How can the outdoor LED display be effectively cooled

LED display pixels due to intensive heat itself is large, long time outdoor use, the internal temperature will gradually rise, especially in a relatively large area of the outdoor LED display heat dissipation becomes a must pay attention to the problem, LED display heat indirectly affect the service life of the LED display, or even directly affect the normal use and safety LED display. How to dissipate heat has become a problem for display.
When choosing the heat dissipation mode, the following factors should be considered: heat flux, volume power density, total power consumption, surface area, volume, working environment conditions (temperature, humidity, air pressure, dust, etc.) of LED display.
According to the heat transfer mechanism, there are natural cooling, forced air cooling, direct liquid cooling, evaporative cooling, thermoelectric cooling, Heat pipe heat transfer and other heat dissipation methods.

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Design method of heat dissipation for outdoor LED display
The heat exchange area of the heating electronic component and the cold air, and the temperature difference between the heating electronic component and the cold air, directly affect the heat dissipation effect. This involves the design of air volume into the LED display box, the design of the air duct. Ventilation duct design, as far as possible the use of straight pipes to transport air, to avoid sharp bend and bend of the pipe. Ventilation ducts should avoid sudden expansion or sudden contraction. The extended angle should not exceed 20o, contraction of the cone angle of not more than 60o. The ventilation pipe should be sealed as far as possible, all the lap should flow along the direction.
Outdoor LED display cabinet design, there are several points to note
The intake holes should be set on the lower side of the box, but not too low so as to prevent dirt and water from entering the box which is installed on the floor.
The vent shall be mounted near the upper side of the cabinet.
The air shall be circulating from the bottom of the cabinet, and a dedicated air inlet or vent shall be used.
The cooling air shall flow through the heating and electronic components, and the air flow shall be prevented from short circuited.
The filter screen shall be installed in the air inlet and outlet to prevent sundries from entering the box.
Natural convection should be designed to aid forced convection
When designing, make sure the intake port is far from the exhaust port. Avoid repeated use of cooling air.
Make sure that the direction of the radiator is parallel to the direction of the wind, and that the alveolus of the radiator does not block the air path.
Fan installed in the system, due to structural limitations, the air inlet and outlet are often subject to a variety of barriers, and its performance curve will change. According to the actual experience, the fan inlet and outlet is best to have 40mm distance from the barrier. If there is space limitation, there should be at least 20mm.
Outdoor LED display maintenance program, a good heat dissipation measures, two is to use, should avoid improper operation. It is generally recommended to configure fans or air conditioners to enhance heat dissipation.

Optokingdom also want to show you some led displays use for outdoor without worrying Heat dissipation problem. this type of led display is no fan design, low temperature operation, quiet no noise, Ultra-thin box, easy to transport, installation and maintenance. As the pic show.

Wireless cabinet outside, good looking

If you need any such led display solutions and question, please feel free to contact us or visit: Led Strip Curtain Display

Quick Install LED Display Tips

1, check the power supply voltage, find the DC positive and negative connection switch power supply, connect the 220V power line to the switching power supply

2. Turn the power off first. Connect the V+ to the red line, the V- connection, the black line, respectively, to the control card and the LED unit board, the black line access control card and the GND of the power supply. The red line connects the control card to the +5V and the VCC to the cell board

3, connection control and unit board, with good cable, connection. Pay attention to the direction, you can’t answer it

4, connect the RS232 data line, the data line to a head connected to the computer DB9 serial port, the other end is connected with the control card, DB9 5 feet (brown) connected to the control card GND, DB9 3 feet (brown and white) connected to the control card RS232-RX. If your PC does not have a serial port, you can go to the computer city to buy a USB to RS232 serial conversion line.

5, again check the connection is correct, black line connection is -V and GND. The red lines are +V and VCC +5V.

6, connect 220V, under normal circumstances, the power light, control card bright, the screen has shown. Check the connection if it is not normal. Or check for error checking

7, open the downloaded software, set the screen parameters, send subtitles.


