Touch indicating cover and electronic device using the same
US11656713B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2021 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Nov 24, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/96079
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch indicating cover includes a light-guide plastic piece, a printed circuit layer, an ink layer, a passivation layer, and a light-emitting component. The light-guide plastic piece has a first surface and a second surface opposite to each other, wherein the second surface of the light-guide plastic piece comprises a plurality of microstructures. The printed circuit layer is disposed on the first surface of the light-guide plastic piece. The ink layer is disposed on the printed circuit layer and the first surface of the light-guide plastic piece, wherein the ink layer comprises a light-emitting pattern region corresponding to the microstructures. The passivation film is disposed on the ink layer. The light-emitting component is embedded in the first surface of the light-guide plastic piece and connected to the printed circuit layer, wherein the light-emitting component is disposed adjacent the light-emitting pattern region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.