Huawei Mate20 Pro achieved quite good sales results after it was released in China, but some users soon found that the display has a color cast green. Although this situation will appear in a low-bright gray background, it still appears. In the post bar and Weibo caused an uproar. So, why does Huawei Mate 20 Pro have a problem with the green color of the display? Now, some professionals have given their own opinions, indicating that it should be a problem of production quality. The screen color is green, but it can be solved from the software color correction.
Caused by quality control
Huawei Mate20 Pro soon fell into the vortex of the green issue of the display, including Huawei's official forum 'Floral Club' Mate20 series, stickers, etc. There are many users posting feedback, there is a green screen display, even microblogging V The Mate 20 Pro that has dried out of itself indicates that such a defect has occurred. The problems encountered by these users are very similar. This is when the Huawei Mate20 Pro turns on the black or gray background, the green edge of the display will be very obvious, especially It is more serious when used at night.
Why does Huawei Mate 20Pro have such a 'green screen door' defect? Some insiders said after the Samsung OLED experts that Samsung had such a problem in the early stage of OLED display production because of the OLED display. At the time of production, the laser engraving process differentiated the MOSFET processing, resulting in a color cast, sometimes showing a green color, and sometimes a red color, but these problems were solved a few years ago. Therefore, the expert's opinion is this. The problem can be summarized as the OLED production quality problem of Huawei Mate20 Pro leads to screen color cast. But it is still unclear whether it can be solved from software color correction.
How to identify LG or BOE
It is worth noting that from the current user feedback, Huawei Mate 20 Pro with LGD panel is relatively easy to appear green, so how to identify whether your mobile phone is LG or BOE display, now it is A lot of users pay attention to the focus. According to the experience shared by users in the post, you can adjust your mobile phone to a white background, and increase the brightness. Then get a drop of water to the top of the display, and then take pictures with other mobile phones. If the two greens are together, then there is a red and a blue one is BOE. And if these blocks are mixed together, the order is LG.
There is also a more intuitive way. Open the settings, click on the system, then press the version information, press Developer to open the developer mode, select Send report, send the full report, after a while, the notification bar will prompt the error report to be sent, select the sharing report. Send it via Bluetooth or email. Get a decompression package, find the largest notebook after decompression, search hwFingerprint, there is a LYA- after the equal sign, followed by the screen manufacturer, boe is BOE, LG is Korea Lejin.
In addition, Huawei Mate 20Pro mixes LG's display regardless of 6+128GB or 8+128GB version, but BOE's display is relatively less used in the 6+128GB version. And even if there is a problem with the green screen, usually It will be more obvious to take pictures, but the actual visual observation is not so easy to be noticed. The last thing to say is that although the 'Green Screen Door' defect of Huawei Mate 20 Pro will only appear under certain conditions. However, Huawei officials have not yet responded to this issue, and there is no official solution for the time being. So if users find that there is a problem with their mobile phone display, experts recommend applying for a replacement or return at the purchase channel as soon as possible.
