51 Single Chip Microcomputer to 16 Control Design of 16 Dot Matrix Display Screen

1. Functionsixteen The learning board of 16 dot matrix display screen is shown in the figure below. Each lighting degree of LED display screen is uniform and sufficient, which can display graphics and text. The data code can be obtained through text image modeling software, which can display all kinds of graphics or text. Stable, clear, no crosstalk, graphics or text display can be static, moving in and out, etc.2. Basic principles

51 Single Chip Microcomputer to 16  Control Design of 16 Dot Matrix Display Screen 1

sixteen The 16 dot matrix uses four 8 8 dot matrix screen assembled, 8x8 dot matrix LED working principle description: 8 The 8-dot matrix consists of 64 light-emitting diodes, and each light-emitting diode is placed at the intersection of row line and column line. When a corresponding column is set to 1 level and a row is set to O level, the corresponding diode will be on; Therefore, a cylindrical bright method should be realized. The corresponding column is a vertical column, or the corresponding column is a horizontal column. Therefore, the method to realize the brightness of the column is as follows:

A vertical column: the corresponding column is set to 1, while the row is realized by scanning; A horizontal column: the corresponding row is set to o, while the column is realized by scanning. There are many methods for dot matrix moving display. The simplest method is that you first mark the serial number of each point of your dot matrix, then draw the changed dot matrix diagram, find the corresponding points, and then summarize the rules, so that you can write any screen transformation. For example: 16 Move the 16 dot matrix left, take the font from left to right, from top to bottom, then move is to move the next column to the previous column. The row drive adopts 7411c154 (4-16 line decoder) and PNP triode. The column driver uses 74hcc595 shift register to connect the control bit level to the single chip microcomputer, and each 74h1c595 data input terminal is connected to the single chip microcomputer separately. sixteen The 16 dot matrix module consists of 4 small 8 8-dot matrix modules are assembled through cascade connection, with 16 rows and 16 columns in total.

There is STC89C51 single chip microcomputer chip on the board. Support serial port ISP online download, 4 8 8 dot matrix display module (forming a 16 16 dot matrix), the whole board can be expanded into 16 8 8 dot matrix display module (composed of four 16 16 dot matrix, up to 4 Chinese characters displayed at the same time), 4-digit key input, a manual reset key and buzzer.

GET IN TOUCH WITH Us
recommended articles
FAQ
The Benefits of 12 Inch Touch Screen Laptop
The Benefits of 12 Inch Touch Screen Laptop
What is 12 inch touch screen laptop?Capsule computers are designed to be smaller than 3 inches and contain fewer pins. The big advantage of 12 inch touch screen laptops is that they are smaller than their bigger size. They also have the option of adding extra hardware to the computer so that they can use it more efficiently. In addition, you can add more processors to the computer so that you can do things like read/write faster and write more efficiently. With a 14 inch touch screen laptop, you can also add graphics cards so that you can display your photos and videos faster.Touch screen laptops are one of the most popular laptops on the market. It is easy to use and they have built-in memory and processor, so you can take it with you wherever you go. There are also several apps that are available that are similar to your mobile device, so you can use them as a video call or surfing the internet. You can use them as a desk lamp or a computer monitor.Cards and passports are more often used by workers than the old ones. But there are many other types of people who use computers to do work that they don't need. They have different jobs and so many other things that they need to do. One of the most important things that you can do is buy a new laptop and start using it as a desktop computer. You can get one at a time, but if you are looking for a cheap laptop then this is the way to go.It is an extremely common mistake that people make when they purchase new laptops. When it comes to purchasing a new laptop, the first step is to get a certified engineer who will be able to help you with any questions you have. They will give you some ideas on what you need to know before you start working on your laptop. There are lots of things that you can do to make sure that you are getting the best possible deal on your laptop.History of 12 inch touch screen laptopFor many years, a 15 inch touch screen laptop was used as a standard desktop computer. Nowadays, most people use it as a personal computer and are looking for a more advanced version of their mobile device. However, people who are using the laptops for daily living and studying can also use it as a gaming device. People who are not using the laptops for studying can also use it as a game console or other peripherals.When you have two different screens in your computer, you can tell that they are the same. If you are using a tablet or laptop computer, the software will not work properly. They have to be connected to the internet and their processor is slow. This makes them very hard to use. If you have an Android device, you will need to use a 13 inch tablet or a 14 inch tablet. It is possible to connect your Android device to the internet and then connect the device to the internet.Cards and papers can be purchased for personal use or school supplies. It can be used to make letters, videos, photos, audio and documents. They can be used to print out photographs, draw diagrams and work on large projects. The technology is currently being used by organisations such as universities, business schools, home appliances, furniture manufacturers, financial institutions, etc. It is available in different colours and sizes. There are several options for writing notes and using pictures.You can now get your hands on a 13 inch touch screen laptop and learn how to use it in different ways. You can also find out how to connect to your computer using a USB cable. A 15 inch touch screen laptop is perfect for both beginners and experts. It is designed to work on any device, and you can even set it to run on your computer monitor. This device also has built-in Bluetooth technology that enables you to listen to music while connected to your computer.Types of 12 inch touch screen laptopThe new 13 inch touch screen laptop is actually one of the best devices that we have seen in the market. With its slim and lightweight design, it's perfect for everyday use. You can take it anywhere you want with you to go. This device is perfect for laptops because it has an impressive display, but also has some serious drawbacks. They are very thin and small and they also make it difficult to move around easily. They also make it difficult to hold your hand or put your hands on your eyes. The keyboard and mouse also make it difficult to carry around your phone.Most of the people have different problems with their