Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
February 21, 2012
Patent Application Number
11934152
Date Filed
November 2, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
An active-matrix circuit for controlling an LED display pixel that includes a control circuit responsive to control signals for storing a luminance value in a storage circuit during a frame period. A drive circuit responds to the storage circuit for controlling current through an LED to emit light at a luminance level determined by the luminance value. A luminance-value reduction circuit, connected to the storage circuit, provides a controlled reduction of the luminance value stored in the storage circuit during the frame period.
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