According to media reports, Cambrios, the company with the largest number of nano-silver wire patents in the world, filed an invalid request for C3 Nano's transparent conductive film patent, and a patent war broke out among the global nano-silver technology giants.
So, what is a nano-silver wire that can attract the two giants to fight so hard? //
First of all, talk about popular science. Nano-silver wire is a conductive material. The ink material of nano-silver wire is coated on plastic or glass substrate, and then the transparent conductive film with nano-silver wire conductive network pattern is carved by laser lithography technology.
Because the raw materials are mainly composed of silver and nanoparticles, nano-silver wires have good conductivity, excellent light transmittance and bending flexibility, and can be used to make ultra-small circuits.
With the popularization of flexible display products, ITO conductive glass has exposed its own shortcomings. Due to the brittleness of ITO, glass must be used as a protective layer in application, which limits the development direction of touch screen to flexibility. In order to solve the above problems, many touch panel manufacturers at home and abroad have to shift their development focus to ITO replacement technology, and nano-silver wire is one of them.
It is reported that compared with other substitute varieties, nano-silver wires have unique advantages in technology:
1, simple production process and high yield. The conductive film made by silver wire technology can achieve higher transmittance because of its small line width.
2. The nano-silver wire film has a small bending radius and a small resistance change rate when bending, so it is better applied to curved surface display equipment, such as smart watches and bracelets.
3. Excellent electrical conductivity, light transmittance and bending elasticity.
4. Due to the large aspect ratio effect of silver nanowires, they also have outstanding advantages in applications such as conductive adhesives and heat-dissipating pastes. //
At present, nano-silver wires are considered as the main materials of flexible organic light-emitting diodes in the future.
Some people may ask, since the speculation of flexible organic light-emitting diodes, all links in the industrial chain, such as substrates, modules, screens and so on. , have been dug up, but why do they only ignore the silver nanoparticles?
Such a question is not unreasonable. At present, Samsung, Huawei and other manufacturers that have announced that they will release foldable screen mobile phones have not exposed the use of nano-silver wire materials; So, is nano-silver wire unpopular?
Let's look at a news story five years ago. 20 14 foreign media reported that Apple's Iwatch officially adopted TPK Hong Chen's nano-silver wire film technology, and this move of Apple can be regarded as an endorsement of nano-silver wire.
19 In the afternoon of February, the World Intellectual Property Organization (WIPO) showed a latest patent of Apple, which was used for Apple Watch. By using a flexible screen, the dial and strap of the watch can be used as a display screen.
In addition, after Samsung and Huawei successively released folding screen mobile phones, Apple has officially joined the battle for flexible screens; A few days ago, Apple updated a patent to draw the appearance of a foldable iPhone.
From Apple's recent two actions, it can be seen that it is more like a big move to launch a foldable screen mobile phone behind Samsung and Huawei. Imagine, five years ago, Apple had adopted nano-silver wire materials; Five years later, Apple officially joined the folding screen war. Will its killer be nano-silver wire?
Just today (February 20th), the media broke the news that Apple's partner Chen Technology plans to start mass production of nano-silver wire touch panels in the fourth quarter of 20 19 to meet the growing flexible demand of mobile phone screens, which undoubtedly adds imagination to the nano-silver wire. //
Although the domestic nano-silver wire market is almost monopolized by American enterprises at present, it does not mean that China enterprises have no technology. Take Cambrios and C3Nano, the two companies that started the patent war of nano-silver wire, for example:
Cambrios, founded in 2004, has the largest number of patents on nano-silver wires in the world, and has obtained 157 patents at home and abroad, covering materials, film formation, technology and application. At the same time, Cambrios is the world's first large-scale production and successful commercialization company of nano-silver wire, and also the largest supplier of nano-silver wire in the market.
At present, the technology patent of Cambrios has been used by China.
In 20 17, Cambrio established Jinjiang Natural Materials Innovation Material (CAM China) in Jinjiang, and moved the most advanced manufacturing technology of nano-silver wire from Silicon Valley in the United States to Jinjiang in China for implementation.
From 2065438 to June 2008, Cambrios and China company Suzhou Novi Nanotechnology Co., Ltd. completed the interactive authorization of patents related to nano silver. Through authorized cooperation, jointly promote the development of nano-silver technology industry.
Let's take a look at C3Nano, an advanced materials company dedicated to developing new materials and chemical technologies for a wide range of electronic applications, and a leader in touch, display and flexible electronics industries as well as transparent conductive technology based on nano silver.
However, in its list of investors and partners, there are many China institutions or enterprises. It is reported that investors and partners of C3Nano include Jinshajiang Venture Capital, Phoenix Venture Capital, Japan Photo, Hitachi Chemical, Lance Technology, Nagase USA, and other undisclosed investors, including a top global mobile Internet technology company headquartered in Silicon Valley.
Obviously, during the development of nano-silver wire technology, companies from China and the United States crossed each other many times. Perhaps this will become the next "intersection" of Chinese and American patents.
Finally, let's take a look at the related concept stocks compiled by the stock selection treasure:
This article comes from the stock selection treasure.
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