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LED display screen is a display method that controls semiconductor light-emitting diodes, consisting of tens of thousands to hundreds of thousands of semiconductor light-emitting diode pixels arranged uniformly. Let's step into the wonderful world of LED displays together:

1、 Classification

According to the displayed content:

Divided into graphic display screens and video display screens. The graphic display screen can synchronize with the computer to display Chinese characters, English text, and graphics; The video display screen is controlled by a microcomputer and combines graphics, text, and images to play various information in real-time, synchronously, and clearly. It can also display 2D and 3D animations, videos, TV, VCD programs, and live broadcasts.

By color:

Single color display screen: a single color (red or green).

Dual color display screen: red and green dual color display, 256 levels of grayscale, capable of displaying 65536 colors.

Full color display screen: The three primary colors of red, green, and blue, with 256 levels of grayscale, can display over 16 million colors.

According to usage scenarios: divided into indoor display screens and outdoor display screens. Indoor display screens have small light-emitting points, generally ranging from 3mm to 8mm, with a display area of several to tens of square meters; The outdoor display screen usually covers an area of tens to hundreds of square meters, with high brightness and can work under sunlight. It has certain windproof, rainproof, and waterproof functions.

2、 Working principle

The working principle of LED display screen is designed based on the characteristics of light-emitting diodes. By adjusting the working state of the control circuit and changing the brightness of the LED, various display information such as text, patterns, and images can be achieved. The working process is that when the LED is in normal working condition, its current is very small and the light emission is weak. When the current reaches a certain value, it will automatically light up and emit bright light.

3、 Technical features

Excellent effect: Using dynamic scanning technology, the image is stable, free of clutter, the image effect is clear, the animation effect is vivid and diverse, and the video effect is smooth.

Rich content: can display text, charts, images, animations, and video information.

Flexible approach: Users can freely arrange display modes.

Quality assurance: using imported luminescent materials, high-quality IC chips, and noise free high-power power supply.

Large amount of information: The displayed information is not limited.

Easy maintenance: modular design, easy installation and maintenance.

Long distance transmission: adopting advanced data transmission technology, using gigabit network high-speed data communication chips, supporting relay free long-distance transmission.

Stable and reliable: Adopting the latest international technology and using the world's popular ultra large scale devices, the stability and reliability of the control system have been improved, and online upgrades can be supported.

Efficient and energy-saving: Advocating low-carbon and green environmental protection, LED displays are developing towards a more energy-efficient direction.

4、 Advantages

High brightness: LED display screens have high brightness and can adjust high and low parameters, making them suitable for use in different lighting environments.

No seams: The LED display screen has no traces of splicing during splicing, and the entire screen is consistent, making it particularly suitable for full screen display.

Flexible installation environment: can be used for indoor and outdoor environments, and has certain windproof, rainproof, and waterproof functions.

5、 Disadvantages

Dead light rate: Due to the fact that the LED display beads are all soldered onto the PCB board, poor soldering techniques can easily lead to dead light rates, where the beads fall off and do not display.

Resolution: Due to the limitations of packaging technology, the dot pitch of LED displays cannot be as small as that of LCDs, resulting in average clarity. When viewed up close, the image is not particularly clear.

6、 Application Fields

LED display screens have become one of the mainstream products of flat panel displays due to their outstanding advantages, and have been widely used in many fields of social economy, mainly including:

1. Securities trading and financial information display.

2. Display of road traffic information.

3. Display of passenger guidance information at ports and stations.

4. Display of sports venue information.

5. Display of airport flight status information.

6. Information display in the dispatch command center.

7. Business promotion and information display in service areas such as postal, telecommunications, shopping malls, etc.

8. New advertising media products.

9. Performances and gatherings.

10. Exhibition.

7、 Development Trends

With the continuous advancement of technology, LED displays are developing towards higher brightness, higher weather resistance, higher luminous density, higher luminous uniformity, higher reliability, and full-color direction. Especially MLED (a collective term for Mini LED and Micro LED) technology, with its excellent display performance and broad application prospects, is regarded as the next generation of display technology.

In summary, LED display screens have many advantages and a wide range of application fields. With the continuous advancement of technology and the reduction of costs, their market prospects will become increasingly broad.