Pollak; Blumenstock-Halward, Monatshefte fur Chemie, 1928, vol. 49, p. 204
作者:Pollak、Blumenstock-Halward
DOI:——
日期:——
DE278091
申请人:——
公开号:——
公开(公告)日:——
Optical film and optical compensatory film, polarizing plate and liquid crystal display using same
申请人:Nakayama Hajime
公开号:US20070190268A1
公开(公告)日:2007-08-16
An optical film is provided and contains at least one of a polycarbonate copolymer and a blend containing the polycarbonate copolymer. The polycarbonate copolymer contains specific repeating units. The optical film satisfies the following formulae (1) to (4).
0.1<
Re
(
450
)/
Re
(
50
)<
0.95
(
1
)
1.03<
Re
(
650
)/
Re
(
550
)<
1.93
(
2
)
0.4<
(
Re
(
450
)/
Rth
(
450
))/(
Re
(
550
)/
Rth
(
550
))<
0.95
(
3
)
1.05<
(
Re
(
650
)/
Rth
(
650
))/(
Re
(
550
)/
Rth
(
550
))<
1.90
(
4
)