OLED LUMINANCE DEGRADATION COMPENSATION
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Abstract
A system and method are disclosed for determining a pixel capacitance. The pixel capacitance is correlated to a pixel age to determine a current correction factor used for compensating the pixel drive current to account for luminance degradation of the pixel that results from the pixel aging.
47 Citations
18 Claims
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1-17. -17. (canceled)
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18. A method of compensating for luminance degradation due to aging of a display pixel having an electroluminescent device, the method comprising:
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measuring a characteristic of the display pixel; determining a characteristic of an electroluminescent device in one or more base pixels not driven by display currents; correcting the measured characteristic of the display pixel based on the determined characteristic of the electroluminescent devices; compensating a drive current for the electroluminescent device in the display pixel according to the correlated current correction factor; and driving the electroluminescent device in the display pixel with the compensated drive current.
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Specification