US 12,216,353 B2
Flexible display apparatus
Heeyoung Lee, Suwon-si (KR); and Eunmi Seo, Cheonan-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Apr. 19, 2023, as Appl. No. 18/136,396.
Application 18/136,396 is a continuation of application No. 17/682,636, filed on Feb. 28, 2022, granted, now 11,693,272.
Application 17/682,636 is a continuation of application No. 16/522,725, filed on Jul. 26, 2019, granted, now 10,993,530.
Application 16/522,725 is a continuation of application No. 15/646,044, filed on Jul. 10, 2017, granted, now 10,401,675, issued on Sep. 3, 2019.
Claims priority of application No. 10-2016-0159639 (KR), filed on Nov. 28, 2016.
Prior Publication US 2023/0258974 A1, Aug. 17, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/1335 (2006.01); G02B 5/30 (2006.01); G02F 1/1333 (2006.01); G02F 1/13363 (2006.01); H10K 50/86 (2023.01); H10K 59/40 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01)
CPC G02F 1/133528 (2013.01) [G02F 1/133305 (2013.01); G02F 1/13363 (2013.01); G02B 5/3016 (2013.01); G02B 5/3083 (2013.01); G02F 2202/28 (2013.01); H10K 50/86 (2023.02); H10K 59/40 (2023.02); H10K 77/111 (2023.02); H10K 2102/311 (2023.02)] 8 Claims
OG exemplary drawing
 
1. A flexible display apparatus comprising:
a display panel; and
a polarizing structure disposed on the display panel,
wherein the polarizing structure comprises:
a λ/4 phase retardation layer;
a linear polarizer disposed on the λ/4 phase retardation layer;
a first adhesive structure disposed between the λ/4 phase retardation layer and the linear polarizer;
a λ/2 phase retardation layer disposed between the λ/4 phase retardation layer and the linear polarizer; and
a second adhesive structure disposed between the λ/2 phase retardation layer and the linear polarizer,
wherein, in a plan view, an angle between an absorption axis or a transmission axis of the linear polarizer and a bending axis of the flexible display apparatus is 45 degrees±30 degrees, and
wherein a glass transition temperature of the first adhesive structure is greater than a glass transition temperature of the second adhesive structure, and
the first adhesive structure is an adhesive layer having the glass transition temperature greater than or equal to 40° C. and less than or equal to 150° C.; and
the second adhesive structure is an adhesive layer having the glass transition temperature greater than or equal to −35° C. and less than or equal to 0° C.