60Hz vs 120Hz LED TV in Slow Motion

As you can see, there is not really a difference in term of motion blur between a 60 Hz and a 120Hz LED TV.

Models in this video: LG 47LA6200 and LG 42LN5300

[markgibbs]

These are both 60 Hz TVs, the one on the right just implements TruMotion technology.

[RTINGSdotcom]

Motion flow is useless for gaming because it adds too much input lag that it needs to be disabled. We did review this TV in person (check out our website for the review, or check our other videos of the R450). Overall, it is a great TV even for a 60Hz. The only downside of it is the narrow viewing angle, but if you game alone/directly in front of the TV, it doesn't matter. Go for it.

[RTINGSdotcom]

In term of motion blur, yes. The 120Hz has a motion interpolation feature that is not shown in this video (check out our other videos), but most people do not like that effect and it cannot work with video games due to input lag.

[RTINGSdotcom]

No, eye strain is independent of the panel refresh rate. Eye strain is caused mainly by 2 things: too bright display or flickering. A LCD panel actually never flickers, it is the LEDs behind it that does. The LEDs will flicker either intentionally (look for a "LED Motion" settings or something similar), or to reduce the brightness. In our video, you can see that the TVs flickers because we didn't set the backlight intensity to the max.

[RTINGSdotcom]

The main advantage a 120Hz TV has is the dejudder/motion interpolation. When turned on, it is smoother, but you can't use this on video games or computer monitor because of the added input lag. (Check out our video called "Soap Opera Effect in Slow Motion" to see that feature in slow motion)

[RTINGSdotcom]

If a 100Hz CRT doesn't burn your eye but a 60Hz does, your problem is most likely due to the flickering. Did you try a LCD monitor? Their CCFL backlight cannot be dimmed by flickering the same way as a LED backlight. You could also find a monitor that dim its LED backlight by reducing the voltage instead of flickering, but it isn't advertised in the spec.

[RTINGSdotcom]

In this video, the LA6200 has the TruMotion setting turned off. Check out our video of only the LA6200 to see what happens when you turned it on. That mode doesn't reduce the actual blur, it just adds fake frames in between the real frames. It doesn't work for gaming and there are artifacts for fast movies and sports. So overall, I personally prefer leaving that option off.

[Jammeraz]

Thanks for the info. Under a warranty replacement, they gave me a 60hz unit instead of my 120 hz and I was worried about the blurriness.

[ajac]

calling bullshit. I've put my 42 inch LCD 60hz side by side with my new 55 inch 120hz and motions are noticeably different. On the 120hz especially during fast motion it looks ALOT better not sudden jerks but nice and smooth motion. Now between 120hz and 240hz isnt as noticeable but between 60 and 120 it is. 

[taylorday]

Higher refresh rate looks better on fast paced shows. If you watch the king of queens, for example, it's gonna look a little odd. But yea the higher the refresh rate the better, typically.

[ravaelkhan]

To me, if you look closely, the 60Hz TV produces a new image for each frame whilst the 120Hz TV sort of retains the image from the first frame while jumping on to the next one. The question is whether this is true 120Hz or just a way of making it feel like one.

[RTINGSdotcom]

Contrary to 120Hz monitors, there are no 120Hz TV that supports a real 120Hz input, the extra frames needs to be generated by the TV.
Yes, its the PWM of the backlight that creates the flickering. I am not aware of the models that do not use this technique to dim the backlight, but there is a way around it. Put the backlight setting to the max (thus removing the PWM), and bring down the contrast/brightness setting. This won't give you the best picture, but should stop the flickering.

[mleczko]

i am looking for 42 inch 3d tv (because there's no such size monitors) for gaming in 3d and 120hz 2d. so much choice... what would you recommend?

[RTINGSdotcom]

120Hz 2D is not officially supported by any TV. It works in some cases though. Check out the FH6030. It is very good for the price and doesn't have any extra features like Smart TV except 3D. You will have to google a bit though to check if you can get 120Hz 2D working on it.

[greendg]

alriight, seems you are on top of this. I agree the 120HZ just has too many artifacts and even makes the motion looks worse in most cases. Interpreted frames and backlight strobing add up to a mess. Your Rtings sign should be a simple test for 120 motion estimation and compensation programs and it struggles. I really don't see the plasma screens being much better in motion than the LG or Sony with backlight scanning -

[purrbox]

Unless you're a twitch gamer then 60hz and 60fps is more than fine. The strange thing is a lot of modern games actually come with a motion blur effect as standard, further negating the need for 120hz. I know in 2017 this is obviously an old argument but there are plenty of us wanting to sell on our old 2013 TV's and the first question I seem to get asked is "is it 120hz". You're watching Southpark, it doesn't matter!!

[sanketgupta]

I don't watch sports or play games so will a 60Hz TV would be good for me as I will watch only movies with 29FPS?

[RTINGSdotcom]

That model is a year old and was replaced by the UN32F5500 this year. Besides the older version of the smart TV interface and bezel change, there is not much difference.You do not need to upgrade to a 120Hz one unless you want the soap opera effect when watching movies.

[donbigileone]

Hi!

I have a Sony X94J 65" 4K 120 hz TV and a Panasonic JX810 58" 4K 60 hz TV.

When I watch sports on cable channels or movies on streaming services, I cannot see a noticeable difference between my TV's when it comes to motion clarity or the picture quality.

Is 4K 120 hz meant only for serious video gaming like for Xbox Series and PS5?

Greetings from 🇫🇮😊

[edpritchard]

200 hz looks insane, totally natural movement on screen