Organic light emitting device, and display apparatus, photoelectric conversion apparatus, electronic apparatus, illumination apparatus, and moving object including the same

US11980044B2 · kind B2 · utility

Assignee

• Canon Kabushiki Kaisha · JP

Inventors

• Naoki Yamada · Tokyo, JP
• Satoru Shiobara · Yachiyo, JP
• Itaru Takaya · Chiba, JP
• Jun Kamatani · Tokyo, JP

Key dates

• Filing date: Apr 28, 2020
• Grant date: May 7, 2024
• Expiry date: Jul 1, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2101/40

Abstract

An organic light emitting device including, in sequence, a first electrode, a first charge transport layer, a second charge transport layer in contact with the first charge transport layer, a light emitting layer in contact with the second charge transport layer, and a second electrode, wherein the first charge transport layer includes a first material and a second material, the second charge transport layer includes the second material and a third material, and the light emitting layer includes the third material and a fourth material.