Rebirth of Northern Technology

September 1991

Leningrad, through a vote in the city, decided to restore the old name St. Petersburg.

————

8 p.m.

The photoelectric laboratory on the fourth floor of the electronics building.

Since the LED laboratory and production line moved away, this once noisy laboratory has gradually quieted down.

But these days, the laboratory has become lively again, and even at night, it is still brightly lit. Especially today, the room is full of laughter.

"This is the LCD monitor you are talking about? Is it so easy to make?"

A young man with pimples fiddled with a row of small switches on the desktop from time to time. With his fingers, a small glass plate on the table kept changing colors, red, green, blue, green, yellow, and white.

"What's easy, you didn't look at us, you have been busy for more than two months!"

Yan Liang grabbed the control switch from You Tian's hand. This is a sample of TFT-LCD, made by hand, small size, low resolution. But although the sparrow is small and has all the internal organs, all the processes that should be passed have been walked through in the laboratory.

"What's two months? You don't know, I took a semester on my last project."

In the past year, Youtian has been spinning around in fiber optic inspection. He has a specialization in the field of art. In the past year, he has published two more papers, which can be regarded as fruitful.

With the passage of time, with the joint participation of global scientific researchers, optical fiber inspection has made rapid progress, and both theoretical models and ideological systems have quickly matured.

From the perspective of a discipline, this is certainly a good thing. But for scientific researchers, it's a different matter.

The subject matter related to optical fiber inspection has been exhausted, and the chance of meeting a good subject and writing a good paper is getting slimmer.

Even Youtian, who is famous for his tense character, has the mind to give up. There is really nothing you can do. No matter what you think about it, when you check the information, someone is doing it, or someone has done it.

—————

"How about? This thing is interesting, there is nothing on your side anyway, come over and help if you have time."

On a test bench next to him, Cheng Yongxing put down the soldering iron in his hand and turned his body around. You Tian was called by him.

"Really? How can I help?"

"There's a lot of help, as you can see, there is a shortage of manpower here. Right now, the two of us are working on it."

Yan Liang also persuaded again. Cheng Yongxing still has company affairs. Most of the time, he and Ye Jing were the only people here. This laboratory often appears extremely empty.

"By the way, when I came in, it felt strange. Why are there so few people? Didn't your Boy Scouts expand their enrollment?"

Boy Scouts are now well-known. As a scientific research organization with undergraduates as the main body, it has become a banner for students to engage in scientific research. Journalists from different sources often come to interview.

In this group, not only students from the 89-level testing department are participating. Some foreign departments, as well as students in lower grades, are also slowly flooding them.

Although this group of students can't actually do much, they can only do some statistical work, but it is a very good news material that is very popular with organizations at all levels. Whenever a leader comes to visit, the Boy Scouts is a key project to introduce.

"This is another thing I want to tell you. This is a confidential project. Don't talk about everything you see here. If you can't do this, then I don't dare to keep you."

Cheng Yongxing simply put aside his work and walked over. The LCD project is currently short of manpower, but it is not ordinary people who are lacking, but credible people.

"There is no problem with this. Besides, no one asked me!"

Youtian is a relatively lonely person. Because he ran with the optical fiber laboratory, he was alienated from his classmates in his major.

"By the way, why is the project called Project Zero?"

"Isn't zero the starting point for everything?"

"How is 0 the starting point? 1 is it!"

Several people retorted in unison. Zero is the starting point, and there is only one kind of person who sees it this way. Such people do not exist yet.

But this reminds Cheng Yongxing. Need a name that everyone can understand.

————

Several people talked and laughed for a while, and then returned to the current experiment.

"What are you going to do next?"

Ye Jing hadn't spoken just now, and she and You Tian were not very familiar. Most of the boys in the Boy Scouts are boys, and as the only remaining girl, she is the only alternative.

"That's it for this stage. The next step is to turn to technology and equipment. Principle verification, these tasks are sufficient."

Cheng Yongxing expressed satisfaction with the current results.

"Really? That's the end? Is it all just showing monochrome?"

