Updated news about large led video wall displays from indoor stage rental displays to small pixel pitch high definition led display walls. Stay in tune!
The development of LED display is becoming more and more popular, and the types and models of products are more and more popular. So what kind ofLED digital displayscreen is really good quality and low price? How should we determine whether it is suitable when we choose and buy LED display screen. What’s the right price?
1. Raw materials: बिजुली आपूर्ति (imported or domestic), IC (imported or domestic), LED lamp, PCB board (मोटाई)
2. Driving mode: separation or integration;
3. Light composition: three lights or four lights;
4. Box: simple and standard;
5, ताजा दर;
6, LED brightness ratio; 7. What materials are used for LED lamp feet: iron, copper; 8. LED lamp chip size;
9. Company process flow;
10. Screen function: correction function, current gain, error detection.
in general, we should pay attention to the above ten points in the purchase of LED display screen, because different quality, different product models may not be completely different
The same, but we should pay more attention to the key points when purchasing, especially in the after-sale of the products, because the service life of the products is very long
The length is also an important condition that affects whether we want to buy. If the use time is long and the product after-sale is good, then in the later use is also very convenient.
LED display screen is divided into full-color display screen and single and double-color display screen. It is widely used in some large-scale parties, outdoor publicity and other places, butThere are times when we need a lot of things to be displayed on the screen at different times.
how to achieve this operation? What kind of operation and method are needed? आज, will help you to introduce, I hope you all
We can learn more about it.
first of all, you must know how to change the font of LED display screen. साधारणतया, there are three ways: serial port line, U disk, mobile phone (or remote control). according to the corresponding operation mode can change the character ofP10 DIP LED display screen.
1. Change the word through the serial port line, connect the LED display screen and the computer, open the display control software, set the screen parameters, edit the program font, and click send to change the font.
There is a column in the software menu. Click USB to download and save the setting parameters and contents to the USB flash disk. Use the
U disk copy content to the LED display screen to replace the line.
3. Modify the words of by using the mobile phone (or remote control), you can send and change the subtitles of advertisements by editing short messages; साधारणतया, USB interface and COM interface are used for data transmission of LED display screen. You choose the USB interface to transfer data, modify the display content, like the common
Ledshow2012, ledplay software, and then modify it in the software. And set the screen parameters (this is related to the control card of LED display). Then click USB Download will be modified to download the good content to the U disk. Then connect the U disk to the U port of the display screen.
in general, the adjustment can meet the operation requirements of most LED displays through the above methods, but there may be different models
It’s not the same way. I hope you can learn more about it.
As the LED display screen is often used, many led display customers may think about the price at the first time, but for us as the professional LED manufacturers, the price is not fixed, so why say so? Let’s help you.
After that, we will understand the reason better. So what are the LED display prices divided into?
for LED display screen, the highest price part should be the screen body, because the screen is the most important part of the display screen, generally speaking, the price is
About 80% of them are screens. LED large screen is composed of display module, बिजुली आपूर्ति, box, and power line. Among them, the cost of module is the highest,
The price difference of different lamp beads and chips is also very big!
Part II: LED large screen control system:
[LED large screen] LED large screen play is generally divided into synchronous control and asynchronous control. Asynchronous control is commonly used in single and double color LED display screen
The system is applied in the field of LED full-color display.
synchronous display system is based on the computer synchronization mode. The display screen is connected with the computer by network cable. The synchronization system is composed of sending card and receiving card, and the system is composed of sending card and receiving card
When the area of the external display screen is less than 80 वर्ग मीटर, it usually adopts one sending card and 40-50 receiving cards (two boxes and one card). The indoor LED color screen is relatively systematic
This is slightly higher because its pixel density is much higher than that of the outdoor electronic screen.
Part 3: LED display accessories
for electronic display screen to work normally, it is not enough to have led display screen. Also need some accessories to use, the most basic accessories are: computer(desktop computer), air conditioner (heat dissipation is very important), lightning arrester, power distribution cabinet, audio amplifier (वैकल्पिक), TV card (वैकल्पिक), multi-function card (वैकल्पिक)
Automatic adjustment of display screen temperature, चमक, humidity and other physical data), भिडियो प्रोसेसर (वैकल्पिक), आदि.
the cost of accessories varies greatly according to different brands. It is normal for one of them to have a difference of several thousand yuan, and the display screen manufacturers only purchase on behalf of others
Purchase, do not produce related accessories, so most of the accessories are recommended for customers to purchase locally.
Part IV: LED large screen steel structure, foundation frame.
the general installation methods of LED screen are: wall mounted, floor mounted, inlaid, column mounted and roof mounted. What we see now is the LED screen,
Both the large screen attached to the wall of high-rise buildings and the LED electronic screen of indoor background wall are fixed by steel structure.
