Simply put LED display by a number of combinations can be spliced display unit (display panel unit or units display box) constitute a screen, combined with an appropriate controller (master control system or board). Therefore, a variety of specifications of the display board (or tank units) with different techniques to control the controller can be composed of many kinds of LED displays, to meet the different environment, different display requirements.
A detailed break down LED display, which some of the following elements (in a more complex synchronous video screen as an example):

① structure of the metal framework
The full resolution by the general household aluminum (or aluminum angle aluminum tube side) constitute the framework within, with display boards and other switching power supply circuit board, as well as external border control to use brown aluminum alloy, aluminum or stainless steel package, or sheet metal one Made of.
Outdoor screen in accordance with the framework of screen size and the load-bearing capacity of I-beam or angle for the general composition, aluminum frame can be decorative plate.

② display unit
The display is the main part of the light-emitting materials and drive circuit. 000 is the full resolution of various specifications of the unit display board at the outdoor unit is the screen box.

③ scan panel
The board's function is to buffer the data to produce a variety of scanning signal duty cycle, as well as gray-scale control signal.

④ switching power supply
The 220V AC to DC to the various kinds of circuit.

⑤ twisted-pair cable transmission
Instrument control and display data generated by a variety of control signals from the twisted-pair cable transmission to-screen.

⑥ main controller
RGB input to the digital video signal buffer, the gray-scale transformation, the re-organization, and produce a variety of control signals.

⑦ dedicated graphics card and multimedia card
In addition to the display card with a computer's basic functions, but also at the same time RGB digital output signals and lines, the market, such as blanking signal to the main instrument. In addition to these multimedia functions will also enter the Video analog signal into a digital RGB signals (that is, video capture).

⑧ computer and its peripherals

⑨ other sources of information
TV, DVDVCD, camcorder and switch matrix, and so on.