公开(公告)号：US20220373852A1

公开(公告)日：2022-11-24

申请号：US17754012

申请日：2020-09-14

Applicant: LG INNOTEK CO., LTD.

Inventor： Jin Gyeong PARK ,  Byung Sook KIM ,  Moo Seong KIM ,  Jeung Ook PARK

IPC: G02F1/1676 ,  G02F1/167

Abstract: An electrophoretic particle according to an embodiment contains carbon black, and the electrophoretic particle comprises: a core portion; and a shell portion disposed to surround the outer surface of the core portion, wherein a protrusion portion is formed on the surface of the core portion, the core portion has a chromaticity index of 2 or less, the core portion has a light absorption rate of 90% to 99%, and the particle diameter of the electrophoretic particles is 50 nm to 800 nm.