What is the black screen of mobile phone call?

The phone's black screen is caused by the system turning on the "intelligent somatosensory" function by default.

The mobile phone has a built-in "infrared sensor", which is located at the upper or top of the mobile phone. When the user answers the phone, it will be close to the ear and face. The infrared sensor senses that there is an object approaching, and it will control the screen to turn off automatically to prevent the face or ear from "touching" the mobile phone by mistake, which is a kind of humanized function and normal.

Intelligent somatosensory function

1. Cool human body induction. When you call, you don't need to touch the screen, shake your mobile phone and answer it immediately.

2, careful somatosensory design, texting is too cumbersome, and it is efficient and convenient to talk directly to your ear.

3. Intelligent mute function. When in a meeting, if you are worried about being disturbed by the ringing of the incoming call, flip the phone and mute it immediately.

4. Smart privacy protection. Hands-free calls are put in your ear for intimate switching.

5, mysterious magic unlock, light up the screen and play with the phone to unlock from a distance, and create your signature action.