[b]Brightness and viewing angle[/b]

The brightness of [b][url=http://www.visslighting.com/]LED display lighting[/url][/b] must be high to ensure the normal operation of the display, or because of the brightness is too low and can not see the displayed image. Brightness led mainly by the size of the die is good or bad decision. How much screen size of the viewing audience angle directly depends, therefore the bigger the better. Mainly by the size of the viewing angle of the die package to decide.
[b]Color reduction[/b]

Reduction of color refers to the color LED display for color reduction, both display height should be consistent with the source of the color, so as to ensure realistic images.
[b]White balance[/b]

White balance is one of the important indicators of the LED display. Red, green and blue color science taken in the ratio of 1: 4.6: 0.16 pure white will be shown, if the actual proportion of any deviation occurs the white balance bias, usually pay attention to whether there are bluish white, yellow green phenomenon. White balance is mainly determined by the quality of the display control system, die on the reduction of color also have an impact.
[b]Flatness[/b]

Surface flatness of the display to within ± 1mm, to ensure that the image of the [url=http://www.visslighting.com/en-us/product/24.html]full color LED display[/url] is not distorted, partial raised or recessed will lead to the display viewing angle of dead ends. The quality of flatness is determined mainly by the production process.
Mosaic refers to appears on the LED display lit or normally black small four-square, both modules necrosis, connector quality mainly used for the screen, but off. Dead point is steady appear on the display or normally black single point, how much good or bad from the die to determine the dead point. Color refers to the existence of obvious color difference between adjacent modules, transition colors in module units, which causes the color phenomenon is mainly the poor by the control system, the gray level is not high, low scanning frequency caused.