Liquid crystal display device with improved integrated touch panel and driving method thereof
US9218779B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2012 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Nov 28, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided are a Liquid Crystal Display (LCD) device and a driving method thereof. A method of driving a liquid crystal display (LCD) device includes: transferring a pull-up signal to a corresponding gate line formed in an in-cell touch panel during an image output period in one frame and, after the pull-up signal is outputted during the image output period, turning on a first pull-down transistor or a second pull-down transistor to transfer a pull-down signal to the gate line; and detecting a touch by using a touch electrode formed in the in-cell touch panel while the stage turns on the first pull-down transistor and the second pull-down transistor to transfer the pull-down signal to the corresponding gate line, during a touch sensing period in the one frame, wherein, the stages sequentially transfer the pull-up signal to the respective gate lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.