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The iPhone this year seems to be a little difficult to overcome the “color”. A few days ago, the new blue ugliness of the iPhone 12 series still complained about the entire network, and even compared to the blue of economic daily necessities such as trash cans, toilet brushes and underwear, making the iPhone lose face always exquisite and of high end.
However, playing with the stem belongs to the game of stalking. After touching the real phone, users quickly get used to this blue color. After all, there is still a color difference between the picture and the actual phone, and the craftsmanship can greatly affect the texture. Then it went out.
But I did not expect that just a few days after the disappearance, iPhone 12 and “green” would be connected again. The specific situation is that some iPhone 12 series machines will show an irregular greenish phenomenon when displaying gray screens in low brightness.
If you think the new blue is bad, you can choose not to blue. And the “green screen” will be much more serious: many users indicate whether the quality of the iPhone 12 screen quality control is a problem.
▼ ▼ ▼ Related images:Click on the image to review the comparison with the blue iPhone 12▼ ▼ ▼
01 ／ Not only “green”, but also “green” are different
According to images uploaded by users, iPhone 12, from the smallest iPhone 12 mini to the largest iPhone 12 Pro Max, may have varying degrees of low brightness and the screen will turn green. So how do you know if your iPhone 12 is green or not? First of all, we need to know that for this green screen phenomenon to appear to its fullest extent, two conditions must be met at the same time.
The first condition is low brightness. Since the red, blue and green pixels emit more intensely at high brightness, the mixed color is even more uniform white, but at low brightness, the color of the screen driver circuit appears to be better at low voltage. Not so controllable anymore Many problems can only be exposed in low light conditions.
The second condition is to display a dark interface or image but not pure black. Since OLED pixels rarely emit light in black, a non-black interface should be used to detect, especially low-light dark gray.
The simplest way to fulfill the above two conditions at the same time is to lower the brightness of the phone screen in a low light environment and open the WeChat “Shake” interface at the same time. In this interface it will be clear if there is a problem with the green screen.
Although it is also a “green screen”, the 12 series iPhones are still “green”. For example, some people turn green across the entire screen, while others turn green around the edge of the screen, and some people turn green irregularly.
Also, the “green screen” doesn’t just affect the iPhone 12 model, but all iPhone 12 series have green screens. Among them, the iPhone 12 mini is currently the least “symptom”.
In any case, it is clear that this is no longer an issue of chance, but a large scene.
Further reading:Will the disaster be seen when the iPhone 12 mini is released? Thumb with one hand cannot touch with 3 main solutions▼ ▼ ▼
02 / Is the reason software or hardware?
Knowing that “green” is only the first step, we also want to know why this phenomenon occurs.
Abnormal display performance is nothing more than that there could be a problem in two respects, a software error or a hardware problem.
What is the “green screen” of the iPhone 12? At the moment, there are many different speculations. Apple-related personnel have been reported to have received a large number of such reports and the preliminary judgment is that the software system is a problem.
The possibility of this situation is not small. Because just this year, the Samsung Galaxy S20 Ultra flagship model also experienced a “green screen” phenomenon, which this time around is very similar to the performance of the iPhone. This is a software bug that was finally fixed perfectly after Samsung sent out the new G98xBXU1ATD3 firmware.
Of course, on the other hand, we cannot rule out the possibility of hardware problems, because the current iPhone 12 is basically the same system version, but the green screen appears very random, and the specific symptoms are not regular.
As for the green screen issue, OLED screens also have a “previous history”. And from the light-emitting mechanism of the OLED screen itself, there is some truth.
We know that the RGB subpixel arrangement generally used in LCD screens – the number of red, green, and blue pixels – is balanced. But this is generally not the case with OLED screens, because the entire iPhone 12 series uses a sub-pixel diamond arrangement screen, so we won’t talk about other sub-pixel arrangements here.
OLED diamond arrangement (provided by Aifaner)
The diamond arrangement uses a diamond-shaped arrangement of sub pixels. A full pixel has a red, blue, and green pixel ratio of 1: 1: 2, which means that one pixel contains one red sub-pixel, one blue sub-pixel, and two green sub-pixels. Pixel.