computer because of lack of control over their computer. There are two main types of touch screen laptop that are common and easy to use. The first type of touch screen laptop is a 4K touchscreen laptop that can provide quick access to documents and emails. The second type of touch screen laptop is a full-screen laptop that can provide instant access to documents and emails. It can provide video, photos, etc. A great user interface is very important and it is also very important to be able to get some information from the pictures.12 inch touch screen laptop has been used by many people. Some people use it for watching movies, playing games, or chatting with friends. The problem with these types of laptops is that they can't work as well as they used to. If you are not careful, you will end up with an uncomfortable experience. In order to prevent this problem, 12 inch touch screen laptop manufacturers have tried to be more creative in their designs. They have made some new versions of the keyboard and mouse that can work on most screens.Benefits of 12 inch touch screen laptopWe are all connected to a network, so we have to connect to our computers via wired connections. If we connect to our computers via wireless connections, we have to be careful when we connect to our computers because they can cause us to lose connection to our computers. This is why we need to make sure that we use the right tools for our needs. We need to be able to access our computers from a remote computer and so that we can do things like share files or log in from the internet. It is really important to know how to use the computer properly.It is difficult to tell what is going to happen to your computer when you are running a laptop. The most important thing is to keep your computer as small as possible so that it can work properly when you are running your laptop. You should always check that your computer is in good working condition before you start using it. It is best to check that the computer is not damaged and if it is, then it should be checked for damage.Apples newest iPhones are available in both new and standard colours. However, it is important to note that these laptops are very expensive and not all laptops are created equal. These laptops can be used by people who have no handsets and want to work on their own. It is not always easy to find the right laptop for the job. The main reason is that they are often larger than their desktop counterparts. If you are planning to buy a laptop then you need to make sure that it is made with good quality materials. This will ensure that it is reliable and durable.Apple has introduced the iPhone and iPad with an 18 inch touch screen that Apple is selling to make sure that they don't get any price drop on their hands. The next version of iOS devices will also include Bluetooth, NFC, GPS, remote access, audio and web browser support. It is very important to note that these are only one type of technology and it is not possible to replace them all at once. They can be used in conjunction with other technologies such as 3G and Wi-Fi.Application of 12 inch touch screen laptopThere are lots of different types of laptops that can be used in daily life. The first is a basic notebook which can be used as a mobile device and it can be used to connect to other devices such as laptop computer or mobile phone. These laptops can also be used to carry other apps such as Facebook, Google and Microsoft Office. There are many different models of 12 inch touch screen laptops available and they can be used to write notes and file sharing with friends.People have many types of computers and there are different types of computer used in different offices. They are all connected to each other, so you can use them to write or type text. When you are working on a large project, it is not unusual to find people who have a similar experience with their computer. In order to work on a larger project, you need to make sure that the device is small enough to fit into your workspace. A smaller size will allow you to focus on other tasks at work.We have seen many people complain about laptops getting smaller and smaller in size. With that in mind, we should all focus on our phones and tablets. They are bigger than they used to be and more powerful than we are now. This is because the number of people using them has increased by 10% since 2011. In the past year, there have been several companies that offer different types of laptops, but most of them are based on smartphones. The reason why these companies are called 12 inch touch screen laptops is because they have come a long way since they were first introduced.As we are moving towards more and more portable laptops, the cost of buying new ones will be rising. As people start to spend more on their laptops, they will also start to realise that it is only the time of year when they can afford to buy a new laptop. We have seen how easy it is to make purchases online from computers, so we need to be sure that we are making a good deal of money with our purchases. The benefit of buying a new laptop is that it is much easier to use than buying a new one.12 inch touch screen laptop industry trendsAll we need to do is take the guesswork out of buying a new laptop and put it in its original packaging. There are some great options, but you should be aware of what's really important to consider when buying a new laptop. You should be able to figure out what kind of laptop you would like to buy and then decide on the type of laptop you would like to buy. If you have any ideas on what you would like to buy then I would love to hear them out. Just send me a message on Facebook or write me an email.It is difficult to say how much this market is impacted by changes in consumer demand. In fact, it is difficult to say how much this market is impacted by changes in consumer demand. With so many choices and companies using their products, people are losing out on some of the best options. A few manufacturers have chosen to produce these laptops at an incredibly low cost. This means that they can offer more advanced versions of their products than the original models.With so many laptops available today, it's no wonder people are switching to 12 inch touch screen laptops. There are several companies that sell these laptop in different sizes and styles. Some of the major companies that sell these laptop are Dell, Lenovo, HP, and Toshiba. These laptops have good ports and an operating system that supports them. They also have good memory and battery life. 12 inch touch screen laptops are available in different sizes and styles. The biggest company that sells these laptop in this category is Dell.Touchscreen laptops are becoming more popular than ever. The recent trend of tablets that use multiple displays has led to a shift in how we interact with our mobile devices. One of the things that is most important to us is our ability to communicate with our mobile devices. A number of companies are making their products available to us, but we have to keep in mind that there are some people who have only been using their smartphones for work and personal purposes.
