Patent ID: 6946307
Filing Date: 2005-09-20
Classification: G09G

Abstract:
1. A method for testing a plurality of circuits of an active matrix organic light emitting display (AMOLED), the AMOLED comprising a write scan line configured to enable a circuit to be tested responsive to a selection signal and a data line configured to transmit a data signal to the circuit, the circuit comprising a first transistor and a second transistor respectively comprising a source, a gate and a drain, the source or the drain of the first transistor is connected to the data line, the gate of the first transistor is connected to the write scan line, the drain or the source of the second transistor being a test output terminal and being directly connected to a signal extractor, the method comprising the following steps prior to implantation of organic light emitting diodes (OLED): assigning a value of the data signal to the write scan line; assigning a value of the selection signal to the data line; and extracting a signal from the test output terminal.