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发明申请
US20060001799A1 Method of producing elliptically polarizing plate and image display using the elliptically polarizing plate 审中-公开
使用椭圆偏光板制造椭圆偏光板的方法和图像显示

Method of producing elliptically polarizing plate and image display using the elliptically polarizing plate
摘要：
The present invention provides: a method of producing a broadband and wide viewing angle elliptically polarizing plate having excellent characteristics in an oblique direction as well; and an image display using the elliptically polarizing plate obtained through the method. The method of producing an elliptically polarizing plate according to the present invention includes the steps of: subjecting a surface of a transparent protective film to alignment treatment; forming a first birefringent layer by applying a liquid crystal composition onto the surface of the transparent protective film subjected to the alignment treatment; laminating a polarizer on a surface of the transparent protective film opposite to the surface subjected to the alignment treatment; and forming a second birefringent layer by laminating a polymer film on a surface of the first birefringent layer, in which the elliptically polarizing plate has a relationship represented by the following expression (1) 2α+40°
摘要（中）：

本发明提供一种在倾斜方向上具有优异特性的宽带宽视角椭圆偏光板的制造方法。 以及使用通过该方法获得的椭圆偏光板的图像显示。 根据本发明的椭圆偏光板的制造方法包括以下步骤：对透明保护膜的表面进行取向处理; 通过将液晶组合物施加到经过取向处理的透明保护膜的表面上来形成第一双折射层; 在与所述取向处理的表面相对的所述透明保护膜的表面上层叠偏振片; 并且通过在第一双折射层的表面上层叠聚合物膜来形成第二双折射层，其中椭圆偏振片具有由以下表达式（1）表示的关系<？in-line-formula description =“In-line 公式“end =”lead“？> 2alpha + 40° ）中，α表示偏振片的吸收轴与透明保护膜的取向方向之间的角度，β表示偏振片的吸收轴与第二双折射层的慢轴之间的角度。

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