Patent ID: 8692558

Claim:
A display panel having a display region and a non-display region, the display panel comprising: a first substrate, a second substrate, and a display medium located between the first substrate and the second substrate; a plurality of data lines and a plurality of scan lines, the scan lines and the data lines being located on the first substrate within the display region; a plurality of pixel units located on the first substrate within the display region, each of the pixel units being electrically connected to one of the scan lines and one of the data lines; at least one testing line located on the first substrate within the non-display region, the scan lines crossing over the at least one testing line and being electrically insulated from the at least one testing line; at least one testing pad located on the first substrate within the non-display region, the at least one testing pad being electrically connected to the at least one testing line; a common voltage line located on the first substrate within the non-display region and disposed adjacent to the at least one testing line; and a common voltage pad located on the first substrate within the non-display region and electrically connected to the common voltage line, wherein the at least one testing line is electrically connected to the common voltage line.