Joke Collection Website - Mood Talk - I just bought a handwriting learning machine and used it several times. There are colored bars on the screen. How to eliminate this trace?

I just bought a handwriting learning machine and used it several times. There are colored bars on the screen. How to eliminate this trace?

If I guess correctly, it should be HJX or other miscellaneous brands!

There is a movie on the screen. Row harder, and there will be traces! Under the light source of the display screen, it will become a color stripe!

There is no way to solve this problem! Some films can be torn, others can't. It is recommended to see it after sale!