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

Claim 15:
16. The display device having a touch sensor according to claim 15, wherein the pre-amplifier is configured to store charges flowing from the touch electrodes at the first position in the feedback capacitor from a rising timing of the touch driving signal to the first on-start timing of the amplifier reset signal, and supply the stored voltage to the integrator as a first amplifier output voltage with respect to the touch electrodes at the first position,
the integrator is configured to accumulate the first amplifier output voltage multiple times to generate a first integrator output voltage,
the pre-amplifier is configured to store charges flowing from the touch electrodes at the second position in the feedback capacitor from the rising timing of the touch driving signal to the second on-start timing of the amplifier reset signal, and supply the stored voltage to the integrator as a second amplifier output voltage with respect to the touch electrodes at the second position,
the integrator is configured to accumulate the second amplifier output voltage multiple times to generate a second integrator output voltage, and
the level of the second amplifier output voltage is lower than the level of the first amplifier output voltage.