Invention Grant
US08558765B2 Method and apparatus for uniformity and brightness correction in an electroluminescent display 有权
用于电致发光显示器中的均匀性和亮度校正的方法和装置

Method and apparatus for uniformity and brightness correction in an electroluminescent display
Abstract:
A method for reducing brightness uniformity variations in an active-matrix electroluminescent (EL) display employing amorphous silicon thin-film transistors, by providing an active-matrix EL display having amorphous silicon thin-film transistors; and deriving a first correction value from a measured or estimated value of light-emitting element performance. Subsequently groups of light-emitting elements are identified, whereupon one or more representative light-emitting elements are selected. Remaining steps include measuring total representative current used by the representative light-emitting elements for each predetermined group of light-emitting element; deriving an estimated second correction value from the first correction value, or the measured or estimated value of light-emitting element performance, and the measured total representative currents for each individual light-emitting elements; and employing the estimated second correction value to correct image signals for the changes in the output of the light-emitting elements and produce compensated image signals.
Information query
Patent Agency Ranking
0/0