Patent ID: 8314783

Claim:
A system for calibration of a display array having a plurality of pixel circuits in columns and rows, comprising: a dummy pixel area having a plurality of dummy pixels in a dummy row, each corresponding to a pixel in a row of the display array; an error extraction system for extracting an error between a current in a row of the display array and a reference current associated with the dummy row, the dummy pixels in the dummy row receiving a data voltage substantially identical to that received at the pixels in the corresponding row of the display array, the error extraction system including: a first sensor for monitoring a current in the corresponding row of the display array; and a second sensor for monitoring a current in the dummy row and generating a reference current based on the monitored current in the dummy row; and an estimation system for estimating a correction parameter for compensating a data voltage provided to the display array, based on an error between the monitored current output from the first sensor and the reference current.