How to make the passcode lock screen on iphone 5 non blury?

How do you make the passcode lock screen on iphone 5 non blury?

Jailbreak

It's not blurry. Or do you mean the wallpaper behind the numbers gives you a distorted look? You need to change the lock screen wallpaper in Settings > Wallpaper Brightness. Choose the one on the left. Best luck.

Search for an app that'll do that, but you might need to Jailbreak first.