Organic light emitting device and color display apparatus using the same

摘要

A top-emitting or bottom-emitting OLED (10) has a wide color gamut and reduces a variation in color with a viewing angle. The OLED includes a reflective electrode (12) and a transmissive or semi-transmissive electrode (18) disposed opposite each other; at least two organic emission layers (EMLs) (14,16) interposed between the reflective electrode (12) and the transmissive or semi-transmissive electrode (18); and an optical path control layer (19) disposed on an outer surface of the transmissive or semi-transmissive electrode (18). A resonator is formed between the reflective electrode and the optical path control layer so a resonance mode of light extracted from the optical path control layer is a multi-resonance mode having at least two modes in a visible light region. A distance between the organic EMLs satisfies the condition of constructive interference between light beams emitted by the respective organic EMLs. A color display apparatus using the OLED are taught.