Night, March 26, 1991.

Tomoto Tokyo, Tomoki Kashima's house.

Yu Zixian, Cao Fei, and Chen Mingyong have made arrangements, and they are using their connections to make preliminary contacts with relevant parties, and Yu Zixian will continue to follow up after making initial progress.

Previously, for the matter of the LCD production line, Jiang Yuehua and they had already helped make an appointment with Tomoki Kashima.

Today, Yu Zixian took Wang Qisheng to visit again.

"Mr. Kashima, we meet again! This is Wang Qisheng, deputy director of our Sifang Electron Tube Factory. ”

"I'm Tomoki Kashima, and it's the first time we're meeting, so please bear with me. Tomoki Kashima and Wang Qisheng shook hands cordially.

"Mr. Tomoki Kashima, it's a great honor to visit you. I heard Zixian say that you like to drink and the amount of alcohol is not bad, so we specially brought you two boxes of liquor today, one is our national liquor Moutai, and the other is our Yanjing's most famous local liquor collector's edition Niulanshan Erguotou, I hope you can like it!"

"Oh, thank you very much. ”

"Mr. Kashima, for the last time I left in a hurry, I brought our sincere apologies and sincere greetings from Director Rashobura. And today, Director Wang and I are here to hope that we will continue to talk about the topic last time. ”

"Yu Jun, in fact, I made it very clear to you last time, the most important thing is the issue of money. Later, after talking to you Mr. Luo once, you disappeared, and I always thought you were joking with me. And if you still want to introduce TFT-LCD thin film liquid crystal display technology and production lines with 100 million people this time, then there is no need to continue talking. Because none of them are willing to sell to you! They need $100 million, not 100 million yuan!"

"Mr. Kashima, we are also aware of our own situation, so we have given up on TFT-LCD display technology for the time being, and we have chosen to introduce (S)TN-LCD related technologies and industries. ”

"(S)TN–LCD?is only a small screen for calculators and electronic watches?Yu Sang, are you serious?"

"Yu Sang, for the sake of friends, I think I will emphasize to you again, starting with the TN-LCD LCD screen thirty years ago, it can only be applied to small-sized TN displays, and now this technology has completely lagged behind and is rapidly being phased out...... This was especially true after Suwa Seiko mass-produced a 2-inch TFT–LCD miniature TV display. And did you know that Sharp's 14-inch TFT–LCD display is already in mass production?"

"Besides, for me, continuing the research of TFT liquid crystal display technology is the only thing that can arouse my interest. You're asking me to help you introduce and continue to research TN technology now, it's like letting me eat the '' I once pulled, Yu Sang, I'm not interested...... I'd rather take NEC here to eat and wait for death, or one day after NEC gets involved in the LCD industry, I can still remember that there is an old man here who is crazy about TFT LCD technology......"

Kashima Tomoki's words made Yu Zixian and Wang Qisheng look at each other. Although Tomoki Kashima was a little shocked by his obsession with TFT-LCD technology, continuing to research and produce TN LCD technology is eating?

However, as the former deputy chief engineer of Suwa Seiko's LCD Division, Suwa Seiko has been paying attention to the development of liquid crystal technology. Have a deeper and more thorough understanding of the development or investment of liquid crystal technology.

In addition to the continuous investment of funds, it may be faced with the tortuous progress of technology, and more likely a little luck...... Just like Suwa Seiko.

Suyu Seiko has invested heavily and vigorously developed TFT-LCD technology, but due to capital investment, immature large-size mass production technology, and high costs, Suyu Seiko has lagged behind, and now only Sharp has successfully realized a 14-inch TFT-LCD screen......

To go deeper, we have to start with the development of liquid crystal technology.

The main reason for the problem of service life and reliability is that when a DC voltage is applied to the liquid crystal, the liquid crystal material and electrode will undergo a redox reaction and deteriorate. Although AC power can also be used to drive the LCD, the display performance is poor. It was Sharp that finally solved the problem.

In May 1973, Sharp Company launched the world's first liquid crystal application product, EL-805, a small calculator that uses a liquid crystal display as a display component, by adding ionic impurities to liquid crystal materials to increase their conductivity and obtain good display characteristics by using AC drives.

