US 12,225,810 B2
Display device and method for manufacturing the same
Suk Won Jung, Hwaseong-si (KR); Seokhyun Nam, Seoul (KR); Jongdeok Park, Hwaseong-si (KR); and Cheuljin Park, Seoul (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Appl. No. 17/261,385
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
PCT Filed Apr. 29, 2019, PCT No. PCT/KR2019/005165
§ 371(c)(1), (2) Date Jan. 19, 2021,
PCT Pub. No. WO2020/017744, PCT Pub. Date Jan. 23, 2020.
Claims priority of application No. 10-2018-0084935 (KR), filed on Jul. 20, 2018.
Prior Publication US 2021/0265580 A1, Aug. 26, 2021
Int. Cl. H10K 77/10 (2023.01); H10K 50/84 (2023.01); H10K 50/844 (2023.01); H10K 59/12 (2023.01); H10K 59/40 (2023.01); H10K 71/00 (2023.01); H10K 102/00 (2023.01)
CPC H10K 77/111 (2023.02) [H10K 50/841 (2023.02); H10K 50/844 (2023.02); H10K 59/12 (2023.02); H10K 59/40 (2023.02); H10K 71/00 (2023.02); B32B 2457/206 (2013.01); H10K 2102/311 (2023.02)] 11 Claims
OG exemplary drawing
 
1. A method for manufacturing a display device, comprising:
disposing an optical clear adhesive (OCA) comprising an acrylic-based material on a display module, the display module comprising a flexible display panel, and an input sensing circuit on the flexible display panel;
generating a first module by disposing a hot-melt adhesive on the optical clear adhesive, the hot-melt adhesive comprising at least one of a polyurethane-based material, a polyethersulfone-based material, a polyamide-based material, or an ethylene-vinyl acetate-based material;
generating a second module by pressing the first module on a fixing sheet with a roller disposed directly on the hot-melt adhesive, the roller moving in a direction perpendicular to a stacking direction of the first module and the fixing sheet;
aligning a window member on the second module, the window member comprising a first transmission surface having a first side and a second side opposite the first side, a second transmission surface extending from the first side at an angle with respect to the first transmission surface, and a third transmission surface extending from the second side at an angle with respect to the first transmission surface;
contacting the second module and the window member to each other;
generating a third module by coupling the second module and the window member to each other by applying heat to the second module and the window member for a time; and
separating the fixing sheet from the third module,
wherein an adhesive force of the hot-melt adhesive in the contacting of the second module and the window member to each other is less than the adhesive force of the hot-melt adhesive in the generating of the third module.