Analysis on the Advantages and Characteristics of Special-shaped LED Display Screen
Analysis on the Advantages and Characteristics of Special-shaped LED Display Screen
(source: network sorting)According to the analysis of the advantages and characteristics of special-shaped LED display screen, LED display screen is in a stage of rapid development and growth. Now, the LED display screen market presents great changes. In addition to the traditional information display and other functions, the requirements on appearance are further improved to better adapt to the overall structure and use requirements of the environment, resulting in the early led special-shaped display screen.Zaodao led special-shaped screen is a special shape zaodao LED display screen transformed on the basis of zaodao LED display screen. It is different from the rectangular and flat plate shape of conventional zaodao LED display screen. It has different shapes, including arc, curved surface, tetragonal hexahedron, letters and other irregular shapes.The early track spherical LED screen is designed with all aluminum structure, which is very firm and durable. At the same time, it can be designed as a movable form, which is convenient to carry. It can also be hoisted and mounted. 360 full viewing angle, omni-directional video playback, good visual effect can be felt at any angle, without plane viewing angle problem. It can be designed and produced according to customer requirements. The minimum diameter is 1m. It can be used indoors and outdoors. At the same time, the spherical surface is completely completed by NC, and the accurate module size ensures the consistency of the overall circular curvature of the early led spherical screen, making the spherical shape appear regular and perfect.The display surface of LED display screen is a part of cylindrical surface, which can display radian shape, and its expanded drawing is rectangular. The display surface of LED display screen is a three-dimensional surface, such as spherical screen, polyhedron screen and sky screen. The display surface of LED display screen is an irregular plane.It is composed of watermelon skin PCB, which has the advantages of intuitive structure and fewer types of PCB. The disadvantage is that the north and south poles (i.e. north of 45 north latitude and south of 45 south latitude) can not play the image normally, so the picture utilization rate is too low or the image deformation is serious. The reason is that at present, the pixel points of all image sources are arranged in rows and columns, while the pixel points of the north and south poles of the watermelon peel led spherical screen are not arranged in rows and columns, but in circles, so it is difficult to display.The early track spherical LED screen composed of planar triangular PCB overcomes the disadvantage that the north and south poles of watermelon skin spherical screen can not play images, so the picture utilization rate is greatly improved. The disadvantage is that there are many kinds of PCB, which is limited by the honeycomb layout of pixel points, and the point spacing can not be too small, and the software writing is troublesome. The advantage of the early track spherical LED display screen composed of quadrilateral PCB is that it is closer to the plane LED display screen. The minimum point spacing is similar to the plane LED display screen, with little or no restrictions. Therefore, the effect is much better than the ball screen composed of triangular PCB.Led cylindrical screen is specially designed for engineering projects and is widely used in various science museums, exhibition rooms, hotels and other places. It can freely play programs with video, graphics and images, and broadcast all kinds of information in real-time, synchronous and clear information transmission mode. Zaodao led cylindrical screen has the characteristics of thin, light weight, small volume, high pixel density, display of curved surface, 360 degree multi picture viewing and so on. It is a new favorite of exhibition venues, indoor and outdoor advertising screens, airport stations and other public places.
The Harm of Haze to Outdoor LED Electronic Display Screen Was Discussed
The Harm of Haze to Outdoor LED Electronic Display Screen Was Discussed
We often see the gray sky in the morning. In fact, it is shrouded by something called haze. It is estimated that many people do not know what is haze. Its main components are formed by the mixture of sulfur dioxide, nitrogen oxides and inhalable particles. The first two are gaseous pollutants, which combine with fog to make the sky gray in an instant. In fact, fog is a non-toxic and harmless natural phenomenon, and the formation of haze is mainly the result of a large number of suspended particles in the air and meteorological conditions. Fog and haze are often accompanied, and fog and haze occur at the same time. Conditions such as water vapor, calm wind, inversion and condensation core are indispensable.Toxic components in haze not only seriously endanger people's health, but also have a great impact on the operation of outdoor LED electronic display screen. In fact, we can divide haze into fog and haze, because their main hazards to the display screen are different:01Harm of fog to outdoor display screenFog is formed by condensation of water vapor in the air. In other words, the humidity in the air is relatively large, which will cause the LED display screen to be wet. Excessive humidity will cause the PCB board, power supply, power cord and other devices of the display screen to be easily oxidized and corroded, and even short circuit, resulting in failure.02Harm of haze to outdoor display screenHaze is the aggregate of suspended dust and various small particles in the air, in which the dust particles suspended in the air are the core material of haze. Under the influence of haze for a long time, all kinds of fine dust in the air will enter the equipment through the ventilation hole, which will accelerate the wear and even damage of fans and other equipment, and the dust will fall on the surface of internal control devices of the display screen, which will not only reduce the heat dissipation and insulation performance of the display screen, but also accelerate the aging of the display screen and affect the normal service life.Then, how to make the display stand the test in the haze weather for a long time requires users and engineers to pay more attention when purchasing and maintaining:1. First of all, users must see whether the display screen meets the dust-proof level required by the use environment during the procurement process. In terms of dust prevention, the international standard is ip0x-ip6x, which is a design grade to prevent foreign matter intrusion. If it is installed in the northern area with more dust and haze weather, its front and back protection grade must reach IP65, that is, it must adopt a complete dust-proof structure, that is, it is closed in the state of water spraying.2. Be sure to pay attention to whether the PCB of LED display screen has been subject to anti-corrosion treatment, such as three anti-corrosion paint on the surface; Whether the power supply and power cord are high-quality accessories; And check whether the welding part of the screen body that is most likely to be corroded has been treated with rust prevention.3. During daily maintenance, dust must be removed regularly to avoid short circuit caused by dust absorbing moisture in the air in wet weather and mildew of PCB board and electronic components.
