Liquid crystal display (LCD) scanners
US8610970B1 · kind B1 · utility
3Cited by
13References
22Claims
0Family size
Inventor
Key dates
| Filing date | Aug 20, 2011 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Jan 26, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0089
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Scanners built in LCD devices, hence LCD scanners. Without affecting the display functions of an LCD device, an image sensing module is provided behind an LCD unit in the LCD device. By controlling the liquid crystals in the LCD unit, the reflected light from an object placed against the LCD device to be imaged is allowed to pass through and onto an image sensor in the image sensing module to generate an image of the object. This many LCD devices can readily provide scanning functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.