IP Library › Granted Patent US 11,482,676
Granted Patent B2
US 11,482,676 · App. 16/932,802 · Granted Oct 25, 2022

Light emitting diode including boron compound

Inventors: Sung Hoon Joo (Cheongju-si, KR); Ji-Hwan Kim (Cheongju-si, KR); Byung-sun Yang (Cheongju-si, KR); Hyeon Jun Jo (Cheongju-si, KR); Sungeun Choi (Cheongju-si, KR); Su-Jin Kim (Cheongju-si, KR); Bong-Ki Shin (Cheongju-si, KR); Soon-Wook Cha (Cheongju-si, KR); Yoona Shin (Cheongju-si, KR); Sung woo Kim (Cheongju-si, KR); Jiwon Lee (Cheongju-si, KR); Tae Young Kim (Cheongju-si, KR); Seok-bae Park (Cheongju-si, KR); Yu-rim Lee (Cheongju-si, KR); Hee-dae Kim (Cheongju-si, KR); Seongeun Woo (Cheongju-si, KR); Dong Myung Park (Cheongju-si, KR)
Assignee: SFC CO., LTD.
H01L51/0059H01L51/0073H01L51/0074H01L51/5056H01L51/5072H01L51/5092
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Quick Facts
Patent No.
US 11,482,676
App. No.
16/932,802
Granted
Oct 25, 2022
Kind
B2
Abstract

Disclosed herein is an organic light emitting diode comprising a compound represented by Chemical Formula A or B and an anthracene derivative represented by Chemical Formula H. Here, Chemical Formulas A, B, and H are as described in the specification.

Claims (59)

1. An organic light emitting diode, comprising:

a first electrode;

a second electrode facing the first electrode; and

a light emitting layer interposed between the first electrode and the second electrode,

wherein the light emitting layer comprises any one of compounds represented by Chemical Formula A or B, below and a compound represented by Chemical Formula H, below:

wherein,

Q1 to Q3, which are same or different, are each independently a substituted or unsubstituted aromatic hydrocarbon ring of 6 to 50 carbon atoms or a substituted or unsubstituted heteroaromatic ring of 2 to 50 carbon atoms,

X is any one selected from B, P, P═O, and P═S, and

Y 1 to Y 3 , which are same or different, are each independently any one selected from N—R 1 , CR 2 R 3 , O, S, Se, and SiR 4 R 5 ,

wherein

R 1 to R 5 , which are same or different, are each independently any one selected from a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl of 1 to 30 carbon atoms, an alkenyl of 2 to 24 carbon atoms, an alkynyl of 2 to 24 carbon atoms, a substituted or unsubstituted aryl of 6 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl of 3 to 30 carbon atoms, a substituted or unsubstituted heterocycloalkyl of 1 to 30 carbon atoms, a substituted or unsubstituted heteroaryl of 2 to 50 carbon atoms, a substituted or unsubstituted alkoxy of 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy of 1 to 60 carbon atoms, a substituted or unsubstituted alkylthioxy of 1 to 30 carbon atoms, a substituted or unsubstituted arylthioxy of 6 to 30 carbon atoms, a substituted or unsubstituted alkylamine of 1 to 30 carbon atoms, a substituted or unsubstituted arylamine of 6 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl of 1 to 30 carbon atoms, a substituted or unsubstituted arylsilyl of 6 to 30 carbon atoms, a nitro, a cyano, and a halogen,

R 2 and R 4 can be connected to R 3 and R 5 , respectively, to form an additional mono- or polycyclic aliphatic or aromatic ring,

R 1 to R 5 in Y 1 can each be independently connected to the Q 1 ring moiety to form an additional mono- or polycyclic aliphatic or aromatic ring,

R 1 to R 5 in Y 2 can each be independently connected to the Q 2 ring moiety or the Q 3 ring moiety to form an additional mono- or polycyclic aliphatic or aromatic ring,

R 1 to R 5 in Y 3 can each be independently connected to the Q 1 ring moiety or the Q 3 ring moiety to form an additional mono- or polycyclic aliphatic or aromatic ring;

in Chemical Formula B,

any of R 1 to R 5 in Y 1 can be connected to any of R 1 to R 5 in Y 3 to form an additional mono- or polycyclic aliphatic or aromatic ring; and

