Organic light-emitting device having multi-layered electron blocking layer and P-doped layer
US10297777B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2017 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Sep 8, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
Abstract
An organic light-emitting device includes a first electrode layer; a hole injection layer on the first electrode layer; a hole transport layer on the hole injection layer; an electron blocking layer on the hole transport layer, and including a plurality of layers; a light-emitting layer on the electron blocking layer; an electron transport layer on the light-emitting layer; an electron injection layer on the electron transport layer; and a second electrode layer on the electron transport layer, wherein the electron blocking layer has a highest occupied molecular orbital value which is lower than a highest occupied molecular orbital value of the hole transport layer, and the light-emitting layer has a HOMO value which is lower than a highest occupied molecular orbital value of the electron blocking layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.