Black spot on screen
A black spot on a screen screen that shows on white and vanishes on black is inside the panel: a cluster of dead pixels (a sharp-edged tiny square), a pressure mark (soft-edged, where something pressed the panel), or dirt under the glass (moves if you press gently, on tablets and monitors only).
Test it now
Open the full-screen white test and look at the spot. Then black. Pixel and pressure damage disappears on black; surface marks do not. Then wipe once with a dry microfibre cloth and check white again.
What it is
A black spot on a screen screen that shows on white and vanishes on black is inside the panel: a cluster of dead pixels (a sharp-edged tiny square), a pressure mark (soft-edged, where something pressed the panel), or dirt under the glass (moves if you press gently, on tablets and monitors only). A mark that shows on black as well is on the surface: residue, a scratch, or damage to the glass.
Can it be fixed?
Dirt or residue: yes, clean it. A stuck pixel (coloured, not black): often, with the pixel fixer on the test page. Dead pixels and pressure marks: no — they are permanent, and the fix is a new panel. Most people live with a small one.
What to do
- Full-screen white, then black, then wipe and repeat.
- Sharp square, only on white: dead pixels — count them against the warranty policy.
- Soft blotch, only on white: pressure mark — photograph it and stop pressing on the screen.
- Shows on black too: surface — clean, or a screen polish for scratches.
What a repair costs
| United States | Phone display $80–380; laptop panel $100–300; monitor panel from $150 (often more than a new monitor) |
|---|---|
| India | Phone display ₹2,000–20,000; laptop panel ₹3,000–15,000; monitor panel ₹4,000–10,000 (a new monitor is often the better buy) |
Typical ranges from repair-shop and manufacturer price lists, 2026-09-06. Get two quotes; prices vary by model and city.
Warranty
Most makers replace a panel under warranty for physical panel faults that are not accidental damage; pressure marks, cracks and liquid damage are treated as accidental and are not covered. For dead pixels, each brand has a threshold (typically 3–5 bright or 5–8 dark pixels on a laptop; Dell's premium-panel guarantee replaces at one bright pixel).
A black spot is one of five things, and one test separates them
Black spot, black dot, black mark, black patch, dark blotch — people describe the same handful of faults in a dozen ways, and the words do not tell you which one you have. What tells you is how the spot behaves when the colour behind it changes.
Open the full-screen test above and step through white, black, red, green and blue. Then compare what you see against these five:
1. A dead pixel cluster. Stays black on every colour, including white. Sharp edged, tiny, usually a perfect dot. The pixels are electrically dead.
2. A cracked LCD layer. A black blot with hard edges, very often with thin dark lines or feathering running out of it. It stays on every colour and it grows over days or weeks. This is liquid crystal leaking inside the panel.
3. A pressure mark. Soft edges, no sharp boundary, usually visible on white and light greys and gone on black. The liquid crystal layer has been physically squashed and no longer twists evenly.
4. Backlight debris. A soft dark speck or smudge, again visible on light colours and invisible on black, that does not change if you press gently near it. Something is sitting between the backlight layers.
5. Dirt or a mark on the glass or protector. Moves or vanishes when you look from a different angle, or when you clean it. Always rule this out first — it costs nothing.
The one-minute check, in order
Clean it. A dry microfibre cloth, then a barely damp one. A surprising number of "black spots" are on the outside.
Look from an angle. A mark on the glass or on a screen protector shifts position as your viewing angle changes. A fault inside the panel does not move at all.
Run the colour test. Black on every colour means it is in the pixels or the liquid crystal. Visible on white but gone on black means it is a pressure mark or backlight debris. Changing with the picture means it is not a screen fault at all — it is the image.
Move the window. Drag a window under the spot. If the spot sits on top of everything and never moves, it is the screen. If the mark moves with the window, it is a rendering or graphics problem.
Try an external screen. On a laptop, plug into a monitor or TV. A clean external picture means the laptop panel is at fault, not the graphics chip.
Black dot, black spot, black mark, black patch — do they mean different things?
Not reliably, and it is worth saying plainly because these are searched as if they were different faults.
In practice people use dot for something very small and sharp, which is most often a dead pixel cluster; spot for anything from a pixel to a coin-sized area; mark for something with a soft edge, which is usually pressure; and patch for a larger, softer dark area, which is usually pressure or backlight. But nobody uses them consistently, and none of the words changes the diagnosis. The behaviour on the colour test does.
On a laptop screen
Laptops collect black spots for a specific reason: the lid closes onto the keyboard with very little clearance, and anything left in between is pressed into the panel. A charger cable, a pen, a USB stick, an over-tightened bag — all of them produce soft-edged dark marks exactly where the object sat. Those are pressure marks and they are permanent.
The second common cause is a knock to a corner or the lid, which can crack the LCD layer without cracking the outer glass at all. That is why a laptop can look undamaged and still show a spreading black blot.
HP Pavilion, 15s and Victus models and other thin consumer laptops are worth a specific note: their lids flex a great deal, so pressure damage from a closed bag is more common on them than on a heavier business machine. If a spot appeared after the laptop travelled in a rucksack, that is almost certainly what happened.
On a desktop monitor
A monitor is not squeezed the way a laptop lid is, so the causes split differently. A tiny fixed dot on a monitor is far more often a genuine dead or stuck pixel than pressure damage. A larger soft dark patch is usually debris or a defect in the backlight diffuser, which sits behind the panel and produces soft-edged shadows.
Before assuming the panel, do the one check people skip: unplug the video cable and leave the monitor on. Most monitors then show a "no signal" message on a clean backlight. If the spot is there on that empty screen, it is the monitor. If it is not, the fault is in the computer, the cable or the graphics card.
