Introduction to outdoor naked-eye 3Dled display knowledge

If you ask me what an LED display is, I will tell you the billboard in Times Square! - Now you have the answer. These bulky screens are bright enough to provide visibility in the scorching sun and withstand strong winds and rain. But are all LED displays so durable? Or are they all equally bright?

The brightness level, resolution and size of an LED display depend on its application. For example, outdoor LED displays such as billboards have higher brightness, wider viewing angles and higher IP ratings, and can withstand harsh weather conditions. But indoor LED displays do not require the same level of reliability. The technology used in these displays also greatly affects performance. In addition, you must understand many terms such as pixel spacing, contrast, refresh rate, etc. to buy the perfect LED display for your project.

So, to help you, I purchased a detailed guide for LED displays. Here I will introduce different display types, technologies, etc. to help you choose the perfect LED display. So, without further ado, let us get started--

What is an LED display?

LED display is a technology that uses LED panels as pixels to generate glowing text, images, videos and other visual information. It is an upgraded and more efficient alternative to LCD displays.

High brightness, high contrast and energy-saving features make LED displays the most attractive marketing tool of our era. They are suitable for indoor and outdoor use. You will find these displays everywhere, including shopping centers, banks, stadiums, highways, showrooms, stations and more. With the advancement of technology, more innovation trends continue to emerge, including OLED, Mini-LED, HDR LED, transparent LED displays, etc.

How does LED displays work?

The working mechanism of LED displays depends on the type of technology used. For example, some LED displays require backlit LCD panels, while others do not. You will learn about this technology in the next section of this article. Now let me introduce to you the basic working principle of LED displays.

The LED display consists of many red, green and blue light bulbs or chips. A red, green and blue LED combine to form a pixel. Each LED is called a subpixel. LED displays consist of hundreds or even thousands of pixels. The mechanism here is very simple. LED displays produce millions of hues by darkening and brightening the colors of subpixels.

It can be formed by mixing three primary colors to form any color. For example, if you want magenta, the red and blue sub-pixels will light up, darkening the green LED. As a result, a purple hue appears on the screen. So you can get any color you want on the LED display.

LED display technology

LED displays use different types of technologies; these are the following-

Edge-lit LED (ELED)

The LED indicator light of the LED display using edge-light technology is located around the display and points to the center. These LED strips are placed on the side, under or around the LCD panel. The working mechanism of ELED technology is very simple. Light from the edge shines into the light guide, guiding it into the diffuser. This then spreads the light evenly across the screen, creating the desired image without any bright spots.

LED direct lighting

LED direct lighting technology places LEDs behind the LCD panel rather than on the periphery like ELEDs. This technology provides better display results by placing LEDs horizontally in a grid pattern. This ensures that the entire display is illuminated. In addition, light passes through the diffuser for more uniform illumination. Therefore, direct illumination LED is a better technology than ELED, which can produce brighter images. But it's more expensive than ELED.

full array

Full array is another LED display technology that uses a backlight system (e.g. direct backlight). But the difference here is that more LEDs are used to cover the entire back of the screen. As a result, it produces brighter and better color contrast than direct lighting techniques. A notable feature of this type of LED display technology is local dimming. With this feature, you can adjust the light output for specific areas of the screen. This is possible because LEDs are divided into different areas using full array technology, and you can control each area individually. Thanks to these features, the technology provides deeper blacks and brighter highlights on the screen.

RGB

RGB technology uses three colors of LEDs: red, green and blue. Dimming and combining these colors produces different colors and shadows on the display. The mechanism is simple. For example, if you want the display to be yellow, current will flow through the red and green LEDs, darkening the blue. As a result, you can use RGB technology to get millions of colors on LED displays.

Organic Light Emitting Diode (OLED)

OLED stands for organic light-emitting diodes. The technology uses TFT backplates containing light-emitting compounds such as triphenylamine or polyfluorene. Therefore, when current passes through the panel, they glow, creating a color image on the screen.

OLEDs provide better performance than ELEDs, direct lighting technology and full-screen LEDs. Some of the main advantages of OLED include:

• Since no backlight is required, it is thinner than previous generations.
• It has infinite contrast
• The brightness of each pixel is adjustable
• Better color accuracy
• faster response times
• Infinite perspective

Quantum dot LED (QLED)

Quantum dot LED or QLED technology is an improved version of LCD-LED technology. It uses red and green quantum dots to replace the fluorescent filters used in other LED LCDs. But the most interesting thing here is that these quantum dots do not act as filters. When blue light emitted by the backlight shines on the quantum dots, pure white illumination is generated. The light then passes through the sub-pixels, causing the display to appear white.

