NITROGEN-CONTAINING CONDENSED HETEROCYCLIC COMPOUNDS FOR OLEDS
申请人:Stoessel Philipp
公开号:US20120232241A1
公开(公告)日:2012-09-13
The present invention relates to compounds of the formula (1), formula (2), formula (3) and formula (4) which are suitable for use in electronic devices, in particular organic electroluminescent devices.