Organic light emitting diode and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-9349964-B2
Application number	US-201113335165-A
Country	US
Kind code	B2
Filing date	Dec 22, 2011
Priority date	Dec 24, 2010
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

The present invention relates to a heat emitting body comprising a transparent board, a bus bar, a power supply connected to the bus bar, a heat emitting pattern line provided on the transparent board and electrically connected to the bus bar, and a non-heat emitting pattern line provided on the transparent board and not electrically connected to the bus bar, and a method for manufacturing the same.

First claim

The invention claimed is:

1. An organic light emitting diode, comprising:
an anode;
a cathode; and
an organic material layer of one or more layers disposed between the anode and the cathode,
wherein the organic material layer comprises a light emitting layer,
an organic material layer comprising a compound having a fluorescent light emitting efficiency equal to or greater than the fluorescent light emitting efficiency of NPB (N, N′-Bis-(1-naphthalenyl)-N, N′-bis-phenyl-(1, 1′-biphenyl)-4, 4′-diamine) positioned between the anode and the light emitting layer, and
an organic material layer comprising a compound represented by the following Formula [cp8] positioned between the cathode and the light emitting layer, and
wherein the compound having a fluorescent light emitting efficiency equal to or greater than the fluorescent light emitting efficiency of NPB is a compound represented by the following Formula [cp5]:

2. The organic light emitting diode according to claim 1 , wherein the organic material layer comprising a compound having a fluorescent light emitting efficiency equal to or greater than the fluorescent light emitting efficiency of NPB is in contact with the light emitting layer.

3. The organic light emitting diode according to claim 1 , wherein the organic material layer comprising a compound represented by Formula [cp8] is an electron transporting layer, an electron injection layer, or a layer which simultaneously transports and injects electrons.

4. The organic light emitting diode according to claim 1 , wherein the organic material layer comprising a compound represented by Formula [cp8] further comprises a reducing dopant.

5. The organic light emitting diode according to claim 1 , wherein the organic material layer comprising a compound having a fluorescent light emitting efficiency equal to or greater than the fluorescent light emitting efficiency of NPB further comprises a p-type dopant.

6. The organic light emitting diode according to claim 1 , wherein the light emitting layer comprises a phosphorescent material.

7. The organic light emitting diode of claim 1 , wherein the organic material layer comprising a compound having a fluorescent light emitting efficiency equal to or greater than the fluorescent light emitting efficiency of NPB is a hole injection layer, a hole transporting layer, or a layer which simultaneously injects and transports holes.

Assignees

• Chun Min-Seung
• Hong Sung-Kil
• Kim Yun-Hwan
• Park Tae-Yoon
• Lg Chemical Ltd

Inventors

• Chun Min-Seung
• Hong Sung-Kil
• Kim Yun-Hwan
• Park Tae-Yoon

Classifications

• C09K2211/1011

  Condensed systems · CPC title

• C09K2211/1029

  containing one nitrogen atom as the heteroatom · CPC title

• C09K2211/1044

  containing two nitrogen atoms as heteroatoms · CPC title

• H05B33/14

  characterised by the chemical or physical composition or the arrangement of the electroluminescent material {, or by the simultaneous addition of the electroluminescent material in or onto the light source} · CPC title

• C09K11/06 Primary

  containing organic luminescent materials · CPC title