I guess you forgot to scroll down to the part where he said "I got my first and only white on blue from adafruit. It was slow and needs back light in well-lit indoor environmenit "
But if I turned off the back light, I can see outdoors.
Here's a quick and dirty comparison
I guess you didn't realize that this is a conversation about white/blue lcd in OUTDOOR environmenit, not INDOOR environmenit.
some displays, specifically the ones with white characters on a blue background, are virtually impossible to use without the backlight.
Sounds like liudr wins and you lose.
However, it doesn't work, and regardless how much I try, the display stays totally blank.Shouldn't I be able to see black squares if it got power?