Korea-based LED developer Lumens is developing a Micro-LED based HUD for the automotive aftermarket, and at CES the company demonstrated two prototypes, a Direct-HUD and a project-based one.

Lumens MicroLED HUD prototype (CES 2018)

Lumen's HUDs use three monochrome (RGB) Micro-LED panels, which combined can reach 100,000 nits. The project one uses a projection lens for the image magnification. The smaller HUD uses the Micro-LED directly as the output to the combiner.

Lumens original plan was to release this as a product by the end of 2017. Lumens is already behind its plans, and it will be interesting to see when it will actually be ready to launch a commercial product.