Display device

摘要

The electrostatic capacity coupling type touch panel includes X electrodes (XP) and Y electrodes (YP) which intersect each other via a first insulating layer, and a plurality of Z electrodes in floating states to each other via a second insulating layer. For the second insulating layer, a material which changes in thickness by pressing of touch is used. The Z electrode is disposed so as to overlap both an X electrode and a Y electrode which are adjacent to each other. In a pad part of the X electrode, an area is larger toward the center of the X electrode and an area is smaller toward the center of the adjacent X electrode. Therefore, the nonconductive input means can be used, and highly accurate position detection is realized with a small number of electrodes even when a touch area is small.

主权项

1. A display device having an electrostatic capacity touch panel for detecting touch position coordinates in a display region by an electrostatic capacity coupling method, wherein the electrostatic capacity touch panel comprises:
a plurality of X electrodes which extend in a first direction in a first plane, wherein each of the X electrodes is formed by thin line parts and pad parts which are alternately arranged in the first direction; a plurality of Y electrodes which extend in a second direction, which intersects the first direction, in a second plane, wherein each of the Y electrodes is formed by thin line parts and pad parts which are alternately arranged in the second direction; a plurality of Z electrodes which are in a third plane, and are at an electrically floating state with respect to each other; a first insulating layer which is located between the first plane and the second plane; and a second insulating layer which is located between the second plane and the third plane; wherein the first, second and third planes are planes different from one another; wherein each of the plurality of X electrodes and each of the plurality of Y electrodes intersect each other via the first insulating layer; wherein the pad part of the each of the plurality of X electrodes and the pad part of the each of the plurality of Y electrodes are disposed without overlapping each other in plan view; wherein each of the plurality of Z electrodes overlaps both an X electrode and a Y electrode which are adjacent to each other in plan view; and wherein a difference between a combined capacity between the X electrode and the Y electrode during a touch operation of the electrostatic capacity touch panel, and during a no touch operation of the electrostatic capacity touch panel, corresponds to a difference between a serially connected capacity of: a capacity between the Z electrode and the X electrode, and a capacity between the Z electrode and the Y electrode.