US2008038586A1PendingUtilityA1
White Light Emitting Organic Electroluminescence Element, Display and Illuminator
Est. expiryJul 16, 2024(expired)· nominal 20-yr term from priority
H10K 85/658H10K 85/346C09K 11/06H10K 85/657H10K 85/649H10K 85/6572H10K 85/654H10K 50/11H10K 50/125H10K 85/322H10K 85/342H10K 85/361H10K 2101/10H10K 85/324H10K 85/341C09K 2211/1074C09K 2211/1022C09K 2211/1033C09K 2211/1044C09K 2211/1096Y02B20/00C09K 2211/1092C09K 2211/185C09K 2211/1029H05B 33/14C09K 2211/1037C09K 2211/1059
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Claims
Abstract
A white light emitting organic electroluminescent element comprising two electrodes having therebetween one or more constituting layers including a light emission layer, the one or more constituting layers comprising at least two phosphorescent compounds, wherein at least one of the phosphorescent compounds is a green light emitting ortho metalated complex; and a spectral ratio of the green light emitting ortho metalated complex in ae emission spectral distribution in a range of 400-800 nm is not less than 60%.
Claims
exact text as granted — not AI-modified1 . A white light emitting organic electroluminescent element comprising two electrodes having therebetween one or more constituting layers including a light emission layer, the one or more constituting layers comprising at least two phosphorescent compounds, wherein
at least one of the phosphorescent compounds is a green light emitting ortho metalated complex; and a spectral ratio of the green light emitting ortho metalated complex in an emission spectral distribution in a range of 400-800 nm is not less than 60%.
2 . The white light emitting organic electroluminescent element of claim 1 , wherein
at least one of the phosphorescent compounds is a blue light emitting ortho metalated complex; and a shortest emission peak wavelength of the blue light emitting ortho metalated complex is not more than 455 nm.
3 . The white light emitting organic electroluminescent element of claim 1 , wherein
at least one of the phosphorescent compounds is a red light emitting ortho metalated complex.
4 . The white light emitting organic electroluminescent element of claim 2 , wherein
the blue light emitting ortho metalated complex has at least one of the substructures represented by Formulas (1) to (6) or at last one of tautomers of the substructures represented by Formulas (1) to (6). [wherein, Z11 is an atomic group necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring; R 21 , R 12 and R 13 each are a hydrogen atom or a substituent; and M 11 is a metal belonging to one of Groups 8 to 10 of the periodic table.] [wherein, Z21 is an atomic group necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring; R 21 , R 22 and R 13 each are a hydrogen atom or a substituent; and M 21 is a metal belonging to one of Groups 8 to 10 of the periodic table.] [wherein, Z31 is an atomic group necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring; X 31 , X 32 and X 33 each are a carbon atom, —C(R 3 )—, a nitrogen atom or —N(R 3 )— (wherein, R 3 is a hydrogen atom or a substituent); C 31 is a carbon atom; M 31 is a metal belonging to one of Groups 8 to 10 of the periodic table; and a bond between C 31 and N, a bond between N and X 33 , a bond between X 32 and X 33 , a bond between X 31 and X 32 , and a bond between C 31 and X 31 each are a single bond or a double bond.] [wherein, Z41 is an atomic group necessary to form an aromatic heterocyclic ring; at least one of X 4 and X 42 is a nitrogen atom or —N(R 4 )— (wherein, R 4 is a hydrogen atom or a substituent); M 41 is a metal belonging to one of Groups 8 to 10 of the periodic table; C 41 , C 42 and C 43 each are a carbon atom; and a bond between C 41 and C 42 , a bond between C 41 and X 42 , a bond between X 41 and X 42 , a bond between X 41 and C 43 , and a bond between C 42 and C 43 each are a single bond or a double bond.] [wherein, Z51 is an atomic group necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring; X 51 is an oxygen atom or a sulfur atom; R 51 and R 52 each are a hydrogen atom or a substituent; and M 51 is a metal belonging to one of Groups 8 to 10 of the periodic table.] [wherein, Z61 is an atomic group necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring. X 61 , X 62 and X 63 each are a carbon atom, —C(R 6 )—, a nitrogen atom or —N(R 6 )— (wherein, R 6 is a hydrogen atom or a substituent); and M 61 is a metal belonging to one of Groups 8 to 10 of the periodic table.]
