It is said to have the functions of waterproof and oleophobic, scratch resistance, anti-radiation, anti-blue light, relieve visual fatigue, and efficient sterilization.
Is the nano mobile phone film a black technology or does it charge IQ tax?
Recently, a "black technology" nano mobile phone film claimed to have extremely high hardness, can smash walnuts, and anti-radiation. This has caused many netizens to question: "After sticking the film, you can't feel the existence of the film." Some insiders even Think that "nano film" is collecting IQ tax from consumers.
A reporter from Beijing Youth Daily bought two top-selling nano-films on a certain shopping platform, but the entire product could not find information about the manufacturer at all. It was an out-and-out product.
Broke the news
Apply a little liquid to the screen of the phone and then dry the nano film, it will be invisible
"A few months ago, I was near a market in Yanjiao, Sanhe, Hebei, and saw someone on the side of the road putting up a film on a stall, claiming to be a brand new high-tech product, so I spent money to put a film on my phone." Consumers Mr. Zhang broke the news to the reporter of Beijing Youth Daily. After pasting the film, he kept muttering in his heart, “At that time, the stall owner smeared a little liquid on the screen of his mobile phone and then dried it in a small box. The nano film is attached."
Mr. Zhang said that he spent 20 yuan for this film, but unlike the tempered film previously posted, the film is not visible at all. "Is the protective film pasted on the mobile phone display? Invisible and invisible, I have been half-believing this."
Coincidentally, Mr. Yang, who works in Beijing, bought a bottle of "nano-membrane" potion from the Internet, followed the instructions of the merchant's video, and poured the potion on the screen. After a few minutes, the potion dried and solidified.
"Like alcohol, after I felt it evaporated, nothing was left."
A reporter from the Beijing Youth Daily also found a lot of posts about "nano film" in the media. The netizen "Mo Se Phantom" said that he had seen someone set up a nano film for a mobile phone on the side of the road, and he was thinking of trying it. Give the phone to the little boss.
"The boss put my phone in a small box that was shining red, and after a few minutes, he told me that it was ready. I took the phone back and saw that there was no film on the phone, the same as it was not."
The netizen "Mo Se Phantom" asked the boss. The other party said that the nano film is invisible, but it can increase the hardness of the phone screen. "After all, he took out his phone and smashed a walnut in front of me. Said triumphantly,'Look, this is my mobile phone with a nano film. Two years ago, the screen is still so new'..."
Some netizens also said that after spending 100 yuan to paste the nano film, the phone still has a scratch.
Merchant
"Miracle Potion" has a series of effects and needs to be re-plated after 3 to 6 months
A reporter from the Beijing Youth Daily conducted consultations with many merchants selling nano-films on the online shopping platform.
A merchant said that the nano film sold in its store uses German nanotechnology. This liquid will form an invisible film on the phone screen, which has a series of functions, such as touch sensitive, waterproof and oleophobic, scratch and abrasion resistance. , Anti-radiation, anti-blue light, and alleviate visual fatigue. "For young people who play mobile phones, it can protect eyes and increase the pleasure of gaming experience; for pregnant women, it can resist radiation and reduce the harm to babies in the abdomen; it also helps to certain extent for presbyopia, reducing fingerprints , Easy to clean and efficient sterilization."
Another merchant said that such a mobile phone nano film replaces the traditional film. The main components contain silicon dioxide and nano fluorine, which can increase the hardness of the screen and resist general scratches, such as sharp wallpaper knives. "Nano film generally does not need to be removed. , This protective layer is only 13 microns, it will wear off slowly with the use of the process, after 3-6 months need to re-coating or filming."
A reporter from the Beijing Youth Daily found on the shopping platform that users had mixed reviews on nano-film.
Some users think that the nano-film is effective in relieving eye soreness, and some people imitate the commercial video show, using the coated mobile phone screen to perform a walnut experiment.
experiment
Nano film evaporates quickly and has no special protective effect on mobile phone screen
In response to the miraculous effect of the "magic potion" circulating on the Internet, a reporter from the Beijing Youth Daily conducted an on-site verification.
The price of nanomembrane on a shopping platform ranges from about 10 yuan to 20 to 30 yuan per bottle.
The reporter selected nanomembrane potions priced at 9.7 yuan and 13.99 yuan, and bought a bottle of each from two merchants.
After getting the sample, the reporter saw that the two bottles of nano-film bottles were of different colors, and the height of the bottles were more than two centimeters. There were some colorless, transparent and tasteless liquids inside.
