Author Topic: Samsung 43NU7100 & Sony 43X750F Review x2: Semi-Glossy 4K VA & IPS  (Read 2583 times)


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Pixel Response Time Speed: Elephant
« on: October 28, 2018, 03:16:12 am »
Samsung Ghosting/Overdrive

DSC_0230 by Deepinthesky Teslastorm, on Flickr

The following are non-pursuit photo compilations of the Test UFO Ghosting test with each monitors back-light or brightness setting set to the maximum.  The AOC and Sony are completely PWM/Flicker Free while the Samsung uses low frequency PWM when the back-light setting is set to 49/50 and lower.  LED PWM Dimming or flicker reduces motion clarity and makes content in smooth camera pans appear to judder and blur significantly more than PWM/Flicker free displays like the AOC and Sony.

Cyan Pixel Response Comparison
Spoiler (hover to show)

In this comparison the Sony is the fastest except in the top UFO which shows a bit more ghosting than the AOC, which along with the Sony has vastly faster pixel response times than the Samsung which along with the others is overshoot ghosting free, but has very slow pixel response times resulting in very obvious color streaking and smearing of black, brown and grey shades, even when watching media.  I witnessed some obvious smearing when watching The Bodygaurd and Frankenstein Chronicles on Netflix, both of which are shows with many black, brown and grey colors and shades since both contain many scenes with people in dark suits, and brown oak furniture.  Even when the back-light is set to maximum to prevent PWM blur, the Samsung offers very poor overdrive performance since it has very slow pixel response times, especially compared to VA panels in 32" 4K VA panels like the BenQ EW3270 (review links) and similarly priced LG 32UD59 (review links), which are both PWM/Flicker Free.  Rtings tested both the LG 32UD59 and the 55" version of the NU7100, here are the pursuit camera photographs of their own custom ghosting test which is based on, and uses the photographic methodology created by Blur Busters.
« Last Edit: January 05, 2019, 04:51:24 am by NCX »