Zhouming's First Ultra-high Definition 8K  3D Display Screen Was Officially Lit Up
Zhouming's First Ultra-high Definition 8K 3D Display Screen Was Officially Lit Up
Another year is the national day, a happy feast about culture, tourism, commerce and night travel will be staged everywhere.To say which content can attract the public's attention and create traffic explosion points, the answer is naked eye 3D.Recently, Zhouming's nearly 1000 square meter naked eye 3D screen was lit in Foshan and Jiuzhaigou, successfully creating a new landmark of urban network red.Rebuilding the city landmark, Foshan's largest naked eye 3D screen was successfully litThe naked eye 3D screen located on the facade of Block C of Foshan Vanke financial center was officially lit up and quickly aroused heated discussion in the local area. Many multimedia such as Guangdong TV station and Foshan TV station reported it one after another. This large screen with an area of 478 is made by Zhouming. It is also the largest naked eye 3D screen in Foshan.Combined with the regional and cultural characteristics of Foshan, Zhouming customized the naked eye 3D creative visual display solution for the project. Standing in front of the large screen, citizens can immerse themselves in Foshan cuisine, customs and culture and convenient transportation in one minute through the realistic naked eye 3D visual effect, and feel the urban style and development pulse of Foshan.The successful lighting of the naked eye 3D screen will not only greatly enrich the spiritual and cultural life of the public, but also serve as an important window to display the city image of Foshan, stimulate the potential of Foshan Vanke financial center as an important urban landmark of Foshan, and add bricks and tiles to the economic and social development of Foshan. The first scenic spot in ChinaUltra HD 8K naked eye 3D large screen to dress up JiuzhaigouOn the same day, the 2021 Sichuan Provincial Culture and tourism development conference was held in Jiuzhaigou, Aba Prefecture. After more than four years of restoration and reconstruction, Jiuzhaigou is fully open to tourists.This return, in addition to the still beautiful natural scenery, the huge naked eye 3D screen standing at the entrance of the scenic spot has also become an online Red landmark for tourists to punch in. This large screen is jointly built by China Telecom and Zhouming technology. It is also the first ultra-high definition 8K 3D display in many scenic spots in China, with an area of 318 square meters.The large screen adopts Zhouming's advanced LED display technology and display and control solutions, combined with China Telecom 5g leap Jiuzhai cloud live broadcasting platform, and the "black technology" combination of 5g UAV 8K naked eye 3D gathers the beautiful natural scenery and unique national culture in the visual language, so that tourists can travel in "Jiuzhai" by standing in front of the screen.Since lighting up, tourists with more than enough meaning will stay in front of the large screen to watch the scenic spot again. The amazing 8K visual effect and realistic naked eye 3D picture have been unanimously praised by everyone.At present, the consumption of cultural tourism industry is changing to focus on experience, quality enjoyment, change, innovation and interest, and the value of video content has been greatly released. As a leading enterprise in the field of naked eye 3D display, Zhouming will continue to refine the creative visual display solutions integrating LED display hardware, display and control operation and maintenance software, creative video content and interactive content, strengthen the one-stop service ability, constantly meet the emerging new needs of the market, and help improve the quality of life and happiness of the public.Original title: nearly 1000 square meters of naked eye 3D giant screen, lit up at the same time in Foshan and Jiuzhaigou!
Two Methods of Controlling Brightness Adjustment of LED Display Screen
Two Methods of Controlling Brightness Adjustment of LED Display Screen
There are two ways to adjust the brightness of LED display screen, automatic adjustment and manual adjustment. Among them, automatic adjustment is an intelligent brightness adjustment mode adaptive to the ambient brightness; Manual adjustment is realized by software. Next, let's specifically understand the brightness adjustment method of LED display screen!There are two methods to control the brightness of LED display:One is to change the current flowing through the LED display screen. Generally, the current allowed by the LED tube to work continuously is about 20mA. Except that the red LED is saturated, the brightness of other LEDs is basically proportional to the current flowing.Another method is to use the visual inertia of the human eye and use the pulse width modulation method to realize the gray level control, that is, periodically change the light pulse width (i.e. duty cycle). As long as the refresh frequency is high enough, the human eye can not feel the jitter of the luminous pixels. Because PWM is more suitable for digital control, today, when microcomputer is widely used to provide LED display content, almost all LED displays use PWM to control gray level.At present, the brightness of outdoor full-color LED display screen should be more than 1500cd / m2 to ensure the normal operation of the display screen, otherwise the displayed image will not be seen clearly because the brightness is too low. However, at present, the brightness of many outdoor LED displays exceeds 5000cd / m2, and the playback effect is good during the day, but such high brightness at night will cause serious light pollution and trouble to nearby residents.The current software adjusts the brightness, which is generally 256 level adjustable. In fact, the software is just an operation interface. Through the operation of the software, the PWM duty cycle of the LED display driver is finally changed to realize the change of brightness.The brightness of LED display screen is very useful, and adjusting the brightness through software is not only a basic means, but also a common practice in the industry, which is an effective method. Generally, after the completion of the display screen project, manufacturers will have special training for the software, in order to help customers start management and operation as soon as possible.
