Patent ID: 8174280

Claim:
A method of testing a display panel, comprising: providing a display panel comprising: at least a shorting bar and a plurality of testing pads disposed in a first peripheral area; a plurality of IC pads disposed in a second peripheral area that is different from the first peripheral area, wherein the testing pads and the shorting bar are electrically connected; a plurality of gate lines, wherein a terminal of each of the gate lines is electrically connected to a portion of the IC pads and the other terminal of each of the gate lines is electrically connected to the testing pads; a plurality of data lines, wherein a terminal of each of the data lines is electrically connected to a portion of the IC pads and the other terminal of each of the data lines is electrically connected to the testing pads; and a plurality of pixels disposed in a display region, wherein part of the pixels are electrically connected between the two terminals of each of the gate lines, and electrically connected between the two terminals of each of the data lines; performing a first stage test, comprising inputting a common voltage signal and a plurality of first stage test signals to the testing pads to test the display panel; performing a switching step to stop inputting the first stage test signals, and inputting the common voltage signal continuously to the testing pads; and performing a second stage test, comprising inputting at least a second stage test signal to the IC pads.