Aclaratory notes about e-ink - Printable Version +- PINE64 (https://forum.pine64.org) +-- Forum: PineNote (https://forum.pine64.org/forumdisplay.php?fid=171) +--- Forum: PineNote Hardware (https://forum.pine64.org/forumdisplay.php?fid=174) +--- Thread: Aclaratory notes about e-ink (/showthread.php?tid=14834) Pages:
1
2
|
RE: Aclaratory notes about e-ink - TechDragon - 01-31-2022 Well, regardless of individual hardware devices, if DES displays start shipping, they are going to easily complete with the overpriced eInk displays and provide much needed competition in the “e-paper” market which is great news for everyone! RE: Aclaratory notes about e-ink - fasani - 02-22-2022 (09-06-2021, 09:04 AM)jiyong Wrote:(09-06-2021, 02:19 AM)CounterPillow Wrote: As for your question about the screen, all eInk screens are made by precisely one company. In essence, if you have seen a 10.3 inch eInk display, you know exactly which one it uses. Correct me if I’m wrong here, DES screen resolution is: 1680*2232 But that screen has a color filter on top that is always there, which enables the color part, down the filter is still a 16 grayscale Eink. Which leads me to believe that using color you have really that resolution/3 Note extracted from https://goodereader.com/blog/electronic-readers/des-slurry-vs-e-ink-kaleido-2 The Onyx Boox Nova 3 Color for example has a color resolution of 624×468, and can display black and white content at 1872×1404 with 300 PPI. One of the drawbacks of his CFA is that color cannot be turned off and on larger screens, the color gamut gets deluded, making everything everything a bit washed out. Quote:The Onyx Boox Nova 3 Color for example has a color resolution of 624×468, and can display black and white content at 1872×1404 with 300 PPI. One of the drawbacks of his CFA is that color cannot be turned off and on larger screens, the color gamut gets deluded, making everything everything a bit washed out. RE: Aclaratory notes about e-ink - jiyong - 02-22-2022 (02-22-2022, 12:29 AM)fasani Wrote:(09-06-2021, 09:04 AM)jiyong Wrote:(09-06-2021, 02:19 AM)CounterPillow Wrote: As for your question about the screen, all eInk screens are made by precisely one company. In essence, if you have seen a 10.3 inch eInk display, you know exactly which one it uses. I'm not sure what exactly you are trying to tell me, but just because they have similar resolutions, doesn't necessarily mean they are the same kind of display. DES is a different screen technology and not the same as Kaleido. From your link: "The DES display module adopts a new display structure which is completely different from the current micro-cup and micro-capsule structure. The structure forms a layer of cofferdam structure on the surface of the TFT by forming a cofferdam around the periphery of a single pixel electrode, and the bank covers the source and gate lines on the TFT. The patterned structure is characterized in that each pixel electrode is surrounded by a cofferdam, the microstructure is not visible on the front side, and the number of layers is reduced, thereby obtaining the higher definition and resolution display effect. In order to distinguish it from the traditional micro-cup and micro-capsule technology. Basically this tech uses 3 stages, ITO Glass, Plasma and a TFT. E INK uses TFT, adhesive, the EINK Panel, Color Filter Array, ITO film, adhesive and a protected layer. There is often an additional layer of glass, protecting everything." RE: Aclaratory notes about e-ink - fasani - 02-22-2022 Yes sure is completely different technology. The only similar thing is that both have a RGB color filter on top. DES uses a mosaic RGB pattern. And that is a bit more efficient in terms of equivalent resolution. Here are more information: wiki.laptop.org/go/Display . OLPC happens to use a screen with same arrangement so the info there applies. I've one of this DES displays lying around since last September or so and I was waiting that someone releases a controller when I spotted Pine64. This is how the RGB matrix looks like in the Microscope: But I guess first will get the PineNote and experiment with existing epaper and then at some point try to see if I can modify the driver to drive the color one. If the resolution is like they claim with the formula of the laptop that uses the same pixel arrangement, it would be: 1680/ sqrt(3) = 969 2232/ sqrt(3) = 1288 but I will confirm this once I get it to refresh RE: Aclaratory notes about e-ink - fasani - 02-22-2022 By the way, can anyone tell me how does the PineNote Eink works in Linux? Would like to try the Ubuntu version. Is possible to boot with Eink enabled at this point? Seen only this video and looks usable already… I really want to give it a try! RE: Aclaratory notes about e-ink - quantumjelly - 02-23-2022 (09-05-2021, 02:35 PM)jiyong Wrote:(09-05-2021, 01:55 PM)zxorg Wrote: This video says the Pine Note has 60Hz refresh rate: I just saw the BigMe B1 coloured is launching on the US and recognized the design. Is colour the only difference? Is the internal hardware the same/very similar to the point software from the pinenote could be flashed into the BigMe (display driver would need to be changed at least I guess)? And is there an avenue for a future colour display upgrade compatible with current hardware or would that be a major hardware change/revision? |