Large Outdoor LED Display Screen Is Widely Used. What Are Its Characteristics
Large Outdoor LED Display Screen Is Widely Used. What Are Its Characteristics
Large outdoor LED displays are well known. They are usually used in advertising, traffic information and cultural exchanges. In large and medium-sized cities around the world, various large outdoor LED displays are all over every corner of the city center, and even become a highlight of the city center. Because of the wide application of large outdoor LED display, more and more people are interested in it. Shenzhen LED display manufacturers will share with you the characteristics of outdoor LED display. Let's have a look.1. Large outdoor LED display screen is composed of many single LED beads, and the pixel spacing is usually large. Compared with small spacing LED display, the advantage of large spacing LED is low cost. The cost per square meter of large spacing LED display is much lower than that of small spacing LED display. However, the visual distance from the outdoor large screen is generally far, such as 8m, 10m, etc. when viewing the pictures on the large screen from a distance, there will be no sense of "particles" and the picture quality is clear.2. Wide coverage and wide audience.Large outdoor LED displays are generally installed in higher places, with larger screens and larger viewing angles. Under normal circumstances, the video can still be seen clearly from the angle of 140 degrees in the horizontal direction, which makes the display content of the large LED screen cover a wider range and more viewers. This main function is also one of the reasons why many enterprises are willing to choose outdoor large LED display as advertising content.3. The screen brightness can be adjusted automatically.Large screen LED display installed outdoors will be affected by outdoor weather. For example, the outdoor brightness will be different between sunny and rainy days. If the brightness of the display screen cannot be adjusted automatically, the effect will be different or even greatly reduced under different weather conditions. In order not to affect the viewing effect of the target audience, the outdoor large LED display screen will have the function of automatic brightness adjustment, that is, the brightness of the display screen will be automatically adjusted according to the outdoor weather conditions to achieve the best display effect.4. Easy to maintain.The cost of installing large outdoor LED displays is not low, ranging from hundreds of thousands to millions. Therefore, easy maintenance is very important for large LED displays, which is very important to ensure the long-term stable operation of the display. Generally, large outdoor LED displays can be maintained afterwards. Some displays are maintained by front maintenance, of course, there are also front maintenance and rear maintenance.fqj
How Can the LED Display Screen on the Stage Tell Whether It Is Good Or Bad
How Can the LED Display Screen on the Stage Tell Whether It Is Good Or Bad
For a "layman" how to distinguish the quality of stage LED display screen, he does not fully understand the stage LED display screen. In general, it is all justified by the salesperson. Sometimes it is difficult to convince the user. In the next few days, there are several simple methods to identify the quality of full-color display screen. I hope they can be helpful when you buy full-color display screen.The quality of a stage LED display can be judged from the following aspects:1. Flatness of stage LED display screenThe surface flatness of the display screen shall be within 1mm to ensure that the displayed image is not distorted. Local bulges or recesses will lead to dead corners in the visual angle of the display screen. The gap between the box and the box, and between the module and the module shall be within 1mm. If the gap is too large, it will lead to obvious boundary of the display screen and visual disharmony. The flatness is mainly determined by the production process.2. Brightness and visual angle of stage LED displayThe brightness of the indoor full-color screen should be more than 800cd / m2, and the brightness of the outdoor full-color screen should be more than 5000cd / m2 to ensure the normal operation of the display screen, otherwise the displayed image will not be seen clearly because the brightness is too low. The brightness of the display screen is not the brighter the better. It should match the brightness of the LED package. Blindly increasing the current and increasing the brightness will cause the led to decrease too fast and the service life of the display screen to decline rapidly. The manufacturer can be asked to provide parameter report for confirmation. The brightness of the screen is mainly determined by the quality of the LED tube core.Visual angle refers to the maximum included angle of the whole screen content that you can see from the two measurements of the screen. The size of the viewing angle directly determines the audience of the display screen, so the larger the better. The visual angle should be more than 150 degrees. The visual angle is mainly determined by the packaging mode of the die.Several tips to teach "laymen" how to distinguish the quality of stage LED display screen3. White balance effect of stage LED displayWhite balance effect is one of the most important indicators of display screen. In terms of chromatics, pure white will be displayed only when the ratio of red, green and blue primary colors is 1:4.6:0.16. If there is a deviation in the actual ratio, there will be a deviation in the white balance. Generally, pay attention to whether white is blue or yellow green. In monochrome, the smaller the brightness difference and wavelength difference between LEDs, the better. Standing on the side of the screen, there is no color difference or color deviation, and the consistency is better. The white balance is mainly determined by the brightness wavelength ratio of LED die and the control system of display screen. The die also has an impact on the color restoration.4. Color restoration of stage LED displayColor reduction refers to the color reduction of the display screen, that is, the color displayed on the display screen should be highly consistent with the color of the playback source, so as to ensure the authenticity of the image.5 stage LED display screen, dead center phenomenonMosaic refers to the small four squares that are often bright or black on the display screen, which is the phenomenon of module necrosis. The main reason is that the quality of IC or connector used in the display screen is not up to standard. Dead point refers to a single point that is always bright or dark on the display screen. The number of dead points is mainly determined by the quality of the tube core and whether the anti-static measures of the manufacturer are perfect.6. Is there any color block on the stage LED displayColor block refers to the obvious color difference between adjacent modules. The color transition is based on the module. The color block phenomenon is mainly caused by poor control system, low gray level and low scanning frequency.7. Stability of stage LED displayStability refers to the reliable quality of stage LED display screen in the aging stage after it is made into a finished product. The aging record can be obtained from the manufacturer to determine the condition of the screen during aging.8. Security of stage LED display screenThe stage LED display screen is composed of multiple boxes. Each box must be provided with external grounding protection, and the grounding resistance shall be less than 0. 