Visionect 32“ or for outdoor soofa.co 42“ EInk itself has a Whiteboard now
Ask HN: Has any progress been made on large format E-ink displays?
21–30 of 173 posts
Re: Ask HN: Has any progress been made on large format E-ink displays?
#22This isn't perfectly within your search criteria, but you may still find it interesting. Just today I researched the available solutions for driving a ED097OC1 (compatible) display, which was built into the Kindle DX, has a diagonale of 9,7" and can be obtained for about 30€ [0].
There are some projects dedicated to driving the screen with an ESP32, which already has WiFi built in, has good low power modes and is pretty cheap as well [1] [2].
There's also a project driving e-ink displays with an stm32 [3] and one to do it with an FPGA [4].
Beyond 13" things get really expensive and hard to find - best I can do is 12,48" for 150€ [5].
[0]: https://aliexpress.com/item/32983492389.html
[1]: https://github.com/dqydj/PaperBack_EPaper_Display
[2]: https://hackaday.io/project/168193-976-e-paper-controller-ki...
[3]: https://hackaday.io/project/11537-nekocal-an-e-ink-calendar
Re: Ask HN: Has any progress been made on large format E-ink displays?
#23> It doesn't necessarily have to be E-ink proper, but I like the idea of having something that doesn't emit its own light. Such as an older LCD panel without a backlight? It doesn't sound like you're looking for anything special here.
Was thinking something similar - rather than an old panel you could take a newer large high res panel, chosen carefully so it's easy to separate from the back-light. I wonder what it would look like with just paper behind it instead? (or a slightly more reflective white material). I wouldn't expect color to "transflect" very well, but it might work ok as a simple 1-bit screen, fully transmissible as possible reflecti…
This sounds pretty similar to the display on the Pebble Time. It was a color LCD, sometimes marketed as a low power LCD or reflective LCD. For the majority of the time the display didn't use the backlight. They don't seem to be widely manufactured in my attempts to look for them... I should check again!
Re: Ask HN: Has any progress been made on large format E-ink displays?
#24If you don't need refresh, a drawing board can be suitable. You can use this. https://m.aliexpress.com/item/4000550295706.html?pid=808_000...
OLED can work very well and I have used it for night reading over the eink display Kindle use. You may be interested in reflective LCDs like epaper too. A window outside is better for weather and writing a todo list is a better reminder.
If you change your goal from remembering to do things and knowing how the outdoors is, you'll see that a large eink screen is not at all a productive use of money nor will it be the most optimal for knowing the weather or reminding you to do things. Writing notes in class helps you remember more than typing it, which in turn is better than taking a picture of the whiteboard.
Famous tech enterprisers such as bill Gates and Steve jobs did not allow electronics to be used as learning tools for their children because they deemed them too distracting.
Re: Ask HN: Has any progress been made on large format E-ink displays?
#25They exist. They still cost more than color displays. Larger sizes are still "call for quotation". The current sales pitch seems to be "you don't have to wire AC power to the sign", for bus stops and such.
Re: Ask HN: Has any progress been made on large format E-ink displays?
#26An iPad-sized, Kindle-like reader would be a godsend.
Re: Ask HN: Has any progress been made on large format E-ink displays?
#27Since the demise of Pixel Qi, does anyone else have a credible laptop screen based on e-ink, that has a high enough refresh rate to be usable, and/or the ability to switch from transflective/zero-power e-ink mode to a normal screen?
https://www.theverge.com/platform/amp/circuitbreaker/2020/1/...
There's going to be a big display revolution soon. Microled will probably outclass everything until we're at cheap retinal laser displays.
Re: Ask HN: Has any progress been made on large format E-ink displays?
#28This isn't perfectly within your search criteria, but you may still find it interesting. Just today I researched the available solutions for driving a ED097OC1 (compatible) display, which was built into the Kindle DX, has a diagonale of 9,7" and can be obtained for about 30€ [0]. There are some projects dedicated to driving the screen with an ESP32, which already has WiFi built in, has good low power modes and is pre…
So that's the current state of available stuff - The ESP32 stuff is quite interesting because it's all you need for an IoT module and in the right version it even has enough RAM for full screen updates.
I don't know specifics about the voltage conversion yet (these screens need about -20V - 20V), but I reckon that if you're really frugal you could make a battery powered wall display for under 60€ with this stuff - and that's part 1 of what I'm thinking of doing.
Part 2 would be to stick in a Pine64 SOPINE System On a Module [6], put on a capacitive touch layer [7] and run a mainline Linux with KOReader and maybe even a Wayland compositor to be able to run any Linux app (the high contrast GTK theme seems perfect for this application).
All hopefully for under 200€, which is a lot less expensive than other e-readers if that size and a whole lot cooler.
Any tips?
[6]: https://store.pine64.org/?product=sopine-a64
Re: Ask HN: Has any progress been made on large format E-ink displays?
#29Earlier quoted context omitted.
Like the sharp memory LCDs? They're pretty cool but I think the limiting factor is demand rather than technology (although they do have a pretty niche construction in that the control sillicon is AFAIK actually fabricated inside/along the LCD panel)
I'm actually more interested in a high refresh rate, non backlit monitor. Power isn't really an issue for desktops, so that part of eink doesn't appeal to me. I'm trying to limit my time looking at illuminated sources. Something like [1] with no front light. 1. https://youtu.be/kDk-t6XkFvc
What about a trans reflective display? I don't know about them being high refresh though.
Re: Ask HN: Has any progress been made on large format E-ink displays?
#30An iPad-sized, Kindle-like reader would be a godsend.
They have these but the contrast is so poor that it's hard to read for the resolution it claims to have. Try the mobile reader forums. There's large Chinese ebook readers.