Detecting device and measuring apparatus

A detecting device comprising a substrate and a plurality of detecting elements arranged in a matrix at the substrate, wherein

• each of the plurality of detecting elements includes a light emitting portion configured to emit light toward a living body and a light receiving portion configured to receive light from the living body based on the light emitted from the light emitting portion,
• the light receiving portion includes a photoelectric conversion portion formed at the substrate, and
• the light emitting portion includes an organic electroluminescent light emitting element formed at the substrate at a position adjacent to the photoelectric conversion portion,
• wherein
• a plurality of first scan lines extending in a first direction and a plurality of first and second signal lines extending in a second direction intersecting the first direction are formed at the substrate,
• each one of detecting elements is disposed in each of areas obtained by partitioning the substrate in a grid pattern by the first scan lines and the first signal lines,
• the light emitting portion is configured to be driven via the first scan line and the first signal line, and
• the light receiving portion is configured to output a detection signal of the light emitted from the living body through the second signal line.