Patent ID: 8502766

Claim:
An active device array substrate with a display region and a peripheral circuit region, comprising: a plurality of first pixel units and a plurality of second pixel units arrayed in the display region, wherein each first pixel unit and each second pixel unit respectively comprise a scan line and a data line, each of the scan lines having a first end and a second end; a first light-on testing circuit disposed in the peripheral circuit region and connected to the first ends of the scan lines of the first pixel units; a second light-on testing circuit disposed in the peripheral circuit region and connected to the first ends of the scan lines of the second pixel units; a plurality of sets of first signal line(s) disposed in the peripheral circuit region, wherein each two adjacent sets of first signal line(s) are alternatively electrically connected to the second ends of the scan lines of the first pixel units and of the second pixel units respectively, so that each of the first pixel units connecting between the first light-on testing circuit and the corresponded one of the sets of first signal line(s), each of the second pixel unit connects between the second light-on testing circuit and the corresponded one of the sets of first signal line(s); a plurality of first contact pads disposed in the peripheral circuit region, wherein the sets of first signal line(s) are electrically connected between the second ends of the scan lines of the first pixel units and the first contact pads and between the second ends of the scan lines of the second pixel units and the first contact pads, therefore the sets of first signal line(s) are detected for determining whether they shorted with each other by a plurality of first testing signals inputted through the first light-on testing circuit and the second light-on testing circuit for lighting-on the first pixel units and the second pixel units; a plurality of sets of second signal line(s) disposed in the peripheral circuit region, and electrically connected to the data lines of the first pixel units and of the second pixel units respectively; a third light-on testing circuit disposed in the peripheral circuit region; and a plurality of second contact pads disposed in the peripheral circuit region, wherein one end of each contact pad is electrically connected to the third light-on testing circuit and the other end of each contact pad is electrically connected to the sets of second signal lines, therefore the sets of second signal line(s) are detected for determining whether they have any disconnection by a second testing signal inputted through the third light-on testing circuit for lighting-on the first pixel units and the second pixel units.