https://arstechnica.com/gadgets/2022/04/this-adorable-1-inch-hdmi-monitor-doesnt-need-a-power-supply/

When you think of a display that connects to its source over HDMI, you probably think of the TV in your living room, your desktop monitor, or maybe even a smaller display, like a portable monitor. You probably don't think of an OLED PC monitor that measures 0.96 of an inch diagonally.

While acknowledging the limited uses for a tiny HDMI PC monitor, maker mitxela had the urge to get a 128×68 dot matrix OLED screen up and running as a PC monitor that connects directly to its system. The maker described the creation as the "smallest and worst HDMI display ever."