Pulse oximetry is a ubiquitous non ... A schematic view of the sensor is given in Fig. 1a, where two OLED arrays and two OPDs are placed on opposite sides of a finger. Figure 4: PPG acquisition ...

The 'sensor OLED display' announced by Samsung this time is said to be able to recognize fingerprints on the entire screen by embedding an organic photodiode (OPD) that senses light in the panel ...