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Liquid crystal display device

  • US 10,168,808 B2
  • Filed: 12/29/2015
  • Issued: 01/01/2019
  • Est. Priority Date: 01/09/2015
  • Status: Active Grant
First Claim
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1. A liquid crystal display device comprising:

  • a liquid crystal element array including a plurality of liquid crystal display elements arranged in a matrix form;

    a plurality of scan lines arranged in each row of the liquid crystal element array and configured to supply scan signals to the plurality of liquid crystal display elements arranged in a corresponding row;

    a plurality of signal lines arranged in each column of the liquid crystal element array and configured to supply image signals to the plurality of liquid crystal display elements arranged in a corresponding column;

    a plurality of driving electrodes arranged in the liquid crystal element array and supplied with driving signals for detecting an external proximity object;

    a first voltage line configured to supply a first voltage;

    a second voltage line configured to supply a second voltage different from the first voltage; and

    a third voltage line being a voltage line different from the first voltage line and the second voltage line and configured to supply a third voltage,wherein in a period of detecting the external proximity object, a selected driving electrode among the plurality of driving electrodes is electrically connected to one of the first voltage line and the second voltage line, and the selected driving electrode is supplied with the driving signal, and unselected driving electrodes among the plurality of driving electrodes are electrically connected to the third voltage line, andwherein a line width of the third voltage line is narrower than a line width of the second voltage line.

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