公开(公告)号：US20240042780A1

公开(公告)日：2024-02-08

申请号：US18138236

申请日：2023-04-24

Applicant: Samsung Display Co., LTD.

Inventor： Sang Jin LEE ,  Hong Gi MIN ,  Sang Hyoung RYU ,  Myung Soo HUH

IPC: B41J29/393

CPC classification number: B41J29/393 ,  B41J2029/3935

Abstract: An ink-jet printing apparatus includes an ink-jet head unit including an ink-jet head, and a control device which controls an ink ejection timing of the ink-jet head and includes a comparator comparing first printing pattern information that is stored and second printing pattern information that is input with each other, a control signal generator generating a first head control signal based on the first printing pattern information when a difference between the first printing pattern information and the second printing pattern information is a reference value or less and generating a second head control signal different from the first head control signal based on the second printing pattern information when the difference between the first printing pattern information and the second printing pattern information exceeds the reference value, and a data output unit providing the first head control signal or the second head control signal to the ink-jet head unit.