Display device

Abstract

There is provided a technology capable of reducing crosstalk at the time of 3D display in a display device using a liquid crystal lens that forms cylindrical lenses by controlling a voltage applied to a liquid crystal panel. The display device includes a liquid crystal display panel which includes a substrate including a plurality of strip-shaped transparent electrodes and a plurality of strip-shaped light shielding portions overlapping with the electrodes. The display device displays an image by switching a two-dimensional display and a three-dimensional display, and the cylindrical lenses making up a parallax barrier, are formed by controlling a refraction index of a liquid crystal layer.

1 . A display device displaying an image by switching a two-dimensional display and a three-dimensional display, the display device comprising:
 a display panel performing an image display; and   a liquid crystal display panel being disposed at a display surface side of the display panel; the liquid crystal display panel comprising:
 a first transparent substrate comprising a planar transparent electrode; 
 a second transparent substrate being opposite to the first substrate; the second transparent substrate comprising:
 a plurality of strip-shaped electrodes being formed of a transparent electrode material, extending in a first direction, and being arranged in parallel in a second direction intersecting with the first direction; and 
 a plurality of strip-shaped light shielding portions overlapping with the plurality of strip-shaped electrodes and extending in the first direction; and 
 
 a liquid crystal layer being interposed between the first substrate and the second substrate; 
   wherein cylindrical lenses extending in the first direction, being arranged in parallel in the second direction, and making up a parallax barrier, are formed by controlling a refraction index of the liquid crystal layer.   
     
     
         2 . The display device according to  claim 1 ,
 wherein a width of the strip-shaped electrodes in the second direction is the same as that of the light shielding portions.   
     
     
         3 . The display device according to  claim 1 ,
 wherein the width of the strip-shaped electrodes in the second direction is different from that of the light shielding portions.   
     
     
         4 . The display device according to  claim 3 ,
 wherein the longitudinal direction in an initial orientation of liquid crystal molecules making up the liquid crystal layer intersects with the first direction and intersects obliquely with the second substrate,   the width of the strip-shaped electrodes in the second direction is larger than that of the light shielding portions, and   the light shielding portions are formed at a peripheral edge of the strip-shaped electrodes at the side where an end of liquid crystal molecules in the longitudinal direction is close to the second substrate in the second direction.   
     
     
         5 . A display device displaying an image by switching a two-dimensional display and a three-dimensional display, the display device comprising:
 a display panel performing an image display; and   a liquid crystal display panel being disposed at a display surface side of the display panel; the liquid crystal display panel comprising:
 a first transparent substrate comprising a planar transparent electrode; 
 a second transparent substrate being opposite to the first substrate; the second transparent substrate comprising a plurality of strip-shaped electrodes being formed of a metallic material having a light shielding property, extending in a first direction, and being arranged in parallel in a second direction intersecting with the first direction; and 
 a liquid crystal layer being interposed between the first substrate and the second substrate; 
   wherein cylindrical lenses extending in the first direction, being arranged in parallel in the second direction, and making up a parallax barrier, are formed by controlling a refraction index of the liquid crystal layer.   
     
     
         6 . The display device according to  claim 5 ,
 wherein the strip-shaped electrodes comprise a dielectric film formed of a dielectric material.   
     
     
         7 . The display device according to  claim 5 ,
 wherein the strip-shaped electrodes comprise at least two layers or more fo metallic thin film.   
     
     
         8 . The display device according to  claim 1 ,
 wherein the display panel includes a liquid crystal display panel and a backlight device.   
     
     
         9 . The display device according to  claim 5 ,
 wherein the display panel includes a liquid crystal display panel and a backlight device.