LG monitor Reader Mode and Flicker Safe explained

Updated 2026-11-02

Quick answerSome LG monitors offer Reader Mode, a one-button picture mode that LG says reduces blue light, and Flicker Safe, which LG says brings backlight flicker to almost zero. Flicker matters because people with migraine are more sensitive to it. Check the model's spec sheet for Flicker Safe before you buy.

Use Reader Mode

  1. Open the monitor's on-screen menu.
  2. Choose Picture Mode or the Reader preset.
  3. Lower brightness to match the room.

Good to know

  • Flicker Safe is a hardware feature: no software can add it to a monitor that lacks it.

FAQ

Can an extension remove monitor flicker?

No. Flicker comes from the backlight; only hardware like LG's Flicker Safe changes it.

Why does flicker matter in migraine?

Studies found lower flicker-fusion thresholds and more headaches after flicker exposure in people with migraine.

Sources

  • LG: IPS LED Monitor with Flicker-Safe and Reader Mode (spec sheet, 2016). Link
  • Kowacs PA, Piovesan EJ, Werneck LC, et al. Critical flicker frequency in migraine: a controlled study in patients without prophylactic therapy. Cephalalgia 2005;25(5):339–343. Link
  • Miller NJ, Irvin L, Royer M, Strachan C. Visibility and annoyance of the phantom array effect varies with age and history of migraine. Lighting Res Technol, 2024. Link

Not a medical device and not medical advice. Migraine Mode is a screen-comfort tool: it does not diagnose, treat, cure or prevent migraine or any other condition, and it does not replace a doctor. Its settings are based on studies of light, colour, flicker, patterns and motion; the extension itself has not been clinically tested. When to see a doctor.