LGR Tech Tales - How Blue LEDs Changed Tech

Im blue da ba dee da ba daa

mavrick

They also make your computer run cooler. Very important.

steinaech

WOW!!!

floverSaeu09

An excellent video, Clint!

Hugo Prevost

Hey LGR! Do you plan on doing a look back at 3D realms? How they started and how influential they were back in the day? Been hanging for a retrospective.

the only thing I hated about the blue led was when they put it in every power button without thinking if it was a good idea. I had monitors where I needed to tape over the power button so the bright blue LED wouldn't penetrate my eyes and would turn me into a wise man!.

Ezydenias

btw can the bubs fit into the old streetlights like the ones with the lampshades because i saw google earth pic of two of them with that bight white color that lEDs use

This was awesome - not only for being a great historical piece, but also in a nice breakdown of how they work in general.

Rob Caporetto

Nice one. I'm a street lighting engineer by trade and the advance in the performance of the fittings year on year is still pretty spectacular. With lights now available in increments of 1W and tons of different reflectors you can really play around to only have exactly the amount of light and columns necessary and save a ton of money in the process.

Shapey Fiend

Hey LGR, lovely videos as always. Going out of topic here, mind giving your opinion on the Bethesda Creation Club situation?

Wallace Fung Wooh Sheen

This is a really neat run-down to the lead up of blue LED technology. Thanks for making it.

Ois

Your Tech Tales episodes are always very professional and entertaining. Thank you!

Chris Rogers

cool vid!

David La Roche

Ah, we meet again my arch nemesis, rampant destroyer blissful darkness in bedrooms the world 'round. And why, I ask? A power indicator you call it? Repugnant ego I say!

Jonathan Patterson

This is fascinating. Thank you for making this video.

Amazing, though seems to definitely make sense with the comment above about blue OLED proving difficult, possibly as well as the blue color being a bit more unreliable than the others. Of course, this is a topic of its own. :) -- Regardless, I never knew blue was difficult with regular LEDs to begin with.

ReeseRiverson

Even these? <a href="https://www.imax.com/news/imax-laser-here" rel="nofollow noopener" target="_blank">https://www.imax.com/news/imax-laser-here</a>

LGR

A site note about laser projectors... they create so much speckle on the screen that IMAX and Dolby Cinema has to install "screen shakers" behind the screen to vibrate the screen within a few millimeters in random patterns to help dissipate the laser speckle. It helps, but does not completely eliminate it. Also - the higher gain of your screen the worse the laser speckle. In fact, most IMAX Digital screens still use Xenon technology to illuminate the projectors, while all Dolby Cinema locations are laser.

Jason McMillon

Indeed, the OLED story could be a topic all its own, especially with the current monopoly on manufacturing and such -- which is why it's not talked about here :)

LGR

Haha, yeah I thought about touching on the overabundance of bright blue LEDs nowadays, but I'm sure the comments will have plenty of anecdotes regarding that

LGR

Thank you!

LGR

Much appreciated!

LGR

Awesome :)

LGR

Thank you, that's what I liked to hear :) Went through several drafts of this script before deciding on one I felt straddled the line of "easy to understand" and "full of technical nitty gritty."

LGR

Blue also proved difficult with OLED technology too. Blue is just a really weird and stubborn colour when it comes down to it! ;D

Kris Asick

Excellent video! I had always wondered why old electronics were limited to red &amp; green. If only I could convince manufacturers that the blue LEDs they use now didn't have to be so blindingly bright.

JennaKay

Great video!

Sina Farhat

Great, keep going! :-)

Ralph

Great video!

The 8-Bit Guy

Wow that was captivating! Awesome work on the research, writing and delivery!

Malbeth

That was an excellent video, thank you.

Clint, this video was perfectly in depth. I just sat with a few of my more experienced EE buddies (it's Friday at our engineering R&amp;D firm, so honestly we're goofing off). The more seasoned fellow among us started with "I bet he won't talk about how white LEDs are just Blue LEDs with more power and yellow added." then you did, and he was impressed, then I sat here thinking, "Oh, I bet he won't even go into how Blue LEDs were a boon in furthering laser tech." and you did. Color me, and my mates impressed. If I was to explain to a layman why Blue LEDs are so vastly important, I don't think I could do much better than this video, at least without becoming so technical that it's hard to grok. This hits the sweet spot so well that I'm going to reference this to others when the topic comes up. Thanks for the high quality content :)

avfusion