Surface light source apparatus

摘要

A surface light source apparatus ( 100 ) includes a main body ( 105 ) having a space, and a plurality of space division members ( 130 ) being disposed in the space so that the space division members ( 130 ) are extended in a first direction and arranged in a second direction spaced apart from one another to divide the space into a plurality of light emitting spaces ( 112 ). The space division members ( 130 ) include a plurality of connecting holes ( 132 ). At least two of the connecting holes ( 132 ) have different heights from one another with respect to a bottom surface of the main body ( 105 ) to have the light emitting spaces connected to one another through the connecting holes ( 132 ). The surface light source apparatus also includes a visible light emitting unit to generate a visible light in the light emitting spaces. Therefore, the brightness-uniformity of the surface light source apparatus and an image display quality of a display device are improved.