Patent ID: 7116295

Claim:
A method for testing a plurality of driver circuits of an active matrix organic light emitting display (AMOLED) before organic light emitting diodes are formed, each of the plurality of driver circuits comprising a test element, the display comprising: an input pad for inputting a selection signal and a data signal; a write scan line for enabling a target driver circuit to be tested in response to the selection signal; and a data line for transmitting the data signal to the target driver circuit; the method comprising the steps of: (a) determining whether all of the plurality of driver circuits are tested, and if not all of the plurality of driver circuits are tested, executing the step (b)–(e), if all of the plurality of driver circuits are tested, terminating the test; (b) assigning a value of the data signal via the input pad; (c) assigning a value of the selection signal via the input pad; (d) measuring a current signal flowing through the test element; and (e) analyzing the current signal to determine whether the functionality of the target driver circuit is normal, and if the functionality of the target driver circuit is normal, selecting another driver circuit to be tested and returning to the step (a), if functionality of the target driver circuit is not normal, recording a position of the target driver circuit, selecting another driver circuit to be tested and returning to step (a).