Display device
US10665820B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2018 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | May 30, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/311
Abstract
A display device for improving an outcoupling efficiency of emitted light is disclosed. The display device includes a substrate, a subpixel arranged on the substrate, the subpixel including an organic light emitting diode having an emission portion that emits light, a first passivation layer disposed on the organic light emitting diode, at least one lens positioned on the first passivation layer, the at least one lens disposed in a position corresponding to the emission portion of the organic light emitting diode, a cover layer covering the at least one lens, and a second passivation layer disposed on the cover layer. A refractive index of the at least one lens is greater than a refractive index of the cover layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.