7 ms·
M4 MacBook Pros use a quantum dot (QD) film rather than a red KSF phosphor film
- Sephr 2y agoDoes this mean better motion response times? The M-series MacBook Pro displays have notoriously smeary displays while displaying high-motion content, so this would be a welcome addition.
- numpad0 2y agoWas phosphor afterglow ever an issue with LCDs? Just wondering
- compass_copium 2y agoLCD BLUs have a uniformly glowing background which is filtered by the LCD to make pixels. If there is delay in pixels updating, it would be the LCD causing it.
- numpad0 2y agoaw. of course. Backlight. Filtering. My brain was hallucinating UV emitting LCD with phosphors in place of filters, that's OLED... thanks.
- xattt 2y ago> latest Cd-free QD films are very efficient, feature as good or better color gamut and better motion performance Possibly yes.
- brailsafe 2y agoSo far, the answer anecdotally is no, at least not in situations where lit pixels are moved quickly into black areas. In practice, my obnoxious green text black background terminal was kind of gross to scroll, but haven't experimented much with others yet. Playing games has thus far been fine, scrolling in other contexts is fine for practical purposes. Happy to update this if you want after I ruin my new MacBook by experimenting more
- spacedcowboy 2y agoHmm. I just set up a 4K terminal (542x143 chars) using the 'homebrew' theme (green on semi-transparent black) and did prompt% ls -larS RemoteAstrophotography_com-M63-Stellina.zip | awk '{print $5}' 4514072533 prompt% cat RemoteAstrophotography_com-M51-Stellina.zip| base64 ... and it is happily scrolling up the screen, lightning fast, way way too fast to read, and responding instantly to CTRL-Q/S. Seems ok to me.
- glhaynes 2y agoThe response being referred to here is the quickness of the pixels' ability to change.
- brailsafe 2y agoCertainly a clever way to test it. In terms of response, I meant that at least on a fully black background, you should see ghost lines of text between where the line of text was and where it's going, almost like a mouse cursor with a trail
- impure 2y agoNotebookcheck says no. Their M4 Pro only did 5-10% better than last year which is still bad.
- compass_copium 2y agoIt shouldn't make a difference. The film is illuminated by a blue LED and constantly glows uniformly yellow, which is the same mechanism as the white LEDs in a traditional display (blue emitter illuminates yellow phosphor coating). The LCD filters this to make specific pixels and would be more responsible. I worked for a now defunct QD company.
- superjan 2y agoThe way I thought LCD/LED displays worked was by RGB filtering a uniform white backlight. Is it only this design that does fosforescence per subpixel? Sounds way more energy efficient.
- usrusr 2y agoOh, phosphorescence per subpixel (instead of flooding all in "white" that was created through phosphorescence from blue in a central place) sounds like an awesome power optimization for where you still want/need subtractive LCD instead of some *LED with additive per-(sub)pixel emitter. For those following outdoor sports tech, I wonder if this might be the secret sauce that allowed Garmin to abandon transflective screens in the Edge 1050, which unlike their post-transflective watches is still technically an LCD. (the not secret at all meat of the change is a depressingly massive battery and big loss in runtime, but I suspect that the battery alone isn't enough to explain that the loss isn't even bigger)
- compass_copium 2y agoSorry, the film's yellow and LED's blue lights combine to make white (or, more accurately, a color that makes white when the RGB filters are open 100%).
- xattt 2y agoI’ve noticed similar “mini” news stories trickle out after Apple’s announcements. Does this happen organically, or does PR drop tidbits like this to select sources? It seems like a very specific thing for a reporter to ask and find out about.
- kmonsen 2y agoI think Apple does not specify to give themselves flexibility to change. It’s not sure everyone will get the same panel.
- MBCook 2y agoIt could simply be the people are now getting their hands on them and testing them for things that Apple didn’t specifically say in their announcements.
- thrw42A8N 2y agoThat's my interpretation too, people start finding out stuff when they get their hands on it, and each has their own interests.
- Syonyk 2y agoLook at the Tweet (X? Blurp? What do we call them now?) - it's got the spectrum of the panel, comparing previous and newer panels. If you know what you're looking for in those, you can identify a lot of different phosphor configurations just by the particular shape of the RGB peaks - the older ones have a distinctive multi-peaked red emission that I've seen in various LED bulbs as well over the years. I doubt Apple mentioned it to anyone. Applying a spectrometer to any new light emitting device is just the sort of thing some people enjoy doing.
- aaronbrethorst 2y agoXits
- jsheard 2y ago> the Tweet (X? Blurp? What do we call them now?) They're officially just called "Posts" now. It's a hell of a downgrade from how distinctive the old terms were, no wonder people still call them Tweets. Community Notes was also set to be called Birdwatch originally, continuing the bird pun theme.
- brailsafe 2y agoIs there more to the thread or just this one tweet/X thing? Response times notoriously suck on MacBooks, it would be nice to see that remedied, anecdotally it doesn't seem like that's happened yet. Edit: Nevermind, same tweet seems to have been quoted across a bunch of different other news sites. Apparently Blur Busters claims an improvement, I'll try it out and see how it is in some other contexts.
- anonym29 2y agoIf you're not logged in to Xitter, navigating to a Xeet allows you to view the Xeet, but not the Xomments. Fortunately, there are open-source, self-hostable, privacy-preserving front-ends for Xitter, such as Nitter. If setting it up yourself is too much work, you can use other public instances. One such instance is called xcancel. Load the Xeet as normal, then simply append "cancel" to the domain name before the period in your URL bar and hit enter :)
- bsder 2y agoI thought nitter shut down because of the Xitter api changes.
