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Display device and method of checking input signals

  • US 7,982,726 B2
  • Filed: 09/04/2003
  • Issued: 07/19/2011
  • Est. Priority Date: 09/19/2002
  • Status: Active Grant
First Claim
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1. A display device comprising:

  • a signal identifying unit that receives an input signal and identifies the type of the input signal;

    a signal checking unit that checks whether the identified input signal is abnormal;

    a data setting unit that sets data corresponding to a user input regarding the received input signal, the set data representing how to check the identified input signal; and

    a signal changing unit that switches from the checked input signal to a next input signal to be checked based on the set data corresponding to the identified type of the input signal so that the signal checking unit checks whether the next input signal is abnormal, if the identified input signal is determined to be abnormal,wherein the signal checking unit senses whether an input signal cable is connected to the display device and only checks whether the identified input signal is abnormal by decoding the identified input signal when the input signal cable is connected to the display device.

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