Light emitting diode array containing a multilayer bus electrode and method of making the same
US10627673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Apr 6, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light emitting device includes a backplane, an array of light emitting diodes attached to a front side of the backplane, a dielectric matrix layer located on the front side of the backplane and laterally surrounding the array of light emitting diodes, a transparent conductive layer contacting a front side surface of light emitting diodes within the array of light emitting diodes, and a patterned bus electrode layer electrically shorted to the transparent conductive layer and including an array of openings therein. Each light emitting diode within the array of light emitting diodes is located within an area of a respective opening through the patterned bus electrode layer. The patterned bus electrode layer can include at least one light-absorptive electrically conductive layer providing light absorption. Alternatively or additionally, the patterned bus electrode layer can include a reflective metal layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.