Cleaning a Screen Without Damaging the Coating
Most modern screens have an anti-glare or oleophobic coating that the wrong cleaner will strip. Here's what's actually safe.
The advice to "just use glass cleaner" is genuinely bad advice for most modern screens. Laptop, phone, tablet and many monitor displays have a thin anti-glare or oleophobic (finger-grease-resistant) coating on top of the glass, and the ammonia in most household glass cleaners breaks that coating down over time — leading to a hazy, patchy look that's often mistaken for a manufacturing defect but is actually cleaning damage.
What's actually safe
- A dry microfiber cloth, used first. Most everyday dust and light smudging comes off without any liquid at all — start here and stop here if it works.
- Distilled water if you need liquid — tap water can leave mineral spots as it dries. Spray a cloth, never the screen directly.
- A cleaner labelled for screens/electronics if you want something more than water — these are formulated without ammonia or alcohol specifically to be coating-safe.
- Gentle, single-direction wiping. Circular scrubbing concentrates pressure and can create pressure spots, especially on OLED panels.
What to avoid
- Ammonia-based glass cleaner (most generic household brands) — strips anti-glare coatings over repeated use.
- Isopropyl alcohol or acetone in any real concentration — same problem, faster.
- Paper towels or tissues — the fibres are abrasive enough to leave fine scratches over time, particularly on glossy coatings.
- Spraying liquid directly onto the screen — it can seep into the bezel and reach internal components, especially risky on phones and laptops.
- Pressing hard, on any panel, but especially OLED — undue pressure can cause visible marks that don't always go away.
Using the tool
The screen cleaning mode gives you a plain black, white or grey fullscreen field with no other UI in the way, which makes it much easier to actually see the dust and smudges you're trying to remove — and to confirm afterward that they're gone. Turn the display off (or lock it) before you physically wipe it; use the tool before and after, with the screen powered on, to check your work.