Composition for optoelectronic device and organic optoelectronic device and display device

1. A composition, comprising:

a first compound;

a second compound; and

a third compound,

wherein:

the first compound, the second compound, and the third compound are different from each other,

the first compound is represented by one of Chemical Formula I-1A-1 Chemical Formula I-1B-1, and Chemical Formula I-1B-3,

the second compound is represented by one of Chemical Formula I-1A-1, Chemical Formula I-1B-1, and Chemical Formula I-1B-3, and

the third compound is represented by Chemical Formula II-1 or Chemical Formula III-3:

wherein, in Chemical Formula I-1A-1, Chemical Formula I-1B-1, and Chemical Formula I-1B-3,

X 3 is O, S, or NR k ,

X 5 is O, S, CR 205 R 206 , or NR m ,

L 2 , L 4 , and L 6 are independently a single bond or a substituted or unsubstituted phenylene group,

R k , R m , R 4 , and R 6 are independently a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, or a combination thereof,

R 38 to R 41 , R 45 , and R 46 are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, a substituted or unsubstituted silyl group, a substituted or unsubstituted amine group, a halogen, a cyano group, or a combination thereof, and

R 205 , R 206 , R 209 and R 210 are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a halogen, a cyano group, or a combination thereof;

wherein, in Chemical Formula II-1 and Chemical Formula III-3,

L 7 , L 8 , L 10 , L 11 , L a3 , L a4 and L 34 are independently a single bond, a substituted or unsubstituted C6 to C20 arylene group, a substituted or unsubstituted C2 to C20 heterocyclic group, or a combination thereof,

R 7 , R 8 , and R 57 to R 61 are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, or a combination thereof, and

R b3 , R b4 , and R 12 to R 19 are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, a substituted or unsubstituted silyl group, a substituted or unsubstituted amine group, a halogen, a cyano group, or a combination thereof.

2. The composition as claimed in claim 1 , further comprising a dopant.

3. The composition as claimed in claim 2 , wherein the dopant is represented by Chemical Formula IV or Chemical Formula V:

wherein, in Chemical Formula IV and Chemical Formula V,

X 100 is selected from O, S, and NR 131 ,

R 101 to R 131 are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, or —SiR 132 R 133 R 134 ,

R 132 to R 134 are independently C1 to C6 alkyl group,

at least one of R 101 to R 116 is a substituted or unsubstituted phenyl group represented by Chemical Formula IV-1,

L is a bidentate ligand of a monovalent anion, which is a ligand that coordinates to iridium through a non-covalent electron pair of carbon or heteroatom, and

n1 and n2 are independently an integer of 0 to 3, provided that n1+n2 is an integer of 1 to 3,

wherein, in Chemical Formula IV-1,

R 135 to R 139 are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, or —SiR 132 R 133 R 134 ,

* indicates a linking point, and

at least one of R 117 to R 131 is —SiR 132 R 133 R 134 or a tert-butyl group.

4. An organic optoelectronic device, comprising:

an anode and a cathode facing each other, and

at least one organic layer between the anode and the cathode,

wherein the organic layer includes the composition as claimed in claim 1 .

5. The organic optoelectronic device as claimed in claim 4 , wherein:

the organic layer includes a light emitting layer, and

the light emitting layer includes the composition.

6. The organic optoelectronic device as claimed in claim 4 , wherein the composition is a green light emitting composition or a red light emitting composition.

7. A display device comprising the organic optoelectronic device as claimed in claim 4 .

8. The composition as claimed in claim 1 , wherein:

the first compound is Compound 1-67:

the second compound is Compound 1-64:

and

the third compound is Compound 2-1: