Display with case electrically connected to ground
US10254896B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2017 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | May 4, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13338
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A display includes a touch sensor panel, a panel controller, a case, and a signal generation circuit. The touch sensor panel includes a touch sensor. The panel controller measures a capacitance of the touch sensor. The case accommodates the display, in which at least the touch sensor panel and the panel controller are disposed. The signal generation circuit is capable of applying an AC signal to a ground of the panel controller. The case is electrically connected to the ground of the panel controller. When the signal generation circuit applies the AD signal to the ground, the panel controller measures the capacitance of the touch sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.