ORGANIC ELECTROLUMINESCENT ELEMENT, COMPOUNDS AND MATERIALS USED FOR THE ORGANIC ELECTROLUMINESCENT ELEMENT, AND LIGHT-EMITTING, DISPLAY AND ILLUMINATING DEVICES USING THE ELEMENTS
申请人:Watanabe Kousuke
公开号:US20130214259A1
公开(公告)日:2013-08-22
An organic electroluminescent element is provided that has high luminous efficiency, and a slow luminance deterioration rate in the initial stage of lighting. The organic electroluminescent element includes a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes, wherein at least one organic layer includes a compound represented by the general formula (1). (R
11
to R
15
represent hydrogen atoms, alkyl groups, or silyl groups, and any one of R
21
to R
24
represents a group represented by general formula (1A) or (1B). Ph
4
represents a p-phenylene group, and at least one of Ph
4a
and Ph
4b
represents a p-phenylene group.)