Flexible substrate

An apparatus comprising:

• a first device;
• a second device;
• and
• a flexible circuit board connecting the first device and the second device, the flexible circuit board comprising:
• a base material comprising a flexible material having a first end adapted to connect with the first device, a second end adapted to connect with the second device, and a cutout arranged between the first end and the second end, the cutout being formed by removing a portion of the flexible material;
• a signal line arranged on a surface of the base material, the signal line being capable of electrically connecting the first device and the second device;
• and
• a part of a DC line arranged over the cutout so that the part of the DC line is out of contact with the base material, another part of the DC line arranged on the base material, and the DC line being capable of electrically connecting the first device and the second device.

A flexible circuit board for connecting a first device and a second device, comprising:

• a flexible base material at opposite ends of which the first device and the second device are connected, the flexible material having a narrow section between the opposite ends formed by partially removing a portion of the flexible base material;
• a signal line continuously formed on a surface of the flexible base material to electrically connect the first device and the second device, the signal line being formed on the flexible base material in the narrow section;
• and
• an additional line partially formed on the flexible base material to electrically connect the first device and the second device, the additional line being partially formed outside the flexible base material so as to be out of contact with the flexible base material in the narrow section.

A flexible circuit board comprising:

• a flexible substrate having a narrow section provided between a first end and a second end of the flexible substrate, the flexible substrate including a flexible material;
• a wiring line arranged on a surface of the flexible material via the narrow section;
• and
• another wiring line arranged at a position outside of the narrow section and having a first portion arranged on the surface of the flexible material between the first end and the second end, another portion of the another wiring line being arranged out of contact with the flexible substrate.