As early as 2013, Samsung Electronics demonstrated flexible and foldable smart phone screens, and curved OLED displays have already been mass-produced. Although many manufacturers have already demonstrated foldable OLED display technology, they have not seen Terminal mobile phone brand mass production plan. However, with the flexible flexible AMOLED display screen quickly introduced into the high-end mobile phone market, the innovative appearance of curved display helps to increase the profit of the product. Therefore, panel manufacturers provide The willingness to differentiate products is also increasing. Xie Qinyi, general manager of IHS Display Research, pointed out that the current batch of smart phones with foldable AMOLED screens is expected to be launched by the end of 2018.
The foldable display can be folded 180 degrees and has many different folding patterns, such as G- or Z-shaped two-dimensional folding. However, how the folding does not damage the internal components, and how to avoid creases and deformations will It is a big technical challenge. Motorola was granted the US Patent and Trademark Office patent on June 14, 2018, and it is called "Method to Recover Permanent Set in A Foldable Display". An important patent that allows OLEDs to bend frequently. It can be seen that Motorola is trying to build a more durable foldable smartphone.
On the other hand, China BOE has also developed a 7.56-inch 2048x1536 ppi foldable AMOLED display sample with a bending radius of 5mm and can be bent 100,000 times without breaking. BOE is expected to supply Huawei for this year. At the same time, AUO has also developed a 5-inch 1280x720 ppi AMOLED display that can be bent in both directions, with a bending radius of 4mm and can bend more than 1.5 million times.
At present, the smart phone brand attaches great importance to the expansion of the screen size and proportion, hoping to provide the largest size screen of the mobile phone. The foldable display will probably combine the portable features of the smart phone and the large screen advantage of the tablet computer. However, due to The production process of this technology is very complicated, so the price may be too high, which is a major consideration when consumers buy.