In case you've changed a wallpaper, only to notice that the top-half of your iPhone's lock screen has gotten blurry, you're not alone — and there's nothing wrong with your iPhone's screen.

These wallpapers are available in a variety of shades, including red, orange, yellow, green, blue, purple, pink, and white. Save the wallpapers to your iPhone ... enable the blur effect during ...

As sharp as the display on more recent models of the iPhone may be ... phone or exit an app to find that your Home Screen wallpaper is blurry, or that the entire screen looks out of focus.