Display device

Abstract

A display device is provided, which includes a display unit and a backlight module. The backlight module is disposed corresponding to the display unit. The backlight module includes a circuit board, a plurality of light sources, a diffuser plate and an optical film. The light sources are disposed on the circuit board, the diffuser plate is disposed between the light sources and the display unit, and the optical film is disposed between the diffuser plate and the display unit. The optical film includes a micro-structure, and the micro-structure faces the light sources.

What is claimed is: 
     
         1 . A display device, comprising:
 a display unit; and   a backlight module, disposed corresponding to the display unit, wherein the backlight module comprises:
 a circuit board; 
 a plurality of light sources, disposed on the circuit board; 
 a diffuser plate, disposed between the light sources and the display unit; and 
 an optical film, disposed between the diffuser plate and the display unit; 
   wherein the optical film comprises a micro-structure, and the micro-structure faces the light sources.   
     
     
         2 . The display device as claimed in  claim 1 , wherein the micro-structure comprises a plurality of arc-shaped structures. 
     
     
         3 . The display device as claimed in  claim 1 , wherein the micro-structure comprises a plurality of prism structures. 
     
     
         4 . The display device as claimed in  claim 3 , wherein the optical film has a rectangular structure, and a longitudinal axis of the prism structures is perpendicular to a long side direction of the rectangular structure. 
     
     
         5 . The display device as claimed in  claim 1 , wherein the display device further comprises a first brightness enhancement film, disposed between the diffuser plate and the optical film. 
     
     
         6 . The display device as claimed in  claim 5 , wherein the display device further comprises a second brightness enhancement film, disposed between the first brightness enhancement film and the optical film.