IP Library › Granted Patent US 12,501,828
Granted Patent B2
US 12,501,828 · App. 16/726,452 · Granted Dec 16, 2025

Organic light-emitting device and apparatus including the same

Inventors: Masaki Numata (Yokohama, JP); Masaru Kinoshita (Yokohama, JP); Mitsunori Ito (Yokohama, JP); Wataru Sotoyama (Yokohama, JP)
Assignee: SAMSUNG ELECTRONICS CO., LTD.
H10K85/6572H10K50/11H10K85/622H10K85/654H10K85/6574H10K85/6576
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,501,828
App. No.
16/726,452
Granted
Dec 16, 2025
Kind
B2
Abstract

An organic light-emitting device comprising: a first electrode; a second electrode; and an emission layer between the first electrode and the second electrode, wherein the emission layer comprising a first compound, a second compound, and a third compound, the first compound comprising at least one compound represented by one of Formulae 1-1 to 1-4, the second compound comprising at least one compound represented by one of Formulae 2-1 to 2-4, and the third compound includes at least one of a triphenylene group, a dibenzofuran group, a dibenzothiophene group, a fluorene group, a biscarbazole group, or any combination thereof, wherein a band gap between a highest occupied molecular orbital (HOMO) band energy level and a lowest unoccupied molecular orbital (LUMO) band energy level of the third compound is 3.3 eV or more. Formulae 1-1 to 1-4 and Formulae 2-1 to 2-4 are described herein.

Claims (137)

1 . An organic light-emitting device comprising:

a first electrode;

a second electrode; and

an emission layer between the first electrode and the second electrode,

wherein the emission layer comprises a composition comprising a first compound, a second compound, and a third compound,

the first compound comprises at least one compound represented by one of Formulae 1-1 to 1-4, provided that when the first compound is of Formula 1-1, then the first compound does not comprise a triphenylene group,

the second compound comprises at least one compound represented by one of Formulae 2-1 to 2-4, and

the third compound comprises at least one group represented by one of Formulae 3-1 to 3-3, wherein a band gap between a highest occupied molecular orbital band energy level and a lowest unoccupied molecular orbital band energy level of the third compound is 3.3 eV or more,

the first compound is an electron transporting host compound, the second compound is a hole transporting host compound, and the third compound is a wide-bandgap compound:

wherein, in Formulae 1-1 to 1-4,

X 11 to X 16 and X 21 to X 28 are each independently C or N,

at least one of X 11 to X 16 is N,

at least one of X 21 to X 28 is N,

L 1 to L 6 are each independently a single bond, a substituted or unsubstituted C 6 -C 30 arylene group, a substituted or unsubstituted C 1 -C 30 heteroarylene group, a divalent non-aromatic condensed polycyclic group, or a divalent non-aromatic condensed heteropolycyclic group,

c3 to c5 are each independently an integer from 1 to 3,

Ar 1 to Ar 6 are each independently a substituted or unsubstituted C 6 -C 30 aryl group, a substituted or unsubstituted C 1 -C 30 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, or a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group,

wherein in Formula 1-1, at least two of -[Li 1 Ar 1 ] a1 comprise a carbazole group,

any two adjacent groups among Ar 3 to Ar 5 are optionally linked to each other via a single bond to form a condensed ring,

a1 is 3, wherein the three -[L 1 Ar 1 ] groups are different from each other,

a2 and a3 are each independently an integer from 1 to 3,

provided that:

i) when a2 is 2, then b2 is 1 and R 2 is not hydrogen,

R 1 to R 3 are each independently hydrogen, deuterium, —F, —Cl, —Br, —I, a cyano group, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, or a substituted or unsubstituted C 1 -C 60 alkoxy group,

b1 is an integer from 0 to 2,

b2 is an integer from 0 to 6,

b3 is an integer from 7 to 11, and

k is 3 or 4, and

in Formulae 2-1 to 2-4,

A 1 to A 6 are each independently a C 5 -C 30 carbocyclic group or a C 1 -C 30 heterocyclic group,

L 11 to L 19 are each independently a single bond, a substituted or unsubstituted C 6 -C 30 arylene group, a substituted or unsubstituted C 1 -C 30 heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, or a substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group,

c11 to c19 are each independently an integer from 1 to 3,

Ar 11 , Ar 12 , and Ar 14 to Ar 17 are each independently a substituted or unsubstituted C 6 -C 30 aryl group, a substituted or unsubstituted C 1 -C 30 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, or a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, wherein each of Ar 14 and Ar 15 is not an indolocarbazole group, and each of Ar 16 and Ar 17 is not a naphthyl group at the same time,

