MotionShine01 / Rooms
Dark without turning off
A second display that stays black while you watch, present or record, and wakes with Esc.
Free tool
Black screen, full screen in one click.
A plain black screen that fills your whole display. Darken a room without turning the computer off, keep a second monitor out of the way while you present or record, look for light bleed and bright stuck pixels, or check how deep a screen's black goes. White and any other colour are one click away.
Click for full screen
Esc leaves. Space or the arrow keys change the colour while it is full screen.
Light
It all happens in your browser. Nothing is uploaded or stored.
Ways to use it
A screen with nothing on it.
02 / Checking
Light bleed and stuck pixels
In a dark room, black shows light leaking at the edges of a panel and pixels stuck on a colour.
03 / Cleaning
Smudges show up
Fingerprints and streaks are easy to see on black. White shows dust better.
Questions
Good to know.
How do I leave full screen?
Press Esc. A timer can also leave by itself after 1 to 60 minutes.
Does a black screen save power?
On an OLED screen black pixels give off no light. On an LCD the backlight stays on, so a black screen there is mainly for darkness, not power.
Will the computer sleep?
While it is full screen the page asks to keep the screen awake, so it does not lock while you need it. Leave full screen to let it sleep.
Can I pick another colour?
Yes: white, warm white, daylight, red, green, blue, yellow, grey or any colour.