There are instructions about the product on the bottle and a piece of cardboard, with English words such as "9H+" and "invisible liquid screen protector" (liquid invisible screen protector).
After searching, "9H+" is the mark of hardness.
Unlike general products that need to be marked with the manufacturer, place of origin, and after-sales service contact information, the two bottles of nanomembrane bought by the reporter have no relevant information.
Since the nanomembrane can be solidified quickly and its strength is very high, the reporter has conducted experiments using mobile phone tempered film and mobile phone screens.
The reporter of Beiqing Daily noticed that in the demonstration video of the merchant, after applying the nano film, a piece of paper was placed on the screen and cut with a wallpaper knife. The paper was damaged but the screen was intact.
The reporter conducted an experiment on this. First, prepare two tempered films and two mobile phones of different brands. Without applying nano-film, cover the paper on the two tempered films and cut them with a fruit knife. There were no scratches on the tempered film; the reporter used a fruit knife to cut the two mobile phone screens, and there were no scratches on the phone screens.
In the merchant's publicity, in order to prove that the nano film can better protect the mobile phone screen, the merchant used the mobile phone coated with the nano film to smash the walnut at the front of the mobile phone. The walnut cracked but the screen was intact.
In this regard, a reporter from the Beijing Youth Daily found a mobile phone with a good screen, and also tried to smash the walnuts with the mobile phone screen without applying the nano film. After smashing the walnuts on the concrete floor, the screen did not find any damage or new additions. Scratches.
When a reporter from the Beijing Youth Daily asked the merchant, the other party once said that after the nano film is applied, a thin film of ten micrometers invisible to the naked eye will be formed on the screen, but it will be slowly worn away with use, 3 to 6 It needs to be re-coated or pasted after a month.
A reporter from the Beiqing Daily found in actual observation that after the nanomembrane is applied to the mobile phone, the nanomembrane liquid will evaporate quickly, leaving only a watermark on the screen.
But if you wipe it gently with your hand, the watermark will be wiped off.
In order to verify whether the nano film can form an effective "filming" effect, the reporter of Beijing Youth Daily applied a red watercolor pen on two tempered films, poured two bottles of nano film on the marks of the watercolor pen, and used the accessory accessories. Spread the nano film evenly, and the liquid quickly evaporates and becomes dry.
After three or four minutes, wipe the part coated with the nano-film, the pen print can still be easily wiped off, the nano-film is not fixed on the screen, and the reporter cannot detect any coating.
prompt
Insiders: The main components of the nano film are similar to nail polish and the effect is almost negligible
Regarding the problem of smashing walnuts on mobile phone screens in stores, some knowledgeable people said that the current commonly used mobile phone screens are high in hardness and will not easily be damaged after being bumped. It is not a big problem to smash the paper walnuts used by the merchants.
"After the mobile phone screen protective film is attached, it will have a stress dispersion effect on the screen." A staff member of a well-known supplier of screens for various electronic products in Shanghai told a reporter from Beijing Youth Daily that current electronic products, including mobile phones, The hardness of the screen has reached the highest level. "I think the film is to prevent the screen from being scratched or the phone is broken when the phone is dropped. I use the phone screen to smash the walnut to test the impact resistance of the screen. Even if the phone film is attached, Different angles and strengths will produce different effects."
“Applying nano-membrane on a mobile phone is similar to applying shoe polish on shoes. Although it has a little effect, it will soon disappear.” A film-sticker introduced that nano-membrane is a kind of conceptual hype, in fact, it can really play a role. Negligible, so most of the stall owners no longer sell nanofilms for customers.
Regarding the nano-membrane "potion" that is touted on the Internet, a reporter from Beijing Youth Daily contacted industry insider Liming (a pseudonym). In an interview, he said, "Its main ingredients are similar to nail polish, and it will be rubbed soon after application. If it drops or volatilizes, it will not have much effect on the screen."
Liming said that according to the general rule, the more the coating of the mobile phone screen film and the thicker the mobile phone film, the more effective it is to protect the mobile phone screen. As for the nano film with a claimed thickness of 13 microns bought by a reporter from Beijing Youth Daily, it protects the mobile phone screen. Limited, plus invisible and intangible, the effect is actually difficult to confirm and almost negligible.
This article/Bailong reporter Dong Zhenjie
Trainee Feng Yi Coordinator/Zhang Bin