Patent ID: 7456701

Claim:
A flexible substrate, on which a device is mounted, comprising: a first part provided with a first device; a second part provided with a second device; and a wiring part placed between the first part and the second part and including a plurality of wirings for coupling the first device and the second device; the first device including at least a first data transfer control unit, the second device including at least a second data transfer control unit, the first data transfer control unit and the second data transfer control unit transferring data by using a differential signal, and the plurality of wirings included in the wiring part for coupling the first device and the second device including at least one differential signal line pair for transferring data by using a differential signal, wherein the plurality of wirings include the differential signal line pair in a plural number, assuming that a direction in which the plurality of wirings for coupling the first device and the second device extend is a first direction, an insulator extends in the first direction in the wiring part, the plurality of wirings are provided on the insulator, a second conductor extends in the first direction between the differential signal line pair provided in a plural number on the insulator, and a plurality of signal lines other than the first differential signal line and the second differential signal line included in the differential signal line pair are provided below the insulator on a side the plurality of wirings are not provided.