- nicce 2y agoThere were some workarounds, most buried in here: https://github.com/zedeus/nitter/issues/983 https://github.com/zedeus/nitter/issues/983
- chatmasta 2y agoNo need for workarounds. Only the flagship nitter.net was blocked. Nitter is an open source project and maintains a list of working instances on its wiki: https://github.com/zedeus/nitter/wiki/Instances https://github.com/zedeus/nitter/wiki/Instances
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- AceJohnny2 2y agoI cannot fathom why someone would create an account to post something so inane, so I'm guessing this is a bad attempt at farming account reputation.
- newZWhoDis 2y agoI don’t care how much they improve the CPUs, not upgrading before OLED
- matrix87 2y agois OLED unequivocally better than IPS?
- adgjlsfhk1 2y agothe pixel response and contrast absolutely are. Battery life is a little worse (especially in bright mode). OLED pixel response is around 100 micro-seconds compared to ~5ms for IPS, and each pixel dims individually allowing for actually good HDR
- bhouston 2y agoI think so, more vivid colors and better blacks and viewing angles. At the risk of burnin.
- matrix87 2y agoI'm just worried about the burn in from coding If you buy a macbook it's supposed to last a long time, but I'm kind of skeptical of getting one right when they release instead of a tried and tested IPS mbp
- newZWhoDis 2y agoMake the screen a wear item then. OLED has been better in every way except longevity since 2018. 6 years later I’m not buying a piece of garbage LCD for $6k
- newZWhoDis 2y agoDoes a bear relieve himself in the woods?
- bmer 2y agoI've heard that there are screen lifetime issues? Also, from my limited experience with a single OLED screen, it seems that most stuff was created for a certain kind of screen without as much colour fidelity, and now that stuff seems far more...obnoxiously "saturated"?...on an OLED screen.
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- analog31 2y agoInteresting. As I understand it, shifting the red curve to shorter wavelengths, even by a seemingly small amount, would improve visibility. And something I've learned is that red vision varies by a fair amount from person to person.
- bhouston 2y ago> And something I've learned is that red vision varies by a fair amount from person to person. Is there vision tests similar to audio tests where they figure out one's individual responses to different wavelengths of light? Super neat. It would be cool to simulate different people's vision, not just colour-blindness but the more subtle variations.
- NL807 2y ago>Is there vision tests similar to audio tests where they figure out one's individual responses to different wavelengths of light? Super neat. Unlike consumer audio equipment where you can easily do a frequency sweep to test hearing, you'd need a specialist light source to do the same. Something like a tunable laser. You could probably use a prism to do a similar sweep from a white light source.
- AlotOfReading 2y agoYou don't need a frequency sweep. You take three broad spectrum lights and ask people to adjust their brightnesses to match a selection of reference lights. The tool that does this is called an anomaloscope and it was invented before things like lasers in order to study how color vision worked. That work became the basis of CIE (and other standards) that now define how your screen renders accurate colors. This setup is straightforward to adjust to different types of color vision too. They use 3 lights because that's how many opsins normal humans use for color vision. If you're testing di- or tetrachromats you can use 2 or 4 lights respectively, or 12 if you're testing intelligent mantis shrimp.
- robin_reala 2y agoThere was this one for blue recently: https://ismy.blue/ https://ismy.blue/ . Looking at the GitHub, it seems like there’s a red/orange fork at https://ismycolor.com/ https://ismycolor.com/
- kayson 2y agoWho manufactures their displays? I'm guessing they have more influence in the design or manufacturing than most players, but is this just a matter of them telling Samsung/LG/etc "ok, we're going to use your quantum dot displays now"?
- AlotOfReading 2y agoThey source from a combination of Samsung, LG, and BOE (Chinese display manufacturer). The way the arrangement typically works is that manufacturers will send Apple preproduction samples and Apple will decide which are worth using for upcoming SKUs. The manufacturer will build out production facilities to meet that demand and whatever specs Apple wants. Apple may also help with investment or R&D to develop products to meet feature roadmap targets and increase supplier competition. It's a very dangerous game for the manufacturers.
- bastloing 2y agoI love how apple has lots of these silent innovations. They work hard giving us great products.
- user32489318 2y agoAh yes, the classic disjointed graphs with unknown y-axis scales.
- consumerx 2y agothe stock price forces them to "innovate" lol
- 2809 2y agoHigh failure rate on those displays, calling it now.
- mrtksn 2y agointeresting, We have a failed Samsung QD TV and when we called for a technical support the guy correctly guessed the screen issue as if he has seen that many times before. What makes them unreliable? The problem isn't even in the QD film itself but the LED array, an LED fails and shorts then the other LEDs start working at higher voltage and overheat and causing cascading effect where the problem starts as small and develops into unusable.
- Toutouxc 2y agoWhy?
- cynicalsecurity 2y agoWhat if there was a place with all the zip of Nuka-Cola? Wouldn’t that be the cheer-cheer-cheeriest place in all the world? Where the rivers’ made of quantum and the mountaintops are fizz With fun and games and rides for all the moms and pops and kids! P.S. I have no idea what quantum or any of their terms mean. This is the closest that comes to my mind. Great marketing, I guess, or not.
- BlueTemplar 2y agoIt's actually a technical term, not marketing term this time : https://en.m.wikipedia.org/wiki/Quantum_dot https://en.m.wikipedia.org/wiki/Quantum_dot
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