• frunch@lemmy.world
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    9 months ago

    What was wrong with them? They served their purpose just fine for many years

    • marx2k@lemmy.world
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      9 months ago

      The weighed a ton, they were limited in size, their resolution was terrible, they sucked down electricity…

      • Kecessa@sh.itjust.works
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        9 months ago

        Their screen was curved the wrong way until they released flat screen TVs

        4:3 resolution meant you lost some of the content from movies or you watched them with black bars

      • LillyPip@lemmy.ca
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        9 months ago

        We had four channels and loved it!

        And most people were lucky to have a TV. You were lucky to have a HOUSE! We used to live in one room, all hundred and twenty-six of us, no furniture. Half the floor was missing; we were all huddled together in one corner for fear of FALLING!

      • nottheengineer@feddit.de
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        9 months ago

        Have you compared NES games on a CRT with the same games on a modern screen?

        CRTs just look miles better.

        • amio@kbin.social
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          9 months ago

          EDIT: OK, it’s ackchually not technically “resolution” per se, I get it. :p

          That’s because the graphics were tailored to CRT resolution - which is to say, [things that just so happened to have] low/outright bad resolution.

          CRTs have advantages over more modern stuff but that’s mostly about latency.

          • Sylvartas@lemmy.world
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            9 months ago

            It’s not as much about resolution as it was about exploiting the quirks of CRT. Artists usually “squished” sprites horizontally (because crt screens would stretch them) and used the now famous “half dot” technique to have more subtle shading than what was actually possible at the pixel level. So if you just display the original sprites with no stretch and no “bleed” between pixels, it doesn’t look as good as it should.

          • grue@lemmy.world
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            9 months ago

            That’s because the graphics were tailored to CRT resolution - which is to say, low/outright bad resolution.

            No, it’s because the graphics were tailored to the analog characteristics of CRTs: things like having scanlines instead of pixels and bleed between phosphors. If they were only tailored to low resolution they’d look good on a low resolution LCD, but they don’t.

            I admit I’m quibbling, but the whole thread is that, so…

          • nottheengineer@feddit.de
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            9 months ago

            CRTs don’t have pixels so the resolution of the signal isn’t that important. It’s about the inherent softness you get from the technology. It’s better than any anti-aliasing we have today.

            • frezik@midwest.social
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              9 months ago

              CRTs do have pixels. The exact mechanism varying between manufacturers and types. If they didn’t, you could run an SVGA signal (800x600 at 60 Hz) directly into any CRT. If you tried this, it would likely damage the tube beyond repair.

              http://filthypants.blogspot.com/2020/02/crt-shader-masks.html

              I certainly saw aliasing problems on CRTs, though usually computer monitors that had higher resolution and better connection standards. The image being inherently “soft” is related to limited resolution and shitty connections. SCART with RGB connections will bring out all the jagginess. The exact same display running on composite will soften it and make it go away, but at the cost of a lot of other things looking like shit.

              • grue@lemmy.world
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                9 months ago

                CRTs do have pixels. If they didn’t, you could run an SVGA signal (800x600 at 60 Hz) directly into any CRT. If you tried this, it would likely damage the tube beyond repair.

                Would it, though? I’m skeptical.

                If it did, it wouldn’t be because they have “pixels,” though; it would be because overdriving the deflection yoke with higher-frequency signals would generate too much heat for the TV to handle.

                Otherwise (if it didn’t overheat), it should “work.” The result might look weird if the modulation of the signal didn’t line up with the apertures in the shadow mask right, but I don’t see any reason why sweeping the beam across faster would damage the phosphors. (Also, I’m not convinced a black & white TV would have any problem at all.)

                • frezik@midwest.social
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                  9 months ago

                  It will tend to turn the beam on when it’s off to the side, outside the normal range of the screen. X Windows users in the mid 90s had to put in their exact scanline information or else the screen could blow up. That went away with a combination of multiscan monitors and monitors being able to communicate their preferred settings, but those came pretty late in the CRT era.

                  Edit: in any case, color screens need to have at least bands of red/green/blue phosphor. At a minimum, there will be breaks along either the horizontal or vertical lines, if not both.

                  • grue@lemmy.world
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                    9 months ago

                    When you say “blow up” do you mean the tube would literally explode, it would burn through phosphors, a circuit board would let the magic smoke out, or something else?

