Wiring substrate and display device including the same
US12274093B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2022 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Mar 16, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/12041
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A display device includes conductive layers including wires and conductive patterns in a display area and a pad area, a via layer on the conductive layers, a first electrode and a second electrode on the via layer in the display area and spaced apart from each other, a first insulating layer on the first electrode and the second electrode, light emitting elements on the first electrode and the second electrode spaced apart from each other on the first insulating layer, and a first connection electrode on the first electrode and electrically contacting the light emitting elements, and a second connection electrode on the second electrode and electrically contacting the light emitting elements, each of the conductive layers includes a first metal layer and a second metal layer on the first metal layer, and the second metal layer contains copper and has a grain size of about 155 nm or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.