If you have paid attention to the news about smartphones in the recent period, or have watched some content of our Sanyi life, you may know that in the period from the end of 2023 to the beginning of 2024, the industry suddenly ushered in a round of "explosion" in screen brightness.
In fact, it is not difficult to find that the screen of smartphones has been around since 2016, and there has been the concept of "bright screen" and "HDR". For example, LG G6, the industry's first model equipped with "Dolby screen", has a peak screen brightness of 600nit, and the Samsung Galaxy S8, which was released a little later than it, has a peak screen brightness of 1000nit.
But in the following years, the indicator of "peak brightness" of the screen of ** flagship mobile phones has actually been improving very slowly. In fact, until the beginning of 2023, the peak brightness of the latest flagship screen at that time was only around 1700nit.
However, by the middle of 2023, it will usher in a mobile phone screen with a peak brightness of 2600nit. In the fall of 2023, this number will become 3000nit, and in the next two or three months, the numbers of 4000nit, 4500nit, and 5000nit will appear at the launch of each new machine.
To be honest, we didn't have any doubts when we first saw these numbers, and we didn't hesitate to praise the technical advancements of these new screens. But when the time comes to February 2024, this thing seems to have changed a little.
The opportunity is a new screen evaluation report recently released by DXOMARK, although the credibility of DXOMARK is not as good as before, but they will at least explain their evaluation methods. For example, when testing the screen this time, DXOMARK made it very clear that they tested the brightness of the mobile phone screen by using different levels of light to illuminate the mobile phone, so as to simulate the use of low-light environments, ordinary environments, and use scenarios under heavy sun, and then measure the corresponding screen brightness.
In layman's terms, DXOMARK measures the overall brightness of a smartphone's "sunlight" mode.
But you should know that not all mobile phone manufacturers measure the brightness of the screen in this way. For example, some manufacturers have clearly stated at the press conference that the brightness of their mobile phone screen is obtained by "letting the mobile phone **hdr video, and then measuring the brightness of the highlight area under the highlight ratio scene (such as a searchlight in the dark)".
There are at least two major differences between this measurement and the measurement method used by DXOMARK. First, it measures the brightness of the screen that is "excited" for a short period of time due to the display of HDR content in a normal environment, rather than the brightness of the overall automatic brightness in an external bright environment.
Second, this method of measuring the brightness of the screen with HDR videos often requires that the highlight area in the video cannot exceed a certain proportion of the entire screen area. In other words, the "peak brightness of a small area" of the screen is measured, not the brightness of the entire screen when it brightens together.
Even if you don't know much about screen expertise, you may understand that the use scenarios corresponding to "HDR video brightness" and "sunlight brightness" are completely different, and "full-screen brightness" and "brightness of a small area", "continuous brightness" and "short-term brightness in a few frames" are technically impossible to be the same thing.
Of course, we are not saying that we are maliciously speculating on anyone, or that the screen brightness data of which model is wrong and unattainable. However, at least from the perspective of consumers, the screen brightness data obtained by different test methods will inevitably have different feelings in actual use. So which test method is more "useful" for consumers and has more value for horizontal comparison? I believe everyone will have their own judgment.
Part of this article is from the Internet