1. First open the main screen of the mobile phone, find-Settings, and click in; As shown in the figure.

2. After entering, find the display screen and click Enter; As shown in the figure.

3. Then find-close the screen display and open it; As shown in the figure.

4. Click the button to turn on the off-screen display function; As shown in the figure.

5. Finally, set the interval display or set the all-day display according to the requirements; As shown in the figure.