Electronic device

Abstract

An electronic device includes: a display cell; a first light adjusting unit; and a second light adjusting unit, wherein the display cell, the first light adjusting unit and the second light adjusting unit are at least partially overlapped, and at least one of the first light adjusting unit and the second light adjusting unit is an ECB mode liquid crystal cell.

1 . An electronic device, comprising:
 a display cell;   a first light adjusting unit; and   a second light adjusting unit,   wherein the display cell, the first light adjusting unit and the second light adjusting unit are at least partially overlapped, the display cell directly contacts the second light adjusting unit, and at least one of the first light adjusting unit and the second light adjusting unit is an ECB mode liquid crystal cell.   
     
     
         2 . The electronic device of  claim 1 , comprising a first polarizer and a second polarizer, wherein the display cell and the second light adjusting unit are disposed between the first polarizer and the second polarizer. 
     
     
         3 . The electronic device of  claim 2 , wherein the second light adjusting unit is disposed on the display cell. 
     
     
         4 . The electronic device of  claim 2 , comprising a third polarizer, wherein the first light adjusting unit is disposed between the second polarizer and the third polarizer. 
     
     
         5 . The display device of  claim 1 , wherein the second light adjusting unit is an ECB mode liquid crystal cell. 
     
     
         6 . The electronic device of  claim 1 , wherein the first light adjusting unit is an ECB mode liquid crystal cell, a TN mode liquid crystal cell, a VA mode liquid crystal cell, or a VA-ECB hybrid mode liquid crystal cell. 
     
     
         7 . The display device of  claim 1 , wherein the first light adjusting unit comprises:
 a collimated backlight module; and   an active diffuser disposed on the collimated backlight module, wherein the display cell is disposed on the active diffuser.   
     
     
         8 . The display device of  claim 1 , wherein the first light adjusting unit comprises:
 a collimated backlight module; and   a transparent backlight module disposed on the collimated backlight module, wherein the display cell is disposed on the transparent backlight module.   
     
     
         9 . The display device of  claim 8 , wherein the transparent backlight module comprises a light guide plate, and plural cavities or air bubbles are formed or embedded in the light guide plate. 
     
     
         10 . The display device of  claim 1 , wherein the first light adjusting unit comprises:
 a non-collimated backlight module;   a louver film disposed on the non-collimated backlight module; and   an active diffuser disposed on the louver film, wherein the display cell is disposed on the active diffuser.   
     
     
         11 . The display device of  claim 1 , wherein the first light adjusting unit comprises:
 a non-collimated backlight module;   a louver film disposed on the non-collimated backlight module; and   a transparent backlight module disposed on the louver film, wherein the display cell is disposed on the transparent backlight module.   
     
     
         12 . The display device of  claim 1 , wherein the first light adjusting unit comprises:
 a non-collimated backlight module;   a transparent backlight module disposed on the non-collimated backlight module, wherein the display cell is disposed on the transparent backlight module.   
     
     
         13 . The electronic device of  claim 1 , wherein the first light adjusting unit comprises a first viewing angle changing area and a first dummy area, and the second light adjusting unit comprises a second viewing angle changing area and a second dummy area;
 wherein the first viewing angle changing area corresponds to the second viewing angle changing area, and the first dummy area corresponds to the second dummy area.   
     
     
         14 . An electronic device, comprising:
 a backlight module;   a first light adjusting unit; and   a second light adjusting unit disposed between the first light adjusting unit and the backlight module, wherein the second light adjusting unit comprises plural pixels,   wherein at least one of the plural pixels comprises a display region and a viewing angle changing region, and an operation mode of the display region is different from an operation mode of the viewing angle changing region.   
     
     
         15 . The electronic device of  claim 14 , wherein the display region is operated by an IPS mode. 
     
     
         16 . The electronic device of  claim 14 , wherein the viewing angle changing region is operated by an ECB mode. 
     
     
         17 . The electronic device of  claim 14 , wherein an alignment of liquid crystal molecules in the display region are controlled by a first transistor, and an alignment of liquid crystal molecules in the viewing angle changing region are controlled by a second transistor. 
     
     
         18 . The electronic device of  claim 14 , further comprising a first polarizer and a second polarizer, wherein the second light adjusting unit is disposed between the first polarizer and the second polarizer. 
     
     
         19 . The electronic device of  claim 18 , further comprising a third polarizer, wherein the first light adjusting unit is disposed between the second polarizer and the third polarizer. 
     
     
         20 . The display device of  claim 14 , wherein the first light adjusting unit is an ECB mode liquid crystal cell, a TN mode liquid crystal cell, a VA mode liquid crystal cell, or a VA-ECB hybrid mode liquid crystal cell.