iPhone to do a full screen, but know how difficult it is to have a full screen phone

Yesterday I was swiped by a message on Weibo. This news is not new, even something we will talk about almost every year-iPhone is going to use a full screen, and it is still ‘official real hammer’.
This can startle me. After all, the iPhone has removed the bangs, but everyone is looking forward to it. I quickly went to the cover page of the Apple Support Twitter homepage mentioned in the news to find the truth.
At first glance, the two women’s iPhones in the photos do seem to use a screen without bangs, which seems to be a full-screen iPhone.
But just when I thought the full-screen iPhone really was coming, I magnified the picture and took a look. In fact, both iPhones in the photo had bangs, but the reflections and black background put the bangs in hiding.
Enlarge the picture 100%, you can actually see that there are bangs.
The iPhone can achieve a truly comprehensive screen, which is a great thing from an aesthetic point of view. From the user’s point of view, a phone with a full front screen can bring us a visual impact. But from a technical point of view, building a true full-screen phone is not something that can be built.
Especially on devices that have a tight internal space like a cell phone.
▲ Samsung Galaxy Note Edge is the originator of curved screen phones Picture from AndroidPit
Mobile phone manufacturers can always capture the consumer’s mentality, so they are not trying to make a true full screen on the mobile phone. Looking back, the manufacturer even went crazy to cover the screen with the entire front of the phone.
If it weren’t for the drilling screen, the current mobile phone may have various forms such as a flip cover and a slide cover.
▲ Huawei Mate30 and Mate30 Pro
To say that the originator of full-screen mobile phones, I have to mention the “visual full-screen” mobile phones based on Samsung Galaxy Note Edge. This group of products will reduce the width of the two sides of the screen by bending the screen, and visually make the sides of the screen close to the design without BM black edges and borders.
This design can be seen on some flagship mobile phones so far, and it has also been upgraded to a waterfall screen with greater curvature, replacing physical interaction with screen interaction.
Last year, there was a wave of slider revival in the mobile phone circle. Xiaomi, Glory, and Lenovo each launched their own slider phones, placing the screen “simple and rude” on the upper layer, reaching a screen ratio of 93% (currently the limit of mainstream bar phones) Screen ratio is 91%).
In addition, there is a mechanical platform to separate the camera from the screen while maintaining the bar shape. Like the previous Vivo NEX and OPPO Find, they are all outstanding mechanical structures. Later dual-screen mobile phones brought the manufacturer’s pursuit of screen ratio to the extreme, and its purpose was to make more room for the front of the mobile phone.
▲ vivo NEX
From a morphological point of view, the manufacturer’s pursuit of a full-screen can be called crazy, but after an in-depth analysis, there is a technical compromise behind every design. Although manufacturers are moving towards the goal of true full-screen, they must not ignore the several openings near the screen-sensors.
In fact, while expanding the proportion of the screen, manufacturers have been trying to hide the sensors of the handset and light distance under the screen, trying to minimize the openings on the front of the phone, so the two tasks of expanding the screen and hiding the sensors are in sync. ongoing.
However, the addition of functions such as face recognition, gesture recognition, and so on, has led to more and more mobile phone sensors, which makes the screen-to-body ratio contrary to mobile phone functions.
When the Google Pixel 4 first came out, some people thought that this phone was a “big forehead”, but they ignored the 8 sensors on the top of the screen. In addition to the handset, camera, light distance and other parts, these 8 sensors are also used for motion detection The Soli radar and the recognition of the dot matrix projector, which makes the Pixel 4 has a sensitive motion recognition system.
Even if the radar and infrared sensors are removed, at least three openings for the handset, light distance sensor, and camera are needed above the screen.
Of course, mobile phone manufacturers have not moved the sensors to other places, so that at least three sides of the screen have a fringe design that does not affect the look and feel. Xiaomi MIX ’s sensors are a good example. However, this design that subverts the traditional use of logic was finally replaced by the slider of Xiaomi MIX 3. The reason may be that the slider is more in line with the design requirements of the full screen, but even so, the slider design was only scratched by several manufacturers in the end. A gust of wind.
In fact, whether it is a slider or a lift design, these are just temporary solutions introduced by the manufacturer to ‘reduce’ the sensor space. More complex body structures increase not only the manufacturing cost of the mobile phone, but also occupy a large amount of money. Interior space and tightness. Although manufacturers can give data of hundreds of thousands of openings and closings when advertising, in fact, everyone’s habits and scenarios are different, and the mechanical structure is naturally not as strong and durable as the traditional straight bar.
Would you give up the body because of the bigger screen?
▲ OPPO Find X specially designed electric lifting platform
Therefore, at present, the mainstream candy bar mobile phone to increase the proportion of the screen is mainly implemented in three ways: waterdrop screen, drilling screen, bangs screen. The first two are by leaving a space for the camera lens and hiding the sensor on the screen. The bottom or bezel realizes a full-screen design, even reducing the number of sensors; Liu Haiping is still the current method to take into account both functions and screen ratio. The only problem is that it needs to occupy a certain display space.
▲ Vivo NEX uses under-screen photosensitive + micro-slit infrared design
So in the final analysis, whether a mobile phone can achieve a true full-screen is actually not only a question of mobile phone manufacturers and screen suppliers but also whether sensor technology can achieve accurate under-screen sensing. From the current point of view, the OLED-based under-screen handset, light, and infrared sensors can already be hidden in the screen and side seams, but the under-screen camera is still a hurdle for manufacturers to go through.
At this month’s Future Technology Conference, OPPO exhibited the first prototype machine designed with an under-screen camera. With the help of the screen-dense pixel small hole perspective principle, the camera can shoot through an OLED screen.
▲ OPPO under-screen camera design patent
▲ Optimized before and after contrast shooting under the screen
However, ‘photographing under the screen’ is not solved by launching a set of patents. From the proofs released by OPPO, it can be seen that the original film of the under-screen camera performs generally in terms of color and sharpness compared with ordinary front shots, and requires post-optimization to To achieve the performance of the ordinary front camera.
In fact, it also invisibly tests the manufacturer’s ability to adjust the camera hardware and camera system. In addition, CMOS components specially designed for under-screen shooting may be needed.
Of course, in addition to the OPPO family, Xiaomi, Vivo, and Huawei also have patents for the under-screen camera, which are generally achieved by customizing the screen material and the characteristics of the material transmission. Therefore, we can see that the design of full screen and shooting under the screen will definitely be the future development direction of mobile phones, but under the current technical conditions, these concepts still have many technical problems that need to be overcome by mobile phone manufacturers in conjunction with screen and camera suppliers It takes at least 1-2 years from the research and development to the investment of ‘true full-screen’ mobile phones on the market.
So the “full-screen iPhone” at the moment is actually more of a self-heal, not to mention the official “real hammer”. If you want to buy used iPhones, there are used iPhone 6s plus, used iPhone 7, used iPhone 8 plus on sale in Energyitshop!

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