I am looking for suitable display options for a battery-powered device, kind of like an e-book reader/tablet/mid device.

  • size - 10" or so.

  • resolution - preferably a high DPI

  • colour - mono/gray

  • static - low refresh rate/static is fine

  • power - low enough to last 12 hours on a ~1000 mAH battery assuming 80% static usage.

  • Brightness - readable in-doors, mainly.

I know of the existence of E-ink, Pixel-Qi and even ChLCD displays. I am wondering if there are any other display options available?

  • \$\begingroup\$ Hobby/prototype/production? \$\endgroup\$ – Nick T Nov 25 '10 at 5:37
  • \$\begingroup\$ ultimately, production. \$\endgroup\$ – sybreon Nov 25 '10 at 14:13
  • \$\begingroup\$ How much power can you spare for the display? Do you need colour? Is semi-static OK? Resolution? \$\endgroup\$ – stevenvh Nov 28 '10 at 15:34
  • \$\begingroup\$ I was going to recommend trying to get away with a custom segmented LCD, but if you want a 10" screen, that's a ton of real estate. \$\endgroup\$ – Nick T Nov 28 '10 at 16:34
  • \$\begingroup\$ resolution - preferably a high DPI; colour - mono/gray; static - low refresh rate/static is fine; power - enough to last 12 hours on a ~1000 mAH battery assuming 80% static usage. \$\endgroup\$ – sybreon Nov 28 '10 at 16:59

1000 mAh / 0.8 / 12 hours = about 100 mA, which is plenty. A parametric search on DigiKey landed half a dozen monochrome LCDs (Display Modules - LCD, OLED, Graphic), and they're all expensive ($200). First on the list is DMF-50036ZNBU-FW-BAN, which draws 30-40mA. I wouldn't recommend getting any of these as they are expensive, but you may be able to source similar ones from China. I meant to put this as a comment to the OP, but I don't have the points yet.

  • \$\begingroup\$ This is a fine answer. No reason to make it a comment. \$\endgroup\$ – Kevin Vermeer Dec 4 '10 at 6:01

It seems like your requirements have narrowed it down to a display type you already listed: e-ink. The others you mentioned all seem very experimental or in very specific applications.

I don't know how many e-ink manufacturers there are, but "E Ink Corp." has a 9.7" prototype kit for sale (out of stock as of 2010 Nov 28). You might also be able to hack a Kindle DX (same 9.7" screen), not sure what's in them.


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