Hello, in the past, generally speaking, the quality of JDI screens was better than that of domestic screens, while Tianma screens were not as good as JDI screens. However, as the quality of domestic screens continues to improve, it has caught up. In addition, the system tuning of mobile phone manufacturers also affects the actual display effect of the screen. In addition, JDI screens are also graded. Low-end JDI screens are definitely not as good as high-end Tianma screens. In this way, it is not difficult to understand that the effect of JDI screen is not as good as Tianma screen.