Patent ID: 8207930

Claim:
A display device comprising: a display panel; a driving chip mounted on the display panel; and a flexible printed circuit film attached to the display panel; wherein the display panel comprises: a plurality of display signal lines including gate lines and data lines; a plurality of first pads; a plurality of second pads; a plurality of third pads; a plurality of first switching elements disposed between the first pads and the second pads, each of the first switching elements comprising a control terminal, an input terminal, and an output terminals, the input terminal of the first switching elements being connected to the second pads and the output terminals of the first switching elements being connected to the first pads, and the second pads being directly connected to the third pads; a plurality of second switching elements, each of the second switching elements comprising a control terminal, an input terminal and an output terminal, the output terminals of the second switching elements being directly connected to the third pads; a first test pad connected to the control terminals of the first switching elements and to the control terminals of the second switching elements; and a second test pad connected to the input terminals of the second switching elements, wherein the first pads are located at ends of one of the display signal lines, and wherein the first pads, the first switching elements, the second pads, the third pads, and the second switching elements are connected in series and one to one correspondence.