Touch display device
US12299229B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Aug 7, 2023 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Aug 7, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04107
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch display device includes a shielding electrode disposed between a touch electrode and a signal line for driving the display. The shielding electrode enables a generation of a compensation voltage based on a feedback signal received from the shielding electrode. The compensation voltage compensates for noise on a voltage that is applied to the shielding electrode due to direct or indirect coupling between the signal line and the touch electrode. Thus, noise is, reduced in a touch sensing signal according to display driving, and improving the performance of touch sensing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.