/ Asahi/Guangzhou, March 25, 2022 -- In the era of mobile Internet, it has become a normal practice to keep a mobile phone on your hand, but accidents are inevitable. If you drop your mobile phone, the screen may explode. With the popularity of 3D screen and OLED screen, changing the screen is not cheap, ranging from several hundred yuan to several thousand yuan. As a result, the industry has been struggling to find a protective material for smartphone display panels, upgrading from regular sodium calcium to aluminum-silicon glass and lithium aluminum-silicon glass, and the results have not been so satisfactory.
At this time, a kind of material called nanocrystalline glass came out of the air. It is said that this material is thin and hard enough, and it is quite resistant to falling and falling, with strong texture. It can almost be called the current very advanced smart phone cover plate material.
Last year, the nanocrystalline glass material cover plate supplied by domestic glass manufacturer Chongqing Xinjing Special Glass Co., LTD. (hereinafter referred to as Xinjing Special Glass) was first used in Huawei P50 collection edition, and this year became the standard part of the newly released P50 Pro regular edition.
Nanocrystalline glass has billions of nanocrystals, the structure is very stable, when the mobile phone falls, the ordinary mobile phone screen will be hit by the ground to form micro cracks, micro cracks caused by the diffusion of mobile phone cover glass starburst, and the mobile phone screen with nanocrystalline will block the diffusion of micro cracks, truly achieve the non-destructive fall.
To test this claim, an experimental video was made. The video shows that the screen was intact when the phone fell to the marble floor at a height of 2.5 meters, and remained intact when the fall reached a height of 4 meters. The anti-fall performance of the cover plate material is far superior to the conventional secondary reinforced glass material, which is directly increased to 5 times.
How do you do it without damage from a fall?
Microcrystalline glass refers to the basic glass with crystal nucleus agent (or without crystal nucleus agent) of a specific composition, heat treatment under a certain temperature system, in the glass uniformly and orderly precipitation of a large number of tiny crystals, the size of the microcrystal is generally between tens of nanometers to tens of microns, forming a dense microcrystalline phase and glass phase polyphase complex. Micrystalline glass has the dual characteristics of glass and ceramic. The internal crystals are arranged in an orderly manner, so micrystalline glass is more transparent than ceramic and more ductile than glass. However, the arrangement of molecules inside glass is disordered, which is also one of the reasons why glass is fragile.
In fact, microcrystalline glass is actually a glass modification process. Metal oxide grains are added as crystal nuclei in the glass production process, and the ceramic crystals in the glass matrix are crystallized through the high-temperature crystallization step to change the proportion of the amorphous structure of the glass state.
But this process is not easy, because ceramic crystals themselves are not transparent, so the actual processing is extremely difficult. For example, how to embody the hardness of ceramics in glass while maintaining the optical permeability of the material became a key problem.
After long-term research and development, Xinjingte Glass adopts special technology to produce glass-ceramics, and the product performance index reaches the international advanced level. The product will be officially mass-produced in 2020 and applied to Huawei P50 PRO series.
Xinjingte Glass has applied for more than 180 patents, including 135 invention patents; All core patents have been applied for international patents through PCT, and it has a full set of independent intellectual property rights of special glass, and passed the certification of intellectual property standards in 2020.
The large-scale application of Xinjing microcrystalline glass, in a real sense, unshackles the set of mobile phones, makes the aesthetic feeling and texture of advanced ID process design bold display, greatly improves the user experience, will lead the trend in the future for a period of time, create a new era of mobile phone fall protection.