Ar 13 is a substituted or unsubstituted C 6 -C 30 aryl group or a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group,

R 11 to R 24 are each independently hydrogen, deuterium, —F, —Cl, —Br, —I, a cyano group, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, a substituted or unsubstituted C 1 -C 60 alkoxy group, a substituted or unsubstituted C 6 -C 30 aryl group, a substituted or unsubstituted C 1 -C 30 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, or a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group,

b11, b14, b15, b16, and b18 to b24 are each independently an integer from 0 to 4,

b12, b13, and b17 are each independently an integer from 0 to 3,

wherein, in Formulae 3-1 to 3-3,

X 21 is O or S,

L 21 to L 27 are each independently a single bond, a substituted or unsubstituted C 6 -C 30 arylene group,

c21 to c27 are each independently an integer from 1 to 3,

Ar 21 to Ar 27 are each independently:

hydrogen, a phenyl group, a biphenyl group, a terphenyl group, a quaterphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, or an ovalenyl group; or

a phenyl group, a biphenyl group, a terphenyl group, a quaterphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, or an ovalenyl group, each substituted with at least one deuterium, —F, —Cl, —Br, —I, —CD 3 , —CD 2 H, —CDH 2 , —CF 3 , —CF 2 H, —CFH 2 , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a phenyl group, a biphenyl group, a terphenyl group, a quaterphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, an ovalenyl group, or any combination thereof,

each of Ar 21 and Ar 22 is not hydrogen at the same time,

Ar 26 and Ar 27 are optionally linked to each other via a single bond to form a condensed ring,

R 31 to R 37 are each independently hydrogen, deuterium, —F, —Cl, —Br, —I, a cyano group, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, or a substituted or unsubstituted C 1 -C 60 alkoxy group,

b31, b32, b34, b35, and b36 are each independently an integer from 0 to 3, and

b33 is each independently an integer from 0 to 4,

at least one substituent of the substituted C 6 -C 30 arylene group, the substituted C 1 -C 30 heteroarylene group, the substituted divalent non-aromatic condensed polycyclic group, the substituted divalent non-aromatic condensed heteropolycyclic group, the substituted C 1 -C 60 alkyl group, the substituted C 2 -C 60 alkenyl group, the substituted C 2 -C 60 alkynyl group, the substituted C 1 -C 60 alkoxy group, the substituted C 6 -C 30 aryl group, the substituted C 1 -C 30 heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group is:

deuterium, —F, —Cl, —Br, —I, —CD 3 , —CD 2 H, —CDH 2 , —CF 3 , —CF 2 H, —CFH 2 , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C 1 -C 60 alkyl group, a C 2 -C 60 alkenyl group, a C 2 -C 60 alkynyl group, a C 1 -C 60 alkoxy group, or any combination thereof,

a C 1 -C 60 alkyl group, a C 2 -C 60 alkenyl group, a C 2 -C 60 alkynyl group, and a C 1 -C 60 alkoxy group, or any combination thereof, each substituted with at least one deuterium, —F, —Cl, —Br, —I, —CD 3 , —CD 2 H, —CDH 2 , —CF 3 , —CF 2 H, —CFH 2 , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C 3 -C 10 cycloalkyl group, a C 1 -C 10 heterocycloalkyl group, a C 3 -C 10 cycloalkenyl group, a C 1 -C 10 heterocycloalkenyl group, a C 6 -C 60 aryl group, a C 6 -C 60 aryloxy group, a C 6 -C 60 arylthio group, a C 1 -C 60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q 11 )(Q 12 ), —Si(Q 13 )(Q 14 )(Q 15 ), —B(Q 16 )(Q 17 ), —P(═O)(Q 18 )(Q 19 ), or any combination thereof;

a C 3 -C 10 cycloalkyl group, a C 1 -C 10 heterocycloalkyl group, a C 3 -C 10 cycloalkenyl group, a C 1 -C 10 heterocycloalkenyl group, a C 6 -C 60 aryl group, a C 6 -C 60 aryloxy group, a C 6 -C 60 arylthio group, a C 1 -C 60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, or any combination thereof;

