evthelegend
I read through your previous posts and your symptoms are actually very similar to mine!
BTW two more ideas. First:
Recently found a super old Sanyo Z2 projector, 720p, it's working awesome for me and it's 3LCD instead of DLP so good chance it's better than yours. Very quiet too
It seems to do no "strain-affecting" kinds of image processing at all with the output appearing VERY clean to me. Sharpening can be disabled by setting the slider to the very left.
I have not experienced any strain while using it for many hours daily. The image appears totally flat (as long as you ensure to connect a PC with known-good output — I'm connecting my Intel HD 4000 desktop with Intel graphics drivers disabled, which outputs a sufficiently "unaltered" image).
This isn't just because it's a projector, because there's actually quite a few projectors (including some 3LCD ones that I've seen at my college) that cause strain for me! This one doesn't though 🙂
The only thing I had to fix was at first, it had some strange purple and green fuzziness on colors, but figured out that this was due to the R/G/B LCDs not properly overlapping each other in the projected image. Eventually discovered that I could go into the factory service menu and adjust the "LCD position" and suddenly it was totally fixed!
Now it is so perfectly crisp and comfortable, very accurate colors too, not washed out at ALL which is rare for a projector!!
IIRC it can be found for $50 used, with similar price for lamp replacements down the line
Second idea:
Look into old Sharp Aquos TVs with "ASV Black TFT" panel type. Made between 2002 and 2009.
They are VA, CCFL backlight, and REALLY comfortable, most comfortable and "consistently good" type of external monitor I've found yet.
Way better than the other types of CCFL monitors I've tried from Dell/Samsung/NEC (which actually still cause me a lot of issues and strain, in comparison to these!)
I now have tested 3 "ASV" TVs (two 1st generation ASV from 2004/2005, one 2nd generation from 2007) and they're consistently nice in general. There are some differences between "generations" — ask me if you want more details.
Unlike most TVs they have barely any image processing. No panel supplier lottery either (unlike most computer monitors), this subtype of VA panel was only made by Sharp.
If looking at a 720p one, make sure it has a DVI port since the "HDMI-only" versions of 720p ones strangely don't let you run them at the native resolution and will always have a blurry/overscanned image no matter what, even if you try to force a custom resolution lol. The DVI ones don't have this issue, the DVI input is perfectly clear.
As they are older LCDs they do have some visible checkerboard pixel inversion and thus are not "totally free" from pixel flicker, but there has been quite a few times now that I find "comfortable screens with obvious inversion", and "really strainy screens without that", so I honestly don't think inversion is the culprit that many think it is. It shouldn't impact your decision on whether to try an ASV Black TFT.
I'm now using Sharp LC-G5C26U (26 inch) as my monitor and loving it. Pretty sure I actually prefer it over my ThinkPad AUO TN panel which is saying a LOT -- as very few screens can even get to the point that AUO panel can!
Plus it actually has really nice colors/contrast/viewing angles. Pretty sure it's 100% sRGB gamut. It doesn't feel like it's from 2004 at all LOL.
(Mine had a red tint at first, but found that at some point it had been intentionally set that way for some reason in the service menu. I reset these hidden RGB "offset" values all to 128 and that fixed it!)
Unfortunately the LC-G5C26U is really hard to find. There are some very similar ones like LC-26GA4U which should have the same panel. Generally, expect to dig for a while to find one (especially one at a good price).
Searching generic terms like "old TV" or "sharp 26 TV" on sites like Craigslist/OfferUp (and then asking them what the model number is) is your friend 🙂
But IMO it's totally worth the effort. I FINALLY have an "actually comfortable" external monitor for essentially the first time in my life
I will make a more detailed post about these ASV TVs soon