ACTIVE MATRIX ELECTROLUMINESCENT DISPLAY WITH DATA ADJUSTMENT RESPONSIVE TO POWER LINE VOLTAGE DROP

PROBLEM TO BE SOLVED: To provide a method used in an active matrix display system comprising a light-emitting element array, in which the current supplied to each light-emitting element is dependent upon the voltage between a pair of power lines, which ideally should provide a constant voltage but i...

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Bibliographische Detailangaben
Hauptverfasser: JOHN WILLIAM HAMER, MICHAEL JOHN MURDOCH, MICHAEL EUGENE MILLER
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method used in an active matrix display system comprising a light-emitting element array, in which the current supplied to each light-emitting element is dependent upon the voltage between a pair of power lines, which ideally should provide a constant voltage but in reality have finite resistance that produces an unintended voltage differential along the power lines proportional to the conduction current, said method automatically adjusting this voltage differential.SOLUTION: Display drivers sequentially receive an input image signal for driving light emitting elements within each region of an array of regions; analyze the input image signal received for each region to estimate the current that may be generated at at least one point along at least one power line providing a current to each region; and sequentially generate a converted image signal for driving the light emitting elements in each region.