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You can argue that the blue led has done more to improve things than the original. Blue was the missing led color for many years, meaning that low cost/power l
by jdonaldson 12y ago
You can argue that the blue led has done more to improve things than the original. Blue was the missing led color for many years, meaning that low cost/power light bulbs and displays were not possible. The original led was used primarily for indicator lights, while the blue led enables a great leap forward in the way we provide lighting and display surfaces.
Also, the problem/solution for blue leds was way more interesting and challenging imho.
- scott_karana 12y agoThe article points out some other big uses of original red LEDs: fibre optic networks, and CD/DVDs.
- jdonaldson 12y agoThat's very true. Those were both huge. One more small counterpoint... DWM in fiber optic networks was given a huge boost by blue leds. The increase in bandwidth has led to multimedia streaming services that have made conventional optical disks largely outdated for consumer use... even the more recent blu ray formats designed to take advantage of the blue leds are not as popular any more.