An organic layer composition includes an aromatic ring compound, an additive including perfluoroalkyl in the structure, and a solvent, wherein a fluoro (F) group included in the additive is included in an amount of greater than 0 wt % and less than or equal to 30 wt % based on a total weight, 100 wt % of the additive, and a surface tension decrease rate of the additive measured according to Condition 1 is 0.1% to 30%. The definition of Condition 1 is the same as described in the specification.