a C 3 -C 10 cycloalkyl group, a C 1 -C 10 heterocycloalkyl group, a C 3 -C 10 cycloalkenyl group, a C 1 -C 10 heterocycloalkenyl group, a C 6 -C 60 aryl group, a C 6 -C 60 aryloxy group, a C 6 -C 60 arylthio group, a C 1 -C 60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, or any combination thereof, each substituted with at least one deuterium, —F, —Cl, —Br, —I, —CD 3 , —CD 2 H, —CDH 2 , —CF 3 , —CF 2 H, —CFH 2 , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C 1 -C 60 alkyl group, a C 2 -C 60 alkenyl group, a C 2 -C 60 alkynyl group, a C 1 -C 60 alkoxy group, a C 3 -C 10 cycloalkyl group, a C 1 -C 10 heterocycloalkyl group, a C 3 -C 10 cycloalkenyl group, a C 1 -C 10 heterocycloalkenyl group, a C 6 -C 60 aryl group, a C 6 -C 60 aryloxy group, a C 6 -C 60 arylthio group, a C 1 -C 60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q 21 )(Q 22 ), —Si(Q 23 )(Q 24 )(Q 25 ), —B(Q 26 )(Q 27 ), —P(═O)(Q 28 )(Q 29 ), or any combination thereof; or

—N(Q 31 )(Q 32 ), —Si(Q 33 )(Q 34 )(Q 35 ), —B(Q 36 )(Q 37 ), —P(═O)(Q 38 )(Q 39 ), or any combination thereof, and

Q 1 to Q 9 , Q 11 to Q 19 , Q 21 to Q 29 , and Q 31 to Q 39 are each independently hydrogen, deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C 1 -C 60 alkyl group, a C 2 -C 60 alkenyl group, a C 2 -C 60 alkynyl group, a C 1 -C 60 alkoxy group, a C 3 -C 10 cycloalkyl group, a C 1 -C 10 heterocycloalkyl group, a C 3 -C 10 cycloalkenyl group, a C 1 -C 10 heterocycloalkenyl group, a C 6 -C 60 aryl group, a C 6 -C 60 aryl group substituted with at least one of a C 1 -C 60 alkyl group, a C 6 -C 60 aryl group, or a combination thereof, a C 6 -C 60 aryloxy group, a C 6 -C 60 arylthio group, a C 1 -C 60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group.

2 . The organic light-emitting device of claim 1 , wherein

L 1 to L 6 and L 11 to L 19 are each independently a single bond, a phenylene group, a pentalenylene group, an indenylene group, a naphthylene group, an azulenylene group, a heptalenylene group, an indacenylene group, an acenaphthylene group, a fluorenylene group, a spiro-fluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenalenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, a naphthacenylene group, a picenylene group, a perylenylene group, a pentaphenylene group, a hexacenylene group, a pentacenylene group, a rubicenylene group, a coronenylene group, an ovalenylene group, a pyrrolylene group, a thiophenylene group, a furanylene group, an imidazolylene group, a pyrazolylene group, a thiazolylene group, an isothiazolylene group, an oxazolylene group, an isoxazolylene group, a pyridinylene group, a pyrazinylene group, a pyrimidinylene group, a pyridazinylene group, an isoindolylene group, an indolylene group, an indazolylene group, a purinylene group, a quinolinylene group, an isoquinolinylene group, a benzoquinolinylene group, a phthalazinylene group, a naphthyridinylene group, a quinoxalinylene group, a quinazolinylene group, a cinnolinylene group, a carbazolylene group, a phenanthridinylene group, an acridinylene group, a phenanthrolinylene group, a phenazinylene group, a benzoimidazolylene group, a benzofuranylene group, a benzothiophenylene group, an isobenzothiazolylene group, a benzoxazolylene group, an isobenzoxazolyl group, a triazolylene group, a tetrazolylene group, an oxadiazolylene group, a triazinylene group, a dibenzofuranylene group, a dibenzothiophenylene group, a benzocarbazolylene group, or a dibenzocarbazolylene group; or

a phenylene group, a pentalenylene group, an indenylene group, a naphthylene group, an azulenylene group, a heptalenylene group, an indacenylene group, an acenaphthylene group, a fluorenylene group, a spiro-fluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenalenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, a naphthacenylene group, a picenylene group, a perylenylene group, a pentaphenylene group, a hexacenylene group, a pentacenylene group, a rubicenylene group, a coronenylene group, an ovalenylene group, a pyrrolylene group, a thiophenylene group, a furanylene group, an imidazolylene group, a pyrazolylene group, a thiazolylene group, an isothiazolylene group, an oxazolylene group, an isoxazolylene group, a pyridinylene group, a pyrazinylene group, a pyrimidinylene group, a pyridazinylene group, an isoindolylene group, an indolylene group, an indazolylene group, a purinylene group, a quinolinylene group, an isoquinolinylene group, a benzoquinolinylene group, a phthalazinylene group, a naphthyridinylene group, a quinoxalinylene group, a quinazolinylene group, a cinnolinylene group, a carbazolylene group, a phenanthridinylene group, an acridinylene group, a phenanthrolinylene group, a phenazinylene group, a benzimidazolylene group, a benzofuranylene group, a benzothiophenylene group, an isobenzothiazolylene group, a benzoxazolylene group, an isobenzoxazolylene group, a triazolylene group, a tetrazolylene group, an oxadiazolylene group, a triazinylene group, a dibenzofuranylene group, a dibenzothiophenylene group, a benzocarbazolylene group, or a dibenzocarbazolylene group, each substituted with at least one deuterium, —F, —Cl, —Br, —I, —CD 3 , —CD 2 H, —CDH 2 , —CF 3 , —CF 2 H, —CFH 2 , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a phenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-fluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, an ovalenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolylene group, a dibenzocarbazolylene group, or any combination thereof.

