Through-display wireless charging
US11784511B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2021 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Jun 16, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2200/1632
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A personal electronic device (e.g., a tablet computer) may be configured to wirelessly charge an accessory (e.g., a stylus) through a display face of the device. At least a portion of the display face may be transparent to facilitate display viewing. A wireless charging assembly disposed within the enclosure may include a core having one or more windings disposed thereon, which may be configured to generate a magnetic flux above the display face to couple to the accessory. The core may be a pot core, a modified pot core, or may have another shape, such as a PQ core. The one or more windings may be disposed on one or more posts of a pot core, or additionally or alternatively, may be disposed on another portion of the core. A metallic shield may be disposed about the wireless charging assembly, thereby surrounding multiple sides of the wireless charging assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.