Like its QLED ancestors, the Neo QLED QN90A also uses a VAVertical Alignment, type of LCD Panel panel, which produces a terrific contrast ratio of 26000:1 and thus deep and even blacks can be displayed.
Normally, however, this type of panel has a rather narrow viewing angle, which is enormously extended in the QN90A by Samsung’s Ultra Viewing Angle layer. Therefore, even slanted viewing angles do not cause it any problems.
In addition, reflections are minimized by an anti glare coating, which also gives the TV a big advantage in brighter surrounding or with light sources in the room. Samsung shows all their know-how here – there are only a few in this field that can rival the QN90A.
The mini LEDs used do not only have a positive effect on the contrast ratio. Since considerably more LEDs can be accommodated in the backlight, it is hardly surprising that the QN90A can become exceedingly bright.
It reaches a peak brightness of 1800Nits when displaying HDRHigh Dynamic Range – image/video with more dynamic range (contrast range) material, which is easily enough to display even very bright and delicate highlights well. Due to this and the very wide color space, HDR material is presented excellently overall – even in bright surroundings.
In addition, more LEDs can also be divided into more dimming zones. Thus, the Neo QLED models have 576 zones in 55 inches and 792 zones in 65 inches, which should theoretically result in a more precise local dimming – but the dimming algorithm used should not be ignored here, which is also impressive.
Disturbing dimming effects such as bleeding are greatly minimized in the QN90A, since a misbehavior of individual LEDs is no longer as significant since they only have to illuminate a smaller area.
Samsung still does not have Dolby VisionDynamic HDR-format with a color depth of up to 12 Bits and Mastering of up to 10,000 Nits in 2021. Instead, the competing format HDR10+ is supported. However, since new content that supports HDR10+ is becoming less and less, the lack of Dolby Vision is slowly becoming problematic. Unfortunately, the HDR10+ Adaptive, which is the Dolby Vision IQ of the HDR10+ format, is only available in the 8K models.
However, we also have to mention that the QN90A artificially brightens HDR material. Due to the image processing, especially dark scenes look much brighter than intended by the filmmakers. In return, dark details also become more recognizable. What is better is up to the viewer to decide. In any case, the dark atmosphere, like in horror or thriller movies, could suffer a bit.