Optical DVI cable, optical signal transmission equipment and optical signal transmission system which have the cable, and method of transmitting optical signal using the cable

An optical DVI cable comprising:

• a transmission side interface unit for attachment to a host device, said transmission side interface unit having a laser light emitting element unit and a driving circuit device to drive said laser light emitting unit, said laser light emitting element unit converting input electrical signals from the host device into optical signals and transmitting the optical signals;
• a reception side interface unit for attachment to a display device, said reception side interface unit having a light receiving element unit to receive the optical signals transmitted from said transmission side interface unit and an amplifier circuit device to amplify signals received by said light receiving element unit and transmit the amplified signals to the display device;
• a power converter unit disposed within one of said transmission side interface unit and said reception side interface unit, said power converter unit supplying DC power to at least one of said driving circuit and said amplifier circuit device;
• and
• a composite cable operably connected to transmit the optical signals from said transmission side interface unit to said reception side interface unit having one or more metal wires to supply power from said power converter unit via said reception side interface unit to said laser light emitting element unit of said transmission side interface unit and optical fibers to transmit said optical signals from said transmission side interface unit to said reception side interface unit.