As we all know, the most important equipment in chip production is mask aligner. Evaporation equipment is the most important equipment in the production of organic light-emitting diode displays. This equipment is used to complete the most important process of OLED screen: evaporation. At present, the highest quality OLED screen can only be evaporated by the evaporation machine produced by Canon Tokki Company in Japan. You should know that when Canon Tokki company developed the evaporation process of organic light-emitting diodes, the yield was too low because of the complicated process. At the beginning, dozens of manufacturers who invested in it withdrew one after another and continued to develop LCD screens. As a result, Canon Tokki almost went bankrupt. At that time, only Samsung was optimistic about the prospect of OLED screens in the field of mobile phones, and continued to place orders to help Canon Tokki continue its life. Finally, when the process of the evaporator is improved, the output of the organic light-emitting diode network is increased and the cost is reduced, which can be popularized on a large scale. At this time, Samsung became the dominant mobile phone screen with its organic light-emitting diode screen.
Now, it's like having to buy mask aligner from AMSL to produce the most advanced chips. If you want to produce the highest quality OLED screen, you must buy Canon Tokki's evaporator. By virtue of its special relationship with Canon Tokki, Samsung has been monopolizing the production of all the evaporation machines of Canon Tokki, so that it can always monopolize the position of the global OLED screen leader. It was not until recently that Canon Tokki expanded its production capacity that other companies could buy Canon Tokki's evaporators. But even if you buy the most advanced evaporation machine, you still need to develop the production process from scratch, gradually improve the yield and production capacity, and you have to buy more Canon Tokki evaporation machines to achieve sufficient production capacity to challenge Samsung.
In the process of evaporation, in addition to the evaporation machine, a very important small component: evaporation mask plate is needed. It is this widget that directly determines the resolution of the final panel and the output of the OLED panel. Because the holes on this mask plate are the pixels corresponding to evaporation on the screen, the smaller the holes, the higher the density, and the higher the resolution of the OLED panel. In order to produce QHD resolution organic light-emitting diode screen, it is necessary to use a mask plate with accuracy of 10 ~ 20 microns. In the market, only one Japanese company, Dainippon Printing, can produce this kind of vapor deposition mask with the highest accuracy. However, the output of this company was also monopolized by Samsung before. Therefore, other competitors simply cannot produce QHD resolution OLED screens. It is with this highest precision evaporation mask that Samsung can produce the highest resolution OLED screen in the world.
And why can only one company produce this high-precision evaporation mask? This involves a special metal raw material: super invar board. Because the mask plate is easy to deform in the high temperature environment of evaporation, only the super-invar plate with thermal expansion coefficient close to 0 can produce the high-precision evaporation mask plate that meets the requirements. Unfortunately, this special material can only be produced by Hitachi Metal Company of Japan. Hitachi Metal also signed an exclusive supply agreement with the same Samsung. Therefore, Samsung can produce the highest definition OLED screen by monopolizing the most critical Japanese company's equipment, parts and materials needed to produce OLED.
From this, we can get a glimpse of Japan's profound technical accumulation and R&D strength in high-precision instrument and equipment manufacturing and material science. Perhaps now Japan has withdrawn from the market competition of many consumer goods, such as household appliances. However, Japan has made great efforts in more cutting-edge and cutting-edge fields such as precision instrument and equipment manufacturing and material science. And with the most advanced equipment and materials, we have mastered the lifeblood of downstream enterprises. Comparatively speaking, our enterprises in China must catch up in all directions so as not to be caught up by others all the time. What do you think of this? Please leave a message for discussion.