Patent ID: 7071905

Claim:
An active matrix display comprising: an array of selection driving lines; an array of data driving lines crossing the array of selection driving lines; an array of sensing output lines crossing the array of selection driving lines; and a matrix of pixel elements, wherein a pixel element electrically connects to at least one selection driving line and electrically connects to at least one data driving line, the pixel element comprises, a biasing transistor having a gate, a source, and a drain, and a semiconductor channel between the source thereof and the drain thereof, a light emitting diode electrically connecting to the semiconductor channel of the biasing transistor, a resistor electrically connecting to the light emitting diode, a monitoring point on a current path that passes through at least the light emitting diode and the resistor, and a sensing output electrically connecting to a sensing output line, the sensing output receiving a sensing signal from the monitoring point when the sensing output is enabled.