Patent ID: 7746424
Filing Date: 2010-06-29
Classification: G02F,H01L

Abstract:
1. A high-brightness polarizing plate, comprising: a polarizing plate; wherein the polarizing plate comprises a polarizer and a protective film prepared on one or both sides of the polarizer, and the polarizer and the protective film are adhered with an adhesive; a brightness enhancement film; and an adhesive layer through which the polarizing plate and the brightness enhancement film are laminated with the protective film interposed between them, wherein the protective film has an in-plane retardation Re of 0 to 10 nm and a thickness-direction retardation Rth of −30 to 10 nm, wherein nx is a refractive index in an X-axis direction in which a maximum in-plane refractive index is obtained, ny is a refractive index in a Y-axis direction perpendicular to the X-axis, nz is a refractive index in a Z-axis direction which is the film thickness direction, and d is a thickness (nm) of the protective film.