LED display Profile
LED is light-emitting diodes Light Emitting Diode the stands. LED display is composed of light-emitting diodes with a display. It uses low-voltage scanning driver, has the following advantages:
1, the power consumption of
2, long life
3, low cost
4, high-brightness
5, the Perspective
6, visual distance
7, specifications and more varieties
LED display market in recent years by rapid development, has been widely applied in banks, post and telecommunications, taxation, airport, railway stations, the stock market and other trading markets, hospitals, electricity, customs, sports venues and other necessary notice, publicity occasions .
At present LED display information as an important means of communication, information has become a city landmark modernization construction. With the continued socio-economic progress, and the LED display technology continues to improve, people's LED display will be more and more in-depth understanding of their applications will become more and more widely.
LED Display Products
A, monochrome, dual-color bar display
B, Digital Display
C, monochrome, dual-display by
D, full-color (red, green, yellow) multi-media video display
LED display classification
1, the show is divided into color: red-and-green, two-color red, green, red, green blue trichromatic
2, by the use of functions include: text display, multi-media video display screen market, the type of display screen and other types
3, the use of the environment are: indoor displays, outdoor displays, semi-outdoor display
4, the luminous point diameter: (indoor and outdoor single / double color) §¶3 mm, §¶3.7 mm, §¶4.8 mm, §¶5.0 mm, §¶8.0 mm, to 10 mm, such as the 12 mm
5, the luminous point spacing: (indoor, outdoor full-color) 6 mm, 7.625mm, 8.38mm, 10mm, 12mm, 12.5mm, 14mm, P16mm, P20mm, P22mm, P25mm, P30mm, P40mm, etc.
6, the density of luminous points: (outdoor full-color) 6400, 5102,3906, 2500, 2066, 1600, 1111 points, 625 points
LED display technical characteristics
A, remarkable results: The dynamic scanning technology, the screen stable, non-hybrid, the images clear and vivid animation, and diverse; smooth video effect;
B, rich in content: can display text, graphics, images, animation, video information;
C, a flexible way: user-mode arbitrary schedule;
D, quality assurance: imports of luminous materials, high-quality IC chip, noise-free power supply
E, the amount of information: the information displayed unrestricted
F, easy maintenance: modular design, installation, maintenance-friendly;
LED display the basic component
Simply put LED display is available from a number of combinations mosaic display unit (the display unit or units display box) of a screen, coupled with an appropriate controller (control board or control system). Therefore, multiple specifications of the display (or units box) with different control of the controller can be composed of many types of LED displays, to meet the different environments and different requirements of the show needs.
Decomposition of a carefully LED display, it posed the following elements (in a more complex simultaneous video screen as an example):
¢Ù metal structure framework
Neiping general households by aluminum (aluminium or aluminium angle of the side) within a framework, carrying boards and other circuit boards and switching power supply, outside the borders of a brown aluminum, stainless steel or aluminum packets, or sheet metal Integration made.
Outdoor screen under the framework of screen size and the load-bearing capacity is generally angle or I-beam structure, aluminum-plastic plate frame can be decorated.
¢Ú display unit
The display is the main part of the luminous materials and drive circuit. Neiping households is a variety of display units, outdoor screen is the unit box.
¢Û scanning control panel
The board's function is to buffer data, a variety of scanning signals and gray duty cycle control signal.
¢Ü switching power supply
220 V AC will become available to all kinds of various DC Circuit.
¢Ý twisted pair transmission lines
Control for the display data and control signals from various twisted pair cables to the screen of transmission.
¢Þ main controller
RGB will enter the digital video signal buffer, gray transform, re-organization, and produce all kinds of control signals.
¢ß dedicated graphics card and multimedia card
In addition to a computer display card also basic functions of digital RGB output signals and lines, and field, blanking signal to the control instrument. In addition to these multimedia functions, will also enter the analog signals into digital RGB Video signals (that is, video capture).
¢à computers and peripherals.
¢á other sources of information TV, DVD / VCD machines, video recorders and perturbation switch matrix, and so on
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