1 euro. And it can withstand high voltage without breakdown at 1500V for 1min. Warning signs and slogans shall be provided at the high-voltage input terminal and the high-voltage wiring of the power supply.9. Packaging and transportation of stage LED display screenThe stage LED display screen belongs to valuable goods, which is very heavy. The packaging method used by the manufacturer is very important. Generally, the box is packed as a single box. There must be protective objects on all sides of the box for cushioning. The internal activity space of the box during transportation is small. The outer packing box must be clearly marked.Source: Shenzhen Yunhai Photoelectric Technology Co., Ltd
What Are the Control Software of LED Display Screen_ Introduction of Nine LED Display Control Softwa
What Are the Control Software of LED Display Screen_ Introduction of Nine LED Display Control Softwa
Introduction to LED display control systemLED display control system is a system that controls the correct display of LED large screen according to user requirements. It is divided into networked version and stand-alone version according to networking mode. The online version, also known as LED information release control system, can control each LED terminal through the cloud system. The stand-alone version, also known as LED display controller and LED display control card, is the core component of LED display, which is mainly responsible for converting external video input signals or onboard multimedia files into digital signals easy to recognize on the LED large screen, so as to light up the LED large screen. It is similar to the graphics card in household PC, except that the display in PC is CRT / LCD, etc, The display in this system is led large screen. According to the access signal mode, it can be divided into synchronous system and asynchronous system.LED display control system classification1 According to the display mode, the LED display system is divided into three categoriesGraphic display systemGenerally, the LED display screen that displays graphics and text is called graphic screen. The main feature of graphic screen is that each light-emitting device in the LED dot matrix is only on or off, and the strength cannot be controlled, that is, this kind of screen has no gray level control.Image display systemCompared with graphic display screen, image display screen refers to those display screens with gray level, which display more vivid and realistic pictures. The main feature of image screen is to display images with low color and gray level requirements by using limited gray level and color modulation.Video display systemBased on the research of skimming screen control system, the LED display which can receive video signals and display moving, clear and full-color images is called video display.2 According to the control mode, we divide the display system into two categoriesCommunication display systemThe communication display screen is an asynchronous display screen. The asynchronous mode means that the LED screen itself has the ability of storage and automatic playback. The edited text, grayscale free pictures and other display information on the PC, or the location code, picture number and various control commands of Chinese characters are transmitted to the LED screen controller through serial port or other network interfaces, Call various data information stored in the controller in advance, process the received instructions into dot matrix data required by the display screen and publish them to the display screen. This kind of screen generally has no multi-level gray-scale display ability. It is mainly used to display text and simple graphic information. It can be networked on multiple screens. This method must require a controller with CPU to process the information.Real time mapping screen systemThe real-time mapping screen is a synchronous display screen. Its basic function is to realize the real-time mapping of computer screen content by LED display screen, including displaying video images with the support of multimedia card. Take the data from the characteristic port of the host graphics card or the video PA card, take out the data processed by the graphics card to be displayed, and then process these data to the LED display screen. This method can be realized without a controller with CPU, or even by making a hardware card.The 256 gray LED display system can make the LED display screen display synchronously with the computer and achieve high-performance display effect. 256 gray LED display control is composed of multimedia card, video controller, long line driver, receiving card and display unit. The video controller obtains the digital display signal from the standard display interface of the multimedia card and converts it into the signal format required by the display screen. It can also obtain the control signal from the standard interface of the computer. The user completes the control and adjustment of the LED display screen through the computer software, so that the display screen can adapt to different specifications of multimedia cards and has a high degree of compatibility.3 Classification from the way of communicationWired communication modeCommunication mode using tangible physical media such as cable and optical fiber as media. In terms of current applications, data transmission is generally carried out through special channels, which is expensive. It is believed that wired communication based on public network will be more widely used in the future. Using Internet for data transmission is also one of the main methods used in this system.Wireless communication modeThe LED screen controller within the communication distance and the monitoring center send information from the monitoring center through radio waves. This method saves system investment, shortens the construction cycle and reduces the possibility of system theft. This communication mode is similar to the form of mobile phone short message, using GSM, GPRS or CDMA network for transmission, or using broadcast tower, using FM or am for signal transmission and reception.Asynchronous controlLED display asynchronous control system is also called LED display offline control system or offline card. It is mainly used to display various text, symbols, graphics or animation. The screen display information is edited by the computer, pre placed into the frame memory of the LED display screen through the RS232 / 485 serial port, and then displayed and played screen by screen, in a cycle, with rich and colorful display modes and various changes. Its main features are: simple operation, low price and wide application range. LED display simple asynchronous control system can only display digital clock, text and special characters. In addition to the function of simple