Voltage compensation method, voltage compensation device and touch display module
US11353987B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 27, 2018 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Nov 29, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/022
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A voltage compensation method includes: within a touch time period, multiplexing common electrode blocks as touch electrodes, and scanning the common electrode blocks in at least one column sequentially to detect a capacitance of each scanned common electrode block; within a time period between detecting the capacitance of each scanned common electrode block and starting an Nth display time period after the touch time period, calculating power consumption for each scanned common electrode block in accordance with the capacitance thereof, acquiring a corresponding common electrode voltage compensation value based on the power consumption, and adding the common electrode voltage compensation value to a reference common electrode voltage to acquire a compensated common electrode voltage applied to each scanned common electrode block; and within the Nth display time period, adjusting a common electrode voltage applied to each scanned common electrode block into the compensated common electrode voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.