Optical touch display panel
US9298316B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Mar 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0412
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical touch display panel includes a plurality of resetting signal lines, a plurality of scanning signal lines, and a plurality of optical sensing touch units. Each optical sensing touch unit includes an optical sensing element and a storage capacitor. The optical sensing elements in a first direction are connected electrically to different scanning signal lines, and are configured to respectively receive a control signal. The optical sensing elements in a second direction includes a plurality of groups, and the optical sensing elements of each group are connected electrically to different resetting signal lines, so that each group receives a reset signal. Each optical sensing element outputs a charging signal corresponding to the reset signal to the storage capacitor according to the control signal, so as to reset a voltage of the storage capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.