Here's what you can do:
Assuming you already have a model of the monitor you are using
Put a box with the same dimensions as your screen and a height of just 1 mm just in front of the screen.
Make a video source (NDI or such) or a short movie clip in the video player with the content that you need to see on the prompter screen
Add a material
Choose a Video player or a video input as a texture
Put the luminance on 600 nits
Add the material to your surface
Group the model and the "screen" together