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Array substrate, display panel and display device

  • US 10,061,455 B2
  • Filed: 05/13/2016
  • Issued: 08/28/2018
  • Est. Priority Date: 12/11/2015
  • Status: Active Grant
First Claim
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1. An array substrate, comprising:

  • a touch circuit including a plurality of first switching units, a controlling unit, and a plurality of touch detecting terminals;

    a plurality of independent touch electrodes arranged in an array;

    a plurality of second switching units; and

    at least one reference signal terminal providing a reference signalwherein;

    a touch electrode is electrically connected to a touch detecting terminal through at least one of the plurality of first switching units, and electrically connected to the at least one reference signal terminal through at least one of the plurality of second switching units,when the array substrate is in a touch detecting stage, the controlling unit controls the first switching units to be turned on while the second switching units to be turned off such that the touch electrodes are progressively detected,when the array substrate is in a displaying stage, the controlling unit controls the first switching units to be turned off while the second switching units to be turned on, such that the reference signal is transferred to the touch electrodes from the at least one reference signal terminal,the array substrate includes a non-display region and a display region, and the plurality of first switching units and the plurality of second switching units are disposed in the display region,a first switching unit includes at least one first type transistor, wherein the at least one first type transistor has a gate electrode electrically connected to the controlling unit, a source electrode electrically connected to the touch electrode, and a drain electrode electrically connected to the touch detecting terminal, anda second switching unit includes at least one second type transistor, wherein the at least one second type transistor has a gate electrode electrically connected to the controlling unit, a source electrode electrically connected to the at least one reference signal terminal and a drain electrode electrically connected to the touch electrode.

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