公开(公告)号：US20230138834A1

公开(公告)日：2023-05-04

申请号：US17864738

申请日：2022-07-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jungwoo Cho ,  Minwoo Rhee ,  Hyunjin Lee ,  Seungdon Lee ,  Sujie Kang ,  Sunwoo Park ,  Kyoungwhan Oh ,  Jungshin Lee ,  Juhyung Lee

IPC: B29C64/277 ,  B29C64/245 ,  B29C64/209 ,  B33Y30/00

Abstract: A 3D printing apparatus includes a substrate stage configured to support a substrate, a droplet ejector including at least one droplet nozzle configured to discharge a photo-curable droplet on the substrate, a first photo curing unit configured to irradiate light to a drop path along which the droplet discharged from the droplet nozzle falls to change a viscosity of the droplet, and a second photo curing unit configured to irradiate light onto the droplet that has landed on the substrate to cure the droplet.

公开(公告)号：US11222191B2

公开(公告)日：2022-01-11

申请号：US16986939

申请日：2020-08-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jungwoo Cho

IPC: G06K9/00 ,  G06T7/80 ,  G06F21/32

Abstract: A method for generating calibration data of an electronic device includes obtaining a plurality of background images through at least part of a display of the electronic device, using a fingerprint sensor positioned under the display of the electronic device, obtaining a variation between the plurality of background images, when the variation is less than or equal to a threshold value, generating calibration data for the fingerprint sensor, using at least one background image of the plurality of background images, and storing the generated calibration data in a memory of the electronic device.

公开(公告)号：US20240367376A1

公开(公告)日：2024-11-07

申请号：US18772836

申请日：2024-07-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jungwoo Cho ,  Minwoo Rhee ,  Hyunjin Lee ,  Seungdon Lee ,  Sujie Kang ,  Sunwoo Park ,  Kyoungwhan Oh ,  Jungshin Lee ,  Juhyung Lee

IPC: B29C64/277 ,  B29C64/112 ,  B29C64/209 ,  B29C64/245 ,  B33Y30/00

Abstract: A 3D printing apparatus includes a substrate stage configured to support a substrate, a droplet ejector including at least one droplet nozzle configured to discharge a photo-curable droplet on the substrate, a first photo curing unit configured to irradiate light to a drop path along which the droplet discharged from the droplet nozzle falls to change a viscosity of the droplet, and a second photo curing unit configured to irradiate light onto the droplet that has landed on the substrate to cure the droplet.

公开(公告)号：US12070903B2

公开(公告)日：2024-08-27

申请号：US17864738

申请日：2022-07-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jungwoo Cho ,  Minwoo Rhee ,  Hyunjin Lee ,  Seungdon Lee ,  Sujie Kang ,  Sunwoo Park ,  Kyoungwhan Oh ,  Jungshin Lee ,  Juhyung Lee

IPC: B29C64/277 ,  B29C64/112 ,  B29C64/209 ,  B29C64/245 ,  B33Y30/00

CPC classification number: B29C64/277 ,  B29C64/209 ,  B29C64/245 ,  B33Y30/00 ,  B29C64/112

Abstract: A 3D printing apparatus includes a substrate stage configured to support a substrate, a droplet ejector including at least one droplet nozzle configured to discharge a photo-curable droplet on the substrate, a first photo curing unit configured to irradiate light to a drop path along which the droplet discharged from the droplet nozzle falls to change a viscosity of the droplet, and a second photo curing unit configured to irradiate light onto the droplet that has landed on the substrate to cure the droplet.