LED LIGHT SOURCE DEVICE, BACKLIGHT DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

Provided is an LED light source device having improved luminance characteristics. The LED light source device (1) is provided with a light emitting body (12) mounted on a mounting surface (11a) of a base member (11), and a transparent resin member (13), which is formed on the mounting surface (11a) and provided with a light emitting surface (13a) and a side end surface (13b). The side end surface (13b) is tilted so that the length of the light emitting surface (13a) in the lateral direction is longer than the length of the mounting surface (11a) in the lateral direction, and an interface between the side end surface (13b) and atmosphere is permitted to be a light reflecting surface.