Surface light source device and liquid crystal display apparatus

A surface light source device comprising:

• a surface light-emitting light-guiding unit including a light incident surface provided in a side surface and a front surface, light that enters through the light incident surface being guided in the surface light-emitting light-guiding unit to exit through the front surface;
• an LED light source for emitting an LED light ray, the LED light source being disposed at an outside position on a side of a direction of the light incident surface of the surface light-emitting light-guiding unit;
• a plurality of laser light sources for emitting laser light rays, the laser light sources being disposed at an outside position on a side of a direction of a rear surface of the surface light-emitting light-guiding unit;
• and
• a laser-light-ray guiding unit arranged on a side of a rear surface of the surface light-emitting light-guiding unit, the laser-light-ray guiding unit including a light incident end surface and a light bending part, the laser-light-ray guiding unit guiding the laser light rays emitted from the laser light sources so that the laser light rays enter through the light incident end surface, travel in a direction opposite to a direction in which the LED light source emits the LED light ray, and thereafter are reflected by the light bending part to enter through the light incident surface of the surface light-emitting light-guiding unit.