Detailed analysis of outdoor LED display technology

With the increasing market demand for outdoor advertising, the application scale of outdoor LED display is expanding rapidly. In the face of the complex brand products on the market, how can industry users choose products that satisfy themselves? Understanding the parameters of LED display screen is the first premise. The manufacturer of LED display screen will answer for you.

1. Clarity:
According to the best viewing distance point, the screen area and definition “40000 pixels / m2” are determined, and the best distance is 5-50m; The most advanced 16 bit data interface is adopted to further improve the clarity of the picture.
2. Brightness:
The brightness design of the screen is more than 2500cd / m2, which can not only ensure that the color of indoor full-color LED display is realistic and the image is clear, but also ensure that the LED display has enough brightness and bright and clear video image when the lamp attenuation exceeds 30%. Refresh rate: between the processor and the screen, the super-5 twisted pair shielded wire is used, and the high-performance control IC is configured. The high refresh rate of the screen can be designed at ≥ 1000Hz, so as to ensure that there is no water ripple and flicker when the video is played, low digital loss and anti electromagnetic interference.
Power supply and signal transmission mode: because of the importance of full-color LED display, the power supply and signal transmission should be specially processed in technology, and high-quality military grade connector design should be used. Furthermore, the faults caused by various pulling forces are controlled at the connector.
3. Control mode:
Select the self-designed control system, and carry out 240 hours uninterrupted power aging screening, and then select a highly reliable control system. In addition, in the control mode, double redundant waste heat backup is adopted. Once there is a problem, another signal line is connected immediately to continue to work normally and connect smoothly.
4. Raw materials:
All the raw materials of LED display screen are brand-name and high-quality products, and the most important LED lamp is high-quality LED lamp.
5. Aging process of grade III products:
Firstly, the modules produced by the automatic assembly line are aged for 24 hours, and then the single box is aged for 48 hours. Finally, the finished display screen assembled on site is simulated for 72 hours. After passing the test, it can be transported to the site for assembly.
6. Product quality control:
All products are manufactured in strict accordance with ISO9001-2000 quality certification system documents（ See the quality certification), will be strictly in accordance with the waterproof grade IP65 test, to achieve complete waterproof effect. Installation and debugging of LED display screen: the installation and debugging of LED display screen shall be carried out in strict accordance with the design scheme, and the installation level shall reach level C or above (the highest level of LED display screen installation).
7. Leading system software (for screen re application)
The operating system adopts Windows XP and supports the latest products of windows series provided by Microsoft. All the applications are based on windows and have friendly interface. The playback software has rich clock functions. It can display the current date and time. The display clock synchronized with the time of the computer can be analog clock or digital clock. The software adopts advanced thread technology, which can play text, animation, clock, photo, audio and so on.
8. Perfect system function design (for screen re application)
The system can meet the requirements of assembly, performance, TV broadcast and advertisement broadcast. The LED display system of this project has multi-media, multi-channel, real-time transmission of high-speed communication data and video interface, which can easily introduce various forms of information sources into the computer network system, and realize the unified control of all kinds of audio and video input. The detailed functions are as follows: