HIGH-SENSITIVITY MUTUAL-CAPACITANCE IN-CELL TOUCH DISPLAY PANEL DEVICE

摘要

A high-sensitivity mutual-capacitance in-cell touch display panel device includes plural receiving sensing electrodes, a display control circuit, a touch sensing control circuit, and a touch signal driving circuit. The display control circuit is powered by a first power source and connected to a first ground. The touch sensing control circuit is coupled to the plural receiving sensing electrodes. The touch sensing control circuit is powered by a second power source and connected to a second ground, wherein the first power source and the first ground are different from the second power source and the second ground. The touch signal driving circuit is connected to the touch sensing control circuit and a common voltage layer. The touch sensing control circuit applies a touch signal to the touch signal driving circuit to generate a transmitting signal for being applied to the common voltage layer.

主权项

1. A high-sensitivity mutual-capacitance in-cell touch display panel device, comprising:
a first substrate; a second substrate parallel to the first substrate; a display material layer configured between the first substrate and the second substrate; a common voltage layer disposed between the first substrate and the display material layer; a plurality of receiving sensing electrodes disposed between the first substrate and the common voltage layer; a display control circuit for controlling the high-sensitivity mutual-capacitance in-cell touch display panel device to display image, wherein the display control circuit is powered by a first power source and is connected to a first ground; a touch sensing control circuit coupled to the plurality of receiving sensing electrodes for receiving a touch sensing signal sensed by each receiving sensing electrode, wherein the touch sensing control circuit is powered by a second power source and is connected to a second ground; and a touch signal driving circuit connected to the touch sensing control circuit and the common voltage layer, wherein the first power source and the first ground are different from the second power source and the second ground and, in touch sensing detection, the touch sensing control circuit applies a touch signal to the touch signal driving circuit to generate a transmitting signal for being applied to the common voltage layer, and the plurality of receiving sensing electrodes receives the touch sensing signals.