Electronic device
To realize a stretchable electronic device having high reliability. The configuration of the present invention is as follows. In a stretchable electronic device in which an active area and a terminal area are continuously formed, a scanning line having a meander structure and a signal line having a meander structure are formed in the active area, terminal wirings and terminals are formed on a base material extending in a second direction and aligned in a first direction in the terminal area, and the base material configures a reinforcing material continuous in the first direction in the part where the terminal is formed.
1 . An electronic device comprising:
a base material that has a meander structural part and an element area part;
a wiring that is positioned at the meander structural part; and
an element that is positioned at the element area part and connected to the wiring,
wherein the electronic device has an active area and a terminal area,
in the active area, a plurality of element area parts is provided, and the meander structural part is formed so as to connect the element area parts to each other,
a plurality of terminals aligned in a first direction is formed in the terminal area,
the base material has a connecting part in the terminal area,
the plurality of terminals is positioned at the connecting part,
the connecting part is continuously formed in the first direction and configured to control a Young's modulus of the terminal area in the first direction so as to reduce stress caused by a difference in stretchability between the electronic device and an external flexible wiring substrate.
2 . The electronic device according to claim 1 ,
wherein the width of the connecting part in a second direction intersecting the first direction is the same as that of the terminal in the second direction.
3 . The electronic device according to claim 1 ,
wherein the width of the connecting part in a second direction intersecting the first direction is smaller than that of the terminal in the second direction.
4 . The electronic device according to claim 1 ,
wherein the base material is formed of polyimide.
5 . The electronic device according to claim 1 ,
wherein the connecting part has an insulating layer positioned between the plurality of terminals, and
the insulating layer is formed of a material different from the base material.
6 . The electronic device according to claim 5 ,
wherein the thickness of the insulating layer is smaller than that of the base material.
7 . The electronic device according to claim 5 ,
wherein a Young's modulus of the insulating layer is larger than that of the base material.
8 . The electronic device according to claim 5 ,
wherein the width of the insulating layer in a second direction intersecting the first direction is the same as that of each of the plurality of terminals in the second direction.
9 . The electronic device according to claim 1 ,
wherein the plurality of terminals has a first line aligned in the first direction and a second line separated in a second direction intersecting the first line and the first direction.
10 . An electronic device in which an active area and a terminal area are continuously formed, the device comprising:
a base material that has a meander structural part and an element area part;
a wiring that is positioned at the meander structural part; and
an element that is positioned at the element area part and connected to the wiring,
wherein in the active area, a plurality of element area parts is provided, and the meander structural part is formed so as to connect the element area parts to each other,
a plurality of terminals aligned in a first direction is formed in the terminal area,
the plurality of terminals is formed on one surface of the base material,
on the other surface of the base material, a connecting part is formed in parts corresponding to the plurality of terminals,
the connecting part being formed of a material having a Young's modulus larger than that of the base material and configured to control a mechanical property of the terminal area in the first direction.
11 . The electronic device according to claim 10 ,
wherein the thickness of the connecting part is smaller than that of the base material.
12 . The electronic device according to claim 10 ,
wherein the width of the connecting part in a second direction intersecting the first direction is the same as that of each of the plurality of terminals.
13 . The electronic device according to claim 10 ,
wherein the connecting part is metal.
14 . The electronic device according to claim 10 ,
wherein the connecting part is indium tin oxide.
15 . The electronic device according to claim 10 ,
wherein the connecting part is an inorganic insulating film.