Ar 9 is a substituted or unsubstituted aryl of 6 to 50 carbon atoms or a substituted or unsubstituted heteroaryl of 2 to 50 carbon atoms;

R 11 to R 18 , which are same or different, are each independently any one selected from a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl of 1 to 30 carbon atoms, a substituted or unsubstituted aryl of 6 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl of 3 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl of 1 to 30 carbon atoms, a substituted or unsubstituted arylsilyl of 6 to 30 carbon atoms, a nitro, a cyano, and a halogen, and

R 19 to R 26 , which are same or difference, are each independently a hydrogen atom, a deuterium atom, or a substituted or unsubstituted aryl, wherein one of R 19 to R 22 is a single bond connecting to linker L 13 , L 13 is a single bond or a substituted or unsubstituted arylene of 6 to 20 carbon atoms, and

k is an integer of 1 to 3 wherein when k is 2 or greater, the L 13 's are same or different,

wherein the team “substituted” in the expression “substituted or unsubstituted” used for compounds of Chemical Formulas A, B, and Chemical Formula H means having at least one substituent selected from the group consisting of a deuterium atom, a cyano, a halogen, a hydroxyl, a nitro, an alkyl of 1 to 24 carbon atoms, a halogenated alkyl of 1 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, an alkynyl of 2 to 24 carbon atoms, a cycloalkyl of 3 to 24 carbon atoms, a heteroalkyl of 1 to 24 carbon atoms, an aryl of 6 to 24 carbon atoms, an arylalkyl of 7 to 24 carbon atoms, an alkylaryl of 7 to 24 carbon atoms, a heteroaryl of 2 to 24 carbon atoms, a heteroarylalkyl of 2 to 24 carbon atoms, an alkoxy of 1 to 24 carbon atoms, an alkylamino of 1 to 24 carbon atoms, a diarylamino of 12 to 24 carbon atoms, a diheteroarylamino of 2 to 24 carbon atoms, an aryl(heteroaryl)amino of 7 to 24 carbon atoms, an alkylsilyl of 1 to 24 carbon atoms, an arylsilyl of 6 to 24 carbon atoms, an aryloxy of 6 to 24 carbon atoms, and an arylthionyl of 6 to 24 carbon atoms.

2. The light emitting diode of claim 1 , wherein at least one of the linkers Y 2 and Y 3 in Chemical Formulas A and B is N—R 1 wherein R 1 is as defined in claim 1 .

3. The light emitting diode of claim 2 , wherein R 1 is a substituted or unsubstituted aryl of 6 to 50 carbon atoms or a substituted or unsubstituted heteroaryl of 2 to 50 carbon atoms.

4. The light emitting diode of claim 2 , wherein at least one of the linkers Y 2 and Y 3 in Chemical Formulas A and B, which are same or different is a linker represented by the following Structural Formula A:

wherein -*” denotes a bonding site at which the N atom is bonded to the doubly bonded carbon atom connected to Y1, the doubly bonded carbon atom connected to Y3 in the 5-membered ring bearing Y1, an aromatic carbon atom in the Q2 ring moiety, or an aromatic carbon atom in the Q3 ring moiety;

R 41 to R 45 , which are same or different, are each independently any one selected from a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl of 1 to 30 carbon atoms, alkenyl of 2 to 24 carbon atoms, an alkynyl of 2 to 24 carbon atoms, a substituted or unsubstituted aryl of 6 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl of 3 to 30 carbon atoms, a substituted or unsubstituted heterocycloalkyl of 1 to 30 carbon atoms, a substituted or unsubstituted heteroaryl of 2 to 50 carbon atoms, a substituted or unsubstituted alkoxy of 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy of 1 to 60 carbon atoms, a substituted or unsubstituted alkylthioxy of 1 to 30 carbon atoms, a substituted or unsubstituted arylthioxy of 5 to 30 carbon atoms, a substituted or unsubstituted alkylamine of 1 to 30 carbon atoms, a substituted or unsubstituted arylamine of 5 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl of 1 to 30 carbon atoms, a substituted or unsubstituted arylsilyl of 5 to 30 carbon atoms, a nitro, a cyano, and a halogen, and R 41 and R 45 may each independently be bonded to the Q 1 , Q 2 , or Q 3 ring moiety to form an additionally aliphatic or aromatic mono- or polycyclic ring.

