| 摘要 |
PURPOSE: A light emitting diode backlight system is provided to equally guarantee color purity of LED(Light Emitting Diode) devices. CONSTITUTION: An LED device light amount control unit(105) comprises an LED driver(105a) and an LED(Light Emitting Diode) device for a color sensor. The LED driver is connected to an LED backlight to drive the LED devices. The target adjusting device for the color sensor determines a light receiving amount of LED devices detected through a color sensor. The target adjusting device for the color sensor supplies a duty value corresponding to a light amount of LED devices which will be compensated in the LED driver.
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