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Touch display panel, method for driving the same and touch display apparatus that is capable of providing a double-sided touch mode

  • US 10,268,307 B2
  • Filed: 07/09/2015
  • Issued: 04/23/2019
  • Est. Priority Date: 12/16/2014
  • Status: Active Grant
First Claim
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1. A touch display panel, comprising:

  • an array substrate and a cell alignment substrate arranged oppositely, a touch driving electrode, a first touch sensitive electrode and a second touch sensitive electrode;

    wherein the first touch sensitive electrode is on the cell alignment substrate, and the second touch sensitive electrode is on the array substrate, the touch driving electrode is between the first touch sensitive electrode and the second touch sensitive electrode;

    mutual capacitances are generated between the touch driving electrode with each of the first touch sensitive electrode and the second touch sensitive electrode;

    wherein each of the array substrate and the cell alignment substrate comprises a base substrate;

    the touch driving electrode is on a side of the base substrate of the array substrate facing toward the cell alignment substrate;

    the first touch sensitive electrode is on a side of the base substrate of the cell alignment substrate facing toward the array substrate or facing away from the array substrate;

    the second touch sensitive electrode is on the side of the base substrate of the array substrate facing toward the cell alignment substrate or a side of the base substrate of the array substrate facing away from the cell alignment substrate;

    wherein the array substrate further comprises a common electrode;

    the touch driving electrode comprises a first touch driving electrode;

    the first touch driving electrode and the common electrode are made of a same material and arranged in a same layer;

    wherein the touch driving electrode further comprises a second touch driving electrode;

    the second touch driving electrode is in a different layer from the first touch driving electrode;

    one of the mutual capacitances is generated between the first touch driving electrode and the first touch sensitive electrode; and

    an other one of the mutual capacitances is generated between the second touch driving electrode and the second touch sensitive electrode; and

    wherein the array substrate further comprises a thin film transistor;

    the second touch driving electrode is a shutter bar between the thin film transistor and the base substrate of the array substrate and configured for shielding a channel of the thin film transistor.

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