Patent ID: 8687052
Filing Date: 2014-04-01
Classification: G02B

Abstract:
1. A stereoscopic image display device, comprising: a left-eye image display for outputting a left-eye image having a first initial polarization at a predetermined angle; a right-eye image display which is installed so that a front surface thereof is positioned at a predetermined angle with respect to a front surface of the left-eye image display and which outputs a right-eye image having a second initial polarization at a predetermined angle; a half mirror which is provided between the displays and transmits any one image among the images and reflects the other image, so that the images are output on a same side; a first polarization corrector which is provided on the front surface of the left-eye image display and rotates the angle of the first initial polarization by a predetermined angle to produce a first corrected polarization; and a second polarization corrector which is provided on the front surface of the right-eye image display and rotates the angle of the second initial polarization by a predetermined angle to produce a second corrected polarization, wherein the polarization correctors respectively rotate the initial polarizations so that polarizations of the images output by the half mirror form 90° to each other, the polarization correctors are a first retardation film and a second retardation film, respectively, and the retardation films comprises a first λ/2 film and a second λ/2 film, respectively, and the first λ/2 film and the second λ/2 film are attached with optical axes thereof having been rotated by +22.5° or −22.5°.