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发明授权
CN1912660B 偏光膜以及具有该偏光膜的显示装置 有权 转让

偏光膜以及具有该偏光膜的显示装置
摘要：
一种偏光膜，包括第一和第二保护层以及在它们之间的偏光层。偏光层形成在第一保护层上。第二保护层形成在偏光层上。第二保护层沿着与第二保护层厚度相对应的方向(厚度方向，thickness-wise？direction)具有约110nm至约200nm的延迟值，其中，沿厚度方向的延迟值Rth用下式进行表达：Rth＝d(nx-nz)，其中，“d”表示第二保护层的厚度，nx表示沿x方向的折射率，以及nz表示沿z方向的折射率。因此，由于昂贵的补偿膜可以仅附着在LCD面板的一个表面上，所以降低了制造显示装置的成本。另外，解决了色偏(color？shift)问题，从而提高了显示质量。
摘要（英）：

A polarizing film includes a first and second protecting layer and a polarizing layer therebetween. The polarizing layer is formed on the first protecting layer. The second protecting layer is formed on the polarizing layer. The second protecting layer has a retardation value of about 110 nm to about 200 nm along a direction corresponding to a thickness of the second protecting layer (a thickness-wise direction), wherein the retardation value Rth along the thickness-wise direction is expressed by the following equation: Rth=d(nx-nz), wherein ''d'' represents the thickness of the second protecting layer, nx represents a refractive index along an x-direction, and nz represents a refractive index along a z-direction. Therefore, a cost of manufacturing a display device is reduced because an expensive compensating film may be attached to only one surface of the LCD panel. Furthermore, a color shift problem is solved to enhance a display quality.

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