Object To provide a liquid droplet ejecting apparatus capable of forming a pattern from ejected liquid droplets with high accuracy and enhancing throughput, a liquid droplet ejecting system, an electro-optical device, a method of manufacturing an electro-optical device, a method of forming a metal wiring line, and an electronic apparatus. Furthermore, the inner region of the corner structure may be filled with a pattern indicating the type of material layer in which the corner structure is formed. The snap ring includes one or more grounding tangs cantilevered from its outer circumference and a locking tang lanced from each grounding tang. The male side andor female side may be provided with a trough positioned opposite the hinge to reduce overflow of the coloring agent, and can be provided with a well positioned near the hinge to allow the hair to more readily distribute itself when folded over. The at least one tocotrienol includes at least one of \u03b1-tocotrienol, \u03b2-tocotrienol, \u03b3-tocotrienol, or \u03b4-tocotrienol and is preferably substantially tocopherol-free.