Patent ID: 7122832
Filing Date: 2006-10-17
Classification: H01L

Abstract:
1. An EL display device having a plurality of display pixels comprising an EL element having an emissive layer between first and second electrodes; a first thin film transistor having a first conductive region formed of a semiconductor film and connected to a data line, a gate electrode connected to a gate line, and a second conductive region; and a second thin film transistor having a third conductive region formed of a semiconductor film and connected to a power source line of said EL element, a second gate electrode connected to said second conductive region of said first thin film transistor, and a fourth conductive region connected to said EL element, wherein one of a source electrode and a drain electrode having a light shielding property and connected to said third conductive region or said fourth conductive region is disposed so as to cover both a region above an interface between a channel of said second thin film transistor and said fourth conductive region and a region above an interface between said channel and said third conductive region, and said two interfaces are shielded from light emitted from said emissive layer.