申请人:Uehira Shigeki
公开号:US20100045901A1
公开(公告)日:2010-02-25
A compound of formula (1): wherein A
1
and A
2
are —O—, —NR—, —S—, or —CO—, in which R is a hydrogen atom or substituent; Z is one or two atoms selected from a carbon atom or a non-metal atom of Group 14, 15 or 16 in the Periodic Table, and forms a five- or six-membered ring with the C—C═C—C or C═C—C═C; R
1
, R
2
, and R
3
each are a substituent; m is an integer of 0 to 4; L
1
and L
2
are a single bond or divalent linking group; X is a non-metal atom of Group 14, 15 or 16 in the Periodic Table, and may have a hydrogen atom or R
4
; and at least one of R, R
1
, R
2
, R
3
, and R
4
is substituted with a polymerizable group; a liquid crystal composition, an optical film, a retardation sheet, a polarizing plate, and a liquid crystal display.