Optical touch screen systems using reflected light
US9213443B2 · kind B2 · utility
23Cited by
77References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2010 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Jun 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0428
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch screen system, including a near-infrared transparent screen including a plurality of reflective elements embedded therein, a circuit board including circuitry for controlled selective activation of electronic components connected thereto, at least one light source connected to the circuit board, for emitting light, and at least one light detector connected to the circuit board, for detecting light emitted by the at least one light source and reflected by the reflective elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.