Organic light-emitting device capable of high-quality display

摘要

The object of the present invention is to provide an organic light emitting device which can be operated at a low voltage, and when such elements are used in a display panel, a light-emitting surface which can emit light uniformly over an entire display panel can be obtained when the conditions are maintained the same. The organic light-emitting device of the present invention includes a substrate (1) having a light transmitting property in a visible range, a first electrode (2) having a light transmitting property in a visible range, and formed on the substrate (1), a layer (3, 4) formed on the first electrode (2), and configured to emit light by recombination of excitons each made of a pair of a positive hole and electron injected thereto, and a second electrode (5) containing erbium and formed on the layer.