Patent ID: 7285797

Claim:
An image display apparatus comprising: a plurality of pixel circuits arranged in rows and columns and each having a current-driven light-emitting device; a plurality of scan lines arranged correspondingly to respective rows of said plurality of pixel circuits and successively selected in constant cycles; a plurality of data lines arranged correspondingly to respective columns of said plurality of pixel circuits; and a constant current circuit provided correspondingly to said plurality of data lines and supplying, to said plurality of data lines each, drive current that is set according to a display brightness of a pixel circuit to be scanned among said plurality of pixel circuits, wherein said plurality of pixel circuits each include: a node electrically coupled to a corresponding data line in a first mode to allow said drive current to flow into/out of said node and electrically separated from said corresponding data line in a second mode performed subsequently to said first mode; a pixel drive circuit connected between said node and a first voltage supply, writing said drive current flowing into/out of said node in said first mode and supplying, to said current-driven light-emitting device, current according to said written drive current in said second mode; and said current-driven light-emitting device provided between said node and a second voltage supply and rendered conductive in said second mode to be supplied with said current according to said drive current, and said pixel drive circuit includes: first and second transistors connected in series between said node and said first voltage supply and, in said first mode, said drive current passes through said first and second transistors; and first and second capacitor elements connected to respectively hold, on respective gate electrodes of said first and second transistors, voltages determined by said drive current in said first mode.