The sun was shining brightly and the wind was blowing through the trees. They were young at that time.
“The finished LCD panel, anisotropic conductive adhesive, driver IC, and flexible circuit board (PCB) are pressed together using a machine, and then assembled together with the backlight, light source, and iron frame to create the finished product.
This is the manufacturing process of LCD screens. Although it has been abandoned by major mobile phone manufacturers, it still occupies a higher share than OLED in other fields.
Compared with LCD screens, OLED screens have the characteristics of low power consumption, fast response, wide viewing angle, high contrast, light weight, ultra-thin and bendable.
Among them, the three characteristics of strong plasticity, thinness and fast response are deeply bound to mobile phones.
Although it is somewhat harmful to the eyes at low frequencies, the flaws are not concealed. For example, the thin and light characteristics allow mobile phone manufacturers to stuff more components into the small space of the mobile phone, such as screen fingerprints and more camera components.
Therefore, 16 years later, it has been widely used by major mobile phone manufacturers in their mid-to-high-end smartphones.
Everyone sitting here has been doing semiconductor research and development for so long, but do you know the production line layout and global share of OLED display panels currently and next year? "
Gu Qing glanced at the silent people present and sighed slightly in his heart, but he also understood.
I just said I was going to beat the dog, but when I thought about how the dog had grown stronger after eating fat for so many years, he didn't say anything at this time, obviously because he was worried about his status as a big boss and didn't dare to pour cold water on him.
"Knowing yourself and the enemy is the only way you can win every battle. Some of you understand it and some of you don't. So look at the screen next. This is the battlefield environment displayed in Kyushu in the future. There are enemies and friends."
Gu Qing said with a serious expression: "Korean Star Display has several factories including Tangjing and Cheonan in Asan, Korea. They have two technologies: hard screen and flexible. The total production capacity exceeds 300K/month. Currently, it accounts for 10% of the world's mid-to-high-end OLED displays. Seventy production capacity.
And there is news that Han Xing plans to make a new large-scale investment in quantum dot display technology, with an investment scale of more than 20 trillion won.
Then there is LG Display. In fact, it is the LG Display company in Korea. The total production capacity is about 36K/month. It is said that LG’s new factory in Guangzhou, our country, will start mass production at the end of the year. By then, its share may be promote.
Then there is Beijing North Display, which we are familiar with. It has a factory in Chengdu, with a current production capacity of about 48K/month. It mainly supplies companies such as Xiawei. Although the production capacity of mid-to-high-end quality screens is not high and the yield rate is low, it is finally Went to the forefront of industry.
After Beijing North, there are also many of our allies. Companies such as Cigna, Martin, and Huaguang are all making OLED. Although their share is very low, they are starting from scratch after all. "
Speaking of this, Gu Qing sighed: "From scratch, our domestically produced products have actually been overcoming obstacles, but they lack truly independent domestic industrial lines, precise manufacturing techniques, and high-purity raw materials.
"The Romance of Fairy Wood"
So this time, I plan to start making high-end products directly and provide mid-range technical support to friends and businessmen.
When we were doing semiconductor research and development before, a technology product we inadvertently developed can be used. "
Li You listened the most attentively. When Gu Qing said this, his mind instantly recalled some of the results obtained by studying and developing day and night for more than half a year.
The specific name of OLED is: organic light-emitting diode (ht-Emitting Diode, OLED), also known as organic electric laser display and organic light-emitting semiconductor.
"So is it LTPO?"
Gu Qing's hearing is now very keen, so he smiled and said in the direction of Li You: "Yes, it is LTPO, which is also a technology currently being developed by Korean stars and LG.
This is one of the products of brainstorming during the early stage of technology derivation in our semiconductor department laboratory, but now it can be used in this new display screen.
I know that some of you R&D personnel who come later are not clear about it, so I will briefly introduce LTPO technology.
First of all, we need to understand something called a thin film transistor. This is a voltage-type switch drive backplane technology used for screen pixel display control. It is needed for both LCD panels and OLED panels. After all, without it, the display screen would be useless. No pixels can be displayed.
Currently, there are two relatively mature thin film transistors in the small-size OLED panel market, namely low-temperature polysilicon and indium gallium zinc oxide.
It is worth mentioning that the production capacity of these two things is in the hands of Neon Company, so Hanxing, Beijing Northern and other companies that make OLED displays have to rely on Neon Company’s suppliers.
LTPO is also called low-temperature polycrystalline oxide. It is a thin film transistor technology product that combines low-temperature polysilicon and indium gallium zinc oxide.
In other words, we can use LTPO technology to simultaneously bypass Neon Company's raw material restrictions and Korean Star Company's production process patents and high-end production equipment restrictions. "
The logic of Gu Qing's language was very clear, and the newcomers who were still confused at first quickly understood it. This may be the reason why the big boss dared to have a try with Han Xing.
Of course, no matter whether they are newcomers or old people, they don't know that the direction they took when learning R&D and the "temporarily useless" technology during the brainstorming meeting were all the results of Gu Qing's deliberate control.
But this did not affect their inner excitement at this time.
Being able to get rid of the constraints of Neon Company and Goryeo Company in one fell swoop is simply amazing!
Gu Qing saw that everyone's emotions were aroused, and then he slowly said: "Actually, this technology can only be obtained now. In addition to the safe implementation of production, maybe you don't know that the ordinary production of hydrogen fluoride and hydrofluoric acid as raw materials does not Not difficult.
For example, the main raw material of hydrofluoric acid is fluorite, and my country's proven reserves of fluorite rank first in the world with South Africa, so it is said to have unique advantages.
But the hydrofluoric acid used in semiconductor production is not ordinary hydrofluoric acid, it is ultra-clean and high-purity electronic-grade hydrofluoric acid. Ordinary industrial-grade hydrofluoric acid is fine for cleaning glass, but when used to clean semiconductors, it basically only produces waste products. Because ordinary industrial-grade hydrofluoric acid contains a large number of impurities, these impurities are fatal to chip production.
As for high-purity hydrogen fluoride, the purity produced in Japan is 99.9999999999% or even higher. The highest purity that our country's manufacturers can currently produce is about ten times lower than this purity, and this is only one of the indicators. In addition, there are also control over particle size and particle size. The numbers and other indicators are quite different.
We can now hope to mass-produce LTPO technology in a short period of time, relying on the optimization of the company's production equipment, the technical strength and accuracy of the robotic arm, and the mature technical reserves of the semiconductor special production workshop.
As for the screen driver chip, Xia Xin Technology can use domestic lithography machines to manufacture it without worrying about being stuck. "
