公开(公告)号：US20250091318A1

公开(公告)日：2025-03-20

申请号：US18567540

申请日：2023-07-24

Applicant: TORAY ADVANCED MATERIALS KOREA INC.

Inventor： Sang Woo JIN ,  Jun Woo PARK ,  Ji Whan OH

IPC: F21V8/00

Abstract: A color conversion sheet according to the present invention includes a first wavelength conversion layer in which an organic phosphor is dispersed in a resin matrix, a first phosphor diffusion barrier layer positioned on one surface of the first wavelength conversion layer, and an adhesive layer positioned on one surface of the first phosphor diffusion barrier layer, wherein a Hildebrand solubility parameter of the first phosphor diffusion barrier layer satisfies a predetermined relationship between a Hildebrand solubility parameter of the resin matrix of the first wavelength conversion layer and a Hildebrand solubility parameter of a solvent contained in the first phosphor diffusion barrier layer, thereby resolving problems of changes in luminance characteristics and color change.