                    I remember configuring mode lines in X. Luckily, I never found out the hard way what happened if you got it wrong.

        • echo64@lemmy.world
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          9 months ago

          CRT filters exist now, and with HDR output (or just sending an HDR-enable signal to get tv’s to use the full brightness range) and 4k displays it honestly as good at this point. or better because the only good CRT’s you can get now are pretty small P/BVM and my tv is much bigger than those

        • frezik@midwest.social
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          9 months ago

          There are plenty of upscalers with minimal latency that fix that.

          There also isn’t just “CRT” in this space. Professional video monitors give a very different picture than a consumer TV with only the RF converter input.

          If one more under 25 retro fan tells me that RF tuners are the “true experience”, I’m going to drink myself to death with Malort.

          Edit: please don’t tell me you believe CRTs have zero latency. Because that’s wrong, too.

        • marx2k@lemmy.world
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          9 months ago

          Compare a PS5 on a modern day large screen 4k TV vs a CRT of your favorite brand from any year.

          If your only use case is playing old consoles, there’s filters for current emulators that fill that need adequately.

    • Empricorn@feddit.nl
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      9 months ago

      Are you serious?

      • Curved (the wrong way)
      • Massively heavy
      • Noise (just from the unit itself
      • Very low resolution
      • Noticably hot (might be a benefit in the winter)
      • Small picture, especially relative to weight
      • Depending how far back you go, no/shitty remote, only has 1 port for video
      • grue@lemmy.world
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        9 months ago

        Very low resolution

        For TVs, that’s just because they didn’t need any more resolution because the signal they were displaying was 480i (or even worse, in the case of things like really old computers/video game consoles).

        My circa-2000 19" CRT computer monitor, on the other hand, could do a resolution that’s still higher than what most similarly-sized desktop flat screen monitors can manage (it was either QXGA [2048x1536] or QSXGA [2560x2048], I forget which).

        And then, of course, there were specialized CRT displays like oscilloscopes and vector displays that actually drew with the electron beam and therefore had infinite “resolution.”

        Point is, the low resolution was not an inherent limitation of CRT technology.

      • Skull giver@popplesburger.hilciferous.nl
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        9 months ago

        The resolution problem wasn’t actually so bad, with a near infinite horizontal resolution and more than enough space to evolve (1200p CRTs weren’t that difficult to come by) it really wasn’t a problem.

        The screen size wasn’t that different either. Nobody built wide screen TVs of modern sizes, CRT or plasma or LCD didn’t matter. If you wanted modern TV sizes, you had to get a projector, and those were prohibitively expensive. The bezels were just as big as on CRTs if not bigger.

        The back bulge taking up unnecessary space and the noise was probably what did them in. Looking back at early flat panels, I do wonder who would possibly buy those things for the image quality. The contrast ratio of some modern TVs (especially the sub 600 dollar ones) still doesn’t beat what CRTs could accomplish.

        We could’ve had everything TVs have now, but with a bit of a bulge on the back. We’re getting models that come close in equivalent theoretical image quality now with OLED and QDOLED screens.

        80s CRTs were nothing compared to what the early 2000s produced. CRTs were becoming wider, flatter, and had higher resolutions, but smeary blurry flat screen TVs were all the hype because they were super thin.

        I like my flat panels, but I do wish CRTs would’ve stuck around for longer. Until 4k TVs came along, the visual information density of these screens was higher than that of flat panels. That’s why so many digitised videos look like complete dogshit on modern TVs, the information encoded in them wasn’t meant to be interpreted as discrete pixels.

        • nossaquesapao@lemmy.eco.br
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          9 months ago

          Sometimes I think about how some technologies could have evolved if they didn’t get out of fashion. I always thought it’s a bit unfair to compare products made decades ago with new ones and use it as a comparison for the whole technology.

          In the case of crts, it would be totally possible to make them with modern aspect ratio and resolutions. The greatest challenges would probably be size, weight and power consumption.

    • new_guy@lemmy.world
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      9 months ago

      They were great until you had to move them. They were clunkier than a sofa because they had no place to hold and weighted as much as a refrigerator

    • Maiznieks@lemmy.world
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      9 months ago

      They did break, You know? My father fixed those things, it’s that they were actually fixable back then and it was cool. Or maybe it was just russian tech that broke, we lived in one of those ussr sattellite countries.