US 12,136,363 B2
Flexible display device including thin film encapsulation patterns
Sunghyun Park, Yongin-si (KR); Minhwan Choi, Yongin-si (KR); Hyukjin Kim, Yongin-si (KR); and Seungsuk Yang, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jul. 13, 2020, as Appl. No. 16/926,966.
Claims priority of application No. 10-2019-0087765 (KR), filed on Jul. 19, 2019.
Prior Publication US 2021/0020078 A1, Jan. 21, 2021
Int. Cl. H10K 50/84 (2023.01); G09F 9/30 (2006.01); H10K 50/844 (2023.01); H10K 59/12 (2023.01); G02F 1/1333 (2006.01); H10K 59/121 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01)
CPC G09F 9/301 (2013.01) [H10K 50/844 (2023.02); G02F 1/133305 (2013.01); H10K 59/121 (2023.02); H10K 77/111 (2023.02); H10K 2102/00 (2023.02); H10K 2102/311 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A flexible display device comprising:
a substrate which is bendable or rollable based on an axis;
a plurality of display elements on the substrate; and
a plurality of thin-film encapsulation patterns which covers the plurality of display elements, wherein
the plurality of thin-film encapsulation patterns comprise a first thin-film encapsulation pattern and a second thin-film encapsulation pattern, which are apart from each other in a direction crossing the axis, and
each of the first thin-film encapsulation pattern and the second thin-film encapsulation pattern extends in parallel to the axis of the flexible display device,
a groove having an undercut structure defined between the first thin-film encapsulation pattern and the second thin-film encapsulation pattern,
wherein the groove is not defined in the substrate, and
wherein the groove extends in parallel to the axis of the flexible display device.