In-cell multi-touch display panel system
US9690424B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2016 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Oct 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04104
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An in-cell multi-touch display panel system includes a multi-touch LCD panel and a touch display control subsystem. The multi-touch LCD panel has a TFT layer, a detection electrode layer, and a common-voltage and touch-driving layer. The detection electrode layer has M first conductor lines for performing touch detection by sampling touch detection from the M first conductor lines. The common-voltage and touch-driving layer has N second conductor lines for receiving common voltage in display and touch-driving signal in touch detection. In the detection electrode layer, there are pluralities of detection electrode areas in the intersections of first conductor lines and second conductor lines. Each detection electrode area is connected to a first conductor line by a touch-control transistor. The M×N touch-control transistors are divided in to N sets corresponding to N second conductor lines, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.