Patent ID: 9746967
Date: 2017-08-29
CPC Classifications: G06F

Claim:
1. A method for performing a scan at a touch panel, wherein the touch panel comprises a first set of conductive lines and a second set of conductive lines, the method comprising: performing a first scan at the touch panel, the touch panel being in a first configuration wherein the first set of conductive lines are configured as drive lines and the second set of conductive lines are configured as sense lines; during the first scan, capturing a first set of first signals indicating a touch at the touch panel and a first set of second signals indicating a negative pixel effect at the touch panel; switching the touch panel from the first configuration to a second configuration; performing a second scan at the touch panel, the touch panel being in the second configuration wherein the second set of conductive lines are configured as drive lines and the first set of conductive lines are configured as sense lines; during the second scan, capturing a second set of first signals indicating the touch at the touch panel and a second set of second signals indicating the negative pixel effect at the touch panel; and generating a modified touch signal based on the first and second set of first signals and the first and second set of second signals to compensate for the negative pixel effect.