Choose the method of high quality LED display
A good quality of LED display for human visual perception and low-quality products are completely incomparable, choose a high quality LED display first look at its display effect, by looking at the display images will have to learn about its quality fit and unfit quality, through the contrast can be obviously divided out, this is a rough idea of your choice, the choice of more differentiation is to look at the LED white balance effect, chromatology on red, green and blue color for the proportion of 1:4. Lost. 6 shows the pure white, if slightly deviation can handle a deviation will appear, through the more easy to identify.
The brightness of the LED display and visual Angle is an important factor affecting the display, also can adjust brightness, in terms of visual Angle is unable to adjust, we all know that some of the LED display after converting certain Angle will can't see the picture, the viewing Angle is decided.
Finally, identify the high quality LED display surface roughness within the plus or minus 1 mm, images will not be distorted, if uneven visual Angle corner will appear, affect the normal viewing.