9 Feb
2006
9 Feb
'06
12:30 p.m.
Wrong. Blue (and White) LEDs are a relatively recent invention. I'm not
sure when they first came into existence, but it was WAY after 1991; it was
closer to or even after 2000, although it might have been in the very late
1990's. White LEDs were even later. There were 3 color LEDs in 1991, but
not RGB.
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