It's the same with TVs. If you are watching in a very bright environment you need higher light output from your TV. If you are watching in a veyr dark environment you don't need a lot to reproduce a decent picture.
So I'm afraid there is no definite answer to your question. It all depends.
Dolby's research suggests that an ideal luminance range for a TV that would accomodate both daytime and nighttime viewing is: 0.00 nits - 10000 nits. We are nowhere near that.
All nits are not created equal either. Edge-lit LED LCDs start to raise black levels visible when going beyond even 200 nits.