Considering producing SED/FED monitors... Critique needed

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aeliusg
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Re: Considering producing SED/FED monitors... Critique neede

Post by aeliusg » 07 Mar 2015, 23:12

Yeah, any news? LMAO :lol:

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rabidz7
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Re: Considering producing SED/FED monitors... Critique neede

Post by rabidz7 » 21 Apr 2015, 06:56

aeliusg wrote:Yeah, any news? LMAO :lol:
SEDs are most likely not going to happen. However, if I could find someone willing to assemble them, I would consider distributing 2048x1536 170Hz LCDs, which is nowhere near as far-fetched as starting SED or CRT production. 21.5" 2048x1536 LCDs and DVI transmitters capable of [email protected] already exist.
Rabidz7 is a: PowerPC Fan, LCD and x86 Hater, and a Plasma/OLED/CRT/SED/FED Lover

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rabidz7
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Re: Considering producing SED/FED monitors... Critique neede

Post by rabidz7 » 21 Apr 2015, 07:00

flood wrote:
rabidz7 wrote:I also want to state that I am in the very, very early planning stages
we shouldn't even get our hopes up until he actually shows us something beyond a post of what he's thinking of
Very true. As of now, this is still just an idea.
Rabidz7 is a: PowerPC Fan, LCD and x86 Hater, and a Plasma/OLED/CRT/SED/FED Lover

Kreon
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Re: Considering producing SED/FED monitors... Critique neede

Post by Kreon » 22 Apr 2015, 02:52

rabidz7 wrote:
aeliusg wrote:Yeah, any news? LMAO :lol:
SEDs are most likely not going to happen.
I'd say there is 102% probability that it is not going to happen.

gl_picmip 3
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Re: Considering producing SED/FED monitors... Critique needed

Post by gl_picmip 3 » 06 May 2022, 07:30

Still waiting for one to be released... ;)

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Chief Blur Buster
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Re: Considering producing SED/FED monitors... Critique needed

Post by Chief Blur Buster » 06 May 2022, 12:10

gl_picmip 3 wrote:
06 May 2022, 07:30
Still waiting for one to be released... ;)
High-Hz Micro LED, combined with a rolling-scan CRT emulator mode, would now probably produce vastly superior CRT look than any SED/FED ever could.

The problem with SED/FED is they had to be refreshed differently from a CRT, behaving kinda like plasmas (the prototype SED/FED has worse artifacts than a Pioneer Kuro plasma). Instead, I'd rather shift the CRT refresh-pattern control over to software (ASIC, FPGA, GPU shader, or other software-reprogrammable algorithm) to get exactly the same perfect CRT look-and-feel.

The only thing is we need brute overkill Hz, to allow CRT refresh cycle emulation over several digital refresh cycles.

Think of this as a temporal version of the spatial CRT filters. We already know how great spatial CRT filters look on a 4K OLED display, looks uncannily accurate for low-rez CRT, you can even see individual simulated phosphor dots! But this isn't blurfree. But it's possible to do it temporally too, not just spatially -- it just requires many refresh cycles per CRT refresh cycles.

Direct-view discrete micro LED displays (and possibly future OLED), can do all the following:
- Color gamut of CRT
- Perfect blacks
- Bright whites
- High resolutions enough for spatial CRT filter texture emulation (see realistic individual phosphor dots!)
- Can do high refresh rates enough for temporal CRT scanning emulation (see realistic zero-blur motion and realistic phosphor decay!)
- HDR capability can also give the brightness-surge headroom to prevent things from being too dark

So you just need an ultra-high-rez ultra-high-refreshrate HDR display (such as a 1000Hz OLED or MicroLED), then the rest of the CRT behaviors can be successfully emulated spatially AND temporally in software.

You can use a 960Hz display at 16 refresh cycles per CRT Hz to emulate 60 electron-scanned refresh cycles per second at 16 frames per simulated CRT refresh cycle (each frame would be like a frame of a high speed video of a CRT, but in realtime instead). This is to simulate an electron beam / phosphor / zero motion blur as long as there was enough brute Hz to allow multiple refresh cycles per simulated CRT Hz to emulate the electron beam.

Incidentally, a 1000fps high speed video of a CRT, played back in real time to a 1000Hz display, accurately preserves a lot of the CRT temporals (zero blur, phosphor decay, same flicker, etc).

Instead, you’d use a software algorithm in the firmware or the GPU, to artificially emulate a CRT tube via piggybacking on the ultra high refresh rate capability of future displays.

Direct view micro LED panels (without LCD) can exceed the contrast range, color gamut, and resolution of a CRT tube, and so it’s a great supersetted venn diagram that is a perfect candidate for this type of logic to emulate a CRT tube, with a CRT emulator mode.

That’s the better engineering path to go down, in my opinion.

Although full-fabbed 1000Hz+ panels don't yet exist, DIY 1000Hz+ is possible: If you begin with modified jumbotron LED modules from Alibaba (they already refresh at 1920Hz, they're just repeating 60Hz frames -- need to commander with some modifications 1920 unique images per second) -- then a prototype can probably be built in less than 1/100th the cost of a SED/FED prototype. There'd be a bit more software development needed, but it could be done in plain shadier programming instead of complex FPGA/assembly. It would be low resolution (large DPI) and maybe need to be wall sized.

Alternatively, an early version of the temporal CRT algorithm can be programmed on a 360Hz display (6 refresh cycles of rolling-scan BFI emulation for one 60Hz CRT refresh cycle). It would be something like the algorithm in proposed RetroArch BFIv3 suggestion. It could either be implemented in the display firmware, or as a GPU shader (using a Windows Indirect Display Driver), or programmed into a specific app (like an emulator such as RetroArch).
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thatoneguy
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Re: Considering producing SED/FED monitors... Critique needed

Post by thatoneguy » 08 May 2022, 00:58

This guy(the thread creator aka rabidz7) is still talking up big promises.
He was talking about [email protected] CRT on Hardforums recently before downgrading to [email protected] to later saying that it wasn't feasible and talking about how how he might be able to produce [email protected] OLED panels.
https://hardforum.com/threads/interest- ... 1045336630

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