Provided are a display panel and a preparation method thereof, and a display apparatus. The display panel includes a first display region, and the first display region includes multiple sub-display regions and a first light transmittance region located between adjacent sub-display regions. Each first sub-display region of the multiple sub-display regions includes a first light-emitting element and a first filter unit disposed in a first light-emergence direction of the first light-emitting element. Each second sub-display region in the multiple sub-display regions includes a first collimating light extraction element disposed in a second light-emergence direction of the first light-emitting element and a second filter unit disposed in a light-emergence direction of the first collimating light extraction element.