LED display apparatus and LED pixel error detection method thereof
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United States of America Patent
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Jan 30, 2018
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N/A
app pub date -
Jul 14, 2015
filing date -
Sep 17, 2014
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Abstract
A light emitting diode (LED) display apparatus, including: a plurality of LED lines including a plurality of LEDs; a plurality of switches connected to respective LED lines among the plurality of LED lines; a controller configured to sequentially supply power to the plurality of LED lines by sequentially turning on and off the plurality of switches; and an LED driver configured to detect an error state of an LED from the plurality of LEDs by estimating current flowing through the plurality of LED lines, and to provide the controller with a result of the detection.
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