Doug Salot wrote:
A lawyer asked me if I had any devices made before
1997 that used RGB
LEDs. I know that RGB LEDs have been around since at least 1991, but I
don't have anything to offer them. If you have a device that uses a mux
and PWM with the LEDs, that would apparently please them very much.
On Wed, 8
Feb 2006, Brad Parker wrote:
I remember costing blue leds for a front panel
sometime around 1991. They
were hundreds of dollars (I think out purchasing person spit out here coffe
when she got the info :-)
we went with red and green :-)
In those days, "Tri-state" LEDs were available, that would give you
a single LED, with red and green (and yellow (not brown)) depending
on polarity