US 12,468,425 B2
Driving circuit for providing control signals to touch display panel
Chia-Lun Hsu, Hsinchu (TW)
Assigned to NOVATEK Microelectronics Corp., Hsinchu (TW)
Filed by NOVATEK Microelectronics Corp., Hsinchu (TW)
Filed on Jul. 22, 2024, as Appl. No. 18/779,079.
Application 18/779,079 is a continuation in part of application No. 18/067,719, filed on Dec. 18, 2022, granted, now 12,086,339.
Claims priority of provisional application 63/368,063, filed on Jul. 10, 2022.
Prior Publication US 2024/0370121 A1, Nov. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/041 (2006.01)
CPC G06F 3/04184 (2019.05) [G06F 3/0412 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A driving circuit, for driving a touch display panel, the driving circuit comprising: a controller, configured to provide a first modulation signal, a second modulation signal, a first control signal and a second control signal; a first switch, directly coupled between a power integrated circuit and a first node, the first node being configured for providing a low gate output signal to the touch display panel, the first switch being turned on or turned off by the first control signal; a first capacitor, coupled between the controller and the first node; a second switch, connected between the power integrated circuit and a second node, the second node being different than the first node, and the second node being configured for providing a high gate output signal to the touch display panel, the second switch being turned on or turned off by the second control signal; and a second capacitor, coupled between the controller and the second node.