big e-ink display, 7-inch or more


20 posts
by cil8 » Tue Aug 19, 2014 12:56 pm
Hi all.

I'm wondering if exists a big e-ink display (7 inches or more) that could be driven by RPi. Not through the HDMI connector, I'm thinking about GPIO, serial, or whatever is available on the expansion header.
Unfortunately I'm not so expert about displays and their electrical specifications, so I don't know exactly what to look for.
I can write Python and/or C code to drive the display, as long as the protocol documentation is provided.

Thank you in advance for any hint.

Bye
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by FLYFISH TECHNOLOGIES » Tue Aug 19, 2014 1:04 pm
Hi,
cil8 wrote:I'm wondering if exists a big e-ink display (7 inches or more) that could be driven by RPi.

Any commercial e-ink display can be driven by RasPi.

One usable link with some data and few links:
http://www.essentialscrap.com/eink/


Best wishes, Ivan Zilic.
Running out of GPIO pins and/or need to read analog values?
Solution: http://www.flyfish-tech.com/FF32
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by cil8 » Wed Aug 20, 2014 12:38 pm
Wow... that's a great news to me. Does this mean there's a wiring standard for e-ink displays? Could you tell me more about it?

Thanks a lot!
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by FLYFISH TECHNOLOGIES » Wed Aug 20, 2014 1:45 pm
Hi,
cil8 wrote:Does this mean there's a wiring standard for e-ink displays?

Unfortunately, no.

cil8 wrote:Could you tell me more about it?

You have two possibilities:
- to obtain "raw" display and create your own software & hardware interface for it.
- to buy also related driver board for the display and reduce your effort just down to application software.

The first option makes sense if you're thinking about creating a product with target production counted in thousands.
The second option is proper when it is about minor number of displays and/or you can't afford to spend few thousand Euros/Dollars for development.


Best wishes, Ivan Zilic.
Running out of GPIO pins and/or need to read analog values?
Solution: http://www.flyfish-tech.com/FF32
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by cil8 » Wed Aug 20, 2014 3:29 pm
I'm planning a home project for personal use. Definitely not the first option :-)

If needed I'm willing to do a lot of coding, but my limits are all on the electronic side.
I can buy a driver board as long as it doesn't require me any more than taking care of the wiring.

So my "quest" now is look for the display + driver board pair, and how to connect the driver board to the RPi.

Thanks for your hints!
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by FLYFISH TECHNOLOGIES » Wed Aug 20, 2014 4:20 pm
Hi,
cil8 wrote:So my "quest" now is look for the display + driver board pair, and how to connect the driver board to the RPi.

Yes. (Add "SPI" to your google search string).
One suitable display + driver board is: http://www.pervasivedisplays.com/products/74 (click Development kit tab)

Before purchasing any display, make sure that a fat datasheet document is available !!!


Best wishes, Ivan Zilic.
Running out of GPIO pins and/or need to read analog values?
Solution: http://www.flyfish-tech.com/FF32
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by j0z0r » Tue Feb 17, 2015 12:31 am
Here's a good write-up of a common 6 inch display:
http://spritesmods.com/?art=einkdisplay&page=1
You would have to solder the board yourself, but all the files are there as well as a BOM
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by Xanderite » Wed Feb 25, 2015 5:22 pm
Hey, considering a similar personal project myself, does the OP have any tips/warnings about pursuing it?
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by cil8 » Mon Apr 20, 2015 3:31 pm
Sorry for the late answer, I'm reading your question right now.

I still didn't start working to the project. I realized that I need at least a 10 inches display, or bigger. Unfortunately a display this big plus its driver board ( i.e. http://www.pervasivedisplays.com/products/102 ) is very expensive. So I decided to hold this project over.
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by bigla » Sun Feb 07, 2016 4:41 pm
cil8 wrote:Sorry for the late answer, I'm reading your question right now.

I still didn't start working to the project. I realized that I need at least a 10 inches display, or bigger. Unfortunately a display this big plus its driver board ( i.e. http://www.pervasivedisplays.com/products/102 ) is very expensive. So I decided to hold this project over.


Same for me here, but i am eager to find a solution as soon as this here is affordable (below 100€)
GDEP133UT1-S / GDEP133UT1
http://www.good-display.com/products_de ... d=325.html

Seems to be a Very similar to EN133UT1 which is sold by E Ink... But my understanding in this matter is rather limited.

All i could collect was some information on how to get a 6" Screen to work (http://essentialscrap.com/eink/ )
Stream pictures to it over Wi-Fi (http://spritesmods.com/?art=einkdisplay)
And that Some SoC or Single Board Computers have an epd (ElectroPhoreticDisplay / Electronic Paper Display) controller --- but not the Driver.

