Lighting device

摘要

A lighting device includes a substrate and a planar light source portion including a plurality of LED chips arrayed on the substrate. The planar light source portion faces an illumination space (space to be illuminated) by a predetermined opening area. The plurality of LED chips are arrayed on the substrate such that the mounting density with respect to the opening area is not less than 3/cm2, and accordingly, a planar light source is formed.

主权项

1. A lighting device, comprising:
a substrate; a plurality of LED chips that are supported on the substrate and that are disposed in an array extending in a first direction, the LED chips including a first LED chip, a second LED chip adjacent the first LED chip, and a third LED chip disposed on a side of the second chip opposite the first LED chip, each of the LED chips having an anode terminal and a cathode terminal; and a wiring pattern having an oblique portion that connects the anode terminal of the first LED chip and the cathode terminal of the second LED chip, the oblique portion extending in a second direction that is transverse with respect to the first direction, wherein the third LED chip is electrically connected to the second LED chip without the first chip intervening therebetween, and the third LED chip is overlapped with the first LED chip when viewed in the first direction.