US 12,245,368 B2
Stretchable device and display panel and sensor and electronic device
Yeongjun Lee, Seongnam-si (KR); Gae Hwang Lee, Seongnam-si (KR); Jong Won Chung, Hwaseong-si (KR); Joo Young Kim, Hwaseong-si (KR); and Youngjun Yun, Seongnam-si (KR)
Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jun. 2, 2021, as Appl. No. 17/336,755.
Claims priority of application No. 10-2020-0093154 (KR), filed on Jul. 27, 2020.
Prior Publication US 2022/0030705 A1, Jan. 27, 2022
Int. Cl. H05K 1/02 (2006.01); H01L 27/12 (2006.01); H05K 1/03 (2006.01); H10K 77/10 (2023.01); H05K 1/18 (2006.01); H10K 102/00 (2023.01)
CPC H05K 1/0283 (2013.01) [H01L 27/1218 (2013.01); H05K 1/0277 (2013.01); H05K 1/0366 (2013.01); H10K 77/111 (2023.02); H05K 1/18 (2013.01); H05K 2201/0133 (2013.01); H05K 2201/10151 (2013.01); H10K 2102/311 (2023.02)] 17 Claims
OG exemplary drawing
 
1. A stretchable device, comprising:
a stretchable substrate including a first elastomer;
a plurality of unit devices on the stretchable substrate;
a connecting wire configured to electrically connect adjacent unit devices of the plurality of unit devices; and
a plurality of auxiliary structures, each auxiliary structure of the plurality of auxiliary structures at least partially overlapping with at least one unit device of the plurality of unit devices and/or the connecting wire in a vertical direction that is perpendicular to an upper surface of the stretchable substrate, the plurality of auxiliary structures each including a second elastomer,
wherein the first elastomer and the second elastomer are separate, respective polymers that commonly include at least one structural unit.
wherein the first elastomer is a first copolymer that includes a hard-structural unit of the first elastomer and a soft-structural unit of the first elastomer,
wherein the second elastomer is a second copolymer that includes a hard-structural unit of the second elastomer and a soft-structural unit of the second elastomer,
wherein the hard-structural unit of the first elastomer and the hard-structural unit of the second elastomer independently include a styrene-containing structural unit, an olefin-containing structural unit, or a combination thereof,
wherein a weight ratio of the hard-structural unit of the first elastomer to the soft-structural unit of the first elastomer is less than or equal to about 0.5, and
wherein a weight ratio of the hard-structural unit of the second elastomer to the soft-structural unit of the second elastomer is greater than or equal to about 1.5.