公开(公告)号：US20240326468A1

公开(公告)日：2024-10-03

申请号：US18618545

申请日：2024-03-27

Applicant: ENJET CO. LTD.

Inventor： Do Young BYUN ,  Baek Hoon SEONG ,  Won-Il SON

IPC: B41J3/407 ,  B41J2/045 ,  B41J2/085 ,  B41J2/175 ,  B41J25/00 ,  C09D11/30

CPC classification number: B41J3/4073 ,  B41J2/04566 ,  B41J2/04593 ,  B41J2/085 ,  B41J2/17523 ,  B41J25/001 ,  C09D11/30

Abstract: The present disclosure relates to a 3D surface printing apparatus for the edge area of substrate, the apparatus including a jig part that erects the substrate and immobilizes it, a nozzle part that comprises a nozzle that ejects ink through Electrohydrodynamic (EHD) jetting by applying a voltage to an electrode, from above the erected substrate; a moving part that moves the nozzle left and right; and a control part that controls a printing operation, wherein the moving part prints a pattern that is continuously connected along a front surface of the rim of the substrate, a side surface of the substrate and a rear surface of the rim of the substrate as it horizontally moves the nozzle, and the control part controls the printing operation, considering changes in 3D electric field distribution.