Patent ID: 11927795
Assignee: NICHIA CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC F  H

Claim 0:
1. A planar light source, comprising:
a light guide member including a plurality of light-emitting units separated by a groove, the plurality of light-emitting units including a plurality of outer portions and at least one inner portion located in a region surrounded by the plurality of outer portions in a plan view,
wherein in the plan view, at least one of the plurality of outer portions is adjacent to a smaller number of light-emitting units than a number of light-emitting units to which one of the at least one inner portion is adjacent, and
wherein in a state in which a same power is supplied and one of the plurality of outer portion and one of the at least one inner portion are allowed to individually emit light, brightness of the one of the plurality of outer portions is higher than brightness of the one of the at least one inner portion;
one or more light sources disposed in one or more of the plurality of light-emitting units;

an outer light-reflective member that is disposed on the one of the plurality of outer portions and at a position overlapping the one or more light sources in the plan view and that partially reflects light from the one or more light sources; and
an inner light-reflective member that is disposed on the one of the at least one inner portion and at a position overlapping the one or more light sources in the plan view and that partially reflects the light from the one or more light sources,
wherein a covering ratio of the outer light-reflective member covering the one of the plurality of outer portions is smaller than a covering ratio of the inner light-reflective member covering the one of the at least one inner portion.