Differences between DIP and SMD packages for outdoor LED displays

Differences between DIP and SMD packages for outdoor LED displays

In the outdoor LED display production process, packaging is very important.

At present, as the main components of LED display LED lights (light-emitting diodes), there are two main packaging methods, that is, DIP and SMD.

Generally speaking, DIP LED is mainly used in outdoor displays, while SMD LED is mainly used in indoor LED large screens.

What else are they different from each other? What are the advantages and disadvantages of these two packaging methods? Hunan Legida Technology Co., Ltd. will answer the following questions for you:

What is the role of LED display package?

The external lead is connected to the electrode of the LED display chip, while protecting the LED displays chip, improving the luminous efficiency and heat dissipation environment, and thus improving the life of the LED.


LED display in line DIP and package SMD comparison effect

I. DIP package

DIP package, is the abbreviation of dual inline-pin package, commonly known as plug-in lamp type.

The package of DIP LED is potting. The process of potting is to first inject liquid epoxy resin into the LED molding cavity, and then insert the pressure welded LED bracket.

Putting it in the oven to let the epoxy resin cure, and then the LED is detached from the mold cavity and formed.

Due to the relatively simple manufacturing process and low cost, it has a high market share. DIP volume is large, can be used artificial plug-in or AI machine work, because DIP LED brightness is high, easy to do waterproof treatment.

so it is generally used to do outdoor LED display, after wave soldering to produce DIP semi-outdoor module and outdoor waterproof module.

However, subject to the influence of the diameter of the lamp bead, it can only do P6 at present. Other P5, P4 and even higher density outdoor LED display, but can not be made.

The protection performance of in-line insertion is good. Environmental protection, so it is only suitable for outdoor, and at present, outdoor P10-P20 has a larger market share.

2.SMD encapsulation

SMD package, meaning: surface mount device, it is one of the SMT components. Surface mount components were introduced about twenty years ago and ushered in a new era.

For a long time it was thought that all pin components could eventually be packaged in SMD. SMD technology is widely used in LED outdoor display.

We often say that the amount of labeling three in one, in fact, is a kind of SMD technology, refers to the RGB three different colors of the LED chip packaging SMT lights in accordance with a certain spacing package in the same colloidal.

The advantages of the labeling 3-in-1 outdoor full-color LED display are as follows:

the viewing Angle of the whole screen is relatively large, and the surface can do light diffuse reflection treatment, the resulting effect is not granular, high color saturation, and good color uniformity.

The three-in-one overall flatness is easier to control and has always been the standard technology used in high-definition outdoor LED displays.

With the continuous improvement of technology development and production process in recent years, SMD has developed rapidly, and the cost has been reduced a lot, which is the mainstream product of LED indoor display.

Moreover, it has developed rapidly to the outdoor market, but brightness and waterproof and moisture-proof have always been difficult to overcome. I believe that the whole industry continues to develop, development is the direction of the table.

3.LED display directly inserted DIP also has quite good advantages.

High brightness and low power consumption, under the direct light of 10,000 brightness, it still presents high performance display, low power consumption performance, and good heat dissipation performance. Cost savings for our customers.

                                                                                                   brightness contrast

brightness contrast

Hunan Legida LED display in-line (dual inline-pin package), designed outdoor advertising LED display, with ultra-light ultra-thin box design, box thickness is only 100MM, weight is only 30KG. Save transportation costs and engineering installation costs for our customers.


4. The outdoor LED display module with SMD package is lighter than the DIP LED module.

Since SMD LED is attached to the surface of the circuit board, suitable for SMT processing, reflow soldering, well solve the problems of brightness, viewing Angle, flatness, reliability, consistency and so on, the use of lighter PCB board and reflector material, improved to remove the DIP LED heavier carbon steel material pin.

so that the display reflector needs to be filled with less epoxy resin, The aim is to reduce size and weight.

In this way, surface-mount leds can easily reduce the weight of the product by half, ultimately making the application more perfect.

5. SMD LED generally use indoor LED large screen light source

With the technical breakthrough, SMD LED brightness has been greatly improved, waterproof treatment can also be well solved, therefore, SMD LED used in outdoor LED display is also more and more.

However, the brightness and life of SMD outdoor display is not as high as that of DIP outdoor display.

6. How to choose DIP LED display or SMD LED display.

This needs to be selected according to the LED display scene. For example, indoor use environment, it is best to choose SMD LED display.

If it is an outdoor environment, and the brightness is required to be very high and energy saving, choose the DIP LED display.

If it is the same outdoor use environment, the brightness requirements are not very high, but the clarity of the display has higher requirements, you can choose SMD outdoor display, because the spacing of SMD outdoor display can be smaller.

The common models are outdoor P2, outdoor P3, outdoor P4, outdoor P 10. More room for model selection.

7. Hunan Legida Technology provides you with suitable DIP and SMD LED display solutions.



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