Current-driven display panel and panel display device adapted to touch sensing

A panel display device, comprising:

• a display driver configured to generate a data voltage, and to receive a sense current;
• and
• a display panel comprising:
• a sense line;
• and
• a plurality of pixel circuits comprising a touch sensing-adapted pixel circuit comprising:
• a hold capacitor configured to hold a voltage corresponding to a data voltage;
• a sense capacitor having a capacitance that varies responsive to contact of an object with the display panel in a vicinity of the touch sensing-adapted pixel circuit;
• a current-driven element;
• and
• a drive transistor configured to:
• supply a drive current to the current-driven element responsive to the data voltage;
• and
• supply the sense current to the sense line responsive to the capacitance.

A method, comprising:

• supplying, using a drive transistor of a pixel circuit of a display panel, a drive current to a current-driven element of the pixel circuit in responsive to a voltage held across a hold capacitor of the pixel circuit;
• and
• supplying, using the drive transistor, a sense current to a sense line responsive to a capacitance of a sense capacitor,
• wherein the capacitance varies responsive to contact of an object with the display panel in a vicinity of the pixel circuit.