Liquid crystal compounds with branched or cyclic end groups
申请人:——
公开号:US20040206933A1
公开(公告)日:2004-10-21
The use of a mesogenic compound having a terminal end chain comprising carbon, oxygen, or sulphur, which has at least one pendent C
1-4
alkyl, C
1-4
alkoxy or a cycloalkyl ring, arranged no more than 6 atoms from the end of the chain either decreasing the melting point, increasing the clearing point, increasing the speed of switching and/or increasing the tilt angle of a liquid crystal mixture. Examples of such compounds are of formula (I) where M is a mesogenic core group, and X and Y are terminal groups, provided that at least one group X or Y is a group of sub-formula (i) where Z
1
, Z
2
, R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, s, q, m and n are as defined in the specification. Novel compounds of formula (I) are also described and claimed.
1
[EN] LIQUID CRYSTAL COMPOUNDS WITH BRANCHED OR CYCLIC END GROUPS<br/>[FR] COMPOSES A CRISTAUX LIQUIDES PRESENTANT DES GROUPES TERMINAUX RAMIFIES OU CYCLIQUES
申请人:QINETIQ LTD
公开号:WO2003024903A1
公开(公告)日:2003-03-27
The use of a mesogenic compound having a terminal end chain comprising carbon, oxygen, or sulphur, which has at least one pendent C1-4alkyl, C1-4alkoxy or a cycloalkyl ring, arranged no more than 6 atoms from the end of the chain either decreasing the melting point, increasing the clearing point, increasing the speed of switching and/or increasing the tilt angle of a liquid crystal mixture. Examples of such compounds are of formula (I) where M is a mesogenic core group, and X and Y are terminal groups, provided that at least one group X or Y is a group of sub-formula (i) where Z?1, Z2, R¿1, R2, R3, R4, R5, R6, R7, s, q, m and n are as defined in the specification. Novel compounds of formula (I) are also described and claimed.
[EN] LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT<br/>[FR] AGENT D'ALIGNEMENT DE CRISTAUX LIQUIDES, FILM D'ALIGNEMENT DE CRISTAUX LIQUIDES, ET ÉLÉMENT D'AFFICHAGE À CRISTAUX LIQUIDES<br/>[JA] 液晶配向剤、液晶配向膜及び液晶表示素子