Title:
INKJET PRINTING APPARATUS AND METHOD FOR INSPECTING INKJET HEAD USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/167172
Kind Code:
A1
Abstract:
Provided are an inkjet printing apparatus and a method for inspecting an inkjet head using same. The inkjet printing apparatus comprises: an inspection stage unit on which an inspection substrate is seated; an inkjet head unit including at least one inkjet head which ejects ink containing dipoles and a solvent in which the dipoles disperse, on the inspection stage unit; and a particle count inspection unit which is disposed so as to be spaced apart from the inkjet head unit in one direction. The particle count inspection unit comprises: a first heat treatment unit which is disposed on the top portion of the inspection stage unit; and a first sensing unit which is disposed on the bottom portion of the inspection stage unit and measures the number of dipoles sprayed onto the inspection substrate.
Inventors:
LEE BYUNG CHUL (KR)
JEONG HEUNG CHEOL (KR)
HUH MYUNG SOO (KR)
ROH CHEOL LAE (KR)
LEE DO HUN (KR)
JEONG HEUNG CHEOL (KR)
HUH MYUNG SOO (KR)
ROH CHEOL LAE (KR)
LEE DO HUN (KR)
Application Number:
PCT/KR2020/007171
Publication Date:
August 26, 2021
Filing Date:
June 02, 2020
Export Citation:
Assignee:
SAMSUNG DISPLAY CO LTD (KR)
International Classes:
B41J2/045; B41J2/175; B41J3/44; B41J3/46; C09D11/30
Foreign References:
| KR20060034870A | 2006-04-26 | |||
| JP2010036548A | 2010-02-18 | |||
| KR20090110176A | 2009-10-21 | |||
| JP4344270B2 | 2009-10-14 | |||
| US6422687B1 | 2002-07-23 |
Attorney, Agent or Firm:
KASAN IP & LAW FIRM (KR)
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