Detailed Explanation of 10 Technical Parameters of Outdoor LED Display

With the continuous improvement of the market’s demand for outdoor advertising, the application scale of outdoor LED display screens has expanded rapidly. Facing the complicated products on the market, how can industry users choose products that satisfy them? Knowing the parameters of led wall pitch displays is the first prerequisite.

1. Clarity: Determine the area required for the screen according to the best viewing distance point, and the best distance for the definition “40000 pixels/m2” is 5-50 meters; the most advanced 16-bit data interface is used to further improve the clarity of the picture Spend.

2. Brightness: The brightness of the screen is designed to be above 2500cd/m2, which can not only ensure that the indoor full-color LED display has vivid colors and clear images when it is in normal use, but also can ensure that the LED display has the best performance when the lamp attenuation exceeds 30%. Sufficient brightness and vivid and clear video images. Refresh rate: The super category 5 twisted-pair shielded wire is used between the processor and the screen, and a high-performance control IC is configured. The high refresh rate of the screen can be designed at ≧1000HZ to ensure that there is no water ripple and flicker during video playback. Full digital low loss, anti-electromagnetic interference. Power supply and signal transmission method: Because of the importance of the full-color LED display, the power supply and signal transmission must be specially treated technically, and high-quality military-grade connectors are used for design. Further control the faults caused by various pulling forces at the connector

3. Control method: select the self-designed control system, and carry out 240-hour uninterrupted power-on aging screening, and then select a highly reliable control system. Moreover, dual redundant hot backup is adopted in the control mode. Once a problem occurs, it will be connected to another signal line immediately to continue to work normally and connect smoothly

4. Raw materials: All raw materials of the LED display are selected from famous brand high-quality products, and the most important LED lights are high-quality LED lights

5. Three-level product aging process: first, conduct 24-hour power-on aging on the modules produced by the automated assembly line, then conduct 48-hour power-on aging on a single box, and finally simulate on-site assembly of the finished display screen for 72 hours of continuous power-on aging. Delivered to site for assembly

6. Product quality control: All products are manufactured in strict accordance with the ISO9001-2000 quality certification system documents. (See the quality certification certificate), will be tested in strict accordance with the waterproof level IP65, to achieve a complete waterproof effect. Installation and debugging of led display screen: install and debug led display screen strictly according to the design plan, and the installation level reaches above C level (the highest level of led display screen installation)

7. Leading system software (prepared for re-application on the screen): the operating system adopts Windows XP and supports the latest products of Windows series provided by Microsoft. All application software use Windows as the operating platform and have a friendly interface. The playback software has rich clock functions, it can display the current date and time, and the display clock synchronized with the time of the computer can be an analog clock or a digital clock. The software adopts advanced threading technology, which can play text, animation, clock, photos, audio, etc. in multiple threads when playing the software

8. Perfect system function design (prepared for re-application on the screen): This system can meet the requirements of assembly, performance, TV broadcast and advertisement broadcast. The led display system of this project has multimedia, multi-channel, real-time transmission of high-speed communication data and video interface, and can easily introduce various forms of information sources into the computer network system to realize unified control of various audio and video inputs

9. The video playback function can display real-color dynamic video images: it can rebroadcast CCTV and satellite TV programs with high fidelity; a variety of video signal input and output interfaces: composite video, Y/C video (S_Video), YpbPr, VGA (RGBHV), DVI, HDMI, SDI (HDSDI); can play video programs such as video recorders, DVD players (VCD, DVD, LD) with high fidelity; have the function of superimposing text, animation and still pictures on the video screen; can be realized through editing equipment Real-time editing and playback functions such as panorama, close-up, slow motion and special effects. Brightness, contrast, saturation, and hue can be adjusted by software, and the adjustment range is 256 levels; with image freezing function; with video superposition (VGA+Video), image (Video), VGA three display modes; with horizontal/vertical Position compensation function; with display synchronization function

10. The computer graphics and text information playback function can display various computer information, such as text, graphics, pictures, and two-dimensional and three-dimensional animations; it has rich playback methods, displaying scrolling information, notifications, slogans, etc., and has a large capacity for storing data information. The display body can open multiple windows to display calendars and clocks, and insert and broadcast single-line flowing text. There are a variety of Chinese fonts and fonts to choose from, and many foreign languages such as English, Spanish, French, German, Greek, Japanese, Latin and Russian can also be input. The broadcast system has multimedia software, which can flexibly input and broadcast various information. There are more than 20 kinds of broadcasting methods, such as scrolling left and right, scrolling up and down, pushing left and right, pushing up and down, pushing diagonally, spreading, fanning, rotating, and zooming. Through network connection, display network data information. Equipped with a network interface, it can be connected to the computer to share network resources, and has a standard audio signal output interface to achieve audio and video synchronization.