Four Methods
First, LED brightness and display screen viewing angle
LED lights in the indoor environment, the minimum standards to be maintained at 800cd / m2-900cd / m2 between, and in the outdoor environment must be maintained at 1400cd / m2 or more, so as to protect
The normal display of the screen display image, if not meet these standards, will be because the brightness is too low to see the displayed image. The size of the viewing angle is the display
Screen how many viewers can see the scope, so the bigger the better. But the size of the viewing angle is mainly determined by the way the package is encapsulated, so when we encapsulate the die
Be careful to consider the problem of good viewing angle.
Second, the display color of the reduction
Color reverberation refers to the display of the true color of the unity, both the display screen to play with the color of the source to maintain a high degree of consistency, so as to ensure that the image of the real sense effect.
Third, the display flatness and whether the color block
Because the display surface flatness is directly related to the effect of the screen texture and display images will not be distorted when the phenomenon, so we adjust the flatness of the display when
Must be careful. Color block refers to the display adjacent modules between the obvious color difference, causing color phenomenon. The cause of this phenomenon is mainly due to the control system
Quality is poor, gray level is not high and the scanning frequency caused by low. The same time as
Fourth, the phenomenon of dead spots and mosaic problems
Death point phenomenon refers to the display appears on the bright or often black single point, the cause of the dead point is mainly caused by the die is good or bad. The mosaic problem is the display on the screen
Now the bright or often black small square box, that is, die necrosis, causing this phenomenon is the main reason for the display screen used by the quality of the connector, but off.