Abstract: A thin film transistor (TFT) having an active layer pattern, the active layer pattern including a first active layer pattern extending in a first direction; a second active layer pattern extending in the first direction and parallel to the first active layer pattern; and a third active layer pattern connecting a first end of the first active layer pattern to a first end of the second active layer pattern.

Abstract: In a method of repairing a display panel, only a defective portion of the display panel is lighted. Heat generated from the lighted defective portion is detected to obtain a position of a defect in the defective portion. A laser is irradiated onto the defective portion to repair the defective portion. The heat generated from the lighted shorted portion is detected using infrared light to obtain an accurate position of the defect in the shorted portion. Thus, an invisible minute defect such as a tiny short can be accurately repaired, so that a yield of the display panel is improved.

Abstract: A flat panel display device includes a substrate having an emission area in which an image is displayed and a pad area that is outside of the emission area, a semiconductor layer on the substrate, and the semiconductor layer has crystallization areas and amorphous areas. An electrostatic protecting circuit is on a portion of at least one of the amorphous areas corresponding to the pad area, and a panel circuit unit is on a portion of at least one of the crystallization areas corresponding to the pad area.

Abstract: A thin film transistor (TFT) having an active layer pattern, the active layer pattern including a first active layer pattern extending in a first direction; a second active layer pattern extending in the first direction and parallel to the first active layer pattern; and a third active layer pattern connecting a first end of the first active layer pattern to a first end of the second active layer pattern.

Abstract: A display device includes an active region including a plurality of unit pixels, the unit pixels including first circuit regions and image display regions, first peripheral regions adjacent to the active region, the first peripheral region including a plurality of second circuit regions, the first circuit regions and the second circuit regions being arranged along same virtual straight lines, and second peripheral regions adjacent to the active region, the second peripheral region including a plurality of third circuit regions.

Abstract: A display device and a method of driving the same, in which the display device includes: a light-emitting element; a first capacitor connected between first and second contact points; a driving transistor that has a control terminal connected to the second contact point, an input terminal connected to a driving voltage, and an output terminal connected to the light-emitting element; a first switching transistor connected between a data voltage or a sustain voltage and the first contact point; a second switching transistor connected between the second contact point and the output terminal of the driving transistor; and a third switching transistor connected between a reference current source and the output terminal of the driving transistor.