ACTIVE MATRIX LIGHT EMITTING DIODE PIXEL STRUCTURE AND METHOD

摘要

A LED pixel structure (200, 300, 400, 600, 700) that reduces current nonuformities and threshold voltage variations in a "drive transistor" of the pixel structure is disclosed. The LED pixel structure incorporates a current source for loading data into the pixel via a data line. Alternatively, an auto zero voltage is determined for the drive transistor prior to the loading of data.