[twl] has a board that does just that, converting HDMI to something these displays can understand, and providing a framebuffer so these displays can be written to through small microcontrollers.

15.6" FHD Portable Monitor - Featuring a 1920*1080P resolution, 178°FULL viewing angle, HDR, and Low Blue Light Super Clear IPS A-grade screen ... C ports and 1 MINI HDMI port.

A smart projector works in basically the same way a smart television does. Turn it on, give it a moment to warm up, and you have a home screen preloaded with streamers and FAST TV services. Netflix, ...