All posts tagged: flexible LED displays

LED flexible screen is a flexible and plastic LED display screen that can be freely bent and deformed according to different application requirements. The following are common application scenarios for LED flexible screens:

LED flexible screens can be freely designed and installed according to the shapes and curves of billboards and advertising walls to attract people’s attention. They can be used in commercial advertising, indoor and outdoor advertising, shopping malls, sports venues and other places.

Due to its flexibility, LED flexible screens are particularly suitable for backgrounds and special effects on stages and performing arts performances. They can be freely deformed according to the requirements of the stage designer, bringing more creativity and stunning effects to the performance.

LED flexible screens can be used in exhibition and display venues, such as museums, exhibition halls and art exhibitions. They can be bent and deformed according to the shape and display needs of the exhibits to present a more attractive and interactive display effect.

LED flexible screens can be used in commercial and office spaces, such as shopping malls, hotels, office buildings, etc. They can be freely transformed according to the design and needs of the space, adding modernity and uniqueness to the indoor environment.

With the rapid development of LED display technology, not only small-pitch LED series, but also ultra-thin flexible LED displayshave been introduced in recent years, which have been widely used in more applications.

Flexible LED displays, also known as LED soft screens, possess a unique bendable design that allows them to be bent at a certain angle without damage. Unlike ordinary LED displays, their circuit board is made of a special flexible material that will not break due to bending. This feature enables them to be mainly used in some cylindrical shapes, semicircles, ellipses, exhibition halls, shopping malls, and other special occasions.

One of the main features of flexible LED displays is their splicing flexibility. They are easy to bend and can be folded at 120 degrees, making it easy to achieve curved splicing. Compared with the LED film screen, they can realize various installation methods such as floor installation, hanging installation, embedded installation, and more, which are less restricted by the installation area. As a result, they have a wide range of applications and can realize the installation of various exquisite and creative customized LED displays.

Another key feature of flexible LED displays is their anti-blue light function, which can effectively prevent harmful blue light from harming the eyes and avoid visual fatigue caused by facing the display screen for a long time. This function is especially important in environments such as exhibition halls and shopping mall centers, where people will watch the content played on the display for a long time and at close range.

Flexible LED displays come in various sizes and specifications, including P1.25/P1.579/P1.667/P1.875/P2/P2.5/P3/P4. They have high flexibility, flexible splicing, and high density. It truly realizes seamless splicing, effectively reducing the interference of visual gaps, and the picture display is complete and coherent, making it more suitable for indoor installation. When viewed at close range, they can also be displayed in high-definition with a refresh rate of up to 3840Hz. The extremely fast response eliminates image afterimages, making the screen playback more delicate and smooth and viewing more comfortable. The intelligent module design saves recalibration time. The picture has a high degree of restoration, the gray scale is excessively smooth, and the texture processing is clear.

Flexible LED displays have a unique soft module design that sets them apart from traditional LED displays. The PCB board of the flexible LED display is made of flexible soft board, and the mask/bottom shell is made of high-quality silicone material, which makes the module softer. The bending arc is ≤145°, and the viewing angle is as high as 140°, making them suitable for the stage background, exhibition halls, indoor conference rooms, and other curved flexible displays. This design helps to improve the environment and create a special visual atmosphere.

Flexible LED displays are widely used in high-end large-screen display fields indoors, such as corporate exhibition halls, big data display, conference rooms, command centers, TV stations, and more. With their high stability, high refresh rate, high contrast, and other advantages, they are an ideal choice for creating stunning visual experiences.

