Ten key points for purchasing outdoor LED display

When we purchase LED display screen, most of us are inexperienced because we don’t have much contact with them. We don’t know which features of LED electronic screen are important and which features are secondary. Here are the ten key points of LED display screen manufacturer

1. Definition: according to the best viewing distance point to determine the required area of the screen, the best distance of “40000 pixels / m2” is 5-50m; The most advanced 16 bit data interface is adopted to further improve the clarity of the picture.
2. Brightness: the brightness of the screen is designed to be more than 2500cd / m2, which can not only ensure the vivid color and clear image of P5 indoor full-color screen in normal use, but also ensure that the LED display screen 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 self-designed control system, and conduct 240 hours uninterrupted power on aging screening, and then select 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 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. Three level product aging process: first, the module produced by the automatic assembly line is subject to 24-hour power aging, then the single box is subject to 48 hour power aging, and finally the finished display screen assembled on site is subject to 72 hours continuous power aging, which can be transported to the site for assembly only after passing the test.
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 advertising 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: