Patent ID: 8884993

Claim:
A signal processing apparatus, comprising: a luminance degradation information production section, containing an updating portion and a retaining portion, adapted to produce and successively update luminance degradation information regarding degradation of a luminance of light from a light emitting element in a pixel circuit in accordance with a temperature condition upon emission based on an ambient temperature of the pixel circuit and a luminance value, which degrades in response to elapsed time, of a particular light emitting element which is driven to emit light with a particular gradation value; a luminance degradation value calculation section adapted to calculate a luminance degradation value regarding degradation of the luminance for each pixel circuit based on a luminance characteristic indicative of a characteristic of a correlation between an image signal supplied to the pixel circuit which is in a predetermined state and the luminance of light emitted from the pixel circuit in response to the image signal and the luminance degradation information produced by said luminance degradation information production section; and a correction section adapted to correct the gradation value of the image signal to be inputted to the pixel circuit based on the luminance degradation value; and wherein said luminance degradation information production section includes a luminance degradation characteristic production section adapted to produce a luminance degradation characteristic regarding degradation of the luminance of the pixel circuit at a particular temperature based on a measurement temperature when the luminance value is measured and the luminance value; and an addition section adapted to successively add a new degradation amount regarding the degradation of the luminance of the pixel circuit to the luminance degradation information based on the ambient temperature, the luminance degradation characteristic, luminance degradation information produced with regard to the pixel circuit before the correction and the gradation value of the image signal inputted to the pixel circuit to produce new luminance degradation information.