US 11,930,593 B2
Flexible printed circuit film and stretchable display device including the same
Hohyun Keum, Goyang-si (KR); and Mingyu Kang, Paju-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Nov. 2, 2021, as Appl. No. 17/516,926.
Application 17/516,926 is a division of application No. 16/519,291, filed on Jul. 23, 2019, granted, now 11,197,370.
Claims priority of application No. 10-2018-0087706 (KR), filed on Jul. 27, 2018.
Prior Publication US 2022/0061154 A1, Feb. 24, 2022
Int. Cl. H05K 1/02 (2006.01); H01L 27/15 (2006.01); H05K 1/03 (2006.01); H05K 1/14 (2006.01); H05K 1/18 (2006.01); H10K 59/131 (2023.01); H10K 77/10 (2023.01); H01L 27/12 (2006.01); H10K 102/00 (2023.01)
CPC H05K 1/0283 (2013.01) [H01L 27/156 (2013.01); H05K 1/0313 (2013.01); H05K 1/0393 (2013.01); H05K 1/147 (2013.01); H05K 1/189 (2013.01); H10K 59/131 (2023.02); H10K 77/111 (2023.02); H01L 27/1218 (2013.01); H01L 27/124 (2013.01); H05K 2201/0154 (2013.01); H05K 2201/0162 (2013.01); H05K 2201/10128 (2013.01); H10K 2102/311 (2023.02)] 11 Claims
OG exemplary drawing
 
1. A flexible printed circuit film, comprising:
a base film which is stretchable in a first direction and a second direction perpendicular to the first direction, and including a plurality of sub-base films separated from one another; and
a plurality of conductive lines disposed on the base film,
wherein each of the plurality of sub-base films is disposed to correspond to each of the plurality of conductive lines,
wherein the base film includes one side in the second direction and another side opposite the one side in the second direction,
wherein the plurality of sub-base films are disposed to be spaced apart along the first direction, and
wherein, when the base film is stretched, a distance between the plurality of sub-base films along the first direction increases in the second direction from the one side of the base film to the another side of the base film.