Patent ID: 6194837
Filing Date: 2001-02-27
Classification: G09G,H01L

Abstract:
A display device comprising elements formed on a substrate, said elements including:a plurality of scanning lines;a plurality of data lines extending in a direction crossing a direction in which said scanning lines extend;a plurality of common power supply lines extending in a direction parallel to said data lines; andpixel regions formed in the shape of a matrix defined by said data lines and said scanning lines, each of said pixel regions including:a first thin film transistor having a first gate electrode to which a scanning signal is supplied via one of the scanning lines;a holding capacitor for holding an image signal supplied from a corresponding data line via said first thin film transistor;a second thin film transistor having a second gate electrode to which said image signal held by said holding capacitor is supplied; anda luminescent element including an organic semiconductor film formed between a pixel electrode provided in each of said pixel regions and an opposite electrode extending across the data lines such that said opposite electrode faces the plurality of pixel electrodes, said luminescent element being adapted to emit light when said organic semiconductor film is driven by a driving current which flows between said pixel electrode and said opposite electrode when said pixel electrode is electrically connected to a corresponding common power supply line via said second thin film transistor,light emitting areas of said organic semiconductor film being surrounded by a bank layer made up of an insulating film having a thickness greater than that of said organic semiconductor film, said bank layer being formed such that said data lines are, at least partly, covered with said bank layer.