Patent ID: 11861108
Assignee: LG DISPLAY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display device having a touch sensor, comprising:
a display panel including a plurality of touch electrodes;
a touch sensing circuit configured to apply a touch driving signal to the touch electrodes, and amplify charges flowing from the touch electrodes based on an amplifier reset signal so as to generate an amplifier output voltage; and
an amplifier output control circuit configured to differentially adjust a toggle timing of the amplifier reset signal depending on positions of the touch electrodes or differentially adjust a voltage amplitude of the touch driving signal depending on the positions of the touch electrodes to differentially control a level of the amplifier output voltage depending on the positions of the touch electrodes,
wherein the amplifier output control circuit is configured to differentially adjust an on-start timing of the amplifier reset signal and an on duty of the amplifier reset signal depending on the positions of the touch electrodes.