Screen Soft Light / Specimen / BLACK SCREEN #111111 · RGB 17 · 17 · 17

No. 001 · BLACK SCREEN

Full black screen for OLED care, pixel testing and dark mode

  • 01 OLED-friendly display
  • 02 Stuck pixel detection
  • 03 Battery saving mode

Use this free online black screen to test for stuck pixels, protect OLED displays from burn-in, create a dark ambient environment, or save battery on AMOLED devices. Go fullscreen for a pure black surface across your entire display.

Open black screen
Press F to go fullscreen · Press Esc to exit
Enter HEX #111111 210 × 297 mm
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§ 01

OLED screen care and burn-in prevention

OLED and AMOLED screens can develop ghost images when static content stays on screen too long. A full black screen turns off individual pixels on these displays, giving them a rest. Use it periodically after long sessions with static UI elements like navigation bars or status icons.

§ 02

Dead pixels show up on white screens, but stuck pixels — those that stay bright when they should be off — only reveal themselves on a black background.

Stuck and hot pixel detection

Dead pixels show up on white screens, but stuck pixels — those that stay bright when they should be off — only reveal themselves on a black background. Go fullscreen, darken your room, and slowly scan for any colored or white dots. Test alongside the white screen for a complete pixel check.

§ 03

Dark ambient and focus mode

A full black screen is useful for meditation, sleep environments, or simply turning a device into a dark surface without putting it to sleep. On OLED devices, this also saves significant battery since black pixels draw no power.

§ 04

OLED screen care and burn-in prevention

OLED displays can develop permanent image retention (burn-in) when static elements are displayed for extended periods. Running a full black screen on an OLED display effectively turns off those pixels, which can help rest the panel. If you suspect early burn-in, display a solid gray screen to check for faint shadows of static UI elements like status bars or navigation buttons.

Procedure

Three moves to peak output

  1. 01

    Open the black screen

    Click the button below to set the tool to a dark display with minimum brightness.

  2. 02

    Go fullscreen

    Press the fullscreen button or the F key to fill your entire screen with black.

  3. 03

    Scan for bright pixels

    Look carefully across the surface for any tiny bright dots that indicate stuck or hot pixels.

Inquiries

Questions worth asking

Q.01 What is a black screen used for?
A full black screen is used for OLED burn-in prevention, dead bright pixel detection, dark ambient lighting, battery saving on OLED devices, meditation and focus sessions, and testing monitor contrast.
Q.02 Does a black screen save battery?
On OLED and AMOLED displays, yes. Black pixels are turned off entirely on these screens, which reduces power draw compared to a bright display.
Q.03 How do I check for stuck pixels with a black screen?
Open this page, go fullscreen, and look for any bright dots on the dark surface. Stuck pixels show up as tiny colored or white spots that stay lit on a pure black background.
Q.04 Does a black screen on OLED actually turn off the pixels?
Yes. Unlike LCD panels which use a backlight, OLED pixels are individually lit. A true black pixel on an OLED display is completely off, consuming no power and producing no light.
Cross-reference

Try adjacent plates

Enough specimen notes.

Go make the screen behave.

Open black screen