Patent ID: 9709719
Date: 2017-07-18
CPC Classifications: G02B

Claim:
1. A polarizer, comprising: a polyvinyl alcohol-based resin layer; and iodine adsorbed and oriented in the polyvinyl alcohol-based resin layer, the polarizer having a thickness less than or equal to 10 μm and a ratio of a retardation of iodine to a retardation of polyvinyl alcohol greater than or equal to 0.38 at a wavelength of 1000 nm, the retardation of polyvinyl alcohol and the retardation of iodine being values determined from fitting parameters that are obtained by fitting retardation values at a wavelength greater than or equal to 850 nm to the Sellmeier formula by least squares method, and the polarizer having a visibility correction single transmittance greater than or equal to 40.0% and a visibility correction degree of polarization greater than or equal to 99.9942%.