The invention concerns polymers, electroluminescence devices, compositions and their use.
EMITTER HAVING A CONDENSED RING SYSTEM
申请人:MERCK PATENT GMBH
公开号:US20160197275A1
公开(公告)日:2016-07-07
The present invention relates to organic electroluminescent devices which comprise aromatic ring systems with two or three condensed rings as emitter materials, and to their possible uses.