TN is annoying because it could perhaps mean it’s a crap shoot as to what panel you get? Maybe.
Interestingly, the European version 20PFL4122/10 has HDMI rather than DVI but has a response time of 25ms. These are old 2008-era items that are no longer produced, according to Philips, but can be picked up second hand quite easily in mainland Europe.
With Philips the number after the slash is called “stroke version” and means a regional variation. Examples (main source):
/00 (All Regions?)
/05 UK & Ireland
/10 Europe (Whole)
/12 Continental Europe (excluding UK & Ireland, including Eastern Europe)
/31 (European country?)
/37 USA & Canada (NAFTA)
/55 Latin America (LATAM)
/58 (European country?)
/79 New Zealand
/93 China (APMEA?)
/96 Taiwan (APMEA?)
/98 Asia-Pacific (APAC)
So service manuals for the old (~2007) 20PFL4122/?? show panel LC201V02-SDB1
And service manuals for newer/current (~2019) 20PFL4122/79 show panel CLAA201VA07C
Which is encouraging to learn that the old models used IPS and the newer/current models use TN.
excessive image processing (“Crystal Clear III”) on any signal input other than pure VGA
does not remember PC input after standby
20PFL4122 no scaling on any inputs, but excessive image processing means VGA is the only option for good image.
20PF4121 scaling and overscan on all inputs except VGA. Amount differs by input source, for example PS2 is less of an issue.
I finally got around to updating JunkerHQ’s wiki with my PSP optimal timings data. I also calculated some alternative settings which leaves a bit more of the letterbox, but produces a perfect 720p picture, which my TV upscales much better than the 607x344 settings that I’d mentioned earlier, and is only a 5 pixel compromise on the aspect ratio. Credit to poptart, of course, for deducing the 607x344 settings and for putting me on this path to PSP+OSSC optimality .
Unfortunately, it looks like the PSP’s video out is just noisy. I hooked it up to an oscilloscope, and noticed quite a bit of clock jitter, which does appear in the picture, as does some ringing. Also, my TV doesn’t do a perfect job upscaling 720p content, so some blurriness still remains. If someone makes an OSSC-like linedoubler with HDMI in and 4k support, it would likely work well in this pipeline. I’ve set “Reverse LPF” to 3, which is essentially just a sharpening filter, which helps with these issues somewhat.
I’m relatively confident that the OSSC is dialed in perfectly at this point, and the remaining imperfections are with my TV and with the PSP itself, but folks do please check my work.
Because I don’t know when to quit, and because I saw another 480p LCD fan over on Reddit, I bought another 20" 640x480 TV.
It’s a Sharp LC-20S5E and it’s lovely TV with excellent sound. I bought a white version.
BUT it has a strange (BGR?) sub-pixel alignment AND I can’t get it to display any video from Dreamcast over VGA, or PS2/Wii using Component over VGA, or Wii using HDMI to VGA. However, it does display my PC over HDMI to VGA.
Will give it some more time but right now it feels like a lemon.
It was a very crisp image even with the Wii U GamePad right in my face (I liked playing it like a slob lying down, resting the GamePad on my chest), only in a couple of locations in the entire game - those heavy on ‘noisy’ colours - could I tell I was streaming a game from the Wii U instead of viewing it via HDMI.
I’ve been playing Xanadu Next recently on PC, one of Falcom’s last PC games. Despite its release in the mid 2000s, it’s interesting how its user interface only appears crisp at 640 x 480, including the art.
Would love to play the game on an old monitor, I bet it looks great.
A Lot of psx games would have benefitted from higher internal res, bilinear filtering, and increased coordinate precision. And thanks to beetle-psx-hw that’s exactly what we can achieve. A sort of psx 1.5 . One of my favourite racing games “ridge racer type 4” lends itself particularly well to this situation. 640x480 internal resolution, tv-out-tweaks shader does some image processing magic. Set the signal and luma res to 320 for a slightly soft image as it would look through 15khz output, or as I like to do turn it to 480 for some increased detail. Scanline overlay set to 30% completes my personal preference. All displayed once again on my 480p Philips edtv. It’s hard to capture how good this actually looks in real life. If anyone has some tips about taking better photos of lcd’s, please let me know.
Some GameCube/Wii shots running at native res. Was digging through my phone for some pics of close-ups of the slotmask effect, figured I might as well post some full shots here. The 2d artwork really shines on these.
Yesterday the N64 paraLLEi render plugin gained support for higher internal resolutions. It’s a software implementation of the entire N64 RDP running on the GPU through a vulkan compute implementation.