Pressure marks specifically
A pressure mark is the most common black or dark mark that is not a pixel fault, and it is the one people most often try to fix. The liquid crystal layer has been physically deformed and no longer twists light evenly in that spot.
The internet will tell you to rub it, press it back, or apply heat. Do not. Rubbing spreads the deformation and can crack the layer, turning a faint mark into a permanent blot. There is no safe way to reverse it. Very light, very recent marks sometimes fade slightly over weeks on their own; anything visible after a month is there for good.
Can a black spot be fixed?
Honestly, in most cases no — and this is the point where a lot of pages will keep you reading instead of telling you.
Dead pixels: no. A dead pixel is an electrical failure in the panel. No software, no app, no massage technique repairs it. A stuck pixel — one frozen on red, green or blue rather than black — is different and sometimes frees itself with a rapid colour cycle, which is what a pixel fixer does. Running one on a dead pixel does nothing at all.
Cracked LCD: no, and it spreads. The panel needs replacing, and sooner rather than later if you want to keep using the screen.
Pressure marks: no. Permanent deformation.
Backlight debris: sometimes. A repair shop can open the panel and clean between the layers. It is delicate work, it costs real money, and it is only worth it on an expensive monitor.
Dirt on the glass: yes, obviously — and it is worth ruling out properly before spending anything.
What a repair costs
Because a black spot is nearly always a panel fault, the price is the price of a panel.
On a laptop, a standard 1080p panel is a commodity part and the swap is routine work for any repair shop. Touch, high-refresh and OLED panels cost several times more, and on some thin machines the panel is bonded to the whole lid assembly, which raises the price sharply — always ask whether the quote covers the panel alone or the lid.
On a desktop monitor the economics are much worse. The panel is most of the value of the monitor, so a replacement panel on anything under about 27 inches usually costs more than a new monitor. Price a replacement before agreeing to a panel swap.
On a phone, display and digitiser are bonded together and replaced as one unit, so a black spot means a full display replacement.
Warranty: what makers actually accept
Two different rules apply and it matters which one your spot falls under.
Dead pixels are covered by a published threshold. Most makers follow ISO 9241-307 Class II — roughly 2 bright and 2 dark pixels per million, so about 4 of each on a Full HD panel. Dell’s Premium Panel Guarantee and some Samsung and LG monitor lines replace at a single bright pixel. Apple publishes no number and assesses case by case. One dead pixel on a mid-range laptop will usually not be replaced; several will.
Pressure marks, cracks and impact are treated as accidental damage by every maker, and are not covered by a standard warranty even when the outside of the machine is unmarked. AppleCare+ and similar accidental-damage plans do cover them, with an excess.
Whichever applies: photograph the spot on a white screen and on a black screen, and note the date, before you contact anyone. That is the evidence a warranty claim turns on.
When to stop and replace instead
A single small dead pixel near an edge is a cosmetic annoyance and most people stop noticing it within a week. It is not worth a repair and not worth the risk of a panel swap going wrong.
A spot that is growing is a different matter — that is a cracked LCD layer and it will keep spreading until the panel is unusable. If the machine is otherwise sound, replace the panel now rather than watching it get worse.
On a monitor, get a written quote and compare it against a new monitor before agreeing to anything. On a laptop more than five or six years old, a panel replacement can approach the resale value of the whole machine.
What a repair costs
United States: Phone display $80–380; laptop panel $100–300; monitor panel from $150 (often more than a new monitor)
India: Phone display ₹2,000–20,000; laptop panel ₹3,000–15,000; monitor panel ₹4,000–10,000 (a new monitor is often the better buy)
Warranty
Most makers replace a panel under warranty for physical panel faults that are not accidental damage; pressure marks, cracks and liquid damage are treated as accidental and are not covered. For dead pixels, each brand has a threshold (typically 3–5 bright or 5–8 dark pixels on a laptop; Dell's premium-panel guarantee replaces at one bright pixel).
Frequently asked questions
What is the black spot on my screen?
One of five things: a dead pixel cluster, a cracked LCD layer, a pressure mark, debris in the backlight, or dirt on the glass. Step through white, black, red, green and blue full screen. Black on every colour means pixels or a crack. Visible on white but gone on black means pressure or backlight. Moving with your viewing angle means it is on the outside.
Can a black spot on a screen be fixed?
Usually not. Dead pixels, cracked LCD layers and pressure marks are all permanent and need a new panel. Debris inside the backlight can sometimes be cleaned by a repair shop. Dirt on the glass cleans off — rule that out first.
Is a black dot different from a black spot?
Not in any technical sense. People tend to say dot for something tiny and sharp, which is usually a dead pixel, and mark or patch for something soft-edged, which is usually pressure. The words are used inconsistently and none of them changes the diagnosis. The colour test does.
Why is the black spot on my laptop screen getting bigger?
A spreading black area is a cracked LCD layer with liquid crystal leaking inside the panel. It will keep growing and cannot be stopped. If the laptop is otherwise sound, replace the panel before it covers more of the screen.
Will a dead pixel be replaced under warranty?
It depends on the count and the maker. Most follow ISO 9241-307 Class II — about 4 dark or bright pixels on a Full HD panel. Dell’s Premium Panel Guarantee and some Samsung and LG monitors replace at a single bright pixel. Apple publishes no threshold. Pressure and impact damage is never covered as standard.
Can I press or rub a pressure mark out of a screen?
No, and rubbing makes it worse. The liquid crystal layer has been physically deformed; pressing spreads the damage and can crack the layer. Very faint recent marks occasionally fade a little on their own. Anything still visible after a month is permanent.
Related
Also free on Toolsitz: Screen Test Tool — no login.