Comment on Why CRT in sci fi deep space ships actualy make senseparentComments−theandrewbailey3yAnd for the past 10 years, almost every cheap electronic device has been permanently glowing blue because of them.EDIT: aren't modern blue LEDs based on GaN?−qbrass3ySilicon Carbide LEDs were the first true blue (not blue-violet) ones, but they were horribly inefficient.Doped GaN made blue LEDs viable, and LEDs in general more available.−Gordonjcp3yYah, the first ones were a very different shade of blue and really expensive.
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And for the past 10 years, almost every cheap electronic device has been permanently glowing blue because of them.
EDIT: aren't modern blue LEDs based on GaN?
Silicon Carbide LEDs were the first true blue (not blue-violet) ones, but they were horribly inefficient.
Doped GaN made blue LEDs viable, and LEDs in general more available.
Yah, the first ones were a very different shade of blue and really expensive.