Patent ID: 7573544

Claim:
A process for preparation of a polarizing plate comprising a light-scattering polarizing element having a polarizing layer which selectively transmits polarized light and selectively reflects or scatters other polarized light, and a light-absorbing polarizing element having a polarizing layer which selectively transmits polarized light and selectively absorbs polarized light, said elements being so arranged that the polarizing transmission axis of the light-scattering polarizing element is essentially parallel to the polarizing transmission axis of the light-absorbing polarizing element, and said polarizing layer in the light-scattering polarizing element comprising an optically isotropic continuous phase and an optically anisotropic discontinuous phase, and wherein the process comprises irradiating a discontinuous phase containing a compound having a light-orienting group with light to form the optically anisotropic discontinuous phase.