5. The light emitting diode of claim 2 , wherein the linkers Y 2 and Y 3 in Chemical Formulas A and B are same or different and are each N—R 1 wherein R 1 is as defined in claim 1 .

6. The light emitting diode of claim 1 , wherein the linker Y 1 in Chemical Formulas A and B is an oxygen atom (O) or sulfur atom (S).

7. The light emitting diode of claim 1 , wherein X in Chemical Formulas A and B is a boron atom (B).

8. The light emitting diode of claim 1 , wherein Q 1 to Q 3 are same or different and are each independently a substituted or unsubstituted aromatic hydrocarbon ring of 6 to 50 carbon atoms.

9. The light emitting diode of claim 8 , wherein the aromatic hydrocarbon rings of Q 1 to Q 3 are same or different and are each independently any one selected from [Structural Formula 10] to [Structural Formula 21]:

wherein,

“-*” denotes a bonding site at which the carbon ring member of Q 1 is bonded to Y 1 or a carbon member of the 5-membered ring bearing Y 1 or at which the carbon ring member of Q 2 is bonded to X or Y 2 ;

R's, which are same or different, are each independently any one selected from a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl of 1 to 30 carbon atoms, alkenyl of 2 to 24 carbon atoms, an alkynyl of 2 to 24 carbon atoms, a substituted or unsubstituted aryl of 6 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl of 3 to 30 carbon atoms, a substituted or unsubstituted heterocycloalkyl of 1 to 30 carbon atoms, a substituted or unsubstituted heteroaryl of 2 to 50 carbon atoms, a substituted or unsubstituted alkoxy of 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy of 1 to 60 carbon atoms, a substituted or unsubstituted alkylthioxy of 1 to 30 carbon atoms, a substituted or unsubstituted arylthioxy of 5 to 30 carbon atoms, a substituted or unsubstituted alkylamine of 1 to 30 carbon atoms, a substituted or unsubstituted diarylamino of 12 to 24 carbon atoms, a substituted or unsubstituted diheteroarylamino of 2 to 24 carbon atoms, a substituted or unsubstituted aryl(heteroaryl)amino of 7 to 24 carbon atoms, a substituted or unsubstituted alkylsilyl of 1 to 30 carbon atoms, a substituted or unsubstituted arylsilyl of 5 to 30 carbon atoms, a nitro, a cyano, and a halogen; and

m is an integer of 1 to 8 wherein when m is 2 or greater or when two or more R's exist, the individual R's are same or different.

10. The light emitting diode of claim 8 , wherein the aromatic hydrocarbon ring of Q 3 in Chemical Formulas A and B is a ring represented by the following [Structural Formula B]:

wherein,

“-*” denotes a bonding site at which the corresponding aromatic carbon ring members of Q 3 are bonded to Y 2 , X and Y 3 , respectively; and

R 55 to R 57 , which are same or different, are each independently any one selected from a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl of 1 to 30 carbon atoms, alkenyl of 2 to 24 carbon atoms, an alkynyl of 2 to 24 carbon atoms, a substituted or unsubstituted aryl of 6 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl of 3 to 30 carbon atoms, a substituted or unsubstituted heterocycloalkyl of 1 to 30 carbon atoms, a substituted or unsubstituted heteroaryl of 2 to 50 carbon atoms, a substituted or unsubstituted alkoxy of 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy of 1 to 60 carbon atoms, a substituted or unsubstituted alkylthioxy of 1 to 30 carbon atoms, a substituted or unsubstituted arylthioxy of 5 to 30 carbon atoms, a substituted or unsubstituted alkylamine of 1 to 30 carbon atoms, a substituted or unsubstituted diarylamino of 12 to 24 carbon atoms, a substituted or unsubstituted diheteroarylamino of 2 to 24 carbon atoms, a substituted or unsubstituted aryl(heteroaryl)amino of 7 to 24 carbon atoms, a substituted or unsubstituted alkylsilyl of 1 to 30 carbon atoms, a substituted or unsubstituted arylsilyl of 5 to 30 carbon atoms, a nitro, a cyano, and a halogen, and R 55 to R 57 can each be linked to an adjacent substituent to form an additional aliphatic or aromatic mono- or polycyclic ring.

