Folding screen seems to be high-end, and pricing can easily start at 10,000 yuan, so it has become an innovative fashion in the cell phone industry, and may become mainstream in the future.In the first quarter of 2024, the global growth rate of folding screen cell phone reached 49%, which is the highest peak in the past six quarters.In the second quarter of 2024, China's folding screen cell phone market maintained a triple-digit year-on-year growth rate of 104.6%, and the shipment of folding screen up to 2.57 million units.
Behind the explosive fire of folding screen, flexible plastics can not be faulted
Flexible plastics are one of the lifelines of folding screen phones, and common flexible plastics are mainly the following:
In today's ever-changing technology, smartphones are no longer simple communication tools, they have become works of art that combine cutting-edge technology, extreme design and outstanding performance. Huawei, as a leader in technological innovation, has once again shocked the global technology community with its amazing “tri-fold” design. Behind this visual and technological feast lies a crucial element of black technology - polyimide film (PI film), which is not only the key to Huawei's triple-folding cell phone's flexible folding, but also an important driver of future changes in the shape of smart devices.
Polyimide film: the guardian of flexible displaysPolyimide, a material that sounds full of high-tech, has found a place in many high-end fields due to its excellent resistance to high temperatures, chemical corrosion, high strength, and excellent electrical insulation properties. In the birth of Huawei's tri-folding cell phone, PI film played an indispensable role. It is like the “invisible armor” of the cell phone screen, providing unprecedented flexibility and durability while ensuring ultra-thinness and lightweight, enabling the cell phone screen to be folded freely like paper without damage.
Technological breakthrough: The leap from rigidity to flexibilityTraditional cell phone screens are mostly made of glass or rigid plastic, which are excellent in terms of hardness and clarity, but appear to be inadequate when faced with the demand for folding. Huawei successfully solved this problem by introducing PI film as a key layer of the screen substrate, whose ultra-thinness (down to the micron level) greatly reduces the overall weight of the phone, and whose excellent flexibility ensures that the screen remains flat and stable when the phone is folded over and over again, avoiding creases and greatly extending the service life of the phone.
Innovation and challenges co-exist, however, the application of PI film in the folding screen of cell phones is not an easy task. First of all, how to maintain the display effect and touch sensitivity of the screen while ensuring flexibility is a major challenge. Huawei's R&D team has realized the perfect integration of PI film with the display layer, touch layer and other complex structures through sophisticated manufacturing processes and unique material formulas, ensuring that folded cell phones have a visual experience comparable to that of traditional straight cell phones in the unfolded state. In addition, the durability of the PI film was also a key consideration in the R&D process. After countless folding tests and optimizations, Huawei ultimately ensured that its folded phone could maintain excellent performance and stability even after millions of folds, bringing users an unprecedented experience.
Looking ahead: a new era of flexible display The successful launch of Huawei's triple-folding phone not only marks a major innovation in smartphone form, but also signals a new era of development for flexible display technology. With the continuous progress of PI film and other key material technology and the gradual reduction of costs, we will see more flexible smart devices of different shapes and functions emerge in the future, which will completely change our way of life and work, and open up a more convenient and intelligent future world.
In summary, the importance of polyimide film as the core of black technology behind Huawei's tri-folding cell phone is self-evident. It is not only the embodiment of Huawei's technological innovation strength, but also an important force that drives the entire smart device industry forward. With the continuous progress of science and technology, we have reason to believe that the future of flexible display technology will bring us more surprises and possibilities.