The cost of the foundation frame is second only to that of the LED display screen. The price of the ordinary outdoor steel structure is between 1200-1500 युआन / m2
The cost of wall mounted LED panel square pass structure is about 600 युआन / m2, and the cost of Optimus pillar fixed steel structure and column foundation reaches 2000-2500 युआन / m2. by
It is suggested that the manufacturer should provide the construction drawings and the customer can make the welded steel structure locally.
Part V: logistics, यातायात, स्थापना, आदि
हो. In order to protect the safety of the goods, all the goods are made of pearl cotton, plastic film, carton, wooden frame, and the most reliable logistics company in China.
The advantages of LED display are obvious, especially in outdoor places, a good LED display can make the enterprise higher End, a variety of display enterprise characteristics and to promote the content, so many users like LED display screen, so what are the specific characteristics?
LED display screen manufacturers to help you to introduce.
1, advertising content update speed is fast, advertising agents and publishers can update LED display advertising content at any time, only need to operate the control computer, the update process is not subject to other external conditions
Restrictions. तथ्याङ्क अनुसार, large-scale LED displays update advertising content once a month on average, while small-scale LED display screens are less than three or five days and more than a week
Change the content of the advertisement once.
2. Easy and convenient to release information;
LED display screen is the display of a computer, which is connected with the computer through data line connection or wireless communication, as long as it is simply set up in the computer
Set, can be used to publish advertising content, both convenient and fast. [LED large screen]
3. There are various forms of advertising.
LED display screen usually sets up public places and traffic arteries with a large number of people, so as to attract viewers’ active attention with intuitive, vivid and vivid advertising forms
It has a wider range and more compulsory viewing than traditional media. In addition to outdoor advertising, it can also publish information.
4. Energy saving and environmental protection
LED display panel is energy-saving and environment-friendly. It works all day long. It can fully adapt to all kinds of harsh outdoor environment. It has anti-corrosion, वाटरप्रूफ, आर्द्रता-प्रमाण, lightning protection and anti-seismic
Strong performance, high cost performance, good display performance and so on.
Facing the future, with the development of LED display technology, 3G communication technology and other innovative transmission technologies will also be widely applied in the field ofoutdoor media advertising.
LED display outdoor advertising will bring us more wonderful.
Nowadays, the advertisement on LED display screen has become a trend. It has emerged endlessly in the streets and alleys of major cities, and has become more and more close to people’s life, It is also closer to our daily work, so what are the advantages of this led display advertising? What are the disadvantages? How to make this form ofdigital advertisingmore closer to our lives? Here’s an analysis.
1. The advantages and disadvantages of the advertising screen changing mode, which greatly shifts the risk of outdoor advertising media companies. If the profit is not ideal, LED display manufacturers will lose a lot.
With the frequent occurrence of indecent videos, light pollution and noise pollution on outdoor display screens all over the country, the negative risks of LED display screen are caused, And gradually strong. Even the relevant government departments have issued corresponding laws and regulations to limit the number of LED display installation and release, and the approval is more and more strict.
त्यसैले, there are various challenges in advertising screen changing.
2. How to establish a regulatory system?
although the LED display has a good situation in the outdoor advertising market, there are many regulatory loopholes, such as the standard setting of light pollution, the dissemination of content Regulation and so on. हाल, the LED display screen manufacturing enterprises are still in the development stage, and lack of professional media operation experience. It will be a long-term project how to build the industry standard and the evaluation system of LED display media detection system. After all, the audience of outdoor advertising media market Is the majority of people, accept their supervision is also led display enterprises need to consider the problem.
3. From decentralization to intensive
the application space of LED display screen in outdoor advertising market is very large, and many enterprises with scale strength want to get one
अरु के छ त, listed companies are developing high-density and small spacing LED display products to capture this field. In the invisible, each family shows his magic power and seeks for the whole one after another
China’s major monopoly industries cooperate and the market is scattered.
from the perspective of LED display industry itself, the leading enterprises have not yet formed, and several competitive enterprises may become the biggest strong ones, LED display manufacturing enterprises entering the outdoor advertising industry is bound to be decentralized. With the development of LED display enterprises, future integrators will integrate the advantages of capital Source, with the trend of large-scale expansion to occupy the largest outdoor advertising market share.
in a sense, LED display enterprises have stepped into or attached to outdoor advertising media industry, which is a new business model exploration
It is the stage product of LED display industry development. We should see that this mode has a promising profit margin, as well as risks and risks
Challenge. This new mode in the exploration period needs efforts and investment returns to be observed in order to truly mature.