5 . The white light emitting organic electroluminescent element of claim 2 , wherein
the blue light emitting ortho metalated complex is a platinum complex represented by Formula (7). [wherein, R 1 , R 2 , R 3 , P4, R 5 , R 6 and R 7 each are a hydrogen atom or a substituent, provided that, at least one of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and R 7 is a substituent; Ra is a substituent; Xa is an oxygen atom or a sulfur atom; Y 1 -L1-Y, is a bidentate ligand; Y, and Y 2 each independently are an oxygen atom, a nitrogen atom, a carbon atom or a sulfur atom; and L1 is an atomic group necessary to form a bidentate ligand together with Y 1 and Y 2 .]
6 . The white light emitting organic electroluminescent element of claim 2 , wherein
the blue light emitting ortho metalated complex is a metal complex having a substructure represented by Formula (8) or (9). [wherein, A, B and C each are a hydrogen atom or a substituent, provided that at least two of A, B and C are represented by -Xa-(Ra) na (wherein Ra is a substituent, Xa is an oxygen atom, a sulfur atom or a nitrogen atom, and na is 1 or 2.), which may be the same or different; R 1 , R 2 , R 3 , R 4 and R 5 each are a hydrogen atom or a substituent; and M 1 is an element belonging to one Groups 8 to 10 of the periodic table.] [wherein, Rb, Rc and Rd each are a substituent; Xb, Xc and Xd each are an oxygen atom, a sulfur atom or a nitrogen atom; nb, nc and nd each are 1 or 2; R 6 , R 7 , R 8 , R 9 and R 10 each are a hydrogen atom or a substituent; and M 2 is an element belonging to one of Groups 8 to 10 of the periodic table.]
7 . The white light emitting organic electroluminescent element of claim 2 , wherein
the blue light emitting ortho metalated complex is a metal complex having a ligand represented by Formula (10), a metal complex having a substructure represented by Formula (11) or (12) or a metal complex having a tautomer of the substructure represented by Formula (11) or (12). [wherein, X 1 , X 2 , X 3 and R 4 each independently are a carbon atom or a nitrogen atom; C 1 and C 2 each are a carbon atom; Z1 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 1 , X 1 and X 3 ; Z2 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 2 , X 2 and X 4 ; A 1 is a nitrogen atom or a boron atom; R 1 is a substituent; and a bond between C, and X 1 , a bond between C 2 and X 2 , a bond between X 1 and X 3 , and a bond between X 2 and X 4 each are a single bond or a double bond.] [wherein, C 3 , C 4 , C 5 , C 6 and C 7 each are a carbon atom; Z3 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with together with C 3 , C 4 and C 5 ; Z4 represents a group of atoms necessary to form an aromatic heterocyclic ring together with together with C 6 , C 7 and N; A 2 is a nitrogen atom or a boron atom; R 2 is a substituent; and M 11 is an element belonging to one of Groups 8 to 10 of the periodic table; and a bond between C 3 and C 4 , a bond between C 4 and C 5 , a bond between C 6 and C 7 , and a bond between C 7 and N each are a single bond or a double bond.] [wherein, A 3 is a nitrogen atom or a boron atom; R 3 is a substituent; R 4 and R 5 each are a substituent; n1 and n2 each are an integer of 0-3; and M 12 is an element belonging to one of Groups 8 to 10 of the periodic table.]
