Driving method and driver circuit for in-cell touch display panel
US10276118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2016 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Mar 3, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0233
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a driving method and driver circuit for in-cell touch display panel. The method comprises: Step 10: providing a GOA circuit, comprising a plurality of cascade GOA units; Step 20: controlling the n-th stage GOA unit to charge the n-th horizontal scan line of the touch display panel following a preset timing sequence; Step 30: dividing GOA units into first and second types of GOA units, with each first type GOA unit corresponding to a first horizontal scan line at which a next scanning starting after completing a TP scanning, and the remaining GOA units as second type GOA unit; Step 40: the size of first type GOA unit being greater than the circuit of second type GOA unit to provide a greater thrust to corresponding scan line than second type GOA unit. As such, the uneven display phenomenon of in-cell touch display panel is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.