Watching Football on TV (LED/OLED)
In this case, 790 are the number of leds that the tv has. The higher the number, the better the contrast between light and dark scenes. You'll also have less blooming with more dimming zones.
here is an image I found
The image on the left would be what you would view, image on the right is a representation of the clusters of dimming zones turning on/off. The more dimming zones you have, the better contrast you have.
here is an image comparing Samsung's top 4k QLED model last year vs their QN90a. The exposure is blown way out, but you can visually see a difference between the bloom having 480 zones vs 790. There is much less "halo" effect bleeding into the dark areas (on OLED there would be 0 bloom)
In the case of the Samsung, the number 790 is not specifically about nits but it is kind of related to nits. Because those little leds also light up the panel, which in turn is where you get your nits value. Nits is not a static number either, it depends on the scene. Typically LED tvs have higher nits overall and thus peak brightness vs OLED, all of which helps if your room has a lot of natural light/windows in the room
In this case, 790 are the number of leds that the tv has. The higher the number, the better the contrast between light and dark scenes. You'll also have less blooming with more dimming zones.
here is an image I found
The image on the left would be what you would view, image on the right is a representation of the clusters of dimming zones turning on/off. The more dimming zones you have, the better contrast you have.
here is an image comparing Samsung's top 4k QLED model last year vs their QN90a. The exposure is blown way out, but you can visually see a difference between the bloom having 480 zones vs 790. There is much less "halo" effect bleeding into the dark areas (on OLED there would be 0 bloom)
In the case of the Samsung, the number 790 is not specifically about nits but it is kind of related to nits. Because those little leds also light up the panel, which in turn is where you get your nits value. Nits is not a static number either, it depends on the scene. Typically LED tvs have higher nits overall and thus peak brightness vs OLED, all of which helps if your room has a lot of natural light/windows in the room