Invention Grant
US09229142B2 Optical film, polarizing plate, liquid crystal display, and method of manufacturing optical film 有权
光学薄膜,偏光板,液晶显示器以及制造光学薄膜的方法

Optical film, polarizing plate, liquid crystal display, and method of manufacturing optical film
Abstract:
Provided is an optical film which is resistant to repelling, bright dots, irregularity, and the use of such an optical film in a liquid crystal display leads to high front contrast, reduced grayscale inversion, and a reduced difference between a front image and an oblique image in grayscale reproducibility and color. The optical film including a first optically anisotropic layer; and a second optically anisotropic layer on the first optically anisotropic layer, wherein the first optically anisotropic layer is a layer of liquid crystal compounds aligned and fixed by polymerization, and the surface tilt angle of molecules of the liquid crystal compound is in a range of 5° to 80° at a site in contact with the second optically anisotropic layer.
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