How to Use Notebook System to Control LED ad Screen

Senior technical personnel in general LED display industry all know, LED advertising screen to show the performance and effect is high, but for the convenience of control LED screen control system should have input and output interface and remote communication function is enough. The system structure of our LED based ad screen controller based on HDMI1.3 technology. The system can be divided into 6 types: analog input, 1 way VGA input, 2 DVI input, state indication, real time clock, and optical fiber data transmission model.
At present, the LED advertisement screen mainly has two kinds of synchronous display and off-line display according to the data transmission mode. LED advertising screen control this is a synchronous display system, which uses a set of embedded system for LED screen video source, which can reduce the cost, but also has feasibility and high flexibility, easy construction. Independent video LED advertising screen system is completely out of the control of the computer, and it can realize communication, video playback, data distribution, scanning control and other functions. Since the controller is controlling the large frame data, it is necessary to allocate the data provided by the video source, and send the data from different ranks into different controllers.
The data correction module receives the input data from the front end and stores the data by point by point correction, and then stores the data in SDRAM. The field data is then divided into 8 groups and sent to the LED ad screen distributor at the same time.
FPGA according to the timing relationship, the input data is read into the next step. Because the parameters of the LED advertisement screen can not be exactly the same in the process of production, the LED tube must be filtered to obtain good image display effect.
When the data is assigned, the signals are transmitted in the form of LVDS. Because this system uses MCU+FPGA structure, thus realizing network remote operation of the real, not only can be used as a LED screen controller, the display will be more nodes to form a large outdoor advertising media network. According to HDMI technology to control LED advertising screen, the brightness is appropriate, the use of fine resolution, high field scanning frequency, high pixel, can be used for outdoor broadcast level applications. The design through single point correction, which allows buyers to relax the LED in brightness and color requirements, and related procurement costs will also be reduced.

Outdoor LED display Common Models And Purchasing Skills

Customers want to buy outdoor led display, would care for the model, and the installation environment, price etc.. Conventional methods are based on visual distance and screen size to determine the model, that would be cost-effective. How? Below article optokingdom will show you clearly.

First of all, the common outdoor LED display models include: P6, P8, P10, P12, P16, P20 and so on. You will have doubt, what the meaning of this P and the original P is behind the figures? Point spacing, the numerical concrete spacing unit, mm.

Such as P6 and P8, P6 outdoor LED screen spacing is 6mm, P8 screen is 8mm. And the smaller the figure behind P, the more pixels in the unit area, the clearer the picture. P6 pixel density of 27777 / square meters, P8 pixel density of 15625 / square meters, so the picture is more clear than P8 P6. Watch distance (sight distance) near the election of P6, P8 or P10, watch distance (sight distance) far from the choice of P12, P16.
Outdoor LED display size is generally customized, demand more, before you install, consider the following points:

1. screen installation: wall or column type?

2. screen area: you need to know the length, width and size of the screen.

3., to do the display, mainly used to show what, what special playback requirements?

4. display model: according to size, installation requirements, the environment to provide advice, will provide CAD construction design paper, guarantee the effect.

5. site environment photos: provide photos,

6. provide the viewing distance after the LED screen is installed. This is very important, as has been said above, near the distance from the point of view of the choice of small outdoor LED screen, such as P8, P10, far sight from the choice of P16, P20.

In addition, if you have any other outdoor LED display technical parameters, product solution, design proposals and quotations or other issues, please contact us or visit optokingdom.

How To Choose The Stage LED Display

The stage LED display is now widely used in concerts, TV programs and large-scale performances, and the performances and effects of the above show are shown on the big screen. The content is rich and colorful, and the effect is vivid and realistic. How to choose? Optokingdom answers for you.

Stage LED screen selection skills:
1. If stage use, temporary meeting stage, Interior and exterior stage of wedding ceremony, the general requirements of soft light, the viewing distance is relatively close to the range of about 5 meters, this time to consider the display, installation is convenient mobile problems such as accuracy, shooting out of the picture, can choose the models P4 and P5.
2., If for the stage performance use, the first consideration is the model P4 indoor LED display, whether the audience or the stage performers can clearly see the screen display. When the budget price cost overruns, and then consider the P5 led display, but in the 3 meters in the visual range display effect is quite different, P4 will be more hd.
Above is the Shenzhen LED display manufacturer optokingdom on stage LED screen size and selection skills, for more relevant information, please contact us or visit website www.optokingdom.com. With the further development of domestic culture and entertainment, the stage LED display will only become more and more popular and appear in our daily life.

Optokingdom engineer teaches you how to Troubleshoot your LED screen

When using LED screens it is inevitable to face some problems sometimes. Now Optokingdom engineer would like to tell you how to distinguish and determine the LED display fault diagnosis.

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1.Check if the graphic card settings is well or not, according to the instruction in the CD-ROM electronic file.

2. Check the basic connection of the system, such as DVI cable, network cable, the sending card and computer PCI slot, and the serial cable connection.

3. Check if  the computer and LED power supply system have met the needs or not. When the LED screen’s power is low, the LED screen flicker when it show only white color. You should use appropriate power supply according to the actual needs.

4. Check whether the green light of the sending card has a regular flashing, if flashing see next Step 6 directly, if not flashing, restart. Before entering the win98 / 2k / xp please check the green light is flashing regularly or not. If  flashing, please turn into Step2, to check if the DVI cable is connected properly. If the problem is not resolved, then there must a problem of the sending card, the video card and the DVI cable. please repeat step 3 after replacing one of them.

