Patent ID: 8436974
Filing Date: 2013-05-07
Classification: G02B,H05K

Abstract:
1. An illuminating device, comprising: a plurality of light-emitting diode elements that are arranged at a predetermined spacing from each other; a light guide plate that has at least a light incidence surface to which the light-emitting diode elements are disposed in an opposed manner and a light output surface that is perpendicular to the light incidence surface and faces a side of an illuminated body; and a flexible printed circuit board that includes at least a first portion disposed perpendicularly to the light incidence surface of the light guide plate, the light-emitting diode elements being mounted on the first portion, wherein the flexible printed circuit board further includes, in addition to the first portion, a second portion positioned below a region between the light-emitting diode elements and the light incidence surface of the light guide plate, and the second portion of the flexible printed circuit board is formed so as to be inclined in an obliquely downward direction toward the light incidence surface of the light guide plate and to reflect light from the light-emitting diode elements toward the light incidence surface of the light guide plate.