Refresh Rate 3,072 Hz?

Discussion about 120fps HFR as well as future Ultra HFR (240fps, 480fps and 1000fps) playing back in real time on high refresh rate displays. See Ultra HFR HOWTO for bleeding edge experimentation.
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s34mh1
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Joined: 29 Mar 2020, 05:36

Refresh Rate 3,072 Hz?

Post by s34mh1 » 03 Nov 2020, 12:10

Samsung Onyx
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Chief Blur Buster
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Re: Refresh Rate 3,072 Hz?

Post by Chief Blur Buster » 03 Nov 2020, 15:49

Good catch!

Jumbotrons and Video walls are already refreshing internally from 600Hz - 3000Hz+ for PWM dimming purposes; unfortunately this does not (yet) mean frame rate. However, this is direct LED driven PWM which can easily be separate refresh cycles instead. it's only a minor engineering change to make a Jumbotron do 1000fps 1000Hz -- faster SPI buses (or Ethernet), and unique-frame-per-refresh controllers.

I already discuss the theoretical retina-refresh-rate Jumbotron concept here: Custom OLED Rolling Scans -- Custom Built OLED Monitor -- But applied to a Jumbotron / Video Wall instead
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thatoneguy
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Joined: 06 Aug 2015, 17:16

Re: Refresh Rate 3,072 Hz?

Post by thatoneguy » 10 Nov 2020, 04:53

3072hz is 128 times the refresh rate of 24hz.
What is the benefit of running 24fps material(such as Films which is what Samsung Onyx are used for in Cinema Screens) at such a high refresh rate?
Does running internally at that refresh via PWM improve motion? Do they still use some sort of BFI in Cinemas to simulate the double/triple shutter effects?

Additionally, I thought PWM flicker was understood to be hurtful to the eyes so why would Cinemas use a display with PWM?

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