Touch screen panel for sensing touch using TFT photodetectors integrated thereon
US11094724B2 · kind B2 · utility
4Cited by
0References
15Claims
0Family size
Inventor
Key dates
| Filing date | Mar 19, 2020 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Mar 19, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/60
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch screen panel using a thin film transistor (TFT) photodetector includes a touch panel including at least one unit pattern for sensing light reflected by a touch by using a TFT photodetector including an active layer formed of amorphous silicon or polycrystalline silicon on an amorphous transparent material, and a controller configured to scan the at least one unit pattern and read touch coordinates as a result of the scanning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.