Organic light emitting diode display including capping layer having optical thickness for improving optics
US11380734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2020 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Dec 31, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
Abstract
An OLED display including first, second, and third color pixels on a substrate, each including a first electrode, an organic emission layer, a second electrode, and a capping layer, in which the first color pixel emits green light, and each of the second and third color pixels emits a color of light other than green, the organic emission layer of the first color pixel includes first and second emission layers that emit light, the organic emission layer of the second or third color pixel includes a third emission layer that emit light, the second and third emission layers include both a host and a dopant, the first emission layer includes the host, but not any dopants therein, and the second emission layer is disposed on the first electrode, and the first emission layer is disposed on the second emission layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.