3 . The organic light-emitting device of claim 1 , wherein

Ar 1 to Ar 6 are each independently:

a phenyl group, a biphenyl group, a terphenyl group, a quaterphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, an ovalenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an indolocarbazolyl group, an indolodibenzofuranyl group, an indolodibenzothiophenyl group, an indolofluorenyl group, an indolospiro-fluorenyl group, an indolophenanthrenyl group, an indolotriphenylenyl group, an indoloazadibenzofuranyl group, or an indoloazadibenzothiophenyl group; or

a phenyl group, a biphenyl group, a terphenyl group, a quaterphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, an ovalenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an indolocarbazolyl group, an indolodibenzofuranyl group, an indolodibenzothiophenyl group, an indolofluorenyl group, an indolospiro-fluorenyl group, an indolophenanthrenyl group, an indolotriphenylenyl group, an indoloazadibenzofuranyl group, or an indoloazadibenzothiophenyl group, each substituted with at least one deuterium, —F, —Cl, —Br, —I, —CD 3 , —CD 2 H, —CDH 2 , —CF 3 , —CF 2 H, —CFH 2 , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a phenyl group, a biphenyl group, a terphenyl group, a quaterphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, an ovalenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an indolocarbazolyl group, an indolodibenzofuranyl group, an indolodibenzothiophenyl group, an indolofluorenyl group, an indolospiro-fluorenyl group, an indolophenanthrenyl group, an indolotriphenylenyl group, an indoloazadibenzofuranyl group, an indoloazadibenzothiophenyl group, or any combination thereof.

4 . The organic light-emitting device of claim 1 , wherein

R 1 to R 3 are each independently:

hydrogen, deuterium, —F, —Cl, —Br, —I, a cyano group, a C 1 -C 20 alkyl group, or a C 1 -C 20 alkoxy group; or

a C 1 -C 20 alkyl group or a C 1 -C 20 alkoxy group, each substituted with at least one deuterium, —F, —Cl, —Br, —I, a cyano group, a C 1 -C 20 alkyl group, C 1 -C 20 alkoxy group, or any combination thereof.

5 . The organic light-emitting device of claim 1 , wherein

A 1 , A 2 , A 3 , A 4 , A 5 , and A 6 are each independently a benzene group, a naphthalene group, an anthracene group, a thiophene group, a furan group, a pyrrole group, an indole group, an indene group, a benzosilole group, a benzothiophene group, a benzofuran group, a carbazole group, a fluorene group, a dibenzosilole group, a dibenzothiophene group, a dibenzofuran group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, a quinoline group, an isoquinoline group, a quinoxaline group, a quinazoline group, a phenanthroline group, a pyrazole group, an imidazole group, an oxazole group, an isoxazole group, a thiazole group, an isothiazole group, an oxadiazole group, a thiadiazole group, a benzopyrazole group, a benzimidazole group, a benzoxazole group, a benzothiazole group, a benzoxadiazole group, or a benzothiadiazole group.

6 . The organic light-emitting device of claim 1 , wherein

Ar 11 , Ar 12 , and Ar 14 to Ar 17 are each independently:

a phenyl group, a biphenyl group, a terphenyl group, a quaterphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, an ovalenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, or a group represented by Formula a; or

a phenyl group, a biphenyl group, a terphenyl group, a quaterphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, an ovalenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, or a group represented by Formula a, each substituted with at least one deuterium, —F, —Cl, —Br, —I, —CD 3 , —CD 2 H, —CDH 2 , —CF 3 , —CF 2 H, —CFH 2 , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a phenyl group, a biphenyl group, a terphenyl group, a quaterphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, an ovalenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group —N(Q 11 )(Q 12 ), or any combination thereof,

each of Ar 14 and Ar 15 is not an indolocarbazole group, and each of Ar 16 and Ar 17 is not a naphthalene group at the same time, and

