Organic light emitting diode and organic light emitting display including the same

US10468617B2 · kind B2 · utility

Assignee

• LG Display Co., Ltd. · KR

Inventors

• Sangbeom Kim · Paju-si, KR
• Jeongdae Seo · Incheon, KR

Key dates

• Filing date: Dec 12, 2018
• Grant date: Nov 5, 2019
• Expiry date: Dec 12, 2038

Classification

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

Abstract

Disclosed is an organic light emitting diode and an organic light emitting display including the same, where the organic light emitting diode includes: a first electrode; a light emitting stack disposed on the first electrode; and a second electrode disposed on the light emitting stack, where the light emitting stack includes a hole transport layer and a blue light emitting layer such that the hole transport layer and the blue light emitting layer are sequentially stacked on the first electrode, where the blue light emitting layer includes a blue host material and a blue fluorescent dopant material, and the hole transport layer includes a hole transport layer material. The blue fluorescent dopant material has a higher LUMO energy level than the blue host material and the blue fluorescent dopant material has a higher HOMO energy level than the blue host material.