Rebirth of Northern Technology

A research and development center in the United States.

The development team is developing a handheld measuring instrument.

"How about it, is the backlight done?"

"I'm afraid we can only use miniature fluorescent tubes!"

The engineer shook his head.

"Isn't that fragile?"

"But isn't your screen also made of glass? Isn't it equally fragile?"

"They are already preparing to change the plastic material. The node pressure is all on your side."

The supervisor notified the latest news.

"If you really want to meet the requirements of the drop test, I think it can only be replaced with a red or green LED."

"Is there no other color to choose? This red, unlucky, green is too ugly!"

In Western society, red is the most evil color, just the opposite of the domestic one. The green has been used up. As long as it is green, everyone's first sense is low-end.

"We can use the two of them together!"

The engineer had an idea.

"Really? What color are they together?"

"yellow."

"It's still ugly, isn't it white?"

The leader is still not satisfied.

"No, we don't have a blue light source! The brightness of blue light is too low to match."

"Well then, just use yellow light!"

————

A fighter repair center.

A maintenance man retreated from under the bridge. Holding a thin light tube that was replaced in his hand.

"How many roots is this?" There was a man next to him, holding a shelf, doing record work.

"The eighth one. This is the vulnerable part."

The maintenance man didn't care, shrugged, turned and walked away.

————

middle East

In a luxurious meeting room, several salesmen are desperately promoting their products.

"Mr. Hassan, in order to demonstrate the strength of the noble prince, I suggest that all of your colored lights be replaced with LED lamp beads. This is the latest high-tech product, and others can see that it is very valuable at a glance. Whether it is from the style It's still luxurious, and it can meet your requirements."

"Yes! I want LED lamp beads of various colors, 50,000 each!"

"Okay! Great!"

A group of salespeople cheered and applauded. This is another big deal.

There is a lot of money here, people are stupid, it seems to be the right one.

"How come there are only 100,000?"

When signing, Mr. Hassan felt that his money was being spent less.

"Yes, that's right, two colors, fifty thousand each!"

"Did you not hear me clearly? I want every color!"

————

The blue LED is so noticeable. Mainly because the industry has waited too long, too long.

The main force and promoter of this expectation comes from the industry. Everyone has been waiting for a new generation of light sources.

With the promotion of portable devices and the appearance of handheld devices, the market's demand for mobile light sources is increasing day by day.

Although the price of LED light source is high, the market is already waiting there. As one of the three primary colors, blue, as long as it cannot be achieved, will not be able to achieve everyone's ultimate goal, white!

In later generations, some people even wondered why there are only two colors of red and green in the stock market? I am afraid that the large-scale display at that time had only these two colors of LEDs.

If the blue LED was born thirty years earlier, we might have seen the big curve of three colors.

————

Regarding the preciousness of blue LEDs, there is a personal example.

If you have used a NOKIA mobile phone in the early 21st century, you may still have an impression. The 8250 used to advertise heavily, and its selling point was the blue backlight.

Prior to this, mobile phone screens were all green backlit.

And when was the 8250 introduced to the market?

It's 2001!

Even if we say that from now on, within ten years, blue LEDs will still belong to the category of luxury goods!

————

In later generations, LED has gradually penetrated into the field of lighting. But before the advent of blue LEDs, the lighting industry did not have a place for LEDs. The main reason was that the existing red and green LEDs had low luminous efficiency.

The blue LED theoretically has higher efficiency, which is why everyone is highly expecting this. Since the industrialization of blue LEDs, LED light sources have completely embarked on the human stage.

Since then, the increase in LED brightness has basically followed Moore's Law, and has doubled over time.

Even car headlights, such as ultra-high brightness scenes that only halogen lamps and xenon lamps could achieve before, are occupied by LEDs. And this trend is far from over, and it continues to grow.

It is this expectation and the unanimous expectation that led to the extraordinary attention given to blue LEDs in history. It also made it, as a process improvement, won the Nobel Prize. Rebirth of Northland Technology latest chapter address: https://www.readwn.com/book/128175.htmlRebirth of Beiguo Technology Full Text Reading Address: https://www.readwn.com/read/128175/Rebirth of Northland Technology txt download address: https://www.readwn.com/down/128175.htmlRebirth of Northland Technology Mobile Reading: https://m.readwn.com/read/128175/In order to facilitate the next reading, you can click "Favorites" below to record this reading (Chapter 253 Thirty Years Waiting), and you can see it when you open the bookshelf next time! If you like "Rebirth of Northland Technology", please recommend this book to your friends (QQ, blog, WeChat, etc.), thank you support! (www.readwn.com)