Touch-control method for liquid display device and touch-controllable liquid crystal display device
US9235301B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2013 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Jan 1, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2354/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch-control method for a liquid crystal display device, includes: switching from a display mode to a touch-control mode; determining whether there is a touch made by an object or whether there is an input made by an active pen; in the case where there is the input made by the active pen, starting an active pen detecting sub-mode in which an X-axis direction common electrode of the liquid crystal display device is defined as an X-axis direction receiving electrode, and a Y-axis direction common electrode or a signal electrode is defined as a Y-axis direction receiving electrode; and determining a position or an action of the active pen according to amplitudes of signals of the X-axis direction receiving electrode and the Y-axis direction receiving electrode. A touch-controllable liquid crystal display device is further provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.