Display, test system and test method of test system

An embodiment of the invention provides a display, a test system and a test method of the test system, relates to the technical field of display, and aims to save test time so that the production efficiency and the device utilization are improved. The test system comprises a test mainframe and the display, wherein the display comprises a display main board, a function control plate and a test response component; the test mainframe is used for sending a test instruction; the display main board is used for receiving the test instruction and converting the test instruction into a control instruction to be sent to the function control plate; and the function control plate is used for receiving the control instruction and controls the test response component for response. The display, the test system and the test method of the test system are used for testing the function control plate and the display main board of the display.