Patent ID: 9230462
Filing Date: 2016-01-05
CPC Classification: G02B,G02F,G03B,G09F,H04N

Claim Text:
1. An image display device comprising: at least a first image display element and a second image display element, wherein each of a right eye image and a left eye image, generated by spatially separating a parallax image for a viewpoint, is displayed on a respective display surface of a corresponding one of the first image display element and the second image display element, wherein each display surface has a laminated structure comprising: a first quarter wavelength plate, a hollow layer, a second quarter wavelength plate, and a polarizing plate, wherein the first quarter wavelength plate converts light having a linear polarization into light having a circular polarization; the second quarter wavelength plate converts light having a circular polarization into light having a linear polarization; and the polarizing plate of the display surface of the first display element has a polarization direction that is orthogonal to a polarization direction of the polarizing plate of the display surface of the second display element, wherein light that is received from an outside and directed from the display surface of the first display element to the display surface of the second display element is absorbed by the laminated structures of the first display element and the second display element, and wherein the display surface of the first display element and the display surface of the second display element are configured to cause the right eye image to be observable by a naked right eye of an observer via a direct line of sight and to cause the left eye image to be observable by a naked left eye of the observer via a direct line of sight such that a synthesis of the right eye image and the left eye image is observable by the naked right and left eyes of the observer as a single image.