Patent ID: 8736521
Filing Date: 2014-05-27
Classification: G09G

Abstract:
1. A display device comprising: a pixel array portion in which a plurality of sub-pixels are disposed in a matrix comprising rows and columns of sub-pixels, each sub-pixel including an electro-optic element, a write transistor for writing a video signal, a hold capacitor for holding the video signal written by said write transistor, and a drive transistor for driving said electro-optic element in accordance with the video signal held in said hold capacitor; a plurality of unit pixels, each unit pixel comprising a plurality of sub-pixels that are adjacent to each other, wherein the sub-pixels of each unit pixel belong to at least two rows of the matrix of sub-pixels; a plurality of power source supply lines through which power source potentials different in potential from one another are selectively supplied to said drive transistors; wherein one power source supply line is wired every other row, such that: wherein the display device is configured to perform a threshold correcting operation for each sub-pixel for correcting a dispersion of threshold voltages of the drive transistors of the sub-pixels; and wherein the threshold correcting operation is performed for all of the sub-pixels of a given unit pixel simultaneously, each sub-pixel is adapted to perform a mobility correcting operation for correcting a dispersion of mobilities of the drive transistors of the sub-pixels, an operation for writing the video signal by said write transistor is performed sequentially, with a time lag between each respective operation, for each of the sub-pixels that constitute the given unit pixel and that are in a same column, and all of the operations for writing the video signals for the sub-pixels that constitute the given unit pixel and that are in the same column are performed within a same horizontal time period, and the mobility correcting operation is performed sequentially, with a time lag between each respective operation, for each of the sub-pixels that constitute the given unit pixel and that are in the same column, and all of the mobility correcting operations for the sub-pixels that constitute the given unit pixel and that are in the same column are performed within the same horizontal time period.