Apparatus and method for sensing display panel

An apparatus for sensing a display panel, wherein the display panel comprises a plurality of scan lines, a plurality of data lines and a plurality of pixel circuits, a data input terminal and a gate terminal of a corresponding pixel circuit of the pixel circuits are coupled to a corresponding data line of the data lines and a corresponding scan line of the scan lines respectively, and the apparatus comprises:

• a source driving circuit configured to be coupled to the data lines to drive the pixel circuits according to a display period comprising a plurality of frame periods, wherein each of the frame periods comprises a plurality of display data periods, wherein the display period further comprises a plurality of test data periods periodically arranged in the display period and each existing between two of the frame periods;
• and
• a sensing circuit, configured to be coupled to the pixel circuits, and configured to sense characteristics of the pixel circuits in the test data periods of the display period;
• wherein in each of the test data periods within the display period, the source driving circuit is configured to provide test data to the pixel circuits, and the sensing circuit is configured to sense an electrical characteristic of the corresponding pixel circuit;
• and
• wherein in each of the display data periods, the source driving circuit is configured to provide display data to the pixel circuits , and the sensing circuit is not configured to sense the corresponding pixel circuit.