8 . The white light emitting organic electroluminescent element of claim 2 , wherein
the blue light emitting ortho metalated complex is a metal complex having a ligand represented by Formula (13), a metal complex having a substructure represented by Formula (14), a metal complex having a substructure represented by Formula (15) or a tautomer of the substructure, a metal complex having a ligand represented by Formula (16), a metal complex having a substructure represented by Formula (17) or a metal complex having a substructure represented by Formula (18). [wherein, X 1 , X 2 , X 3 and X 4 each independently are a carbon atom or a nitrogen atom; C 1 and C 2 each are a carbon atom; Z1 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 1 , X 1 and X 3 ; Z2 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 2 , X 2 and X 4 ; A 1 is a carbon atom or a silicon atom; R 1 and R 2 each independently are a hydrogen atom or a substituent; and a bond between C 1 and X 1 , a bond between C 2 and X 2 , a bond between X 1 and X 3 , and a bond between X 2 and X 4 each are a single bond or a double bond.] [wherein, C 3 , C 4 , C 5 , C 6 and X 7 each are a carbon atom; Z3 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 5 , C 3 and C 7 ; Z4 represents a group of atoms necessary to form an aromatic heterocyclic ring together with C 6 , C 4 and N; A 2 is a carbon atom or a silicon atom; R 3 and R 4 each independently are a hydrogen atom or a substituent. M 11 is an element belonging to one of Groups 8 to 10 of the periodic table; and a bond between C 5 and C 3 , a bond between C 3 and C 7 , a bond between C 6 and C 4 , and a bond between C 4 and N each are a single bond or a double bond.] [wherein, A 3 is a carbon atom or a silicon atom; R 5 and R 6 each independently are a hydrogen atom or a substituent; and R 7 and R 8 each independently are a substituent; n1 and n2 each independently are an integer of 0-3; M 12 is an element belonging to one of Groups 8 to 10 of the periodic table.] [wherein, X 3 , X 4 , X 5 and X 6 each independently are a carbon atom or a nitrogen atom; C 8 -C 13 each are a carbon atom; Z5 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 8 , X 3 and X 5 ; Z6 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 9 , X 4 and X 6 ; Z7 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 10 and C 11 ; Z8 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 12 and C 13 ; A 4 is a carbon atom or a silicon atom; and a bond between X 3 and X 5 , a bond between X 4 and X 6 , a bond between C 8 and X 3 , and a bond between C 9 and X 4 , a bond between C 10 and C 11 and a bond between C 12 and C 13 each are a single bond or a double bond.] [wherein, C 14 -C 22 each are a carbon atom; Z9 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 16 , C 14 and C 18 ; Z11 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 19 and C 20 ; Z12 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 21 and C 22 ; each are an atomic group necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring; Z10 represents a group of atoms necessary to form an aromatic heterocyclic ring together with C 17 , C 15 and N; A 5 is a carbon atom or a silicon atom; M 21 is an element belonging to one of Groups 8 to 10 of the periodic table; and a bond between C 18 and C 14 , a bond between C 14 and C 16 , a bond between C 17 and C 15 , and a bond between C 15 and N, a bond between C 19 and C 20 , and a bond between C 21 and C 22 each are a single bond or a double bond.] [wherein, Z13 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 23 and C 24 ; Z14 represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring together with C 25 and C 26 ; A 5 is a carbon atom or a silicon atom. R 9 and R 10 each independently are a substituent; n3 and n4 each is an integer of 0-3; M 22 is an element belonging to one of Groups 8 to 10 of the periodic table; and a bond between C 23 and C 24 , and a bond between C 25 and C 26 each are a single bond or a double bond.]
