Hybrid sensing touchscreen apparatus capable of light touch sensing and physical touch sensing and method of driving the same
US9256317B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2013 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Mar 20, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2017/9606
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touchscreen apparatus includes pixel rows including pixels configured to display an image, a touch-sensing unit configured to sense a physical touch, light-sensing unit configured to sense incident light, a first sensor gate line configured to provide a first gate signal for activating the light-sensing unit and resetting the touch-sensing unit, a second sensor gate line configured to provide a second gate signal for activating the touch-sensing unit and resetting the light-sensing unit, and a reset circuit configured to provide a common voltage to the pixels based on the operation of at least one of the light-sensing unit and the touch-sensing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.