Patent ID: 9136309
Filing Date: 2015-09-15
Classification: H01L

Abstract:
1. An organic electroluminescent apparatus comprising: an organic EL element emitting light of red color, an organic EL element emitting light of green color and an organic EL element emitting light of blue color, wherein each of the organic EL elements includes a first electrode on a light output side, a second electrode opposite the first electrode, and an organic compound layer including a light-emitting layer between the first electrode and the second electrode, wherein each of the organic EL elements has a resonator structure configured to resonate light emitted from the light-emitting layer between a first reflective surface closer to the first electrode than the organic compound layer and a second reflective surface closer to the second electrode than the organic compound layer, and wherein an optical distance of the organic EL elements of each color between an emission position in the light-emitting layer and the second reflective surface is set within ±10% from an optical distance corresponding to an nth-order minimum of a curve of required current density, which is necessary when a predetermined white color is displayed by the organic EL element emitting light of red color, the organic EL element emitting light of green color and the organic EL element emitting light of blue color.