US 12,302,683 B2
Detection device
Kento Himoto, Tokyo (JP); and Takashi Nakamura, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Aug. 18, 2022, as Appl. No. 17/890,642.
Claims priority of application No. 2021-135625 (JP), filed on Aug. 23, 2021.
Prior Publication US 2023/0054533 A1, Feb. 23, 2023
Int. Cl. H10K 39/32 (2023.01); A61B 5/00 (2006.01); G06V 10/143 (2022.01); G06V 40/12 (2022.01); G06V 40/13 (2022.01); G06V 40/145 (2022.01)
CPC H10K 39/32 (2023.02) [A61B 5/489 (2013.01); G06V 10/143 (2022.01); G06V 40/1318 (2022.01); G06V 40/1341 (2022.01); G06V 40/145 (2022.01)] 11 Claims
OG exemplary drawing
 
1. A detection device comprising:
a substrate;
a plurality of photodiodes provided on the substrate;
a plurality of transistors provided correspondingly to the respective photodiodes;
a plurality of gate lines that extend in a first direction;
a plurality of signal lines that extend in a second direction intersecting the first direction;
a plurality of lower electrodes that are provided between the transistors and the photodiodes in a direction orthogonal to the substrate, and are provided correspondingly to the respective photodiodes;
an upper electrode provided so as to extend across the photodiodes; and
a reflective layer provided between the substrate and each of the photodiodes in the direction orthogonal to the substrate, wherein
each of the lower electrodes has a smaller area than an area defined by the gate lines and the signal lines, and
the reflective layer is provided between the lower electrodes adjacent to each other in a plan view.