Title:
LIQUID CRYSTAL DEVICE AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3928748
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To decrease the difference in transmittance between when increasing and when decreasing voltage, namely, to decrease hysteresis, and to obtain high resistance and voltage holding rate by using a transparent solid material produced by polymn. of a polymerizable compsn. containing polymerizable monomers having optically active groups.
SOLUTION: This device consists of two substrates having electrode layers at least one of which is transparent and a light-controlling layer held between the substrates. The light-controlling layer contains a liquid crystal material and a transparent solid material. The transparent solid material is produced by polymn. of a polymerizable compsn. containing polymerizable monomers having optically active groups. In this method, the polymerizable monomers having optically active groups can be easily produced from cyclic alcohols, phenol or aromatic hydroxy compds. having a liquid crystal skeleton having optically active groups and at least two six-member rings as a part of the structure by making into (meth)acryl by a usual method.
Inventors:
Takeshi Kuriyama
Hiroshi Hasebe
Hiroshi Ogawa
Kiyofumi Takeuchi
Hiroshi Hasebe
Hiroshi Ogawa
Kiyofumi Takeuchi
Application Number:
JP22121096A
Publication Date:
June 13, 2007
Filing Date:
August 22, 1996
Export Citation:
Assignee:
Dainippon Ink and Chemicals Co., Ltd.
International Classes:
G02F1/1333; C08F20/30; C08F20/34; C09K19/38; C09K19/54; G02F1/13; (IPC1-7): G02F1/1333; C08F20/30; C08F20/34; C09K19/38; C09K19/54; G02F1/13
Domestic Patent References:
| JP8190086A | ||||
| JP5281521A | ||||
| JP5150229A | ||||
| JP7258638A | ||||
| JP7110469A |
Foreign References:
| WO1993008497A1 |
Attorney, Agent or Firm:
Kono Tsuyo