Chapter 199 Kyushu Display New Technology

The scorching sun in the world happened just right, and the wind passed through the forest. They were young at that time.

"The LCD liquid crystal finished panel, anisotropic conductive adhesive, driver IC, and flexible circuit board PCB circuit board are pressed together by the machine, and then assembled with the backlight panel, light source, and iron frame to produce the finished product.

This is the manufacturing process of LCD screens. Although it has been abandoned by major mobile phone manufacturers, it still has 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 hurts the eyes somewhat at low frequencies, the flaws are not hidden. For example, the thin and light features allow mobile phone manufacturers to pack more components into the small space of the mobile phone, such as screen fingerprints and more camera components.

So after 16 years, 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 current and next year's production line layout and global share of OLED display panels? "

Gu Qing glanced at the silent people present and sighed slightly, but he also understood.

He just said that he was going to beat the dog, but when he thought that the dog had grown stronger after eating fat for so many years, he didn't speak at this time, obviously because he was afraid of being a big boss and didn't dare to pour cold water on him.

"Know yourself and know your enemy, and you can fight a hundred battles without danger. Some of you understand and some don't. So look at the screen next. This is the battlefield environment displayed in our Kyushu in the future. There are enemies and friends."

Gu Qing said with a serious expression: "Hanxing Display has several factories in Asan, Koryo, such as Tangjing and Cheonan. They have two technologies: hard screen and flexible. Seventy capacity.

And it is reported that Hanxing plans to make a new round of large-scale investment in quantum dot display technology, with an investment scale of more than 20 trillion won.

Afterwards, LGD showed LG Display. In fact, it is LG Display in Korea. promote.

After that, we are familiar with Beijing North Display, which has a factory in Rongcheng. The current production capacity is about 48K/month, and it mainly supplies companies such as Xiawei. to the forefront of the industry.

After Beijing North, there are also many of our allies. Companies such as Cigna, Matian, and Huaguang are all making OLEDs. Although their share is very low, they have grown from scratch after all. "

Speaking of this, Gu Qing sighed: "From scratch, our localized products have actually been overcoming obstacles, but they lack a truly independent domestic production line, precise manufacturing techniques, and high-purity raw materials.

So this time, I plan to start making high-end products directly, and provide mid-range technical support to friends.

When we were in semiconductor research and development before, a technical product that we accidentally developed could be used. "

Li You listened most carefully. When Gu Qing said this, his mind instantly recalled some of the achievements he had obtained from studying and developing day and night for the past six months.

The specific name of OLED is: Organic Light-Emitting Diode (OLED), also known as organic electro-laser display, organic light-emitting semiconductor.

"So it's LTPO?"

Gu Qing's hearing is very keen now, so he smiled and said to Li You's direction: "Yes, it is LTPO, and it is also the technology that Hanxing and LG are developing now.

This is one of the products of brainstorming during the early technical derivation in our semiconductor department laboratory, but it happens to be used in this new display at the moment.

I know that some of your R\u0026D personnel who came later are not clear, so I will briefly introduce LTPO technology.

First of all, we need to know something called a thin film transistor, which is a voltage-type switch-driven backplane technology used for display control of screen pixels. Both LCD panels and OLED panels need to be used. After all, without it, the display screen will be There are no pixels to display.

At present, 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, so Hanxing, Beijing North and other companies that make OLED displays must rely on Neon's suppliers.

LTPO is also called low-temperature polycrystalline oxide, which 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 the raw material restrictions of Neon Company and the production process patents and high-end production equipment restrictions of Hanxing Company. "

The logic of Gu Qing's language is very clear, and the newcomers who were still at a loss quickly understood it. This may be the confidence that the big boss dared to meet Han Xing.

Of course, no matter whether they are newcomers or old people, they don't know the direction of their research and development, and the "temporarily useless" technology during the brainstorming meeting is the result of Gu Qing's deliberate control.

But this did not affect their inner excitement at this time.

To be able to solve the constraints of the two companies of Neon Company and Korea in one fell swoop is simply amazing!

Seeing that everyone's emotions were mobilized, Gu Qing said slowly: "Actually, this technology can only be produced now. And it is safe to implement production. Maybe you don't know that the ordinary production of hydrogen fluoride and hydrofluoric acid as raw materials is not not difficult.

For example, hydrofluoric acid, whose main raw material is fluorite, and the proven reserves of fluorite in my country rank first in the world with South Africa, which is said to have a unique advantage.

However, the hydrofluoric acid used in semiconductor production is not ordinary hydrofluoric acid, but ultra-clean and high-purity electronic grade hydrofluoric acid. Ordinary industrial-grade hydrofluoric acid is okay for washing glass, but it can basically only produce waste products when used to wash semiconductors. Because ordinary industrial grade hydrofluoric acid contains a lot 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 manufacturers in our country can currently produce is about ten times lower than this purity, and this is just one of the indicators. 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 special semiconductor production workshop.

As for the driver chip of the screen, Xiaxin Technology can use the domestic lithography machine to manufacture it without worrying about being stuck. "

PS: Therefore, as an assistant in the front, it is for the follow-up finished product.

If you want to control everything and produce it independently, investing in it is not something that can be done in the first tens of thousands of words in other novels...