Light emitting diode (LED) stack for a display
US10892297B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2018 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Nov 22, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/00
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A light emitting diode (LED) stack for a display includes a first LED sub-unit having a first surface and a second surface, a second LED sub-unit disposed on the first surface of the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a reflective electrode disposed on the second side of the second LED sub-unit and forming ohmic contact with the first LED sub-unit, and an ohmic electrode interposed between the first LED sub-unit and the second LED sub-unit and forming ohmic contact with the first LED sub-unit, in which the second LED sub-unit and the third LED sub-unit are configured to transmit light generated from the first LED sub-unit, and the third LED sub-unit is configured to transmit light generated from the second LED sub-unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.