Patent ID: 7799407

Claim:
A bank structure that partitions a pattern formation region in which a functional liquid is to be disposed and flow, the bank structure comprising: primary banks that define, when viewed in plan, a first pattern formation region and a second pattern formation region that is in communication with the first pattern formation region such that the functional liquid may flow therebetween, the second pattern formation region having a larger width than the first pattern formation region; and at least one secondary bank disposed entirely within the second pattern formation region, the at least one secondary bank being spaced apart from the primary banks and having a length and height that are less than a length and height of the primary banks, wherein the secondary bank regulates a flow direction of the functional liquid, and a partition width defined by a distance between the primary banks and the at least one secondary bank substantially orthogonal to the flow direction of the functional liquid that is regulated by the at least one secondary bank is less than ±20% of the width of the first pattern formation region.