Patent ID: 11934003
Assignee: NICHIA CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G | IPC F

Claim 0:
1. A planar light source comprising:
a support member;
a light guide member disposed on the support member and having a light source positioning part; and
a light source disposed on the support member while being in the light source positioning part of the light guide member; wherein
the support member comprises:
an insulation base having a first face positioned closer to the light source and a second face positioned opposite the first face,
a first conductive layer disposed on the first face of the insulation base and electrically connected to the light source,
an adhesive layer disposed on and in contact with the first face of the insulation base and the first conductive layer,
a light reflecting sheet disposed on the adhesive layer,
a second conductive layer disposed on the second face of the insulation base and electrically connected to the first conductive layer, the second conductive layer being a metal layer that includes substantially no resin,
a hole positioned under the light source and passing through the light reflecting sheet, the adhesive layer, and the insulation base,
a first connection part disposed in the hole and on the second face of the insulation base, and connected to the second conductive layer, the first connection part comprising a resin and conductive particles, and
a protective layer comprising a resin, and directly covering the second conductive layer and the first connection part.