Patent ID: 7164529
Filing Date: 2007-01-16
Classification: G02B,H04N

Abstract:
1. A polarizing eyeglass device adaptable for use with a first type and a third type of stereoscopic image display apparatus, the first type and the third type of stereoscopic image display apparatus comprising an image display screen having first areas and second areas in which pieces of image information corresponding to a parallax are displayed individually, a polarizing plate disposed in front of the image display screen, phase difference plates adhered to a front face of the polarizing plate at positions corresponding to the first areas of the image display screen for changing the polarization direction by 90°, and wherein the first type and the third type of display apparatus have a configuration wherein the first areas of the image display screen are intended for displaying pieces of image information intended for viewing with a left eye and the second areas of the image display screen are intended for displaying pieces of image information intended for viewing with a right eye, and wherein a polarization angle of the polarizing plate of the first type of display apparatus is orthogonal to a polarization angle of the polarizing plate of the third type of display apparatus, the polarizing eyeglass device adaptable for use to view an image displayed on the image display screen, the polarizing eyeglass device comprising: polarized light separation means for separating polarized light, the polarized light separation means including a first viewing region to be used for viewing with one of the left eye and the right eye and a second viewing region to be used for viewing with the other one of the left eye and the right eye; first polarization direction changing means adhered to a first face of the polarized light separation means in the first viewing region for changing the polarization direction by 90°; second polarization direction changing means adhered to a second face opposite to the first face of the polarized light separation means in the second viewing region for changing the polarization direction by 90°; wherein the polarizing eyeglass device is adaptable for use in a first arrangement with the first type of display apparatus, wherein the polarized light separation means has a polarization angle orthogonal to the polarization angle of the polarizing plate of the first type of display apparatus, the first viewing region used for viewing with the left eye, the second viewing region used for viewing with the right eye, and the polarized light separation means disposed between the first type of display apparatus and the first polarization direction changing means; wherein the polarizing eyeglass device is further adaptable for use in a second arrangement with the third type of display apparatus, wherein the polarization angle of the polarized light separation means is orthogonal to the polarization angle of the polarizing plate of the third type of display apparatus, the first viewing region used for viewing with the right eye, the second viewing region used for viewing with the left eye, and the polarized light separation means disposed between the third type of display apparatus and the second polarization direction changing means; and whereby reversing the polarizing eyeglass device between the first and second arrangement and switching between the first and third type of display apparatus, respectively, preserves stereoscopic image viewing.