Organic electroluminescence device and polycyclic compound for organic electroluminescence device

Patent metadata

Field	Value
Publication number	US-12433150-B2
Application number	US-202016922862-A
Country	US
Kind code	B2
Filing date	Jul 7, 2020
Priority date	Jul 17, 2019
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

The present disclosure relates to an organic electroluminescence device in which a polycyclic compound represented by Formula 1 below is included in at least one functional layer of a plurality of functional layers, and to the polycyclic compound represented by Formula 1 below:

First claim

What is claimed is:

1. An organic electroluminescence device comprising:
a first electrode;
a second electrode on the first electrode; and
a plurality of functional layers between the first electrode and the second electrode,
the first electrode and the second electrode each independently comprise at least one selected from Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/Al, Mo, Ti, In, Sn, and Zn, or a compound of two or more selected from them, a mixture of two or more selected from them, or oxides thereof,
wherein at least one functional layer of the plurality of functional layers comprises a polycyclic compound, the polycyclic compound being at least one selected from compounds 28 to 38, 40, 43 to 45, 47 to 53, 55, 58 to 60, 62 to 70, and 138 to 140:

2. The organic electroluminescence device of claim 1 , wherein: the plurality of functional layers comprise:
a hole transport region on the first electrode;
an emission layer on the hole transport region; and
an electron transport region on the emission layer, and
the emission layer comprises the polycyclic compound.

3. The organic electroluminescence device of claim 2 , wherein:
the emission layer comprises a host and a phosphorescent dopant, and
the host comprises the polycyclic compound.

4. The organic electroluminescence device of claim 2 , wherein the emission layer is to emit blue light.

5. A polycyclic compound being at least one selected from compounds 28 to 38, 40, 43 to 45, 47 to 53, 55, 58 to 60, 62 to 70, and 138 to 140:

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Hyeongmin
• Ahn Heechoon
• Um Hyunah
• Lee Yeseul
• Im Yirang
• Ko Soo-Byung
• Kim Jongwoo

Classifications

• H10K2101/10

  Triplet emission · CPC title

• H10K50/11

  characterised by the electroluminescent [EL] layers · CPC title

• H10K85/6576

  comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene · CPC title

• H10K85/6574

  comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes · CPC title

• H10K85/6572

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