Display panel, display test apparatus and method of testing display panel

A display panel comprising:

• an array substrate;
• a test device disposed on the array substrate and configured to receive a test signal from a display test apparatus to test a plurality of pixel units of the display panel;
• and
• a connection device disposed on the array substrate and configured to be electrically connectable to the display test apparatus,
• wherein the test device is configured to receive a discharge signal from the display test apparatus to discharge the plurality of pixel units in response to a switch of a connection state between the connection device and the display test apparatus from electrical connection to electrical disconnection, and
• wherein the connection device comprises:
• a first connection pad configured to receive a connection state detection signal from the display test apparatus;
• a second connection pad configured to transmit a feedback signal based on the connection state detection signal to the display test apparatus;
• and
• a conductive member electrically coupling the first connection pad to the second connection pad.