Outdoor LED display technical indicators
1. Sharpness: Determine the required area and sharpness of the screen according to the best viewing distance point. The best distance 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 during normal use, but also ensure that the LED display has a high-quality LED display when the lamp attenuates more than 30%. Sufficient brightness and vivid clarity of video images. Refresh rate: Category 5 twisted-pair shielded cable 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. All-digital low loss, anti-electromagnetic interference.
Power supply and signal transmission method: Because of the importance of full-color LED display, the power supply and signal transmission should be specially treated technically, using high-quality military-grade connector design. Further control failures caused by various pulling forces at the connector.
Outdoor LED display technical indicators
3. Control method: choose the self-designed control system, and conduct 240-hour uninterrupted power-on aging screening, and then select a highly reliable control system. In addition, the dual redundant hot backup is adopted in the control mode. Once a problem occurs, another signal line will be connected to it, and it will continue to work normally and connect smoothly.
4. Raw materials: All the raw materials of the LED display screen are made of high-quality products of famous brands, and the most important LED lights are high-quality LED lights.
5. Three-level product aging process: firstly, the modules produced by the automated assembly line are energized and aged for 24 hours, and then a single box is energized and aged for 48 hours. Finally, the finished display screen assembled on site is simulated and aged for 72 consecutive hours. Shipped to the site for assembly.
6. Product quality control: All products are manufactured in strict accordance with the ISO9001-2000 quality certification system documents. (See quality certification), all will be tested in strict accordance with the waterproof level IP65 to achieve complete waterproof effect. Installation and debugging of LED display: The installation and debugging of LED display shall be carried out strictly according to the design plan, and the installation level shall reach C level or above (the highest level of LED display installation).
7. Leading system software (prepared for re-application on the screen): The operating system adopts Windows XP and supports the latest Windows series products provided by Microsoft. All application software uses Windows as the operating platform and has a friendly interface. The playback software has rich clock functions, it can display the current date and current time, and the display clock synchronized with the computer’s time can be an analog clock or a digital clock. The software adopts advanced thread technology, and can play text, animation, clock, photo, 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 interfaces, and can easily introduce various forms of information sources into the computer network system to achieve unified control of various audio and video inputs. The detailed functions are as follows:
9. The video playback function can display true color dynamic video images; it can broadcast closed-circuit TV 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 VCRs, DVD players (VCD, DVD, LD) with high fidelity; have functions such as superimposing text, animation and still pictures on the video screen; can achieve panoramic views through editing equipment , close-up, slow motion and special effects, and other real-time editing and playback features. Brightness, contrast, saturation, and chroma can be adjusted by software, and the adjustment range is 256 levels; with image freezing function; with video overlay (VGA+Video), video (Video), VGA three display modes; with horizontal/vertical Position compensation function; with display synchronization function.
10. The computer graphic information playback function can display various computer information, text, graphics, pictures, two-dimensional and three-dimensional animations, etc.; it has rich playback methods, displays scrolling information, notifications, slogans, etc., and has a large storage data information capacity. The display body can open multiple windows to display the calendar, clock, and insert a single line of flowing text. There are a variety of Chinese fonts and fonts to choose from, and you can also input English, Spanish, French, German, Greek, Japanese, Latin and Russian and many other foreign languages.
The broadcasting system has multimedia software, which can flexibly input and broadcast various information. There are more than 20 kinds of broadcasting methods, such as scroll left and right, scroll up and down, push left and right, push up and down, push diagonally, spread, fan, rotate, and zoom. Through the network connection, the network data information is displayed. Equipped with a network interface, it can be connected to the computer and share network resources. It has a standard audio signal output interface to achieve audio and video synchronization.
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