9 . The white light emitting organic electroluminescent element of claim 2 , wherein
the blue light emitting ortho metalated complex comprises a platinum complex selected from the group consisting of Formulas (19)-(27). [wherein, R 1 and R 2 each are a hydrogen atom or a substituent, provided that at least one of R 1 and R 2 is the substituent; X 1 and X 2 each are a carbon atom, a nitrogen atom or a sulfur atom; and Z 1 and Z 2 each are an atomic group necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring; n1 is an integer of 1 or 2; L1 is a bidentate ligand when n1 is 1; and p1 and q1 each are an integer of 0-4.] [wherein, R 3 and R 4 each are a hydrogen atom or a substituent, provided that at least one of R 3 and R 4 is the substituent; n2 is an integer of 1 or 2; L2 is a bidentate ligand when n2 is 1; and p2 and q2 each are an integer of 0-4.] [wherein, R 5 and R 6 each are a hydrogen atom or a substituent. Z 3 is an atomic group necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring; n3 is an integer of 1 or 2; L3 is a bidentate ligand when n3 is 1; p3 is an integer of 0-3; and q3 is an integer of 0-4.] [wherein, R 7 and R 8 each are a hydrogen atom or a substituent. R 9 -R 13 each are a hydrogen atom or a substituent. n4 is an integer of 1 or 2; and L4 is a bidentate ligand when n4 is 1; p4 is an integer of 0-3; and q4 is an integer of 0-4.] [wherein, R 14 and R 15 each are a hydrogen atom or a substituent; Z 4 is an atomic group necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring; n5 is an integer of 1 or 2; L5 is a bidentate ligand when n5 is 1; p5 is an integer of 0-4; and q5 is an integer of 0-3.] [wherein, R 16 and R 17 each are a hydrogen atom or a substituent; R 18 -R 22 each are a hydrogen atom or a substituent; n6 is an integer of 1 or 2; L6 is a bidentate ligand when n6 is 1; p6 is an integer of 0-3; and q7 is an integer of 0-4.] [wherein, R 23 and R 24 each are a hydrogen atom or a substituent; Z 5 is an atomic group necessary to form an aromatic heterocyclic ring together with a nitrogen atom; n7 is an integer of 1 or 2; L7 is a bidentate ligand when n7 is 1; p8 is an integer of 0-3; and q6 is an integer of 0-4.] [wherein, R 25 and R 26 each are a hydrogen atom or a substituent; Z 6 is an atomic group necessary to form an aromatic heterocyclic ring together with a nitrogen atom; n8 is an integer of 1 or 2; L8 is a bidentate ligand when n8 is 1; p9 is an integer of 0-3; and q7 is an integer of 0-4.] [wherein, R 27 and R 28 each are a hydrogen atom or a substituent, provided that at least one of R 27 and R 28 is the substituent; L9 is a divalent linkage group; X 3 and X 4 each are a carbon atom, a nitrogen atom, an oxygen atom or a sulfur atom; Z 7 and Z 8 each are an atomic group necessary to form an aromatic hydrocarbon ring or an aromatic heterocyclic ring; n9 is an integer of 1 or 2; L9 is a bidentate ligand when n9 is 1; and p10 and q8 each are an integer of 0-4.]
10 . The white light emitting organic electroluminescent element of claim 2 , wherein
the blue light emitting ortho metalated complex comprises at least one substructure selected from the group consisting of Formulas (28)-(32) or a tautomer of the substructure. [wherein, C is a carbon atom; N is a nitrogen atom; Z 11 is an atomic group necessary to form an aromatic heterocyclic ring together with a carbon atom and a nitrogen atom; Z 12 is an atomic group necessary to form a non-aromatic ring together with a carbon atom; and M is a metal.] [wherein, C is a carbon atom; N is a nitrogen atom; Z 21 and Z 22 each are an atomic group necessary to form an aromatic heterocyclic ring together with a carbon atom and a nitrogen atom; and M is a metal.] [wherein, C is a carbon atom; N is a nitrogen atom; Z 31 is an atomic group necessary to form an aromatic heterocyclic ring together with a carbon atom and a nitrogen atom; Z 32 is an atomic group comprising a carbon atom, a nitrogen atom or an oxygen atom necessary to form a 5-membered or 6-membered aromatic heterocyclic ring together with a carbon atom; and M is a metal.] [wherein, C is a carbon atom; N is a nitrogen atom; Z 41 is an atomic group necessary to form a ring together with a carbon atom and a nitrogen atom; Z 42 is an atomic group necessary to form a ring together with a carbon atom; and M is a metal.] [wherein, C is a carbon atom; N is a nitrogen atom; Z 51 is an atomic group necessary to form an aromatic heterocyclic ring together with a carbon atom and a nitrogen atom; Z 52 is an atomic group to form an azulene ring together with a carbon atom; and M is a metal.]
11 . The white light emitting organic electroluminescent element of claim 2 comprising a platinum complex having a substructure represented by Formula (A) or (B).
