Patent ID: 8120601

Claim:
A display drive apparatus for driving a display pixel connected to a data line, the display pixel includes a light-emitting element and a drive element in which one end of a current path is connected to the light-emitting element, the display drive apparatus comprising: a specific value detection section which obtains a specific value corresponding to variation of an element characteristic of the drive element; and a gradation signal correction section which generates a corrected gradation signal by correcting a gradation signal according to display data based on the specific value and applies the corrected gradation signal as a driving signal from one end of the data line to the display pixel, wherein the specific value detection section has a difference value detection section which detects a difference value composed of a value obtained by amplifying, with a preset amplification ratio, a difference voltage between a measured voltage and a standard voltage, said measured voltage is a detected voltage at the one end of the data line when a reference current is allowed to flow in the current path of the drive element on the display pixel via the data line and said standard voltage is corresponding to the magnitude of the reference current, and the specific value detection section obtains the specific value based on the difference value.