11. The light emitting diode of claim 1 , wherein the aromatic hydrocarbon ring of 6 to 50 carbon atoms or the heteroaromatic ring of 2 to 50 carbon atoms of at least one of the Q1 to Q3 ring moieties is bonded to an aryl amino radical represented by the following Structural Formula F:

wherein,

“-*” denotes a bonding site participating in forming a bond to a carbon aromatic ring member of any one of Q 1 to Q 3 , and

Ar 11 and Ar 12 , which are same or different, are each independently a substituted or unsubstituted aryl of 6 to 18 carbon atoms, and can be linked to each other to form a ring.

12. The light emitting diode of claim 4 , wherein at least one of R 41 and R 45 in Structural Formula A is bonded to the Q 3 ring moiety to form an additional aliphatic or aromatic mono- or polycyclic ring.

13. The light emitting diode of claim 1 , wherein the compound represented by Chemical Formula A or B is any one selected from <Chemical Formula 1> to <Chemical Formula 204>:

14. The light emitting diode of claim 1 , wherein the compound represented by Chemical Formula H is used as a host in the light emitting layer and the compound represented by Chemical Formula A or B is used as a dopant in the light emitting layer.

15. The light emitting diode of claim 14 , further comprising at least one of a hole injection layer, a hole transport layer, a functional layer capable of both hole injection and hole transport, an electron transport layer, and an electron injection layer, in addition to the light-emitting layer.

16. The light emitting diode of claim 1 , wherein Ar 9 is a deuterium-substituted or unsubstituted phenyl, and R 11 to R 18 are same or different and are each independently a hydrogen atom or a deuterium atom, in Chemical Formula H.

17. The light emitting diode of claim 16 , wherein the anthracene derivative represented by Chemical Formula H is deuterated at a degree of deuteration of 30% or greater.

18. The light emitting diode of claim 17 , wherein the anthracene derivative represented by Chemical Formula H has a degree of deuteration of 40% or greater.

19. The light emitting diode of claim 16 , wherein all of the carbon aromatic ring members of Arg in Chemical Formula H are deuterated.

20. The light emitting diode of claim 16 , wherein R 11 to R 14 or R 15 to R 18 in Chemical Formula H are each a deuterium atom.

21. The light emitting diode of claim 16 , wherein R 11 to R 18 in Chemical Formula H are each a deuterium atom.

22. The light emitting diode of claim 1 , wherein at least one of R 23 to R 26 in Chemical Formula H is a deuterium-substituted aryl of 6 to 20 carbon atoms.

23. The light emitting diode of claim 1 , wherein the linker L 13 in Chemical Formula H is a single bond.

24. The light emitting diode of claim 1 , wherein the anthracene derivative in Chemical Formula H is any one selected from the following Compounds 1 to 78:

25. The light emitting diode of claim 15 , wherein at least one of the layers is formed using a deposition process or a solution process.

26. The light emitting diode of claim 1 , wherein the organic light-emitting diode is used for a device selected from among a flat display device; a flexible display device; a monochrome or white flat illumination device; and a monochrome or white flexible illumination device.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 19, 2020
From: JOO, SUNG HOON; KIM, JI-HWAN; YANG, BYUNG-SUN; JO, HYEON JUN; CHOI, SUNGEUN; KIM, SU-JIN; SHIN, BONG-KI; CHA, SOON-WOOK; SHIN, YOONA; KIM, SUNG WOO; LEE, JIWON; KIM, TAE YOUNG; PARK, SEOK-BAE; LEE, YU-RIM; KIM, HEE-DAE; WOO, SEONGEUN; PARK, DONG MYUNG
To: SFC CO., LTD.
Reel/Frame 053247/0562 →
Priority Claims (1)
KR 10-2019-0091889 · Jul 29, 2019 · national
Continuity (1)
Related Publication 20210036233A1 · Feb 4, 2021