Originally Posted by bryantc
What does that mean exactly? What will happen if you feed it a 120hz signal at 4K or 1080p?
I suspect that if the 88Z8 is fed a 1080p or 2160p stream at 120fps, it will be upscaled to 8K and every other frame will be lost to result in 4320p60.
A Native refresh rate is the rate a panel can refresh all of the ouxel date to a new frame.
An Effective Refresh Rate is the rate at which a panel can 'take action' to change the image displayed to your eyeballs, including blanking. An LED/LCD with a scanning backlight that refreshes frames ar 120Hz and strobes segments of the backlight at 120Hz has an Effective Refresh Rate of 240Hz (eyeballs see 4.2ms of luminance followed by 4.2ms of black from every pixel).
And for comparison what are the "Native" and "Effective" refresh rates of the current 4K models?
2016s and 2017s 4Ks were 60Hz Native and Effective.
2018s 4Ks were 120Hz Native ad Effective
2019 4Ks are 120Hz Native and 240Hz Effective (because the columns have been split so that they can be driven from above and below in parallel).
Does that mean the panel is only physically capable of refreshing its screen 30 times a second?? I have never seen that before. That cannot even properly be called a "television" since all forms of US broadcast use a 60hz refresh rate.
I believe this question was related to Samsung's 2018 8K QLED, and yes, it is limited to refreshing an 8K image every 1/30th of a second. To be fair, this limitation may merely be due to HDMI 2.0 rather than panel speed - if Samsung delivers an updated 'One Connect Box' supporting HDMI2.1 and an 8K refresh rate of 60Hz, then the panel itself already supports that refresh speed and is merely starved by HDMI2.1 feeding it an 8K video stream...