Although the size of the red and blue sub pixels is larger than that of the green sub pixels, the number of green pixels is twice that of the red and blue pixels, and at low brightness, green material usually has a higher luminous efficiency. If control is not well understood, there is in theory the possibility of a “green screen”.
However, the distribution of green pixels across the entire screen is uniform and the greening of the “green screen” phenomenon is more uneven: can it only be pushed to the head of quality control? For Apple, which has always controlled the supply chain very strictly, such a large problem has not been exposed in the three years since the iPhone X started last year’s iPhone 11 series, and the possibility of hardware problems is not. too big.
👇👇 related images:Let’s take a look at the details and evaluation of the iPhone 12 mini unboxing 5 big strengths and 1 regrettable disadvantage👇👇
For users who have already purchased a “green screen” iPhone, they are much more entangled. On the one hand, this problem does not always concern him. Maybe you will only notice when you are lying on your bed in the evening before going to bed and playing with your phone.
Another part of the users may be caught up in the cost of time and other problems, not knowing whether to wait for the system to be updated and fixed or to return to the store. And some users also reacted, the store staff said everything was normal in quality control and could not be replaced.
My suggestion is that if you are really upset about it, you should try to resolve the matter as soon as possible, whether you go to the Apple store to try to exchange or return the product, you can try, even if you return, It is easier to buy when the time is right than to wait.
Since the current explosion of problems is relatively concentrated, I believe that Apple should soon provide the results of the investigations and solutions, but from the personal point of view of consumers it is better not to wait.
Resolve early and relax early.
👇👇 related images:See the details of the unboxing of the iPhone 12 Pro Max and the evaluation of the 6 main strengths👇👇
03 / Mobile phones are not “green” the first day
Indeed, this time the iPhone “Green Screen Door” is not the biggest noise, you also have to remember that there were some “rollovers” of the screen in OnePlus 8 Pro before. Moving forward, a similar “green screen door” also occurred when the Huawei Mate 20 Pro launched in November 2018.
The situation at the time was that the Mate20 Pro with LGD screen had a “green screen” phenomenon, while the screen with BOE basically did not appear.
At the time, it was also the first time that public users raised strong doubts about the mixed use of screens, although in supply chain management, having different suppliers for a component is the most common coverage strategy. But after all, this kind of problem has caused harm to individual consumers.
As for the reason, some insiders have cited the explanation given by Samsung’s OLED experts as:
When the OLED display is produced, the laser carving engineering differentiates the MOSFET processing to cause the color cast, which is a production quality problem and causes the screen to display the color cast.
In the end, the after-sales strategy provided by Huawei’s official customer service is that within 7 days of receiving the mobile phone, if it is detected at the official Huawei authorized customer service center that there is indeed a green screen phenomenon , can be returned. If it exceeds 7 days, it can also be replaced for free with a new machine.
Also, a kind of “green screen” that is often mentioned is that the edge of the curved surface is green. This problem is relatively simple. The curved surface causes a tilt angle, which makes the OLED look like a color cast at a large angle. However, some suppliers have made targeted optimizations and others have not, so there is the phenomenon that the edge of the curved surface has different green colors.
If appearance and color determine our first impression on mobile phones, the screen determines our second impression on mobile phones. In actual use, we can’t always bypass the screen as a bearer, which carries almost all interactions and most of our life needs, and all information is conveyed from this screen.
Therefore, screen problems are also the most common problem, ranging from light loss, Yin Yang screen and yellowing in the LCD era to today’s digging errors, color cast and green. In fact, if you search for it, you can find that the screen problem has never stopped. But such a large problem is indeed relatively rare, and it also makes Apple very passive.
I prefer this to be a software bug rather than a hardware issue, so everyone’s green screen phenomenon can be fixed by waiting for the system update. But the final result of the investigation will likely take some time.
If you are not sure if your iPhone has a “green screen” phenomenon, you might as well turn off the light now, turn down the screen brightness, open WeChat and shake it.
How is the result?
👇👇 Extended Reading: Test 9 new features and strengths of iPhone 12/12 Pro! But there is still a serious gap waiting for Apple to improve 👇👇
[Questoarticoloèstatoristampatoconl’autorizzazionedi”AiFaner”testooriginale:Tucao blue è appena passato, perché l’iPhone 12 è di nuovo correlato al “verde”?】
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