Light sensor circuit and driving method thereof and touch screen panel having the same
US8334853B2 · kind B2 · utility
4Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2010 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Dec 8, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A light sensor circuit, includes a light receiving element coupled to a first power supply, a capacitor coupled between the light receiving element and a second power supply, a first transistor including a gate electrode coupled to a first electrode of the capacitor, and a second transistor including a gate electrode coupled to a selection signal line, wherein the first transistor is coupled between the selection signal line and a first electrode of the second transistor, and the second transistor is coupled between a second electrode of the first transistor and an output signal line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.