公开(公告)号：US20250074049A1

公开(公告)日：2025-03-06

申请号：US18820723

申请日：2024-08-30

Applicant: Samsung Display Co., LTD.

Inventor： SATOSHI TOMOEDA ,  Setsu Takeuchi ,  JONGKIL HAN ,  MYUNGSOO HUH

IPC: B41J2/045

Abstract: A method of inkjet printing includes applying a driving signal to a head through a controller, the head including nozzles, driving the head in response to the driving signal, and applying a first control signal that changes a driving waveform of the driving signal to the head through the controller.

公开(公告)号：US20200230738A1

公开(公告)日：2020-07-23

申请号：US16746563

申请日：2020-01-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SEUNGHWAN JUNG ,  SEOKHWAN KIM ,  SANGHYUN JUNG ,  WOODONG KIM ,  JAEIL KIM ,  IIYOUNG JEONG ,  JONGKIL HAN

IPC: B23K26/03 ,  B23K26/08 ,  B23K37/04 ,  B23K26/04 ,  G05B19/402

Abstract: An apparatus for laser machining is provided including a stage for supporting a substrate and a controller for generating an error compensation table, a motor driver for moving the stage, and an error compensation unit for generating a table to compensate for an error. The error compensation unit includes a grid plate disposed on the stage and an imaging unit for imaging the grid plate. The motor driver outputs a position synchronization signal to the imaging unit according to a position of the stage. The imaging unit receives the position synchronization signal from the motor driver and images the grid plate while moving the stage.