SENSOR, DISPLAY DEVICE, MOBILE TELEPHONE, AND DIGITAL CAMERA

摘要

In order to provide a single-unit sensor which serves as both an illuminance sensor and a proximity sensor, the sensor (1) includes a light receiving element section (E1), an infrared cut-off filter (IRcutF), and a switching section (SWS) for switching spectral characteristics of the light receiving element section (E1). The infrared cut-off filter (IRcutF) has an opening, and an infrared light receiving P-N junction (PDir) is provided at a location deeper in a substrate than a visible light receiving P-N junction (PDvis).

主权项

1. A sensor comprising:
a first light receiving element section which is provided in a substrate, the first light receiving element section having (i) a first visible light receiving P-N junction that has a visible light spectral characteristic and (ii) a first infrared light receiving P-N junction that has an infrared light spectral characteristic; an infrared cut-off filter which is provided so as to cover the first light receiving element section, the infrared cut-off filter removing an infrared component from light; and a first switching section for switching spectral characteristics of the first light receiving element section, the infrared cut-off filter having an opening, and the first infrared light receiving P-N junction being provided at a location deeper in the substrate than the visible light receiving P-N junction.