US 12,089,929 B2
Wearable photoluminescence sensor and remote sensing apparatus comprising same
Jin-Woo Park, Paju-si (KR); Changjin Lim, Paju-si (KR); Soyeon Lee, Paju-si (KR); Su Seok Choi, Paju-si (KR); Kiseok Chang, Paju-si (KR); Jeong Min Moon, Paju-si (KR); Soon Shin Jung, Paju-si (KR); Sungpil Ryu, Paju-si (KR); and Jihwan Jung, Paju-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Appl. No. 17/270,815
Filed by LG Display Co., Ltd., Seoul (KR)
PCT Filed Aug. 23, 2019, PCT No. PCT/KR2019/010780
§ 371(c)(1), (2) Date Feb. 23, 2021,
PCT Pub. No. WO2020/040606, PCT Pub. Date Feb. 27, 2020.
Claims priority of application No. 10-2018-0098469 (KR), filed on Aug. 23, 2018.
Prior Publication US 2021/0275062 A1, Sep. 9, 2021
Int. Cl. A61B 5/1455 (2006.01); A61B 5/00 (2006.01)
CPC A61B 5/1455 (2013.01) [A61B 5/6801 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A wearable photoluminescence sensor comprising:
a light-emitting element emitting a first light of a first wavelength band;
a sensing film emitting a second light of a second wavelength band different from the first light after absorbing the first light, wherein the sensing film is disposed below the light-emitting element;
a translucent photo-diode disposed above and spaced apart from the light-emitting element and at least partially and vertically non-overlapping with the light-emitting element, wherein the translucent photo-diode includes a first side and a second side opposite to the first side;
a transflective filter disposed between the light-emitting element and the first side of the translucent photo-diode; and
a reflective support disposed above and spaced apart from the translucent photo-diode, the reflective support includes a reflective layer facing the second side of the translucent photo-diode,
wherein the reflective layer reflects the second light of the second wavelength band to the second side of the translucent photo-diode, and
wherein the second light of the second wavelength band is absorbed from each of the first side and the second side of the translucent photo-diode.