Use gaze tracking to have it change when nobody's looking at it. It's a different picture now and then but you'll never catch it changing no matter how long you watch.
https://www.claybavor.com/?p=407
Obviously they took a pretty expensive and power intensive route, but the end result is absolutely phenomenal
Go one step further and it can be even better; have them also emit air with different temperatures and smells, so that I can have one wall displaying an open field, for example, complete with the feeling of a fresh scented breeze coming from that direction.
He was not so sanguine about it, as he saw it as a potential pitfall which could lead people to lose their humanity in a cloud of vague emotions and indistinct narratives. It would be more pernicious than a sensory deprivation chamber because the total immersion would lull its users into a state of unfocused, passive complacency. By contrast, wrestling with a worthwhile book would sharpen the mind and will by making the reader aspire to meet the standards of the text.
Don't blink!
Honestly, I love the idea of a van Goph with a massive, subtly moving image.