Flat cable and electronic appliance having the same

An electronic appliance comprising:

• a first electronic component;
• a second electronic component to transmit and receive signals to/from the first electronic component;
• and
• a flat cable to interconnect the first and second electronic components to enable the signals to be transmitted and received between the first and second electronic components,
• wherein the flat cable includes:
• a first signal transmission layer including a first insulating member, and a plurality of first ground lines and a plurality of first signal lines embedded in a row within the first insulating member;
• a second signal transmission layer including a second insulating member, and a plurality of second ground lines and a plurality of second signal lines embedded in a row within the second insulating member;
• and
• an insulating layer interposed between the first signal transmission layer and the second signal transmission layer,
• wherein the first and second signal transmission layers are coupled with both sides of the insulating layer, respectively, to face each other, each of the first ground lines and each of the second ground lines are arranged to face each other, and each of the first signal lines and each of the second signal lines are arranged to face each other.

A flat cable to connect two electrical components, comprising:

• a first insulating member including a first group of ground lines and signal lines disposed therein;
• a second insulating member including a second group of ground lines and signal lines disposed therein;
• and
• an insulating layer disposed between the first insulating member and the second insulating member, the insulating layer having an adhesive property to adhere to a side of each of the first insulating member and the second insulating member and having a thickness such that a differential impedance of the flat cable is the same as that of the two electrical components in which the flat cable connects.