US 12,035,608 B2
Foldable display device and manufacturing method thereof
Sanghoon Kim, Hwaseong-si (KR); Minhoon Choi, Seoul (KR); Dohoon Kim, Suwon-si (KR); and Seongjin Hwang, Suwon-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Sep. 5, 2019, as Appl. No. 16/561,840.
Claims priority of application No. 10-2018-0128786 (KR), filed on Oct. 26, 2018; and application No. 10-2019-0049854 (KR), filed on Apr. 29, 2019.
Prior Publication US 2020/0136067 A1, Apr. 30, 2020
Int. Cl. B32B 7/12 (2006.01); H04M 1/02 (2006.01); H10K 50/84 (2023.01); H10K 50/844 (2023.01); H10K 50/856 (2023.01); H10K 50/86 (2023.01); H10K 50/87 (2023.01); H10K 59/12 (2023.01); H10K 71/00 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01)
CPC H10K 77/111 (2023.02) [B32B 7/12 (2013.01); H04M 1/0268 (2013.01); H10K 50/841 (2023.02); H10K 50/844 (2023.02); H10K 50/856 (2023.02); H10K 50/865 (2023.02); H10K 50/87 (2023.02); H10K 59/12 (2023.02); H10K 71/00 (2023.02); B32B 2457/20 (2013.01); H10K 71/851 (2023.02); H10K 2102/311 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A foldable display device comprising:
a display panel comprising a folding area and a non-folding area, the display panel having a front surface to display an image and a back surface facing oppositely away from the front surface;
a window adjacent the front surface of the display panel, the entire window being a glass to display the image;
an auxiliary layer adjacent the back surface of the display panel;
a first adhesive layer between the display panel and the window; and
a second adhesive layer between the display panel and the auxiliary layer,
wherein when the foldable display device is unfolded,
the window has a front surface parallel to the front surface of the display panel,
an entire perimeter of the front surface of the window comprises a first pair of sides extending in a first direction and opposite each other and a second pair of sides extending in a second direction and opposite each other and having a width longer than a width of the first pair of sides when viewed from above the front surface of the display panel,
on the front surface of the window, a width of the window at the folding area in the first direction is greater than a width of the window at the non-folding area in the first direction, and
on the front surface of the window, at least one of the second pair of sides of the window includes a protruding portion protruding in the first direction in the folding area.