Display device
A touch panel-equipped display device includes an electrostatic capacitance type touch panel and an organic EL display panel. The touch panel includes a transparent insulating substrate, a plurality of first electrodes formed on the substrate and extending at least in a first direction, a plurality of second electrodes formed on the substrate and extending at least in the second direction that intersects the first direction, and a plurality of wirings provided in a peripheral area of the substrate. The plurality of wirings are electrically connected to the first electrodes and the second electrodes respectively. The first electrodes include a first portion and a second portion. The second portion is formed on the same layer as that on which the second electrodes are formed. The first portion is formed on a layer different from that on which the second portion and the second electrodes are formed.
1 . A touch panel, comprising:
a plurality of first electrodes formed above a substrate, extending at least in a first direction,
a plurality of second electrodes formed above the substrate, extending at least in a second direction, wherein the first direction intersects the second direction,
wherein each of the plurality of the first electrodes comprises at least one first portion and at least one second portion,
wherein the at least one second portion is formed on a same layer as that on which the plurality of second electrodes are formed;
wherein the at least one first portion is positioned lower than the at least one second portion and the plurality of second electrodes;
wherein when viewed two-dimensionally, defined by the first direction and the second direction, the at least one first portion intersects with one of the plurality of the second electrodes, and the at least one second portion is spaced from the plurality of the second electrodes.
2 . The touch panel according to claim 1 , wherein the at least one first portion is formed using metal.
3 . The touch panel according to claim 2 , wherein the at least one second portion is formed using metal.
4 . The touch panel according to claim 3 , wherein the at least one first portion and the at least one second portion are formed using different materials.
5 . The touch panel according to claim 3 , wherein the at least one first portion and the at least one second portion are formed using a combination of same metal materials.
6 . The touch panel according to claim 1 , wherein the plurality of second electrodes are formed using metal.
7 . The touch panel according to claim 6 , wherein the at least one first portion and the plurality of second electrodes are formed using a same metal material.
8 . The touch panel according to claim 6 , wherein the at least one first portion and the plurality of second electrodes are formed using a combination of two metal materials.
9 . The touch panel according to claim 6 , wherein the at least one second portion and the plurality of second electrodes are formed using a same metal material.
10 . The touch panel according to claim 1 , the at least one first portion and the at least one second portion of each of the plurality of first electrodes are connect ed through a contact hole.
11 . The touch panel according to claim 10 , wherein the at least one first portion is formed on a layer lower than the contact hole.
12 . The touch panel according to claim 10 , wherein the contact hole is formed in an insulating film between the at least one first portion and the plurality of second electrodes.
13 . The touch panel according to claim 1 , wherein the plurality of the first electrodes align in parallel along the second direction at a predetermined alignment pitch.
14 . The touch panel according to claim 13 , wherein the plurality of the second electrodes align in parallel in the first direction at a predetermined alignment pitch.
15 . The touch panel according to claim 1 , further comprising a plurality of wirings provided in a peripheral area of the substrate, the plurality of wirings being electrically connected to the plurality of first electrodes and the plurality of second electrodes respectively.
16 . The touch panel according to claim 15 , wherein the at least one first portion and the plurality of wirings are formed using a same metal material.
17 . The touch panel according to claim 15 , wherein the first portions of the plurality of first electrodes are formed on the layer where the plurality of wirings are formed.
18 . The touch panel according to claim 15 , wherein each of the plurality of first and second electrodes has an end portion that connects to one of the plurality of wirings via a connection portion in an insulating film between the at least one first portion and the plurality of second electrodes.
19 . The touch panel according to claim 1 , wherein the substrate is transparent.
20 . The touch panel according to claim 1 , wherein the at least one first portion is formed on a layer lower than that on which the at least one second portion and the plurality of second electrodes are formed.
21 . A display device, comprising:
a display panel; and
a touch panel according to claim 1 .
22 . The display device according to claim 21 , wherein the touch panel is arranged above the display panel.
23 . The display device according to claim 22 , wherein the plurality of the first electrodes and the plurality of the second electrodes are arranged in an area opposed to a display area of the display panel where a plurality of pixels are arranged.
24 . The display device according claim 21 , wherein the display panel comprises an organic EL display panel.