Invention Grant
US08729542B2 Organic electroluminescence element 有权
有机电致发光元件

Organic electroluminescence element
Abstract:
Providing an organic electroluminescence element that can reduce the unevenness of the brightness and can improve the external quantum efficiency. The organic electroluminescence element includes a substrate 10, a first electrode 20, a second electrode 40, a functional layer 30 interleaved between the first electrode 20 the second electrode 40 and including a light emission layer 32, and a conductive layer 50. The resistivities of the first electrode 20 and the second electrode 40 are less than the resistivity of transparent conductive oxide. The second electrode 40 has an opening for light extraction. The functional layer 30 includes, as the outermost layer on the second electrode 40 side, a carrier injection layer 34. The conductive layer 50 is optically transparent and is in contact with the second electrode 40 and the functional layer 30. The carrier injection layer 34 has a recess in the projection domain of the opening.
Public/Granted literature
Information query
Patent Agency Ranking
0/0