Liquid crystal optical element and method for fabricating...

Details Liquid crystal optical element and method for fabricating... Liquid crystal optical element and method for fabricating...

2006-01-10

2006-01-10

Nguyen, Dung T. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

Reexamination Certificate

active

06985200

ABSTRACT:
A liquid crystal optical element includes: first and second substrates; a liquid crystal layer provided between the substrates; first and second electrode layers provided on the first and second substrates, respectively, so as to face each other with the liquid crystal layer interposed between them; and first and second switching layers, which are provided between the first electrode layer and the liquid crystal layer and between the second electrode layer and the liquid crystal layer, respectively, and each of which includes molecules changing their orientation directions in response to a voltage applied between the first and second electrode layers. The liquid crystal layer changes its orientation state as the molecules in the first and second switching layers change their orientation directions. Each of the molecules included in one of the first and second switching layers and an associated one of the molecules included in the other switching layer behave as enantiomers.

REFERENCES:
patent: 5745207 (1998-04-01), Asada et al.
patent: WO 00/03288 (2000-01-01), None
Asako Ikeda et al.; Influence of the Optical Purity on the Smectic Layer Thickness and the Transition Order in Enantiomeric Mixtures of an Antiferroelectric Liquid Crystal; Japanese Journal of Applied Physics; vol. 30, No. 6A; Jun. 1991; pp. L1032-L1035.

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