Touch display panel
US11112921B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2019 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Aug 12, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04107
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch display panel includes a first sensing matrix and a second sensing matrix. The first sensing matrix includes a plurality of grid units and a first switch unit. The grid units are arranged in matrix, wherein each grid unit includes at least one first electrode. The first switch unit includes a plurality of switches, and the switches are disposed between adjacent grid units. Wherein, the control end of the switches is configured to receive a first controlling signal, and one end of each of the switches is configured to output a sensing signal. The second sensing matrix includes at least one second electrode, and is configured to receive a common signal. The second sensing matrix includes a plurality of opening units, and each opening unit overlaps with the open area of each pixel circuit in a vertical projection direction of the first substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.