Display device with integrated touch screen

摘要

A display device with integrated touch screen is provided. The display device may include a panel, a display driver IC, and a touch IC. The panel may include a plurality of driving electrodes and sensing electrodes. The display driver IC may apply a driving pulse to the driving electrodes and receive a plurality of sensing signals from the sensing electrodes when the panel operates in a touch driving mode, and, when the panel operates in a display driving mode, the display driver IC may apply a common voltage to the driving electrodes and sensing electrodes. The touch IC may generate the driving pulse and apply the driving pulse to the display driver IC, and may receive the sensing signals from the display driver IC to determine whether there is a touch. The touch IC may include a sensing unit sensing whether there is a touch.

主权项

1. A display device with an integrated touch screen, comprising:
a panel having a plurality of driving electrodes and sensing electrodes; a display driver IC configured to apply a driving pulse to the plurality of driving electrodes and receive a plurality of sensing signals from the sensing electrodes when the panel operates in a touch driving mode, and configured to apply a common voltage to the plurality of driving electrodes and sensing electrodes when the panel operates in a display driving mode; and a touch IC configured to generate the driving pulse and apply the driving pulse to the display driver IC, receive the sensing signals from the display driver IC, and determine whether there is a touch, wherein the touch IC includes a sensing unit configured to sense whether there is a touch by use of a touch sensing reference voltage applied to the sensing unit and having the same level as a minimum voltage of the driving pulse.