Several people in the room were surprised by the result. Everyone is a person who has experienced large LED screens. Although this small sample is small and has a low resolution, it should be connected to a signal generator to display a pattern or something.

"If the LCD wants to display patterns, it needs an external dedicated drive chip and drive circuit. I don't have this kind of chip, so I had to do this."

Cheng Yongxing explained to several companions. LCD and LED large screens are different. The driving chip and circuit of the large LED screen can adopt the traditional circuit overlap method. It has no size limit, just drop in with money.

The driver chip provided by the Beauty Corps can drive module-level LEDs, which is a great improvement.

Each LED module has a few chips, and the circuit is much simplified compared to the previous separate circuit. But as many LED modules as there are, at least as many chips are needed. For example, a large LED screen with standard resolution requires 40x30 and a total of 1200 modules.

More than a thousand chips cannot be squeezed into the LCD module in any case. The LCD dedicated driver chip has become a hurdle that cannot be bypassed.

————

"Driving circuit? Isn't this Sister Luo's business? Go find him!"

The cafeteria itself is a public place, and many people have seen that special scene. Everyone is waiting to see the excitement. Especially the young people of the Boy Scouts, one is to join in the fun, the other is optimistic about their success.

"No, this stage is just to verify the concept, no drive circuit is needed."

Luo Ningwei is a very strong person, and has a kind of unstoppable energy to do things.

Cheng Yongxing didn't know how to deal with this situation. Every time he encountered such a situation, he had to hide this way. He doesn't even dare to go to the cafeteria now. He picked up the cooking skills he hadn't practiced for a long time.

But whether it is a large LED screen or an LCD, the auxiliary drive circuit is a hurdle that cannot be circumvented.

"Then we are all right?"

Ye Jing was a little surprised. Last semester, when Cheng Yongxing called two people together, he said a whole lot of things. What can’t be published anymore, what’s kept secret, and the result is over so soon.

"This is also our good luck, and I didn't expect that this stage will be so smooth."

In fact, this is also normal. The difficulty of LCD lies in industrial production. Its concept was verified thirty years ago.

————

"Why do I feel strange, as if you have done these experiments before?"

Yan Liang's feeling has long been there. The experimental steps involved in LCD, how to say, are very strange steps. For example, orientation film coating, rubbing orientation, etc.

But Cheng Yongxing led two people and did it step by step.

Although there have been repetitions during the experiment, everyone just keeps redoing them, and these designed experimental steps have not been changed from beginning to end!

"Really? Then I know. You must have done something secretly again, just don't take it out. It's the same as a blue LED, right!"

Youtian is a big-hearted lord, dare to say anything. In the eyes of outsiders, the blue LED was made in the last few days. But among these familiar friends, they don't think so.

After such a long period of edification, everyone has long understood what LEDs are all about. The brightness of the LED may be gradually increased, but there is absolutely no reason for it to appear suddenly. Cheng Yongxing’s sample is 40mdb when he sells it. how can that be. It's just that his classmates gave him face and were unwilling to expose lies.

"Keep your voice down! You can't just talk nonsense to anyone."

Ye Jing hurriedly stopped the nonsense of acne. As the only remaining girl in the first generation of Boy Scouts, her status in the small team is still quite high.

"What do you look at me for?"

Cheng Yongxing found several people staring at him.

"Just pretend to be with us!"

Yan Liang has no intention to continue this topic, but irony is indispensable.

The LCD sample in his hand is mainly the result of his battle with Ye Jing, so he also has a certain say.

Practice makes perfect. In the past six months or so, Cheng Yongxing has gradually lost his experience when he conducts experiments himself. Therefore, his test method is still weaker than Yan Liang and others who have not been distracted.

"That's it for today. We will take a two-day break. We will wait for news from me for the next stage of work."

"Okay! I can finally rest!"

Ye Jing cheered a little. After entering the junior year, the pressure on the course eased a lot. The content of the professional courses is a piece of cake for a student who has been doing experiments and doing projects for two years.

So she can devote more time to participate in the project.

But for several weeks, working until 10 o'clock every day, she was also a little tired. 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 the "favorite" below to record the reading record of this time (Chapter 354 LCD sample), 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)