Abstract: The present disclosure relates to a method of manufacturing an electrophoretic display device, the method including the steps of forming a plurality of partition walls defining unipixel regions on a first substrate; filling an electrophoretic medium in the unipixel regions; forming an adhesive layer on a second substrate to bond the first substrate to the second substrate; forming (i) a plurality of adhesive portions for contact with the partition walls and (ii) a plurality of hardening portions for sealing the unipixel region filled with the electrophoretic medium by hardening a part of the adhesive layer; and bonding the first substrate and the second substrate to each other.