NEW ORGANIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME
申请人:KIM Kong Kyeom
公开号:US20090121622A1
公开(公告)日:2009-05-14
Disclosed is a compound represented by formula 1:
wherein each of A, X, Y, Y′ and Y″ has the same meaning as described herein. When used in an organic light emitting device, the compound represented by formula 1 has at least one function selected from the group consisting of hole injection, hole transport, light emitting, electron transport, electron injection, etc., depending on the type of each unit forming the trimer or substituents in each unit. An organic light emitting device is also disclosed. The organic light emitting device includes a first electrode, an organic film having one or more layers and a second electrode, laminated successively, wherein at least one layer of the organic film includes at least one compound represented by formula 1.
ORGANIC ELECTROLUMINESCENT ELEMENT
申请人:Konica MinoIta, Inc.
公开号:US20170125715A1
公开(公告)日:2017-05-04
Provided is an organic EL element having less color variation. The organic EL element (
1
) of the invention includes, between a pair of an anode (
4
) and a cathode (
14
), a first light emitting layer (
8
) composed of at least one layer and a second light emitting layer (
10
) composed of at least one layer, the layers being laminated from the anode (
4
) side, in which the volume concentration of the luminescent dopant included in the second light emitting layer (
10
) is higher than the volume concentration of the luminescent dopant included in the first light emitting layer (
8
).