (1990-06-01), Schemble et al.
patent: 4948232 (1990-08-01), Lange
patent: 4950052 (1990-08-01), Ferguson
patent: 4953953 (1990-09-01), Ferguson
patent: 4957350 (1990-08-01), Ito et al.
patent: 4985816 (1991-01-01), Seko et al.
patent: 5015074 (1991-05-01), Clerc et al.
patent: 5026505 (1991-08-01), Kaneko et al.
patent: 5228767 (1993-07-01), Johnson
"Field-induced Color Switching in Liquid Crystal Displays", M. Schadt, J. Chem. Phys., 71 (6) pp. 2336-2344, 15 Sep. 1979, U.S.A.
"Anthraguinone Dyes Exhibiting the Negative Dichroism in Liquid Crystals", A. V. Ivasheako et al., Mol. Cryst. Liq. Cryst., vol. 129, pp. 277-283, 1985, U.S.A.
"New Absorptive Mode Reflective Liquid-Crystal Display Device", D. L. White et al., Journal of Applied Physics, vol. 45, No. 11, pp. 4718-4723, Nov. 1874, U.S.A.
"Dyes in Liquid Crystals", A. V. Ivashenko et al., Molecular Crystals and Liquid Crystals, Sep. 1987, U.S.A., pp. 106-126.
"Flexible LDD is Lighter and Thinner than Glass", J. D. Mosely, EDN, Oct. 31, 1985, p. 93.

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