▎ 摘　　要

NOVELTY - Sensor array (500) comprises unit element groups (510), where each of the unit element groups comprises a pressure sensor (100), a light emitting element (200), and a light detecting element (300), and the pressure sensor comprises a variable resistance layer comprising a stretchable polymer and conductive nanostructures dispersed in the stretchable polymer. The pressure sensor further comprises a pair of electrodes. The light emitting element comprises a first light emitting element and a second light emitting element. The first light emitting element is a red light emitting element (200A) configured to emit light in a red wavelength spectrum. The second light emitting element is a green light emitting element (200B) configured to emit light in a green wavelength spectrum. The sensor array further comprises a stretchable substrate (10) supporting the pressure sensor, the light emitting element and the light detecting element. USE - The array is useful for a device including electroencephalogram sensor device, an electrocardiogram sensor device, a blood pressure sensor device, an electromyography sensor device, a blood glucose sensor device, a photoplethysmography sensor device, an accelerometer device, an RFID antenna device, an inertial sensor device, an activity sensor device, a strain sensor device, and a motion sensor device. ADVANTAGE - The array senses pressure stably, increases sensing sensitivity and accuracy, exhibits reduced resistance value, and reduces or prevents inflow of oxygen, moisture and/or contaminants from the outside. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a device; and (2) a method for operating the sensor array. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a portion of the sensor array. Substrate (10) Pressure sensor (100) Light emitting element (200) Red light emitting element (200A) Green light emitting element (200B) Light detecting element (300) Sensor array (500) Unit element group (501)