US 12,411,577 B2
Driver integrated circuit for touch sensing and driving method thereof
Guan-Shiung Huang, Hsinchu County (TW); Hsin-Ting Chan, Taichung (TW); Ding-Teng Shih, Taoyuan (TW); and Ming-Han Lee, Hsinchu (TW)
Assigned to Novatek Microelectronics Corp., Hsinchu (TW)
Filed by Novatek Microelectronics Corp., Hsinchu (TW)
Filed on May 17, 2024, as Appl. No. 18/666,834.
Claims priority of application No. 113105683 (TW), filed on Feb. 19, 2024.
Prior Publication US 2025/0264957 A1, Aug. 21, 2025
Int. Cl. G06F 3/041 (2006.01)
CPC G06F 3/041661 (2019.05) 20 Claims
OG exemplary drawing
 
1. A driver integrated circuit for touch sensing, adapted for driving a touch panel with a touch sensor, wherein the driver integrated circuit comprises:
a touch sensing control circuit, coupled to an application processor, and configured to drive the touch panel to execute a first detection operation,
wherein the touch sensing control circuit receives a touch signal, the touch sensing control circuit drives the touch panel to execute a scanning operation,
wherein after executing the scanning operation, the touch sensing control circuit drives the touch panel to execute a second detection operation, wherein a sampling frequency of the second detection operation is higher than a sampling frequency of the first detection operation.