Alignment-free micro-display architecture
US12336357B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2021 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Apr 1, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/872
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Disclosed herein are a light source for a display system and methods of fabricating the light source. The light source includes a backplane wafer including a first bonding layer that includes an array of pixel contact pads in a first dielectric layer; a second bonding layer including an array of small metal contact pads in a second dielectric layer; and an array of mesa structures on the second bonding layer and configured to emit light. The second dielectric layer is bonded to the first dielectric layer such that each pixel contact pad of the array of pixel contact pads is in contact with two or more small metal contact pads that are electrically coupled to a same mesa structure of the array of mesa structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.