Mini-Review: Samsung 40KU6400 as a monitor

Captain Chaos said:
I'm still tweaking mine. Definitely getting better and causing me less issues with regards to headaches.

It seems I am sensitive to PWM so have had to increase the back light which has helped it seems.

They are definitely a nice TV and if you don't suffer the PWM sensitivity well worth it.

Settings at the moment

Back light 20
Brightness 0
Contrast 89
Sharpness 50
Colour Tone Warm 1
Gamma BT.1886 -1
HDMI black level Normal
HDMI UHD Color selected

Firmware 1201
Click to expand...

How is the flicker Captain, is it something you can physically see or just something that you sense giving you headache/eye strain?
 
Since I am far from an expert on TV's, what can you tell me about the difference between the Samsung UE40MU6120 and the Philips 43PUS6162?
They both cost the same.
I don't know if 43 is too large for desk usage, but still, if the image and features are better, it might be worth it...
The Samsung:
https://www.displayspecifications.com/en/model/1d25fa6

Philips:
https://www.displayspecifications.com/en/model/c1f1abd

Comparison:
https://www.displayspecifications.com/en/comparison/e08f39bf3

Thank you.
Cheers!
 
A setting of 12 out of 20 or more on the backlight of this TV removes PWM. It seems most people here are running flicker free with the backlight turned up high.


PWM sensitivity does not start at zero. Everyones nervous system is affected to some degree. Headaches and eyestrain are simply the most obvious sign of damage being done.
 
Grandmaster Fap! said:
How is the flicker Captain, is it something you can physically see or just something that you sense giving you headache/eye strain?
Click to expand...

No I cant see any flicker and the screen looks fantastic. Just after short usage found myself getting headaches. Running my above settings I have not gotten a headache so either I have gotten used to the screen or the settings work well with me?
 
Hi all!

Interesting post we got here. Been reading this and thought I'd share some feedback for the gamers out there regarding the SAMSUNG MU6400 (40") model I purchased.

First a little brief background; I play competitive games online and always been gaming on a monitor. Had numerous monitors throughout the years. My latest monitor was ASUS VX239H-W. I been gaming on consoles (Xbox One S) so no PC. I play games like Destiny, HALO etc. Here are the specs of the monitor for those whom are interested; https://www.asus.com/uk/Monitors/VX239HW/specifications/

I been hearing good stuff about 4K and HDR (well at least it's better than the dead feature 3D lol).
4K+HDR has got attention of many people out there. Anyways...

So I made the change and purchased the 40" model. The design of the tv is superb. You get two remotes; standard with all them buttons and a smart one remote that controls everything more or less and has a few buttons. Honestly SAMSUNG should just ditch the standard remote. The entire TV is silver well the frame and stand and the back is black. Power cable is white well sort of light grey.

The model I got has a VA panel and the quality is superb. Sharp, vibrant and punchy. This TV is perfect for gaming. I have been playing HALO online and let me tell you. You won't notice any sort of input lag compared to a monitor. Remember with monitor they will say 5ms GTG or 1ms GTG but that technically doesn't mean input lag. You could get a monitor maybe with 5ms GTG but input lag might 15ms - 20ms etc. This is what monitor manufactures don't tell you. This TV has an input lag of 19ms in GAME mode.

Here are two videos that I uploaded of me gaming online on HALO 5 Ranked Slayer. One on a monitor and the other on the SAMSUNG TV;

Monitor;
https://youtu.be/pnJfqZbksz0

SAMSUNG TV;
https://youtu.be/ijBVbIMJMkI

I'd definitely recommend picking this TV up for gaming or movies. When 4K HDR monitor come out they will be near or over £1,000.

Here are my calibration that I use with Xbox One S;

General > External Device Manager
GAME MODE ON
HDMI UHD COLOR ON (HDMI 1)

Picture > Expert Settings
Backlight 16
Brightness 0
Contrast 87
Sharpness 20
Color 65
Tint G50/R50
Contrast Enhancer Off
Colour Tone Warm 2
White Balance > 2 Point > R-Gain 3
Gamma BT.1886
BT.1886 -1
Colour Space Settings Native


Xbox One S Settings;
TV Resolution 4K UHD
Colour Depth 10-Bit
Colour Space PC RGB

Hope this helps!
 
I’ve had one of these TV’s for about a week, and while I am happy with the static picture quality, the response time on the blacks seems really slow. I am aware that this is a drawback of the VA panel type, but it does seem excessive. It is most noticeable when scrolling with the mouse wheel while web browsing or editting a word document, where there is a short but noticable after image (ghosting?). Is this normal for the screen, or do I have a faulty one?

I have had a play with the settings, and am using PC mode with all adaptive contrast stuff turned off.
 
PapaBlingo said:
I’ve had one of these TV’s for about a week, and while I am happy with the static picture quality, the response time on the blacks seems really slow. I am aware that this is a drawback of the VA panel type, but it does seem excessive. It is most noticeable when scrolling with the mouse wheel while web browsing or editting a word document, where there is a short but noticable after image (ghosting?). Is this normal for the screen, or do I have a faulty one?

