SYSTEM AND METHODS FOR EXTRACTION OF THRESHOLD AND MOBILITY PARAMETERS IN AMOLED DISPLAYS

摘要

A system extracts effective parameters from a pixel circuit that includes a light emitting device, a drive device to provide a programmable drive current to the light emitting device, a programming input, and a storage device to store a programming signal. The system measures the value of at least one operating parameter of the pixel circuit at a plurality of levels, and then extracts the value of at least one related parameter of the pixel circuit, based on the measured values of the at least one operating parameter. The measured values of the operating parameter are translated to effective values for driving the pixel circuit, based on the extracted value. Then effective parameters for driving effective devices in the pixel circuit are extracted, based on the translated values, and stored for use in compensating input signals to the pixel circuit.

主权项

1. A method of extracting effective parameters from a pixel circuit that includes a light emitting device, a drive device to provide a programmable drive current to the light emitting device, a programming input, and a storage device to store a programming signal, the method comprising:
measuring the value of at least one operating parameter of the pixel circuit at a plurality of levels, extracting the value of at least one related parameter of the pixel circuit, based on the measured values of the at least one operating parameter, translating the measured values of said operating parameter to effective values for driving the pixel circuit, based on the extracted value, extracting effective parameters for driving effective devices in the pixel circuit, based on the translated values, and storing the extracted effective parameters for use in compensating input signals to the pixel circuit.