Phone of the Day: Ulefone Armor 24

What is Ambient Light sensor?

An ambient light sensor is a component in smartphones, notebooks, other mobile devices, automotive displays and LCD TVs. It is a photodetector that is used to sense the amount of ambient light present, and appropriately dim the device's screen to match it. This avoids having the screen be too bright when the user's pupils are adapted for vision in a dark room, or too dim when the device is used outdoors in the daytime. The sensor not only supports automatic white balance (AWB) when taking photos, but also works with the proximity sensor to prevent mis operations when, for example, the phone ... View more