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METHOD AND CIRCUIT FOR DISPLAY PANEL TO SUPPLY SYNC SIGNAL TO TOUCH PANEL

  • US 20160253021A1
  • Filed: 10/16/2014
  • Published: 09/01/2016
  • Est. Priority Date: 09/25/2014
  • Status: Abandoned Application
First Claim
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1. A method for a display panel to supply a sync signal to a touch panel, comprising the following steps:

  • Step 1;

    providing a display panel and a touch panel, wherein the display panel comprises a display drive integrated circuit (IC) and the touch panel comprises a touch controller IC;

    Step 2;

    forming a driving block on the display panel;

    Step 3;

    connecting the driving block via a lead wire to a sync signal output pin of the display drive IC;

    Step 4;

    forming a sensing block on the touch panel at a location exactly corresponding to the driving block so that the driving block and the sensing block form a capacitor C;

    Step 5;

    connecting the sensing block via a lead wire to a sync signal input pin of the touch controller IC; and

    Step 6;

    the display drive IC generating a sync signal in a horizontal blank interval or a vertical blank interval of the display panel and outputted through the sync signal output pin thereof to be sensed by the capacitor C to generate a sensing signal such that the sensing signal is transmitted to the touch controller IC to be sensed by a capacitor of the touch controller IC to obtain the sync signal.

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