This technology solves the problem of color fading in LED displays, especially red, black and white. Therefore, QLED improves the overall image quality of the LED display. In addition, it is energy efficient and provides better color contrast.

Mini LED

Mini LEDs use the same technology as quantum dot LEDs or QLEDs. The only difference is the size of the LED. Mini-LED backlights contain more LEDs than QLED. These features provide larger pixel positions, better resolution and contrast. In addition, it also allows you to better control the black level of your display, which you can adjust to your preferences.

Micro LED

Micro-LED is an advanced form of OLED technology. OLEDs use organic compounds to generate light. But micro-LEDs use inorganic compounds such as gallium nitride. When light passes through these connections, it lights up, creating a color image on the display. The technology is more expensive than OLED because it provides a brighter, higher-quality display.

Types of LED display

LED displays can be divided into different types based on characteristics such as LED packaging, functions or screen shape. View the different LED display options based on the following facts:

Depending on LED package type

LED displays use different types of LED packages. LED There are four types of displays, depending on the configuration of these packages. These are the following-

LED display directly inserted

DIP LED displays use traditional dual-component LED lights instead of LED chips. Observe the DIP LED display carefully and you will see dense coverage of small red, green and blue light bulbs. By combining these DIP LEDs, different light images can be displayed on the display.

LED direct line display features:

• Produce brighter images than other LED displays
• Maintain visibility in direct sunlight
• narrow viewing angle
• Not suitable for indoor LED displays

Use the LED DIP display:

• outdoor LED display
• digital billboard

SMD LED display

SMD LED displays are the most popular category of LED displays. It uses surface mount LED chips instead of the LED lights used in DIP displays. The technology is used in televisions, smartphones and other lighting devices.

Here, red, green and blue LEDs are combined into one chip. Therefore, LED chips are much smaller than LED lights. This allows you to install more SMD LEDs in your display, improving pixel density and resolution quality.

SMD LED display features:

• a higher pixel density
• high resolution
• a wider viewing angle

Using SMD LED display:

• indoor LED display
• retail advertising

gob LED display

GOB stands for Paste Board. It uses technology similar to SMD LED displays, but with a better protection system. The GOB LED display contains a layer of adhesive on the surface where the LEDs scream. This additional layer protects the display from severe weather conditions such as rain, wind or dust. In addition, it also provides better heat dissipation and extends the service life of the equipment.

If you are looking for a portable LED display, GOB LED display is the ideal choice for you. They have low maintenance costs and prevent damage from collisions. So you can easily move, install or remove them.

Features of GOB LED display

• best protection
• low service level
• More durable than other LED displays
• Minimize risk of damage from collisions
• Support transportability

Use GOB LED Display

• small-pitch LED display
• transparent LED display
• Rental LED Display

COB LED display

COB stands for on-board chip. This is the latest LED technology used in LED displays. It provides better display quality than SMD. SMD LEDs incorporate three diodes in each chip, while COBs can incorporate nine or more diodes in one chip. What's even more interesting about COB LEDs is that it only uses one circuit to solder these diodes. This reduces the LED failure rate and ensures trouble-free operation of the LED display. In addition, the high pixel density of COB LED displays provides better resolution and brightness. It can accommodate 38 times more LEDs than a DIP LED display and consumes less power. All these facts make COB LED displays a better choice than other options.

Characteristics of COB LED display

• High screen brightness
• high pixel density
• Highest video resolution
• low failure rate
• Better energy efficiency than other LED displays

Use GOB LED Display

• small-pitch LED display
• Mini LED display
• Micro LED display

DIP vs. SMD vs. UK LED COB Display: Comparison Table

standard	In-line LED	SMD LED	LED lamp beads	LED COB indicator light
Number of diodes	3 diodes (red LED, green LED and blue LED)	3 diodes/LED chips	3 diodes/LED chips	9 or more diodes/LED chips
lumens/watt	35 - 80 lumens	50 - 100 lumens	50 - 100 lumens	80 - 150 lumens
screen brightness	highest	average	average	high
light output	average	high	high	highest
viewing angle	narrow	wide	wide	wide
heat dissipation	average	high	high	highest
pixel pitch	P6 - P20	P1 - P10	P1 - P10	P0.7 - P2.5
protection grade	high	average	highest	high
price	average	short	average	high
referred application	Outdoor LED screens, digital billboards	Indoor LED screens, retail advertising	Small spacing LED display, transparent LED display, LED display rental	Small spacing LED display, Mini LED display, Micro LED display

based on functional

According to the functions and uses of LED displays, they can be divided into five categories: These are the following-

LED text display

Have you noticed the on/off LED lights in front of the restaurant? This is a wonderful example of an LED text display. This display type only supports alphanumeric and alphanumeric information. They are programmed to display certain text and therefore cannot be changed.

