Huawei Mate 20Pro was exposed to the “Green Screen Door”

Huawei Mate 20Pro was exposed to the "Green Screen Door"

Later, Huawei Mate 20Pro was exposed to the “Green Screen Door” incident because of the LG screen. Fortunately, Huawei’s solution was simple and rude, but extremely effective. As long as the green screen was replaced, it could be replaced for free until satisfied. Unexpectedly, the iPhone 12 series also had a green screen, so people in the industry speculated that it might be because of the LG screen.

The author has consulted relevant industry insiders and learned that if OLED panels use Japanese light-emitting materials, most mobile phones will not have a green screen. But LG is likely to use cheap E series materials to produce OLED panels, and it is very likely that e3 materials have caused the screen to overturn.

Finally, about whether the LG OLED panel that netizens care about is used on a TV set, will there be a green screen. The author has consulted relevant information and learned that OLED panels have different pixel lifespans: blue life is short, red life is average, and green is the longest. Greenish screens mostly appear on OLED screens, especially curved OLED screens. In the case of optical refraction, some color gradients will appear on the edges of the curved screen, which is normal. Like mobile phone products, if there is a large area of ​​green, it is a quality problem. Due to the large size of OLED TVs, it is impossible for people to look at it so carefully, so there is no feedback from users about the “green screen” situation.

Earlier, LG’s OLED panel business has been losing money due to various reasons. OLED panels are difficult to survive, leading to higher costs, while the cost of LCD panels has dropped rapidly after Chinese panel companies joined, limiting the popularity of OLED TVs. After the vigorous promotion of LG, Sony, Skyworth and other brands, the high-end technology image of OLED is now deeply rooted in the hearts of the people, and even Xiaomi has begun to deploy OLED TVs to increase the overall brand image of Xiaomi TVs and impact the mid-to-high-end market. As OLED large-size panel technology matures, OLED TV prices are also adjusted accordingly, and OLED TVs have shown rapid growth in the entire market.

Although LG’s view of large-size OLED panel technology has overcome many difficulties, the development of technology has become more mature. LG also established a 8.5-generation OLED panel line in Guangzhou, my country, and officially put it into production. But there is still a problem that occasionally “troubles” it, and that is the “burning screen” problem. At present, many netizens who have purchased OLED TVs have not yet revealed the “green screen” problem of OLED TVs, but OLED panels have been used for a long time, and the phenomenon of “burning screen” is likely to occur.


Due to the different attenuation life of the three materials, red, green and blue, the OLED panel is prone to burn-in. The service life of small-size display products such as mobile phones is generally about 2 years, and the service life of TV sets is often as long as 8-10 years, so OLED TVs may burn screens in the future.

Nowadays, the iPhone 12 panel has a green screen problem. If it is really an LG panel problem, this will definitely be a new blow to it. In the future, it is questionable whether it can still supply small and medium-sized OLED panels to Apple.