How Does the LED Screen Work? LED screens are everywhere nowadays, and that is because their working principle is much more efficient that those of other technologies.
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Let&#;s examine exactly what these working principles are.
Main Points:
Display screens contain a number of LED called &#;Module&#; cells, which are the same panels used in LED and are known as &#;pixels&#;.
They are distributed within LED screens evenly and with the same accuracy, and this makes them provide the best possible quality in displaying content and give the best colors and the best possible viewing angle.
The term LED refers to &#;Light Emitting Diode&#;, which means the light-emitting diode, and the electric current passes through this LED, to provide the best possible quality.
One of the important advantages offered by the display screens is energy saving, as it is less energy consuming than the previous generations of screens, while maintaining the best possible quality, and works with high efficiency.
And therefore it is the most widespread and most used, especially in the means of advertising, as it presents your content with the best possible quality as it works to attract target customers to serve you through its glow, brightness of colors and unique quality.
Display screens depend in their work on the passage of electric current passing through them, because they contain light emitting diodes, and these valves are composed of an anode and a cathode, and they are &#;anode &#; cathode&#; and both are separated at two different ends from each other.
With the connection of the electric current, then the atoms are quickly excited from the anode, as it is the highest in energy, and go to the cathode, which is the lowest in energy.
Thus, fusion of the crystal occurs in one direction, and electricity is connected to it as a whole in the form of a photon, and thus one of the light rays that has a specific frequency and accordingly has a wavelength as well as a specific color emitted by the LED, which explains the multi-color ability of the LED.
(How Does the LED Screen Work?)
Solid-state devices called (LEDs) produce light through the electroluminescence of semiconductors, In a nutshell, this is the process by which a substance emits light after being exposed to an electric current.
Contrary to traditional incandescent lighting, which produces light by using heat energy, LEDs essentially transform electric energy directly into light, reducing the amount of energy wasted through heat loss.
Due to the decreased heat output of LEDs and the fact that they don&#;t waste energy in the form of heat that doesn&#;t produce light, LED technology is frequently referred to as &#;cool light technology&#; in contrast.
When selecting the LED display screen, it is necessary to select the appropriate size and resolution according to the use situation and needs, Generally speaking, the size of indoor LED display screen is relatively small, while the size of outdoor LED display screen is large.
When selecting the size, it needs to be determined according to the actual situation on site. Resolution is also a very important parameter, The higher the resolution, the better the display effect, but the higher the cost. Therefore, we need to find a balance between effect and cost.
When choose the right LED Screen, you need to understand the brightness and color adjustment of LED display screen, Generally speaking, the brightness of indoor LED display is lower than that of outdoor LED display.
The higher the brightness, the higher the cost In addition, it is necessary to understand the color adjustment function of LED display in order to adjust the color during use to achieve the best display effect.
(How Does the LED Screen Work?)
How Does the LED Screen Work? The LED screens work on the principle that the output changes when the input is varied but what does this mean?
For understanding this better you need to consider a pixel which is a combination of three different LEDs i.e. RGB.
This means that when only one out of the Red, Green and Blue LEDs, is turned on, the color is different but when more than one of these LEDs is turned on, the combination of these two or three colors generates other colors. Using this method, any color can be obtained on the output.
When the backlight is turned on, white color is produced and when it is turned off, the color turns black.
For producing different colors using this arrangement, the intensity of light for each color filter has to be separately controlled.
For example, when the light from the blue filter is blocked in this RGB combination, the output is yellow, and when the light from the red filter is blocked, the output is cyan.
It is possible to create billions of different colors by varying the diode intensity, The LED screen&#;s matrix of colored pixels appears as an image when seen from a specific distance.
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(How Does the LED Screen Work?)
There are different types of LED screen and choosing the right type according to the display effect and needs will bring better effects and experience to the exhibition.
Stand Led display screen:
LED Screen is a freestanding screen for displaying captivating videos and images indoors and outdoors including retail stores, shopping malls, events, exhibitions, etc.
Compared with traditional advertising media this kind of screen has great advantages in terms of effect, cost and flexibility, Stand LED display screen can be vertical, wall-mounted, or suspended, and it can also be creatively spliced to add personality.
