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Black Screen

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Quick answer

What is the Black Screen?

A black screen fills your entire display with solid black (#000000). Click Fullscreen or press F and every pixel shows the same color, with no toolbars or distractions. On OLED screens the pixels switch off completely, so it is the quickest way to hide what is on screen, check backlight bleed or save power.

Key features

Pure black at #000000, or any custom hex color
One-click fullscreen with brightness control
Keeps the screen awake in fullscreen (Screen Wake Lock)
Free PNG download from 720p up to 8K

Why use it

Reveals backlight bleed, IPS glow and bright stuck pixels
Works instantly on phones, laptops, monitors and smart TVs
No app, no sign-up and nothing to install

Built and tested by Whitson Rao

Black Screen: solid black (#000000) full HD 1920×1080 image — Black Screen · #000000 · 1920 × 1080 PNG ↓

Use cases

Common uses

Backlight bleed & IPS glow
In a dark room, a black screen shows any light leaking around the edges of an LCD panel.
Stuck pixel detection
Stuck pixels that stay lit show up clearly as bright dots on a solid black background.
OLED contrast check
OLED pixels switch fully off on true black, so you can check for uniformity and true black levels.
Dim without sleeping
Keep a computer awake during a download or presentation while the screen stays dark.

Black Screen guide

Getting the most from a black screen

What a black screen reveals

On an LCD, black is the hardest color to show well, because the backlight stays on behind the panel. In a dark room, a fullscreen black image makes any light leaking around the edges obvious: bright patches near the corners are backlight bleed, while a glow that shifts as you move your head is IPS glow. Uneven, cloudy patches in the middle are clouding.

Black is also the best background for spotting pixels that never turn off. A single lit white, red, green or blue dot on black is a hot or stuck pixel. To check every color, step through the dead pixel test.

Black on OLED screens

OLED pixels make their own light, so on pure black (#000000) they switch off completely. That gives true black with no glow and uses almost no power for the black area. If you are deciding between panel types, OLED vs LCD explains the trade-offs. For a near-black check of OLED uniformity, use the OLED gray test instead, because dark gray shows banding and tinting that pure black hides.

How to check for bleed and glow

Turn the room lights off, set the display to about 50% brightness and open the black screen in fullscreen. Let your eyes adjust for a minute, then look straight at the screen from your normal seating position. Photos exaggerate bleed, so judge with your eyes rather than your phone camera.

Black Screen FAQ

Does a black screen save battery?

On OLED phones, tablets and laptops, yes: black pixels are switched off. On LCD screens the backlight stays on, so a black screen saves very little. Lowering brightness saves more on LCDs.

Will a black screen keep my computer awake?

In fullscreen, supported browsers keep the screen on while the page is open. Your operating system’s sleep settings still apply when you leave fullscreen.

Is some backlight bleed normal?

A little bleed at the edges is common on LCD monitors and usually only visible on black in a dark room. If it shows up in everyday content, check your warranty.

Sources and further reading

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