Patent ID: 8047697
Filing Date: 2011-11-01
Classification: G02B

Abstract:
1. A backlight comprising: a light source that includes a base body that extends in a longitudinal direction, and a plurality of LEDs arranged away from each other on a surface of the base body in the longitudinal direction; a light guide plate into an end surface of which light is input from the light source; a micro-prism array sheet that is a transparent sheet on one surface of which a plurality of small prisms are formed, is unitarily formed with the light guide plate with the prisms faced with a side of the light guide plate, receives light from the light guide plate and outputs the light to a liquid crystal panel; a first reflection sheet that is arranged on a surface side of the light guide plate opposite to the surface of the light guide plate on which the micro-prism array sheet is disposed; a diffusion film that is disposed on a surface, in the vicinity of the light source, of the surface of the light guide plate on which the micro-prism array sheet is disposed and diffuses light; and a second reflection sheet that is arranged to cover the diffusion film.