US 12,079,042 B2
Flexible display device
Sunhaeng Cho, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Sep. 14, 2023, as Appl. No. 18/467,590.
Application 16/411,750 is a division of application No. 15/786,416, filed on Oct. 17, 2017, granted, now 10,331,173, issued on Jun. 25, 2019.
Application 18/467,590 is a continuation of application No. 17/672,014, filed on Feb. 15, 2022, granted, now 11,797,055.
Application 17/672,014 is a continuation of application No. 17/078,665, filed on Oct. 23, 2020, granted, now 11,269,380, issued on Mar. 8, 2022.
Application 17/078,665 is a continuation of application No. 16/411,750, filed on May 14, 2019, granted, now 10,817,023, issued on Oct. 27, 2020.
Claims priority of application No. 10-2016-0135864 (KR), filed on Oct. 19, 2016.
Prior Publication US 2024/0004432 A1, Jan. 4, 2024
Int. Cl. G06F 1/16 (2006.01); G09F 9/30 (2006.01); H10K 77/10 (2023.01); G06F 3/041 (2006.01); H10K 59/40 (2023.01); H10K 102/00 (2023.01)
CPC G06F 1/1652 (2013.01) [G09F 9/301 (2013.01); H10K 77/111 (2023.02); G06F 3/0412 (2013.01); G06F 2203/04102 (2013.01); H10K 59/40 (2023.02); H10K 2102/311 (2023.02)] 13 Claims
OG exemplary drawing
 
1. A flexible display device comprising:
a flexible display module comprising a flexible display panel;
a first frame and a second frame supporting the flexible display module;
a hinge portion pivotally coupling the first frame and the second frame; and
a curvature sensor sensing a curvature of the flexible display module, and
the curvature sensor comprising:
a wheel portion connected to a rotation axis of the hinge portion and rotating in accordance with folding and unfolding of the flexible display module;
a sensor switch adjacent to the wheel portion; and
a permanent magnet located on the wheel portion, a distance between the sensor switch and the permanent magnet varying in accordance with rotating of the hinge portion, and
a state of the sensor switch varies the distance between the sensor switch and the permanent magnet.