Patent ID: 11402667

Abstract:
The optical sheet of the present invention is an optical sheet that includes a polarized layer having a polarization function and a light absorbing layer which is formed of a material including a resin and at least one type of light absorbing agent and absorbs light of a specific wavelength range in a visible light range, and is formed of a laminate in which the polarized layer and the light absorbing layer are laminated. The optical sheet has a first peak having an absorptance peak wavelength P1 in a wavelength range of 460 nm or more and 510 nm or less and a second peak having an absorptance peak wavelength P2 in a wavelength range of 430 nm or more and 680 nm or less in a light absorption spectrum. In addition, in a case where an average transmittance of visible light in the wavelength range of 475 nm or more and 650 nm or less is denoted by TAVE and a minimum transmittance of visible light in the wavelength range of 475 nm or more and 650 nm or less is denoted by TMIN, TMIN/TAVE is 0.20 or more.