Method for eliminating/reducing image sticking of in-cell touch display and mobile device using the same
US10481708B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2016 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Nov 25, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0257
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for eliminating image sticking of an in-cell touch display and a mobile device using the same are provided. The method comprises the steps of: providing at least a first common electrode and a second common electrode in the in-cell touch display to perform touch sensing, wherein the first common electrode is electrically connected to a first pin of a touch control circuit through a first charge/discharge route, the second common electrode is electrically connected to a second pin of the touch control circuit through a second charge/discharge route; and in a time except for display time, controlling the first pin and the second pin so that a voltage of the first pin is higher than a voltage of the second pin for at least a first preset period, and then controlling the first pin and the second pin so that a voltage of the second pin is higher than the voltage of the first pin for at least the first preset period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.