Q 11 and Q 12 are each independently a phenyl group, a biphenyl group, a terphenyl group, or a naphthyl group:

wherein, in Formula a,

R 4 to R 6 are each independently:

hydrogen, deuterium, —F, —Cl, —Br, —I, a cyano group, a C 1 -C 20 alkyl group, or a C 1 -C 20 alkoxy group; or

a C 1 -C 20 alkyl group or a C 1 -C 20 alkoxy group, each substituted with at least one deuterium, —F, —Cl, —Br, —I, a cyano group, a C 1 -C 20 alkyl group, a C 1 -C 20 alkoxy group, or any combination thereof,

b4 is an integer from 0 to 4,

b5 is an integer from 0 to 4,

b6 is an integer from 0 to 3, and

“*” indicates a binding site to a neighboring atom.

7 . The organic light-emitting device of claim 1 , wherein

Ar 13 is:

a phenyl group, a biphenyl group, a terphenyl group, a quaterphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, or an ovalenyl group;

a phenyl group, a biphenyl group, a terphenyl group, a quaterphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, or an ovalenyl group, each substituted with at least one deuterium, —F, —Cl, —Br, —I, —CD 3 , —CD 2 H, —CDH 2 , —CF 3 , —CF 2 H, —CFH 2 , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a phenyl group, a biphenyl group, a terphenyl group, a quaterphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, an ovalenyl group, or any combination thereof.

8 . The organic light-emitting device of claim 1 , wherein

R 11 to R 24 are each independently:

hydrogen, deuterium, —F, —Cl, —Br, —I, a cyano group, a C 1 -C 20 alkyl group, or a C 1 -C 20 alkoxy group;

a C 1 -C 20 alkyl group or a C 1 -C 20 alkoxy group, each substituted with at least one deuterium, —F, —Cl, —Br, —I, a cyano group, or any combination thereof,

a phenyl group, a biphenyl group, a terphenyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, or a dibenzocarbazolyl group; or

a phenyl group, a biphenyl group, a terphenyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, or a dibenzocarbazolyl group, each substituted with at least one a C 1 -C 20 alkyl group, a C 1 -C 20 alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, a fluorenyl group, a spiro-fluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, or any combination thereof, that are each substituted with at least one deuterium, —F, —Cl, —Br, —I, a cyano group, or any combination thereof.

9 . The organic light-emitting device of claim 1 , wherein

Formula 1-1 is represented by Formula 1-1(1),

Formula 1-2 is represented by Formula 1-2(1),

Formula 1-4 is represented by one of Formulae 1-4(1), 1-4(2), and 1-4(3):

wherein, in Formula 1-1(1), L 1a , L 1b , and L 1c are understood by referring to the description presented in connection with Li of claim 1 , and Ar 1a , Ar 1b , and Ar 1c are understood by referring to the description presented in connection with Ar 1 of claim 1 , and

in Formula 1-2(1), L 2a and L 2b are understood by referring to the description presented in connection with L 2 of claim 1 , Ar 2a and Ar 2b are understood by referring to the description presented in connection with Ar 2 of claim 1 , and R 2a , R 2b , R 2c , and R 2d are understood by referring to the description presented in connection with R 2 of claim 1 ,

in Formula 1-4(1) to 1-4(3), L 6a and L 6b are understood by referring to the description presented in connection with L 6 of claim 1 , Ar 6a and Ar 6b are understood by referring to the description presented in connection with Ar 6 of claim 1 and R 3a to R 3j are understood by referring to the description presented in connection with R 3 of claim 1 .

10 . The organic light-emitting device of claim 1 , wherein

the first compound comprises at least one of the following compounds:

11 . The organic light-emitting device of claim 1 , wherein

Formula 2-1 is represented by Formula 2-1(1),

Formula 2-2 is represented by Formula 2-2(1),

Formula 2-3 is represented by one of Formulae 2-3(1) to 2-3(3),

Formula 2-4 is represented by one of Formulae 2-4(1) to 2-4(3):

wherein, in Formulae 2-3(1) to 2-3(3), R 20a and R 20b are understood by referring to the description presented in connection with R 20 of claim 1 , and

in Formulae 2-4(1) to 2-4(3), R 23a and R 23b are understood by referring to the description presented in connection with R 23 of claim 1 .

