PLANAR LIGHT SOURCE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a planar light source device capable of appropriately controlling effect on light source brightness of the other planar light source units which the light source brightness of that certain planar light source unit exerts.

SOLUTION: The planar light source device 40 which illuminates a transmissive type liquid crystal display device 10 having a display region constituted of pixels arranged in a two-dimensional matrix state from the rear face is composed of P×Q pieces of the surface light source units 42. A light source 41 installed on the planar light source unit 42 is independently controlled, the planar light source unit 42 and the planar light source unit 42 are partitioned by a barrier rib 43. The barrier rib 43 is constituted of a light control member to control transmission/reflection of light emitted from the light source 41 constituting the planar light source unit 42.

COPYRIGHT: (C)2008,JPO&INPIT