Semiconductor device, display device and method of operating the same
US10768741B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2018 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | Jun 21, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0219
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor device configured to drive a display panel in a display period, and perform touch sensing on the display panel in a touch sensing period after the display period. In a last horizontal sync period of the display period, the semiconductor device drives a first source line with a drive voltage of a first polarity, and a second source line with a drive voltage of a second polarity different from the first polarity. is the semiconductor is configured to output a first dummy pulse having first polarity and a voltage level based on the second display data to the first source line in a transition period between the display period and the touch sensing period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.