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It was almost impossible to make the blue LED [video]

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Re: It was almost impossible to make the blue LED [video]

#101

Earlier quoted context omitted.

Lie? What's the lie? And, what is your evidence that it is actually a lie?

[flagged]

That is not what the video stated. His love of the ocean inspired blue being his favorite color.

Re: It was almost impossible to make the blue LED [video]

#102
There is something oddly humbling and inspiring about this story. The scientist thanklessly slaved away for a year and half before even producing the first breakthrough. It must require an immense amount of perseverance to do so. It also reminds me to the craft mentality and patience of Jiro dreams of sushi.

Very refreshing when contrasted with western mentality, where people can't wait to get promoted fast enough.

Re: It was almost impossible to make the blue LED [video]

#103
post #44

Which is why I was always baffled by the decorative lights in my old office. It was a wall with small scattered lights in different colors, so they used recessed LEDs. Fine. But instead of color LEDs with a neutral diffuser, it had red+green+blue triple LEDs to make white light, with a red/green/blue plastic in front to recolor it! I understand how this could be cheaper to assemble or maintain, but I'll never not bal…

The blue is nicer if you do that. Technology Connections has made 3 videos over the last 5 years mostly centering around how he hates the blue led lights used in holiday lights. I think I've only seen the 2 yr old one, but now that I have I can't unsee it. The blue is just too blue. If you see a set that is all blue instead of multi-color it's unbearable. It's just too blue. White light in blue plastic is where it's…

> White light in blue plastic is where it's at.

But the commenter said it was red, green, and blue LEDs together, with a blue diffuser over them. Depending on the diffuser, that could produce a more pleasant result (by allowing some monochromatic red and green through), but it presumably wouldn't solve the underlying problem that monochromatic blue light can be unpleasant.

Re: It was almost impossible to make the blue LED [video]

#104
post #61

Earlier quoted context omitted.

Who cares? Its a weird gotcha to get hung up on.

Doesn't look like he is dying on any hills to me. I agree with him, it's a funny small lie that is really common and people rarely notice.

I don’t think anyone takes it that seriously. It’s just a sweet story, and I like it.

Re: It was almost impossible to make the blue LED [video]

#105
post #100

Blue LEDs are the bane of my light-sensitive eyes' existence, and it pains me so to know they almost never existed at all. I keep a PC repair kit with me, even though I dont have a desktop computer, because I need to take all of my electronics apart and take these stupid blue LEDs out of them.

LED lighting wouldn't exist if not for blue LEDs. And neither would much of modern display technology. The importance of this discovery was not because we could make shiny blue light with it.

> And neither would much of modern display technology.

The vast majority of monitors and televisions are still LCD, and they would work Just Fine if they were still using fluorescent backlights.

It would have more of an impact on phones, but not earth-shaking.

Do blue OLEDs even use the same technology?

Re: It was almost impossible to make the blue LED [video]

#106
post #13
post #9

Earlier quoted context omitted.

Right after the blue LED was possible, everything that wanted to appear "high value" was sticking them in as power indicators, but they were much brighter than previous LEDs. I was at college at the time and you could read a book by the pulsating sleep blue lights from equipment.

As I read your statement sitting in my "bedroom office", I notice: My Vizio TV which has a piece of white electrical tape[0] with aluminum foil underneath. Incredible failure of engineering that has a setting to disable the power LED, however, that setting is ignored if you use the "black screen" option that kills the screen while the TV continues playing ... a feature you are likely to only use if you like to sleep…

Have you tried a sleep mask? I had to try a bunch before I found one (Manta Mask) that was comfortable and stayed on.

Re: It was almost impossible to make the blue LED [video]

#108
post #55
post #27

I'm looking for __pink__ leds, but can't find a good source. Digikey has only very limited options with many packages like 0805 missing.

https://www.lcsc.com/products/Light-Emitting-Diodes-LED_528....

Either out of stock or not 0805 ...
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