Patent ID: 8947780
Filing Date: 2015-02-03
Classification: G02B,H04N

Abstract:
1. A polarization module comprising: a polarizer; a plurality of first quarter-wave plates disposed on a first side of the polarizer such that their optical axes are tilted at 45 degrees with respect to a polarization axis of the polarizer; a plurality of second quarter-wave plates disposed on the first side of the polarizer such that their optical axes are tilted at 45 degrees with respect to the polarization axis of the polarizer in a direction opposite to the tilting direction of the optical axes of the plurality of first quarter-wave plates; and a transparent resin plate having optical isotropy disposed on the plurality of first quarter-wave plates and the plurality of second quarter-wave plates, wherein a distance between a light source of a display panel mounted on a second side of the polarizer and a surface of the transparent resin plate opposite to a surface facing the polarizer is set based on pitch of pixels of the display panel.