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How much is the refresh rate?

Harshith Mohan
By Harshith Mohan
in Displays
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I'm planning to buy a tv instead of monitor for my pc because you know, I wanna watch tv here too. I need a tv with 60Hz refresh rate but they don't mention. In the specs, the power supply is written as AC 100 - 240V 50/60Hz. So I don't know if it runs at 60Hz.. Can you tell me how much is its refresh rate?

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TVs usually run at either 50 or 100Hz.

 

What is the brand and the type of the TV?

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TVs usually run at either 50 or 100Hz.

 

What is the brand and the type of the TV?

where the 100hz is doubled 50hz. they all run at maximum of 60hz.

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That's the Hz of the wall socket not the panel refresh rate. The range it shows means it can be used in places like USA or Australia, new Zealand etc

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The tech specs on the official Samsung site say:

 

Clear Motion Rate

100 Hz

 

http://www.samsung.com/in/consumer/tv-audio-video/television/led-tv/UA22F5100ARLXL

(Tech specs > Show more specs)

 

 

So, motion rate is the refresh rate?

 

Samsung's "Clear Motion" refresh rate is artificial. Other brands (like Sony, Sharp) all have a similar technology.

The panel's LED lighting simply updates / flashes at 100Hz, giving it the impression it is 100Hz...in other words, feels like 100Hz. In reality, the actual refresh rate is still just 60Hz.

It some-what helps reduce motion blur.

 

Other brand's equivalent to Samsung's "Clear Motion"

  • LG -- TruMotion
  • Panasonic -- Backlight Scanning Technology (they are actually nice enough to tell you up-front)
  • Sharp -- AquoMotion
  • Sony -- MotionFlow
  • Toshiba -- ClearScan / ClearFrame
  • Vizio -- SPS

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Refresh rate varies based on the signal difference between countries.

Like PAL and NTSC.

North America uses NTSC, so it is like computer displays: 60Hz, 120Hz, etc. However, North America is not alone, other countries have adapted it.

Other countries uses PAL, which is 50Hz, 100Hz, etc.

Back in the old days of cartridge based consoles, (eg: NES/SNES days), the game speed was affected. Making games on NTSC run a hint faster (and smoother) than PAL.

Fun fact: Nintendo virtual console games emulate your region Hz to provide you with the same feeling as you played the game when you were younger.

So, if you are in Europe, the Wii/WiiU/3DS will play a NES/SNES game at 50Hz. In North America it will be 60Hz.

"Motion" Refresh rate does 2 things:

-> Plays with the back light flicker to make it look like you see more frames.

-> Generate fake frame. It takes 2 frames and generate an in-between frame, or uses algorithm to guess the next frame, or a combination.

If you play the WiiU, you can really see this in action, as the TV will have over 100ms input lag, and the game pad screen won't.

Here is a cool video showing the speed difference.

Notice how the gamepad screen, despite on wireless, draws before the TV by considerable margin. This is because, the the WIiU sends the signal to both screens, but the TV needs time to process the image, let alone the next frame.

If you have a CRT TV, or a TV where you can actually fully turn it off, they are both in sync.

These motion feature is why TV shows and movies look strange, and you can't put your finger on it. If the movie or show was sending more frames genuinely, then it won't look strange, beside smoother. But here it looks strange. Most people disable it. Or get used to it, Or have their TV disable/turn on based on the HDMI port or connection used on the TV.

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