Patent ID: 7532316

Claim:
A display panel inspection apparatus, which inspects a display panel composed of a plurality of pixels, comprising: a detecting unit detecting whether or not each of said pixels is a defective pixel; and a holding unit holding a result of the detection by said detecting unit, wherein said detecting unit includes an optical detecting unit generating a detection state corresponding to output light from said pixel and a judging unit, on the basis of the detection state, making a judgment as to whether or not said pixel is a defective pixel and outputting a detection signal when the judgment shows that said pixel is a defective pixel, said holding unit holds a state of the detection signal outputted from the judging unit, said optical detecting unit includes a plurality of optical detection elements disposed according to an arrangement direction of said plurality of pixels, said judging unit includes a plurality of defective pixel judging units each connected in corresponding relation to each of said plurality of optical detecting elements, and said holding unit includes a plurality of latch units each connected in corresponding relation to each of said plurality of optical detecting elements.