ORGANIC LIGHT-EMITTING DIODE

• US 20140326960A1
• Filed: 09/12/2013
• Published: 11/06/2014
• Est. Priority Date: 05/03/2013
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kim, Myeong-Suk, Kim, Sung-Wook, Kim, Jae-Hong
• Granted Patent: US 9,825,234 B2
• Time in Patent Office: Days
• US Class Current: 257/40
• CPC Class Codes: H10K 2101/10 Triplet emission
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/654 comprising only nitrogen as heteroatom H10K85/652 takes precedence
• CPC Class Codes: H10K 85/6572 comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole

Abstract

An organic light-emitting diode (OLED) includes a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode. The organic layer includes a compound represented by one of Formula 1 or Formula 2, and a metallic complex.

Claims

1. An organic light-emitting diode (OLED) comprising:

a first electrode;

a second electrode; and

an organic layer between the first electrode and the second electrode, wherein the organic layer includes a metallic complex and a compound represented by Formula 1 or 2;

3. The OLED of claim 1, wherein at least two adjacent R groups selected from R₁ to R₉ combine to form a ring.

4. The OLED of claim 1, wherein n is an integer of 2 or 3.

5. The OLED of claim 1, wherein R₂ and R₇ are independently selected from moieties represented by Formulas 2a to 2c:

6. The OLED of claim 1, wherein R₄ and R₅ are each independently a moiety represented by one of Formulas 3a to 3d:

7. The OLED of claim 1, wherein R₁, R₃, R₆, R₈, and R₉ are each independently a hydrogen atom or a deuterium atom.

8. The OLED of claim 1, wherein L is a moiety represented by one of Formulas 4a and 4b:

9. The OLED of claim 1, wherein the compound of Formula 1 or 2 is one of Compounds 1 through 58:

10. The OLED of claim 1, wherein the metallic complex is one of:

11. The OLED of claim 1, wherein the organic layer is an emission layer.

12. The OLED of claim 1, wherein the compound of Formula 1 or 2 is a host.

13. The OLED of claim 1, wherein the metallic complex is a dopant.

14. The OLED of claim 1, further comprising an emission layer, a hole injection layer, a hole transport layer, or a functional layer having both hole injection and hole transport capabilities,

wherein any one of a red layer, a green layer, a blue layer, and a white layer of the emission layer comprises a phosphorescent compound.

15. The OLED of claim 14, wherein the hole injection layer, the hole transport layer, or the functional layer having both hole injection and hole transport capabilities comprises a charge-generating material

16. The OLED of claim 15, wherein the charge-generating material is a p-dopant.

17. The OLED of claim 16, wherein the p-dopant is a quinone derivative, a metallic oxide, or a cyano group-containing compound.

20. A flat panel display device comprising the OLED of claim 1,

wherein the first electrode of the OLED is electrically connected to a source electrode or a drain electrode of a thin film transistor (TFT).

2. The OLED of claim 2, wherein the metallic complex comprises a metal selected from the group consisting of Ir, Pt, Os, or Pd.

18. The OLED of claim 18, wherein the organic layer comprises an electron transport layer, and the electron transport layer comprises an electron transport organic compound and the metallic complex.

19. The OLED of claim 18, wherein the metallic complex is a lithium quinolate (LiQ) compound or Compound 203:

Compound 203