Global Patent Index - EP 0946672 A1

EP 0946672 A1 19991006 - LIQUID CRYSTAL MATERIALS

Title (en)

LIQUID CRYSTAL MATERIALS

Title (de)

FLÜSSIGKRISTALLMATERIALIEN

Title (fr)

MATERIAUX POUR CRISTAUX LIQUIDES

Publication

EP 0946672 A1 19991006 (EN)

Application

EP 97939250 A 19970911

Priority

  • KR 9700169 W 19970911
  • US 71539396 A 19960912

Abstract (en)

[origin: WO9811173A1] Chiral liquid crystalline compounds of Formula (1): R<1>-(A')a-2<1>-(A<2>)b-(2<2>)c-(A<3>)d-R<2> are particularly useful in a ferroelectric liquid crystal display device. These cyclic-containing compounds are chiral and contain lateral substituents. The compounds exhibit a low temperature smectic C phase and have a broad smectic C phase region.

IPC 1-7

C09K 19/10; C09K 19/38; C07C 43/184; C07C 43/205; C07C 43/21; G02F 1/137

IPC 8 full level

G02F 1/13 (2006.01); C07C 43/20 (2006.01); C07C 43/205 (2006.01); C07C 43/21 (2006.01); C07C 43/215 (2006.01); C07C 43/225 (2006.01); C07C 43/23 (2006.01); C07C 45/62 (2006.01); C07C 45/67 (2006.01); C07C 49/657 (2006.01); C07C 49/683 (2006.01); C07C 49/753 (2006.01); C07C 69/013 (2006.01); C07C 255/46 (2006.01); C07D 213/00 (2006.01); C09K 19/04 (2006.01); C09K 19/10 (2006.01); C09K 19/12 (2006.01); C09K 19/30 (2006.01); C09K 19/38 (2006.01); C09K 19/42 (2006.01)

CPC (source: EP KR)

C07C 43/215 (2013.01 - EP); C07C 43/225 (2013.01 - EP); C07C 43/23 (2013.01 - EP); C07C 45/62 (2013.01 - EP); C07C 45/676 (2013.01 - EP); C07C 49/657 (2013.01 - EP); C07C 49/683 (2013.01 - EP); C07C 49/753 (2013.01 - EP); C07C 69/013 (2013.01 - EP); C09K 19/04 (2013.01 - EP); C09K 19/12 (2013.01 - KR); C09K 19/126 (2013.01 - EP); C09K 19/3003 (2013.01 - EP); C09K 19/3098 (2013.01 - EP); C09K 19/42 (2013.01 - EP); C07C 2601/14 (2017.04 - EP); C07C 2601/16 (2017.04 - EP)

Citation (search report)

See references of WO 9811173A1

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9811173 A1 19980319; AU 4138097 A 19980402; EP 0946672 A1 19991006; JP 2001500502 A 20010116; KR 20000036036 A 20000626

DOCDB simple family (application)

KR 9700169 W 19970911; AU 4138097 A 19970911; EP 97939250 A 19970911; JP 51351998 A 19970911; KR 19997002026 A 19990310