Three-dimensional display apparatus

Abstract

A display device includes; a display panel, a lens substrate facing the display panel, an air layer disposed between the display panel and the lens substrate, and a light refraction portion disposed on a surface of the lens substrate facing the display panel, wherein an average refractive index of the light refraction portion taken along a plane substantially parallel to the display panel increases in a direction substantially parallel to a path of light from the display panel to the lens substrate.

What is claimed is: 
     
         1 . A display device comprising:
 a display panel; and   a plurality of lenses disposed on the display panel, each lens comprising a convex surface and a flat surface,   wherein the convex surface of the lens is disposed toward a surface of the display panel from which light is emitted before being received by the lens.   
     
     
         2 . The display device of  claim 1 , further comprising:
 a lens substrate disposed on the plurality of lenses, wherein the flat surface of the lens is disposed between the lens substrate and the convex surface of the lens.   
     
     
         3 . The display device of  claim 2 , wherein the lens substrate is directly contacted with the flat surface of the lens. 
     
     
         4 . The display device of  claim 2 , further comprising:
 a spacer disposed between the display panel and an edge of the lens substrate.   
     
     
         5 . The display device of  claim 4 , wherein the spacer combines the lens substrate and display panel to each other. 
     
     
         6 . The display device of  claim 4 , wherein the spacer is not overlapped with the plurality of lenses in a plan view. 
     
     
         7 . The display device of  claim 4 , further comprising:
 a chassis enclosing the display panel,   wherein the spacer contacts an outer surface of the chassis and the edge of the lens substrate.   
     
     
         8 . The display device of  claim 4 , further comprising:
 a chassis enclosing the display panel and the lens substrate.   
     
     
         9 . The display device of  claim 1 , wherein the surface of the display panel and the lens are disposed apart from each other. 
     
     
         10 . The display device of  claim 9 , further comprising:
 an air layer in a portion that the surface of the display panel and the lens are disposed apart from each other.   
     
     
         11 . The display device of  claim 9 , further comprising:
 a light-transmitting portion in a portion that the surface of the display panel and the lens are disposed apart from each other.   
     
     
         12 . The display device of  claim 11 , wherein the light-transmitting portion comprises a refractive isotropic material. 
     
     
         13 . The display device of  claim 1 , wherein the display panel is a liquid crystal display. 
     
     
         14 . The display device of  claim 1 , further comprising:
 an upper polarizer disposed above the display panel.   
     
     
         15 . The display device of  claim 14 , wherein the upper surface of the upper polarizer is treated by a low reflection surface treatment. 
     
     
         16 . The display device of  claim 14 , further comprising:
 a lower polarizer disposed below the display panel.   
     
     
         17 . The display device of  claim 1 , further comprising:
 a first layer disposed on the plurality of lenses.   
     
     
         18 . The display device of  claim 17 , further comprising:
 a lens substrate disposed between the first layer and the plurality of lenses, wherein the flat surface of the lens is disposed between the lens substrate and the convex surface of the lens.   
     
     
         19 . The display device of  claim 18 , wherein the first layer is a low reflection surface layer. 
     
     
         20 . A display device comprising:
 a display panel;   a lens substrate overlapping the display panel;   a lens between the display panel and the lens substrate, the lens comprising a convex surface and a flat surface;   a first polarizer disposed on the display panel;   an air layer disposed between the first polarizer and the lens, and   a spacer disposed between the display panel and an edge of the lens substrate,   wherein the convex surface of the lens is disposed toward a surface of the display panel from which light is emitted therefrom before being received by the lens.