Archive for month: November, 2021

P8 outdoor surface mount SMD3535 full color LED display project case

Introduction and characteristics of outdoor P8 full-color LED display

Creuview uses high-quality red, green, and blue chips to be packaged in a three-in-one surface mount lamp bead. A three-in-one surface mount lamp bead is a full-color pixel. The surface mount lamp beads are evenly attached to the front of the circuit board at a certain interval and fixed by soldering

The lamp surface of the module is filled with waterproof glue, the back of the circuit board is affixed with electronic components such as driving and control, and then the finished circuit board is fixed and protected with a plastic kit. This is the basic display unit of the outdoor full-color LED display, referred to as the LED module. Multiple modules and waterproof rubber rings are assembled into a single LED box, and multiple boxes are assembled into a seamless LED large screen. The large screen needs to be equipped with a driving power supply and a control system before it can be used.

High display brightness: the brightness can reach more than 8000cd/㎡, so far no outdoor display product can surpass it, and the brightness of the LED display can be automatically adjusted according to the intensity of the ambient light, and the picture quality is clear and bright

Good display effect: Non-linear correction technology makes the image delicate, saturated color, strong sense of layering, smooth and vivid

High resolution: With the continuous breakthrough of outdoor small spacing, coupled with the larger outdoor screen area, the overall screen resolution has reached a higher level, which can more express high-definition picture quality and rich colors

High protection level: waterproof and dustproof design, protection level up to IP65, the selected materials are resistant to ultraviolet rays, deformation, aging, high and low temperature.

Good uniformity: The wavelength deviation can be controlled within ± 2nm, the chromaticity and brightness consistency can reach 99%, the flatness is ± 0.1mm, and the seam gap is less than 0.2mm, so that the color uniformity and consistency are excellent

Convenient operation: It is controlled by commonly used computer operating system and general playback software, easy to learn and understand, and the playback content and sequence can be edited at will

Ultra-long life: LED lamp beads can last up to 100,000 hours. High-quality light-emitting components are the core material of the display. The circuit board design is optimized to fundamentally ensure the life of the product.

Energy saving and environmental protection: LED display light-emitting materials are energy-saving products, equipped with constant current drive energy-saving IC and high conversion rate drive power, and the brightness can be automatically adjusted

Wide viewing angle: large-angle design, high-precision equipment and high-precision production technology, making the horizontal and vertical viewing angles wider

Stable performance: Unique anti-electromagnetic wave processing, distributed scanning technology, and modular design make the reliability and stability higher.

Wide playback content: It can display text, tables, images, animations, videos, etc., equipped with power amplifier and audio to synchronize the picture and sound, equipped with a TV box to rebroadcast TV programs, and equipped with a video processor to achieve live broadcasting

Multiple control methods: equipped with different control systems, which can realize synchronous control, asynchronous control, wireless control, network control, and remote control

Various shapes: rectangles, squares, arcs, circles and other customized designs can be made

Convenient maintenance: Modular design is adopted to make maintenance and replacement of spare parts convenient and quick.

P2.5 Full Color LED Display HD Small Pitch Project Case

Recently, there was good news. The P2.5 full-color LED display produced by CREUVIEW and installed in Xi’an Chanba Ecological Park was completed. The expert’s acceptance was fully qualified and passed smoothly. The user is very satisfied and gave CREUVIEW’s high-definition LED display. It is highly recognized.

   Among them, not only our products are praised, but also the vigorous and dedicated work style of the engineers and technicians shocked the customers. The customer of this project has been hesitant in the procurement comparison process. The poster customer sent someone to visit the company’s production scale and strength and product quality before signing the procurement contract. This resulted in a very tight construction period. When I arrived, I rushed to the project site and worked overtime all night to install and debug, which was completed one day earlier than the scheduled construction period. The customer was impressed by CREUVIEW’s engineering services.

