The invention provides an optical interconnection circuit, of which a
signal transmission speed can be increased, and which can be easily
microminiaturized and manufactured, a manufacturing method thereof, an
electro-optical device including the circuit, and electronic equipment
including the circuit. An optical interconnection circuit includes: a
first micro tile element having a light emitting function; a second micro
tile element having a light receiving function; which are attached to a
substrate, and an optical wave-guide including an optical wave-guide
member formed on the substrate to connect at least the first micro tile
element and the second micro tile element each other.