Why do so many old displays/indicators particularly use red lights? Are/Were white diodes harder to create? 233 viewsJanuary 3, 2024 Question90.54K September 10, 2021 0 Comments Why do so many old displays/indicators particularly use red lights? Are/Were white diodes harder to create? In: 372 12 Answers ActiveNewestOldest Anonymous Posted September 10, 2021 0 Comments Things like led displays, so cell phones etc couldn’t exist as we know them today until the blue was made. That’s why you saw such a jump in screen tech since then. You are viewing 1 out of 12 answers, click here to view all answers. Register or Login
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