LED picture indicator

LEDs used to display images have more advanced technology than LEDs used to display text. They include text and images in static form. The technology uses two screens to display images. Still image billboards on streets or highways are examples of LED image displays.

LED video indicator

LED video display refers to a display that supports image movement. It is equipped with a large number of high-definition LEDs for higher-resolution video playback. The modern billboard you see on the Times Square billboard is an example of an LED video display.

Digital LED display

The digital display is similar to an LED text display. The only difference is that the number display only supports numbers, while the text display can display numbers and letters. You will find a digital display on the bank's currency board or digital clock. They are made of seven-segment discharge lamps that emit red or orange light to produce different numerical shapes.

Text display with LED grille

The text display with LED grille supports simultaneous display of images and text. Here the text continues to move, but the image remains still. This type of display is used where text movement is required. For example, at the airport gate, you will find an LED text image showing flight times. Similarly, the statistics you see on the stadium screen fall into this category.

Depending on the screen shape

You will see different shapes of LED displays. Based on this, I divided the LED display into three parts:

Flat LED display

Flat panel displays, also known as standard displays, are the most common category of LED displays. They have a thin surface composed of a series of LEDs that create high-resolution displays. The ability of these displays to generate bright images makes them suitable for indoor and outdoor use.

Curved LED display

A flat display with curved corners is called a curved LED display. They form concave surfaces that provide viewers with a larger and wider viewing angle. The most amazing feature of this type of display is its ability to adjust based on the peripheral light of the viewer. They also have greater depth and create more eye-catching visuals than flat panel displays.

LED flexible screen

Flexible LED screens are known for their highly customizable options. They give manufacturers the freedom to construct displays in different forms. The mechanism behind the flexibility of this display is attaching the LED chip to a circuit board or other flexible material such as rubber. They have insulating materials on both sides to protect the display circuitry. In addition, the flexible LED display is easy to use and maintain.

LED display application

The LED display is suitable for indoor and outdoor use. Their most common uses are as follows:

conference room

LED displays are used in conference rooms to display presentations and other research reports. It is an improved alternative to traditional projectors or whiteboards. The benefits of using LED screens in conference rooms include:

• Suitable for meeting rooms of all sizes, regardless of size
• providing high resolution images
• Improve screen visibility
• Requires less maintenance than traditional displays
• Best Conference Experience

retail advertising

Instead of using signs and printed banners, you can use LED displays for advertising. This effort will make your product stand out with colorful visual effects. This way, you can convey your brand message to customers through engaging presentations. Advantages of using LED displays in retail stores:

• Build interactions with customers
• Improve your brand reputation
• Eliminate printing costs
• easy to install and maintain

digital billboard

LED displays are used as digital billboards for outdoor advertising. DIP LED or OLED displays are bright enough to ensure visibility in strong sunlight. In addition, GOB displays have a higher level of protection against rain, dust and other weather conditions. All of these features make LED displays a great choice for billboards.

• Display ads using text, attractive images, videos and dynamic visualizations.
• Lower operating costs compared to traditional billboards
• One display can be used for multiple advertisements.
• Quickly attract customer attention

Sports field or stadium

LED displays are used in sports venues to display scoreboards, game highlights, team lineups and advertisements. The higher resolution and brightness of the LED display make it suitable for sports fields.

• Viewers in the distance can watch the game through the LED display.
• LED displays are available in large size to provide better viewing angles inside the stadium.
• Provide advertising opportunities
• Increase audience participation and make the game more exciting

Film or TV production

LED displays are widely used as backgrounds for TV shows, movies and other live performances. Provides the audience with a rich visual experience. The reasons why the industry uses LED displays include:

• The green screen can be replaced with an LED display to provide a" realistic" background.
• Allows you to display graphics and information during live performances.
• You can use the LED display to display any computer-generated background. This will save you the time and cost of setting up your studio.
• Bring a rich and engaging viewing experience to the audience.

hotel ballroom

The hotel's banquet hall is a lively venue for business meetings, weddings and other events. Installing LED displays in the hotel's banquet hall allows you to showcase the best hotel interiors and landscapes, booking information, event times and more. In addition, it eliminates the cost of traditional printed backgrounds.

