Example 5
In Fabrication method examples 1 to 4, the structure body provided with the uneven structure in the depression is used; however, one embodiment of the present invention is not limited thereto. For example, a structure body not provided with an uneven structure in a depression may be used. In that case, after the battery unit 120 is covered with the member 109 with rubber elasticity whose surface is flat, the member 109 with rubber elasticity can be shaved with a sharp cutter or the like to form an uneven structure. The uneven structure can be formed with a hot-wire cutter or an ultrasonic cutter, for example.
As described above, the fabrication method described in this embodiment allows the battery unit or the light-emitting unit to be covered with the member with rubber elasticity. This can suppress entry of impurities such as moisture from the air, increasing the reliability of a device. Furthermore, a device that is not easily broken even after being repeatedly bent and stretched can be fabricated.
This embodiment can be combined with any of the other embodiments as appropriate.