The liquid crystal display used in Sharp's liquid crystal calculator is a DSM (dynamic scattering mode) liquid crystal produced by RCA Corporation, instead of the current TN (twisted nematic) mode liquid crystal.

However, it is difficult to manufacture LCD TVs with DSM because of the limitations of the number of dot matrix display scan lines of DSM.

The TN model, which emerged in 1971, solved this problem. TN liquid crystals act as shutters, and by moving liquid crystal molecules in an electric field, light can be turned on/off.

At present, almost all LCD screens are using this working principle.

Although the number of scan lines displayed in the dot matrix can be greatly increased in TN mode, the image is distorted when the number of scan lines increases to about 60.

For this problem, it was Hitachi who initially found out the cause and proposed a solution. Hitachi engineers found that the maximum number of scan lines depends on the rising edge of the voltage-transmittance curve.

As a result, organizations began to compete on how to increase the rising edge of the voltage-transmittance curve. This was followed by the STN (Super Twisted Nematic) mode, which increased the twist angle of the liquid crystal from 90 degrees in TN mode to 270 degrees.

In 1982, the Royal Signal and Radar Research Institute (RSRE) invented the STN liquid crystal. In 1985, the Swiss company Brown Boveri (BBC) trial-produced an STN LCD screen with 135 scanning lines.

However, even with the introduction of the STN mode, it is still difficult to make LCD TVs, because STN LCD still has the problem of low contrast and difficult to display fine gray scales.

Breaking through this barrier is the active matrix drive technology that controls each pixel through TFT (thin film field-effect transistor).

Unlike conventional pure matrix drivers, active matrix drivers can control each pixel independently, thus preventing intermodulation distortion due to the influence of surrounding pixels, so that high contrast and fine gray scales can be displayed.

In order to manufacture large-size displays and corresponding TFT LCD TVs, it is necessary to form silicon film technology and color display technology on a large-area glass substrate.

In fact, at that time, amorphous silicon (a-Si), which was developed for solar cells, was already commercialized in terms of silicon film formation technology.

At that time, it was fashionable to say that the oil crisis would lead to an energy crisis, so solar cells were attracting attention as energy cells, and the development of amorphous silicon was very active.

After the University of Dundee in the United Kingdom announced the trial production of amorphous silicon TFT in 1979, companies and research institutions in Europe have released the development results of amorphous silicon TFT driver displays.

In terms of color display technology, Ryuo Uchida of Tohoku University released the juxtaposition addition color mixing method in 1981, which realizes color display through orderly arrangement of three-color filters, that is, color filter method.

Driven by these developments, in 1986, the 3-inch amorphous TFT color LCD TV was launched, and in 1988, the industry began to develop an amorphous TFT color LCD display for 14-inch TVs. In particular, the 14-inch LCD screen launched by Sharp has actually verified the possibility of realizing a large-screen amorphous silicon TFT LCD screen, which has caused many manufacturers to invest in it.

At this time, TFT LCD has begun to move towards the "dream wall-mounted TV", but its comprehensive application started from the color display of the PC.

In 1988, 10.4-inch TFT LCD screens for PC products of IBM and Toshiba appeared.

At present, that is, in 1990, the first generation of 320mm×400mm substrate production line is under construction, and it is expected to be put into operation next year.

Sharp cut four 8.4-inch panels on this first-generation substrate. And it is the large-scale substrate that promotes the development of the liquid crystal industry.

Having said all this, if you say more vividly, in fact, (S)TN-LCD display technology and the corresponding screen are the kind of screen that we commonly used when we were children for digital display of electronic watches, which can only display two color levels, black and white;

Although plasma display technology has also made great progress, it is still unable to resist the dominance of TFT-LCD thin film display technology head-on due to cost issues.

At this time, the mass production of liquid crystal display technology is on the way...... According to the memory in his mind and the introduction of Tomoki Kashima just now, Yu Zixian further confirmed that the current mass production process of TFT-LCD thin film liquid crystal display has been opened, but it will not be put into production until next year, and there will be many process defects at that time, which will inevitably lead to surprisingly low yields......

In my memory, it will not be until 95 years from now that the yield of TFT–LCD screens in mass production will be greatly improved......

The tortuous development of liquid crystal technology has further strengthened the correctness of persuading Luo Shouwu to retreat to the development of TN display technology.

However, at present, if we want to successfully introduce TN display technology and production line, we must convince Tomoki Kashima in front of us.

