If you are looking for a small capacitive touch screen display to put on your BeagleBone Black, take a look at Manga Screen! There are some great capes with LCDs, but I think this can be a nice supplement if you want freedom to place your screen in small spaces and also use the cape spot for a different cape. Disclaimer: I made this.
https://www.kickstarter.com/projects/1924187374/manga-screen-multi-touch-43-lcd