Liquid crystal display device

  • US 8,952,948 B2
  • Filed: 11/09/2011
  • Issued: 02/10/2015
  • Est. Priority Date: 11/26/2010
  • Status: Active Grant
First Claim
Patent Images

1. An LCD device comprising:

  • a liquid crystal display panel in which a gate driver for alternately driving two transistors is formed;

    a data driver which drives data lines of the liquid crystal display panel;

    a timing controller which generates one voltage signal for switching the two transistors, and outputs the one voltage signal; and

    a level shifter which comprises a switching signal generating unit generating two of first and second switching signals to switch the two transistors by using the one voltage signal, and outputs the generated switching signals to the gate driver,wherein the switching signal generating unit comprises;

    a flip-flop which receives the voltage signal, and outputs first output signal (Q) and second output signal (Q′

    );

    first and second delay circuits which respectively delay the first output signal and second output signal;

    a first And-Gate which performs an AND logical operation for the voltage signal and a first delay signal (A) outputted from the first delay circuit; and

    a second And-Gate which performs an AND logical operation for the voltage signal and a second delay signal (B) outputted from the second delay circuit.

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