First, LED brightness and display visual angle
Second, the reduction of color display
The reduction of color refers to the unity of the real color display, both the display color and the color of the playback source to maintain a high degree of consistency, so as to ensure the real image sense of effect.
Third, the flatness of the display and a colorless block
Because the surface smoothness of the display directly related to the effect of the screen texture and display image will not occur distorted phenomenon, so we adjust the display flatness
Be careful. Color block refers to the display of adjacent modules between the obvious color difference, resulting in color block phenomenon. The main cause of this phenomenon is the control system .The result of poor quality, low gray level and lower scanning frequency.
The dead point phenomenon and mosaic problem
Dead-point phenomenon refers to the appearance of steady or often black single points, the cause of dead dead is mainly caused by the quality of the tube core. Mosaic problem refers to the display
The current steady or often black small four blocks, that is, modular necrosis phenomenon, the main cause of this phenomenon is the use of the display screen connector quality.

