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    • 12. 发明申请
    • IMAGE DISPLAY DEVICE
    • 图像显示设备
    • US20110128477A1
    • 2011-06-02
    • US12949952
    • 2010-11-19
    • Akinori IzakiSeiji UmemotoShouji YamamotoKentarou TakedaMitsuru Suzuki
    • Akinori IzakiSeiji UmemotoShouji YamamotoKentarou TakedaMitsuru Suzuki
    • G02F1/1335
    • H01L51/5275G02B1/105G02B1/14G02B5/3083H01L51/5253
    • Provided is an image display device including an image display cell and a polarizing plate placed on a viewer side of the image display cell. The first polarizing plate includes a polarizer and a first protective film. The first protective film is placed on a viewer-side principal surface of the polarizer and satisfies following relations: (i) 0 nm≦Re1≦3000 nm; (ii) Nz1≧7; and (iii) Rth1>2500 nm. Re1, Rth1 and Nz1 are defined by following equations: Re1=(nx1−ny1)d1; Rth1=(nx1−nz1)d1; and Nz1=Rth1/Re1, wherein d1 represents a thickness of the first protective film, nx1 represents a refractive index in a direction of an in-plane slow axis of the protective film, ny1 represents a refractive index in a direction of an in-plane fast axis of the protective film, and nz1 represents a refractive index in a direction of the thickness of the protective film.
    • 提供了一种图像显示装置,包括放置在图像显示单元的观察者侧的图像显示单元和偏振板。 第一偏振板包括偏振器和第一保护膜。 第一保护膜放置在偏振片的观察者侧主表面上,并且满足以下关系:(i)0nm≦̸ Re1≦̸ 3000nm; (ii)Nz1≥7; 和(iii)Rth1> 2500nm。 Re1,Rth1和Nz1由以下等式定义:Re1 =(nx1-ny1)d1; Rth1 =(nx1-nz1)d1; Nz1 = Rth1 / Re1,其中d1表示第一保护膜的厚度,nx1表示保护膜的面内慢轴方向的折射率,ny1表示保护膜的面内慢轴的折射率, 保护膜的平面快轴,nz1表示保护膜的厚度方向的折射率。