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Just learned about bias lighting... If you use your PC in the dark, IT'S AMAZING.

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LeMonarque 49 months ago

Bias lighting is where you put a light behind a display, like a PC monitor or a TV, and the benefits are twofold:

1) Save your eyes.
2) See better images than your monitor is capable of producing.


It looks nice, but it's actually a "healthier" way to use your computer, as strange as that sounds. If you use your computer in complete darkness a lot, the sudden drop in luminance from your monitor to the surrounding darkness creates a sharp contrast that your eyes strain to manage.

At the same time as your body wants to close your irises looking at the bright monitor, it wants to open them to view your dark surroundings. By using a bias light, you bridge the contrast between your monitor and it's surrounding and reduce eye strain while keeping your environment relatively dark like you wanted. Since your whole wish is to use a computer in the dark, it's best done with LEDs so that you just get a small amount of light to define the monitor instead of the huge wash that a lamp can cause.

The second benefit is what gives it the name "bias" lighting. The color of the light used behind the display changes how your brain interprets the colors from the display itself. ie, you bias your brain's color interpretation. If you shine an orange light behind the monitor, you perceive everything on-screen as slightly more orange. Same with every bias color, including white.

White will actually make your monitor look better, because the black bezel separating the bias light and your image is now interpreted as a reference black, while the white bias light becomes your reference white. You get a true black and a true white for perfect color balance, which can fake your brain into perceiving a better image than your monitor is actually capable of producing.

The last point about biasing with white LEDs is especially useful for people who edit photos, videos, or want to render realistic 3D scenes for CGI or architecture, because your brain is perceiving more accurate color information. It helps reduce the impact of whatever imperfections your monitor has. In terms of color accuracy, working in the dark is actually better than using desk lamps or fan lights, since those lights are usually warm and cast a warm glow on the display. But that again leads to eye strain, which is solved by bias lighting, which then improves color accuracy even more.

Comments Sorted by:

mzimmerman23 2 points 49 months ago

Thanks for the info, now I have to get that LED strip I've been watching to see if it really works!

LeMonarque submitter 3 Builds 2 points 49 months ago

Antec sells an LED strip specifically for bias lighting :)

It's called the Halo 6 and it's powered by USB, which is super convenient.

Eschaton 6 Builds 2 points 49 months ago

wow, reminds me of f.lux, which is another program I use to help me go to bed at a reasonable time. Maybe bias lighting can assist with that...

Thanks man!

LeMonarque submitter 3 Builds 1 point 49 months ago

No problem! I've heard of f.lux before but never really paid attention to it since it throws off color accuracy. I may look into it for when I'm not doing work though.

Eschaton 6 Builds 1 point 49 months ago

It does, but your eyes adjust pretty well. I don't even notice it's on anymore, because color is pretty relative.

Teejers 3 Builds 1 point 49 months ago

Here's a successful Kickstarter campaign for content driven bias lighting. Thinking of picking on up myself.


Alternatively, you can create your own by following: http://www.instructables.com/id/Build-your-own-Ambilight-clone-with-the-Raspberry-/

Warlock 1 point 49 months ago

For those who wish to apply it to their TV

Moonraid 1 point 49 months ago

I like my dark room.. more like burns my eyes. X.X

basedoge 1 point 48 months ago

My eyes are dead :(