Touch display device
US8704802B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2011 |
| Grant date | Apr 22, 2014 |
| Priority date | — |
| Expiry date | Apr 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0428
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch display device includes a device housing, a display module, and an optical touch module. The display module is located within the device housing and has a display region and a peripheral region surrounding the display region. The optical touch module is configured on the display module. Besides, the optical touch module includes a light guide element, a light source, and a photo sensor. The light guide element has a top surface and includes a light guide portion and an outer frame portion. The light guide portion is located on the display region. The outer frame portion extends from an edge of the light guide portion and is connected to the device housing. The light source supplies light to the light guide portion. The photo sensor receives the light from the light guide portion. The outer frame portion covers the light source and the photo sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.