The phase difference film and its use

文件类型：PDF文档
文件大小：208K
The retardation film according to the present invention is characterized by : including a polymer material that includes at least one cellulose derivative which includes specific monomer units : having an in-plane retardation Re(550) of 105-160 nm, reverse wavelength dispersion property, Re(450)/Re(550), of 0.80-0.89, and a thickness of 20-50 μm; and containing inorganic particles. In particular, the present invention exhibits the effect of reducing the photoelastic coefficient.