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Apparatus for controlling LCD backlight in mobile station

  • US 20040041780A1
  • Filed: 02/05/2003
  • Published: 03/04/2004
  • Est. Priority Date: 08/28/2002
  • Status: Active Grant
First Claim
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1. An apparatus for controlling a backlight of an LCD in a mobile station comprising:

  • a backlight LED (Light Emit Diode) for generating a backlight to the LCD;

    a backlight drive which receives an input current and supplies an output current to the backlight LED to drive the backlight LED;

    a current control unit for controlling the input current of the backlight drive by a current control signal; and

    a control unit for supplying the current control signal to the current control unit to control the operation of the LCD according to the normal mode or dimming mode.

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