Organic light emitting diode display

Patent metadata

Field	Value
Publication number	US-2016197290-A1
Application number	US-201514755879-A
Country	US
Kind code	A1
Filing date	Jun 30, 2015
Priority date	Jan 7, 2015
Publication date	Jul 7, 2016
Grant date	—

Abstract

An organic light emitting display element according to an example embodiment includes: a first electrode, an emission layer positioned on the first electrode, and a second electrode positioned on the emission layer, in which the emission layer includes at least one of the compounds represented by the following Chemical Formulas 1 to 3.

First claim

What is claimed is:

1 . An organic light emitting display element, comprising:
a first electrode, an emission layer positioned on the first electrode, and a second electrode positioned on the emission layer, wherein the emission layer includes at least one of the compounds represented by the following Chemical Formulas 1 to 3:

wherein:
X and Y are each independently O, S, N, or Si,
A and B are optionally independently included and, when included, are each independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a hydroxy group, a nitro group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 30 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 4 to 30 carbon atoms, a substituted or unsubstituted condensed polycyclic group having 6 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, an amine group substituted by a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, an amine group substituted by a substituted or unsubstituted heteroaryl group having 4 to 30 carbon atoms, or an amine group substituted by a substituted or unsubstituted condensed polycyclic group having 6 to 30 carbon atoms, provided that at least one of R 1 to R 8 is an amine group substituted by a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, an amine group substituted by a substituted or unsubstituted heteroaryl group having 4 to 30 carbon atoms, or an amine group substituted by a substituted or unsubstituted condensed polycyclic group having 6 to 30 carbon atoms,
R 1 to R 8 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a hydroxy group, a nitro group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 30 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 4 to 30 carbon atoms, a substituted or unsubstituted condensed polycyclic group having 6 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, an amine group substituted by a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, an amine group substituted by a substituted or unsubstituted heteroaryl group having 4 to 30 carbon atoms, or an amine group substituted by a substituted or unsubstituted condensed polycyclic group having 6 to 30 carbon atoms, provided that at least one of R 1 to R 8 is an amine group substituted by a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, an amine group substituted by a substituted or unsubstituted heteroaryl group having 4 to 30 carbon atoms, or an amine group substituted by a substituted or unsubstituted condensed polycyclic group having 6 to 30 carbon atoms, and
L is a ligand.

2 . The organic light emitting display element as claimed in claim 1 , wherein the ligand includes one or more of a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms and a substituted or unsubstituted aryl group having 6 to 30 carbon atoms.

3 . The organic light emitting display element as claimed in claim 1 , wherein X and Y form a cycle.

4 . The organic light emitting display element as claimed in claim 1 , wherein the compound represented by Chemical Formulas 1 to 3 is a blue dopant.

5 . An organic light emitting diode display, comprising:
an insulation substrate, a thin film transistor positioned on the insulation substrate, and the organic light emitting display element as claimed in claim 1 , wherein the first electrode is connected to the thin film transistor.

6 . The organic light emitting diode display as claimed in claim 5 , wherein the ligand includes one or more of a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms and a substituted or unsubstituted aryl group having 6 to 30 carbon atoms.

7 . The organic light emitting diode display as claimed in claim 5 , wherein X and Y form a cycle.

8 . The organic light emitting diode display as claimed in claim 5 , wherein the compound represented by Chemical Formulas 1 to 3 is a blue dopant.

9 . The organic light emitting diode display as claimed in claim 5 , further comprising a hole injection layer and a hole transport layer positioned on the first electrode.

10 . The organic light emitting diode display as claimed in claim 9 , wherein the hole transport layer includes a compound represented by the following Chemical Formulas 4 and 5:

wherein:
Ar 11 , Ar 12 , Ar 21 , and Ar 22 are each independently a substituted or unsubstituted C6-C60 arylene group,
e and f are each independently an integer of 0 to 5,
R 31 to R 38 , R 41 to R 49 , and R 71 and R 72 are each independently hydrogen, deuterium, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxyl group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid or a salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C60 cycloalkyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, or a substituted or unsubstituted C6-C60 arylthio group, and
R 39 is any one of a phenyl group, a naphthyl group, an anthryl group, a biphenyl group, a pyridyl group, deuterium, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxyl group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid or a salt thereof, a substituted or unsubstituted C1-C20 alkyl group, and a substituted or unsubstituted C1-C20 alkoxy group.

11 . The organic light emitting diode display as claimed in claim 5 , further comprising an electron injection layer and an electron transport layer positioned on the emission electrode.

12 . An organic light emitting diode display, comprising:
an organic light emitting diode, the organic light emitting diode including an emission layer that contains a compound represented by the following Chemical Formula A:

wherein, in Chemical Formula A,
rings a, b, and c are aromatic,
P and Q of ring b are N or CH, one of P and Q being N and the other of P and Q being CH,
R and S of ring d are NR′ or CH 2 , one of R and S being NR′ and the other of R and S being CH 2 ,
R′ is a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted condensed polycyclic group having 6 to 30 carbon atoms, an amine group substituted by a substituted or unsubstituted heteroaryl group having 4 to 30 carbon atoms, or an amine group substituted by a substituted or unsubstituted conden

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Myeong Suk
• Shin Dae Yup
• Kim Sung Wook
• Cho Hwan Hee

Classifications

• H01L51/0058

  Electricity · mapped topic

• H01L27/3262

  Electricity · mapped topic

• C09K11/06 Primary

  containing organic luminescent materials · CPC title

• C09K11/025

  non-luminescent particle coatings or suspension media · CPC title

• H01L51/0072 Primary

  Electricity · mapped topic