Display method and display device

Abstract

When an optical element is transparent, an observer is enabled to visually recognize a stereoscopic image having a stereoscopic effect. A display method for a stereoscopic image, using a display device provided with a transparent light guide plate, includes: emitting light to be recognized by the observer as a stereoscopic image ( 11 ) from an optical element; and displaying the stereoscopic image ( 11 ) on a stereoscopic image forming plane (P 1 ) not parallel to an outgoing surface ( 21 ) of the optical element. In the display method, the observer is able to visually recognize a rear surface side of the display device through the optical element.

1 .- 6 . (canceled) 
     
     
         7 . A display method for a stereoscopic image, using a display device provided with a transparent optical element, the display method comprising
 emitting light to be recognized by an observer as a stereoscopic image from the optical element,   wherein the observer is able to visually recognize a rear surface side of the display device through the optical element, and   wherein the stereoscopic image includes two line segments that are parallel to one plane and are not parallel to each other and one line segment that is not parallel to the plane.   
     
     
         8 . The display method according to  claim 7 , wherein the plane is parallel to the outgoing surface of the optical element. 
     
     
         9 . The display method according to claim  1 , wherein a reference image including two line segments orthogonal to each other is displayed separately from the stereoscopic image. 
     
     
         10 . The display method according to  claim 9 , wherein the two line segments included in the reference image are parallel to the outgoing surface of the optical element. 
     
     
         11 . The display method according to  claim 9 , wherein the two line segments included in the reference image intersect at one point. 
     
     
         12 . The display method according to  claim 9 , wherein the reference image includes one line segment orthogonal to the two line segments included in the reference image. 
     
     
         13 . The display method according to  claim 9 , wherein the reference image is formed of light emitted from the optical element. 
     
     
         14 . The display method according to  claim 9 ,
 wherein another optical element is provided so as to be superimposed on the optical element, and   wherein the reference image is formed of light emitted from the other optical element.   
     
     
         15 . The display method according to  claim 9 , wherein a transparent sheet on which an image as the reference image is drawn is provided on the optical element. 
     
     
         16 . The display method according to  claim 7 , wherein the optical element forms the stereoscopic image by guiding light incident from the light source, changing an optical path of the guided light, and emitting the light from the outgoing surface to form the stereoscopic image. 
     
     
         17 . A display device, wherein a stereoscopic image is displayed by the display method according to  claim 7 . 
     
     
         18 . The display method according to  claim 8 , wherein a reference image including two line segments orthogonal to each other is displayed separately from the stereoscopic image. 
     
     
         19 . The display method according to  claim 18 , wherein a reference image including two line segments orthogonal to each other is displayed separately from the stereoscopic image 
     
     
         20 . The display method according to  claim 10 , wherein the two line segments included in the reference image intersect at one point.