Building Lobby

Installing LED screens in the lobby of a building can greatly simplify your building management system. This creates a modern atmosphere for your building. The benefits of using LED displays in building lobbies include:

• Give your visitors an unforgettable welcome experience.
• Increase the value of the building.
• You can use the LED display to make announcements.

LED 3D naked-eye screen

In this digital age, marketing plays a vital role. In this case, the naked-eye LED 3D display is a good tool. Viewers can view your product in 3D and take photos and video clips. Sharing these visuals can be a great marketing strategy for your brand.

sales gallery

Owners use LED displays in stores to display product information with vivid visual effects. This can effectively attract customer attention and increase return on investment (ROI).

Advantages of LED display

LED displays have many advantages; some of them are as follows:

• High-quality images:LED displays provide you with different levels of resolution. As pixel density increases, the image quality on the display also improves. They can also remain visible in strong sunlight.

• Energy saving:One of the most impressive features of LED displays is their energy saving. You will be surprised to find that LED displays consume 10 times less energy than incandescent light bulbs. This way, running the LED display all day long won't cost you too much electricity bill.

• Intensity and brightness:The LED display is bright enough to support outdoor lighting. You can see these displays even in the scorching sun.

• Color range:The full-color LED display can display more than 15 million colors. Therefore, if you need high color contrast, then LED displays are the best choice.

• Longer life:LED display can last for 100,000 hours! In other words, the display can be used for more than ten years. But proper maintenance and working environment are important here.

• Light weight:Compared with traditional displays, LED displays are much lighter. They must think about screens and take up less space than traditional screens. These features allow you to place them anywhere. You can also transport them according to your needs.

• Available in a variety of shapes and size:LED displays have multiple uses. You will find that they come in various size. Whether you need small or large displays, they will meet your goals. For forms, you can choose a flat or curved screen according to your preferences.

• Easy to program:LED display supports Internet connection. This way you can control and turn the device on/off from anywhere.

• Excellent viewing angle:Buying a higher viewing angle LED display allows you to create visibility up to 178 degrees. This is why LED screens provide visibility in all directions.

• Fast response time:The LED display has a very fast response time. They can quickly turn off/on or switch to the next image. These features are very suitable for live sports broadcasts, high-speed video, news, etc.

• Reduce eye strain:LED display technology ensures flicker free viewing. This can reduce eye strain.

• Easy to install and maintain:LED display is waterproof, dustproof and corrosion-proof. So you can easily maintain it. Moreover, the installation process is simple.

• Environmentally friendly:Unlike other lighting technologies, LED displays do not release harmful gases such as mercury or ultraviolet light. In addition, they consume less energy and do not overheat. LED displays require less maintenance and repair, resulting in fewer parts being produced.

• Improve brand and reputation:Installing LED displays allows you to showcase your products with eye-catching visuals. This helps customers remember your products for a long time, thereby improving brand reputation.

Disadvantages of LED display

In addition to its advantages, LED displays also have some disadvantages. These are the following-

• Causes light pollution:LED displays provide higher brightness to ensure visibility during the day. But the problem here is that it produces the same level of brightness at night. This excess brightness can lead to light pollution at night. However, considering the environment around you, you can solve this problem by using a light sensor that automatically adjusts the brightness of the screen.
• Expensive:LED displays are more expensive than traditional banners or printed displays. This requires LED panels, control systems and energy costs, making the technology costly.

• Defects prone:LED displays are more prone to defects and damage. To avoid this situation, appropriate design is needed.
• Gradually color cast:Over time, color cast problems will appear on the LED display. This problem is related to white; LED displays usually cannot produce pure white.

Terms you need to know about LED displays

I have listed some terms about LED displays that you should understand to understand the quality of the display. Learning these terms will also help you understand your requirements and choose the ideal display for your project.

pixel pitch

Pixel spacing refers to the distance between two pixels in millimeters (mm). Smaller pixel spacing means less space between pixels. This results in higher pixel density, which provides better image quality. The pixel spacing is represented by the letter P. For example, if the distance between two pixels is 4mm, it is called a P4 LED display. Here I added a chart so you can better understand-

LED display name(based on pixel spacing)	pixel pitch
LED screen P1	1 mm
LED screen P2	2 mm
P3 LED screen	3 mm
P4 LED screen	4 mm
P5 LED screen	5 mm
LED screen P10	10 mm
LED screen P40	40 mm

regulations

Resolution refers to the number of pixels displayed on the LED display. The term directly refers to image quality. Suppose you have a large low-resolution screen and a small low-resolution screen. Which model has the best display? Here, screen size is independent of image quality. Higher resolution means more pixels and better image quality. Therefore, it doesn't matter how small the screen is; if it has better resolution, it will provide better images.

