[EN] NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME [FR] NOUVEAUX COMPOSÉS ORGANIQUES ÉLECTROLUMINESCENTS ET DISPOSITIF ORGANIQUE ÉLECTROLUMINESCENT LES COMPRENANT
MULTI-COMPONENT HOST MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
申请人:Rohm and Haas Electronic Materials Korea Ltd.
公开号:US20170077423A1
公开(公告)日:2017-03-16
The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a dopant; the host consists of multi-component host compounds; at least a first host compound of the multi-component host compounds is a specific bicarbazole derivative containing an aryl group, and a second host compound is a specific carbazole derivative including a nitrogen-containing heteroaryl group. According to the present invention, an organic electroluminescent device using the multi-component host compounds has a high efficiency and long lifespan compared to the conventional organic electroluminescent device using one component of a host.
ORGANIC ELECTROLUMINESCENT DEVICE
申请人:Rohm and Haas Electronic Materials Korea Ltd.
公开号:US20170207396A1
公开(公告)日:2017-07-20
The present invention relates to an organic electroluminescent device. The organic electroluminescent device of the present invention shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.