I found that New Haven Displays (www.newhavendisplay.com) has some good
displays at a reasonable cost.  I have been using their 128x128 COG graphics
display (NHD-C128128BZ-FSW-GBW for $28) with several projects.  Granted you
have to write code to turn on or off every pixel, but they work great.  As
someone else also noted, these run on 3.3 volts.  I use a pair of 74LVC4225
to convert the 5v signals to 3.3v.


David

David V. Fansler
s/v Annabelle
dfansler@dv-fansler.com
www.dv-fansler.com

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
Bob Blick
Sent: Wednesday, March 10, 2010 5:10 PM
To: Microcontroller discussion list - Public.
Subject: Re: [OT] LCD display for thermostat


On Wed, 10 Mar 2010 13:32:29 -0800 (PST), "alan smith" said:
> For proof of concept...and not sure how many are going to be made, I'd
> prefer the integrated electronics...then perhaps spin it for just glass.

There's very little available in bare glass off-the-shelf. Minimum order
quantities and NRE costs for custom LCDs have come way down and that may
have something to do with it. 

For your proof of concept maybe a small graphic LCD. The power
requirements will be higher but you could at least play around with
digit size and placement.

Actually if it's a proof of concept you could buy some thermostats
retail and harvest the displays.

Cheerful regards,

Bob



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