Apparatus and method for compensating current deviation

摘要

An apparatus and method for compensating for a current deviation are provided. A current is applied through a light emitting diode (LED) array to which LEDs are connected. A current deviation is compensated among each respective string of the LED array using at least one constant current circuit connected to each of the respective strings.

主权项

1. A current deviation compensating circuit comprising:
at least one light emitting diode (LED) array to which a plurality of strings of LEDs are connected; and a plurality of constant current circuits connected to each respective string of the LED array to compensate for a current deviation among each of the respective strings; wherein the constant current circuits of the plurality of LED strings are controlled through a common input line to respective ones of the constant current circuits.