Patent ID: 7816687

Claim:
An organic light emitting diode display (OLED) comprising: an image display part comprising a plurality of pixels, each pixel comprising a driving transistor configured to control the driving of a pixel; a scan driver configured to transmit scan signals to scanning lines electrically connected to the plurality of pixels; and a data driver configured to transmit data signals to data lines electrically connected to the plurality of pixels, wherein the driving transistor comprises: a substrate; a semiconductor layer formed on the substrate, comprising: one or more source sections connected to first and second source contacts of a source electrode through first and second source contact holes, the first and second source contact holes substantially defining a source contact line; one or more drain sections connected to first and second drain contacts of a drain electrode through first and second drain contact holes, the first and second drain contact holes substantially defining a drain contact line; and a channel formed between the source contact line and the drain contact line, wherein the channel comprises one of: A) a channel region with a current path from only one source section to a plurality of drain sections; and B) a channel region with a current path from only one drain section to a plurality of source sections; and a gate electrode aligned with the channel and a gate insulating layer interposed between the gate electrode and the channel, wherein the first and second source contact holes and the first and second drain contact holes are arranged such that no line perpendicular to the source contact line intersects both a source contact hole and a drain contact hole.