Is there a way to capture a camera display screen view and create a sprite at 1:1 ratio size?

What I am trying to figure out is: how to capture the cameras display view and create a sprite that is 1:1 ratio to the screen size.

So the expected result should be is that when I place the sprite object at the same position as the camera, it should cover the whole screen view of the camera with a 1:1 ratio (showing the frame that was when the sprite was created. Sorting is simple, I can set that.).