Organic electric element, display panel comprising the same and display device comprising the same
Provided are an organic electric element, a display panel and a display device including the organic electric element which include a charge generating layer including a first layer having a first compound and a second compound and a second layer having a third compound so that they may have excellent efficiency or lifespan.
1 . An organic electric element, comprising:
a first electrode;
a second electrode; and
an organic layer positioned between the first electrode and the second electrode,
wherein the organic layer comprises a first layer,
the first layer comprises a first compound and a second compound, and
wherein the first compound is one or more of A2 to A3, A5 to A7, A10, A14, A17 to A19, A21 to A22, A26 to A27, A29 to A46, A48,
wherein the second compound is one or more of the 5-4 to 5-6, 5-10 to 5-12, 5-17, 5-18 and 5-22 to 5-24:
2 . The organic electric element according to claim 1 , wherein the first electrode is an anode electrode, the second electrode is a cathode electrode, and the first layer is positioned between the first electrode and the light emitting layer.
3 . The organic electric element according to claim 1 , wherein the following general formula 1 is satisfied:
[general formula 1]
0.32
eV
≤
L
1
-
H
2
≤
0.8
eV
in the general formula 1, L 1 is the LUMO energy level of the first compound, and H 2 is the HOMO (Highest Occupied Molecular Orbital) energy level of the second compound.
4 . The organic electric element according to claim 1 , wherein the organic layer comprises a light emitting layer including a third compound and wherein the following general formula 2 is satisfied:
[general formula 2]
0.8
eV
≤
L
1
-
H
3
≤
1.4
eV
in the general formula 2, L 1 is the LUMO (Lowest Unoccupied Molecular Orbital) energy level of the first compound, and H 3 is the HOMO(Highest Occupied Molecular Orbital) energy level of the third compound.
5 . The organic electric element according to claim 1 , wherein the organic layer comprises a light emitting layer including a third compound and wherein the following general formula 3 is satisfied:
[general formula 3]
0.4
eV
≤
H
2
-
H
3
≤
0.9
eV
in the general formula 3, H 2 is the HOMO (Highest Occupied Molecular Orbital) energy level of the second compound, and H 3 is the HOMO (Highest Occupied Molecular Orbital) energy level of the third compound.
6 . A display panel comprising a subpixel comprising the organic electric element of claim 1 .
7 . A display device, comprising;
the display panel of claim 6 ; and
a driving circuit for driving the display panel.