Phosphor coatings for micro light-emitting diode (LED) displays
US12342659B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2022 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Nov 27, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/851
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Aspects of the disclosure include light-emitting diodes (LEDs) formed without phosphor deformation during the lamination process. An exemplary method can include forming one or more LEDs on a backplane and forming a protective layer on the backplane. The protective layer can be patterned to define one or more trenches exposing sidewalls of a respective one LED of the one or more LEDs and a surface of the backplane. Each trench can be filled with a color-shifting coating. The method includes laminating the one or more LEDs, the backplane, the protective layer, and the color-shifting coating between one or more inner reinforcing layers and one or more outer layers to define a display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.