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Display device and driving method thereof

  • US 9,557,839 B2
  • Filed: 11/09/2011
  • Issued: 01/31/2017
  • Est. Priority Date: 07/08/2011
  • Status: Active Grant
First Claim
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1. A display device comprising:

  • a plurality of pixels;

    a voltage transmitting line through which a first voltage is transmitted to a first pixel among the plurality of pixels;

    a data line through which a data voltage is transmitted to the first pixel;

    a plurality of sensing units including a first sensing unit connected to the voltage transmitting line; and

    a gate line;

    a reset signal line through which a reset signal is transmitted to the first sensing unit;

    a sensing signal line to which a sensing signal is output from the first sensing unit; and

    a reference capacitor connected to a sensing capacitor,wherein the first pixel includes a first switching element including an input terminal connected to the voltage transmitting line and a second switching element including an input terminal connected to the data line,wherein the first sensing unit includes a control switching element including an input terminal connected to the voltage transmitting line,wherein the first sensing unit includes;

    a sensing element and the sensing capacitor both connected to a control terminal of the control switching element; and

    a sensing switching element connected to an output terminal of the control switching element,wherein a control terminal of the sensing element is connected to the gate line, an input terminal of the sensing element is connected to the reset signal line, and an output terminal of the sensing switching element is connected to the sensing signal line, andwherein the reset signal includes a reset high voltage and a reset low voltage that is lower than the reset high voltage, and wherein the reset high voltage is transmitted through the reset signal line when a gate-on voltage is transmitted through the gate line.

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