https://www.explainxkcd.com/wiki/index.php/Category:Extrapolation

This is very basic extrapolation of 22.4% yearly exponential growth. It’s a joke, at the end of 2039 we’d have an impossible market share of 107 percent(…age points to distinguish from the 22.4% figure’s unit).

>>> eval(ln(30/6.3)/ln(1.224))
7.721232148888825
>>>

Less than 8 years at this pace to reach 30 %, and 6 more to take over all of desktop and then some. No more Windows in 2040!

Thx, I didn’t notice the difference and assumed you just rehosted it because slrpnk.net was slow or something

What’s the problem with slrpnk.net?

Oh, my misunderstanding was because didn’t know active-matrix (TFT) OLED displays existed, where thin-film transistors (TFTs) keep the pixels on between updates. I know those little 128x64 SPI OLEDs that are passive and driven line-by-line, I don’t have a big OLED screen.

I edited it, I thought all OLEDs worked like this little one where the pixels turn off between refreshes (in fact, in this passive matrix, only 1 line is on at a time, even the high-speed camera has an overly long shutter). Turns out there are TFTs that keep them on. Thanks for teaching me this.

Well, on some they aren’t.

But yes, TIL that some OLEDs do in fact work continuously thanks to TFTs

hz of a monitor is not like a car blinker or CRT televisions where it’s off in between the updates. It is on in between the updates

Yes, it is on OLED, unless they’ve added active storage like TFT LCDs. In which case, that’s cool technology they’ve invented.

I know what hertz is, I’m en electrotechnician. The display’s refresh rate is measured in hertz, and has to be at least 40 Hz or you suffer from headaches and some from photosensitive epilepsy. (edit: only applies if the screen goes black between refreshes, which I just learned OLED, unlike CRTs, doesn’t.) Ideally 100 Hz or more. But the image (frames per second) does not have to change that often. For example, movies are 24 fps but 35mm film projectors are 72 Hz: they flash each frame 3x before advancing (using a three-blade shutter) because 24 Hz is seizure-inducing but using a unique picture for each refresh (72 fps) is expensive. Similarly, your OLED TV is 144 Hz when gaming at 144 fps (if you can afford that), when watching a 60fps gaming video or 24fps movie: the screen controller works the same all the time but the picture it’s fed changes more or less frequently.

If an OLED screen refreshed at 1 Hz, you’d see a line going down the display edit: I learned about TFT OLEDs which don’t do that. So it never goes below 60 Hz. However, the phone can reduce animation fps when the CPU can’t keep up or to save battery. 1 fps is extremely choppy though, I don’t know where OP got that. I did once use a phone capped to that framerate (via adbcontrol pre-Lollipop where the screenshot is transmitted over USB) and it was awfully non-responsive.

That’s slower than a car blinker. An impractical refresh rate for OLED; did you mean 1 fps?

Edit: turns out OLEDs, like LCDs, use TFT technology to stay on between refreshes so it’s fine.

And yes, smartphones have refrained from redrawing unchanged display areas for years. You can enable “Show surface updates” in Android developer settings (flashing lights warning) to get an idea. Usually, the display gets divided into vertical areas: status bar, main app, keyboard, navbar, and each only updates if there is a change.

This photo was taken after Line 21 subtitles were available (1990s or later). And the TV needs more service than that: vertical linearity and convergence, at least. I can’t judge color decoding in this scene, maybe the tint is just wrong or the red cathode is weak.

Look up how a CRT works. As the beam draws picture fields, it moves downwards across the screen driven by a 59.94Hz sawtooth wave. The generator of this sawtooth wave needs to be synced to the vertical blanking interval between fields. “Vertical hold” refers to how long the oscillator waits before the window in which it can accept the sync pulse. Too soon and the picture scrolls down, too late and the picture scrolls up (however, slightly too late, as long as 1/59.94 seconds is still within the window, is fine and the picture can stabilize after one slow scroll up).

Seeing almost two copies of the picture means V-Hold is very late and the vertical oscillator is running way too slow. About 30-40 Hz, very flickery to the person taking the picture!

Most do but as a higher-frequency (15kHz) oscillator, it has smaller components that don’t drift as much and so the control is a trimmer inside only calibrated as often as a tube needs swapping. On transistor sets, that’s like, never, so they glue the trimmer to avoid misadjustment during transport.

A similar one appeared in the first book.

Not the devs, right?! Unless they’ve added a backdoor.

At least my subscriptions are semi-private, right?

Maybe OP bought this together with the phone
https://www.ulefone.com/products/usmart-e03

Cop RP counts in a pinch

Yup, real, except Kiribati is many more islands. Specifically, this is the island Kiritimati.