发明名称 |
ISOTROPIC LAYER OF MULTILAYER OPTICAL FILM COMPRISING BIREFRINGENT THERMOPLASTIC POLYMER |
摘要 |
Multilayer optical films are described comprising at least one first optical layer comprising a birefringent thermoplastic polymer having an in-plane birefringence of at least 0.15 at 632.8 nm; and at least one second optical layer having an in-plane birefringence of less than 0.040 at 632.8 nm. The second optical layer comprises a copolymerized blend of at least one birefringent thermoplastic polymer and at least one second thermoplastic polymer. |
申请公布号 |
US2010124667(A1) |
申请公布日期 |
2010.05.20 |
申请号 |
US20080273006 |
申请日期 |
2008.11.18 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
LIU YUFENG;JOHNSON STEPHEN A. |
分类号 |
G02B5/30;B32B5/00 |
主分类号 |
G02B5/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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