12 . The organic light-emitting device of claim 1 , wherein

the second compound comprises at least one of the following compounds:

13 . The organic light-emitting device of claim 1 , wherein

the third compound comprises at least one of the following compounds:

14 . The organic light-emitting device of claim 1 , wherein

the first compound comprises at least one compound represented by Formula 1-1 or 1-4,

the second compound comprises at least one compound represented by Formula 2-1 or 2-4, and

the third compound comprises at least one compound represented by Formula 3-2:

wherein, in Formula 3-2,

X 21 is O or S,

L 23 to L 24 are each independently a substituted or unsubstituted C 6 -C 30 arylene group,

c23 and c24 are each independently 1, 2, or 3,

Ar 23 and Ar 24 are each independently hydrogen or a substituted or unsubstituted C 6 -C 30 aryl group,

R 34 and R 35 are each independently hydrogen, deuterium, —F, —Cl, —Br, —I, a cyano group, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, or a substituted or unsubstituted C 1 -C 60 alkoxy group, and

b34 and b35 are each independently an integer from 0 to 3.

15 . The organic light-emitting device of claim 1 , wherein

the first compound comprises at least one compound represented by Formula 1-1,

the second compound comprises at least one compound represented by Formula 2-1, and

the third compound comprises at least one compound represented by Formula 3-1:

wherein, in Formula 3-1,

L 21 to L 22 are each independently a substituted or unsubstituted C 6 -C 30 arylene group,

c21 and c22 are each independently 1, 2, or 3,

Ar 21 and Ar 22 are each independently hydrogen or a substituted or unsubstituted C 6 -C 30 aryl group, wherein each of Ar 21 and Ar 22 is not hydrogen at the same time,

R 31 to R 33 are each independently hydrogen, deuterium, —F, —Cl, —Br, —I, a cyano group, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, or a substituted or unsubstituted C 1 -C 60 alkoxy group,

b31 and b32 are each independently an integer from 0 to 3, and

b33 is an integer from 0 to 4.

16 . The organic light-emitting device of claim 1 , wherein

the emission layer further comprises a fluorescent dopant, a phosphorescent dopant, or a combination thereof.

