Method for manufacturing an optoelectronic device with self-aligning light confinement walls
US11489088B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2019 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Jul 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8514
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
There is described an optoelectronic device where each light-emitting diode has a wire-like shape. Spacing walls are formed so that the lateral sidewalls of each light-emitting diode are surrounded by at least one of the spacing walls. Light confinement walls directly cover the lateral sidewalls of the spacing walls by being in contact with the latter. The spacing walls have a convex-shaped outer face. At least one of the spacing walls has, over a lower portion, a thickness that increases when getting away from the substrate. They have, over an upper portion, a thickness that decreases at the level of the upper border of the light-emitting diode when getting away from the substrate. The light confinement walls have an inner face having a concave shape matching with the convex shape and directed towards the light-emitting diode for which it confines the light radiation thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.