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Inverter for liquid crystal display

  • US 8,723,780 B2
  • Filed: 04/24/2008
  • Issued: 05/13/2014
  • Est. Priority Date: 09/04/2002
  • Status: Expired due to Fees
First Claim
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1. An inverter for a liquid crystal display, the inverter comprising:

  • an inverter controller generating a lamp driving signal having on-time and off-time, a carrier signal for pulse width modulation in synchronization with a horizontal synchronization signal, and an oscillating signal by pulse width modulating a reference signal based on the carrier signal;

    a power switching element selectively transmitting a DC voltage in response to the oscillating signal from the inverter controller; and

    a voltage booster for driving a lamp in response to a signal from the switching element,wherein the carrier signal restarts whenever pulses of the horizontal synchronization signal are generated, andwherein a falling edge of the carrier signal is synchronized with a falling edge of the horizontal synchronization signal.

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