发明名称 |
Birefringent optical film, elliptically polarizing plate using the same, and liquid crystal display using the same |
摘要 |
The present invention provides a birefringent optical film having a high orientation for easily obtaining a desired retardation value and also a small photoelastic coefficient. The birefringent optical film includes at least two kinds of polymer materials. A total of products of Cn and Wn satisfies a numerical formula (1): Sigma(CnxWn)<=30X10<-8 >cm<2>/N (1) where Cn and Wn denote respectively a photoelastic coefficient and a volume fraction of each polymer material, and at least one of the polymer materials of the film has a photoelastic coefficient value of at least 60x10<-8 >cm<2>/N.
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申请公布号 |
US2004202849(A1) |
申请公布日期 |
2004.10.14 |
申请号 |
US20030736978 |
申请日期 |
2003.12.17 |
申请人 |
NISHIKOUJI YUUICHI;MURAKAMI NAO;HAYASHI MASAKI;YOSHIMI HIROYUKI |
发明人 |
NISHIKOUJI YUUICHI;MURAKAMI NAO;HAYASHI MASAKI;YOSHIMI HIROYUKI |
分类号 |
B32B27/08;G02B5/30;(IPC1-7):B32B3/00 |
主分类号 |
B32B27/08 |
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