4-Membered ring compound and optical phase optical retardation plate using the same
申请人:——
公开号:US20030102458A1
公开(公告)日:2003-06-05
A 4-membered compound is represented by the following formula (I) is disclosed (in the formula, X
1
and X
2
each independently represent an oxygen atom, a sulfur atom or a substituted or unsubstituted imino group, Y
1
and Y
2
each independently represent a single bond, an oxygen atom or a substituted or unsubstituted imino group, B
1
and B
2
each independently represent an optionally substituted aliphatic, aliphatic carbonyl, aromatic or aromatic carbonyl group having 1-20 carbon atoms, and A
1
and A
2
each independently represent a group represented by the following formula (II) (Ar
1
, Ar
2
and Ar
3
each independently represent a cyclic group having 5-14 carbon atoms, L
1
and L
2
each independently represent a single bond or a divalent linking group, and p represents an integer of 0-2)). There is also disclosed a birefringence medium containing a 4-membered compound represented by the formula (I) and an optical element comprising the birefringence medium.
1
公开了下式(I)所代表的四元化合物(式中,X
1
和 X
2
各自独立地代表一个氧原子、一个硫原子或一个取代或未取代的亚氨基,Y
1
和 Y
2
各自独立地代表单键、氧原子或取代或未取代的亚氨基,B
1
和 B
2
各自独立地代表具有 1-20 个碳原子的任选取代的脂肪族、脂肪族羰基、芳香族或芳香族羰基,以及 A
1
和 A
2
各自独立地代表下式(II)所代表的基团(Ar
1
,Ar
2
和 Ar
3
各自独立地代表一个具有 5-14 个碳原子的环状基团,L
1
和 L
2
各自独立地代表单键或二价连接基团,且 p 代表 0-2 的整数)。本发明还公开了一种双折射介质,其中含有由式(I)代表的 4 元化合物,以及一种包含该双折射介质的光学元件。
1