Device and method for touch sensing on display panel

A display device, comprising:

• a liquid crystal display (LCD) panel including a plurality of pixel circuits and a plurality of sense electrodes;
• display driver circuitry configured to drive the plurality of pixel circuits;
• and
• touch controller circuitry configured to:
• obtain capacitance detection data depending on capacitances of the plurality of sense electrodes, wherein the capacitance detection data comprises:
• first capacitance detection data for a current touch sensing frame, and second capacitance detection data for a former touch sensing frame;
• select, responsive to a display state of the LCD panel during the current touch sensing frame, the former touch sensing frame;
• and
• generate touch sensing data for the current touch sensing frame, based on the first capacitance detection data and on the second capacitance detection data for the selected former touch sensing frame.

A method, comprising:

• driving a plurality of pixel circuits of a liquid crystal display (LCD) panel;
• obtaining capacitance detection data depending on capacitances of a plurality of sense electrodes of the LCD panel, wherein the capacitance detection data comprises:
• first capacitance detection data for a current touch sensing frame, and second capacitance detection data for a former touch sensing frame;
• selecting, response to a display state of the LCD panel during the current touch sensing frame, the former touch sensing frame;
• and
• generating touch sensing data for the current touch sensing frame, based on the first capacitance detection data and on the second capacitance detection data for the selected former touch sensing frame.