公开(公告)号：US20200255565A1

公开(公告)日：2020-08-13

申请号：US15776257

申请日：2016-12-09

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Seo Hyun JUNG ,  Jong Mok PARK ,  Ho Youl KONG ,  Ja Young BAE

IPC: C08F212/12 ,  G01N21/81 ,  G02F1/361 ,  C08F220/54

Abstract: A photonic crystal structure employs such a structure that two layers having different refractive indices are laminated alternately, a polymer including a structure unit derived from a monomer that contains a fluorocarbon group being used for one of the repeated layers such that the photonic crystal structure can respond to humidity and/or organic solvent concentration. Using the photonic crystal structure, it is possible to manufacture a color-conversion photonic crystal sensor having excellent sensitivity and reproduction characteristics.

公开(公告)号：US20200225391A1

公开(公告)日：2020-07-16

申请号：US16475539

申请日：2018-01-03

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Seo Hyun JUNG ,  Jong Mok PARK ,  Ho Youl KONG ,  Ja Young BAE

IPC: G02B5/28 ,  C03C17/34 ,  C08J5/18 ,  C08L39/06 ,  C08L33/02 ,  C08L39/04 ,  C08L25/16 ,  C08L33/26 ,  G02B1/00 ,  B42D25/36

Abstract: An anti-forgery color conversion film includes a photonic crystal structure whose color is converted by an external stimulus such as a breath. The photonic crystal structure includes a first refractive index layer including a first polymer exhibiting a first refractive index; and a second refractive index layer which is alternately laminated with the first refractive index layer and includes a second polymer exhibiting a second refractive index. A consumer who purchases an article including the color conversion film may easily distinguish the authenticity of the article.