Organic compound and light emitting diode and organic light emitting diode display device using the same

Patent metadata

Field	Value
Publication number	US-10937984-B2
Application number	US-201715803227-A
Country	US
Kind code	B2
Filing date	Nov 3, 2017
Priority date	Dec 12, 2016
Publication date	Mar 2, 2021
Grant date	Mar 2, 2021

Abstract

The present disclosure relates to an organic compound, a light emitting diode and an organic light emitting diode display device using the same. The organic compound is represented by a following chemical formula 1.

First claim

What is claimed is:

1. An organic compound selected from:

2. A light emitting diode, comprising:
first and second electrodes facing each other;
a first emitting part between the first and second electrodes and including a first emitting material layer and an electron transporting layer;
a second emitting part between the first emitting part and the second electrode and including a second emitting material layer; and
a first charge generation layer between the first and second emitting parts,
wherein at least one of the electron transporting layer and the first charge generation layer includes an organic compound represented by the following chemical formula 1,
wherein the first charge generation layer includes an N type charge generation layer and a P type charge generation layer, and the N type charge generation layer includes the organic compound:

wherein, each of R 1 to R 6 is independently one of hydrogen, deuterium, tritium, a non-substituted alkyl group of C1 to C20, a substituted alkyl group of C1 to C20, a non-substituted alkoxy group of C1 to C20, a substituted alkoxy group of C1 to C20, a non-substituted aryl group of C5 to C60, a substituted aryl group of C5 to C60 and a non-substituted hetero aryl group of C4 to C60, and a substituted hetero aryl group of C4 to C60;
each of L 1 and L 2 is independently one of a non-substituted arylene group of C5 to C60, a substituted arylene group of C5 to C60, a non-substituted hetero arylene group of C5 to C60, and a substituted hetero arylene group of C5 to C60;
a is 1; and
each of Ar 1 and Ar 2 is independently one of a non-substituted aryl group of C5 to C60, a substituted aryl group of C5 to C60, a non-substituted hetero aryl group of C4 to C30, and a substituted hetero aryl group of C4 to C30;
with the proviso that when R 1 to R 6 are each hydrogen, L 1 is phenylene, L 2 is anthracenylene and Ar 1 is phenyl, then Ar 2 cannot be a naphthyl group.

3. The light emitting diode of claim 2 , wherein the N type charge generation layer includes one of an alkali metal and an alkali earth metal.

4. The light emitting diode of claim 2 , further comprising:
a third emitting part between the second emitting part and the second electrode; and
a second charge generation layer between the second emitting part and the third emitting part, wherein the second charge generation layer includes the organic compound.

5. An organic light emitting diode display device, comprising:
a substrate;
a light emitting diode on the substrate; and
a driving element between the substrate and the light emitting diode,
wherein the light emitting diode comprises:
first and second electrodes facing each other;
a first emitting part between the first and second electrodes and including a first emitting material layer and an electron transporting layer;
a second emitting part between the first emitting part and the second electrode and including a second emitting material layer; and
a first charge generation layer between the first and second emitting parts,
wherein at least one of the electron transporting layer and the first charge generation layer includes an organic compound selected from:

Assignees

• Lg Display Co Ltd

Inventors

• Shin Ji-Cheol
• Joo Sung-Hoon
• Yoo Seon-Keun
• Yoon Seung-Hee

Classifications

• H10K85/654

  comprising only nitrogen as heteroatom (H10K85/652 takes precedence) · CPC title

• H10K85/6572 Primary

  comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole · CPC title

• H10K50/131

  with spacer layers between the electroluminescent layers · CPC title

• H10K50/19

  Tandem OLEDs · CPC title

• H10K59/1213

  the pixel elements being TFTs · CPC title