SURFACE LIGHT-EMITTING DEVICE, PLANAR LIGHTING DEVICE AND ADVERTISING DISPLAY USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a surface light-emitting device enabled to obtain a wide luminescence area.

SOLUTION: A heat radiation member 13 is so arranged that a feeding unit housing 25 to be located at a back face side of a light guide plate 15. The heat radiation member 13 is furthermore so arranged that an LED substrate 11 is supported in a way in which a plurality of light-emitting diodes LEDs on the LED substrate 11 are to be positioned facing an outer end surface 16 of the light guide plate 15.

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