can't get 120mhz on my monitor

duffman1169

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Jun 6, 2014
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I'm using a Panasonic Viera 50" LED for my monitor, the display has a refresh rate of 120mhz, but the highest it will let me set it to from my computer is 60mhz. is it possible to get 120?
 
Solution
Your TV does interpolation on a 60Hz panel to achieve interpolated 120Hz refresh rate.

Interpolated 120Hz+ (Your Panasonic TV)- These technologies are the ones commonly used in LCD TV's where TV signal input is limited to 60 Hz anyway. To help overcome the issues relating to motion blur on such sets, manufacturers began to introduce a technology to artificially boost the frame rate of the screen. This is done by an internal processing within the
hardware which adds an intermediate and interpolated (guessed / calculated) frame between each real frame, boosting from 60Hz to 120Hz. This technology can offer a noticeable improvement in practice when it is controlled very well. Some sets even have 240 and 480Hz technologies which operate in...
Your TV does interpolation on a 60Hz panel to achieve interpolated 120Hz refresh rate.

Interpolated 120Hz+ (Your Panasonic TV)- These technologies are the ones commonly used in LCD TV's where TV signal input is limited to 60 Hz anyway. To help overcome the issues relating to motion blur on such sets, manufacturers began to introduce a technology to artificially boost the frame rate of the screen. This is done by an internal processing within the
hardware which adds an intermediate and interpolated (guessed / calculated) frame between each real frame, boosting from 60Hz to 120Hz. This technology can offer a noticeable improvement in practice when it is controlled very well. Some sets even have 240 and 480Hz technologies which operate in the same way, but with further interpolation and inserted frames.

True 120HZ technology(which a 120Hz monitor has) - to have a true 120Hz screen, it must be capable of accepting a full 120Hz signal output from a device (e.g. a graphics card). Because TV's are limited at the moment by their input sources they tend to use the above interpolation technology, but with the advent of 3D TV and higher frequency input sources, this will change. Desktop monitors are a different matter though as graphics cards can obviously output a true 120Hz if you have a
decent enough card. Some models can accept a 120Hz signal but need different interfaces to cope (e.g. dual-link DVI or DisplayPort). These monitors are also introduced with the development of 3D gaming so will no doubt become more and more mainstream. Again these offer obvious advantages in terms of gaming where a frame rate of >60fps can be properly
displayed. It also helps improve any motion blur and produce smoother movement in practice, even helping to remove some overdrive artifacts in some cases.

In short your TV will not be able to display above 60fps
 
Solution