Organic light emitting device and manufacturing method thereof
US10505133B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 5, 2017 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Jul 3, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/00
Abstract
An organic light emitting device with a double-doped system, which in particular emits blue light, as well as a method for manufacturing such an organic light emitting device are disclosed. The organic light emitting device includes a substrate; a first electrode on the substrate; a second electrode opposite to the first electrode; and an organic light emitting layer between the first electrode and the second electrode. The organic light emitting layer includes a first dopant and a second dopant. With an organic light emitting layer including a first dopant and a second dopant, this disclosure achieves an organic light emitting device with a double-doped system, wherein different dopants emitting light of different colors are mixed into a same light emitting layer. This further improves a service life and light emitting efficiency of the light emitting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.