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Application prospect of silver nanowires in foldable products

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Application prospect of silver nanowires in foldable products

  • 2019-04-19
Silver Nanowires have the advantages of high conductivity, low cost, coating and excellent light transmission. It has a smaller bending radius and a smaller resistance change rate when bending, so it is more advantageous to be used in equipment with curved surface display.

Silver Nanowires is a conductive material, silver nanowires ink is coated on plastic or glass substrate, and then use laser lithography technology, can be made into a transparent conductive film with silver nanowires conductive network pattern.

With the development of foldable products, the traditional ITO conductive film first exposes its own shortcomings. The ITO layer is relatively fragile and lacks flexibility, so there is no way to make foldable panels, and the material is expensive.

In the new conductive film that can replace ITO, the silver nanowire has the advantages of high conductivity, low cost and coating.Compared with the metal mesh film, it has a smaller bending radius and a smaller resistance change rate during bending, which is more advantageous for the equipment with curved surface display.

silver nanowires, AGNWs


Flexible folding touch screen is also a strategic layout of nano silver, this year we will promote nano silver technology, the initial lock large size products and portable devices.In the following, it may even replace the existing indium tin oxide (ITO) touch sensing thin film technology and become the mainstream of touch panel applications.

Apart from silver nanowires, the touch technology suitable for folding mobile phones also has metal mesh. However, the application of metal mesh touch technology in the field of small size mobile phones will obscure the luminous point of OLED and affect the visual effect, so it is only suitable for large size products. Silver Nanowires, however, are small in diameter and don't have the problem of blotting out OLED light points, making them better suited than metal mesh technology for small, foldable phones.

Compared with other alternatives, nanosilver wire has unique advantages in the process:
1. Simple production process and high yield.Because the wire width is small, the conductive film made of silver wire technology can achieve higher light transmittance.
2. The nanosilver wire film has a small bending radius and a small resistance change rate during bending, which can be better applied to devices with curved surface display, such as smart watches and bracelets.
3. Excellent electrical conductivity, light transmission and bending resistance.
4. Due to the large length diameter ratio effect of silver nanowires, it also has prominent advantages in the application of conductive adhesives and heat-conducting adhesives.

Nanosilver wires are now seen as the main material for flexible oleds of the future.
Some people may ask, flexible OLED hype up to now, all the links in the industrial chain, such as the substrate, module, screen film, etc., have been dug to the ground, why only ignore the silver nanowire?
The question makes sense. So far, samsung, huawei and other manufacturers that have announced that they will release foldable screen phones have not revealed that they are using nano-silver wire materials.So are nanosilver wires unpopular?
Here's a story from five years ago.In 2014, foreign media reported that apple's Iwatch officially adopted TPK tchen's nanometer silver wire film technology, and apple's move can be seen as an endorsement of nanometer silver wire.
On the afternoon of February 19, the world intellectual property organization (WIPO) showed the latest patent of Apple inc. for the Apple Watch, which uses a flexible screen to make the watch's dial and band serve as the display screen.

In addition, after samsung and huawei released folding screen phones one after another, apple has officially joined the flexible screen war. Apple has updated a patent that depicts a foldable iPhone.

Apple's two recent moves suggest that it is more likely to hold back a big idea than samsung and huawei when it comes to foldable phones. Imagine that five years ago, apple had used nanowires. Five years from now, when apple officially joins the fold screen wars, will its killer feature be nanosilver wires?

Recently, it was reported that apple's partner TPK technology planned to start mass production of nano silver wire touch panels in the fourth quarter of 2019 to meet the growing demand for flexible OLED mobile phone screens, which undoubtedly added imagination to nano silver wire.

2020 will be the next flashpoint:
The global slowdown in smartphone growth is an opportunity for silver nanowires to replace ITO's conductive films. Whether it's facial recognition, full screen, or the current hot AI feature, the smartphone industry needs revolutionary innovation.For now, foldable phones are a good bet. As the size of the screen increases, you have to bend it if you want to carry it around. On the other hand, if the screen can be folded, it will bring a new product experience and business model, bring huge market opportunities.
Silver nanowires can better meet the needs of rapidly changing and innovative products, and the trend of replacing traditional conductive materials has become irreversible!



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