Convincing him and taking over Suyu Seiko's TN production line with his help was the most suitable and economical way for Yu Zixian to think of the most suitable and economical way for Sifang Tube Factory to obtain TN technology.

"Come on, Mr. Kashima, how about tasting the two sake I brought today......

After Wang Qisheng finished speaking, he casually opened a bottle of Niulanshan Erguotou and Tiegai Moutai.

As soon as Kashima Tomoki heard that there was wine, his face immediately brightened, and he got up and took out a few small goblets from a cabinet...... Then he looked at Wang Qisheng with excitement.

Wang Qisheng poured three and a half cups of Niu Er and three and a half cups of Tiegai Moutai, and the three of them each had one cup in front of them.

"Mr. Kashima, please taste ......"

Kashima first grabbed the half cup on the left side and took a small sip, then raised the half cup on the right side and took another sip: "Good wine......"

"Of course it's good wine. I just want to ask Mr. Kashima to taste, which cup is Niulanshan Erguotou, and which cup is Moutai?"

Seeing Kashima Tomoki's eagerness to try, Wang Qisheng said with interest: "I can remind Mr. Kashima that the total value of this box of Niulanshan Erguotou Liquor does not exceed 100 yuan, which is about half a month's salary, and the total value of this Moutai liquor has reached 2,000 yuan, which is close to the annual salary of our ordinary workers." ”

When Kashima Tomoki heard Wang Qisheng say this, his interest seemed to be stronger, and the value of a year's salary was so high: "Yo Xi, Yo Xi ......"

Although Tomoki Kashima often drinks sake and beer, he also drinks shochu.

Japanese sake, on the other hand, is equivalent to Chinese rice wine, and the alcohol content of shochu ranges from 20 to 60 degrees, which is comparable to Chinese baijiu and European and American whiskey, and there is no other difference in beer.

After tasting the two wines again, Tomoki Kashima said slowly, "This wine is a bit like 'Yokaichi', with a rich aroma and a full and luxurious flavor......

After tasting another glass of sake on the right-hand side, he said, "This sake has the clear flavor and refreshing taste of Takaraki...... This should be what you call Moutai Bar?"

"Haha, Mr. Kashima can taste the ...... again"

Kashima Tomoki's suspicious eyes tasted again: "Mr. Wang, I'm sure ......"

"Which wine is better in Kashima-sama's eyes, and should it be worth the higher price?"

"This one!" Tomoki Kashima pointed to what he thought was the glass of wine that he thought was Moutai.

"Congratulations, Mr. Kashima, you are right, but you are also wrong. ”

"Wine is good wine, but it's a pity which cup is the cheap Niulanshan Erguotou......"

"And which cup you give up is the more valuable Moutai!"

"So, you're wrong. ”

"It's impossible to ......," Tomoki Kashima confirmed to Wang Qisheng again with a serious face.

"That's it, Mr. Tomoki Kashima. ”

"If you had to choose again, would you still make that choice? You can try again......

Kashima Tomoki was extremely serious this time, solemnly picked up two glasses of wine, and tasted it: "I'm sure!"

"Congratulations, Mr. Kashima, your choice hasn't changed! You still chose the lower price of Niulanshan Erguotou is your favorite!"

"Niulanshan Erguotou and Moutai are all good wines that have been inherited in China for more than 300 years......! It's just that because of different market pricing and strategies, they are given different prices, but there are only subtle differences in the historical and cultural traditional wine culture behind them...... The most important thing is that it still doesn't affect your love for him, even if the price of Niulanshan Erguotou is lower......"

"I've said so much, I don't know if Mr. Kashima understands what I mean? Only the right one is the best! Just like you think that Niulanshan Erguotou is your favorite!"

"And we at Sifang Electron Tube Factory think that our TN introduction strategy is the second pot head of Niulanshan in our hearts! Because he is the most suitable for us...... Despite his low prices, his market in China is still huge...... Enough to support us in a few years or ten years to choose the most suitable wine -- TFT–LCD! And, Mr. Kashima, don't we expect to see a TFT–LCD display screen that one day has a world of different performance from a TN-LCD display but has the same price? What will it be like then? Where will Sharp be?"

Hearing Luo Shouwu's words, Kashima Tomoki fell into deep thought......

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