Organic electroluminescent device, lighting apparatus, and method for manufacturing the organic electroluminescent device

A lighting apparatus comprising:

• an organic electroluminescent device including
• a first electrode having a major surface and including a first portion, a second portion arranged with the first portion in a first direction parallel to the major surface and a third portion arranged with the first portion in the first direction, the first electrode being light transmissive,
• an interconnection layer extending in a plane parallel to the major surface, the interconnection layer being light-reflective and electrically connected to the first electrode, and having a conductivity higher than a conductivity of the first electrode, the third portion overlaying the interconnection layer when projected to the plane, and the first portion and the second portion not overlaying the interconnection layer when projected to the plane,
• a second electrode being light-reflective, the second electrode overlaying the second portion and not overlaying the first portion and the third portion when projected to the plane,
• an organic light emitting layer provided between the second portion and the second electrode, and
• a light scattering layer including a fourth portion and a fifth portion arranged with the fourth portion in a direction parallel to the major surface, the second portion being disposed between the fourth portion and the second electrode, the fifth portion overlaying the interconnection layer when projected to the plane, and the light scattering layer not overlaying the first portion when projected to the plane;
• and
• a power supply unit electrically connected to the interconnection layer and the second electrode, and configured to supply a current passing through the organic light emitting layer via the interconnection layer, the first electrode, and the second electrode.