Under normal circumstances, we divide the screen of a mobile phone into an external screen and an internal screen. However, a mobile phone does not only have an external screen and an internal screen. Normally, we can divide the mobile phone screen into Divided into three levels.
The first layer of mobile phone screen is the mobile phone cover screen. The main material is cover glass. Its function is very simple, that is, to protect the OLED screen and touch screen from damage. The second layer of mobile phone screen is a capacitive touch screen. This layer of mobile phone screen has many capacitive detection points that can recognize touch. As long as people touch the screen lightly with their hands, the capacitive detection points will send out electrical signals. The mobile phone will recognize different electrical signals, thereby realizing the presentation of various functions of the mobile phone. The third layer of mobile phone screen is the OLED electronic screen we often mention. The cost and selling price of this screen are relatively high. The reason why we buy very expensive screen protection insurance is mainly to prevent the OLED screen from being broken, which will affect our use experience and cost more money to replace the screen.
Countries such as Japan and South Korea occupy a very stable market in OLED screens. However, many companies have seen the dangers of being stuck, so everyone wants to improve OLED technology as soon as possible. my country's BOE is the screen The leader in the field has already cooperated with Huawei. In addition, the cover glass screen is one of the main protection methods for the screen. Many companies will also try their best to improve the hardness and toughness of the cover glass, thereby largely avoiding the damage to the internal capacitive touch screen and the damage caused by the breakage of the cover glass. Broken OLED screen.
In 2018, the American company Corning used various advanced technologies to produce glass with higher stability. At that time, Corning never imagined that one day it would be defeated by cross-border technology. After any piece of glass overcomes technical constraints, relevant personnel will conduct repeated tests and data measurements on the glass.
It is reported that the sixth-generation Gorilla Glass produced by Corning Company can still maintain ultra-high stability after being thrown from a height of about one meter onto uneven ground. Only after 15 consecutive tests did the glass show any trace of fine lines. Therefore, since this glass has been applied to the field of smartphones, many people have reduced the use of tempered films and protective tools, greatly increasing the protection effect of the inner screen.
Although the sixth-generation Gorilla Glass produced by Corning has become the main material of cover glass preferred by many smart device manufacturers, the sixth-generation Gorilla Glass still has obvious shortcomings, that is, in There is no advantage in later design. For any kind of glass with very high toughness and hardness, most manufacturers will carry out repeated chemical strengthening processes to reduce the damage to the glass. When a piece of chemically strengthened glass encounters a later design, it is difficult for staff to reprocess and test it.
In recent years, many companies have improved the firmness and strength of cover glass through material synthesis methods, making cover glass very cost-effective. For now, many companies use a variety of elements and ceramics to form high-entropy materials. Cover glass made of high-entropy materials breaks the concept and definition of traditional cover glass, and has also passed various mechanical and chemical tests. As we all know, ordinary alloy materials have different compositions, and synthetic materials commonly available on the market are products that are a mixture of two materials. The difference between high-entropy materials and alloy materials is that high-entropy materials use more than four elements and perfectly integrate more than four elements in a certain proportion.
In fact, the manufacturing technology of alloy materials is very limited, and most companies use different methods to achieve the combination of multiple elements. However, after metallic elements become the main components of alloy materials, most alloy materials will become brittle.
If the same situation occurs with high-entropy materials, it will not only mean that high-entropy materials cannot be applied to cover glass, but will even increase the instability and chaos of high-entropy materials. Relevant personnel have adopted various solutions during the production process of high-entropy materials, which ultimately prevents high-entropy materials from becoming too brittle.
Since high-entropy materials perform well in various aspects, scientists from the Chinese Academy of Sciences applied high-entropy materials to the glass production process and developed high-entropy glass. According to the data testing of high-entropy glass conducted by relevant departments, all aspects of high-entropy glass are significantly higher than the sixth-generation gorilla glass produced by Corning. The Chinese Academy of Sciences did not disappoint. As an institute, it actually beat the industry across borders. American companies. If our country's technicians conduct multiple tests to ensure the safety and solidity of high-entropy glass and apply high-entropy glass to the field of smartphones, perhaps we will not need to continue to purchase broken screen insurance.
The hardness of high-entropy glass is 12.58 GPA and the modulus value is 177.9 GPA. The infrared transmittance is as high as 86.8. This is only part of the data measured in an ideal laboratory testing environment, not to mention that high-entropy glass is still in the experimental stage, and relevant scientists have not conducted repeated drop-resistant tests on the glass. High-entropy glass also encounters important problems in the process of making it, that is, the glass forming ability is relatively low, and scientists cannot use traditional melting and condensation technology in the process of making high-entropy glass. In order to prevent the impact of this technology on high-entropy glass during the glass production process, technicians began to use other methods to complete the production of high-entropy glass. The first one was the container-free solidification solution, which greatly improved the forming ability of the glass and also Difficulties in the glass formation process can be avoided.
The invention and use of a material requires people to continuously conduct experiments, and in the process of experiments, people can effectively eliminate technical difficulties in the production process and the shortcomings of the material itself. As we all know, there is a big gap between the laboratory environment and the real-life environment. The laboratory environment is ideal, while the real-life environment is more real. Just because a product performs very well in the laboratory does not mean that the product can quickly adapt to changes in the real environment.
For now, high-entropy glass is still in the process of laboratory research. Although the data on high-entropy glass in the laboratory are very impressive, we cannot rule out the impact of the external environment on high-entropy glass. Effects of entropic glass. The development and testing of a product requires a very long process, and high-entropy glass is closely related to mobile phone screens. This also makes scientific researchers and technical teams more careful to reduce and overcome difficulties in the research process. However, with the help of the Chinese Academy of Sciences, we can put these concerns aside. After all, experts have said that the fall resistance is doubled.