公开(公告)号：US12182361B2

公开(公告)日：2024-12-31

申请号：US18512793

申请日：2023-11-17

Applicant: LG Display Co., Ltd.

Inventor： Hyun Woo Jang ,  Ki Yong Kim ,  Jae Kyu Park ,  Young Woo Jo

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device having a touch sensor can include a display panel including a plurality of touch electrodes, and a readout integrated circuit (IC). Also, the readout IC is configured to apply a touch driving signal to the plurality of touch electrodes and amplify charges from the plurality touch electrodes according to an amplifier reset signal to generate an amplifier output voltage, and differentially adjust a toggle timing of the amplifier reset signal based on positions of the plurality of touch electrodes to control a level of the amplifier output voltage.

公开(公告)号：US11861108B2

公开(公告)日：2024-01-02

申请号：US17466818

申请日：2021-09-03

Applicant: LG Display Co., Ltd.

Inventor： Hyun Woo Jang ,  Ki Yong Kim ,  Jae Kyu Park ,  Young Woo Jo

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/041662

Abstract: A display device having a touch sensor of the present disclosure includes 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 adjust at least one of a toggle timing of the amplifier reset signal and a voltage amplitude of the touch driving signal so as to differentially control a level of the amplifier output voltage depending on positions of the touch electrodes.