18986502. ORGANIC LIGHT-EMITTING DEVICE (Canon Kabushiki Kaisha)
ORGANIC LIGHT-EMITTING DEVICE
Organization Name
Inventor(s)
SATORU Shiobara of Kanagawa JP
HIROKAZU Miyashita of Miyagi JP
HITOSHI Nagashima of Kanagawa JP
ORGANIC LIGHT-EMITTING DEVICE
This abstract first appeared for US patent application 18986502 titled 'ORGANIC LIGHT-EMITTING DEVICE
Original Abstract Submitted
An organic light-emitting device which includes a light-emitting layer stack including at least two stacked light-emitting layers and in which an electron injection barrier is formed by adjusting HOMOs and LUMOs of organic compounds constituting the two light-emitting layers to expand an exciton combination region. A first light-emitting layer contains a first organic compound, a second organic compound, and a first light-emitting material, a second light-emitting layer contains the first organic compound, a third organic compound, and a second light-emitting material, and the organic light-emitting device satisfies formulas (1) and (2) below.