Display and method for repairing defects thereof

It is an object of the invention to provide a display and a method for repairing defects of the same in which defects such as inter-layer short-circuits and short-circuits in a single that have occurred at steps for manufacturing the display can be easily repaired to provide a good product with a probability higher than that in the related art. Laser irradiation is carried out as a first cycle of laser irradiation by forming a slit S 1 in a region where a drain bus line 220 completely covers a gate bus line 218 to form a cut portion longer than the width of the gate bus line 218 adjacent to an inter-layer short-circuit 290 such that it splits an intersecting portion of the drain bus line 220 into two parts as shown in FIG. 5 b. Next, as shown in FIG. 5 c, slits S 2 and S 3 are respectively used for second and third cycles of laser irradiation to cut the drain bus line 220 at both ends of the cut portion (indicated by S 1 ), thereby isolating the inter-layer short-circuit 290 of the drain bus line 220.