5. Follow the instructions of the software to set or re-install and then set until the sending card green light flashes, otherwise repeat step 3.

6.Check whether the green light (data light) of the receiving card is flashing synchronously with the green light of the sending card. If it blinks turn to Step 8, check that the red light (power) is on. If it is on please turn to Step 7, If the power supply is not on, check if the power supply is reversed or the power supply doesn’t have output. If the power supply voltage is 5V, turn off the power supply, remove the adapter and cable to try again, if the problem is not solved for the receiver card failure , Replace the receiving card, repeat step 6.

7. Check whether the network cable is connected well or too long (you must use the standard CAT5 network cable, the network cable without repeater is the longest distance and 100 meters). Check whether the cable is made according to the standard (see the system installation and setup ), If the problem is not resolved to receive card failure, replace the receiving card, repeat step 6.

8. Check if the LED screen power light is on. If not, go to step 7 and check that the interface of the adapter card matches the LED module.

More Troubleshooting tips about your led display please visit our website http://www.optokingdom.com/user-manual.html

We are the most trusted online store for HSTV LED Display,LED screen,led wall,led signs and led panel. We offer the highest quality of LED Screens, Displays,signs,panels suitable for both indoor and outdoor advertisement.

HaiSheng LED CO.,LTD Teach You to Identify LED Display Quotation Avoiding Unreasonable Price

When buying a led display, we always ask a quotation as a reference, so that can estimate the project cost and know whether the budget is overrun.

With years of experience, HaiSheng LED CO.,LTD here will give you details of the LED display quotes included cost to help you buy LED screen with a clear and intuitive understanding.

p10 led display P6-Module-64 x32 (3)

1. The Screen body cost: Is generally based on how much money per square meter, that is, you can see LED display offer xxx $ / m2, different display model, the materials used, the price will be different. Screen quotation includes a full set of LED screen required: die, module circuit board, IC driver chip, power module, steel box and plastic mask and display all internal flat cable, connecting line and so on.

2. Control system costs: Sending card and receiving card costs, one screen is generally only use a sending card, installed inside the host computer, There are countless receiving cards. The number of control card is determined according to the size of the screen. Generally speaking, the larger the area, the higher the density of the display, will use more receiving cards.

3. Control computer: control LED display of the necessary equipment, requires configuration requirements or higher: dual-core CPU, 2G memory, 512M or more discrete graphics, motherboards have PCI slots.
(If you already have one, you can ignore this part of the cost)

4. Sound + Amplifier: Let the display sync video playback sound of the equipment, generally equipped with an amplifier, 2 stereo.(not necessary,basis your real need)

5. Power distribution cabinet: Small area LED display doesn’t need to use; recommended using on the display with maximum power consumption of more than 10KW power ,It can Provides a voltage source current for the operation of each device of led display, effectively prevent the display power switch for the jump Box and other failures.

6. Air conditioning: cooling equipment, traditional outdoor LED display more than 20m2 manufacturers must be configured by air conditioning to ensure the normal operation of the screen body and extend the life of the display device. Large indoor display screen is strongly recommended with wall-mounted air conditioning, effective cooling, to ensure that the normal high-temperature display under the line, reduce the failure rate.(HaiSheng LED Co., Ltd launches several new product auto cooling such as Led Strip Curtain Display, Decorative Aluminum Led Curtain Screen, Transparent LED Display, they Do not require air conditioning cooling)

7. Multi-function card: Indoor led display, the main role of sub-time intelligent adjustment led full color display brightness, temperature and other values, intelligent regulation to achieve energy saving, extend the life of led display; outdoor led display do not need to use .

8. Arrester : Usually use on outdoor LED display, mainly anti-lightning protection devices; indoor led display do not need to use.

9. Video capture card: TV card, a small card, installed in the computer, coupled with the appropriate driver software that allows the display simultaneously broadcast cable TV channel programs, buying or not it depends on the user’s needs, inexpensive.

10.LED video processor: Mainly to improve the large overall display and functional applications, and fully tap the value of the display. To solve a variety of video signal access, processing and display problems, to complete the format conversion between the many signal formats. LED video processor brand and model number, price varies.

11.LED playback software: including computer system software, LED video player software. It’s free.

12.Freight: Different countries, different product weight, will lead to different costs, I believe that the majority of customers can accept.

The above is about the led display cost should include in the quotation.Knowing these can avoid you from price trap.


HaiSheng LED Co., Ltd – Market Leader Among LED Display Screen Manufacturers. Supplier of outdoor & indoor LED Display Various Types to Meet Your Choice.You also can visit our one-stop online shopping mall optokingdom.com to check led display price directly, Estimate project cost by filling in width and height of screen, system will automatic estimate cost for you.
We offer Project Free design for our customer,specific solution sent to you by filling project information on it. Visit this page:

All we do is offering time saving, safe, convenient and qualified one stop service to our clients.

