18757107. Light-Emitting Device (Semiconductor Energy Laboratory Co., Ltd.)
Light-Emitting Device
Organization Name
Semiconductor Energy Laboratory Co., Ltd.
Inventor(s)
Toshiki Sasaki of Kawasaki (JP)
Shinya Fukuzaki of Atsugi (JP)
Light-Emitting Device
This abstract first appeared for US patent application 18757107 titled 'Light-Emitting Device
Original Abstract Submitted
A light-emitting device that can be used in a high-resolution display apparatus and has a low driving voltage and high current efficiency is provided. A tandem light-emitting device is fabricated through a photolithography process and includes a plurality of light-emitting units and an intermediate layer therebetween. The intermediate layer includes a layer that includes a metal oxide and an organic compound having a phenanthroline ring with an electron-donating group. The layer of the intermediate layer is in contact with a light-emitting unit on the anode side.