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True 120hz Panel TV - PC won't allow past 60hz

Tags:
  • TV
  • Peripherals
  • Samsung
Last response: in Computer Peripherals
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October 6, 2014 7:06:30 AM

Ok all, I have seen similar questions on this forum. However none that have discussed a 120hz panel tv. I have seen several with 60hz tv's with "fake" 120hz setups. The (fake) 120hz setups that slide frames in to increase from 60 -120 are almost always on 60hz panels. Which means that if you compare a TV that has a 120Hz of real refresh rate (120hz panel) vs a 120Hz (fake), the real 120Hz is most likely better.

My question: why is it that when I connect my true 120hz tv (it has a 120hz panel and NOT a 60hz panel) I only get options to 60p & 60i in my computer's resolution settings?

My TV is a Sharp LC-42LB261U

For some more info regarding how TV mfgs dupe consumers, take what Samsung does for example:
A refresh rate is how many times per second the image can change on the screen. A higher refresh rate basically means that when the scene moves fast, you will see less motion blur.

Samsung advertises (120hzCMR)
The Clear Motion Rate metric was invented by Samsung (seems like a marketing gimmick), to represent better the clarity of movement. The refresh rate alone isn't sufficient to represent the motion blur, so on top of it they added the image processor rate as well as the back-light speed. Samsung is often misleading because it will sometimes only display the CMR instead of the real refresh rate of the panel. This makes it a lot more confusing when comparing TVs across brand, where you better compare the real refresh rate.

More about : true 120hz panel past 60hz

October 6, 2014 7:15:52 AM

What are you using as a cable? HDMI and Display port are limited to 60Hz. Latest versions support higher resolutions.

I believe there are a few hacks out there that solve this, but it is unreliable based on the versions of HDMI and Display Port available.

If the TV has a DVI port, that may offer frequencies above 60Hz.
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October 6, 2014 10:25:28 AM

bignastyid said:
According to Sharps specs the Sharp LC-42LB261U is still only a 60Hz panel.
http://www.sharpusa.com/ForHome/HomeEntertainment/LCDTV...
I have never seen a TV that would actually accept a 120Hz input signal. Here's a lick woth more information on how a Tvs refresh rate works.
http://hometheater.about.com/od/televisionbasics/qt/fra...


This is the information I have from Sharp's manual regarding my TV and the hz http://www.sharpusa.com/~/media/413FC3A08354426294E9B75...

It says on the specs "Panel: 60hz vs 120hz - 120hz Panel"

Also on my box and all of the literature that the TV came with it says "120hz panel". I find it odd that the link from Sharp you posted does in fact state 60hz when everything I have and other links from Sharp state 120hz...

hmmmm

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October 6, 2014 10:30:21 AM

Eximo said:
What are you using as a cable? HDMI and Display port are limited to 60Hz. Latest versions support higher resolutions.

I believe there are a few hacks out there that solve this, but it is unreliable based on the versions of HDMI and Display Port available.

If the TV has a DVI port, that may offer frequencies above 60Hz.


Thanks for your reply... I am using HDMI.

I am also not getting the "sharpest" picture... It seems kind of washed out even though it is a 1080p tv.
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