As the most important part of the development of new type advertisement, LED display screen should be understood and paid attention to in detail,
Control system is one of the most important parts, so how can we distinguish these things? आज, I will give you a detailed introduction. The control system of LED display screen control system is also a very important part; द control system of LED displayscreen generally includes synchronous system and asynchronous system.
synchronization system: the LED display is equivalent to a large display, and the contents on the LED display screen and computer display are completely synchronized
The operation is displayed on the LED display screen; if the computer is turned off, the LED display screen will also be closed and no longer display the content; it is suitable for the high real-time requirements occasions, such as video screens, आदि.
DVI display card + 256 gray level control card, control points 1280 × 512, control
The range is Φ 5 – 9.76 m long, 3.9 m high, and Φ 3.75 – 6.1 m long and 2.448 m high.
asynchronous system: the LED display screen and the computer display content are not synchronized; the content to be displayed is sent to the control card after being edited on the computer,
After the control card is powered on, the contents stored on the card can be displayed, even if the computer has been turned off;
It is suitable for occasions with low real-time requirements, such as single and two-color banner screen, playing some notice slogans, आदि;
realizes the function of offline and storing information, while PC only plays the function of modifying the content of LED display screen, and the display function is realized by asynchronous control
The advantage is that a PC can control multiple LED displays, so it can realize multi screen networking. The above is a detailed introduction to the control system.
LED display screen is divided into indoor display screen and outdoor display screen. यद्यपि, no matter what kind of display screen, you need to pay special attention when installing.
This is a kind of circuitLCD display systemthat can’t be collided, so we should pay special attention to the installation of indoor P4 high-definition full-color LED display screen?
1, pay attention to the lightning protection of buildings and screen body: to prevent the display screen from strong electromagnetic attack caused by lightning, the screen body and external packaging protection of the display screen
The layer must be grounded, and the resistance of the grounded line should be less than 3 Ω, so that the current caused by lightning can be discharged from the ground in time.
2. Waterproof, dust-proof and moisture-proof problems of the whole screen: seamless connection should be made at the connection between the box and the box, and the joint between the screen body and the stressed installation object
Avoid water leakage and damp. There should be good drainage and ventilation measures in the interior of the screen. If there is water accumulation inside, it can be treated in time.
एउटै समयमा, it is necessary to select the industrial chip with the working temperature of – 40 ℃, अर्थात्. 80 ℃, to avoid the failure of the display screen to start due to too low temperature.
4. Do a good job of ventilation inside the screen: when the screen is powered on, it will generate certain heat, if the heat can not be discharged, it will accumulate to a certain extent
The internal environment temperature will be too high, which will affect the work of the integrated circuit. In serious cases, it can lead to burnout, so the display screen can not work.
त्यसैले, it is necessary to do a good job of ventilation and heat dissipation measures inside the screen body, and the temperature of the internal environment should be kept between minus 10 ℃ and 40 ℃.
the above four points are to help you summarize some matters needing attention during installation, but the specific situation should also be analyzed in detail, if you have any installation.
When theएलईडी डिस्प्ले स्क्रिनis used, it is inevitable that there are abnormal conditions, such as unstable circuit, insufficient screen brightness, आदि, sometimes it is difficult.
There will be no lighting of the unit board. Here are five ways to check the LED display cell is not bright solution.
1. The whole LED electronic screen is not on.
1. Check whether the power supply is connected to the signal line.
2. Check whether the test can identify the interface; if the test red light flickers, it is not identified. Check whether the light panel is the same as the test power supply ground, or whether the light board interface has signal
No. 1 is short circuited to ground, resulting in unrecognized interface. (Intelligent Test)
3. Detect whether 74hc245 has false soldering short circuit and whether the corresponding enable (EN) signal input and output pins on 245 are faulty soldered or short circuited to other lines.
Find the pin controlling the column on the module and test whether it is connected with the output end of driver IC (74HC595 / TB62726,,,).
With the advent of the information age, LED video walls has become an indispensable part of life. It can be seen everywhere, square stations everywhere. Different LED displays can be seen everywhere at any time.
it is a system engineering integrating optics, structural mechanics, electronics and computer science. तथ्याङ्क अनुसार, all LEDs in China
90% of the display screen has large or small faults. Based on our years of experience, we have summed up the main attribution of these faults, namely
With these, we can control the fault from the source and improve the quality of the display screen. द 80% failure of
LED display screen is caused by the following factors: wiring harness, terminal, connector of AC power distribution, signal and low voltage
DC connection harness and connector, switching power module, fan, plastic shell assembly.
if these interfaces, cables, power supply and bottom shell are not properly selected, the LED display screen will be black or partially black, and the screen will be mosaic
G, no signal, आदि. These are also very difficult to maintain the problem, so we pay attention to it in the production process, reduce the failure rate. Another 80% of the other failures are caused by the following reasons: solder joints, capacitors, terminals on PCBA, LED lights, and the protection of the box
Leakage dust accumulation caused by insufficient protection level, corrosion of hardware and hardware of external leakage screw, and control board card.
