OLED display is a high-quality display technology, but in the use and maintenance need to pay attention to the following matters. 

1. Avoid prolonged static display: OLED screen may appear "burn-in" phenomenon when displaying static images for a long time, resulting in image residue. Try to minimize the display of the same image or interface for a long time.

2. Control brightness: High brightness settings may accelerate the life of OLEDs. Adjust the brightness reasonably to extend the life of the display. 

3. Prevent liquid contact: OLED screen is not liquid resistant, avoid liquid splashing into or touching the display. Special care should be taken to avoid splashing liquid on the screen and wipe it off in time.

4. Avoid high-temperature environments: OLED screens are easily damaged in high-temperature environments. Avoid placing the device in a high-temperature place so as not to affect the performance of the screen.

5. Regular screen saver: Use screen saver function, such as screen saver or auto-sleep function, to reduce the brightness and energy consumption when the device is not used for a long time.

6. Protect from bright light: Avoid exposing the OLED screen to sunlight or bright light to prevent screen reflection and damage.

7. Touch with care: OLED screens are susceptible to scratches and pressure damage, handle and clean them with care.

In conclusion, proper use and maintenance of OLED displays can extend their life and maintain a high quality display. Following the above precautions will ensure that your OLED screen performs well in long-term use.