However, most of the official solutions now are to replace the mobile phone directly, but this is only a temporary solution. To solve this problem, it is necessary to irradiate the mobile phone with professional ultraviolet instruments, or directly expose the mobile phone to the sun for testing. But this method is too stupid and easy to damage the mobile phone. After all, high temperature is easy to make mobile phones explode, and ultraviolet rays do great harm to electronic products, which is an undesirable way. In Bian Xiao's view, this method is not very desirable, and there are great risks, because mobile phones are not resistant to high temperatures.
Screen flashing of yin and yang is a common problem of OPPOR 17, and OPPO shirks its responsibility for various reasons after sale. The phone doesn't knock, and this quality problem will appear when it is cold. This shows that OPPOR 17 has this quality problem at the factory. What is a screen of yin and yang? In fact, it is caused by uneven display color on the screen of computer or mobile phone. It's hard to find it when we use it. When the screen shows a pure white background, we can obviously find that some areas in the screen are dark yellow. In fact, this phenomenon is quite common, and besides the organic light-emitting diode screen whose pixels can emit light independently, screens made of other materials will appear more or less yin and yang, especially those made of JDI, and yellowing is very common. The appearance of yin-yang screen is caused by the limitation of technology and design of mobile phone screen. For a mobile phone with LCD screen that can't emit light by itself, in order not to leak light, it is necessary to put a baffle on the edge of the mobile phone screen (below the screen). However, the narrow design of the current mobile phone frame, once the shielding is not ideal, is prone to the phenomenon of dark bottom screen, resulting in yin and yang screen. The appearance of yin-yang screen on mobile phone is also related to screen bonding technology. Most screens are covered by multiple layers, and each layer is directly pressed together by hard bonding. Insufficient accuracy will cause many problems, such as screen bubbles. The screen is laminated with glue, and there will be some yellowing. Even if the glue is cured and the curing time is not well controlled, there will be obvious yin and yang screens.