Compared with traditional LED displays, flexible LED displays are lighter and thinner overall. They are more convenient to install and use and can be spliced into curved screens, cylinders, curved surfaces, and other shapes of display screens, greatly enriching and improving the expression forms of special-shaped screens. This feature provides an important display element for the creative display of the LED display. With the increasing enrichment of people’s lives and the demand for various landscape creations, coupled with the development of emerging technologies

In the past, all the LED displays we were familiar with were rigid. It seemed impossible to combine the word “soft” with electronic displays, but the emergence of flexible LED screens broke this perception. Unlike traditional LED displays that use rigid PCB boards such as glass fiber materials, LED flexible screens use flexible FPC circuit boards, and use rubber materials to make masks and bottom shells, and cooperate with a series of special designs such as special locks and link devices, to ensure the degree of flexibility of the LED display to complete the bending shape that other ordinary screens cannot achieve.

In addition, in the past, the traditional LED display screen was fixed with screws and frames, and other large-scale installation methods, while the installation method of the LED flexible screen is as simple as sticking a piece of paper on the wall. Due to its very light weight, LED flexible screens are mostly installed by magnet adsorption and pasting methods, which simplifies the installation and disassembly process, allowing customers to easily complete the installation work by themselves, which greatly reduces the burden of use.

Such characteristics make it easier to use LED flexible screens when facing some irregular and special positions such as curved walls and columns, which are difficult for traditional LED displays to fit perfectly. If the usual LED display is to be installed on a curved wall, there are generally three methods: make the cabinet into a vertical strip and install it spliced; make the cabinet into a curved one and then splice it; make a special unit, and the screen steel structure also needs to be made into a curved shape. These three methods are undoubtedly very troublesome in production and installation, while LED flexible screens are more convenient in comparison. In view of the above characteristics.

The common application fields of LED flexible screens are also places with special shapes, such as shopping mall columns, bars, stages and so on.

In addition to the above, flexible LED screens have more advantages such as single-point maintenance, seamless splicing, and high efficiency and energy saving, which are not available in traditional LED displays.

Although the current LED flexible screen is still not perfect, we have reason to believe that with the development and improvement of technology and technology, the technical problems of LED flexible screen will be overcome, and the market “blue ocean” of LED flexible screen will become very impressive.

To install an indoor LED display, the commonly used method is to buy frames, modules, cables, power supplies, control cards and other materials to assemble the LED display by yourself, so how to assemble the modules into a whole large LED screen , and use it normally? The installation steps are explained in detail below.

Let’s take the 4800mm*1920mm LED display as an example

First calculate the size:

The size of the full-color modules used in the unit board is 320*160mm, 15 pieces long and 12 pieces high. This color screen shares 180 modules. 320*15=4800mm, 160*12=1920mm,

The net area is 4800mm*1920mm plus 10mm extra head (2mm is used to remove the stainless steel package, and the joint between the board and the frame is 5-8mm. The upper and lower heads can be left on the top and cannot be seen from the front), frame size It is 4810mm*1930mm.

PH2.5 indoor module length 320mm

PH2.5 indoor module width 160mm

PH2.5 indoor module back

Make a structure based on an example of an existing small screen that is being produced. Buy 4 pieces of 4*4 square steel and 4 pieces of 2*2 (6 meters long) from the market, first use 4*4 square steel to make a field frame (can be customized according to your own situation), the size of the large frame is 4850mm*1970mm, because the size inside the small frame is the size of the screen, and the square steel is 40mm, so it is this size.

When welding, use a steel square to weld a 90-degree angle as much as possible. The size in the middle doesn’t matter. After the cross-shaped frame is completed, start to weld small square steel on it. The internal size of the small square steel is 4810mm*1930mm. The four corners and the middle part are cut into small pieces with the remaining 4*4 square steel and welded on to facilitate the cladding of stainless steel.

