What is SMD LED module? What are the advantages and disadvantages?
SMD is also called SMT, the SMT package of the lamp through the welding process welding in the PCB board surface, the lamp does not have to go through the PCB board, made by this process is called the module module;
Common LED display problems :
Advantages are: large viewing angle, showing the image soft, high pixel density, suitable for indoor viewing;
The disadvantage is that the brightness is not high enough, the lamp itself is not good enough heat dissipation.
2: what is 3 in 1? What are the advantages and disadvantages?
Refers to the R, G, B three different colors of the LED chip package in the same colloid;
Advantages are: production is simple, showing good results;
Disadvantages are: spectral separation difficult, high cost.
3: What is the double color, pseudo color, full color display?
Through the different colors of light-emitting diodes can be composed of different display, double-color is composed of red, green or yellow and green colors, pseudo-color is red, yellow, blue, three different colors, full color is red , Pure green, pure blue three different colors;
4: What is the luminous brightness?
led display unit area issued by the light intensity, the unit is cd / ㎡, simply that is a square meter display light intensity.
5: What is the brightness level?
The total number of manual or auto-adjusted stages between the lowest and the highest brightness.
6: What is grayscale?
At the same brightness level, the display from the darkest to the brightest between the technical processing level.
7: What is the maximum brightness?
In a certain ambient illumination, LED display a base color in the maximum brightness and maximum gray level.