Patent ID: 8305373
Filing Date: 2012-11-06
Classification: G09G

Abstract:
1. A pixel driving device for driving a pixel, connected to a signal line, and comprising a light emitting element, and a drive transistor for controlling current supplied to the light emitting element by one end of a current path of the drive transistor being connected to one end of the light emitting element, comprising: a memory for storing property parameters that relate to electrical properties of the pixel; an image data conversion circuit that converts image data comprising a digital signal based on a conversion property set in the image data conversion circuit and generates an original gradation signal comprising a digital signal; a signal correction circuit for outputting a corrected gradation signal comprising a digital signal, by adding a correction amount set based on a property parameter stored in the memory, to the original gradation signal; and a drive signal impressing circuit for generating a drive signal comprising an analog signal based on the corrected gradation signal after the corrected gradation signal is input, and impressing the drive signal on one end of the signal line; wherein the original gradation signal generated by the image data conversion circuit has a value that corresponds to a gradation value of the digital signal of the image data, and a maximum value of the digital signal of the original gradation signal is set to a value equal to or smaller than a value that is acquired by subtracting a value corresponding to the correction amount in the signal correction circuit from a maximum value in an input range of the drive signal impressing circuit.