To make the luminance of a vertically downward aiming liquid crystal direct backlight to be partially brighter at the center part while securing uniformity of the whole, so that the center part of the color television may be illuminated brighter than the other parts.

The pitch of arrangement of the light sources 9 is varied finely so that the pitch is shortened in the center part and widened at the end parts, and the light source reflecting surface 4 of the reflecting plate 3 is made a cross-sectionally curved U shape in which a first to a third reflecting surfaces 5-7 are arranged in bilateral symmetry, and the level of the first reflecting surface and the angle and peak position of the third reflecting surface 7 are made common for each light source reflecting surface 4, and the angle and width of the second reflecting surface 6 are varied finely so that they become smaller at the center part and larger at the end part, thereby the supply range b of the reflecting light is structured to move so as to be rotatingly displaced on the center part side. As a result, a thin type and desirable illumination can be obtained simply and positively.