Patent ID: 7145532

Claim:
An image display apparatus, comprising: a plurality of pixels disposed on a substrate; a plurality of signal lines for inputting display signals into said plurality of pixels; and a plurality of signal lines for inputting control signals into said plurality of pixels; wherein said plurality of signal lines for inputting display signals into said plurality of pixels and said plurality of signal lines for inputting control signals into said plurality of pixels are arranged in a matrix configuraton; wherein each of said plurality of pixels is provided with a light emitting element with light intensity thereof varying with a current therethrough, and a pixel circuit for driving said light emitting element; wherein said pixel circuit is provided with current limiting means for generating a specified drive current, and a time modulator circuit for modulating a duration of time supplying said specified drive current to said light emitting element; wherein said image display apparatus further comprises a reference-current source disposed outside of said pixel circuit for generating a reference current, said current limiting means is provided with storage means for storing information on a value of said reference current, said current limiting means is formed of at least one thin film transistor, said storage means is formed of a capacitor, and said capacitor stores a gate voltage of said at least one thin film transistor when said reference current flows through said at least one thin film transistor; and wherein said time modulator circuit is supplied with a triangular sweep voltage, and is configured to reset said gate voltage stored in said capacitor when said triangular sweep voltage becomes equal to an analog voltage signal stored in advance which is said display signal.