Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Is there a laptop where you can turn off the backlight of the screen completely?

I have a Pixel Qi tablet where you can turn off the backlight and I use that function all the time. Really saves the eyes if you read or write a lot.

Now, I would like to have that functionality in a laptop too, preferably with a 13.3 inch laptop screen or so.

I don't know how well the Pixel Qi company is doing, haven't seen a lot of updates from they're lately. Maybe there's another company which manufactures a similar screen that you can tip me about?

Again, I'm looking for a laptop where you can turn off the backlight of the screen entirely. Perhaps a Mirasol screen, or did that product turn into vaporware too?

The technology behind is somewhat irrelevant - what's important is that I want to be able to turn off the backlight.

Any tips?

share|improve this question

closed as off topic by Dave M, Ƭᴇcʜιᴇ007, BBlake, Renan, Indrek Oct 11 '12 at 17:51

Questions on Super User are expected to relate to computer software or computer hardware within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

    

1 Answer 1

Although shopping requests/recommendations are off-topic for SU, and I think finding a notebook with this specific functionality would be impossible (never seen or heard of one personally), here's a generic hack that could work with many notebooks:

  • Open your notebook's LCD shell.
  • Find the two power lines that run to the LCD backlight's power inverter (assuming not LED backlit).
  • Put a small toggle switch inline with one of the wires.
  • Mount the toggle switch through the chassis/shell someplace.
  • Profit. :)

Inverter

small toggle

share|improve this answer
    
Is it really that easy? Are you saying that Pixel Qi technology does not add anything but a switch to screens? Are you certain that a normal screen would really display anything at all if the backlight were completely turned off. –  Joey Hammer Oct 11 '12 at 17:07
    
I'm unfamilliar with Pixel Qi's products. My general experience is, if you turn off the backlight, you aren't reading anything (without being on a certain angle so room light reflects off it). :) –  Ƭᴇcʜιᴇ007 Oct 11 '12 at 17:16
    
That's how I use the tablet right now, I can work on it using reflected light only. The question is whether your technique would produce a similar result to using a Pixel Qi screen or if it would differ somewhat : ) –  Joey Hammer Oct 12 '12 at 3:29

Not the answer you're looking for? Browse other questions tagged or ask your own question.