The video resolution of the LED display has two numbers: one shows the number of vertical pixels and the other shows the number of horizontal pixels. For example, a high-definition LED display means displaying 1280 pixels vertically and 720 pixels horizontally. Depending on the resolution, LED displays have different names. Check out the chart below for better ideas.

regulations	Number of pixels (vertical x level)
HD	1280×720
full HD	1920×1080
2K Quad HD	2560×1440
4 K Ultra HD	3840×2160
5K	5120×2160
8K	7680×4320
10K	10240×4320

viewing distance

The distance at which the visibility or image quality of the LED display is maintained is called the viewing distance of the LED display. To get the best viewing distance, consider pixel spacing. The smaller the pixel spacing, the shorter the minimum viewing distance. Therefore, for smaller rooms, it is best to choose LED displays with small spacing.

The minimum viewing distance of an LED display is equal to the number of pixel spaces. For example, if the pixel spacing of an LED display is 2 mm, the minimum viewing distance is 2 m, then what is the best viewing distance?

To get the best viewing distance, you need to multiply the minimum viewing distance by 3. Therefore, the best viewing distance for LED displays is:

Best viewing distance = minimum viewing distance x 3 = 2 x 3 = 6 m.

LED display	pixel pitch	minimum viewing distance	optimal viewing distance
P1.53 Indoor small-pitch LED display	1.53 mm	> 1.53 m	> 4.6 m
P1.86 Indoor small-pitch LED display	1.86 mm	> 1.86 m	> 5.6 m
P2 indoor LED display	2 mm	> 2 m	6 meters
P3 indoor LED display	3 mm	> 3 m	9 meters
P4 indoor LED display	4 mm	> 4 m	12 meters
P5 indoor LED display	5 mm	> 5 m	15 meters
P6.67 LED display	6.67 mm	> 6.67 m	> 20 m
P8 LED display	8 mm	> 8 m	> 24 m
P10 LED display	10 mm	> 10 m	> 30 m

viewing angle

The viewing angle of the LED display determines the maximum angle at which viewers can enjoy viewing while maintaining consistent quality. But you may be wondering how viewing angle affects image quality.

If you watch TV from the center, the viewing angle will not affect image quality. But what if your eyes are off center? In this case, if the viewing angle is small, the display will appear darker. In order to solve this problem, outdoor billboards use wide viewing angle LED displays. For example, LED displays in shopping malls have a larger viewing angle. In this way, moved audiences can see high-quality visual effects from all angles.

178 degrees (vertical) x 178 degrees (horizontal) is considered to be the widest viewing angle for an LED display. However, viewing angles of 120 to 160 degrees can provide significant display quality for general use.

refresh rate

The refresh rate of an LED display refers to the number of times the image is refreshed or refreshed per second. It uses units of Hertz (Hz) Definition. For example, the LED display has a refresh rate of 1920Hz, or one second; 1920 new images are drawn on the screen. Now you may be asking why a higher refresh rate is needed.

To check the refresh rate of the LED display, turn on the phone's camera and record the screen. If your monitor has a low refresh rate, you will find more black lines in recorded videos or photos taken. This padding can make the displayed content seem unattractive, making it difficult to interact with the audience. Therefore, never underestimate the benefits of higher refresh rates. You can follow these tips to get a higher upgrade rating:

• Get a high refresh rate LED display module.
• Select high-quality control ICs.
• Use an efficient LED control program to control your LED display.

brightness

The brightness of the LED display is measured in nits. The higher the nit value, the brighter the LED screen. But is a brighter display always a good choice? The answer is clear: No. Before selecting brightness, you need to analyze application requirements. For example, if you need an LED display for indoor use, a brightness range of 300 to 2,500 nits is sufficient. If you exceed this range, you may cause eye strain and headaches due to excessive brightness. Similarly, if you want an LED stadium display, the brightness level should be higher. Here is a chart of recommended brightness levels for various applications:

departments	Recommended display brightness
indoor	300 to 2,500 nits
the semi-open	2,500 to 5,000 nits
outdoor activities	5,000 to 8,000 nits
Outdoor sunlight	Above 8,000 nits

contrast

The contrast ratio of LED displays measures the difference in brightness ratio between the darkest black and the whitest white. This ratio indicates the ability of LED displays to produce rich, bright colors. Higher contrast means better image quality. An LED display with an aspect ratio of 1000:1 means that the brightness level of all black is 1000 times lower than that of all white. Low contrast reduces the appearance of content, making it gray and less saturated. Therefore, in order to ensure the correct viewing effect, an LED display with a higher contrast should be selected.

