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US 12,594,760 B2Granted
Nozzle and printing device including same
AssigneeSamsung Display Co., Ltd.
InventorsChan Hae Hwang, Minkyu Shin, Tae-Ho Youn
Life of this patent
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Abstract
A nozzle according to an embodiment includes: a metal portion, which defines a penetration hole therein; and a ceramic portion, which surrounds the metal portion, where the metal portion includes a first region and a second region having a narrower diameter than the first region, the ceramic portion surrounds the second region, and an end of the metal portion close to a discharging end of the nozzle is spaced apart from an end of the ceramic portion close to the discharging end.
Claims16
A nozzle comprising:
- a metal portion, which defines a penetration hole therein;
- and
- a ceramic portion, which surrounds the metal portion,
- wherein the metal portion includes a first region and a second region having a narrower diameter than the first region,
- the ceramic portion surrounds the second region, and
- an end of the metal portion close to a discharging end of the nozzle is spaced apart from an end of the ceramic portion close to the discharging end,
- wherein the ceramic portion defines a first groove having a diameter corresponding to an outer diameter of the second region of the metal portion and a second groove having a narrower diameter than the first groove,
- wherein the second groove is disposed at the discharging end of the nozzle, and
- wherein the second groove does not overlap the metal portion in a view perpendicular to a central axis direction of the nozzle.
6 more elements
A printing device comprising:
- a nozzle;
- and
- a power supply, which applies a voltage to the nozzle,
- wherein the nozzle comprises:
- a metal portion defining a penetration hole therein, and
- a ceramic portion, which surrounds the metal portion,
- wherein the metal portion includes a first region and a second region having a narrower diameter than the first region,
- the ceramic portion surrounds the second region, and
- an end of the metal portion close to a discharging end of the nozzle is separated from an end of the ceramic portion close to the discharging end,
- wherein the ceramic portion defines a first groove with a diameter corresponding to an outer diameter of the second region of the metal portion and a second groove with a narrower diameter than the first groove,
- wherein the second groove is disposed at the discharging end of the nozzle, and
- wherein the second groove does not overlap the metal portion in a view perpendicular to a central axis direction of the nozzle.
9 more elements
Dependencies are inferred from the claim text.