Method for implementing structural color and electronic device comprising structural color

Abstract

According to various embodiments of the present disclosure, a method for implementing a structural color comprises: forming an oxide layer on at least a part of the surface of a metal substrate; coloring the oxide layer with a specified color, and sealing same; and etching at least a part of the surface of the oxide layer, wherein the etching operation may comprise dipping the metal substrate in a mixture solution of phosphoric acid and sulfuric acid.

Dependencies are inferred from the claim text.