control system, the biggest feature of LED display graphic asynchronous control system is that it can control the display screen content in different areas. Support analog clock display, countdown, picture, table and animation display. It has the functions of timing on-off, temperature control, humidity control, etcSynchronous controlThe synchronous control system of LED display screen is mainly used to display video, graphics, notices, etc. in real time. It is mainly used for indoor or outdoor full-color large screen display. The working mode of LED display screen controlled by LED display screen synchronization control system is basically the same as that of computer monitor. It maps the images on computer monitor in real time at the update rate of at least 60 frames / second. It usually has the ability of multi gray color display, which can achieve the effect of multimedia advertising. Its main characteristics are: real-time, rich expressiveness, complex operation and high price. A set of LED display synchronization control system is generally composed of sending card, receiving card and DVI graphics card.What are the control software of LED display screen1. Flight control electronic display screen editing softwareThe flight control electronic display screen editing software is a very powerful LED display screen control software. The flight control LED software allows you to edit the contents of the flight control LED display screen on the computer, such as adding program list, adding subtitles and text, adding graphic effects, etc. You can also insert date display, weather display and timing display. Support time calibration, brightness adjustment and timing on-off.2lyrebirdLyrebird is a general multimedia information publishing software, which can help you easily edit all kinds of media information and publish it to all kinds of display devices. It can manage a variety of different types of devices with a unified interface to help users edit and play media information more conveniently. The system also supports advanced functions such as network operation, automatic timing scheduling, external control interface and so on.The system consists of "editor" and "player" It is composed of two parts. All device management and media editing functions are completed by the operator at the editing end, while the playback end is unattended. The playback end can be installed on multiple computers in the LAN, and they can transmit data with the display device through serial port, video interface, etc. the users of the editing end can manage all these devices uniformly.3LedshowTWLedshowtw is a professional LED graphic controller editing software developed by yangbang technology. The latest version of ledshowtw2014 supports bx-5ql full-color strip controller to effectively improve U disk compatibility and fault tolerance.Ledshowtw function introductionRich program management functions;Powerful material editing tools;Efficient communication data compression;Novel colorful magic frame;Advanced background stacking technology;Convenient text animation editing;Support bx-5ql full-color strip controller;Support 16 line high display of double row numbers and English characters;Effectively improve USB flash disk compatibility and fault tolerance.4LedProThis is a general-purpose strip screen software, which can be used for most strip screens! Professional general playback software is suitable for the following types of control cards: tf20 / tf25 / tf30 / tf32 / tf40 / tf42 / TF-A / tf-b / F .5LedArtistLedartist is a simple and easy-to-use subtitle editor for LED advertising screen. If you have led signs, it is very reliable to use this software, with simple operation and intuitive effect. The following is randomly made during Xiaobian test, and the effect is not bad!6ledcontrolsystemZHLedcontrol system zh series LED display control system is a new concept led control system, which can realize more than 2600 stunt combinations. It is the LED display control system with the most stunts in the whole industry.Ledcontrolsystemzh function introduction:Ledcontro graphic management system pioneered the industry font stretch and offset function to make the screen display more humanized; took the lead in adopting ledos operating system to make the system run more efficiently and stably and the screen more smooth; and first solved the industry technical problem that the screen running speed is affected by the display area, making the left shift effect more smooth, and its performance is among the similar products in the industry be way ahead.7. EQ all in one cardEQ all-in-one card software is a very easy-to-use and powerful LCD display control software. It is mainly used for the editing of LCD display content. It has the function of multi screen, multi area and multi program editing at the same time. It supports multiple formats such as text and image. It is suitable for stations, docks, hospitals, banks, post offices, governments and other fields. With it, it can make the editing of LCD advertising easier. Friends who need this tool Friends can come to download and use.8. Xshow graphic editingXshow graphic editing software is a kale LED display control software that supports the control of display subtitles, pictures, dynamic background, etc. the software is simple, plug and play, and supports fully customized operation.Xshow graphic editing software features:Intelligent identification screen, plug and play;A dazzling font that turns complexity into simplicity;Novel dynamic background technology;Unparalleled performance;Rich and unique interfaces;Detailed operation data;Perfect software support.9. LED display program editing softwareLED display screen program editing software is a practical software for making and editing led programs. The software interface is simple and easy to use. It can help you arrange programs on the display screen.Software features:Advanced derectx image display technology is adopted to make the picture display smooth and deal with the flicker phenomenon well.The operation is intuitive and what you see is what you get. You can easily and intuitively arrange various display elements with pictures and texts. All display elements support mouse drag and drop; the design idea is in accordance with microsoftpowerpoint. Display elements include animation, image, sound, video, text, geometric image and table. It supports all image format files, video files, TXT, RTF text files and flash It can also be connected to the Internet to play the content of webcast. All display elements can be set with more than 200 stunts and accompanying sounds.If you have installed a specific video card, you can also display the video picture received by the video card. The user's typesetting can be saved as a file. The "small movie" arranged and designed by this software can be saved as each file, and you can open this file for playback when you need to broadcast.Wonderful reading recommendations:Application place of LED display screen _developmentstatus and trend of LED display screen
Common Faults and Maintenance Methods of Indoor LED Display Screen
Common Faults and Maintenance Methods of Indoor LED Display Screen
