How Much Cost to Repair Realme 5 Display Screen in India?

The cost to repair your Realme 5 screen totally depends on which method you choose to fix it up. Few of the methods are like getting it fixed from authorized Realme service center or getting it fixed by a local repair shop in your area or to do it yourself. * The 1st option is to go to authorized Realme service center. They will charge a hefty amount on the same, but this will ensure 100% genuine replacement screen with warranty. Means this is the only method to ensure that you will get 100% genuine original screen and will get some limited time warranty on the part. * The 2nd option is to go to some local mobile repair shop in your area, where you can get your Realme 5 repaired for a better price deal but this wo not ensure good quality part and an unreliable warranty. Just make sure that you do not get fooled by a shop who claims to have a original screen for a higher price. Do you really think he can have tie ups with Realme and get original genuine parts from them? The only way these shops can have a original screen is if they took out the screen from some other phone. Do It Yourself * The 3rd and the best option is to get a high quality replacement LCD Screen with Touch Digitizer for your Realme 5 from a reliable online store (like maxbhi.com) and get it fitted from the local repair shop for just 200-300 Rs. This way you will get a good quality display screen with good prices and a reliable warranty. You can even try to do this yourself with the help of youtube videos and phone opening toolkit for Realme 5. As per our research, Realme 5 screen replacement should cost something around 2300 Rupees in India.

How Much Cost to Repair Realme 5 Display Screen in India? 1

1. my laptop went dead batt then when i tried to switch it back on there was no display on the screen?

The battery got totally drained and may have been damaged by that especially if it's old. It's bad for Lithium-Ion batteries to be drained too deep. Try leaving it plugged in and charging for an hour before turning the laptop on. If you need to use the laptop right now and can not wait, take out the battery and use the charger to power the laptop. EDIT: Do you see nothing at all when you turn the laptop on? How about pressing the F9 or F2 as you turn the power on? If you do not see anything on the screen at all then it's already a hardware problem. There's nothing else you can do but take it to the shop. PS: I wo not be able to read your additional details after this as I do not get notified about updates by email. Y!A does not have that feature.

2. HDMI to DVI connection from PS3 to Monitor, no display on screen?

I think you just have to reset the PS3 video settings. Just hold the on button till it double beeps. I think that will work

How Much Cost to Repair Realme 5 Display Screen in India? 2

3. I just built a computer and the system turns on, but I get no display on the screen at all.?

Probably the electricity in your room is not so good. it happens to me all the time but my monitor never blacked out. Probably there is something seriously wrong with your electricity.

4. when i open task manager a massage display on screen is "SAM-SORRY" and the task manager get closed. plz help!

Another quality answer, not using cut and paste. Your poor computer is completely infested with a dread and deadly virus which may one day mutate and infect a human being unless you get rid of it. You will have to take your computer outside, smash it to pieces with a hammer, spread an inflammable liquid on the remains, burn it, then when it's cooled, spread the ashes far and wide on a large body of water. It's all your fault that the rest of us have been put at risk - you must never never never go to porn sites again.

5. I want to ask a question about my computer?

Button Cell? I am guessing your speaking about the Battery Cell inside the actual computer? If so this is the BIOS Battery... which is basicly a Basic Input / Output System of the computer. It helps the BIOS within the motherboard rememeber things such as Time / Date / Passwords & Settings. The BIOS: (bs) Acronym for basic input/output system, the built-in software that determines what a computer can do without accessing programs from a disk. On PCs, the BIOS contains all the code required to control the keyboard, display screen, disk drives, serial communications, and a number of miscellaneous functions. The BIOS is typically placed in a ROM chip that comes with the computer (it is often called a ROM BIOS). This ensures that the BIOS will always be available and will not be damaged by disk failures. It also makes it possible for a computer to boot itself. Because RAM is faster than ROM, though, many computer manufacturers design systems so that the BIOS is copied from ROM to RAM each time the computer is booted. This is known as shadowing. Many modern PCs have a flash BIOS, which means that the BIOS has been recorded on a flash memory chip, which can be updated if necessary. The PC BIOS is fairly standardized, so all PCs are similar at this level (although there are different BIOS versions). Additional DOS functions are usually added through software modules. This means you can upgrade to a newer version of DOS without changing the BIOS. PC BIOSes that can handle Plug-and-Play (PnP) devices are known as PnP BIOSes, or PnP-aware BIOSes. These BIOSes are always implemented with flash memory rather than ROM. Thanks. JubeiTigeruk

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On the Protective Function of Self Restoring Fuse in LED Display Screen
On the Protective Function of Self Restoring Fuse in LED Display Screen
LED is developing rapidly now. LED is used in various fields, so people pay attention to its safety. Today, let's talk about the protective role of self-healing fuse in LED display screen.LED display screen is a display screen composed of LED array screens of multiple units. Each LED array unit consists of a small screen composed of an equal number of LED particles. Each unit LED screen has an independent driving circuit, and the driving signal is distributed by the signal distribution circuit.In an LED panel, generally, one or several power supplies supply power to each driving circuit board. Each power supply must supply power to multiple LED array units, which is another scheme to reduce the power supply cost. Under this power supply scheme, each unit led panel is the load of the power supply.During the operation of the display screen, if any one of the screens is short circuited or over-current or over temperature, the total power supply will not work and the whole LED screen will be paralyzed. In order to avoid this situation, it is necessary to make over-current temperature protection circuit for each unit screen and over-current temperature protection circuit for the power supply itself, so it is necessary to design more protection circuits.In this protection network, the simplest and most feasible scheme is to select the collector self recovery fuse for over-current temperature protection. Because the collector on self recovery fuse is selected, only one element needs to be connected in series to the power branch to complete the over-current temperature protection function at the same time. PolySwitch positive temperature coefficient thermistor is also called jdtfuse self recovery fuse or self reset over-current protector.In case of large current and high temperature, the collector on self recovery fuse will suddenly change to high resistance to limit the current of the circuit and achieve the purpose of timely protection. After an emergency, the collector on self recovery fuse will return to the normal working state of low resistance.The protection circuit of jdtfuse in LED display screen is shown in the figureTherefore, in order to protect the circuit timely and accurately, it is recommended that you choose jdtfuse. If you don't know how to choose a specific model, you can contact our online engineers, who will give you good suggestions. fuse-tech.com
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.
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