Touch sensing structure, and electronic device using same
US11231820B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 13, 2021 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Apr 13, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/96079
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A touch sensing structure with improved illumination includes a first substrate, a decoration layer, a light-shielding layer, a light-emitting element, a pressure-sensitive element, a first reflective layer, and a second reflective layer. The pressure-sensitive element is farther away than the light-emitting element from the first substrate. The decoration layer shows a function icon. The light-emitting element emits light to illuminate the function icon. When the first substrate is pressed, the touch sensing structure determines a magnitude of the pressing force by detecting a change in the resistance or voltage value of the pressure-sensitive element. If the pressing force reaches a specific value, the function identified by the function icon is executed, otherwise no function is executed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.