Russian customers buy led screen what should pay attention to

If some friends from Russia who want to buy led screen from China, what they should pay attention to ?

Recently we deal with a dear customer from Russia, he want to buy one piece of outdoor adverting led screen, from we talk about the project to discuss how to do custom clearance, I have learned much, here I share this story with you.

1. Because the lowest temperature of Russia can be -40 degree, that is a big challenge for led screen (normally the led screen’s working temperature is -20 to +60 degree).
So, the led lighting mask, led module bases, even signal cables, electronic cable, we used useSpecial material which has good unti-low temperature function.(LED lighting is no problem.)
2. We hard better choose some power supply with better quality, and make sure that power supply can be worked on -40.
3. If you use the normal power supply, there should be air-conditional to make the temperature higher, then you can operate the led screen.
4. The custom clearance is very strick, the control system and the led display need to be separate, and some electronic parts should with the required certificates. When supplier really for ship cargo,making sure each case with the same cargo, and that is very easy for people to check it.
Our product Led Strip Curtain Display and Decorative Aluminum Led Curtain Screen are Special design for these cities.Top material can protect it better.All they are Anti-low Temperature and Energy Saving.

10 tips for first time LED wall screen buyer

When you face the LED wall display Screen industry for the first time, you are most probably overloaded with technical information, promises and ideas that are passed to you as hard facts.
The series of articles described below will explain how to avoid the most common, painful and expensive mistakes people make when buying a LED wall screen.

1.Nichia LEDs…or Not?
Some “manufacturers” promise you they are using 100% Nichia LEDs… but they are promising the impossible. Here’s why they are lying and how to recognize them..
2.Dedicated Proprietary Control System
It actually sounds very professional, but this fancy denomination hides some serious drawbacks that nobody ever tells you, until it’s too late.
3.LED Screen in Franchising
Very interesting proposal. If you are a novice in the industry, the low initial investment can be very tempting… but not all that shines is gold! Here’s the nightmares stories of entrepreneurs that already tried it before you.
4.Resellers : Watch Out for their Conflict of Interest
On the market there are several options if you want to buy a LED wall display screen, but not all are manufacturers… Here’s what you risk when buy from a reseller that has a conflict of interest in providing you the best equipment and how to recognize them..
5.Air Conditioning: How to Solve a Problem at Your Expenses
Sometimes you might be told that you need to install the air conditioning on the screen, at any cost. While this makes sense in tropical areas, it is un-necessary for moderate climates… so why insisting? Here’s how they are trying to solve their problems at your expenses.
6.Prices Drops Dramatically before Closing the Order
Of course it is normal a little discount to seal the deal, but sometimes you‘ll see prices drop dramatically (over 30%) when you are pressured to close the order. Here’s why they are surely cheating you.
7.Best Quality at Lowest Prices, Thanks to Big Volumes?
Someone claims to use the best components on the market, and still be able to provide the lowest price on the market. Of course this sounds so tempting, and you wish it was true. But when you think about it rationally, this does not make sense. Here’s why it’s not possible.
8.The Photo-Book
This is a classic “hard-sell” technique, used in many Industries. When visiting a supplier, they will show you a photo-book where there are several nice pictures of what they claim to be their product and some ugly pictures of what they claim to be their competitor’s product. Since this strategy can be counterproductive, it is used only with Customers that are considered less competent, since they won’t notice some incongruences… that we’ll explain into details.
9.“I Am the Real Supplier”
Some companies might claim to be the “supplier” of the company you are dealing with or – as a variant – they might claim (1) to have the same control system, (2) the same software, (3) to have “Italian Heart Inside”, or (4) even to have shares in the competitor company. Here’s how to recognize them.
10.Are You Getting the Same Product You Were Shown?
This is not a selling technique but a real scam, and you could take legal action against it… but prevent is better than cure. Here’s how it works: you could be shown (and then purchase) a digital billboard with a smaller resolution than declared. For example, you could be shown a pitch 6/12mm and told that it is a pitch 8/16mm… Here’s how you can make sure to get what you saw.

How to solve the problem of LED displays not synchronized play?


This led display has 2.58 million pixels total controlled by 2 sending cards. And the image can’t synchronize play on one screen. The splice image is delay on one screen.

This problem general related with video source and sending card. You need to check whether the input signal work correctly and the sending card turn on “half-frame output” model or not at this moment. The sending card will turn on “half-frame output” model when the total pixels over sending card loading pixels.

The led display can work correctly for a period of time but the delay will happen after restarting led screen.

Actually it is very easy to solve this problem. You just need to add more one sending card to control and turn off the “half-frame output” model that would work correctly.