The working principle of LED electronic display screen is mainly analyzed from two aspects:

1、LED electronic display system composition:

This system consists of computer specialized equipment, display screen, video input port and system software.

Computer and special equipment: computer and special equipment directly determines the function of the system, according to the user's different requirements for the system to choose different types.

Display screen: The control circuit of the display screen receives the display signal from the computer, drives the LED to emit light to produce the picture, and outputs the sound by adding the amplifier and speaker.

Video Input Port: Provide video input port, the signal source can be VCR, DVD player, camcorder, etc., support NTSC, PAL, S_Video and other standards.

System software: provide special software for LED playback, powerpoint or ES98 video playback software.

2、 LED electronic display system functions

The system has the following functions:

Computer as a processing control center, electronic screen and computer monitor (VGA) window a region point by point correspondence, display content real-time synchronization, screen mapping position adjustable, can be convenient to arbitrarily select the size of the display screen.

Display dot matrix using ultra-high brightness LED light-emitting diodes (red, green dual-color), 256 levels of gray scale, color change combinations of 65536 kinds of rich and realistic colors, and support for VGA 24-bit true color display mode.

Equipped with graphic information and three-dimensional animation playback software, can play high-quality graphic information and three-dimensional animation. The playback software displays information in more than ten forms such as covering, closing, opening curtains, alternating colors, zooming in and out, and so on.

Using special program editing and playback software, you can edit, add, delete and modify text, graphics, images and other information through different input means such as keyboard, mouse and scanner. Orchestration stored in the control host or server hard disk, program playback order and time, to achieve the integration of alternate playback, and can be superimposed on each other.

Can receive display VCR, DVD player and other video signals .

Technical characteristics

1、Excellent effect: the use of dynamic scanning technology, the screen is stable, no clutter, clear image effects, animation effects are vivid and diverse; video effects are smooth.

2, rich content: can display text, charts, images, animation, video information.

3、Flexible mode: can be programmed by the user to display any mode.

4, quality assurance: the use of imported light-emitting materials, high-quality IC chip, noise-free high-power power supply.

5, large amount of information: the display of information is not limited.

6、Easy maintenance: modular design, easy to install and maintain.

7, long-distance transmission: the use of advanced data transmission technology, the use of gigabit network high-speed data communication chip, support for non-relay long-distance transmission.

8、Stable and reliable: adopting the latest international technology, using the world's popular ultra-large-scale devices to improve the stability and reliability of the control system, and can support online upgrading.

9, high efficiency and energy saving: advocate low-carbon, green environmental protection, LED display is moving towards a more energy-saving direction!

Advantages

LED display can show changes in numbers, text, graphics images; not only can be used for indoor environments can also be used for outdoor environments, with a projector, TV wall, LCD screen can not be compared with the advantages.

The reason why LED has been widely recognized and rapid development, and it has its own advantages are inseparable. These advantages are summarized as follows: high brightness, low operating voltage, low power consumption, miniaturization, long life, impact resistance and stable performance.

LED development prospects are extremely broad, is moving towards higher brightness, higher weather resistance, higher luminous density, higher luminous uniformity, reliability, full-color direction.