After the small connecting frame is completed, start to weld the back strips. Use the plate to measure and weld the first two pieces. After finding the size, you can weld all the way down. The back bar is 40mm wide and about 1980mm in length, just weld both ends. The welded frame (the back is pictured) can be installed in the hall. Make two angle steel hooks on the top of the wall.
Welded back strip

Square steel back bar

Fix the welded square steel at the screen installation position

After the shelf is hung, leave a gap of about 10mm around, because the indoor screen cannot be made into a box frame with a fan, and only the gap of 10mm can be used for simple ventilation. When installing the power supply, first connect the two finished power cables. The positive and negative poles of the 5V output must be optimistic, otherwise the power cable, module and control card will be burned. Each finished power cord has two connectors, so that each power supply can carry four modules. Then the power supply is connected by 220V. Use 2.5 square annealed copper wires to string each row together. Finally, a set of 220V power cables is connected to the open terminal of the power distribution cabinet. The cables from the power distribution room to the LED display power distribution cabinet must be arranged before the screen is installed. After the power supply is connected, the control card is installed. The control card here uses a synchronous receiving card. For the layout of the entire power supply and control card, the LED display has a “Power Supply and System Wiring Diagram” before leaving the factory. As long as the wiring diagram is strictly followed, there will be no mistakes. General engineers themselves can also estimate the wiring method based on the number of power supplies and cards.

Here, each card has three columns of modules, a total of 36 boards, so that one card is installed in every three columns, and the card is powered by 5V from the nearest power supply. Pay attention to the positive and negative poles, and then connect the five cards with a network cable. , the network port next to the power connector is the input port, the right is the first card, which is also the head card, the input is connected to the Gigabit network card of the computer, and the output network port is connected to the input port of the second card, the second card The output port of the card is connected to the input port of the third card, so until the last card, the fifth card, the input is connected to the output of the fourth card. The output port is empty.

Stainless steel edging is required before installing the module. This is just for good looks. Some customers also require it to be installed. When doing stainless steel edging, increase 5mm according to the size of the steel structure. The purpose is to facilitate the installation of stainless steel edging and prevent it from being stuck. Stainless steel edging. Here, because the size of the screen is small, we installed the stainless steel edging in advance, and sometimes the stainless steel edging can be installed after the screen is installed, but it should be noted that the first row at the bottom must be level.

After buckling the stainless steel side, start to install the module. The normal sequence of module installation: install from the bottom to the top or from the middle to both sides. There are also many controversies about this installation method. The main purpose of installing from the bottom is to keep the horizontal and vertical within the normal control range, especially when the screen area is large, it is easier to get out of control, especially the requirements for small spacing are higher, and there is a little gap If the requirements are not met, fine adjustments are required. Engineers who have installed small pitches know that even if the precision mold comes out of the module or box, there are still errors. The misalignment of a few wires will lead to the misalignment of the entire row.

Secondly, the installation from the middle to both sides can be divided into two groups or even four groups of people to divide the work and save installation time. Even if there is a problem of installation dislocation, it will basically not affect the progress of the other group of personnel.

Install the cable that comes with the module according to the drawing. The short cable is used to connect the modules. The long cable from the control card to the module should be installed according to the length of the line. The top and bottom are used. The cable is longer, about 1.5 meters long here.

Install LED modules on square steel

LED module long cable

LED module 16P cable

It is best to bring your own tools. If the cable is crushed, cut a new section, press both ends, and then install the fixed clips. Sometimes the back strip blocks the uneven module, and the cable card has to be cut off when installing it. When the cable is plugged into the module, the red edge is upward, and the arrow of the module is also upward at the same time. For modules without arrows, the printed words on the module must be upward. The connection between the modules is that the input at the front of the module is connected to the output at the back of the previous module.

After installing one card of the four-line module, turn on the power and test it. If there is any problem, solve it in time, because if you install another set, it will cover this card and cannot be tested. In addition, if you continue to install, you will not be able to find the problem in time. If all are installed Then, to find the problem, and remove the installed modules, the amount of work will be much larger.

There is a test button on the control card. You can use this method to test first when the power is on. If the installation is normal, the screen will display red, green, blue, line, field, and point information in sequence, and then test the control computer again, mainly To test whether the network cable communicates normally. If it is normal, install the next group until the installation is complete.