Patent ID: 9495894
Filing Date: 2016-11-15
CPC Classification: G09G,H01L

Claim Text:
1. A display device including a plurality of pixel circuits each having an electric optical element in which a luminance is controlled by a current, and a drive transistor configured to control a current to be supplied to the electric optical element, the drive transistor having a channel layer formed of an oxide semiconductor, the display device comprising: a current measuring portion configured to measure a drive current of the drive transistor included in each of the pixel circuits and to output a value of the drive current as current data; a current data dividing portion configured to divide the current data into high frequency component data and low frequency component data; a high frequency component data compression processing portion configured to compress the high frequency component data; a low frequency component data compression processing portion configured to compress the low frequency component data; and a storage portion configured to save the high frequency component data after compression by the high frequency component data compression processing portion and the low frequency component data after compression by the low frequency component data compression processing portion, wherein data compression is performed by different techniques in the high frequency component data compression processing portion and the low frequency component data compression processing portion.