How to tell whether your mobile phone screen is good or bad? Teach you how to understand screen parameters

This article explains in detail what these six parameters represent, and how to judge whether the screen is good or bad based on the values ​​of these six parameters.

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1. Resolution

I believe everyone is familiar with resolution. In recent years, as the resolution of mobile phones has increased very rapidly, it has become the most frequently mentioned screen parameter by mobile phone manufacturers. It represents the number of pixels displayed on the screen.

Currently, the mainstream mobile phone screen resolutions on the market are 1080P and 2K. This is the resolution mentioned at the press conference, and the mobile phone parameter page generally gives specific values. For example, for Xiaomi 12, the resolution value of its screen parameters is: 2400ⅹ1080FHD+419PPI.

How to read this value? It is divided into two parts. One part is the 2400ⅹ1080FHD in front. FHD means full high definition, usually referring to a resolution of 1080P. In the past, 1080P basically defaulted to 1920ⅹ1080, that is, the screen has 1920 pixels horizontally and 1080 pixels vertically, with a total number of pixels of 2073600. Speaking of this, let me insert a topic. Since the screen sizes of mobile phones are different now, as long as the values ​​are close to 1920ⅹ1080, they are included in 1080P. In view of this, even if the mobile phone manufacturer claims that its mobile phone is 1080P at the press conference, you must remember to look at the specific value. The specific value of the resolution of Xiaomi 12 is 2400ⅹ1080, which is greater than 1920ⅹ1080. This is a real 1080P.

Back to the original question, the higher the total number of pixels, the better the screen, there is no doubt about this, but due to different screen sizes, the screen area of ​​mobile phones varies, so it is not enough to just look at the total number of pixels, but also pay attention to another parameter, that is, PPI, which represents the density of pixels. The second half of the Xiaomi screen resolution is 419PPI. The higher the PPI value, the better the screen display effect.

2. Color gamut

As the name suggests, color gamut refers to the range of color display. Since the display screen cannot fully display all the colors in the real world, manufacturers have established color gamut standards to measure the size of the device's color display range. The wider the color gamut, the better.

The common color gamut standards are: sRGB, NTSC 92, Adobe RGB, DCI-P3, and JMPA Color. We won’t talk much about the professional explanations, but will just post a picture for you to see and feel. The ranges of the five color gamut standards in the picture below, the red triangle is Adobe RGB, the black triangle is DCI-P3, the green triangle is NTSC 92, the blue triangle is sRGB, and the yellow triangle is JMPA Color. The size of the color range that each color gamut standard can cover can be seen at a glance through the coverage area of ​​the triangle.

Currently, most mobile phones on the market can achieve DCI-P3 wide color gamut.

3. Refresh rate

The refresh rate refers to the display frame rate of a mobile phone. To put it simply, it is the number of times the screen of a mobile phone is refreshed per second. The higher the refresh rate of a mobile phone, the better the display performance of the mobile phone. In the past, the screen refresh rate in the mobile phone industry was generally 60Hz. With the popularization of 5G, the screen refresh rate of mobile phones has basically reached 90Hz, and most flagship phones have reached 120Hz. For example, the OPPO Find N released this year and the newly released Xiaomi 12 have both reached 120Hz. Currently, the highest refresh rate of mobile phone screens on the market is 165Hz, which is equipped by the Nubia Red Magic 6 Pro just released at the beginning of the year.

4. Sampling rate

The full name of the sampling rate is touch sampling rate, and the unit is the same as the refresh rate, which is also Hz, but it has a different effect from the refresh rate. It affects the recognition efficiency of the touch operation of the mobile phone. The higher the touch rate, the better. For example, when we play games, we often need to click on the screen. The higher the touch rate, the faster it can respond to our clicks, and the smoother the game will be.

5. Peak brightness

There are two types of peak brightness. One is the manual brightness peak, which is the maximum screen brightness that can be adjusted by dragging left and right when we slide down the taskbar of the mobile phone; the other is the excitation brightness peak, which is the maximum brightness that the mobile phone can display after you set the mobile phone to "automatically adjust the brightness". The excitation brightness peak is generally higher than the manual brightness peak. The higher the peak brightness, the clearer the screen display will be under strong light. In the summer, when the sun is glaring outdoors, it is generally difficult for us to read the mobile phone. In this case, mobile phones with high peak brightness will have an advantage, and the eyes will be more comfortable when you can see more clearly.

6. Contrast

The contrast of a mobile phone refers to the difference in brightness of the picture. The higher the contrast, the more layers and details the mobile phone picture has.

The above are the 6 common screen parameters of mobile phone screens. Each brand of mobile phone screen has its own advantages and disadvantages. Jiushu believes that the most important thing is whether it meets our needs. If you work outdoors for a long time and frequently use your mobile phone outdoors, then a mobile phone with high peak brightness is naturally good for you; if you are a mobile game enthusiast, then the sampling rate and refresh rate of the mobile phone are more important to you; if you like to chase dramas and have certain requirements for the clarity of the video, then the resolution of the mobile phone must at least match the video resolution of the drama you chase.