Passivation covered light emitting unit stack
US11282981B2 · kind B2 · utility
5Cited by
72References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2018 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Dec 5, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/32
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A light emitting diode pixel for a display including a substrate, a first LED sub-unit disposed on the substrate, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on at least one of the first and second LED sub-units, and vias formed in the substrate, in which each of the first to third LED sub-units comprises a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, and each of the vias is electrically connected to at least one of the first, second, and third LED sub-units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.