US 11,986,276 B2
Biosensor and biosensor array and device
Gae Hwang Lee, Seongnam-si (KR); Hyun Bum Kang, Yongin-si (KR); Jong Won Chung, Hwaseong-si (KR); Youngjun Yun, Yongin-si (KR); and Yeongjun Lee, Seongnam-si (KR)
Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Oct. 26, 2020, as Appl. No. 17/079,868.
Claims priority of application No. 10-2020-0068623 (KR), filed on Jun. 5, 2020.
Prior Publication US 2021/0378533 A1, Dec. 9, 2021
Int. Cl. A61B 5/024 (2006.01)
CPC A61B 5/02427 (2013.01) [A61B 5/02438 (2013.01); A61B 2562/0238 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A biosensor, comprising
a light-emitting element,
a photo-detective element,
a light transmitting layer extending continuously under the light-emitting element and the photo-detective element, and
an optical structure inside the light transmitting layer, the optical structure being configured to control a propagation direction of light passing through the light transmitting layer,
wherein the optical structure and the light transmitting layer include different materials,
wherein the light transmitting layer includes a stretchable material,
wherein the light transmitting layer includes a plurality of first regions having a higher elastic modulus and a second region having a lower elastic modulus than the plurality of first regions, wherein the second region extends between adjacent first regions of the plurality of first regions,
wherein each of the plurality of first regions has an island-shape separated from each other, and
wherein each of the light-emitting element and the photo-detective element is on a separate first region of the plurality of first regions of the light transmitting layer,
wherein the optical structure includes
a first optical structure overlapping the light-emitting element in a thickness direction of the light transmitting layer,
a second optical structure overlapping the photo-detective element in the thickness direction of the light transmitting layer, and
a third optical structure between the light-emitting element and the photo-detective element and further between the first optical structure and the second optical structure within the light transmitting layer, wherein the third optical structure is at least partially located within the second region of the light transmitting layer and is configured to scatter or refract light reflected by a living body and passing through the third optical structure in at least the second region of the light transmitting layer to direct the scattered or refracted light to the photo-detective element.