My (OLED) pixel 7 has a polarized glass that is brightest at -45° and opaque at 45° from vertical with my polarized sunglasses, so that works out well. The IPS

My (OLED) pixel 7 has a polarized glass that is brightest at -45° and opaque at 45° from vertical with my polarized sunglasses, so that works out well. The IPS iPhone SE 2000 has a fancy polarizer that is never fully opaque in any orientation. I've seen this on other phones too. I believe it's pixel-level polarization. Some of the screens might be different on each subpixel, making the screen not-blue for example when you're wearing polarized sunglasses.