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公开(公告)号：US20230047796A1
公开(公告)日：2023-02-16
申请号：US17786931
申请日：2020-06-05
Applicant: Samsung Display Co., LTD.
Inventor： An Na RYU , Jin Oh KWAG , Heung Cheol JEONG
Abstract: An inkjet printing device includes a stage; an inkjet head disposed above the stage and comprising nozzles through which ink is discharged, the ink including bipolar elements extending in a direction; an ink circulation part which supplies the ink to the inkjet head, and to which the ink remaining after being discharged from the inkjet head is supplied; and at least one sensing part disposed between the inkjet head and the ink circulation part and sensing a number of the bipolar elements that are discharged through the nozzles.
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公开(公告)号：US20220080725A1
公开(公告)日：2022-03-17
申请号：US17420438
申请日：2019-03-13
Applicant: Samsung Display Co., LTD.
Inventor： Byung Chul LEE , Heung Cheol JEONG , Myung Soo HUH , Min Soo KIM , Jae Ha LIM
IPC: B41J2/045
Abstract: An inkjet printing device includes a stage part including a stage, an inkjet head part including at least one inkjet head that disposes an ink on the stage, the ink including dipoles and a solvent having the dipoles, a heat treatment device that removes the solvent, a first sensing part that measures a position of the ink disposed on the stage, a second sensing part that measures a position of the inkjet head, and a third sensing part that measures a position of each of the dipoles disposed on the stage. A dipole aligning method includes disposing an ink on a substrate, the ink including dipoles and a solvent having the dipoles, generating an electric field on the substrate and disposing the dipoles on the substrate by the electric field, removing the solvent, and measuring a position of each of the dipoles disposed on the substrate.
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公开(公告)号：US20230150277A1
公开(公告)日：2023-05-18
申请号：US17920538
申请日：2021-04-01
Applicant: Samsung Display Co., LTD.
Inventor： Byung Chul LEE , Heung Cheol JEONG , Myung Soo HUH , Jin Oh KWAG
IPC: B41J11/00
CPC classification number: B41J11/00216
Abstract: Provided are an inkjet printing apparatus and a printing method of a bipolar element by using the inkjet printing apparatus. The inkjet printing apparatus includes: a stage that moves in a first direction; an inkjet device that sprays ink on the stage; a. plurality of electric field generating devices that generate an electric field on the stage, are spaced apart from the stage, and are movable in the first direction independently from the stage; a light irradiation device that irradiates the stage with light; and a drying device that dries the ink sprayed on the stage, wherein the inkjet device, the light irradiation device, and the drying device are arranged along the first direction,
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Patent Agency Ranking
4.发明申请公开(公告)号：US20210336142A1
公开(公告)日：2021-10-28
申请号：US17278126
申请日：2019-04-08
Applicant: Samsung Display Co., LTD.
Inventor： Heung Cheol JEONG , Byung Chul LEE , Myung Soo HUH , Jin Oh KWAG , Do Hun LEE
IPC: H01L51/00
Abstract: An inkjet printing apparatus, a dipole alignment method, and a display device manufacturing method are provided. The inkjet printing apparatus includes a stage, a print head part disposed above the stage, and an electric field generating part that provides an electric field to a space between the stage and the print head part. The dipole alignment method includes providing an electric field at an area above a target substrate, spraying ink including a dipole onto the target substrate through the area, and landing the dipole on the target substrate. The display device manufacturing method includes preparing a base layer on which first and second electrodes are disposed, spraying ink including a light emitting element onto the base layer through the area, landing the light emitting element between the first and second electrodes.
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公开(公告)号：US20230286292A1
公开(公告)日：2023-09-14
申请号：US18013633
申请日：2021-06-04
Applicant: Samsung Display Co., LTD.
Inventor： Byung Chul LEE , Heung Cheol JEONG , Myung Soo HUH , Jin Oh KWAG , Do Hun LEE
IPC: B41J11/00
CPC classification number: B41J11/0015 , B41J11/005
Abstract: An inkjet printing apparatus includes: an airflow stage extending in a first direction; a print head unit disposed above the airflow stage; and an electric field generating unit that moves in the first direction and generates electric field above the airflow stage.
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公开(公告)号：US20230055700A1
公开(公告)日：2023-02-23
申请号：US17904370
申请日：2020-06-02
Applicant: Samsung Display Co., LTD.
Inventor： Byung Chul LEE , Heung Cheol JEONG , Myung Soo HUH , Cheol Lae ROH , Do Hun LEE
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 that ejects ink containing dipoles and a solvent in which the dipoles disperse, on the inspection stage unit; and a particle count inspection unit that is located 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 that is located on the top portion of the inspection stage unit; and a first sensing unit that is located on the bottom portion of the inspection stage unit and measures the number of dipoles sprayed onto the inspection substrate.
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公开(公告)号：US20210300026A1
公开(公告)日：2021-09-30
申请号：US17150521
申请日：2021-01-15
Applicant: Samsung Display Co., LTD.
Inventor： Futoshi YOSHIDA , Cheong Wan MIN , Min A HAN , Jae Bum PAHK , Jeong Ho YI , Heung Cheol JEONG , Myung Soo HUH
Abstract: An inkjet print apparatus includes a print head discharging ink onto a substrate, the print head including a first heater; a reservoir storing the ink; a first pipe supplying the ink to the reservoir; a second pipe collecting surplus ink; a mixing unit located on the first pipe and mixing the ink; a pump located on the second pipe and pressurizing and supplying the surplus ink to the reservoir; a temperature sensor located between the mixing unit and the print head and sensing a temperature of the ink; and a controller controlling a temperature of at least one of the first heater and the second heater in response to information received from the temperature sensor. The print head includes a heat insulator blocking heat emitted from the first heater between the substrate and the first heater.
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公开(公告)号：US20160215384A1
公开(公告)日：2016-07-28
申请号：US14807028
申请日：2015-07-23
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Heung Cheol JEONG
CPC classification number: C23C14/243
Abstract: A deposition source includes a reflector at an upper end of a frame, the reflector being in a form of a reflection plate in which nozzle apertures are located, the reflector having a sink inclined surface inclining toward a central portion in which the nozzle apertures are located, the nozzles apertures being recessed from an edge front end portion that is on the upper end of the frame.
Abstract translation: 沉积源包括在框架的上端处的反射器，反射器为反射板的形式，喷嘴孔位于该反射板中，反射器具有向喷嘴孔所在的中心部分倾斜的凹槽倾斜表面 喷嘴孔从位于框架上端的边缘前端部凹下。
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