On May 19, 2005, at 7:12 PM, Wallace Yang wrote:

> application, I would like to use a 4x20char LCD
> with backlight.  Low power consumption is of primary
> importance.  As I understand, LED backlit LCDs draw on
> the order of 100mA at 5V.

I don't see why that should need to be true with modern LEDs; it sounds
like a spec from the "dark ages" of 20mCd yellow-green LED panels with
20+ LEDs for 'even illumination.'  Between modern ultrabright LEDs and
better understanding of light distribution, you ought to be able to do
much better.  See for instance:

http://www.goldmine-elec-products.com/prodinfo.asp?number=G14922
http://home.clear.net.nz/pages/joecolquitt/led+lcd.html

BillW
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