this post was submitted on 23 Sep 2025
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The Impending CRT Display Revival Will Be Televised (hackaday.com)
submitted 1 day ago by mesamunefire@piefed.social to c/technology@lemmy.world
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[–] hamsterkill@lemmy.sdf.org 3 points 1 day ago* (last edited 23 hours ago) (1 children)

it would be cool to have some sort of optical displays based on interference (suppose, two lasers at the sides of the screen) or whatever, allowing similarly agile resolution change, and also more energy-efficient than LCDs, and also better for one's eyes. I think there even are some, just very expensive

I think you're just describing laser projection TVs ( though the projection is from the front or back, generally). They're not that expensive — just huge. For their size, they're much cheaper than LCDs and OLEDs, but they only come in about 100+".

https://www.walmart.com/ip/Hisense-L5H-4K-UHD-Ultra-Short-Throw-Laser-TV-Projector-with-100-Light-Rejecting-Screen-Dolby-Vision-Dolby-Atmos-Google-TV/5003861077?classType=REGULAR

Scanning laser projection is also used in virtual retinal displays, but that's for stuff like HUDs or a head-mounted display since it projects on (or rather - into) a person's eye instead of a screen.

Any kind of scanning display will probably have poor latency compared to LCD/OLED flat panels, I think, though.

[–] vacuumflower@lemmy.sdf.org 1 points 9 hours ago

Yes, except with part of the screen itself being the optical medium, bent light and all that. So that it wouldn't have to be huge. I'm thinking about portable, foldable, rollable things ... Not sure.