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How to Fix Lines or Marks on Your LG OLED Monitor Using Image

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.

How to Fix Lines or Marks on Your LG OLED Monitor Using Image Cleaning LG USA help image
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TroubleshootingTVs

What to Check First

  1. 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.
  2. Temporary marks may appear after you move the monitor or when the room temperature changes significantly.
  3. Use the joystick button on the monitor to open the settings and run Image Cleaning.
  4. Press the joystick button on the back or at the bottom center of the monitor to open the on-screen menu.
  5. Move the joystick to open Settings.
  6. Select OLED Care, and then select Image Cleaning to start the process.
  7. Press the OLED Care button on the remote.
  8. Select Image Cleaning from the on-screen menu, and then select Yes.
  9. When the confirmation message appears, select Yes again.
  10. Press the Dial button in the center of the remote.

Why This Can Happen

Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.

Safety and Model-Specific Guidance

Stop troubleshooting if you notice burning, electrical damage, unsafe heat, gas odor, refrigerant concerns, or water near electrical components. Follow the official LG USA instructions for your exact model.

Frequently Asked Questions

What should I check first for How to Fix Lines or Marks on Your LG OLED Monitor Using Image Cleaning?

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.

When should I stop troubleshooting and contact LG?

Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.

Does this guidance apply to every LG model?

Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.

Related LG Products

These model pages are linked because the stored category or exact model matches this Help Library topic.

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Read the Official LG Guide