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TOUCH DISPLAY SUBSTRATE AND TOUCH DISPLAY DRIVING METHOD

  • US 20190332202A1
  • Filed: 09/27/2018
  • Published: 10/31/2019
  • Est. Priority Date: 04/27/2018
  • Status: Abandoned Application
First Claim
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1. A touch display substrate, comprising:

  • a substrate, a common voltage compensation circuit, an electrode array and a touch display driving integrated circuit (TDDI circuit) all sequentially arranged on the substrate, and a first lead wire, a second lead wire, and a third lead wire disposed on the substrate;

    the electrode array comprising a plurality of electrode units arranged in an array, and one first lead wire being disposed corresponding to each of the electrode units, and the common voltage compensation circuit comprising a plurality of switching units respectively corresponding to the plurality of electrode units;

    each of the electrode units being electrically connected to an output end of the corresponding switching unit and the TDDI circuit through the corresponding first lead wire, and input ends of the plurality of switching units being electrically connected to the TDDI circuit through the second lead wires;

    control ends of the plurality of switch units being electrically connected to the TDDI circuit through the third lead wires;

    the TDDI circuit being configured to control the switching unit to turn on during a display phase, and simultaneously load a common voltage signal to the first lead wire and the second lead wire, and control the switching unit to turn off during a touch sensing phase, and load a touch sensing signal to the first lead wire.

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