DISCOTIC NEMATIC MATERIAL, COMPOSITION, RETARDATION PLATE, ELLIPTICALLY-POLARIZING PLATE AND COMPOUND
申请人:Takahashi Makoto
公开号:US20090068378A1
公开(公告)日:2009-03-12
A discotic nematic material comprising a compound of R
1
—H
1
—Ar—H
2
—R wherein Ar represents a substituted or unsubstituted aromatic hydrocarbon ring; H
1
and H
2
represent an aromatic hetero ring; and R
1
and R
2
represent a substituent having from 1 to 30 carbon atoms. The discotic nematic material contains a discotic liquid-crystal compound having a smaller number of side branches and capable of expressing an N
D
phase.
US7968157B2
申请人:——
公开号:US7968157B2
公开(公告)日:2011-06-28
Slotta; Kethur, Chemische Berichte, 1938, vol. 71, p. 335,338