I have the same screen in 12 inch and 1920 x 720 resolution.
All you need to do is create a bootanimation.zip and splash.img files and put them on a FAT32 formatted thumb drive less than 32 GB in size.
Create a folder called OEM on the thumb drive and put both files in there.
Then insert the thumb drive into one of the USB ports from the display.
After a few seconds a message will be displayed "Boot animation modified".
Removed the thumb drive and restart the display.
You can go to the "profile import" menu option and select "restart".
Sample Mercedes boot animation for 1920 x 720 screen is attached.
More information here:
10.25" Android 9/10 HU theming and discussion
f30.bimmerpost.com