Liquid crystal cells – elements and systems – Cell containing liquid crystal of specific composition
Patent
1997-03-27
2000-05-02
Kelly, C H
Liquid crystal cells, elements and systems
Cell containing liquid crystal of specific composition
2522991, G02F 113, C09K 1900
Patent
active
060579064
ABSTRACT:
A liquid crystal display device which comprises, a pair of substrates facing to each other and each provided with an electrode, the electrode provided on one of the substrates being faced to the electrode provided on the other substrate, and a liquid crystal layer sandwiched between the pair of substrates, wherein the liquid crystal layer contains as a main component a liquid crystal having a dichroic dye molecule dissolved therein, the dichroic dye molecule having at least one group selected from the group consisting of thiocarbonyl group, thioester group, dithioester group, selenocarbonyl group, selenoester group and diselenoester group. The liquid crystal layer may contain a first compound which is proton-donative and a second compound which is proton-acceptive which are dissolved therein, the first compound being linked via a hydrogen bonding with the second compound, and at least one of the first compound and the second compound exhibiting an absorption in the visible light range.
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Iwanaga Hiroki
Naito Katsuyuki
Kabushiki Kaisha Toshiba
Kelly C H
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