I am an inexperienced student and I would buy a 5-inch screen , however, do not know what should I choose and how do I add it to udoo neo , can you give me a hand? For example, can I use this one https://www.adafruit.com/products/1680 ?
Dear Duccio, you should recompile the kernel for this task, and just to warn you: this is not a trivial task. This link will be useful to you: http://www.udoo.org/docs-neo/Kernel_Hacking/Compile_the_kernel.html
It depends on the connection. HDMI or LVDS? For LVDS you should recompile the kernel. HDMI is supposed to work by default regardless of the screen.
ok, another question: is Adafruit DPI Display Kippah compatible with UDOO? If so, I should recompile the kernel if I buy a TFT display?
Adafruit DPI Display Kippah is a shield for Raspberry Pi. Since Raspberry Pi has a different pinout it is unlikely that you will be able to use it without any tinkering. Anyway I suggest just to try HDMI. Or eventually LVDS with our displays. There are also other compatible screens, but there's no updated list. Guess you should search a bit in the forum for these screens.