公开(公告)号：US20250051952A1

公开(公告)日：2025-02-13

申请号：US18925542

申请日：2024-10-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyunghwan SONG ,  Youngchun KIM ,  Inkyu KIM ,  Kidoc SON ,  Yurim SONG ,  Hyuckki LEE ,  Yongduk KWON ,  Goeun KIM ,  Jongbo KIM ,  Byounggyu PARK ,  Sungyoung HEO ,  Hyunsuk CHOI

IPC: C25D11/02 ,  H05K5/04

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.