Originally Posted by DLCPhoto
The image is scaled (*not* 'stretched') to fill the 4096 pixel width of the chip. To maintain the proper Aspect Ratio for the content, there is slight cropping of the upper and lower part of the image. You do lose the 1:1 pixel mapping (most reports I've read indicate no visible downside to this), but there is no stretching of the picture.
So if you're watching 16:9 content, on a 16:9 screen, with Zoom enabled in the menu (which results in 17:9 Aspect Ratio output), there will be narrow bars on the top and bottom, since 16:9 and 17:9 are different aspect ratios, with 17:9 slightly wider and narrower than 16:9.
And if you're watching 2.35:1 content, on a 16:9 screen, there will still be black bars top and bottom as expected (since 2.35:1 is obviously much wider than 16:9), but because of the scaling, they will be slightly narrower than they would have been without the 'Zoom' menu choice.
What you gain with the 'Zoom' menu option, is a bump in brightness, since the entire chip is being used to produce the image, the full 4096 pixel width, and not just the 3840 pixel width.
This is the part that's confusing me. The image is scaled not stretched, so the aspect doesnt change. If your screen is 16:9 and you scale to 16:9 res, then you reduce the image position so that the overflow for 17:9 is off the sides of the screen. I think we agree. Then if you want to go full panel you reduce the overall image so that the 17:9 image width fits the 16:9 screen. I think we agree here, too. When you display a 16:9 image on that, the top and bottom will show up as bars because the panel is not capable of displaying the full image. So some of the image is cut off. In this case 17:9 panel gives 16:9 with black bars on top and bottom because the panel cant display those.
Ok on 2.35:1 image when you go 16:9 scaling, the width of the screen is filled and the top is black bars for the remainder of the aspect.
If you scale to 17:9 then you reduce the image to fit your screen. The width fits and the black bars on top are the same since you are scaling not zooming.
You do gain ~100 lumens in brightness but its likely not to be noticeable.
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