Light-emitting element, organic compound, light-emitting device, electronic device, and lighting device

Patent metadata

Field	Value
Publication number	US-12102000-B2
Application number	US-201716473372-A
Country	US
Kind code	B2
Filing date	Dec 15, 2017
Priority date	Dec 28, 2016
Publication date	Sep 24, 2024
Grant date	Sep 24, 2024

Abstract

A novel compound and a light-emitting element with high emission efficiency and a long lifetime are provided. The novel compound includes a benzofuropyrazine skeleton or a benzothienopyrazine skeleton, and each of a benzene ring and a pyrazine ring in the benzofuropyrazine skeleton or the benzothienopyrazine skeleton independently includes a substituent with a total number of carbon atoms of 6 to 100 inclusive. The light-emitting element includes the compound.

First claim

The invention claimed is:

1. An organic compound represented by General Formula (G4):

wherein:
X represents oxygen or sulfur;
each of Ht 1 and Ht 2 independently represents a substituted or unsubstituted heteroaromatic ring including a dibenzofuran ring or a dibenzothiophene ring.

2. The organic compound according to claim 1 ,
wherein the organic compound is represented by General Formula (G5):

wherein:
each of Z 1 and Z 2 independently represents oxygen or sulfur.

3. The organic compound according to claim 1 ,
wherein the organic compound is represented by Structural Formula (100) or Structural Formula (101):

4. A light-emitting element comprising the organic compound according to claim 1 .

5. A display device comprising:
the light-emitting element according to claim 4 ; and
at least one of a color filter and a transistor.

6. An electronic device comprising:
the display device according to claim 5 ; and
at least one of a housing and a touch sensor.

7. A lighting device comprising:
the light-emitting element according to claim 4 ; and
at least one of a housing and a touch sensor.

Assignees

• Semiconductor Energy Lab

Inventors

• Yamaguchi Tomoya
• Yoshizumi Hideko
• Kido Hiromitsu
• Takahashi Tatsuyoshi
• Seo Satoshi

Classifications

• H10K2101/90

  Multiple hosts in the emissive layer · CPC title

• H10K2101/30

  Highest occupied molecular orbital [HOMO], lowest unoccupied molecular orbital [LUMO] or Fermi energy values · CPC title

• 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