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https://www.rtings.com/tv/review ... d#page-test-results
Update 08/02/2021: We retested the peak brightness with the latest firmware, version 1511. It's considerably brighter in real content, as well as most larger scenes, but small highlights aren't as bright as before. During our test runs with the new firmware we encountered issues with overheating, and had to break up our tests and let the TV cool down between each run. It overheated to the point that it started to impact picture quality.
The Samsung QN900A has superb HDR brightness. However, it's not as good overall as on the Samsung QN800A 8k QLED. It gets bright enough to bring out highlights in HDR content, but as with SDR, the ABL is really aggressive, causing the screen to dim when displaying large areas of brightness. Also, as shown in the EOTF, the overall brightness of scenes is a bit brighter than it should be.
We measured HDR brightness before calibration in the 'Movie HDR' Picture Mode with Brightness and Contrast at max, Color Tone set to 'Warm2', Local Dimming on 'High', and all other image processing disabled.
If you want to make HDR even brighter, you can set Contrast Enhancer to 'High' and ST.2084 to max, which results in this EOTF. The brightest possible image we recorded was 3133 nits. To hit that, we used the 'Dynamic HDR' mode with both Local Dimming and Contrast Enhancer set to 'High'. |
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發表於 2022-5-13 13:51
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