There are many wallpapers, and the pictures in them are not copyrighted. Inquiring about relevant public information shows that wallpaper is an application for downloading high-definition wallpaper, in which pictures may come from different channels, and some pictures may have copyright problems. Copyrighted pictures can only be used if the wallpaper is allowed by law. A disclaimer has been publicly stated, indicating that the content of pictures uploaded by users cannot be controlled, so there is no guarantee that these pictures will not cause any copyright problems. According to the official introduction of wallpaper, most of the wallpaper of this application is collected through the internet, and its source may come from unreliable channels, so there may be copyright problems.