led screen technology

Posted On 27 Jun 2022


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LED display screen types

LED displays screen come in a wide range of variations. Whether they are used indoors or outdoors, LED display goods can be categorised based on their applications.

Additionally, the various LED package types can be used to classify LED displays.

The four most popular types of LED packages on the market—DIP, SMD, GOB, and COB—will be examined in this chapter.

What you should know is as follows.

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Dual in-line package or DIP LED One of the earliest LED packages available is LED. The DIP LED display is made using conventional LED bulbs rather than LED chips.

If you examine the surface of the LED display module carefully, you will notice that the led display screen is neatly lined with protruding LED bulbs in three different colours (red, green, and blue).

The basis of an LED colour display is made up of red, green, and blue LEDs. Why, then, RGB?


The primary hues are red, green, and blue. They are hues that can be combined to produce any hue.

The entire white hue is created by mixing the colours red, blue, and green.

any colour can be easily made by altering how each LED is lighted when the RGB colour model is used in the DIP LED display technology.

For instance, we are aware that the colour magenta is created when red and blue are combined. Only the blue and red LED screen will illuminate in order to display a magenta pixel.

How would we go about creating a pure white colour?

To produce white light, all three LED screens will illuminate fully.

A red LED screen , a green LED screen, and a blue LED screen  make up a pixel. A sub-pixel is the name given to each LED within a pixel.

A DIP LED display's major benefit is that it can create a brighter image than other LED displays.

DIP LED displays are therefore frequently employed in outdoor applications. The brighter image can aid in keeping the digital display visible even in intense sunshine.

among the items that use DIP LED packages are digital billboards and outdoor LED panels.

You have no control over how viewers should view the content when an LED display is installed in indoor locations like shopping malls and building lobbies.

Different viewers may approach you from different angles. Additionally, they are allowed to select the viewing angles they want.

This means that no viewer will necessarily receive the best viewing experience. The reduced visual quality can drive away your viewers if they are not viewing the content at the recommended viewing angle.

When utilised as a digital billboard, a DIP LED display's restricted viewing angle is not a problem.

This is so that drivers and passengers of moving vehicles may see digital billboards. The direction that faces right at the digital billboard is the only direction that the road traffic ever comes from.


Surface-mounted device is referred to as SMD. SMD LED displays employ LED chips rather than LED bulbs.

An LED chip is created by combining red, green, and blue LEDs into a single unit.

Compared to an LED bulb, an LED chip is smaller. As a result, a display panel can now accommodate more LED chips. A high-resolution display is possible when the pixel density is high.

In the global LED market in 2021, SMD LED will hold the biggest market share. Numerous items, including indoor LED displays, cellphones, TVs, and lighting equipment, make extensive use of the LED packaging process.

The most widely used type of LED display on the market is SMD LED.

SMD LED displays have a broader viewing angle than DIP LED displays. It is therefore frequently employed in a variety of interior applications.


Glue-on-board is referred to as GOB. Years ago, when GOB LED display first appeared on the market, it generated buzz.

Industry participants and customers were thrilled. They had high hopes for what the GOB LED display could do for the market.

However, several key figures in the sector hold opposing views. They acknowledge that the GOB LED display has some enhanced features that might be useful for some applications, but they do not consider it to be "The Next Big Thing."

The GOB LED display is simply an improved SMD LED display. Yet why?

First, compared to SMD LED displays, the packing method used is not visibly different.

Second, the visual quality does not seem to have improved.

A SMD LED display with superior protection features is the GOB LED display. GOB LED displays are, in a nutshell, "more durable versions" of SMD LED displays.

Transparent glue protection is used in the GOB LED display. The LED display's surface is coated with transparent adhesive. A shield of defence against fluids, dust, and collision is provided by the adhesive for the LED display.

Additionally, the adhesive may help with greater heat dissipation. It aids in preserving a reasonable range of working temperatures and so prevents a reduction in lifespan.

GOB LED is frequently utilised for transparent and fine-pitch LED displays. To reach better resolutions, both LED screens use very tiny LEDs. Damage is more likely to occur to smaller LEDs.

It can reduce the danger of collision-related damage by providing a layer of adhesive protection.

The use of LED screens for leasing purposes is another frequent application. This is due to the continual moving, setting up, taking apart, and transportation of LED screens for a rental business. Collisions can occasionally not be avoided.

GOB LED packages can aid in lowering maintenance expenses resulting from collision and damage.


One of the most recent developments in the LED display industry is the COB, or chip-on-board, display.

SMD LEDs include three light-emitting diodes per chip, whereas COB LEDs can contain nine or more diodes.

A COB LED chip only has a circuit and two connections, regardless of how many diodes are attached to it. This substantially lowers the failure rate.

The major benefit of the COB LED display is its high screen brightness while using less power. Of all the several varieties of LED displays, COB LED displays have the highest power efficiency.

In many applications for LED screens with finer pixel pitches, COB LED screen technology is used. This is due to how few COB LEDs are.

In comparison to a DIP LED display panel of the same size, a COB LED display panel can fit 38 times more LEDs.

A higher LED density results in a higher pixel density, which results in a higher video resolution. Fine-pitch LED screens, mini LED screens, and micro LED screens are all frequently produced using COB LED technology.

In conclusion, COB LED displays, at least as of right now, provide the highest video resolution with the

LED package comparison

The top-tier LED display does not exist.

Instead, you should search for the best LED display screen. You must seek out an LED display that is ideal for your industry and need.

The four different types of LED displays screen that we have already studied are contrasted in the table below.


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