申请人:Sumitomo Chemical Company, Limited
公开号:US20170235032A1
公开(公告)日:2017-08-17
Provided is an optical film which has high selective absorbability to short-wavelength visible light having wavelengths around 420 nm and hence a high blue-light cutting function and can impart better display characteristics when used for a display device. The optical film satisfies the following two formulae: (1) A(420)≧1 and (2) A(450)/A(420)≦0.3, wherein A(420) represents an absorbance of the optical film at a wavelength of 420 nm and A(450) represents an absorbance of the optical film at a wavelength of 450 nm.