Touch display device
View Patent ↗A display device with a touch panel includes a display panel, and an electrostatic-capacitance-coupling touch panel which is arranged on a viewer-side surface of the display panel. The touch panel includes a substrate; a first shield conductor which is formed on the viewer-side surface of the substrate; an insulation film which is formed on the first shield conductor; a plurality of first electrodes which are formed on the insulation film, extend in the first direction and are arranged parallel to each other in the second direction which intersects with the first direction; and a plurality of second electrodes which are formed on the insulation film, extend in the second direction and are arranged parallel to each other in the first direction which intersects with the second direction. A predetermined signal is inputted to the first shield conductor.
1. A display device with a touch panel comprising:
a display panel; and
an electrostatic-capacitance-coupling touch panel which is arranged on a viewer-side surface of the display panel, wherein the touch panel includes:
a substrate;
a first shield conductor which is formed on the viewer-side surface of the substrate; an insulation film which is formed on the first shield conductor;
a plurality of first electrodes which are formed on the insulation film, extend in a first direction and are arranged parallel to each other in a second direction which intersects with the first direction; and
a plurality of second electrodes which are formed on the insulation film, extend in the second direction and are arranged parallel to each other in the first direction which intersects with the second direction, wherein
a predetermined signal is inputted to the first shield conductor,
each one of the plurality of first electrodes includes a first portion which is formed on the viewer-side surface of the substrate and the second portion which is formed in a separated manner from the second electrode on the insulation film,
the first portion is connected to the second portion via a contact hole formed in the insulation film,
the first shield conductor has a plurality of opening portions,
the plurality of opening portions include first opening portions in which the first portions are formed in openings and second opening portions in which the first portions are not formed in the openings, and
the first portions are formed in the first opening portions.
2. A display device with a touch panel according to claim 1 , wherein the first shield conductor has a meshed shape constituted of first members and second members which intersect with each other, and
the first opening portions and the second opening portions are respectively opening portions which are formed by the first members and the second members which constitute the meshed shape.
3. A display device with a touch panel according to claim 2 , wherein the second electrode has first portions which intersect with the first portions of the first electrode in plane and second portions which are contiguously formed with the first portions, the second portion of the first electrode has a planar square shape in which a width of the second portion of the first electrode is larger than a width of the first portion of the first electrode,
the second portion of the second electrode has a planar square shape in which a width of the second portion of the second electrode is larger than a width of the first portion of the second electrode,
the second portion of the first electrode and the second portion of the second electrode are arranged in a state where a side of the second portion of the first electrode and a side of the second portion of the second electrode which face each other in an opposed manner make an acute angle with respect to the first direction, and
the first member and the second member of the first shield conductor which constitute the meshed shape are formed along the side of the second portion of the first electrode and the side of the second portion of the second electrode which face each other in an opposed manner.
4. A display device with a touch panel according to claim 3 , wherein at least one of the first members and at least one of the second members of the first shield conductor which constitute the meshed shape are arranged between the first portions of two first electrodes arranged adjacent to each other.
5. A display device with a touch panel according to claim 1 , wherein the display device further includes a plurality of lines which are formed around a region where the plurality of first electrodes and the plurality of second electrodes are formed, and are electrically connected to the plurality of first electrodes or the plurality of second electrodes respectively,
the plurality of lines are formed on the viewer-side surface of the substrate, and
the display device further includes a second shield conductor which is formed on the insulation film so as to cover the plurality of lines, and to which a predetermined signal is inputted.
6. A display device with a touch panel according to claim 5 , wherein the touch panel further includes a protective film which is formed on the plurality of first electrodes and the plurality of second electrodes.
7. A display device with a touch panel according to claim 6 , wherein the touch panel has a front panel formed on the protective film.
8. A display device with a touch panel according to claim 1 , wherein the plurality of first electrodes and the plurality of second electrodes are formed of a transparent conductive film.