Display device having defect inspection circuit

A display device having a driving substrate, a counter substrate and an electro-optic material arranged between the driving substrate and the counter substrate, wherein the driving substrate comprises:

• a plurality of control signal lines for providing control signals;
• a plurality of image signal lines intersecting with the control signal lines for providing an image display signal;
• a plurality of pixels each comprising a switching element, a driving electrode electrically connected to the switching element and the electro-optic material, each pixel being located proximate a respective intersection of the control signal lines and the image signal lines;
• a driving circuit for driving the control signal lines and the image signal lines, the driving circuit comprising a control signal line driving circuit connected to the control signal lines and an image signal line driving circuit having a plurality of shift registers and sample-and-hold circuits connected to the image signal lines, wherein the shift registers provide sampling signals to the sample-and-hold circuits and respective sample-and-hold circuits provide the image signal to corresponding image signal lines;
• and a driving circuit confirmation circuit comprising a plurality of switching means and an inspection signal output line, each switching means having a first terminal electrically connected to one of the image signal lines, a second terminal electrically connected to the inspection signal output line, and a third terminal connected to an inspection control input signal for controlling an electrical connection between the first terminal and the second terminal so as to enable the detection of a defect in individual image signal lines by detecting the presence or absence of a signal on the inspection signal output line.