Patent ID: 7738223

Claim:
An active device array substrate, comprising: a plurality of scan lines and a plurality of data lines; a plurality of pixel units, being electrically connected to the corresponding scan lines and data lines, respectively; a plurality of electrostatic discharge (ESD) protection elements, wherein each ESD protection element has a first connection terminal, a second connection terminal and a third connection terminal, and the first connection terminal is electrically connected to one of the corresponding scan line and data line; a short ring electrically connected to the second connection terminal of each ESD protection element; and a conductive wire electrically connected to the third connection terminal of each ESD protection element, wherein the conductive wire is not connected to the short ring; an ESD biased generator electrically connected to the conductive wire, wherein the ESD biased generator is not directly connected to the short ring, and the conductive wire directly connects with the ESD biased generator and the third connection terminal of each ESD protection element, wherein, as an ESD stress occurs, the ESD biased generator would sense an electrostatic voltage and provide a voltage to the ESD protection elements to turn on the ESD protection elements, so that the accumulated electrostatic charges are conducted to the short ring.