Guest-host liquid crystal display device

Details Guest-host liquid crystal display device Guest-host liquid crystal display device

1979-11-16

1981-06-09

Bauer, Edward S.

350341, 350347R, G02F 1137

Patent

active

042721628

ABSTRACT:
A guest-host liquid crystal display device which employs a pleochroic liquid crystal mixture having helical molecular ordering. To prevent the occurrence of a light-scattering turbid texture the helical molecular ordering is converted into a miss-matching state of an increased strain energy by a proper combination of surface alignment treatments applied to the facing surfaces of a pair of transparent plates that sandwich the liquid crystal layer.

REFERENCES:
patent: 3833287 (1974-09-01), Taylor et al.
patent: 4084884 (1978-04-01), Raynes
patent: 4097128 (1978-06-01), Matsumoto et al.
Cole et al. "Dependence of Absorption and Optical Contrast of a Dichroic Dye Guest on the Pitch of a Chiral Nematic Host", Applied Physics Letters, vol. 31, pp. 58-59, Jul. 15, 1977.

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