Business card printing or software problems will lead to abnormal image display.
outdoor LED display must be designed in strict accordance with the testing standards, waterproof and dustproof, wind and high temperature resistance, otherwise it is easy to appear various kinds of LED display
LED display screen is composed of mask, circuit board and bottom shell. Waterproof glue used for fireproof and moisture-proof LED display screen is also led display screen’s Important components. त्यसैले, the selection of better quality display products, starting from high-quality raw materials.
the mask and bottom shell of LED display screen shall be made of PC glass fiber material with flame retardant function which has passed the quality verification. And the circuit board Black three proofing paint to prevent weathering, corrosion and other issues.
second: to solve the problem of heat dissipation
the larger the area of LED display, the greater the power consumption and the more obvious heating. साथै, the summer sun is violent and the external temperature is high, It is difficult to dissipate heat.
in order to solve the problem of heat dissipation, it is necessary to adjust the external design and internal structure of LED display screen, and adopt hollow design with high density
Precision design circuit board, hollow design, ventilation and light transmission, so that without sacrificing brightness and contrast, wind load can be reduced
Reduce fixed installation cost and improve product stability.
third: installation specification
LED display belongs to high-power electrical appliances and is prone to short circuit. But the real quality of LED display screen from wire to structure
Short circuit should be avoided. यद्यपि, in the installation process, a little carelessness and negligence may cause unexpected danger.
To ensure safety, LED display manufacturersneed to guide the whole process of installation to ensure that the positive and negative poles are connected and the circuit connection is firm.
With the rapid development of LED display screen, large screen system is becoming more and more popular, especially for large parties, concerts and so on.
The demand for large screens is gradually increasing. But in terms of structure, Large screen also has many kinds of classification, are you clear
आज, I’d like to introduce it to you.
The first type is the DLP large screen
DLPlarge screen wallsplicing system. The principle is that the cold light source emitted by UHP bulb is passed through the condensing lens and the light is evenly distributed through rod
Homogenization: the processed light passes through a color wheel to divide the light into RGB tricolor (or more colors such as RGBW),
Then the color is projected onto the DMD chip by the lens, and finally the reflection is imaged on the projection screen through the projection lens.
The second one is the plasma large screen because of its ultra-thin body, large display area and excellent display performance in a variety of environments, the plasma display has become one of the most important types of plasma display.
हाल, the most advanced plasma large screen splicing display equipment. The core component of plasma display is plasma screen, which is combined with BSV liquid crystal.
The difference is that it has some pixels, each pixel unit is composed of red, green and blue pixels, and the inner surface of the outer screen is luminous.
The phosphor is similar to the phosphor in CRT picture tube, which can provide vivid and rich colors.
Very short response time and very wide viewing angle. Each pixel unit is controlled by a separate electrode, and the video signal is transformed.
After that, the electrodes respond, and each pixel can produce more than 16.7 million colors through the combination of three primary colors and different brightness Color.
The multi variable large screen function: single screen split display, single screen separate display, arbitrary combination display, full screen LCD splicing, double splicing LCD.
Mosaic screen, vertical screen display, image frame can be compensated or covered, support digital signal roaming, zooming and stretching, cross screen display.
The setting and operation of display plan, real-time processing of Full HD signal.
the fourth type, LED large screen.
LED screen is a new type of imaging electronic equipment made of light-emitting diodes in order. Because of its high brightness and visual angle
With the characteristics of wide range and long life, it is widely used in outdoor large screen and other products.
Five common installation methods for the led video walls.
1. Mosaic installation: suitable for small indoor screen. Due to the small installation space, in order to not occupy space, according to the screen surface.
The area of the same size is dug out on the wall, and the LED display screen is embedded in the wall.
2. Wall mounted installation: it is mostly suitable for the installation ofindoor LED display, with a small area (less than 10 वर्ग मीटर), and the wall requirements are as follows
Solid wall, hollow brick or simple partition wall are not suitable for this installation method.
3. Hanging type installation: it is mostly used for LED electronic display screen of station, LED electronic display screen of airport and other large places to play the role of indicator signs. Small screen area is required. (less than 10 वर्ग मीटर) it is required to have a suitable installation site, such as a crossbeam or lintel above.
In general, a back cover should be added to the screen.
4. column type installation: it is mainly used for the installation of LED electronic display screen for outdoor advertisement, with wide vision
The surrounding area is relatively open, such as square, parking lot, आदि. According to the size of the screen area can be divided into single column and double column type Installation.
5. Roof type installation: mainly suitable for outdoor advertising LED electronic display, the installation site is mainly on the roof of the building.
With the increase of building height, the wind protection level should be considered.
generally, the display screen we install is mainly used in outdoor and indoor venues, so the above five methods are enough to cope with Most places.
