US Patent 7179520 Circuit substrate, electro-optic device and electronic equipment

A circuit substrate is described where the circuit substrate has a first wiring group extending in a first direction and a second wiring group extending in a second direction substantially orthogonal to the first direction. The first wiring group of the circuit substrate is stronger than the second wiring group, and the second wiring group bends more easily than the first wiring group, which results in directional flexibility of said circuit substrate.