| 摘要 |
PROBLEM TO BE SOLVED: To provide a planar lighting apparatus with its light source being enabled to be practically installed in a high density and a precise accuracy.SOLUTION: A planar lighting apparatus of this invention is a planar lighting apparatus S comprising: a light guide plate 2; a plurality of light sources 1A1 to 1C7 arranged in rows in a longitudinal direction of a side end surface 2s of the light guide plate 2; and a mounting board 3 having each of the light sources 1A1 to 1C7 actually mounted thereon. An electrical conduction pattern of the mounting board 3 is set in such a way that a pair of electrode terminals t1, t2 of the light sources 1A1 to 1C7 have a pair of plurality of lands r1, r2 to which each of the electrode terminals is connected, and a plurality of light sources 1A1 to 1C7 are actually mounted in such a way that a spacing between outer sides at the electrode terminals t1, t2 and the outer sides of the lands r1, r2 becomes smaller than a spacing between the inner side at the electrode terminals t1, t2 in their longitudinal direction and the inner side at the lands r1, r2.SELECTED DRAWING: Figure 1 |
