text: You're talking about Wi-Fi on a laptop/notebook right?\n\nActually, a wireless signal has nothing to do with your screen.  At least it shouldn't.  \n\nUnless you have one of those special laptop/notebook displays that have "BrightView" (or something to that extent), then you're probably going to have problems seeing the screen regardless.  I'd recommend sitting in the shade or face towards the sun.  Anything so the sunlight doesn't bounce off the screen.\n\nPlay with the contrast, balance, and brightness of your display as well.  That should help.