These characteristics make them ideal equipment for advertising, saving maintenance costs for replacement, Stand LED display screen is lightweight, cabinet frame and LED parts are reliable and portable the frameless design makes the product easy to move and fit in tight spaces.
Transparent LED screen:
Transparent LED screen display is a display technology that uses (LED) to produce an image, The light emitted by the LED is projected onto a transparent surface. This transparency allows viewing from both sides of the screen.
Transparent LED screens are ideal for interactive displays and they really make a lasting impression on any audience, Besides, these screens are also energy efficient.
And they are an attractive solution for companies you can use them on billboards, showrooms and other public places for advertisement/display.
Flexible LED display:
LED flexible screen is also called soft module LED display, It is made of a special flexible material, which has strong flexibility and a wide range of applications.
With the development of display technology, more and more application places need to install LED displays for advertising or knowledge dissemination, while ordinary LED displays are limited by many specific places and cannot meet more special application scenarios For example, cylindrical screens used in shopping malls, LED displays of various special shapes, etc.
The development of flexible LED screens has made up for this shortcoming, allowing more special application places to install LED displays.
(How Does the LED Screen Work?)
Naked eye 3D LED display:
Naked-eye 3D LED display is a display device specially designed for viewing 3D effects with naked eyes.
Compared with the traditional 3D display technology that needs to be matched with 3D glasses to see the 3D effect, the glasses-free 3D technology can directly display the 3D picture, so that the audience can enjoy a more natural, real and comfortable picture without wearing any auxiliary devices.
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The screen adopts the angled design, combined with 3D video materials, allowing viewers to appreciate real 3D images with naked eyes.
It is installed outdoors, and like traditional LED displays, it is usually installed on building facades, attracting passing potential customers to stop and watch 3D brand stories or product details, leaving a deep impression on them.
(How Does the LED Screen Work?)
The LED display is divided into two types: high refresh rate and normal refresh rate, The refresh rate of the high refresh rate display can reach Hz/s, and the normal refresh rate is Hz/s.
When playing videos and pictures, the high refresh rate and normal refresh rate screens are almost indistinguishable with the naked eye, but they can be distinguished through mobile phones and high-definition cameras.
If the requirements are not high or there is no shooting requirement, you can use the general refresh rate, you can choose the, and the price is also affordable.
The price of high refresh rate and general refresh rate is quite different, and the specific choice depends on customer needs and capital budget.
The LED screen with regular refresh rate will have obvious water ripples when taking pictures with the mobile , and the screen looks flickering, while the screen with high refresh rate will not have water ripples.
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(How Does the LED Screen Work?)
EGY LED is an Egyptian innovative manufacturing and trading company providing outstanding indoor and outdoor LED display screen solutions to the Egyptian, Middle East and Africa markets.
With more than projects in the last decade, our experience and intensive development have resulted in a strong, modern enterprise, reliable and sought after partner on an international level.
EGY LED HQ is based in Cairo with its state of art manufacturing facilities located in Badr industrial city and support offices in Heliopolis, 6th. Of October City and Delta accomplished projects domestically and internationally.
To be the first manufacturer of giant LED screens in the Middle East, the Arab world and Africa, This is after we gained the trust of our customers and became the first brand in Egypt
Manufacturing technology of the future, and impressing customers with our modern technologies, high quality products and distinguished services.
Outdoor LED displays are an impressive feat of technology. Brilliant color and brightness create visually stunning images that turn heads and generate attention for your business. Outdoor LED signs can display trillions of colors in a radiant portrayal of text, images, and animation. When you need outdoor signage that stands out among the rest, it&#;s clear that LED signs are the solution.
How do outdoor LED signs work, though? A lot of design and engineering goes into ensuring you have the most effective signage solution possible. Moreover, outdoor LED signs use advanced technology to create a durable and lasting display that can continue to shine bright in different seasons, weather patterns, and times of day.
Take a peek inside the technology behind outdoor LED signs with this guide to the science, equipment, and other innovations that create brilliant, effective outdoor LED signage.
What Are LEDs?
To understand any kind of LED sign, you must first know your way around LEDs and how they operate. LED stands for light-emitting diode. These diodes come in three colors: red, blue, and green.
