US 12,289,981 B2
Foldable display device
TaeWoo Kim, Paju-si (KR); Jungkyu Park, Seoul (KR); and SangJun Lee, Seoul (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Oct. 14, 2021, as Appl. No. 17/501,719.
Claims priority of application No. 10-2020-0187224 (KR), filed on Dec. 30, 2020.
Prior Publication US 2022/0209145 A1, Jun. 30, 2022
Int. Cl. H10K 77/10 (2023.01); B32B 3/02 (2006.01); B32B 3/30 (2006.01); B32B 15/04 (2006.01); B32B 15/08 (2006.01); H10K 102/00 (2023.01)
CPC H10K 77/111 (2023.02) [B32B 3/02 (2013.01); B32B 3/30 (2013.01); B32B 15/043 (2013.01); B32B 15/08 (2013.01); B32B 2457/206 (2013.01); H10K 2102/311 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A foldable display device, comprising:
a display panel including a display area and a non-display area surrounding the display area,
wherein the display panel is divided into a folding area including a part of the display area and a part of the non-display area, and non-folding areas are defined on both sides of the folding area;
a first support substrate disposed under the display panel to support the display panel, and including a plurality of openings disposed in an area corresponding to the part of the non-display area of the folding area; and
a second support substrate disposed under the first support substrate,
wherein a width of the plurality of openings in an extension direction of a folding axis of the folding area is greater than a width of the plurality of openings in a direction perpendicular to the extension direction of the folding axis, and
wherein the first support substrate is a metal layer disposed closest to the display panel under the display panel.