Optical touch display apparatus
US9377886B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2010 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Jan 10, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0428
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical touch display apparatus including a backlight module, a display panel, and at least an optical detector is provided. The backlight module is capable of providing a visible beam and an invisible beam. The display panel is disposed at one side of the backlight module. A sensing space is located in front of the display panel, and the display panel is located between the backlight module and the sensing space. The visible beam and the invisible beam are capable of passing through the display panel and then being transmitted to the sensing space. The optical detector is disposed outside the display panel for sensing the invisible beam from the sensing space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.