Privacy film, everyone must be familiar with it.
When privacy film is applied to your iPhone, it can be used to obscure the screen at certain angles.
Essentially, this is a technique that reduces the brightness of a phone's screen by adjusting the light transmittance of the screen.
So, have you ever seen an iPhone with an "invisible screen" in the real sense?
Just recently, many media have exposed a kind of "meal card mobile phone" that is active on campus.
As the name suggests, from the outside, this phone is indistinguishable from a regular meal card, and there are hardly any traces of electronics.
But when we look with certain lenses, we can see the hidden iPhone screen.
Image source: Douyin
It looks like the screen is completely invisible.
In terms of functions, this "meal card mobile phone" can also be said to be quite comprehensive, whether it is surfing the Internet, playing games, reading novels, or watching short videos, it can basically operate normally.
As soon as the news came out, related topics also quickly rushed to the hot search on Weibo, triggering widespread discussions.
It is understood that the current price of this "meal card mobile phone" on the shopping platform is generally between 100 yuan and 300 yuan.
At the same time, the sales channels are also very hidden.
If you search for "Meal Card Mobile" on the e-commerce platform, the designated product will not be found on the platform immediately.
But after many associated searches, you can still quickly find the sales link of this phone.
Image source: Second-hand platform
In terms of technology, the implementation principle of the "meal card mobile phone" is not complicated, and it can even be said to be quite simple and crude.
According to the store that is engaged in the mobile phone repair business, all you need to do is remove the polarizing film from the screen and reassemble it when disassembling the old iPhone.
Once the polarizing film is removed, you can only see the white light emitted by the mobile phone screen, and then attach the polarizing film to the glasses to see the actual content of the screen.
At the same time, the glasses with polarizing film are very similar to sunglasses in appearance, and the white light emitted by the screen is also easy to blend with the white meal card, which is very hidden.
It is worth noting that since the "Meal Card Mobile Phone" mainly uses the method of flying wires during assembly, it is easy to have a bulging battery and even a fire.
Although the "Meal Card Mobile Phone" is not a high-end technology product, the social problems caused by it have brought a lot of controversy.
Image source: Social platforms
Among them, everyone is undoubtedly concerned about the regulatory issues that the "meal card mobile phone" will face after entering the campus.
According to the Notice on Strengthening the Management of Mobile Phones for Primary and Secondary School Students issued by the Department of Education in early 2021, in principle, primary and secondary school students are not allowed to bring personal mobile phones into the campus.
At the same time, after inferior modification methods, the "meal card mobile phone" also has a lot of potential safety hazards.
But then again, after all, we live in the age of the Internet, and it is obviously unrealistic to completely ban minors from accessing smartphones.
In order to completely solve this problem, whether it is to strengthen the review of products on the shelves of e-commerce platforms, or the correct guidance of both schools and families, both are indispensable.
What do you think about this? Feel free to leave a message in the comment area and discuss with you.
If you want to know more about the knowledge and skills of Apple devices and inquire about the warranty, you can follow my WeChat public account: cxkj-001 (fruit fan club).