How to choose the best LED display? - buyers 'guide

Through the previous section, you have already understood the basic characteristics and terminology of LED displays. Now I will help you choose the best LED display.

To save you time, you can check out the top ten LED display manufacturers in China.

Consider location-indoor/outdoor

The placement position of the LED display is an important factor when selecting the brightness level. If you install a monitor indoors, you can use a lower brightness level, but pay attention to indoor lighting. Similarly, if the display is intended for outdoor use, choose a higher brightness based on its exposure to sunlight.

Determine your screen size requirements

The size of the LED screen depends on the room size, resolution and pixel spacing. Screen size refers to the width x height of the LED display. But the ideal size depends on changes in resolution. However, there is one basic rule for determining the ideal screen size for an LED display:

Ideal screen size (meters)=(resolution pixel spacing) 1000

For example, if the pixel spacing of an LED display is 3mm, the required screen size is:

• For HD (1280 x 720):

Screen width = (1280 x 3) 1000 = 3.84 m

Screen height = (720 x 3) 1000 = 2.16 m

Recommended screen size = 3.84m (width) x 2.16m (height)

• For Full HD (1920 x 1080):

Screen width = (1920 x 3) 1000 = 5.760 m

Screen height = (1080 x 3) 1000 = 3.34 m

Recommended screen size = 5.760m (width) x 3.34m (height)

• For Ultra HD (3840 x 2160):

Screen width = (3840 x 3) 1000 = 11.52 m

Screen height = (2160 x 3) 1000 = 11.52 m

Recommended screen size = 11.52m (width) x 11.52m (height)

So you can see that the screen size changes the resolution for the same pixel spacing. The same thing happens if the resolution remains the same and the pixel spacing decreases or increases.

Therefore, when purchasing LED displays, pixel spacing and resolution should be considered. In addition, the size of the room is also an important factor to consider.

protection grade

The IP level determines the level of protection of the LED display. It contains two numbers that determine the level of protection: one for solid penetration and the other for liquid penetration. A higher IP rating means better protection from collisions, dust, wind, rain and other weather conditions. But is a higher IP level always necessary? No, you need to review the application to determine the IP level. If you install LED displays indoors, upgrading to a higher IP level will be a waste of money. But for outdoor conditions, such as installing billboards, you need more protection. In this case, the protection level of the LED display must reach IP65 or at least IP54. Upgrading to IP65 will protect your LED display from dust, heavy rain and other hard objects. To learn more about IP ratings, check out this article. IP Level: A complete guide.

Compare functionality and quality

When purchasing LED displays, you will encounter different conditions to judge its quality. But first you need to understand your needs and then match them with the product you want to buy. You should use these quick tips to select the best quality:

• Choose higher resolution LEDs Display screen for better visual quality.
• Higher contrast will provide brighter colors and richer image quality.
• Choose a higher refresh rate for smoother motion and reduce screen flicker.
• Choose a perspective based on your application. If the target audience watches in a concentrated manner (such as an LED display in a conference room), a smaller viewing angle will come into play. But if the LED display is aimed at a mobile audience, such as a display in a shopping mall, a higher viewing angle should be selected.

energy consumption

The power consumption of an LED display depends on many factors, including the technology used, brightness and screen size. The use of LED displays also has a significant impact on power consumption. For example, at the same brightness level, outdoor LED screens consume more energy than indoor LED screens. Check the table below to better understand your energy consumption.

display type	Energy consumption (watts/square meter)	Maximum brightness level (nits)
P4 indoor LED display	290	1800
P6 indoor LED display	290	1800
P6 LED display	cap. 375	7000
P8 LED display	400	7000
P10 LED display	450	7000
Outdoor energy-saving P10 LED screen	200	7000

Therefore, we can see from the above figure that the power consumption of outdoor LED displays is high. And as the pixel spacing increases, the power consumption increases. The higher the required power resolution, the better. However, choosing energy-saving options can save your electricity bill.

Check warranty policy

Most LED display manufacturers offer a warranty period of 3 to 5 years. But LED displays are usually durable enough to last for more than seven years as long as they are properly maintained. However, you should review the terms and conditions of service before purchasing.

