What is the difference between inline LED display and surface-mounted LED display?
What is the difference between inline LED display and surface-mounted LED display?
The development history of LED display has been more than ten years. Now the general LED display, according to industry standards, the mainstream is divided into direct insertion LED display and table paste LED display. The LED display is spliced from one LED module to another. Whether it is inserted or table sticker, the final is spliced into a surface to display the broadcast content. Structurally speaking, each LED module is composed of four parts: lamp face, PCB circuit board, IC face, bottom shell mask. So in the end, what is the difference between the direct insertion LED display and table paste LED display? The author from the following three aspects to make a comparison.
First, raw materials
First of all, the difference between the lamp beads. The lamp beads used in straight LED display is mainly irregular long round lamp beads, the main models have f3/f5/346 and other models, its packaging process is mature, waterproof performance is good, light-emitting surface for the whole light-emitting surface.
Table paste LED lamp beads are mainly cubic or rectangular shape, encapsulation process for the chip filling into the metal bracket, and then potted dry and become, specification 3535/3528/2835/2727 (2525)/2121/1921/1515/1010 and so on a variety of types, its encapsulation process has been mature, the light-emitting surface of a single front-emitting surface. Second is the difference between the PCB circuit board. Table sticker LED display PCB circuit board used for welding plate surface, used to weld table sticker LED lamp bead foot. And straight into the PCB circuit board used in the LED module, in the relevant pad position is empty, stay in order to straight into the LED lamp beads inserted into the welding. Finally, part of the direct insert LED module used in the simple cattle power supply base and table sticker module is different, is also a direct insertion type rather than table sticker type.
Second, the process
In terms of production process, the production process of inline LED display module is: printing IC surface solder paste on the PCB → table sticker IC → reflow soldering for warming welding → inline LED lamp beads inserted into the corresponding PCB board holes → tin spraying → reflow soldering for warming welding → power supply seat and simple cattle after welding processing → test aging maintenance → outdoor LED module for spraying three anti-paint and potting (). Indoor LED module can be omitted this step) → set on the bottom shell mask lock screws → test aging → packing shipment.
Table paste LED display module production process is: in the PCB printing IC surface solder paste → table paste IC (including simple cattle and power supply seat) → reflow soldering temperature welding → PCB printing lamp surface solder paste → table paste LED lamp beads → reflow soldering temperature welding of the lamp surface → test and aging maintenance → outdoor LED module spraying three anti-painting and filling (indoor LED module can be omitted this step) Set on the bottom shell mask lock screws → test aging → packing shipment.
In terms of process, table sticker LED display module production process to be more simple.
Application
Direct insert LED lamp beads because of its structure of its own limitations, so that the direct insert LED module is mainly used in P10, P16, P20 and other spacing, spacing a little smaller P8, the smallest spacing to P6. Because of its good waterproof performance, mainly used in outdoor products. P1.56/P1.25/P1.0 and so on all categories of multiple spacing applications, everything.
Four, performance
First of all, the brightness comparison, the same pitch products, such as direct P10 outdoor full-color LED display and table sticker P10 outdoor full-color LED display, direct brightness is generally greater than the table sticker.
Second is the appearance comparison. As I said before, straight insert lamp beads are long round lamp beads, originally display surface is not flat, its light for multi-faceted light-emitting, so ultimately in the appearance, straight insert LED display surface is not as smooth as the surface of the table pasted LED display surface. The effect of lighting, in close proximity to see, direct insertion is not as good as the surface of the picture display effect smooth and silky.
Finally, the service life comparison. Plug-in lamp bead lamp chip is generally larger than the table sticker lamp bead chip, the sealing of the package compared to the table sticker lamp bead is more complete and uniform (plug-in lamp bead for a uniform arc, table sticker lamp bead for a cube 6 sides), from the reality of the performance, plug-in LED display than the table sticker LED display high brightness, and longer service life. Of course, the same spacing applications, inline LED display is also much more expensive than the surface-mounted LED display. On the contrary, the table sticker LED display is more and more widely used, the market share is more and more big, also with its application of more spacing needs, the price continues to go down.
First, raw materials
First of all, the difference between the lamp beads. The lamp beads used in straight LED display is mainly irregular long round lamp beads, the main models have f3/f5/346 and other models, its packaging process is mature, waterproof performance is good, light-emitting surface for the whole light-emitting surface.
Table paste LED lamp beads are mainly cubic or rectangular shape, encapsulation process for the chip filling into the metal bracket, and then potted dry and become, specification 3535/3528/2835/2727 (2525)/2121/1921/1515/1010 and so on a variety of types, its encapsulation process has been mature, the light-emitting surface of a single front-emitting surface. Second is the difference between the PCB circuit board. Table sticker LED display PCB circuit board used for welding plate surface, used to weld table sticker LED lamp bead foot. And straight into the PCB circuit board used in the LED module, in the relevant pad position is empty, stay in order to straight into the LED lamp beads inserted into the welding. Finally, part of the direct insert LED module used in the simple cattle power supply base and table sticker module is different, is also a direct insertion type rather than table sticker type.
Second, the process
In terms of production process, the production process of inline LED display module is: printing IC surface solder paste on the PCB → table sticker IC → reflow soldering for warming welding → inline LED lamp beads inserted into the corresponding PCB board holes → tin spraying → reflow soldering for warming welding → power supply seat and simple cattle after welding processing → test aging maintenance → outdoor LED module for spraying three anti-paint and potting (). Indoor LED module can be omitted this step) → set on the bottom shell mask lock screws → test aging → packing shipment.
Table paste LED display module production process is: in the PCB printing IC surface solder paste → table paste IC (including simple cattle and power supply seat) → reflow soldering temperature welding → PCB printing lamp surface solder paste → table paste LED lamp beads → reflow soldering temperature welding of the lamp surface → test and aging maintenance → outdoor LED module spraying three anti-painting and filling (indoor LED module can be omitted this step) Set on the bottom shell mask lock screws → test aging → packing shipment.
In terms of process, table sticker LED display module production process to be more simple.
Application
Direct insert LED lamp beads because of its structure of its own limitations, so that the direct insert LED module is mainly used in P10, P16, P20 and other spacing, spacing a little smaller P8, the smallest spacing to P6. Because of its good waterproof performance, mainly used in outdoor products. P1.56/P1.25/P1.0 and so on all categories of multiple spacing applications, everything.
Four, performance
First of all, the brightness comparison, the same pitch products, such as direct P10 outdoor full-color LED display and table sticker P10 outdoor full-color LED display, direct brightness is generally greater than the table sticker.
Second is the appearance comparison. As I said before, straight insert lamp beads are long round lamp beads, originally display surface is not flat, its light for multi-faceted light-emitting, so ultimately in the appearance, straight insert LED display surface is not as smooth as the surface of the table pasted LED display surface. The effect of lighting, in close proximity to see, direct insertion is not as good as the surface of the picture display effect smooth and silky.
Finally, the service life comparison. Plug-in lamp bead lamp chip is generally larger than the table sticker lamp bead chip, the sealing of the package compared to the table sticker lamp bead is more complete and uniform (plug-in lamp bead for a uniform arc, table sticker lamp bead for a cube 6 sides), from the reality of the performance, plug-in LED display than the table sticker LED display high brightness, and longer service life. Of course, the same spacing applications, inline LED display is also much more expensive than the surface-mounted LED display. On the contrary, the table sticker LED display is more and more widely used, the market share is more and more big, also with its application of more spacing needs, the price continues to go down.