 P2.5 high-definition small-pitch LED full-color display, produced with imported brand chips, high-brush driver IC, and special anti-shadow circuit design. Effectively eliminate moiré, wide color temperature adjustment, low brightness and high gray effect, high refresh rate, non-reflective, ultra-high resolution, realistic color reproduction, seamless vision, nanosecond response speed, low power consumption, ultra-quiet And other advantages. Widely used in electric power, civil air defense, transportation, radio and television, public safety, conference rooms, water conservancy and water affairs, tobacco and other industries: indoor control rooms, large conference centers, security monitoring, production emergency command, large-scale performances, competitions, radio and television industry background walls , Commercial brand display, public information display, etc.

Outdoor full-color LED display lightning protection treatment

1.Protection against direct lightning strikes: Install lightning rods on the support structure of the LED display (outdoor), indoor LED displays or LED displays with tall buildings next to them, you do not need to consider installing lightning rods.

2.For the counterattack of the steel structure, connect the rigid structure to the housing of the LED display screen, equipotentially, and ground. The grounding resistance is generally required to be less than 10 ohms. If the resistance does not meet the requirements, additional The artificial grounding grid. The lightning arrester should also be well grounded.

3. For the lightning current induced on the power line, install a single-phase or three-phase power surge protector on the power line. The cross-sectional area of ​​the link wire of the phase wire cannot be less than 10mm square, and the cross-sectional area of ​​the ground wire can not be less than 16mm square.

4.For the lightning current induced on the signal line, install a signal lightning protection device on the signal line. The signal lightning arrester is determined according to the signal interface of the system. If it is a network cable, install a network signal lightning protection device, and install a DB9 interface lightning protection device for the serial interface. The cross-sectional area of ​​the ground wire cannot be less than 1.5mm square.

5.For the induced current of lightning strikes, a unified dedicated professional distribution box and power distribution cabinet can more comprehensively and effectively protect the entire circuit system from the interference of the lightning induced current.

Outdoor full-color LED display heat dissipation treatment

NO. one, LED display within 20 square meters

   Generally, no air conditioner can be used. If conditions permit, two fans with a diameter of about 500mm can be used, depending on the size of the installation space.

NO. Two, LED display screen with more than 20 square meter

1.If the LED display is installed against the wall and can protrude by one meter from the wall, it is recommended to choose the fan according to the area, and the fan should be installed in sequence above the side of the screen. If you buy an outdoor full-color LED screen with a ph16 of 80 square meters, it means that the fan you buy requires 6 axial fans with a diameter of about 600 mm. Make sure that there is a net inside to prevent the technician repairing the display from sucking in clothes and other things when repairing the display to prevent personal injury. For waterproofing, install the air outlet of the fan on the outside aluminum-plastic panel Aluminum shutters. The wall-mounted LED display screen can also be installed with air conditioners. Ensure that there is enough space for the air conditioner host without affecting the overall appearance of the wall. The choice of air conditioner is required. Generally, 1.5P, 2P and 3P air conditioners are used the most. Northern cities use 12 square meters of 1P air-conditioning calculations; southern cities use 9 square meters of 1P air-conditioning calculations. If the area of ​​the LED outdoor display is relatively large, the air conditioner needs to be customized; if the area is not large, you can buy it at a specialty store, but you need to buy a display cooling air conditioner with call compensation function.

2.If the LED display is installed on a column, a fan can be used to dissipate heat. The fan is installed on the top of the aluminum-plastic panel on the back of the large screen and made into blinds so that rain does not enter the display when it rains. If it is a double-pillar LED display, you can open several blinds in the middle of the double-pillar. This Baiye window is the air inlet, and the fan above is the air outlet, so that complete air convection is formed and the heat dissipation effect is better.

Chaos in competition among full-color LED display manufacturers

Full-color LED display manufacturers say that the industry is not easy to do, in fact, there are many aspects, but the most critical point is the confusion of market prices.

The larger manufacturers are those listed companies, and their energy is devoted to making some small-pitch LED display products. For one thing, the small-pitch products raise the barriers to entry. If you want to produce small-pitch LED displays, then It is necessary to have the material conditions for the production of small spacing. First of all, technically this condition, and the technology also needs the support of machinery and equipment. Some small manufacturers are trapped in not having much capital to purchase equipment, and the profit of small-pitch products can be profitable. To reach the height reached by ordinary products, this is their profit growth point. Some large listed companies will share this cup of pie, and there is not much time to make conventional products.

