Patent ID: 9674511
Date: 2017-06-06
CPC Classifications: G02B,H04N

Claim:
1. A stereoscopic display system including: a stereoscopic image display device for displaying a stereoscopic image comprising: a transparent display panel provided to alternately display a right-eye image and a left-eye image in a time-division manner; a light-gathering means provided on a back side of the transparent display panel, the light-gathering means having a first focal point on the back side of the transparent display panel, the light-gathering means having a second focal point in such a way that a straight line connecting the first focal point and the second focal point is located between both eyes of a viewer; a light source unit provided to face the light-gathering means, the light source unit having a first light source and a second light source, which are located to interpose the first focal point therebetween in a planar view, the first light source and the second light source alternately and asymmetrically emitting light in a lime-division manner, where a part of the first light source and the second light source adjacent the first focal point is turned off based on which of the right-eye image and the left-eye image is displayed, each of the first light source and the second light source has, relative to a viewer side, an outer part located a distance from the first focal point and an inner part located adjacent the first focal point relative to the outer part, wherein said distance defines a width of the inner part, and the inner part of the first light source and the inner part of the second light source are interposed between the first focal point and the respective outer parts of the first light source and the second light source, the outer part and the inner part being independently controllable to emit light a light source control part that controls the light source unit to cause an entire surface of the first light source and only the outer part of the second light source to emit light when the right-eye image is displayed on the transparent display panel, the light source control part controlling the light source unit to cause an entire surface of the second light source and only the outer part of the first light source to emit light when the left-eye image is displayed on the transparent display panel; and the stereoscopic display system further comprising: viewing glasses that allow light to enter a right eye and block light from entering a left eye when the right-eye image is displayed on the transparent display panel, wherein the viewing glasses allow light to enter the left eye and block light from entering the right eye when the left-eye image is displayed on the transparent display panel, wherein: a mixed region, a first region, and a second region are formed on the viewer side; the right-eye image and the left-eye image of the transparent display panel both reach the mixed region; the right-eye image of the transparent display panel reaches the first region exclusively; and the left-eye image of the transparent display panel reaches the second region exclusively.