Giant LED screens

Giant LED screens are commonly manufactured in a modular way (several modules to make up the complete screen), in order to facilitate installation, transportation and maintenance. A Module or Cabinet has certain characteristics that are added when assembling several modules or cabinets. The main characteristics of LED screens are: the distance between pixels (pixel pitch; it is measured in millimeters), the type of LEDs whether DIP (Direct In-line Package*) or SMD (Surface Mounted Diode*), the resolution (depending on the number of pixels and the technology implemented), the maximum power consumption (watts), the IP protection (resistance to ambient conditions) and the quality of the LEDs (there are many types and brands) that will determine the life, brightness, sharpness, contrast and reliability of our screen.

Giant outdoor LED screens have to be protected against damage caused by the environment: such as heat/cold, dust, wind and rain. Protection is indicated with a grade for the Front and a grade for the back (IP Protection Grade). A screen with an IP65/IP47 rating, for example, is protected on the front against dust with grade 6 and against rain with grade 5, on the back it has protection with a grade of 4 against dust and grade 7 against rain. Its resolution (directly related to image quality) is measured through the distance between its pixels, usually measured in millimeters. In the case of real pixel type screens (one red LED, one blue and one green), in which three LEDs make up each pixel, the number of pixels covered in both the horizontal and vertical length will determine the quality of the screen; example: pixel pitch of 10 mm = 1 pixel every 10 mm, so in 100 mm of horizontal or vertical distance there would be 10 pixels. In the same way, with "virtual pixel technology" type screens (two red LEDs, one blue and one green), where four LEDs are found to form a pixel. This virtual pixel technology creates a greater pixel density on the LED screen, since pixels between pixel centers are perceived (to human optics). With which you can obtain virtual pixels (pixels that do not really exist, but are created between the centers of real pixels).

Monochrome, two-color or tricolor screens

Monochrome, bicolor, or tricolor LED displays are displays dedicated to displaying regular alphanumeric characters. They can also display graphics, but to a limited extent. These screens can be made up of single-color, bi-color or tri-color LEDs, with which texts, numbers and some low-resolution graphics can be displayed. They can be implemented indoors or outdoors.

For outdoors, these screens have super bright LEDs for adequate readability in daylight.

Distance between pixels (pitch)

The distance between pixels, also known as the English word pixel pitch, is the measure of the distance between the centers of the pixels of an LED screen. The higher the pixel pitch, the greater the pixel separation, whether they are RGB (red, green and blue) pixels or single-color, bi-color or tri-color pixels. The pixel pitch also influences the viewing distance, that is, the smaller the pixel pitch, the closer the screen can be viewed with good quality. This does not apply to monochrome, two-color or tri-color screens whose main function is to display low-resolution text, numbers or graphics.

It is suggested that full-color LED screens have at least 49,000 total pixels, but the user must opt ​​for a greater or lesser number of pixels depending on their area, case or need. Since there may be cases in which the user does not require much resolution, such as in the case of perimeter screens at field level in soccer stadiums that only require displaying texts or logos at very distant distances from which spectators could see them.

The following is suggested for a good resolution:

These examples would be when viewing the screen at ground level, if the screen is given a height, the minimum viewing distance would be closer.

Modular technology

The greatest advantage that an electronic LED screen composed of modules with LED pixels has is that it can be formed or constructed without any dimension limitation. It can be very small or completely giant or mega giant. There is no limit to these screens because they are modular. And therefore, being modular, there are no spaces between the union of modules or LED cabinets, these screens are governed based on the size of the module that makes up the pixels and depending on the pixel pitch (each manufacturer can have its own module size or its specific module in terms of length and height dimension), it may be the case that a manufacturer has modules manufactured in a specific dimension to prevent the competition from replacing it, since each module is manufactured in series and using a specific mold. These modules are found in all types of presentations or varieties, that is, with various manufacturers of LED brands, different intensities, different qualities and presentations in DIP or SMD (they also exist in DOT Matrix presentation, which is more expensive than SMD, but is no longer very common, manufacturing was discontinued due to its high cost). They can be designed for interiors, exteriors, for architectural uses (Flexible or special based on your requirement) or for specific uses.

In installation locations where the environment is very aggressive (for example near the sea, where the air contains a lot of dust or salt) it is recommended that the modules contain a special varnish coating, as well as on their power supplies and cabinets (if they are made of steel and not aluminum). There are different types of varnishes or resins used to protect the electronics of the LED module. Depending on the type of resin and application we can distinguish 2 protective coatings for LED modules:[1]​.

It means 'additive on plate' and consists of the application of a thin layer of transparent epoxy resin spray after manufacturing. This allows the LED welds to be protected from dust and humidity, also increasing the resistance of the LEDs to impacts and abrasions. This protection method is the most common in outdoor LED screens.

It means 'adhesive on plate' and consists of the application of transparent liquid resin that completely covers the front face of the LED module. This coating adds several millimeters of additional thickness above the LED diodes, completely sealing the front of the module. In this way, a transparent and waterproof layer is created that provides complete protection of the electronics from the elements. This technology is especially indicated for outdoor LED screens installed in aggressive environments for electronic equipment.

