Display device
US11711942B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2020 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Nov 9, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/40
Abstract
A display device may include a first electrode, a pixel defining layer disposed on the first electrode, the pixel defining layer having a pixel opening that exposes the first electrode, an emission layer disposed in the pixel opening and on the first electrode, a second electrode disposed on the emission layer, a first refractive layer disposed on the second electrode and being an organic refractive layer, a second refractive layer disposed on the first refractive layer and being an organic refractive layer, the second refractive layer having a first opening that overlaps the pixel opening, and a third refractive layer disposed on the second refractive layer, the third refractive layer having a second refractive index greater than a first refractive index of the second refractive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.