Patent ID: 7570321
Filing Date: 2009-08-04
Classification: G02B,G02F,H05K

Abstract:
1. A liquid crystal display device having a liquid crystal display panel and a backlight system provided on a rear side of said liquid crystal display panel, said backlight system comprising: a light guide plate having a surface thereof serving as a illuminating surface region opposite to the liquid crystal display panel; light sources each mounted on a flexible printed-circuit board and provided on a side face of said light guide plate; and an optical sheet member interposed between said liquid crystal display panel and said light guide plate; wherein the side surfaces of said light guide plate with the light sources provided thereon have a ridge-like inclined surface formed thereon when viewed from the illuminating surface and each of said ridge-like inclined surfaces serves as a light-receiving surface with said light source arranged thereon; and wherein said light guide plate has a positioning pin formed to project toward a face parallel to the illuminating surface region and said flexible printed circuit has a flexible printed circuit positioning hole engaging with said positioning pin formed on said light guide plate.