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Re: e-Ink and other paper like displays

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On 20/05/2020 02:35, Rick C wrote:
> I have periodically reviewed the e-Ink market looking for usable products without a lot of experimentation.  Most of what I find are displays without driver boards, a few high priced combos of displays with separate driver boards, but few docs and very few displays an driver boards with some sort of docs and/or library support.  The one thing that always seems to be missing is an easy to find and easy to read document describing exactly what they will do and what they won't do.  Mostly the docs are a couple of poorly made videos with no real explanation.
> 
> I saw one video (don't recall the vendor or site) showing a display with partial updates such as would be needed for a display of a real time device such as a... ventilator for example.  That looks promising.  But the display is monochrome and I still didn't find any docs on exactly how it would be interfaced to a system.
> 
> My main interest in them is to provide a display optimally viewable in any lighting.
> 
> There seems to be more than one manufacturer of these displays.  When they are sold by third parties (mostly through Aliexpress) it is hard to tell which brand of display they are.  If I understand correctly one company owns the patents with multiple manufacturers licensing.
> 
> All of the inexpensive displays are pretty tiny.  One maker includes touch screens even on 1.5 inch displays!  My finger tip is not much smaller than that.  The prices rise rapidly with size.  A 4 inch display is pushing $40.
> 
> Anyone used any of these displays?  Anyone happy with these displays?  Tips?  Cautions?
> 

I have only seen them on a couple of evaluation boards - I haven't had 
use of them myself.

The advantages of them are very low power, high resolution (if you want, 
and pay for it), and readability in sunlight.  But they are /slow/. 
They are often too slow for "real time devices" - if you use e-ink for a 
digital clock, for example, it will feel sluggish on the seconds digits.

For good viewing in a wide range of lighting, also look at OLED 
displays.  These can be very nice, high resolution, full colour, and 
give more brightness for the power than backlit LEDs.  But no display 
technology is ideal for /all/ lighting conditions - there will always be 
some compromise.

Really, to test the display in different lighting, there is no 
substitute to getting some demo boards and looking at them.

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e-Ink and other paper like displays Rick C <gnuarm.deletethisbit@gmail.com> - 2020-05-19 17:35 -0700
  Re: e-Ink and other paper like displays David Brown <david.brown@hesbynett.no> - 2020-05-20 08:48 +0200
    Re: e-Ink and other paper like displays Rick C <gnuarm.deletethisbit@gmail.com> - 2020-05-21 00:44 -0700
      Re: e-Ink and other paper like displays Theo <theom+news@chiark.greenend.org.uk> - 2020-05-21 15:06 +0100
      Re: e-Ink and other paper like displays David Brown <david.brown@hesbynett.no> - 2020-05-21 17:26 +0200
  Re: e-Ink and other paper like displays queequeg@trust.no1 (Queequeg) - 2020-05-21 13:45 +0000
    Re: e-Ink and other paper like displays Rick C <gnuarm.deletethisbit@gmail.com> - 2020-05-21 08:53 -0700
  Re: e-Ink and other paper like displays Dave Nadler <drn@nadler.com> - 2020-05-22 15:11 -0700
    Re: e-Ink and other paper like displays Rick C <gnuarm.deletethisbit@gmail.com> - 2020-05-22 17:16 -0700
      Re: e-Ink and other paper like displays Dave Nadler <drn@nadler.com> - 2020-05-23 06:18 -0700
        Re: e-Ink and other paper like displays Rick C <gnuarm.deletethisbit@gmail.com> - 2020-05-23 12:29 -0700
          Re: e-Ink and other paper like displays Dave Nadler <drn@nadler.com> - 2020-05-23 17:55 -0700
  Re: e-Ink and other paper like displays Anssi Saari <as@sci.fi> - 2020-05-30 09:50 +0300
    Re: e-Ink and other paper like displays Rick C <gnuarm.deletethisbit@gmail.com> - 2020-05-30 11:49 -0700

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