What are the abnormal conditions of LED display screen? How to repair it if it is broken? . The manufacturer installed and debugged Maipu Guangcai LED display screen on site and delivered it to the user for use. After that, all abnormal conditions are fault problems. According to the feedback of previous users, there are usually the following situations and maintenance methods:1. There are sporadic lights on the whole screen, also known as black spots, bad lights and dead lights. (if it does not appear in a large area, the display effect will not be affected as long as it is within the fault rate range), Maipu Guangcai whole screen2. Once the LED display is powered on, there is a box jump, so is repeated operation. (check where the power line is short circuited, especially at the connectors of positive and negative power lines, to see if there is any touch, as well as the connectors on the power switch: another thing is not to drop metal objects inside the screen)3. One line of LED display screen is abnormal, with flickering variegated colors. (check the board from the abnormal position to check whether the cable is loose and whether the board cable interface is damaged. If there is any problem, replace the cable or faulty board)4. A large area of LED display screen does not display, all of which are black. (first, consider the problem of power transmission. Check from the problem board to see if the power switch is broken and there is no power. Check whether the cable is loose and the signal has not been transmitted. Then, there is the problem of damage to the receiving card: eliminate it one by one to find a solution)5. When the LED display screen plays video or pictures, the display area of computer software is normal, but sometimes the screen is stuck and black. (generally, it is the quality problem of the network cable. The black screen jamming phenomenon is caused by packet loss in video data transmission. It can be solved by replacing the network cable with better quality)6. Flashing squares and variegated colors appear on a board on the LED display screen, and several consecutive lights side by side display abnormally. (that's the problem with the board. Just replace the board with abnormal display. The indoor screen attached to the wall is usually attracted by a magnet. Pull down the board with a little force and replace it.)7. There is an area on the LED large screen, and the board displays abnormally, such as all the disordered designs and colors are flashing. (generally, there is a problem with the receiving card. Check which receiving card controls the area, and replace the receiving card to solve the problem) Maipu Guangcai unit board8. The computer internet cable is well connected with the Maipu Guangcai LED large screen network cable. The software prompts "no large screen system found". Even the LED screen can play pictures and videos normally, but the data sent by the software settings are all failed, such as brightness sending failure. (generally, there is a problem with the sending card, which can be solved by replacing the sending card)9. The display of LED display screen playback software window is normal, but the picture on the screen is disordered, staggered or divided into multiple windows to display the same picture separately. (it's a software setting problem. Enter software setting and reset it correctly to solve it)10. Want to synchronize the LED display with the full screen display on the computer desktop. (without LED video processor, this function cannot be realized: with video processor, it can be adjusted on the video processor to synchronize the picture area to be displayed to Maipu Guangcai LED large screen)fqj
Scanning Mode and Working Principle of LED Electronic Display Screen
Scanning Mode and Working Principle of LED Electronic Display Screen
With the development of LED technology, the brightness of LED electronic display screen is also increasing, and the size is becoming smaller and smaller, which shows that more LED electronic display screens will enter the room. However, the improvement of LED brightness and pixel density also brings new and higher requirements to the control and driving of LED screen. As far as the general indoor screen is concerned, the current common control methods adopt the row column split control mode, which is commonly referred to as the scanning mode. At present, the driving modes of LED electronic display screen include static scanning and dynamic scanning. The static scanning is divided into static real pixels and static virtual, and the dynamic scanning is also divided into dynamic real image and dynamic virtual.In the LED electronic display screen, the ratio of the number of rows lit at the same time to the number of rows in the whole area is called scanning mode. The scanning is also divided into several driving modes, such as 1 / 2 scanning, 1 / 4 scanning, 1 / 8 scanning, 1 / 16 scanning and so on. In other words, if the driving mode of the display screen is different, the setting of the receiving card is also different. If the receiving card was originally used on the 1 / 4 scanning screen and is now used on the static screen, the display on the display screen will be bright every four lines. Generally, the receiving card can be set. After connecting the sending card, display screen, computer and other main devices, you can enter the relevant software on the computer for setting. So here we will first introduce the scanning mode and principle of LED electronic display screen.Scanning mode of LED electronic display screen:1. Dynamic scanning: dynamic scanning implements "point to column" control from the output of driving IC to pixel points. Dynamic scanning requires control circuit, and the cost is lower than static scanning, but the display effect is poor and the brightness loss is large.2. Static scanning: static scanning implements "point-to-point" control from the output of driving IC to pixel points. Static scanning does not need control circuit, and the cost is higher than dynamic scanning, but it has the advantages of good display effect, good stability, small brightness loss and so on.Working principle of 1 / 4 scanning mode of LED electronic display screenIt refers to the time when each line of power V1-V4 is turned on 1 / 4 according to the control requirements in one frame of image. The advantage of this is that the display characteristics of LED can be used more effectively and the hardware cost can be reduced. Its disadvantage is that in one frame of image, each line of LED can only display 1 / 4 of the time.Classification according to LED electronic display type and scanning mode1. Scanning mode of indoor full-color LED electronic display screen: P4 and P5 are constant current 1 / 16, P6 and p7.62 are constant current 1 / 8.2. Scanning mode of outdoor full-color LED electronic display screen: P10 and p12 are constant current 1 / 2 and 1 / 4, and p16, P20 and P25 are static.3. The scanning modes of single and dual color LED electronic display screen are mainly constant current 1 / 4, constant current 1 / 8 and constant current 1 / 16.
no data
Contact US

    Bao’an District  Shenzhen City, China

     +86 189 3806 5764

NEWSLETTER SUBSCRIBE
no data
Copyright © 2021 CrowBerry

   

chat online
NEED HELP? WE'RE HERE!