Compound, organic electroluminescent device and display device

1. A compound, comprising a structure as shown in Formula (I),

wherein X 1 -X 9 are each independently a C or N atom; wherein among X 1 -X 3 and X 7 -X 9 , X 2 , X 3 , X 7 , and X 8 are N atoms, and X 1 , X 9 are C atoms; L is selected from substituted or unsubstituted C5-C40 aryl, and substituted or unsubstituted C3-C40 heteroaryl;

Ar is Formula (II), wherein X is selected from an O or S atom;

R 1 -R 6 are each independently selected from substituted or unsubstituted C5-C40 aryl, and substituted or unsubstituted C3-C40 heteroaryl;

p 1 -p 4 are each independently selected from 0 or 1; p 5 -p 6 are each independently selected from 0, 1, 2, or 3;

m is selected from 0, 1, 2, or 3; n is selected from 1, 2, or 3; and

* represents a connection site.

2. The compound according to claim 1 , wherein X 1 and X 9 are identical, X 2 and X 8 are identical, and X 3 and X 7 are identical.

3. The compound according to claim 1 , wherein among X 4 -X 6 , X 4 is an N atom, and X 5 and X 6 are C atoms.

4. The compound according to claim 1 , wherein among X 4 -X 6 , X 4 and X 5 are N atoms, and X 6 is a C atom.

5. The compound according to claim 1 , wherein among X 4 -X 6 , X 5 and X 6 are N atoms, and X 4 is a C atom.

6. The compound according to claim 1 , wherein L is selected from any one of:

Z1 is selected from substituted or unsubstituted C5-C40 aryl, and substituted or unsubstituted C3-C40 heteroaryl;

q1 and q2 are each independently selected from 0, 1, or 2; and

# represents a connection site.

7. The compound according to claim 1 , wherein the Formula (II) is selected from any one of

8. The compound according to claim 1 , wherein the Formula (II) is selected from any one of

9. The compound according to claim 1 , wherein the connection site * in the Formula (II) is a position of a No. 3 carbon atom, a No. 4 carbon atom, a No. 5 carbon atom, a No. 6 carbon atom, a No. 7 carbon atom or a No. 8 carbon atom.

10. An organic electroluminescent device, comprising a first electrode, a second electrode, and an organic functional layer located between the first electrode and the second electrode, the organic functional layer comprises an electron transport layer, wherein an electron transport material of the electron transport layer comprises the compound according to claim 1 .

11. The organic electroluminescent device according to claim 10 , wherein the organic functional layer further comprises a hole blocking layer, and an electron transport material of the hole blocking layer comprises the compound according to claim 1 .

12. A display device, comprising the organic electroluminescent device according to claim 10 .

13. A compound, comprising a structure as shown in Formula (I),

wherein X 1 -X 9 are each independently a C or N atom; L is selected from substituted or unsubstituted C5-C40 aryl, and substituted or unsubstituted C3-C40 heteroaryl;

Ar is Formula (II), wherein X is selected from an O or S atom;

R 1 -R 6 are each independently selected from substituted or unsubstituted C5-C40 aryl, and substituted or unsubstituted C3-C40 heteroaryl;

p 1 -p 4 are each independently selected from 0 or 1; p 5 -p 6 are each independently selected from 0, 1, 2, or 3;

m is selected from 0, 1, 2, or 3; n is selected from 1, 2, or 3; and

* represents a connection site;

wherein among X 1 -X 3 and X 7 -X 9 , X 2 and X 8 are N atoms, and X 1 , X 3 , X 7 , X 9 are C atoms, and among X 4 -X 6 , X 4 is an N atom, and X 5 and X 6 are C atoms,

or

among X 1 -X 3 and X 7 -X 9 , X 2 and X 8 are N atoms, and X 1 , X 3 , X 7 , X 9 are C atoms, and among X 4 -X 6 , X 4 and X 5 are N atoms, and X 6 is a C atom,

or

among X 1 -X 3 and X 7 -X 9 , X 2 and X 8 are N atoms, and X 1 , X 3 , X 7 , X 9 are C atoms, and among X 4 -X 6 , X 5 and X 6 are N atoms, and X 4 is a C atom.

14. A compound, comprising a structure as shown in Formula (I),

wherein X 1 -X 9 are each independently a C or N atom; L is selected from substituted or unsubstituted C5-C40 aryl, and substituted or unsubstituted C3-C40 heteroaryl;

Ar is Formula (II), wherein X is selected from an O or S atom;

R 1 -R 6 are each independently selected from substituted or unsubstituted C5-C40 aryl, and substituted or unsubstituted C3-C40 heteroaryl;

p 1 -p 4 are each independently selected from 0 or 1; p 5 -p 6 are each independently selected from 0, 1, 2, or 3;

m is selected from 0, 1, 2, or 3; n is selected from 1, 2, or 3; and

* represents a connection site;

wherein among X 1 -X 3 and X 7 -X 9 , X 1 , X 3 , X 7 , and X 9 are N atoms, and among X 4 -X 6 , X 4 is an N atom, and X 5 and X 6 are C atoms,

or

among X 1 -X 3 and X 7 -X 9 , X 1 , X 3 , X 7 , and X 9 are N atoms, and among X 4 -X 6 , X 4 and X 5 are N atoms, and X 6 is a C atom.

15. A compound, comprising a structure as shown in Formula (I),

wherein X 1 -X 9 are each independently a C or N atom, and at least one of X 1 -X 9 is an N atom; L is selected from substituted or unsubstituted C5-C40 aryl, and substituted or unsubstituted C3-C40 heteroaryl;

Ar is Formula (II), wherein X is selected from an O or S atom;

R 1 -R 6 are each independently selected from substituted or unsubstituted C5-C40 aryl, and substituted or unsubstituted C3-C40 heteroaryl;

p 1 -p 4 are each independently selected from 0 or 1; p 5 -p 6 are each independently selected from 0, 1, 2, or 3;

m is selected from 0, 1, 2, or 3; n is selected from 1, 2, or 3; and

* represents a connection site; wherein the compound is selected from any one of: