Free form touch device
US10732781B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2019 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Mar 31, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A free form touch device includes a substrate, a first switching device, a first touch electrode, a second switching device, and a second touch electrode. The first switching device includes a first channel layer, a first gate, a first source, and a first drain. An overlapping width of the first gate and the first channel layer is W1, and an overlapping length of the first gate and the first channel layer is L1. The first touch electrode is electrically connected with the first switching device. An area of the first touch electrode is A1. The second switching device includes a second channel layer, a second gate, a second source, and a second drain. An overlapping width of the second gate and the second channel layer is W2, and an overlapping length of the second gate and the second channel layer is L2, W1/L1>W2/L2. The second touch electrode is electrically connected with the second switching device. An area of the second touch electrode is A2, and A1>A2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.