Method of manufacturing organic light emitting device and organic light emitting device

Abstract

A first light emitting unit includes a hole injection layer, a first hole transport layer, and a first light emitting layer. A second light emitting unit includes a hole injection layer, a second hole transport layer, a third hole transport layer, a third hole transport layer, and a second light emitting layer. The second hole transport layer is formed on the hole injection layer and includes a first hole transporting material. The third hole transport layer is formed on the second hole transport layer and includes a second hole transporting material. A fourth hole transport layer is formed on the third hole transport layer and includes the same material as the second hole transport layer, that is, the second hole transporting material. The third hole transport layer is formed by using a coating method, and the fourth hole transport layer is formed by a vapor deposition method.

Dependencies are inferred from the claim text.