Patent ID: 7446938

Claim:
A light pipe comprising: a laminate having a light-transmitting resin plate, and a polarized-light scattering plate laminated on at least one surface of said light-transmitting resin plate, said polarized-light scattering plate being disposed on an outside surface of said light-transmitting resin plate, such that no open gap exists between said light-transmitting resin plate and said polarized-light scattering plate, said polarized-light scattering plate having fine birefringent domains dispersed therein to exhibit anisotropy in scattering depending on a polarization direction; a specular reflection layer provided on a first surface of said laminate; and a polarization-retaining lens sheet provided on a second surface of said laminate, wherein said light-transmitting resin plate and said polarized-light scattering plate are bonded to each other.