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Touch display panel with near field communication antenna circuit

  • US 10,528,176 B2
  • Filed: 07/08/2016
  • Issued: 01/07/2020
  • Est. Priority Date: 10/13/2015
  • Status: Active Grant
First Claim
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1. A touch display panel, comprising:

  • a display region which is provided with a touch circuit; and

    a non-display region which is provided with a near field communication (NFC) antenna circuit and a control circuit;

    wherein;

    the NFC antenna circuit includes at least one coil, a first connecting line connected with one end of the coil and a second connecting line connected with another end of the coil; and

    the first connecting line and the second connecting line are connected with the control circuit, and the first connecting line and the second connecting line are connected or disconnected with each other under control of the control circuit,the touch display panel further comprises a touch extension circuit disposed in the non-display region, wherein;

    the touch extension circuit includes at least one sensing electrode piece, at least one driving electrode piece, a third connecting line connected with the sensing electrode piece, and a fourth connecting line connected with the driving electrode piece;

    the sensing electrode piece and the driving electrode piece are arranged in a same first layer and insulated from each other, the sensing electrode piece is electrically connected with the coil through the third connecting line, the driving electrode piece is connected with the control circuit through the fourth connecting line, and the control circuit is configured to control operation of the driving electrode piece.

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