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Retro 5″ Black and White TV as a computer monitor – A tale of pointlessness

blog.uchujin.co.uk

31–40 of 89 posts

Re: Retro 5″ Black and White TV as a computer monitor – A tale of pointlessness

#31
post #17
post #12

Earlier quoted context omitted.

He will. Kids try to find loop-holes in every single rule, and they will deliberately misinterpret everything you say in order to use it against you later on. :)

I don't know why you've added a smiley, my 2 year old is already displaying the trait grr :(

Wait till he's 14 and you find his bong.

Re: Retro 5″ Black and White TV as a computer monitor – A tale of pointlessness

#32
post #15

I still use a CRT. Works great, no fuss. Its just heavy to move, which I don't do often. People comment on how rich the colors are. 85hz refresh solves the 'flicker' issue.

I reluctantly discarded my last CRT a few years ago. They're not just heavy to move, they also take a lot of room on my desk and they generate a lot of heat. For a long time LCDs really couldn't compete with CRTs. They had bad resolutions, terrible viewing angles and terrible colors (and especially horrendous blacks). Resolution is (finally) no longer an issue, colors and viewing angles are still meh but steadily imp…

I also stuck with CRTs long after everyone else abandoned them for TFT panels which I mostly hated. The widespread availability of IPS panels with decent viewing angles finally convinced me to switch, though.

Re: Retro 5″ Black and White TV as a computer monitor – A tale of pointlessness

#34
post #17

Earlier quoted context omitted.

I don't know why you've added a smiley, my 2 year old is already displaying the trait grr :(

Wait till he's 14 and you find his bong.

Considering it's not legal up here in Canada, there's a chance kids find their parents' bong when trying to hide theirs.

Re: Retro 5″ Black and White TV as a computer monitor – A tale of pointlessness

#35
post #15

I still use a CRT. Works great, no fuss. Its just heavy to move, which I don't do often. People comment on how rich the colors are. 85hz refresh solves the 'flicker' issue.

I reluctantly discarded my last CRT a few years ago. They're not just heavy to move, they also take a lot of room on my desk and they generate a lot of heat. For a long time LCDs really couldn't compete with CRTs. They had bad resolutions, terrible viewing angles and terrible colors (and especially horrendous blacks). Resolution is (finally) no longer an issue, colors and viewing angles are still meh but steadily imp…

"Resolution is (finally) no longer an issue, colors and viewing angles are still meh but steadily improving."

Are you buying good LCDs? There's a whole range of types: https://pcmonitors.info/articles/lcd-panel-types-explored/ The worst LCDs today are crap, but the best ones are going to be hard to tell apart from a CRT without putting it next to one. Since the only CRTs made today are high quality CRTs because there's zero market for bad CRTs anymore (and only barely a market for CRTs at all), a modern CRT may still outclass the best LCD, but mostly because of the fact that if the CRT couldn't outclass the best LCD it wouldn't exist at all.

Unfortunately, it can be difficult to buy a good LCD screen. Monitors you may have to dig into relatively technical reviews of to find out (generic tech magazine reviewer may not tell you), and finding out what specific kind of screen a laptop has can be very difficult sometimes. Manufacturers don't really want to talk about it as they tend to benefit from being fuzzy about exaggerated specs, and a lot of "reviewers" aren't really aware enough of these issues to make a point of it in their review.

I'm not an expert but I'd swear even in the TN space there's a lot of variation. I once accidentally bought a latop that basically literally didn't have a viewing angle; even at the "optimum" angle only the vertically-middle 50% of the screen was correct and the top and bottom were already showing major brightess drop-off and color inaccuracy. I don't just mean "I don't like to admit it but sometimes I can be a bit of a videophile" sort of complaints, either, I mean more like "literally can't read the word 'Start' on the Start Menu because the text and the background have both color shifted that much". Ironically, sold as a media laptop that only the most casual casual would have wanted to actually watch movies on. Dumped that one right quick. And this particular laptop was priced in the range where it really should have had a decent screen.

By contrast, I'm coding on what is almost certainly a TN monitor, and I really don't care. I wouldn't want it on my personal laptop, the Macbook screen driving it is much, much better by comparison, but I don't do anything color sensitive at work. There's very minimal viewing angle distortion and that's all I really need. (I mean, push comes to shove, I could pretty much do my job on a monochrome monitor and only be somewhat annoyed.)

Re: Retro 5″ Black and White TV as a computer monitor – A tale of pointlessness

#36
post #6
post #5

Earlier quoted context omitted.

I have a bunch of computer CRT monitors and the only way to get bad refresh rate that you actually notice is to set them at 60Hz. At 70Hz or above (most can do 85Hz, any good CRT monitor should be able to go above that) you wont have any issues. Also while this can cause eye fatigue (which depends from person to person), i could never find any proof (and i just did a quick search) that there is any sort of permanent…

PAL Amiga monitors were the worst with their 50Hz refresh. I'm somewhat surprised my eyes didn't suffer more.

No, they were worse when you used an interlaced mode, and had alternating black/white rows. 25Hz headache zone.

Re: Retro 5″ Black and White TV as a computer monitor – A tale of pointlessness

#38
post #24
post #21

Earlier quoted context omitted.

The counter proof is TV viewing skews extremely old, and there's plenty of elderly who've been staring into 60Hz screens for multiple decades with no obvious TV related illnesses.

You are typically not watching them at the same distance either, and the fact that TV screens are interlaced might also affect the flickering effect (I understand 1990s monitors weren't). I remember that my 67Hz macintosh monitor was really stressing my eyes as a teenager, while I never had this problem with a TV.

You're misunderstanding interlacing. Interlacing was a way to still keep 50Hz (or 60Hz in some parts of the world) while having twice as many rows. It didn't give you a higher refresh rate than that.

Re: Retro 5″ Black and White TV as a computer monitor – A tale of pointlessness

#39
Yeah, so mumble years ago my second monitor was a B&W workstation monitor that I picked up for next to nothing. It was actually slightly higher resolution than my other "proper" monitor, and much sharper. I had to make a converter from a VGA output on my video card to a single coaxial signal for the monitor. Luckily the monitor just wanted pull-to-ground for the blanking signals (both of them), so I could make a passive converter with just a few resistors (to mix the three colours) and a couple of transistors (to pull the signal to ground when blanking).

Re: Retro 5″ Black and White TV as a computer monitor – A tale of pointlessness

#40
post #37

"Retro" isn't the right word here. I thought this was going to be about building your own monitor, not simply using an old one...

Okay. For my first-year university physics project, I made a jumble of wires attached to the parallel port of a computer on one end and the X/Y inputs of an oscilloscope on the other end, and could get it to display vector graphics. (Badly. Very badly. There was far too much stray capacitance in the circuit.)
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