[wherein, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and R 7 each are a hydrogen atom or a substituent, provided that at least one of R 1 , R 2 , R 3 and R 4 is an electron donating group; and Ra and Rb each are a substituent.]
[wherein, R 11 , R 12 , R 13 , R 14 , R 15 , R 16 and R 17 each are a hydrogen atom or a substituent, provided that at least one of R 11 and R 13 is an electron withdrawing group; and Rc and Rd each are a substituent.]
12 . The white light emitting organic electroluminescent element of claim 2 , wherein
a shortest emission peak wavelength of the blue light emitting ortho metalated complex is not more than 450 nm.
13 . The white light emitting organic electroluminescent element of claim 1 , wherein
the light emission layer or a layer adjacent to the light emission layer comprises a compound represented by Formula (33). [wherein, Z 1 is an aromatic heterocyclic ring which may have a substituent; Z 2 is an aromatic heterocyclic ring or an aromatic hydrocarbon ring each of which may have a substituent; and Z 3 is a divalent linkage group or a single bonding arm; and R 101 is a hydrogen atom or a substituent.]
14 . The white light emitting organic electroluminescent element of claim 13 , wherein Z 1 of the compound represented by Formula (33) is a 6-membered ring.
15 . The white light emitting organic electroluminescent element of claim 13 , wherein Z 2 of the compound represented by Formula (33) is a 6-membered ring.
16 . The white light emitting organic electroluminescent element of claim 13 , wherein Z 3 of the compound represented by Formula (33) is a single bonding arm.
17 . The white light emitting organic electroluminescent element of claim 13 , wherein a molecular weight of the compound represented by Formula (33) is not less than 450.
18 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (33-1).
[wherein, R 501 -R 507 each independently are a hydrogen atom or a substituent.]
19 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (33-2).
[wherein, R 511 -R 517 each independently are a hydrogen atom or a substituent.]
20 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (33-3).
[wherein, R 521 -R 527 each independently are a hydrogen atom or a substituent.]
21 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (33-4).
[wherein, R 531 -R 537 each independently are a hydrogen atom or a substituent.]
22 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (33-5).
[wherein, R 541 -R 548 each independently are a hydrogen atom or a substituent.]
23 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (33-6).
[wherein, R 551 -R 558 each independently are a hydrogen atom or a substituent.]
24 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (33-7).
[wherein, R 561 -R 567 each independently are a hydrogen atom or a substituent.]
25 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (33-8).
[wherein, R 571 -R 577 each independently are a hydrogen atom or a substituent.]
26 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (33-9).
[wherein, R 581 -R 588 each independently are a hydrogen atom or a substituent.]
27 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (33-10).
[wherein, R 591 -R 598 each independently are a hydrogen atom or a substituent.]
28 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) has at least one of the groups represented by Formulas (34-1)-(34-10).
[wherein, R 502 -R 507 , R 512 -R 517 , R 522 -R 527 , R 532 -R 537 , R 542 -R 548 , R 552 -R 558 , R 562 -R 567 , R 572 -R 577 , R 582 -R 588 and R 592 -R 598 , each independently are a hydrogen atom or a substituent, and the substituents may be the same with each other or may be different.]
29 . The white light emitting organic electroluminescent element of claim 28 , wherein the compound represented by Formula (33) is represented by Formula (35).
[wherein, R 601 -R 606 each independently are a hydrogen atom or a substituent, provided that at least one of R 601 -R 606 is a group selected from the groups represented by Formulas (34-1)-(34-10).]
30 . The white light emitting organic electroluminescent element of claim 28 , wherein the compound represented by Formula (33) is represented by Formula (36).
[wherein, R 611 -620 each independently are a hydrogen atom or a substituent, provided that at least one of R 611 -R 620 is one group selected from the groups represented by Formulas (34-1)-(34-10).]
31 . The white light emitting organic electroluminescent element of claim 28 , wherein the compound represented by Formula (33) is represented by Formula (37).
[wherein, R 621 -R 623 each independently are a hydrogen atom or a substituent, however, at least one of R 621 -R 623 is one group selected from the groups represented by Formulas (34-1)-(34-10).]
