The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2025
Filed:
Sep. 14, 2020
Applicant:
Lg Innotek Co., Ltd., Seoul, KR;
Inventors:
Jin Gyeong Park, Seoul, KR;
Byung Sook Kim, Seoul, KR;
Moo Seong Kim, Seoul, KR;
Jeung Ook Park, Seoul, KR;
Assignee:
LG INNOTEK CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/167 (2019.01); G02F 1/1676 (2019.01); G02F 1/1675 (2019.01);
U.S. Cl.
CPC ...
G02F 1/1676 (2019.01); G02F 1/167 (2013.01); G02F 2001/1678 (2013.01);
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.