公开(公告)号：US11588119B2

公开(公告)日：2023-02-21

申请号：US16500903

申请日：2018-04-20

申请人： Sumitomo Chemical Company, Limited

发明人： Toshiaki Sasada ,  Rei Okamura

IPC分类号： H01L51/00 ,  C09K11/06 ,  H01L51/50

摘要： A light emitting device having excellent luminance life contains an anode, a cathode, a first organic layer disposed between the anode and the cathode and a second organic layer disposed between the anode and the cathode. The first organic layer contains a compound represented by the formula (C-1), and the second organic layer contains a compound represented by the formula (C-1) and a cross-linked body of a crosslinkable material. Ring R1C and Ring R2C represent an aromatic hydrocarbon ring or an aromatic hetero ring and RC represents an oxygen atom, a sulfur atom or a group represented by the formula (C′-1). Ring R3C and Ring R4C represent an aromatic hydrocarbon ring or an aromatic hetero ring and RC′ represents a carbon atom, a silicon atom, a germanium atom, a tin atom or a lead atom.