Can't see laptop screen with sunglasses?

Qu
- in Lenovo
25

I assume that this question will seem a bit strange, but if I work on the laptop and still want to enjoy the nice weather, I like to sit in the garden. Unfortunately, it is so bright here that I need sunglasses if I don't want to be completely in the shade.

But as soon as I put on my sunglasses, my screen suddenly turns black, as if the laptop was switched off.

When I first noticed this, I was already wearing my sunglasses and wanted to get the laptop out of standby - I thought it was broken because the battery was charged and it just didn't seem to start up. In fact, it was the sunglasses and I really felt a bit stupid when I noticed that I had put Dussel into standby about 20 times and got it out again without being able to see any visual change.

But now to my question… Is there any tip, can you do something in the settings so that I can see something with sunglasses? I'm typing relatively blind right now, without sunglasses, but I'm still blinded by the sunlight and the weather is just too nice to squat inside.

Here are a few key points:

I have Lenovo IdeaPad S340, Windows 10, the display is matte, I hope that helps somehow…

Je

No you can't do anything, you have to have an LED display and no LC display

wo

Other than setting the brightness to maximum, I can't think of anything: /

He
1

Your sunglasses are polarized.

Imagine a polarization filter like a grid through which the light rays can only pass in a certain direction.

Flat screens are also polarized. So if the pole filter in the laptop only lets the light through in one direction | and the one in the glasses only light in the other direction - then of course nothing comes to your eyes anymore.

He

LED only describes the technology of the background lighting. It is still an LCD display.

Qu

Okej, so except for new, non-polarized sunglasses, I have no options?

ma

Turn your head to the side, but it is difficult to work.

Qu

Even if I turn the laptop myself, I can see something, but maybe with 5-10% of the normal screen brightness.

He

Properly polarized sunglasses can work. Alternatively, you can also remove the polarization filter from the laptop, this would have the effect that all other people would only see a permanently white screen and only with sunglasses can you see the picture. Or you turn your notebook 90 ° so that the screen is in portrait format.

Je

Yeah right. By this I simply mean that the LED enables precise lighting and higher brightness. Otherwise there's no LCD display but only an LC display.

ma

Light is "swallowed" by the grids

Another pair of glasses is the only solution

Qu
-1

XD No, I would prefer not to, because the guarantee will still lapse and I would also like to be able to work indoors. XD

He

You could, with sunglasses.

Qu

Sure xD Nah let's go.

He

Yes, use of words, no mistakes. But you would have to increase the brightness of the light source by a factor of 400 so that enough light comes through both pole filters. This is possible with LEDs, but requires separate cooling of the display (the LEDs) and the battery life would then be rather modest.

Je

That's interesting, I've never heard of it, why should laptop screens be polarized?

Je

Ui, i wasn't aware that screen polarized light emits, why is that?

He

Not only in laptops, in general in all LCDs this is necessary for the function because the liquid crystals only polarize the light and depending on how well this polarization matches the polarization of the polarizing filter, the pixel is lighter or darker.

Je

Many thanks

He

This pole filter does not exist with OLED or with old picture tubes. They also work with sunglasses

Je

Do OLEDs and QLED behave the same here?

Je

https://blog.physik.de/polarisation-eines-lcd-bildschirms

Maybe there are foils to depolarize

He

QLED is again a subspecies of LCD technology only with a special background lighting that does not contain monochromatic blue light. OLEDs, on the other hand, have no background lighting, but the pixels themselves glow.

Je

Then OLED is probably the future and would be the recommendation for the questioner?

He

OLED has several advantages, for example the contrast and the black values. But even glowing pixels also have negative sides. With OLEDs, the image can burn in. This happens especially when bright things are permanently visible on the same place on the screen. Does your PC have a background image with lots of white dots? Assume that you always see the points after a few months. This is no problem for televisions, which usually do not display a still image, because the logo of the favorite station burns in at most. For computers on which many parts of the image are static (task bar, buttons in programs, …) this is less cool.

Je

I just learned something right here, thanks for that! Now it is completely clear to me why my cell phone is great for the OLED battery, why my OLED TV immediately has a moving screen saver and why I will not buy an OLED for the PC!