Causes
- Long-duration static content — the XB283K is a 28" IPS panel, and IPS panels are prone to temporary image retention (not permanent OLED burn-in): a bright HUD, taskbar, or browser window left on the same part of the screen for a long time leaves a faint ghost that slowly fades. It is a panel characteristic, not a defect.
- High brightness and max refresh over hours — driving the XB283K at 4K 144Hz at high brightness for long sessions makes the retention more visible and takes longer to clear, because the pixels are being held at a strong drive level for extended periods.
- Peaked OSD backlight/area settings — if the backlight or brightness is maxed in the OSD (common after a game or HDR session), the retained image shows up brighter and lingers longer.
How to Fix
- Lower the brightness — open the OSD and drop the brightness to a comfortable level (around 30–40% for SDR desktop use). This reduces the drive level that keeps the ghost visible.
- Run a moving image for a few minutes — play a full-screen screensaver, video, or YouTube color loop with lots of motion for 5–10 minutes. The changing pixels help the panel discharge the retained image faster.
- Power-cycle and rest the panel — turn the monitor off (or leave it in standby) for 10–15 minutes. This is usually enough for IPS afterimage to fade.
- Check OSD area/limit settings — open the OSD and confirm the backlight area / dynamic contrast / HDR settings are not stuck maxed out after a previous session; reset to defaults if needed.
- Use pixel-shift / screen-dimming if available — if your firmware exposes an OLED-care / pixel shift / auto-dimming option in the OSD, enable it. As a habit, use a screensaver or auto-hide the taskbar to avoid leaving identical static pixels up for hours, which prevents the ghost from returning.