US 12,120,902 B2
Foldable display device
Myoung Seo Park, Seoul (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Mar. 9, 2023, as Appl. No. 18/119,445.
Application 18/119,445 is a continuation of application No. 17/184,174, filed on Feb. 24, 2021, granted, now 11,616,210.
Application 17/184,174 is a continuation of application No. 16/216,393, filed on Dec. 11, 2018, granted, now 11,223,025, issued on Jan. 11, 2022.
Claims priority of application No. 10-2018-0055195 (KR), filed on May 15, 2018.
Prior Publication US 2023/0217684 A1, Jul. 6, 2023
Int. Cl. H05K 5/00 (2006.01); G02F 1/1333 (2006.01); H05K 5/03 (2006.01); H10K 50/842 (2023.01); H10K 50/844 (2023.01); H10K 59/12 (2023.01); H10K 71/00 (2023.01); H10K 102/00 (2023.01)
CPC H10K 50/8426 (2023.02) [G02F 1/133305 (2013.01); H05K 5/0017 (2013.01); H05K 5/03 (2013.01); H10K 50/844 (2023.02); H10K 71/00 (2023.02); H10K 59/12 (2023.02); H10K 2102/311 (2023.02)] 35 Claims
OG exemplary drawing
 
1. A foldable display device, comprising:
a flexible window module having a light transparency and serving as a protection structure,
a flexible functional module located under or below the flexible window module, the flexible functional module having at least one function selected from the group of color conversion, color filtering, touch sensing, biometric information recognition, and allowing a portion of light to selectively advance through;
a flexible display module located under or below the flexible functional module, the flexible display module comprising an electroluminescent unit, wherein
at a first side portion of the foldable display device, a side surface portion of the flexible window module, a side surface portion of the flexible functional module, and a side surface portion of the flexible display module are located substantially on a first etching plane,
at the first side portion of the foldable display device, an inner angle formed by an upper surface of the flexible window module and the first etching plane is an acute angle, the first side portion of the foldable display device having a first sidewall shape,
the foldable display device has a second side portion having a second sidewall shape substantially different from the first sidewall shape of the first side portion of the foldable display device, the second side portion of the foldable display device being located in a non-foldable region of the foldable display device,
the foldable display device has a third side portion having a third side wall shape substantially different from the first and second sidewall shapes of the first and second side portions of the foldable display device, the third side portion of the foldable display device being located in the non-foldable region,
the first side portion of the foldable display device continues to the second side portion of the foldable display device in plan view, and
the second side portion of the foldable display device is located between the first and third side portions of the foldable display device in plan view.