Difference between launch image and splash screen

Question

I was going through iOS Human Interface Guidelines.

It was mentioned as

1. Display a launch image that closely resembles the first sc

Answer 1

Launch Image is displayed when the app loads. It is designed to make your app feel faster by showing something resembling the interface that will be loaded as quickly as possible.

Splash screen means, that you display a view with about information as your start screen. Your User should use your app immediately.