Display device comprising stack of insulating refractive layers
US11818916B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2022 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Nov 21, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/879
Abstract
Provided is a display device including a display panel including light emitting regions and a non-light emitting region adjacent to the light emitting regions, a first insulation layer disposed on the display panel, the first insulation layer having a first refractive index, and having first openings defined in a region overlapping the light emitting regions, a second insulation layer covering the display panel and the first insulation layer and having a second refractive index greater than the first refractive index of the fist insulation layer, a third insulation layer disposed on the second insulation layer, the third insulation layer having the first refractive index, and having second openings defined in a region overlapping the light emitting regions, and a fourth insulation layer covering the second insulation layer and the third insulation layer and the fourth insulation layer having the second refractive index.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.