this post was submitted on 25 May 2026
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On an LCD screen itβs using less power to not block the light from coming through.
How do I know which one my monitor is?
Is it OLED?
If not it's an LCD.
It used to be that if something was one or two colors, it might be an OLED, like the sansa clip mp3 player.
These days, how do you tell if it is OLED or LCD? Or do you just have to know?
You'd know if your desktop monitor was oled. Especially with how much they cost. Phones not so much since a lot of mid range ones will be OLED.
Easiest method is open a black image. Is the screen 100% off, no light being emitted by it? If there's light it's LCD. If there's no light then it's OLED, or a fancy LCD with dimming zones. Use your (white) cursor to activate the zones and see if you see light squares. If you can't then it's OLED, or mini/micro LED. And once again you'd probably know it's one of the two by the price you paid, or it's a MacBook Pro.
Ahh, thanks! So that's how my phone screen can be so dark, but then have one line of white text on it for the clock. I always thought that was kind of strange. Must be OLED, I guess.