Patent ID: 7755724
Filing Date: 2010-07-13
Classification: G02F

Abstract:
1. A display apparatus suitable for a user to view through a polarization component having a first transmittance axis, comprising: a display module; a polarizer disposed on the display module, wherein the polarizer has a second transmittance axis such that a light from the display module passes through the polarizer and is converted into a polarized light; and a biaxial half-wave plate disposed on the display module and between the polarizer and the polarization component, wherein the biaxial half-wave plate has a slow axis arranged between the first and second transmittance axes, and the polarized light has a polarization passing through the biaxial half-wave plate and tending toward the first transmittance axis, and the biaxial half-wave plate provides a plate retardation Rth and a planar retardation Ro in a thickness direction of the biaxial half-wave plate, wherein the planar retardation Ro satisfies 250 nm≦Ro≦300 nm.