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1.发明公开公开(公告)号：US20240317629A1
公开(公告)日：2024-09-26
申请号：US18575253
申请日：2021-11-01
Applicant: DOWOOINSYS CO., LTD.
Inventor： Seung Jun YI , Hyung Sup LEE , Sun Hong CHOI , Bon Ki KOO
CPC classification number: C03B33/074 , B28D1/221 , C03B33/091 , C03C23/0095
Abstract: A method for ablating a coating film, cutting glass, and performing post-treatment by using a laser according to the present invention includes coating one side or both sides of thin mother glass with a coating solution for preventing chemical contact in order to proceed with selective chemical treatment, drying the coating solution to form a coating film on one side or both sides of the thin mother glass, obtaining thin-film glasses in cell units applied to electrical and electronic products from the thin mother glass, healing a laser-cut surface of the cut thin-film glasses in cell units through selective chemical treatment of the cut thin-film glasses in cell units, cleaning the thin-film glasses in cell units, and then ablating all of a coating film formed on a surface of the thin-film glasses in cell units, and cleaning the thin-film glasses in cell units from which all of the coating film has been ablated and then chemically healing the surface of the thin-film glasses in cell units in order to eliminate defects or flaws on the surface of the thin-film glasses in cell units from which all of the coating film has been ablated.
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2.发明申请公开(公告)号：US20250154046A1
公开(公告)日：2025-05-15
申请号：US18833674
申请日：2022-06-29
Applicant: DOWOOINSYS CO.,LTD.
Inventor： Seung Jun YI , Hyung Sup LEE , Soung Woong CHOI
Abstract: Thin glass in cell unit (4) manufactured by glass cutting and post-processing methods according to the present invention is the thin glass in cell unit (4) installed on the front surface of an electronic device or a display unit of an electronic device, wherein a bevel-shaped cut portion (41) is formed at an end of one side of the thin glass in cell unit (4) in contact with the front surface of the display unit. In addition, the bevel-shaped cut portion (41) has a height (H) of 5% or more and 50% or less of a thickness of the thin glass in cell unit (4). In addition, the bevel-shaped cut portion (41) has a width (W) of 10% or more and 300% or less of the thickness of the thin glass in cell unit (4), and the thin glass in cell unit (4) is bent toward the front of the display unit.
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3.发明公开公开(公告)号：US20240351142A1
公开(公告)日：2024-10-24
申请号：US18683997
申请日：2022-01-13
Applicant: DOWOOINSYS CO.,LTD.
Inventor： Seung Jun YI , Hyung Sup LEE , Sun Hong CHOI , Soung Woong CHOI
IPC: B23K26/362 , B23K26/60 , B23K26/70 , B23K103/00
CPC classification number: B23K26/362 , B23K26/60 , B23K26/70 , B23K2103/54
Abstract: A method for laser-cutting and post-treating a UTG having a partial coating film formed thereon according to the present invention includes a step (S1) of coating an entire front surface of a thin-film mother glass (1) with a coating solution for preventing chemical contact, and then drying the resulting product to form a coating film, a step (S2) of forming, on a rear surface of the thin-film mother glass (1), a partial coating film (2) which is the same shape as the shape of a cell-unit thin-film glass (3) to be cut from the thin-film mother glass (1), and a step (S3) of irradiating the rear surface of the thin-film mother glass (1) with a laser beam to cut the coating film, formed on a front surface of the thin-film mother glass (1), and the thin-film mother glass (1), wherein the laser beam is applied along a cut guiding line (6) formed a predetermined distance away from an outer edge line of the partial coating film (2) and in the shape of the cell-unit thin-film glass (3), to cut and then separate the cell-unit thin-film glass (3) from the thin-film mother glass (1).
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