Analysis of 10 technical parameters of outdoor LED display in Shenzhen

[Shenzhen LED display screen] with the increasing market demand for outdoor advertising, the application scale of outdoor LED

display screen in Shenzhen is expanding rapidly. In the face of numerous brands on the market, how can industry users choose

and buy products that satisfy themselves? Understanding the parameters of Shenzhen LED display is the first prerequisite.

1. Definition: according to the best viewing distance point, the required area of the screen body is determined, and the best

distance of “40000 pixels / m2” is 5-50m; the most advanced 16 bit data interface is used to further improve the definition of the

screen.

2. Brightness: the brightness design of the screen body is more than 2500 CD / m2, which can not only ensure that the indoor

full-color Shenzhen LED display screen has vivid color and clear image in normal use, but also can ensure that Shenzhen LED

display screen has enough brightness and vivid and clear video image when the lamp tube attenuation exceeds 30%. High

anti-interference and anti-interference performance can be achieved by using high-frequency and high-power digital flash screen

IC. Power supply and signal transmission mode: because of the importance of full-color LED display in Shenzhen, the power

supply and signal transmission should be treated with special technology, using high-quality military grade connector design.

Furthermore, the failure caused by various pulling forces is controlled at the connector.

3. Control mode: select the self-designed control system, and conduct 240 hours of uninterrupted power on aging screening, and

then select the highly reliable control system. In addition, double redundant waste heat backup is adopted in the control mode.

Once there is a problem, another signal line will be connected immediately to continue normal operation and smooth connection.

4. Raw materials: all raw materials of Shenzhen LED display screen are brand-name high-quality products, and the most important

LED lamps are high-quality LED lamps;

5. Three level product aging process: firstly, the modules produced by the automatic assembly line are subject to 24-hour power

on aging, and then the single box is subject to 48-hour power on aging. Finally, the on-site assembly of the finished display screen

is simulated for 72 hours of continuous power on aging. Only after passing the test can they 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 quality certification), will be strictly in accordance with the waterproof grade IP65 test, to achieve full waterproof

effect. Shenzhen LED display installation and debugging: strictly according to the design scheme, Shenzhen LED display

installation and debugging, the installation level of C level or above (Shenzhen LED display installation of the highest level).

[Shenzhen LED display screen]

7. Leading system software (for screen re application): the operating system adopts Windows XP and supports the latest windows

series products provided by Microsoft. All application software is based on windows and the interface is friendly. The playback

software has rich clock functions. It can display the current date and time. The display clock synchronized with the computer time

can be a simulation clock or a digital clock. The software adopts advanced thread technology, which can play text, animation,

clock, photo, audio and so on in multi thread.

8. Perfect system function design (for screen re application): the system can meet the requirements of assembly, performance,

TV broadcast and advertisement broadcast. Shenzhen LED display system of the project has multimedia, multi-channel, real-time

transmission of high-speed communication data and video interface, can easily introduce various forms of information sources

into the computer network system, and realize the unified control of various audio and video input. The detailed functions are as

follows:

9. Video playback function can display real color dynamic video images; can broadcast 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 VCD, DVD, LD with high fidelity; it has the function of superimposing text,

animation and static pictures on the video screen; it can realize real-time editing and playing functions such as full scene, close-up,

slow shot and special effects by editing equipment. Brightness, contrast, saturation and chroma can be adjusted by software, and

the adjustment range is 256 levels; it has image freezing function; it has three display modes: VGA + video, video and VGA; it has

horizontal / vertical position compensation function; it has display synchronization function.

10. Computer graphic information playback function can display all kinds of computer information, text, graphics, pictures and

two-dimensional, three-dimensional animation, etc.; it has rich playback methods, display rolling information, notices, slogans, etc

., and has large storage capacity. Multiple windows can be set up on the display screen to display calendar, clock and single line

mobile text. There are a variety of Chinese fonts and font types to choose from. You can also input English, Spanish, French,

German, Greek, Japanese, Latin, Russian and many other foreign languages. The broadcasting system has multimedia software,

which can input and broadcast a variety of information flexibly. There are more than 20 broadcasting modes, such as left and right

rolling, up and down rolling, left and right pushing, up and down pushing, diagonal pushing, diffusion, fan type, rotation, scaling

and so on. Display network data information through network connection. With network interface, it can connect with computer

and share network resources. It has standard audio signal output interface to achieve audio-visual synchronization.

[Shenzhen LED display screen]