Organic light-emitting device and display device
US10446612B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 3, 2017 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Nov 30, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
Abstract
The present application discloses an organic light-emitting device and a display device. The organic light-emitting device comprises an anode, a cathode, and a first blue light emitting layer, a second blue light emitting layer and a yellow light emitting layer laminated between the anode and the cathode, wherein the yellow light emitting layer is arranged between the cathode and the first blue light emitting layer, and the first blue light emitting layer is arranged between the yellow light emitting layer and the second blue light emitting layer; and the yellow light emitting layer comprises a phosphorescent material, one of the first blue light emitting layer and the second blue light emitting layer comprises a blue fluorescent material, and the other one comprises a blue thermally-activated delayed fluorescent material used as an auxiliary material between a host and a guest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.