Optical touch panel and detection method thereof
US10042475B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 2015 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Sep 28, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04104
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical touch panel and a detection method thereof are provided. The detection method includes following steps. A main panel is sensed by a first optical sensor and a second optical sensor. If the first optical sensor and the second optical sensor both sense two objects approaching the main panel, and a quantity of at least one first reflection signal sensed by the first optical sensor and a quantity of at least one second reflection signal sensed by the second sensor are inconsistent, the at least one first reflection signal or the at least one second reflection signal that is not paired at a current time point is removed according to a pairing relationship between the at least one first reflection signal and the at least one second reflection signal at a previous time point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.