Title:
FERROELECTRIC LIQUID CRYSTAL COMPOSITION AND DISPLAY ELEMENT USING THE SAME
Document Type and Number:
Japanese Patent JP3541437
Kind Code:
B2
Abstract:
PURPOSE: To obtain a ferroelectric liquid crystal composition which is composed of a mixture of a specific liquid crystal compound of high molecular weight with a ferroelectric liquid crystal compound of low molecular weight, thus is useful as a display and an electronic shutter or the like because of its quick response, memory characteristics, shock resistance or the like.
CONSTITUTION: This composition comprises (A) a liquid crystal compound of high molecular weight having recurring units of formula I [A and B are each 1,4-phenylene, 2,5-pyridine or either A or B is a single bond; X1-X3 are H, a lower alkyl; R1 is a (halogen-substituted) 1 20C alkyl, a (halogen-substituted) 2-20C alkoxyalkyl; X is -CH2CH2-; q is an integer of 1-15; r is an integer of 0-6; s is 0, 1; * is an asymmetric carbon atom] and 1,000-50,000 number-average molecular weight and (B) a ferroelectric liquid crystal compound, preferably of formula II (R2 is a 3-20C alkyl; R3 is a (halogen-substituted) 1-20C alkyl; U is -O-, -CH2CH2-; W is -COO-; Z is -O-, -COO-; K is 0, 1].
Inventors:
Yoshiaki Tsubata
Kayoko Ueda
Koichi Fujisawa
Takayuki Higashii
Masayoshi Minami
Kayoko Ueda
Koichi Fujisawa
Takayuki Higashii
Masayoshi Minami
Application Number:
JP14486794A
Publication Date:
July 14, 2004
Filing Date:
June 27, 1994
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
G02F1/137; C09K19/20; C09K19/34; C09K19/38; C09K19/42; C09K19/44; C09K19/46; G02F1/13; G02F1/141; (IPC1-7): C09K19/38; C09K19/20; C09K19/34; C09K19/42; C09K19/44; C09K19/46; G02F1/13
Domestic Patent References:
| JP5140233A | ||||
| JP646088A | ||||
| JP4268389A | ||||
| JP2202981A |
Attorney, Agent or Firm:
Takashi Kuboyama