Patent ID: 7978297

Claim:
An electro-optical device comprising: a substrate; a signal generator external to the substrate for generating a pair of differential signals; at least a pair of wiring lines formed on the substrate, the pair of wiring lines including a first wiring line and a second wiring line extending parallel to each other on the substrate in a first extending direction; an IC mounted on the substrate and electrically connected to the pair of wiring lines, the first wiring line being connected to the signal generator and being configured to transmit a first differential signal of the pair of differential signals to the IC, and the second wiring line being connected to the signal generator and being configured to transmit a second differential signal of the pair of differential signals to the IC, the second differential signal being the inverse of the first differential signal; and a resistor connected between of the first and second wiring lines, wherein the resistor includes: a first wiring path connected to both the first and second wiring lines and extending from the first wiring line to the second wiring line in a second extending direction, substantially perpendicular to the first extending direction, a second wiring path that has U-shape and connected on a first side of the first wiring path, with respect to the second extending direction, so that an open side of the U-shape is entirely closed by the first wiring path, and a third wiring path that has U-shape and connected on a second side of the first wiring path, opposed to the first side of the first wiring path, with respect to the second extending direction, so that an open side of the U-shape is entirely closed by the first wiring path.