17 . An apparatus comprising the organic light-emitting device of claim 1 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 24, 2019
From: NUMATA, MASAKI; KINOSHITA, MASARU; ITO, MITSUNORI; SOTOYAMA, WATARU
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 051362/0646 →
Priority Claims (2)
JP 2018-248433 · Dec 28, 2018 · national
KR 10-2019-0109515 · Sep 4, 2019 · national
Continuity (1)
Related Publication 20200212314A1 · Jul 2, 2020
References Cited (162)
US 6013982A · Thompson et al. · 2000 [cited by applicant]
US 6087196A · Sturm et al. · 2000 [cited by applicant]
US 6294398B1 · Kim et al. · 2001 [cited by applicant]
US 6337102B1 · Forrest et al. · 2002 [cited by applicant]
US 6468819B1 · Kim et al. · 2002 [cited by applicant]
US 6720090B2 · Young et al. · 2004 [cited by applicant]
US 6780529B2 · Kimura · 2004 [cited by applicant]
US 6790538B2 · Naito · 2004 [cited by applicant]
US 6800379B2 · Taguchi · 2004 [cited by applicant]
US 6803124B2 · Taguchi · 2004 [cited by applicant]
US 6824891B2 · Okada et al. · 2004 [cited by applicant]
US 6881973B2 · Nii · 2005 [cited by applicant]
US 6897913B2 · Tsuboyama et al. · 2005 [cited by applicant]
US 6905784B2 · Seo · 2005 [cited by applicant]
US 7001676B2 · Igarashi et al. · 2006 [cited by applicant]
US 7223483B2 · Shirane et al. · 2007 [cited by applicant]
US 8743031B2 · Hashimoto et al. · 2014 [cited by applicant]
US 9142791B2 · Adamovich et al. · 2015 [cited by applicant]
US 9190620B2 · Zeng et al. · 2015 [cited by applicant]
US 9680111B2 · Feldman et al. · 2017 [cited by applicant]
US 10199577B2 · Park et al. · 2019 [cited by applicant]
US 10593895B2 · Shitagaki et al. · 2020 [cited by applicant]
US 11008280B2 · Mun · 2021 [cited by examiner]
US 20010033135A1 · Duggal · 2001 [cited by examiner]
US 20020034659A1 · Nishi et al. · 2002 [cited by applicant]
US 20040209115A1 · Thompson et al. · 2004 [cited by applicant]
US 20040209116A1 · Ren et al. · 2004 [cited by applicant]
US 20070257600A1 · Matsuura · 2007 [cited by examiner]
US 20080074038A1 · Kim et al. · 2008 [cited by applicant]
US 20100237334A1 · Ma · 2010 [cited by examiner]
US 20110084599A1 · Brooks · 2011 [cited by examiner]
US 20110291080A1 · Schmid et al. · 2011 [cited by applicant]
US 20120211736A1 · Kim · 2012 [cited by examiner]
US 20130009139A1 · Ohsawa et al. · 2013 [cited by applicant]
US 20130056720A1 · Kim · 2013 [cited by examiner]
US 20130341599A1 · Xia et al. · 2013 [cited by applicant]
US 20140070196A1 · Kim et al. · 2014 [cited by applicant]
US 20140374728A1 · Adamovich · 2014 [cited by examiner]
US 20150249221A1 · Zeng et al. · 2015 [cited by applicant]
US 20150318510A1 · Ito et al. · 2015 [cited by applicant]
US 20150349268A1 · Zeng et al. · 2015 [cited by applicant]
US 20160093808A1 · Adamovich et al. · 2016 [cited by applicant]
US 20160233436A1 · Zeng et al. · 2016 [cited by applicant]
US 20160315259A1 · Fennimore et al. · 2016 [cited by applicant]
US 20170012207A1 · Seo et al. · 2017 [cited by applicant]
US 20170047527A1 · Lee · 2017 [cited by examiner]
US 20170092873A1 · Kang et al. · 2017 [cited by applicant]
US 20170098778A1 · Oh · 2017 [cited by examiner]
US 20170117487A1 · Kawakami et al. · 2017 [cited by applicant]
US 20170162796A1 · Jeong · 2017 [cited by examiner]
US 20170200920A1 · Nishimura et al. · 2017 [cited by applicant]
US 20170309829A1 · Jung et al. · 2017 [cited by applicant]
US 20170331048A1 · Cho · 2017 [cited by examiner]
US 20170338432A1 · Adamovich · 2017 [cited by examiner]
US 20180019411A1 · Otsuki et al. · 2018 [cited by applicant]
US 20180083195A1 · Lim · 2018 [cited by examiner]
US 20180138420A1 · Tada et al. · 2018 [cited by applicant]
US 20180138422A1 · Cha · 2018 [cited by examiner]
US 20190214570A1 · Inayama et al. · 2019 [cited by applicant]
US 20200207732A1 · Numata et al. · 2020 [cited by applicant]
US 20200266357A1 · Lui · 2020 [cited by examiner]
US 20210050547A1 · Li et al. · 2021 [cited by applicant]
US 20210226130A1 · Park · 2021 [cited by examiner]
CN 103563117A · 2014 [cited by applicant]
CN 106318379A · 2017 [cited by applicant]
EP 2966706A2 · 2016 [cited by applicant]
EP 3244466A1 · 2017 [cited by applicant]
JP 2001257076A · 2001 [cited by applicant]
JP 2002260861A · 2001 [cited by applicant]
JP 2001313179A · 2001 [cited by applicant]
JP 2001357977A · 2001 [cited by applicant]
JP 2002008860A · 2002 [cited by applicant]
JP 2002015871A · 2002 [cited by applicant]
JP 2002043056A · 2002 [cited by applicant]
JP 200275645A · 2002 [cited by applicant]
JP 2002105445A · 2002 [cited by applicant]
JP 2002141173A · 2002 [cited by applicant]
JP 2002203683A · 2002 [cited by applicant]
JP 2002231453A · 2002 [cited by applicant]
JP 2002234888A · 2002 [cited by applicant]
JP 2002255934A · 2002 [cited by applicant]
JP 2002280183A · 2002 [cited by applicant]
JP 2002299060A · 2002 [cited by applicant]
JP 2002302516A · 2002 [cited by applicant]
JP 2002305083A · 2002 [cited by applicant]
JP 2002305084A · 2002 [cited by applicant]
JP 2002308837A · 2002 [cited by applicant]