Giant LED screens

Giant LED screens are commonly manufactured in a modular way (several modules to make up the complete screen), in order to facilitate installation, transportation and maintenance. A Module or Cabinet has certain characteristics that are added when assembling several modules or cabinets. The main characteristics of LED screens are: the distance between pixels (pixel pitch; it is measured in millimeters), the type of LEDs whether DIP (Direct In-line Package*) or SMD (Surface Mounted Diode*), the resolution (depending on the number of pixels and the technology implemented), the maximum power consumption (watts), the IP protection (resistance to ambient conditions) and the quality of the LEDs (there are many types and brands) that will determine the life, brightness, sharpness, contrast and reliability of our screen.

Giant outdoor LED screens have to be protected against damage caused by the environment: such as heat/cold, dust, wind and rain. Protection is indicated with a grade for the Front and a grade for the back (IP Protection Grade). A screen with an IP65/IP47 rating, for example, is protected on the front against dust with grade 6 and against rain with grade 5, on the back it has protection with a grade of 4 against dust and grade 7 against rain. Its resolution (directly related to image quality) is measured through the distance between its pixels, usually measured in millimeters. In the case of real pixel type screens (one red LED, one blue and one green), in which three LEDs make up each pixel, the number of pixels covered in both the horizontal and vertical length will determine the quality of the screen; example: pixel pitch of 10 mm = 1 pixel every 10 mm, so in 100 mm of horizontal or vertical distance there would be 10 pixels. In the same way, with "virtual pixel technology" type screens (two red LEDs, one blue and one green), where four LEDs are found to form a pixel. This virtual pixel technology creates a greater pixel density on the LED screen, since pixels between pixel centers are perceived (to human optics). With which you can obtain virtual pixels (pixels that do not really exist, but are created between the centers of real pixels).

Monochrome, two-color or tricolor screens

Monochrome, bicolor, or tricolor LED displays are displays dedicated to displaying regular alphanumeric characters. They can also display graphics, but to a limited extent. These screens can be made up of single-color, bi-color or tri-color LEDs, with which texts, numbers and some low-resolution graphics can be displayed. They can be implemented indoors or outdoors.

For outdoors, these screens have super bright LEDs for adequate readability in daylight.

Distance between pixels (pitch)

The distance between pixels, also known as the English word pixel pitch, is the measure of the distance between the centers of the pixels of an LED screen. The higher the pixel pitch, the greater the pixel separation, whether they are RGB (red, green and blue) pixels or single-color, bi-color or tri-color pixels. The pixel pitch also influences the viewing distance, that is, the smaller the pixel pitch, the closer the screen can be viewed with good quality. This does not apply to monochrome, two-color or tri-color screens whose main function is to display low-resolution text, numbers or graphics.

It is suggested that full-color LED screens have at least 49,000 total pixels, but the user must opt ​​for a greater or lesser number of pixels depending on their area, case or need. Since there may be cases in which the user does not require much resolution, such as in the case of perimeter screens at field level in soccer stadiums that only require displaying texts or logos at very distant distances from which spectators could see them.

The following is suggested for a good resolution:

These examples would be when viewing the screen at ground level, if the screen is given a height, the minimum viewing distance would be closer.

Modular technology

The greatest advantage that an electronic LED screen composed of modules with LED pixels has is that it can be formed or constructed without any dimension limitation. It can be very small or completely giant or mega giant. There is no limit to these screens because they are modular. And therefore, being modular, there are no spaces between the union of modules or LED cabinets, these screens are governed based on the size of the module that makes up the pixels and depending on the pixel pitch (each manufacturer can have its own module size or its specific module in terms of length and height dimension), it may be the case that a manufacturer has modules manufactured in a specific dimension to prevent the competition from replacing it, since each module is manufactured in series and using a specific mold. These modules are found in all types of presentations or varieties, that is, with various manufacturers of LED brands, different intensities, different qualities and presentations in DIP or SMD (they also exist in DOT Matrix presentation, which is more expensive than SMD, but is no longer very common, manufacturing was discontinued due to its high cost). They can be designed for interiors, exteriors, for architectural uses (Flexible or special based on your requirement) or for specific uses.

In installation locations where the environment is very aggressive (for example near the sea, where the air contains a lot of dust or salt) it is recommended that the modules contain a special varnish coating, as well as on their power supplies and cabinets (if they are made of steel and not aluminum). There are different types of varnishes or resins used to protect the electronics of the LED module. Depending on the type of resin and application we can distinguish 2 protective coatings for LED modules:[1]​.

It means 'additive on plate' and consists of the application of a thin layer of transparent epoxy resin spray after manufacturing. This allows the LED welds to be protected from dust and humidity, also increasing the resistance of the LEDs to impacts and abrasions. This protection method is the most common in outdoor LED screens.

It means 'adhesive on plate' and consists of the application of transparent liquid resin that completely covers the front face of the LED module. This coating adds several millimeters of additional thickness above the LED diodes, completely sealing the front of the module. In this way, a transparent and waterproof layer is created that provides complete protection of the electronics from the elements. This technology is especially indicated for outdoor LED screens installed in aggressive environments for electronic equipment.