Flexible substrate

1. A flexible substrate comprising:

a flexible insulating base; and

a plurality of wirings on the flexible insulating base, wherein

the flexible insulating base includes a first opening, a second opening having a shape different from that of the first opening, and a first line portion, and

the first line portion is disposed between the first opening and the second opening.

2. The flexible substrate of claim 1 , wherein

the first line portion does not overlap the plurality of wirings in a plan view.

3. The flexible substrate of claim 1 , wherein the plurality of wirings include:

a plurality of scan lines extending in a first direction and aligned in a second direction which is orthogonal to the first direction; and

a plurality of signal lines extending in the second direction and aligned in the first direction, wherein

the first opening and the second opening are included in an area defined by two adjacent scan lines of the plurality of scan lines and two adjacent signal lines of the plurality of signal lines.

4. The flexible substrate of claim 3 , further comprising an electrical element to which a scan signal is supplied from one of the plurality of scan lines, wherein

the electrical element is supported by an island part of the flexible insulating base positioned between the first opening and the second opening, and

an inorganic insulating layer is disposed between the electrical element and the flexible insulating base.

5. The flexible substrate of claim 1 , wherein

the first opening is defined by the first line portion and a first group of line portions of the flexible insulating base connecting with the first line portion,

the second opening is defined by the first line portion and a second group of line portions of the flexible insulating base connecting with the first line portion, and

the number of the line portions of the first group is different from the number of the line portions of the second group.

6. The flexible substrate of claim 1 , wherein the shape of the first opening has a rotation symmetry of four times or more.

7. The flexible substrate of claim 1 , wherein the first opening is defined by a plurality of line portions extending in four or more different directions.

8. The flexible substrate of claim 1 , wherein the first opening includes an interior angle of 180° or more.

9. The flexible substrate of claim 1 , further comprising an organic insulating layer overlapping the flexible insulating base, wherein

at least one of the wirings of the plurality of wirings include a first part disposed above the organic insulating layer and a second part disposed below the organic insulating layer, and

the first part and the second part are electrically connected through a contact hole provided with the organic insulating layer.

10. The flexible substrate of claim 1 , further comprising a support film supporting the flexible insulating base, wherein

the support film overlaps the first opening and the second opening in a plan view.

11. The flexible substrate of claim 1 , wherein

the flexible insulating base further includes a third opening shape of which is different from that of the first opening and the second opening.

12. The flexible substrate of claim 11 , wherein

the flexible insulating base further includes a second line portion disposed between the first opening and the third opening, and

the second line portion overlaps with at least one of the wirings of the plurality of wirings in a plan view.

13. A flexible substrate, comprising:

a flexible insulating base; and

a plurality of wirings on the flexible insulating base, wherein

the flexible insulating base includes a plurality of first openings and a plurality of second openings having a shape which is different from the first openings,

the first openings and the second openings are disposed alternatively, and

the flexible insulating base of linear shape is disposed between the first openings and the second openings.

14. The flexible substrate of claim 13 , wherein the plurality of wirings include:

a plurality of scan lines extending in a first direction and aligned in a second direction which is orthogonal to the first direction; and

a plurality of signal lines extending in the second direction and aligned in the first direction, wherein

one of the first openings and one of the second openings are included in an area defined by two adjacent scan lines of the plurality of scan lines and two adjacent signal lines of the plurality of the signal lines.

15. The flexible substrate of claim 14 , further comprising an electrical element to which a scan signal is supplied from one of the plurality of scan lines, wherein

the electrical element is supported by an island part of the flexible insulating base positioned between the first opening and the second opening, and

an inorganic insulating layer is disposed between the electrical element and the flexible insulating base.

16. The flexible substrate of claim 13 , wherein the shape of the first opening has a rotation symmetry of four times or more.

17. The flexible substrate of claim 13 , wherein the first opening is defined by a plurality of line portions extending in four or more different directions.

18. The flexible substrate of claim 13 , wherein the first opening includes an interior angle of 180° or more.

19. The flexible substrate of claim 13 , further comprising an organic insulating layer overlapping the flexible insulating base in a plan view, wherein

at least one of the wirings of the plurality of wirings include a first part disposed above the organic insulating layer and a second part disposed below the organic insulating layer, and

the first part and the second part are electrically connected through a contact hole provided with the organic insulating layer.

20. The flexible substrate of claim 13 , further comprising a support film supporting the flexible insulating base, wherein

the support film overlaps with the first opening and the second opening in a plan view.