Patent ID: 6522315
Filing Date: 2003-02-18
Classification: G09G,H01L

Abstract:
A display apparatus, comprising:a substrate; a plurality of scanning lines disposed on the substrate; a plurality of data lines intersecting said plurality of scanning lines; a plurality of common power supply lines; and a plurality of pixels formed in a matrix by said scanning lines and said data lines, each of said pixels including: a first thin film transistor having a first gate electrode which is supplied with a scanning signal through at least one scanning line of said plurality of scanning lines, a holding capacitor which holds an image signal supplied through at least one data line of said plurality of data lines through said first thin film transistor, a second thin film transistor having a second gate electrode which is supplied with said image signal held by said holding capacitor, and a luminescent element provided between a pixel electrode corresponding to each of said pixels and an opposite electrode opposed to said pixel electrode, the luminescent element being disposed in series with the second thin film transistor, the luminescent element being able to emit light due to driving current which flows between said pixel electrode and said opposite electrode when said pixel electrode is electrically connected to at least one common power supply line of said plurality of common power supply lines through said second thin film transistor; wherein said second thin film transistor is of a P channel type, and a potential of said at least one common power supply line is set at a higher level than a potential of said opposite electrode.