There are plenty of external displays for notebooks available today, most of which feature a rather modest resolution, as high-resolution external LCDs with touch support are hard to find.  

That may be about to change, as DFRobot has released its new 12.5-inch external display for laptops that not only features a 4K resolution and accurate colors, but is also supports touch. The new release also has mini-HDMI as well as USB-C inputs to make it easier to attach to miniature Raspberry Pi as well as other single-board computers (SBCs) or modern notebooks with USB-C ports. 

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