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Display device with touch panel having X, Y and dummy electrodes

  • US 9,983,730 B2
  • Filed: 08/11/2017
  • Issued: 05/29/2018
  • Est. Priority Date: 08/06/2008
  • Status: Active Grant
First Claim
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1. An electrostatic capacitive type touch panel comprising:

  • a substrate including a pair of long sides and a pair of short sides;

    a plurality of X electrodes and a plurality of Y electrodes intersecting with the X electrodes formed on the substrate,a first signal line having a first portion which extends along at least one of the short and long sides of the electrostatic capacitive type touch panel supplying signals to the X electrodes;

    a second signal line having a first portion which extends along at least one of the short and long sides of the electrostatic capacitive type touch panel supplying signals to the Y electrodes;

    a plurality of first connection terminals of the first portion of the first signal line and the second signal line;

    a flexible printed circuit board having a second portion of the first and the second signal line, a plurality of second connection terminals, and a plurality of third connection terminals,wherein the second connection terminal is electrically connected with the third connection terminal respectively by the second portion,wherein the plurality of second connection terminals is disposed above the plurality of first connection terminal and electrically connected with the plurality of first connection terminals respectively,wherein the flexible printed circuit board has a plurality of intersecting lines of the second portion,wherein the flexible printed circuit board has a plurality of conductive layers which includes second portion of the first signal line and the second signal line, and are electrically connected to each other by a through hole which is formed at an end portion of the intersecting lines,wherein the X electrode and the Y electrode are made of a conductive layer,wherein the substrate has a floating electrode which is made of the conductive layer of the X electrode and the Y electrode, andwherein the first portion of the first signal line and the second signal line are made of a metal layer.

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