How to unlock my new iPad by just sliding to the right?
This isn't possible. Enabling Touch ID enables a passcode, which must be entered on the lock screen. If you do not wish to have a passcode, then you must disable Touch ID too. Also, because you have Touch ID enabled, you are unable to adjust the Require Passcode time in Settings → Touch ID &amp; Passcode → Require Passcode.

The only workaround is to go to Settings → Touch ID &amp; Passcode, disable iPhone Unlock, then set Require Passcode to After 1 hour. This means that you won't be prompted for a passcode if you use your device less than an hour after you last used it.

Video demonstration of workaround: Touch ID Require Passcode Timer