Methods and apparatus for sensing touch events on a display
US8994695B2 · kind B2 · utility
3Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2013 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Apr 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0421
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus provide for a touch sensitive display, in which a transparent layer is disposed over a display layer; light is directed to propagate into and/or through the transparent layer; scattered light is measured in response to an object touching a surface the transparent layer and disturbing the propagation of the light therethrough; and one or more positions at which the object touches the transparent layer are computed based on signals obtained by the step of measuring the scattered light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.