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

IPC: C03B33/07 ,  B28D1/22 ,  C03B33/09 ,  C03C23/00

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.

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).