US2018337347A1PendingUtilityA1
Light-emitting material, organic light-emitting device, and compound
Est. expiryFeb 28, 2034(~7.6 yrs left)· nominal 20-yr term from priority
C09K 2211/1007C07D 209/86C09K 2211/1044C09K 2211/1014C09K 2211/1037C09K 11/06C09K 2211/1029C07C 255/58C09K 2211/1033H01L 51/0059H01L 51/0072H01L 51/5012H10K 85/6572H10K 85/631H10K 50/11
59
PatentIndex Score
0
Cited by
0
References
0
Claims
Abstract
A compound represented by the general formula (1) is useful as a light-emitting material. R 1 , R 3 , and R 5 each represent a cyano group, or R 1 , R 2 , R 4 , and R 5 each represent a cyano group; and the others of R 1 to R 6 each represent a group represented by any one of the following general formula (4), etc.
Claims
exact text as granted — not AI-modified1 . An organic light-emitting device comprising a compound represented by the following general formula (1):
wherein in the general formula (1), R 1 , R 3 , and R 5 each represent a cyano group; and R 2 , R 4 , and R 6 each independently represent a group represented by any one of the following general formulae (2) to (8):
wherein in the general formulae (2) to (8), L 12 to L 18 each represent a single bond or a substituted or unsubstituted arylene group; * represents a position bonded to the benzene ring in the general formula (1); and R 11 to R 20 , R 21 to R 28 , R 31 to R 38 , R 3a , R 3b , R 41 to R 48 , R 4a , R 51 to R 58 , R 61 to R 68 , and R 71 to R 78 each independently represent a hydrogen atom or a substituent, provided that R 11 and R 12 , R 12 and R 13 , R 13 and R 14 , R 14 and R 15 , R 16 and R 17 , R 17 and R 18 , R 18 and R 19 , R 19 and R 20 , R 21 and R 22 , R 22 and R 23 , R 23 and R 24 , R 24 and R 25 , R 25 and R 26 , R 26 and R 27 , R 27 and R 28 , R 31 and R 32 , R 32 and R 33 , R 33 and R 34 , R 35 and R 36 , R 36 and R 37 , R 37 and R 38 , R 3a and R 3b , R 41 and R 42 , R 42 and R 43 , R 43 and R 44 , R 45 and R 46 , R 46 and R 47 , R 47 and R 48 , R 51 and R 52 , R 52 and R 53 , R 53 and R 54 , R 55 and R 56 , R 56 and R 57 , R 57 and R 58 , R 61 and R 62 , R 62 and R 63 , R 63 and R 64 , R 65 and R 66 , R and R 67 , R 67 and R 68 , R 71 and R 72 , R 72 and R 73 , R 73 and R 74 , R 75 and R 76 , R 76 and R 77 , and R 77 and R 78 each may be bonded to each other to form a cyclic structure.
2 . The organic light-emitting device according to claim 1 , wherein in the general formula (1), R 2 , R 4 , and R 6 each represent a group represented by the general formula (2).
3 . The organic light-emitting device according to claim 1 , wherein in the general formula (1), R 2 , R 4 , and R 6 each represent a group represented by the general formula (3).
4 . The organic light-emitting device according to claim 1 , wherein in the general formula (1), R 2 , R 4 , and R 6 each represent a group represented by the general formula (4).
5 . The organic light-emitting device according to claim 1 , wherein in the general formula (1), R 2 , R 4 , and R 6 each represent a group represented by the general formula (5).
6 . The organic light-emitting device according to claim 1 , wherein in the general formula (1), R 2 , R 4 , and R 6 each represent a group represented by the general formula (6).
7 . The organic light-emitting device according to claim 1 , wherein in the general formula (1), R 2 , R 4 , and R 6 each represent a group represented by the general formula (7).
8 . The organic light-emitting device according to claim 1 , wherein in the general formula (1), R 2 , R 4 , and R 6 each represent a group represented by the general formula (8).
9 . The organic light-emitting device according to claim 1 , wherein in the general formula (1), part of R 2 , R 4 , and R 6 have different structures.
10 . The organic light-emitting device according to claim 1 , wherein in the general formula (1), all of R 2 , R 4 , and R 6 have different structures.
11 . The organic light-emitting device according to claim 1 , wherein in the general formulae (2) to (8), R 11 to R 20 , R 21 to R 28 , R 31 to R 38 , R 3a , R 3b , R 41 to R 48 , R 4a , R 51 to R 58 , R 61 to R 68 , and R 71 to R 78 are a hydrogen atom.
12 . The organic light-emitting device according to claim 1 , wherein in the general formulae (2) to (8), none of R 11 and R 12 , R 12 and R 13 , R 13 and R 14 , R 14 and R 15 , R 16 and R 17 , R 17 and R 18 , R 18 and R 19 , R 19 and R 20 , R 21 and R 22 , R 22 and R 23 , R 23 and R 24 , R 24 and R 25 , R 25 and R 26 , R 26 and R 27 , R 27 and R 28 , R 31 and R 32 , R 32 and R 33 , R 33 and R 34 , R 35 and R 36 , R 36 and R 37 , R 37 and R 38 , R 3a and R 3b , R 41 and R 42 , R 42 and R 43 , R 43 and R 44 , R 45 and R 46 , R 46 and R 47 , R 47 and R 48 , R 51 and R 52 , R 52 and R 53 , R 53 and R 54 , R 55 and R 56 , R 56 and R 57 , R 57 and R 58 , R 61 and R 62 , R 62 and R 63 , R 63 and R 64 , R 65 and R 66 , R 66 and R 67 , R 67 and R 68 , R 71 and R 72 , R 72 and R 73 , R 73 and R 74 , R 75 and R 76 , R 76 and R 77 , and R 77 and R 78 are bonded to each other to form a cyclic structure.
13 . The organic light-emitting device according to claim 1 , wherein the compound represented by the general formula (1) has a rotationally symmetric structure.
14 . The organic light-emitting device according to claim 1 , wherein the compound represented by the general formula (1) has a molecular weight of 800 or less.
15 . The organic light-emitting device according to claim 1 , comprising the compound represented by the general formula (1) and a host material in a light-emitting layer.
16 . The organic light-emitting device according to claim 1 , comprising the compound represented by the general formula (1), a light-emitting material and a host material in a light-emitting layer.
17 . The organic light-emitting device according to claim 16 , wherein the compound represented by the general formula (1) has a lowest excited singlet energy level that is between the lowest excited singlet energy level of the host material and the lowest excited singlet energy level of the light-emitting material.
18 . The organic light-emitting device according to claim 15 , wherein the compound represented by the general formula (1) is contained in the light-emitting layer in an amount of 20% by weight or less.
19 . The organic light-emitting device according to claim 1 , wherein the organic light-emitting device emits delayed fluorescent light.
20 . The organic light-emitting device according to claim 1 , wherein the organic light-emitting device is an organic electroluminescent device.Cited by (0)
No later patents cite this yet.
References (0)
No backward citations on record.