LED display installation method

Depending on the application of the LED display, you can install the LED display in a variety of ways. For example, installing outdoor LED screens is more difficult than installing indoor LED screens. In addition, you should build a more durable structure for outdoor LED displays to withstand harsh weather conditions such as storms and high winds. But these factors are not taken into account when installing indoor LED displays. Below I list various installation methods for indoor and outdoor LED displays. Complete these processes and select the one that best suits your application category.

wall mounting

Wall-mounted LED screen installations are suitable for indoor and outdoor applications. For indoor installations, the brackets must be fixed to the wall. Consider the weight of the LED display and make sure the bracket is strong enough to support the screen. But for outdoor installations such as digital billboards, you will need a custom steel frame to install on the walls of the building. The service platform is built between the display screen and the service wall. However, the venue uses a forwarding service system.

In-wall installation

If you want your LED display to look neat and tidy, please choose a wall-mounted installation method. During this process, the display is installed inside the wall using a front-end service system-this type of installation is suitable for indoor and outdoor applications. But the installation is quite complex, and engineers must calculate the appropriate depth to embed the screen.

surface mount

You may see hanging displays at train stations, basketball courts and other event venues. This installation category is most suitable for areas with high traffic. But here we must consider whether the strength of the ceiling can support the weight of heavy LED displays to avoid accidents.

pole mount

Light pole installation is suitable for LED billboards. This design is very expensive because installing the pillars requires building a concrete foundation. This process includes testing soil strength, wind loads, etc. Here, it is important to consider the height of the columns to avoid interfering with the surrounding infrastructure. The biggest benefit of pole installation is visibility. Because the LED display is installed at a high height, people in the distance can see what is being displayed. However, depending on the size of the LED display, there are two types of pole mounts:

• Small LED display mounted on single pole
• Double pole installation provides more reliable support for large LED displays

roof installation

Roof mounting is a great choice for increasing the visibility of display content. You will see such installations in urban areas with large buildings. But wind loads are the most challenging situation engineers face when installing roofs. When installed on poles, LED displays are safer than roof-mounted installations. However, installing roofs is still cheaper than the pillar method because there is no need to build concrete foundations. However, the structure of the building and its ability to support the weight of the screen must be considered.

Mobile LED display

Mobile LED displays are the latest form of advertising. At the same time, LED screens are also installed on cars. While driving, the vehicle distributes information about the content of the display to many people. As a result, this type of installation is becoming increasingly popular.

Factors affecting the life of LED displays

Although LED displays have durable and long-lasting technology. However, some factors directly affect its service life. These are the following-

• Ambient temperature and heat dissipation

Ambient temperature has a great impact on the mechanism of LED displays. If the ambient temperature is high, the operating temperature of the display will increase. Eventually, the LED display overheats and shortens the service life of internal components. In order to avoid this situation, an effective heat dissipation method is needed. For example, you can install a fan or air conditioner to prevent overheating. Radiative surface treatments are also an excellent choice to reduce temperatures.

• supply voltage

The power consumption of LED displays is different in indoor and outdoor applications. You must have a well-configured display and install it correctly to ensure proper power supply. This will help you get maximum power output without affecting service life.

The difference between LED display and LCD display

LCD displays are the predecessor of LED display technology. Despite its many shortcomings, LCD is still a strong competitor to LCD displays. The low cost of LCD technology is one of the main reasons for its popularity.

• LED displays use LEDs to create images. Liquid crystal displays, on the other hand, use liquid crystals to generate illumination.
• The LED display can emit light on its own and does not rely on external lighting. But LCD monitors rely on ambient light, which puts their image quality in question.
• For outdoor installations, brightness is a key factor to consider. LED displays can provide much higher brightness than LCD displays. This feature makes LEDs the best choice for outdoor lighting.
• LED displays have higher contrast than LCD displays. Therefore, by using LED displays, you will get brighter colors, better glare and color accuracy.
• LCD displays may not be suitable for mobile walking areas because of their narrow viewing angles. But just install an LED display here. Their vertical and horizontal viewing angles are as high as 178 degrees. In this way, the audience can correctly appreciate the content being displayed from any angle.
• Compared to other lighting systems, LED technology consumes the lowest energy. Therefore, if you want a power-saving feature, an LED display will be a better choice than an LCD display.
• The LED display module has a thinner frame and is more convenient to operate. But the viewing experience of LCD displays will be affected because of their narrow visible borders.
• In terms of service life, LED displays have a longer service life than LCD displays. They can work more than 100,000 hours. However, this life may be interrupted by improper maintenance.

LED Display vs. LCD Display: Comparison Table

standard	LED display	LCD screen
lighting technology	LED	Backlit LCD display
contrast	high	average
viewing angle	wide	narrow
power consumption	short	average
screen brightness	high	average
color accuracy	high	average
Nest	frameless	Thin visible frame
life	long	average
price	high	average

LED versus OLED displays-which is better?

