US 12,428,331 B2
Window molding apparatus and window molding method using the same
Seung Kim, Seongnam-si (KR); Byunghoon Kang, Hwaseong-si (KR); Kyungrok Ko, Suwon-si (KR); Seungho Kim, Asan-si (KR); Young-Seok Seo, Seoul (KR); and Gyuin Shim, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Jun. 4, 2024, as Appl. No. 18/733,317.
Application 18/733,317 is a division of application No. 17/404,926, filed on Aug. 17, 2021, granted, now 12,037,278.
Claims priority of application No. 10-2020-0145775 (KR), filed on Nov. 4, 2020.
Prior Publication US 2024/0317627 A1, Sep. 26, 2024
Int. Cl. C03B 23/03 (2006.01)
CPC C03B 23/0302 (2013.01) [C03B 23/0307 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A window molding method using a window molding apparatus defining a first direction, a second direction perpendicular to the first direction, and a third direction perpendicular to the first and second directions, the method comprising:
an inner molding part comprising a core molding part, which comprises a plurality of sub-bottom surfaces having different curvature radii, and a flat molding part spaced apart from the sub-bottom surfaces and disposed on the core molding part; and an outer molding part which is disposed below the inner molding part with a member to be processed therebetween and in which a groove corresponding to the core molding part is defined,
the window molding method comprising:
providing a member to be processed between the inner molding part and the outer molding part; and
molding the member to be processed so that the member to be processed includes a bent portion that is bent with respect to a bending axis extending in the second direction along shapes of the groove and the core molding part,
wherein the molding of the member to be processed comprises:
providing heat to the member to be processed; and
bending the member to be processed via the inner molding part so that the bent portion of the member to be processed includes first and second sub-bent portions and the member to be processed includes first and second non-bent portions facing each other in the third direction with the bent portion therebetween,
wherein the second sub-bent portion comprises a first sub-portion and a second sub-portion,
wherein the first sub-portion of the second sub-bent portion extends continuously from the first non-bent portion to the first sub-bent portion, the first sub-bent portion extends continuously from the first sub-portion of the second sub-bent portion to the second sub-portion of the second sub-bent portion, and the second sub-portion of the second sub-bent portion extends continuously from the first sub-bent portion to the second non-bent portion,
wherein the first non-bent portion has a length in the first direction greater than a length of the bent portion in the third direction, and
wherein the first non-bent portion has a surface area greater than an inner surface area of the bent portion.