OLED monitors use self-lit pixels to produce bright, clear images. Because the display generates heat during use, leaving the same image on the screen for a long time may cause faint marks.
Run Image Cleaning from the monitor settings to refresh the pixels and reduce these marks.
Why Are There Lines or Marks on the Screen?
- If static elements such as the Windows taskbar, icons, or game menus remain on the screen for an extended period, the affected pixels may develop temporary image retention.
- Temporary marks may appear after you move the monitor or when the room temperature changes significantly.
How to Run Image Cleaning
Step 1. If Your Monitor Does Not Have a Remote
- Use the joystick button on the monitor to open the settings and run Image Cleaning.
- Press the joystick button on the back or at the bottom center of the monitor to open the on-screen menu.
- Move the joystick to open Settings.
- Select OLED Care, and then select Image Cleaning to start the process.
Step 2. If You Have a Remote with an OLED Care Button
- Press the OLED Care button on the remote.
- Select Image Cleaning from the on-screen menu, and then select Yes.
- When the confirmation message appears, select Yes again.
Step 3. If You Have a Remote with a Dial Button
- Press the Dial button in the center of the remote.
- Select OLED Care from the circular on-screen menu.
- Select Image Cleaning, and then select Yes. When the confirmation message appears, select Yes again.
Step 4. Still need help?
If the issue persists after following the steps above, you can get further support through LG Chatbot on our website or by requesting a technician visit.
(Note: A service fee may apply if your product is out of warranty.)
FAQ
- Q. Do I Need to Run Image Cleaning Manually Whenever I See Marks on the Screen?
- A. No. To help reduce temporary image retention caused by extended use, Image Cleaning runs automatically when the monitor enters power-saving mode or is turned off. This happens after more than four hours of use since the previous cleaning process was completed.
- Q. What Should I Do If the Marks Remain After I Turn the Monitor Off and Back On?
- A. Follow the instructions above to run Image Cleaning manually using the monitor controls or remote.
This guide is based on standard models. The settings menu may vary by model.
