Patent ID: 7384179
Filing Date: 2008-06-10
Classification: G02B,G02F

Abstract:
1. A planar light source unit comprising: a light source; an upper case having an opening through which the light is emitted from the light source; a lower case fitted with the upper case and including a hole; a light guide plate disposed inside the upper case and the lower case; a resin frame including a first surface that holds the light guide plate, a second surface opposed to the first surface, a first restriction member penetrated through the hole of the lower case, the first restriction member including a first portion extending from and substantially perpendicular to the second surface, and a second portion contacted with a portion of the first portion, the second portion having a main surface extending substantially parallel to the second surface; and a first member, a part of which is inserted into a clearance defined by the second surface, the first portion and the main surface.