Patent ID: 8436531

Claim:
A lighting device comprising: a plurality of circuits connected in parallel with each other, each of the plurality of circuits comprising: a first light emitting element and a second light emitting element which are connected in series, each comprising: a first electrode over a substrate; a first light emitting layer over the first electrode; a second light emitting layer over the first light emitting layer; a first layer which is located between the first light emitting layer and the second light emitting layer and is capable of generating carriers; and a second electrode over the second light emitting layer, a partition layer covering a first edge portion of the first electrode of the first light emitting element and an edge portion of the first electrode of the second light emitting element, wherein the first electrode of the first light emitting element and the first electrode of the second light emitting element are separated from each other, wherein the partition layer includes a first opening over the first electrode of the first light emitting element and a second opening over the first electrode of the second light emitting element, wherein part of the first light emitting layer of the first light emitting element is over the partition layer, wherein the first light emitting layer of the first light emitting element of the plurality of circuits is continuous to the first light emitting layer of an adjacent one of the first light emitting element of the plurality of circuits, and wherein the first light emitting layer of the second light emitting element of the plurality of circuits is continuous to the first light emitting layer of an adjacent one of the second light emitting element of the plurality of circuits.