Kunpeng plan As a "big piece" on the mobile phone, in fact, from the early days of the birth of smart phones, the screen is the configuration that mobile phone manufacturers focus on upgrading and promoting, from the early days of the smart phone era to simply promote the large screen, to the later upgrade of resolution and refresh rate, and then to the sampling rate color depth in previous years, etc., even if the improvement of chip performance and energy consumption is always unpredictable, but for the upgrade of the screen, various manufacturers have never been left behind. After rolling up the parameters that can be seen by the naked eye, since last year, mobile phone manufacturers have a new development direction for the screen.
This direction of development is eye protection.
Since the beginning of the Honor 90, after the 3840Hz UHF dimming technology was first promoted, various companies have also chosen to follow up, and even a lot of eye-care special terms have been born, it can be said that 2023 is the year to open the era of "big eye protection" for mobile phones. Of course, as a consumer, of course, the author is very willing to see mobile phone manufacturers roll up on the screen eye protection, but there may still be many consumers who have questions about this, and there is nothing wrong with looking at the mobile phone screen for a long time.
Eye protection technology ranges from blooming to high-frequency PWM dimming
In fact, when it comes to eye protection functions, mobile phone manufacturers have actually been laying out for a long time, for example, in the early years, there was a night shift function on the iPhone, that is, night mode, in order to reduce the fatigue of the user's eyes when using the mobile phone at night. However, few people will choose to turn on this function, the reason is that after turning on this function, the phone screen will become very yellow, which has begun to be yellow enough to affect the user's experience.
Later, after a lot of popular science, users gradually know that in fact, the main culprit of eye fatigue caused by the current mobile phone screen is actually strobe dimming technology, the current mainstream strobe dimming technology is PWM and DC, compared with the LCD screen that is almost extinct in models above 1,000 yuan, most of the smart phones with OLED screen have adopted PWM dimming, which can make the screen display effect better, and at the same time more power-saving, the disadvantage is that it is a bit eye-wrenching.
In order to solve this problem, in the past few years, manufacturers have chosen DC-like dimming, compared with LCD's DC dimming, it is difficult for OLED screens to do full DC dimming, so manufacturers can only do DC-like dimming, for example, OPPO is said to have used mask dimming + Dither smoothing to achieve DC-like effects, but at present, most of the DC-like dimming is from the perspective of software, and the screen substrate has not been upgraded, so forcing DC-like dimming will cause the screen to be color cast, Serious problems such as light and dark gray scale deterioration and even color faults.
Therefore, later mobile phone and screen panel manufacturers brought high-frequency PWM dimming at low brightness, which solved the problem of traditional low-frequency PWM dimming, theoretically speaking, after the strobe exceeds 1250Hz, the impact on the human eye will be greatly reduced, and after exceeding 3125Hz (IEEE standard), the human eye will basically have no impact, and the display effect of the screen will not be greatly reduced, so this is why mobile phone manufacturers have been rolling the value of PWM dimming.
Of course, in line with the attitude of seeking truth from facts, the author still wants to remind you: at present, there is no open, widely recognized, clinically certified eye protection standards in the mobile phone industry, and the current use is basically based on the lighting eye protection standards of lamps and lanterns, which can be referenced, but the actual effect is still the most secure.
Although the perception of eye protection is not strong, it is definitely a pain point
For consumers, manufacturers have chosen to roll up to protect their eyes, which must be a good thing, after all, a mobile phone may be used for a few years at most, and it is a lifetime thing for eyes to be broken. And, in fact, in recent years, consumers have long been aesthetically tired of the key publicity direction of manufacturers in recent years, because the performance of most manufacturers does not count by themselves, and they also focus on promoting the image function, but it is difficult for consumers with average image functions to have a sense of improvement without comparison.
Therefore, improving the comfort of using the screen is definitely a new direction, and it is also an improvement that consumers can clearly perceive, for example, many flagship Android users, going to use the iPhone will definitely be a little unaccustomed, so to speak, in 2024, if you haven't kept up with the manufacturers of eye protection screen technology, it is difficult for consumers to buy it.
Some people may think that rolling eye protection is also a thankless behavior, because it is not as intuitive as the battery life, and everyone's sensitivity to screen flash is not the same, so the so-called eye protection is just metaphysics. But for current users, eye protection is definitely a potential pain point, after all, today's mobile phone usage scenarios are becoming more and more fragmented and diversified, and we are in contact with the screen for more and more time.
Just as Zhao Ming, CEO of Honor, said, in the near future, mobile phones will fully enter the era of eye protection, perhaps in daily use, we may not really feel the importance of eye protection, but the real charm of technology, is not that we can not feel the existence of technology? For consumers, the eye protection technology of the rolling screen is far more meaningful than the "war of words" between manufacturers.