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发明授权
CN101163997B 光学膜、偏振片和液晶显示器 有权

光学膜、偏振片和液晶显示器
摘要：
本发明提供了一种包含透明聚合物膜的光学膜。该光学膜至少具有从0.10到0.95的由Re(450)/Re(550)定义的A1值和从1.01到1.50的由Re(650)/Re(550)定义的A2值。Re(？)代表相对？nm波长的光膜的延迟值；并且Rth(？)代表相对？nm波长的光膜在厚度方向上的延迟值。
摘要（英）：

An optical film is provided and includes a transparent polymer film. The optical film has at least an A1 value defined by Re (450)/Re (550) of from 0.10 to 0.95 and A2 value defined by Re (650)/Re (550) of from 1.01 to 1.50. Re () represents the retardation value of the film with respect to light having a wavelength of nm; and Rth () is the retardation value in the thickness direction of film with respect to light having a wavelength of nm.

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