They have blue.
From Tedium Magazine, October 3:
RGB Revolution
RGB lighting is designed to stick out like a sore thumb—and it especially does in a courtroom, it turns out.
When we took the steps we needed to develop RGB lighting, the red and the green light-emitting diodes were easier to develop than the blue ones.
We had green LEDs in the 1950s, and red LEDs by 1962. But blue diodes were hard to develop, and we did not have a truly usable one until 1993, at which point we were able to develop white LEDs with such brightness that they could be used in place of traditional light bulbs. It took just three decades for the white LEDs to replace incandescent light bulbs on store shelves entirely.
RGB lighting has gained a long-fascinating image as an ongoing trend in popular culture, associated with gamers in particular.
This week, RGB lighting’s reputation found itself in the crosshairs of the mainstream news because of a decision by Alina Habba, a lawyer for former president Donald Trump, to bring an Asus ROG Strix laptop with her to court. Now, to be clear, the machine is a suitable beast for computing tasks—according to Kotaku, it has an RTX 2070 Super GPU and an Intel i7 processor—but its design stands out in certain settings, especially if you fail to turn off the RGB lighting on the keyboard and on the back of the display, as Habba did.
(I’m not implying anything here, but if your goal is to subtly disrespect the judge by having colorful flashing lights in their field of view, it more than does the job. Blue light, after all, is very distracting.)...
....MUCH MORE
And from October 7, 2014:Creators Of Blue-Light LEDs Win Nobel Prize In Physics
In a May 2008 post, "LEDs: Venture capitalists see the light (CREE)" I mentioned how I came to know LED's:
About ten years ago the best stockpicker I know told me he was looking at CREE. The pitch was "They have 'blue'". I didn't pay much attention, the Nasdaq was starting it's blow-off run, from around 1500 to 5048 in 18 months.Blue is important.
Cree went from $3 to $93....
These days CREE is back around $33.
From cnet:
Efficient, useful blue-light LED draws Nobel Prize in physics
Three researchers helped revolutionize lighting with vastly better energy efficiency and brightness. The light-emitting diodes also are used in data storage, TVs, and smartphones.....
Well, CREE changed their name a couple years ago, the patents have long expired and the stock (new symbol: WOLF) is at $32.53 after hitting ~$141.87 around the time of the name-change.
