Patent ID: 7271612

Claim:
A method for measuring the holding properties of the TFT array of an active matrix display panel comprising multiple pixel circuits with holding capacitors, this measuring method being characterized in that each of the multiple pixel circuits comprises a holding capacitor, a switching transistor for connecting a data line to the holding capacitor, and a gate line for controlling the switching of the switching transistor; the multiple pixel circuits comprise at least a first pixel circuit, a second pixel circuit and a third pixel circuit; said method comprising: charging the holding capacitor of the first pixel circuit and then charging the holding capacitor of the second pixel circuit, performing an effect-eliminating procedure including a step of selecting the data line and the gate line of the third pixel circuit where the holding capacitor of the third pixel circuit is not charged in said charging step, and measuring the charges of the holding capacitor of the first pixel circuit and then measuring the charge of the holding capacitor of the second pixel circuit, respectively, wherein a predetermined holding time after charging has elapsed for each pixel circuit.