Organic light emitting display including optical assistant transporting layer and method of manufacturing the same
US10263045B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2016 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Oct 25, 2036 |
Classification
- Technology area (CPC —)General
Abstract
Disclosed is an organic light emitting display device. The organic light emitting display device includes a substrate in which at least three pixel areas are defined, a first electrode and a hole transporting layer formed on the substrate, a light-emitting material layer formed on the hole transporting layer in each of the pixel areas, and an electron transporting layer and a second electrode formed on the light-emitting material layer. An optical assistant transporting layer is formed on the light-emitting material layer at a position corresponding to one of the pixel areas, and formed of an electron transporting material. Accordingly, provided can be a high-resolution organic light emitting display device that solves an imbalance of electric charges and has an excellent light output efficiency and an enhanced service life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.