Organic light emitting display device

• US 10,020,453 B2
• Filed: 09/10/2015
• Issued: 07/10/2018
• Est. Priority Date: 11/26/2014
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Kim, DoHan, Kim, JungKeun, Kang, Hyeseung, Yun, Min, Yoon, SeungHee
• Primary Examiner(s): Clark, Gregory D
• Application Number:
  US14/849,804
• Publication Number:
  US 20160149142A1
• Time in Patent Office: 1,034 Days
• Field of Search: None
• CPC Class Codes: C07D 487/06 Peri-condensed systems
• CPC Class Codes: C09K 11/025 non-luminescent particle coatings or suspension media
• CPC Class Codes: H10K 2101/10 Triplet emission
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/6572 comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
• CPC Class Codes: H10K 85/6576 comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene

Abstract

An organic light emitting display device and an organic layer are disclosed. The organic light emitting display device includes an anode, an organic layer over the anode, and a cathode over the organic layer. In one aspect, the organic layer may include an indolocarbazole compound. In another aspect, the organic layer may include a compound by linking a carbazole derivative and a carbazole compound to an aryl group or a heteroaryl group.

Claims

1. An organic light emitting display device comprising:

an anode;

an organic layer over the anode; and

a cathode over the organic layer,

wherein the organic layer includes an indolocarbazole compound represented by the following Formula 1;

2. The organic light emitting display device of claim 1, wherein the indolocarbazole compound of Formula 1 includes one among the following compounds:

3. The organic light emitting display device of claim 1, wherein the organic layer includes a light emitting layer.

4. The organic light emitting display device of claim 3, wherein the light emitting layer includes the indolocarbazole compound of Formula 1.

5. The organic light emitting display device of claim 1, wherein the organic layer includes at least one among a hole transport layer, an electron blocking layer, a hole blocking layer, and an electron transport layer, and at least one among the hole transport layer, the electron blocking layer, the hole blocking layer, and the electron transport layer includes the indolocarbazole compound of Formula 1.

6. The organic light emitting display device of claim 1, wherein L is a substituted phenyl group.

7. The organic light emitting display device of claim 1, wherein L is an unsubstituted phenyl group.