Touch sensitive projection screen
US9442600B2 · kind B2 · utility
0Cited by
23References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2005 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Jul 8, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/042
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical device and a projection system incorporating same is disclosed. The optical device includes a light management element. The light management element includes an electrically conductive light absorber that is disposed in a display area for controlling a viewing angle of light transmitted through the display area. The conductive light absorber is configured to generate a signal in response to a touch in the display area. The signal is capable of being used to determine information related to the touch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.