32 . The white light emitting organic electroluminescent element of claim 28 , wherein the compound represented by Formula (33) is represented by Formula (38).
[wherein, P631-R 645 each independently are a hydrogen atom or a substituent, provided that at least one of R 631 -R 645 is one group selected from the groups represented by Formulas (34-1)-(34-10).]
33 . The white light emitting organic electroluminescent element of claim 28 , wherein the compound represented by Formula (33) is represented by Formula (39).
[wherein, R 651 -R 656 each independently are a hydrogen atom or a substituent, provided that at least one of R 651 -R 656 is one group selected from the groups represented by Formulas (34-1)-(34-10); na is an integer of 0-5; and nb is an integer of 1-6, provided that a sum of na and nb is 6.]
34 . The white light emitting organic electroluminescent element of claim 28 , wherein the compound represented by Formula (33) is represented by Formula (40).
[wherein, R 661 -R 672 each independently are a hydrogen atom or a substituent, provided that at least one of R 661 -R 672 is one group selected from the groups represented by Formulas (34-1)-(34-10).]
35 . The white light emitting organic electroluminescent element of claim 28 , wherein the compound represented by Formula (33) is represented by Formula (41).
[wherein, R 681 -R 688 each independently are a hydrogen atom or a substituent, provided that at least one of R 681 -R 688 is one group selected from the groups represented by Formulas (34-1)-(34-10).]
36 . The white light emitting organic electroluminescent element of claim 28 , wherein the compound represented by Formula (33) is represented by Formula (42).
[wherein, R 689 -R 700 each independently are a hydrogen atom or a substituent; L1 is a divalent linkage group; at least one of R 691 -R 700 is one group selected from the groups represented by Formulas (34-1)-(34-10).]
37 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (43).
wherein, R 1 and R 2 each independently are a hydrogen atom or a substituent; n and m each are an integer of 1-2; and k and l each are an integer of 3-4, wherein, n+k=5 and l+m=5.]
38 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (44).
[wherein, R 1 and R 2 each independently are a hydrogen atom or a substituent; n and m each are an integer of 1-2; and k and l each are an integer of 3-4, wherein n+k=5 and l+m=5.]
39 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (45).
[wherein, R 1 and R 2 each independently are a hydrogen atom or a substituent; n and m each are an integer of 1-2; and k and l each are an integer of 3-4, wherein n+k=5 and l+m=5.]
40 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (46).
[wherein, R 1 and R 2 each independently are a hydrogen atom or a substituent; n and m each are an integer of 1-2; and k and l each are an integer of 3-4, wherein n+k=5 and l+m=5.]
41 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (47).
[wherein, R 1 and R 2 each independently are a hydrogen atom or a substituent; n and m each are an integer of 1-2; k and l each are an integer of 3-4, wherein, n+k=5 and l+m=5; and Z 1 , Z 2 , Z 3 and Z 4 each are a 6-membered aromatic heterocyclic ring comprising at least one nitrogen atom.]
42 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (48).
[wherein, o and p each are an integer of 1-3; Ar 1 and Ar 2 each are an arylene group or a divalent aromatic heterocyclic group; Z 1 and Z 2 each are a 6-membered aromatic heterocyclic ring comprising at least one nitrogen atom; and L is a divalent linkage group.]
43 . The white light emitting organic electroluminescent element of claim 13 , wherein the compound represented by Formula (33) is represented by Formula (49).
[wherein, o and p each are an integer of 1-3; Ar 1 and Ar 2 each are an arylene group or a divalent aromatic heterocyclic group; Z 1 , Z 2 , Z 3 and Z 4 each are a 6-membered aromatic heterocyclic ring containing at least one nitrogen atom; and L is a divalent linkage group.]
44 . The white light emitting organic electroluminescent element of claim 6 , wherein the light emission layer or a layer adjacent to the emission layer comprises the two kinds or more of phosphorescent compounds.
45 . A display having the white light emitting organic electroluminescent element of claim 1 .
46 . An illuminator having the white light emitting organic electroluminescent element of claim 1.Join the waitlist — get patent alerts
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