In addition, some midstream manufacturers have higher prices, but they are relatively low and not much lower than those of listed companies. Some midstream manufacturers have inventory. Listed companies can advance funds to do some projects, but these companies can’t do it. Now that labor costs are rising year by year, some midstream companies have a very difficult time. The increase in raw material costs (the price of raw materials purchased by the month is about 3-5 points higher than the price of raw materials purchased in cash) This has led to the middle and upper reaches of the LED display. The development of the enterprise encounters big problems. If the suppliers come to ask for money together, they will go bankrupt without too much money to advance. Only by raising the price of the product to increase the profit brought by the display product To maintain the difficult development of the enterprise, the price of such a manufacturer is higher.

There are also some manufacturers that specialize in wholesale. Wholesale may be equal to the price. No business man in this society can truly tell you from the heart that I sell this thing to you, and I don’t make a penny. I owe it to you, as long as a businessman tells it to anyone, no one will believe it. The raw materials they use can tell you here, but they only do wholesale and will not care about your after-sales service. Take the ph10 outdoor full-color screen as an example. LED lights are the key to large LED screens. In the cost of raw materials, they account for 50-60% of the cost. Which of the better lights in Shenzhen’s packaging factory has a relatively ordinary price. The price of the packaging factory is 300-800 yuan per square, and the driver IC is even more informative. Nowadays, the most popular in the market is to sell under the brand of a certain brand in Taiwan, but in fact the appearance is used. The same other unbranded ICs have the model of a certain Taiwanese brand written on them. This cost can also be saved. The article on the circuit board is probably the thickness of the wiring inside the circuit board. If the thickness does not meet the requirements, the screen will In the use process, the wires are interrupted. If there are fewer wires on a board, you can fly a few wires out and connect them outside. If there are more, the module is basically scrapped.

There is also the cable. You can take a closer look at all the manufacturers who do wholesale. They are basically copper-clad aluminum cables, and more aluminum cables. This kind of wire will heat up during use. If you don’t believe it, you can try it yourself. Click; there is also the cabinet. If you buy a small display, it doesn’t matter. If you buy a large-screen cabinet, it’s fine. Generally speaking, the thickness of the cabinet should be at least 1.2mm or 1.5mm. The industry uses a 0.8mm box, is it easy to deform? Think for yourself! The quality of the mask and the kit is the most direct thing is the mosaic of the mask, the deformation or even the crack of the kit. The quality of the glue does not have much impact on the price of the LED display. If you install the screen in a foreign project or close to a place with heavy humidity, you want to consider using steel for a mask screw. By the way, the market should not be obsessed with the LED light-emitting diodes of all-chips given by manufacturers, so I won’t say much here. Creuview insists on selecting stable brand materials, reliable product quality and stability to ensure long-term stable use by customers.

Features of stage rental led display box

Light weight: the box size is 576*576mm, the weight of Creuview per square box is only about 24kg, and the single box weighs only about 6.8kg. A single person can carry it with one hand, and the rental led display screen can be used to build a stage to save installation time;

Thin box body: The box body is made of die-cast aluminum, with high strength, strong toughness, high precision, not easy to deform, and its thickness is only 80mm;

The led display body is flat: the surface flatness error is less than 0.2mm, and the picture is clear and delicate without burrs;

Fast disassembly and assembly: the box body is connected with a quick locking mechanism up and down, and the two handles can be turned 90 degrees to lock the two boxes. The installation of one box can be completed in 10s, and the installation accuracy is high. The box splicing and wiring connection are fast and reliable, which is beautiful and beautiful and can be quickly assembled and disassembled in the true sense.

Easy maintenance: modular design, easy installation and disassembly at any position of the assembled screen, and simple maintenance.

Strong compatibility: The new structure design meets the requirements of hoisting and stacking, and meets the requirements of indoor and outdoor. The cabinet is singular, compatible with multiple pitches, and compatible with indoor and outdoor modules.

High refresh and high gray: high gray and high refresh rate design, gray level 16 bit, refresh frequency>960Hz;

Low cost: Excellent heat dissipation design and heat dissipation performance, without external fans, air conditioners, etc., low noise; light weight of the cabinet, low installation costs; low power consumption of the cabinet, saving operating costs.

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