Organic light-emitting device
US10090483B2 · kind B2 · utility
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Key dates
| Filing date | Jul 28, 2017 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | Jul 28, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
Abstract
An organic light-emitting device is provided, including: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer; the emission layer includes a first compound, a second compound, a third compound, and a fourth compound; and a lowest excited triplet energy level (HT1) of the first compound, a lowest excited triplet energy level (DFDT1) of the third compound, and a lowest excited triplet energy level (FDT1) of the fourth compound satisfy Inequation 1: HT1>DFDT1>FDT1. <Inequation 1>
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