I have had a play with the settings, and am using PC mode with all adaptive contrast stuff turned off.
Click to expand...

Yep there is some sort of ghosting. Just use the remote and scroll fast on the menu of the tv you will see ghosting.

Other way to see ghosting on that black level is if you set Xbox dashboard to white theme and scroll fast on menu or achievements list you will notice.

Perfectly normal due to the va panel. For gamers don’t panic this has nothing to do with input lag.
 
Lol, thanks. I don't actually remember creating the account, but when I went to sign up to write this post, it turned out I already had one.

But thanks for answering my question. I am fairly picky with my tech, but if the choice is between IPS glow or VA ghosting, I think I will take the ghosting, at least until OLED monitors become practical / available.
 
Love this TV as a monitor, but just wondering if anyone else gets signal cutting in/out to it, I have this and another real monitor. The original monitor is working fine over DVI. This cuts out randomly when using either display port or HDMI. It could be an issue with the GPU but weird it's not effecting the other screen, and no errors in the system drivers. Wondering if there is a setting that could be causing it, or just a fault. Sometimes disconnecting the display from either monitor or gpu end and re-attaching sorts if for a while.
 
anyone using this on an xbox? I was playing FH4 last night and noticed terrible blur/smearing when turning the car at low speeds. So much so, that I had to stop playing.
Driving around the barns looking for things was not an enjoyable experience. I'm using HDMI1, game mode on, 4K HDR.

any tips?

Thanks!
 
TheOracle said:
anyone using this on an xbox? I was playing FH4 last night and noticed terrible blur/smearing when turning the car at low speeds. So much so, that I had to stop playing.
Driving around the barns looking for things was not an enjoyable experience. I'm using HDMI1, game mode on, 4K HDR.

any tips?

Thanks!
Click to expand...

Mine seems fine on PC once I turned off "Motion Blur" in the video settings. Struggled to read the road signs with it on.

Do get some blur on my screen but only really notice it with fast moving high contrast stuff like the Elite Dangerous orange on black hud.
 
n30_mkii said:
Love this TV as a monitor, but just wondering if anyone else gets signal cutting in/out to it, I have this and another real monitor. The original monitor is working fine over DVI. This cuts out randomly when using either display port or HDMI. It could be an issue with the GPU but weird it's not effecting the other screen, and no errors in the system drivers. Wondering if there is a setting that could be causing it, or just a fault. Sometimes disconnecting the display from either monitor or gpu end and re-attaching sorts if for a while.
Click to expand...

I have had this, and have found that setting the colour depth to 4:2:2 seems to mostly sort it.
 
I have used MU6400 as a PC monitor since March 2017 and since wife wanted a telly in bedroom I gave her mine Samsung "monitor" and started to search for something with lower input lag. I game in 4k on PC (3840x2160) and the input lag was noticable, not huge but noticable. I believe it is less so in 1080p aka FullHD. I went for LG 43 inch UK6950PLB for £379 at Currys. It is IPS with infamous RGBW pixel structure. My biggest worry was that text won't look smooth because of the pixel structure but it actually looked smoother than on MU6400. Input lag in 4k was very low and no different to my second screen 27" Iiyama 1080p VA panel - measured using this dual timer youtube vid. https://youtu.be/e8ZtPSIfWPc . The viewing angles were quite poor for IPS so was the contrast, and image retention was very obvious on solid backround after displaying desktop for a moment, not pernament and not obvious under normal usage unless grayish solid color displayed. The biggest drawback of this LG was that it has what looks like a slightly more recessed display surface behind the front glass - it looks like a cheap tablet without laminated touchscreen where there is obvious gap between the display and front glass cover. On the top of that the front layer seems to be curved at edges resulting in distortion in very edges where the first letter of the icons on left side of the screen would disappear and the vertical scrollbars in web browser on right side were distorted and similarly. Pixel response, judder free motion and especially the low input lag were great for gaming but the lower resolution as result RGBW structure was slightly obvious and the low contrast was very obvious - thus I returned it and went for tried and trusted Samsung again. This time newer, but lower model, 40 inch NU7120 with nice VA panel. Compared to MU6400 it is a downgrade in some respects - no bluetooth, no 5GHz wifi, no wide color gamut wich when used in SDR on PC is not obvious at all - and upgrade in input lag - not by much in 4k I guess as the dual timer shows it is lagging by 1.5 - 2 FPS behind my iiyama which would be around 30ms higher input lag - so not sure if that is real upgrade compared to MU6400 but subjectively NU7120 feels bit more responsive. Then there is 240Hz PWM compared to 120Hz on MU6400 so it could be better for those sensitive to it. NU7120 might have slightly higher contrast too. The desing is great, it actually looks like PC monitor with elegant and relatively thin black frame. Subjectively the picture and overall image quality looks great on NU7120 and price is great in UK too - £319 in Argos. So I am happy with it for now and I think it is vital alternative to MU6400 for PC monitor and SDR (standard dynamic range) gaming.
 
You must log in or register to reply here.
Back
Top Bottom