Organic electroluminescent device
US-2015325796-A1 · Nov 12, 2015 · US
US9893290B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9893290-B2 |
| Application number | US-201314106931-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 16, 2013 |
| Priority date | Jul 1, 2013 |
| Publication date | Feb 13, 2018 |
| Grant date | Feb 13, 2018 |
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A composition includes a first host compound including moieties represented by Chemical Formulae 1 to 3 that are sequentially bonded with each other, and a second host compound including at least one carbazole group with a substituent having hole characteristics,
Opening claim text (preview).
What is claimed is: 1. A composition, comprising: a first host compound including moieties represented by the following Chemical Formulae 1 to 3 that are sequentially bonded with each other, and a second host compound represented by the following Chemical Formula 4, wherein, in the Chemical Formulae 1 to 3, X 1 is *—Y 1 -ET, X 2 is *—Y 2 —Ar 1 , ET is a substituent for accepting an electron when an electric field is applied, Ar 1 is a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof, Y 1 and Y 2 are each independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to C30 heteroarylene group, or a combination thereof, L is a substituted or unsubstituted C2 or C3 alkenylene group or a substituted or unsubstituted C6 to C20 arylene group, and R 1 to R 4 are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof, wherein, in the Chemical Formula 4, Ar 2 and Ar 3 are each independently an unsubstituted C6 to C30 aryl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, or a combination thereof, provided that, when Ar 2 or Ar 3 is a substituted group, the substituted group has hole characteristics, Y 3 and Y 4 are each independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to C30 heteroarylene group, or a combination thereof, and R 7 to R 11 are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof. 2. The composition as claimed in claim 1 , wherein the ET is represented by the Chemical Formula 1a: wherein, in the Chemical Formula 1a, each X is independently N or CR a , at least one of X is N, and R a is hydrogen, deuterium, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof. 3. The composition as claimed in claim 1 , wherein the ET is one of the substituents listed in the following Group 1: wherein, in the Group 1, R 5 and R 6 are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof. 4. The composition as claimed in claim 1 , wherein the X 1 is one of the substituents listed in the following Group 2: 5. The composition as claimed in claim 1 , wherein the moiety represented by the Chemical Formula 2 is represented by one of the following Chemical Formulae 2-1 to 2-3: 6. The composition as claimed in claim 1 , wherein the Ar 1 is a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted anthracenyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted benzofuranyl group, a substituted or unsubstituted benzothiophenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted dibenzofuranyl group, or a combination thereof. 7. The composition as claimed in claim 1 , wherein the X 2 is one of the substituents listed in the following Group 3: 8. The composition as claimed in claim 1 , wherein the first host compound is one of compounds listed in the following Group 4: wherein, in the Group 4, X 1 is *—Y 1 -ET, X 2 is *—Y 2 —Ar, ET is a substituent for accepting an electron when an electric field is applied, Ar 1 is a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof, and Y 1 and Y 2 are each independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to C30 heteroarylene group, or a combination thereof. 9. The composition as claimed in claim 1 , wherein Ar 2 and Ar 3 are each independently an unsubstituted phenyl group, an unsubstituted biphenyl group, an unsubstituted terphenyl group, an unsubstituted naphthyl group, an unsubstituted anthracenyl A group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, or a combination thereof. 10. The composition as claimed in claim 1 , wherein: Chemical Formula 4 is one of structures listed in the following Group 5, and the *—Y 3 —Ar 2 and *—Y 4 —Ar 3 in Chemical Formula 4 are each independently one of substituents listed in the following Group 3, 11. The composition as claimed in claim 1 , wherein the second host compound represented by Chemical Formula 4 is one of the compounds listed in the following Tables 12 to 21, wherein, in the Tabl
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