OLED is one of the latest LED display technologies. Traditional LED displays require backlighting, but OLED displays do not. One of the significant differences between this technology is its mechanism. OLED displays contain organic compounds that glow when current passes through. But the LED display does not contain organic compounds.

In terms of performance, OLEDs have better heat dissipation accuracy and a wider viewing angle than LED displays. In addition, OLED displays allow you to control the brightness of individual pixels. This feature provides you with unlimited contrast. Therefore, there is no doubt that OLED displays have better technology than LED displays. Therefore, its price is much more expensive.

Indoor LED display and outdoor LED display

There are many differences between indoor and outdoor LED displays that need to be considered. However, the main differentiation criteria are as follows:

standard	Indoor LED screen	LED display
defined	LED displays installed indoors are called indoor LED displays.	Outdoor LED displays refer to displays installed in outdoor areas.
尺寸	Such LED displays are usually small and medium in size.	Most of them are larger in size.
brightness	The brightness level of indoor LED displays is lower than that of outdoor displays.	Because the outdoor LED display is exposed to direct sunlight, its brightness level is high.
protection grade	IP 20 or higher is enough for indoor LED displays.	They require a higher IP rating (IP65 or at least IP54) to withstand rain, wind, dust and collisions.
waterproof	Indoor LED displays do not need to be waterproof because they cannot withstand harsh weather conditions.	Since outdoor LED displays have to withstand rain and storms, they need to be waterproof.
easy to install	Installation of indoor LED displays is simple.	Outdoor LED displays are difficult to install.
service level	They are easy to maintain.	This type of LED display is difficult to maintain.
power consumption	Indoor LED displays consume less energy than outdoor LED displays.	Because outdoor displays are larger and produce brighter images, they consume more power.
viewing distance	The viewing distance of indoor displays is shorter.	Outdoor LEDs have longer viewing distances to ensure maximum visibility.
price	The price of this kind of LED screen is lower than that of external screen.	Because outdoor LED displays require better protection, higher image quality and reliable installation, they cost much more.
departments	Bank counter meeting room lobby banquet hall lobby building supermarket billboard	Billboard stadium retail advertising

Future trends and innovations in LED displays

LED displays have caused a sensation in the advertising field. But with the advancement of technology, LED displays are developing more advanced trends and innovations. Some of them are as follows:

HDR (High Dynamic Range) Display

HDR, or high dynamic range technology, takes the digital display experience to a new level. Improved HDR display will bring--

• Higher resolution, such as 8K and above
• Better contrast and more accurate HDR rendering
• a wider color gamut
• Higher brightness levels and improved contrast
• automatic brightness adjustment

Curved flexible display

Although curved surfaces and flexible displays are nothing new, they have become a growth trend in LED displays. Although flat panel displays are standard displays, curved and flexible displays have some special advantages that flat panel displays cannot provide.

Compared to flat panel displays, both curved and flexible LED displays provide enhanced functionality. Curved screens provide viewers with a better viewing experience. In contrast, flexible displays work well when traditional displays cannot be installed, such as curved walls or oddly shaped areas. As these technologies mature, we expect to see more innovative designs, including curved and flexible LED displays.

Transparent and translucent LED display

Transparent and translucent technology is the most innovative method for LED displays. They provide a perspective view through the screen. Integrating this technology can bring more high-tech and modern ways to your space. In the future, this will become more common in applications such as retail, architectural displays and digital signage. For more information, you can check out what is a transparent LED screen and how it works?

Increase resolution and pixel density

Resolutions are getting better day by day. This trend is driven by the growing demand for LED displays such as signs and billboards. As the resolution increases, the quality of the LED display will improve, providing clearer visual effects. This will meet the growing demand for visual expression. Therefore, there is no doubt that as the number of pixels increases, the resolution of the LED display will increase quickly.

Integration with AI and Internet of Things

The combination of LED displays with artificial intelligence (AI) and Internet of Things (IoT) technologies is an exciting trend. Compared to traditional screens, they can provide a more immersive experience and interact more naturally with the virtual environment. It will bring smart features to LED displays, including:

• voice control
• motion control
• Automatic content optimization based on audience preferences
• Real-time data integration to display dynamic content

Troubleshooting LED display problems

Like other devices, LED displays sometimes fail or fail. Faced with such a situation, you must understand the main problems of LED displays. Here, I list the most common problems with LED displays and some tips to solve them.