Lg Display Co., Ltd.

Young Woo Jo

Ki Yong Kim

Hyun Woo Jang

Jae Kyu Park

Jae Hun Jun

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.

Display device having touch sensor and method for driving the same

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.

A display device is disclosed which includes: a first substrate; a second substrate disposed to face the first substrate; a plurality of touch electrodes formed in a fixed area of the first substrate; touch lines connected to the touch electrodes; and a driver disposed in an edge of the first substrate and configured to apply a voltage to the touch lines. The touch lines connected to the touch electrodes have the same resistance value.

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Paju-si, South Korea

Young Woo Jo