JP 2002308855A · 2002 [cited by applicant]
JP 2002319491A · 2002 [cited by applicant]
JP 2002334786A · 2002 [cited by applicant]
JP 2002334787A · 2002 [cited by applicant]
JP 2002334788A · 2002 [cited by applicant]
JP 2002334789A · 2002 [cited by applicant]
JP 2002338579A · 2002 [cited by applicant]
JP 2002343568A · 2002 [cited by applicant]
JP 2002352957A · 2002 [cited by applicant]
JP 2002363227A · 2002 [cited by applicant]
JP 200327048A · 2003 [cited by applicant]
JP 2003003165A · 2003 [cited by applicant]
JP 2012033784A · 2012 [cited by applicant]
JP 2012508258A · 2012 [cited by applicant]
JP 2012186461A · 2012 [cited by applicant]
JP 2013033958A · 2013 [cited by applicant]
JP 2014509067A · 2014 [cited by applicant]
JP 2014519707A · 2014 [cited by applicant]
JP 5729957B2 · 2015 [cited by applicant]
JP 6763309B2 · 2015 [cited by applicant]
JP 6286033B2 · 2016 [cited by applicant]
JP 2017022378A · 2017 [cited by applicant]
JP 2017081909A · 2017 [cited by applicant]
JP 2017195373A · 2017 [cited by applicant]
JP 2018009078A · 2018 [cited by applicant]
JP 2019119723A · 2019 [cited by applicant]
KR 1020080028212A · 2008 [cited by applicant]
KR 1020160031073A · 2016 [cited by applicant]
KR 1020160050614A · 2016 [cited by applicant]
KR 20170037276A · 2017 [cited by applicant]
KR 1020170096860A · 2017 [cited by applicant]
WO 2011159872A1 · 2011 [cited by applicant]
WO 2012133644A1 · 2012 [cited by applicant]
WO 2013112557A1 · 2013 [cited by applicant]
WO 12160859A1 · 2014 [cited by applicant]
WO WO2015009102A1 · 2015 [cited by examiner]
WO 2016194604A1 · 2016 [cited by applicant]
WO 2017092495A1 · 2017 [cited by applicant]
Kim et al., machine translation of WO-2015009102-A1 (2015) pp. 1-16. (Year: 2015). [cited by examiner]
Extended European search report issued by the European Patent Office on May 26, 2020 in the examination of the European Patent Application No. 19220143.2, which corresponds to the U.S. application above. [cited by applicant]
Extended European search report issued by the European Patent Office on Mar. 16, 2020 in the examination of the European Patent Application No. 19218571.8, which corresponds to the U.S. Application above. [cited by applicant]
English Abstract of JP 2001-257076. [cited by applicant]
English Abstract of JP 2001-313179. [cited by applicant]
English Abstract of JP 2001-357977. [cited by applicant]
English Abstract of JP 2002-008860. [cited by applicant]
English Abstract of JP 2002-015871. [cited by applicant]
English Abstract of JP 2002-203683. [cited by applicant]
English Abstract of JP 2002-231453. [cited by applicant]
English Abstract of JP 2002-234888. [cited by applicant]
English Abstract of JP 2002-255934. [cited by applicant]
English Abstract of JP 2002-299060. [cited by applicant]
English Abstract of JP 2002-302516. [cited by applicant]
English Abstract of JP 2002-305083. [cited by applicant]
English Abstract of JP 2002-308837. [cited by applicant]
English Abstract of JP 2002-308855. [cited by applicant]
English Abstract of JP 2002-334786. [cited by applicant]
English Abstract of JP 2002-334787. [cited by applicant]
English Abstract of JP 2002-334788. [cited by applicant]
English Abstract of JP 2002-334789. [cited by applicant]
English Abstract of JP 2002-343568. [cited by applicant]
English Abstract of JP 2002-352957. [cited by applicant]
English Abstract of JP2016524333. [cited by applicant]
English Abstract of KR 10-2016-0031073. [cited by applicant]
English Abstract of KR 10-2016-0050614. [cited by applicant]
English Abtract of JPWO12160859. [cited by applicant]
English translation of Office Action dated Oct. 4, 2022, issued in corresponding JP Patent Application No. 2018-248433, 13 pp. [cited by applicant]
Office Action dated Oct. 4, 2022, issued in corresponding JP Patent Application No. 2018-248433, 14 pp. [cited by applicant]
Su, Shi-Jian et al., RGB Phosphorescent Organic Light-Emitting Diode s by Using Host Materials with Heterocyclic Cores: Effect of Nitrogen At om Orientations, Chem. Mater., 2010, vol. 23, pp. 274-284 (document indicatin… [cited by applicant]
English Translation of Office Action issued in corresponding JP Patent Application No. 2018-248443, dated Dec. 27, 2022, 7 pp. [cited by applicant]
Office Action issued in corresponding JP Patent Application No. 2018-248443, dated Dec. 27, 2022, 5 pp. [cited by applicant]
English Translation of Office Action dated Mar. 7, 2023 issued in corresponding JP Patent Application No. 2018-248433, 14 pp. [cited by applicant]
Office Action dated Mar. 7, 2023 issued in corresponding JP Patent Application No. 2018-248433, 12 pp. [cited by applicant]
English Translation of Office Action dated May 31, 2024, issued in corresponding KR Patent Application No. 10-2019-0109515, 13 pp. [cited by applicant]
Office Action dated May 31, 2024, issued in corresponding KR Patent Application No. 10-2019-0109515, 14 pp. [cited by applicant]
Chinese Office Action for Chinese Patent Application No. 201911426185.1 dated Feb. 29, 2024. [cited by applicant]