iFixit Shares iPad Mini 7 Teardown, Adds Mystery to 'Jelly Scrolling' Fix

[splifingate]

mice-nuts

Relative to other mammalia, they are quite large

 

[bzgnyc2]

I don’t think so. This has to do with the wiring used to control each pixel. Because it’s not feasible to wire each pixel separately, the wiring is generally a matrix (grid) of horizontal and vertical wires (rows and columns). To switch one pixel, the two wires corresponding to its row and column are activated. Conversely, this means that only a single pixel can be controlled at any given time (because if you’d activate two rows and columns at the same time, their intersections would ambiguously match four pixels). Refreshing the display thus means activating each pixel individually one after the other, line by line and column by column. This process necessarily introduces a time delay between updating the first to the last pixel.

The only way to counteract this is to increase the refresh speed, but that is costly (tighter tolerances on everything) and consumes more energy. It’s probably hardly perceptible on 240 Hz TVs and monitors.

Thanks for all the explanations. It seems then until some far-off display technology comes about, all mass market display manufacturers can do today is optimize the design for a use case and optimize the implementation to minize the effects? That is, choose a refresh direction relative to the expected orientation and scroll direction and then optimize the combination of refresh rate, pixel response rate, etc within the envelope of cost, energy usage, color accuracy, FRC, PWM, and a host of other things issues probably not on my radar?

 

[splifingate]

until some far-off display technology comes about

Oh, it's coming.

Seems silly to wait for it in darkness, eh?

 

[bzgnyc2]

Oh, it's coming.

Seems silly to wait for it in darkness, eh?

Okay but now you have to share the name of this technology...I am familiar with OLED, microLED and more recently PHOLED. Are these refreshed in a different enough way that they wouldn't have this issue or is it a whole other technology beyond those?

 

[splifingate]

Okay but now you have to share the name of this technology...I am familiar with OLED, microLED and more recently PHOLED. Are these refreshed in a different enough way that they wouldn't have this issue or is it a whole other technology beyond those?

How is it possible that I would be able to definitively prognosticate a "some far-off display technology"?

If I were to time-travel to 1817, it wouldn't matter to anyone (including me) that a BMW would release the i3 in 2013.

It's not my purview to share something not already envisioned (no matter how unlikely that vision may be).

It was not so long ago (at least on my timeline) that OLED tech was not even a remote conception.

You don't have to trust me, but newer display tech will be introduced in the furtre

 

[bzgnyc2]

How is it possible that I would be able to definitively prognosticate a "some far-off display technology"?

If I were to time-travel to 1817, it wouldn't matter to anyone (including me) that a BMW would release the i3 in 2013.

It's not my purview to share something not already envisioned (no matter how unlikely that vision may be).

It was not so long ago (at least on my timeline) that OLED tech was not even a remote conception.

You don't have to trust me, but newer display tech will be introduced in the furtre

Misunderstanding -- I thought you were hinting that you already knew of a new technology about to come out.

Otherwise my experience is that unless a product is in active commercialization/production scale-up, it's many years away. Laboratory eurekas are like 20 years to market.

As far as display technology, unless someone knows something special coming down the pipeline, I suspect we'll be using variations on LCD and OLED for at least the next few years. If microled makes it to the mass market, I'm guessing 5 years before it reaches iPad sizes. If none of these are better as far as this issue, I think we'll be making the best of what we got for a while. You certainly know more about these technologies than I do but that's my guess based on what I've seen from these technology cycles.

 

[splifingate]

You certainly know more about these technologies than I do

Nah; on the contrary . . . the tech that will be released in the near-term/future is not anything that we--now--hold, or appreciate

The artists behind Dick Tracy's use of a tech in 1946 that would not become commonplace until 2015 (or, should I say: "Today" (as the ubiquitous use of such currency in a thing is as prescient/relevant as anything else)).

I had a discussion with one of my students, last week (when they emoted that that they wished for a more interactive display), and I replied:

"Dude. The things you'll see and use in your lifetime will surpass anything you experience, today!"

Interactive holograms; spatial-input; corneal implants; etc. will become as normal as the things we share-similar, today.

It's not a matter of $ *emoji*