LEDs are a far more efficient lighting solution than incandescent bulbs. Each LED operates through complex electronic circuits and software. The LED lights contain a microchip. When electricity hits that microchip, it illuminates the diodes and creates visible light. Meanwhile, a heat sink absorbs any heat produced alongside that light. LEDs don&#;t burn out the way traditional electric light sources do, which means they can shine brighter and last longer than competing solutions.
While individual light-emitting diodes are tiny units, they form the foundation of all LED signs, thus making them an integral part of how outdoor LED signs work. By working together, multiple tiny LED lights can create a bright, consistent display of trillions of colors.
Creating a Pixel
Individual diodes or diode clusters form pixels, which go on to create the colors and images of the LED display. There are two main types of LED pixels: surface-mounted diode (SMD) pixels and discrete pixels. Both types of pixels offer outstanding variety in size, configurations, and brightness levels, making them both versatile LED solutions.
SMD pixels consist of a single diode that contains one red, one blue, and one green LED. Because these LEDs are within a single diode, they can sit closer together, creating a tighter pixel pitch and a higher resolution.
Discrete pixels consist of clusters of individual LED diodes. One red, one blue, and one green LED pixel work together to create a single discrete pixel.
LED pixels work when the individual color diodes change in brightness. The varying intensities of the diodes create a full range of colors. Holding specific intensity levels across the LED sign creates a stationary image, while turning diodes on or off at different speeds can create motion and animation.
Traditionally, SMD pixels were the popular choice for indoor LED signs. The tighter pixel pitch and clearer resolution make SMD pictures ideal for signs with shorter viewing distances. Additionally, older LED technology meant SMD pictures weren&#;t as bright as discrete pixels. However, modern LED technology creates a dazzling display with both SMD and discrete pixel modules. Both options offer full-color brightness for any digital sign.
The Importance of Pixel Pitch
Pixels are the building blocks of LED signs. They work across the entire screen to create a cohesive image. The number of pixels in a display and the distance between individual pixels determine the screen&#;s resolution.
Low pixel density&#;fewer pixels with more distance between them&#;makes it easy to see the individual pixels when you&#;re up close. This creates a low-resolution image. High pixel density, on the other hand, means there are more pixels with smaller spaces between them. This tighter pixel pitch makes it harder for viewers to see the individual pixels making up the image, thus creating a higher-resolution display.
LED Tiles
Tiles are another way to create and measure pixel density in an LED display. LED tiles consist of groups of pixels. Tiles connect these individual pixels in a square formation. More pixels on a tile means greater pixel density and a higher image resolution. In an LED sign, tiles connect in horizontal rows and vertical columns to create a seamless grid across the entire screen. Calibration ensures uniform color and brightness across every tile to create a clear and brilliant image.
Navigating Outdoor Viewing Distance
The right pixel pitch allows your LED display to be clear, legible, and captivating at the right viewing distance. In outdoor displays, that viewing distance is generally larger, so pixel pitch can be larger to display bigger text and images at a greater distance.
No two signs are alike, though. The right pixel pitch for one display won&#;t be as successful in another. Outdoor LED sign manufacturers must factor in viewing distance, location, size, and other details to create the most useful display possible. The configuration of LED tiles and a range of pixel pitch options allow us to create a sign that displays content precisely how you need it, making your message as effective as possible for viewers in that specific location.
Compensating for Outdoor Lighting and Environments
Resolution and viewing distance aren&#;t the only factors to consider when building and implementing outdoor LED signs. The outdoor environment also presents challenges in the form of different lighting and visibility conditions.
An indoor display looks the same all day long, but an outdoor display will look different at night, in the light, on a cloudy day, in the rain, during a foggy day, and throughout countless other weather conditions. A sign that is too bright at night might appear dull in direct sunlight.
Sign manufacturers avoid these issues through innovations such as manual or automatic dimming options. With more control over the display brightness, sign owners can ensure their displays are efficient, effective, and comfortable to look at in any condition.
At Optec Displays, we design our outdoor digital signs with only the highest quality materials and components. From the individual diodes to the durable cabinets, every piece offers efficiency, durability, and performance. Our premium LED displays can make all the difference for you and your business. Contact Optec today to learn more about our outdoor LED sign options and get started with your digital signage solution.
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