Shulou(Shulou.com)05/31 Report--

OPPO held a new product launch to launch the annual flagship OPPO Find X2 series online. By analyzing some parameters of the new machine, we can see the high-end positioning of the Find X2 Pro, such as top 120Hz QHD AMOLED screen, ceramic / leather material, front and rear hyperboloid design, Qualcomm Snapdragon 865 X55 and 65W super flash charge, etc.

The X2 pro not only has the OPPO's best screen to date, but also has the most powerful ultra-sensitive full-focus imaging system. The main photo is the customized Sony outsole image sensor IMX689, which is the world's first all-pixel omni-focusing technology. I believe many people are interested in the sensor and focusing technology of this phone. Let's see.

The X2 pro is equipped with OPPO's most comprehensive ultra-photographic full-focus imaging system, which combines a 4800-pixel master camera, 48 million-pixel wide-angle camera and a 13 million-pixel long-focus rear camera. Let's take a look at the 4800-pixel IMX689 main camera.

The custom Sony large-size sensor has an image sensor size of 1.43 inches and a single pixel size of 1.12m, which are the largest of all 48 million-pixel mobile phone cameras. At the same time, there is still 12MP after four-in-one, and the single pixel size reaches 2.24m, which is the largest single pixel size in the same specification 12MP. Sony IMX689 set two records for the largest image sensor size and the largest single pixel size in a 48 million-pixel camera.

Compared with the previous generation, the Find Pro customized Sony IMX 689 sensor has a 96% increase in photosensitive area and a 130% increase in sensitivity. A larger photosensitive area means that the sensor has a better ability to capture light. Even in the dim light environment, the Find X2 Pro main camera can clearly retain the details of the dark part, reduce the noise of the picture, and obtain excellent night view photos.

At the same time, the main camera also supports hardware-level dual native ISO technology, which can intelligently switch the ISO of the camera according to the ambient light in dark and highlight environments. Thanks to dual native ISO technology, the Find X2 Pro suppresses noise in dim light, maintains detail in backlight, and improves dynamic range.

"first-class outsole", the main photographer of Find X2 Pro benefits from the innate advantage of outsole, which lays the foundation for stronger photosensitivity. It is the characteristics of this sensor that ensure that the Find X2 Pro can become the world's first omni-pixel omni-focusing technology. Before we talk about this, we also need to know what focus technology is.

Huawei P40

Huawei's global press conference was officially held online, bringing us a new flagship Huawei P40 series. For friends who pay more attention to the daily experience of mobile phones, the higher screen refresh rate is undoubtedly the most attractive upgrade: Huawei P40 Pro/P40 Pro refresh rate can reach 90Hz.

First, we need to know what the screen refresh rate is. Simply put, the screen refresh rate is the number of times the screen refreshes the picture per unit of time. The picture displayed on the screen moves because there is a slight difference between two consecutive frames. When the difference of successive frames is presented in a certain order, the feeling of moving picture will be formed visually.

The principle is not particularly complicated. I believe many friends have played paper animation: when we open the page, we can see that there will be pictures on every piece of paper, but each one is different. When you turn the page continuously, it will give people the illusion that the picture is moving. Yes, it's the same with refreshing the screen.

So what is a high refresh rate? This involves whether the animation is smooth or not. For a long time, the highest refresh rate on the screen was 60Hz, or 60 frames per second. As long as the performance is enough and the software is optimized, the animation of the phone can run at this refresh rate, which is commonly known as fluency. But fluency does not mean good visual effect. For example, when the number of frames is small, we will feel that the picture moves very slowly.

The dull feeling of low frame count is particularly evident on large screens, which is why most computer gamers now use e-sports screens with high refresh rates. In fact, from the slow motion picture above, we can also see that the higher the number of frames, the smaller the difference between the two adjacent frames, and the animation will make people feel more smooth when playing.

At present, the so-called high refresh rate refers to the refresh that is higher than 60Hz. Several common high refresh rates on mobile devices are 90Hz and 120Hz, which are 90 frames per second and 120 frames per second. Take the 90Hz of Huawei P40 Pro as an example, which can provide half the number of frames of a normal 60Hz, which can bring more obvious animation fluency to users.

If a high refresh rate of screens can lead to a better experience, why isn't it popular on smartphones? In fact, it is very difficult to equip your phone with a screen with a high refresh rate.

From the hardware level, the high refresh rate of the screen means higher power consumption and higher performance load to the chip. For example, a phone with a normal refresh rate only needs to render 60 frames per second, but the refresh rate of 90Hz requires the phone to render 90 frames per second, which significantly improves the performance requirements, which will naturally lead to higher power consumption. This is not friendly for mobile phones with limited battery capacity.

In terms of software, the previous ecology was based on 60Hz. In order to get a more stable experience, the software needs to be deeply adapted. In addition, better experience of resources with high refresh rates is also a major aspect. For example, the current video is basically 24 frames per second, a more smooth video experience requires devices to support frame insertion technology.

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