Mikroelektronika has a lots of code examples for FTDI graphics chips. They also have displays and modules that use these drivers. I have not used FT800, when I found the Nextion displays I decided to not pursue the FTDI route.
The Nextion displays have a built in graphics controller. They are easy to add to existing systems. Great for user interfaces not meant for video type applications. I guess it would depend on your price point?
Thanks for that. I hadn't looked at the Nextion displays, but now you mentioned it I took a look. They are a bit expensive - $44 for the 4.3" version. That would be OK for prototypes, but not for production. The FT800 is around $4 - $5, and we have a 4.3" touchscreen display we use in another product, that we buy in volume for less than $12.
https://www.buydisplay.com/default/tft-4-3-inch-lcd-module-touchscreen-display-for-mp4-gps-480x272Price-wise the FT800+LCD makes for a reasonable solution.
I'll check out the Mikroelektronika examples.