US 11,951,741 B2
Inkjet printing apparatus
Sang Hyung Lim, Cheonan-si (KR); and Soon Mi Choi, Cheonan-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Sep. 8, 2021, as Appl. No. 17/447,180.
Claims priority of application No. 10-2020-0131945 (KR), filed on Oct. 13, 2020.
Prior Publication US 2022/0111646 A1, Apr. 14, 2022
Int. Cl. B41J 2/14 (2006.01)
CPC B41J 2/1433 (2013.01) 10 Claims
OG exemplary drawing
 
1. An inkjet printing apparatus, comprising:
a stage; and
an inkjet head over the stage and comprising a plurality of nozzles through which ink comprising a plurality of particles is discharged,
wherein the inkjet head comprises:
a base portion constituting a main body of the inkjet head;
a discharge portion adjacent to the base portion and comprising the plurality of nozzles; and
an inner flow path between the base portion and the discharge portion and configured to accommodate the ink, and
wherein the base portion comprises a first surface contacting the inner flow path, and at least a portion of the first surface is at an incline, and
wherein an entire surface of the inner flow path that adjoins the discharge portion is substantially flat.