Today, LED display screen has entered thousands of households, and the streets are full of beautiful things. Today, I’d like to share with you the most complete explanation of the terms of LED display screen in history, so that you can instantly change from LED display screen to understand screen emperor!
1. What is led?
LED is the abbreviation of light-emitting diode. Led in the display industry refers to the LED that can emit visible wave band.
2. What are pixels?
The smallest luminous unit of LED display screen has the same meaning as the pixel in ordinary computer display.
3. What is the pixel distance?
The smaller the center distance between two adjacent pixels, the shorter the visual distance. Industry insiders usually referred to as p to indicate the distance between points.
4. What is pixel density?
Also known as dot matrix density, usually refers to the number of pixels per square meter of display.
5. What is led display module?
The smallest unit composed of several display pixels, which is structurally independent and can form LED display screen. Typical ones are 8 * 8, 8 * 7, etc.
6. What is dip?
Dip is the abbreviation of doublein-linepackage, which is used for in-line assembly.
7. What is SMT? What is SMD?
SMT is the abbreviation of surface mounted technology, which is the most popular technology and process in the electronic assembly industry; SMD is the abbreviation of surface mounted device.
8. What is led display module?
It is a basic unit with circuit and installation structure, display function and display function.
9. What is led display?
Through a certain control mode, the display screen is composed of LED device array.
10. What is the plug-in module? What are the advantages and disadvantages?
It refers to the dip packaged lamp that passes the lamp foot through the PCB board and fills the lamp hole with tin by welding. The module made by this process is the plug-in lamp module, which has the advantages of high brightness, good heat dissipation and low pixel density.
11: What is a surface mount module? What are the advantages and disadvantages?
SMT is also called SMT. The SMT packaged lamp is welded on the surface of PCB board by welding process, and the lamp foot does not need to pass through the PCB board. The module made by this process is called SMT module. Its advantages are: good display effect, high pixel density, and suitable for indoor viewing. Its disadvantages are that the brightness is not high enough, and the heat dissipation of the lamp tube is not good enough.
12. What is sub surface mount module? What are the advantages and disadvantages?
Sub surface sticker is a product between dip and SMT. The packaging surface of LED lamp is the same as that of SMT, but its positive and negative pins are the same as that of dip. They are welded through PCB during production. Its advantages are high brightness and good display effect. Its disadvantages are complex process and difficult maintenance;
13. What is three in one? What are its advantages and disadvantages?
Refers to the RGB three different colors of LED chip packaging SMT lights in accordance with a certain distance vertically side by side, this not only has all the advantages of three in one, but also solves all the disadvantages of three in one: complex process, difficult maintenance.
14. What is three and one?
RGB is three kinds of independent packaging of SMT lights in accordance with a certain distance vertical side by side, this not only has the advantages of three in one, but also solves the disadvantages of three in one.
15. What is dual primary color, pseudo color and full color display?
Different displays can be formed by different color LEDs. The dual primary color is composed of red, green or yellow green, the pseudo color is composed of red, yellow green and blue, and the full color is composed of red, pure green and pure blue.
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