Researching about epd controllers i found Epson's S1D13522 / S1D13521 /S1D13524 to be a frequently used part. (http://vdc.epson.com/index.php?option=c ... Itemid=435)

It is necessary to keep in mind though, that the source and gate drivers need to be adjusted (I don't know how). And then all the software side problems that will come up...

Does anyone have more up to date Information?
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by PieRas » Fri Jul 08, 2016 7:26 pm
Hey guys, I'm also joining the question...
If I get the Pervasive Displays e-ink display with the MCU and attach it directly to the RPi will it work immediately or I need to get some sort of software?

I have no experience in software so will it be complicated?

thanks :D raspberry rulz
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by T4b » Sun Aug 21, 2016 2:29 pm
PieRas wrote:If I get the Pervasive Displays e-ink display with the MCU and attach it directly to the RPi will it work immediately or I need to get some sort of software?

The Pervasive Displays one has a USB mass storage controller (not included), you would use a program they supply to convert images to a special format, then copy that image onto the mass storage device presented by the controller, and it would be displayed.

But you get 1-bit colors, no grayscale, just black and white, so the image would be much, much worse than on recent e-readers.
Which cost less than the panel alone here.

After looking into it (again. Already checked a couple of times over the past years) for half an hour I strongly suspect you are still best off buying some e-reader and using it as an external display.

You would still need to write your own app for transferring the images. I guess on the computer side you would hack a pdf reader so it can use an e-Reader as an external display, and on the reader side you would need to write an Android app which connects to your pdf viewer. And in the case of the Sony Reader which I have, I would need to root it first.
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by nzin » Tue Sep 06, 2016 12:04 am
Hi,

just for the record, I sucessfully bought and command a 10.2'' Pervasive Display with a Raspberry Pi (3).
At first I used a usb-to-screen card they provided (MpicoSys USB2TCM Interface), but I wasn't satisfied, then I came across this github repo (https://github.com/Ceruleous/EPaperReader) that helped me a lot to wire directly from the GPIO to the screen card, and display whatever content I want:
Image

But true: the refresh rate is low, the screen is expensive and you don't have grayscale pixel, just black and white.
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by RevAndrey » Fri Dec 30, 2016 9:22 pm
Pervasive Displays have since come up with a 2nd generation of this controller+screen, which has faster refresh rate and partial (flashless) refresh.

Here's a video demonstrating it: https://www.youtube.com/watch?v=AMvEiRYjxRw
And here's the product page with specs: http://www.pervasivedisplays.com/kits/mpicosys102

Do you think it would be possible to use this as an ePaper screen for Raspberry Pi connecting directly to GPIO?

The fact that it's black and white isn't an issue for me, since I'm mostly looking for an ePaper display to run Terminal + Vim.

Many thanks,
Andrey
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by TonyD » Tue Jan 03, 2017 1:22 pm
They look interesting. Any idea to their pricing?
Tony
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by RaTTuS » Tue Jan 03, 2017 2:04 pm
TonyD wrote:They look interesting. Any idea to their pricing?

digikey has htem for $300 http://www.digikey.com/product-detail/e ... ND/5400956
How To ask Questions :- http://www.catb.org/esr/faqs/smart-questions.html
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by cil8 » Wed Jan 25, 2017 9:34 am
RevAndrey wrote:ePaper display to run Terminal + Vim


I think you should go for an e-ink display with HDMI input port. It lets you to have a terminal just plugging it in. Using GPIO there is no standard protocol to drive a display as a local display, and terminal emulators expect to show their output on local displays.
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by RevAndrey » Wed Jan 25, 2017 5:53 pm
cil8 wrote:I think you should go for an e-ink display with HDMI input port. It lets you to have a terminal just plugging it in. Using GPIO there is no standard protocol to drive a display as a local display, and terminal emulators expect to show their output on local displays.


Do you know of any eInk displays with an HDMI port?
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by 277roshan » Tue Apr 11, 2017 2:28 pm
nzin wrote:Hi,I am also trying to work with 10.2'' Pervasive Display. Currently I am having trouble converting everything from 7.4 to 10.2. You said you got it working. Can you help me set up my eink display?

just for the record, I sucessfully bought and command a 10.2'' Pervasive Display with a Raspberry Pi (3).
At first I used a usb-to-screen card they provided (MpicoSys USB2TCM Interface), but I wasn't satisfied, then I came across this github repo (https://github.com/Ceruleous/EPaperReader) that helped me a lot to wire directly from the GPIO to the screen card, and display whatever content I want:
Image

But true: the refresh rate is low, the screen is expensive and you don't have grayscale pixel, just black and white.
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by mahjongg » Tue Apr 11, 2017 5:24 pm
I really doubt anyone will be (has been) making an e-ink display with a HDMI input, the two technologies do not mesh well, e-ink is very slow and very low power, HDMI supposes a display with a high refresh rate that uses some power.
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