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    • 3. 发明申请
    • METHOD AND SYSTEM FOR EVALUATING OPTICAL PROPERTIES OF COMPENSATION LAYER
    • 评估补偿层光学性质的方法和系统
    • US20100110432A1
    • 2010-05-06
    • US12520203
    • 2008-02-20
    • Kazuto YamagataShusaku NakanoTsuyoshi KashimaRie HayashiuchiToshimasa NishimoriMasayo HiroseHidetoshi Maikawa
    • Kazuto YamagataShusaku NakanoTsuyoshi KashimaRie HayashiuchiToshimasa NishimoriMasayo HiroseHidetoshi Maikawa
    • G01J4/00
    • G01N21/211G02B5/3083
    • A compensation layer optical property evaluation method capable of precisely and accurately evaluating the optical properties of the compensation layer without separating the compensation layer from the optical film, namely without causing a breakage of the compensation layer or a change in the optical properties, and to provide a compensation layer optical property evaluation system for use in such a method. The method for evaluating the optical properties of a compensation layer in an optical film comprising at least a polarizer and the compensation layer placed thereon, comprising the steps of: preparing the optical property data that represent the relationship between the ellipticity of polarized light and optical properties of the compensation layer, wherein the optical properties include front retardation R0, thickness retardation Rth, bonding angle θ, and average tilt angle β; measuring the ellipticity of polarized light through a sample of the optical film,; extracting the optical property data equal or close to the measured ellipticity of the polarized light from the data prepared in the data preparing step.
    • 一种补偿层光学特性评估方法,其能够精确而准确地评估补偿层的光学性质而不将补偿层与光学膜分离,即不引起补偿层的破损或光学性质的变化,并且提供 用于这种方法的补偿层光学性能评估系统。 用于评估光学膜中的补偿层的光学性质的方法,该光学膜包括至少一个偏振片和置于其上的补偿层,包括以下步骤:准备表示偏振光的椭圆率与光学特性之间的关系的光学特性数据 其中光学特性包括前向延迟R0,厚度延迟Rth,接合角度和平均倾角&bgr;; 通过光学膜的样品测量偏振光的椭圆率; 从数据准备步骤中准备的数据中提取与所测量的偏振光的椭圆率相等或接近的光学性质数据。