Working principle of LED full color display screen

Display performance: LED display is divided into text LED display, text LED display, computer video LED display, TV video LED display and market led display. Market led display generally includes securities, interest rates, futures and other uses of LED display.

（1） System composition;

The system consists of computer special equipment, display screen, video input port and system software.

Computer and special equipment: computer and special equipment directly determine the function of the system, and different types can be selected according to different requirements of users for the system.

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

Video input port: provide video input port, signal source can be VCR, VCR, camera, ฯลฯ, support NTSC, pal, S_ Video and other systems.

System software: provide led play special software, PowerPoint or es98 video playback software.

（2） System functions;

The system has the following functions: & nbsp; & nbsp;

Taking the computer as the processing control center, the electronic screen corresponds to a certain area of the computer display (VGA) window point by point. The display content is synchronized in real time. The screen mapping position is adjustable, and the size of the display screen can be easily selected.

The display dot matrix adopts ultra-high brightness LED light emitting tube (red and green double primary colors), 256 gray levels, 65536 color combinations, rich and vivid colors, and supports VGA 24 bit true color display mode.

Equipped with graphic information and 3D animation playback software, it can play high-quality graphic information and 3D animation. There are more than ten kinds of ways to display information, such as covering, closing, opening curtain, alternating colors, enlarging and shrinking, ฯลฯ.

Using special program editing and playing software, the information such as text, graphics and image can be edited, added, deleted and modified by keyboard, mouse, scanner and other input means. The arrangement is stored in the hard disk of the control host or server, and the program playing sequence and time can be integrated and alternately played, and can be overlapped with each other.

It can receive and display video signals such as VCR and VCR.

Brief introduction and classification of LED electronic display system;

In recent years, LED display market has been developed rapidly, and has been widely used in banks, posts and telecommunications, taxation, สนามบิน, สถานี, securities markets and other trading markets, hospitals, electricity, ศุลกากร, stadiums and other occasions that need to be announced and publicized.

LED is the abbreviation of light emitting diode. LED display is a display device composed of LED array. It is driven by low voltage scanning and has the following advantages: 1. Low power consumption; 2. Long service life; 3. Low cost; 4. ความสว่างสูง; 5. Large viewing angle; 6. Long visual distance; 7. Various specifications and varieties.

LED display product series: & nbsp; & nbsp;

ก. Single color, color bar display screen, บี, computer controlled digital display screen, C, monochrome graphic display screen, ดี, three color (สีแดง, สีเขียว, yellow) graphic display screen, e, dot matrix and digital mixed display screen (stock screen), F, dual primary color (สีแดง, สีเขียว) multimedia video synchronous display screen, ช, three primary color (สีแดง, สีเขียว, blue) multimedia video synchronous display screen;

LED display screen classification: & nbsp; & nbsp;

According to the display color, it can be divided into single red, single green, red and green double primary color, สีแดง, green and blue three colors;

According to the use function, it can be divided into graphic display screen, multimedia video display screen, market display screen and bar display screen;

According to the use environment, it can be divided into indoor display screen, outdoor display screen and semi outdoor display screen;

According to the luminescent point diameter, it can be divided into three parts: φ 3.0, φ 3.7, φ 4.8, φ 5.0, φ 8.0, pH8, PH10, PH16, PH20, ฯลฯ.

In the basic non market led display screen, indoor LED display screen can be divided into Φ 3mm, Φ 3.75mm, Φ 5mm, Φ 8mm, and Φ 10mm according to the adopted single point diameter; and the outdoor LED display screen can be divided into Φ 16mm, Φ 19mm, Φ 22mm and Φ 26mm according to the pixel diameter. Market led display can be divided into 2.0cm (0.8นิ้ว), 2.5ซม (1.0นิ้ว), 3.0ซม (1.2นิ้ว), 4.6ซม (1.8นิ้ว), 5.8ซม (2.3นิ้ว), 7.6ซม (3นิ้ว) according to the size of nixie tube used.

สีที่แสดง: LED display screen is divided into single primary color LED display screen (including pseudo color LED display screen), double primary color LED display screen and full-color (three primary color) led display screen. According to the gray level, it can be divided into 16, 32, 64, 128, 256 gray LED display.

LED display technology features: & nbsp; & nbsp;

ก. Excellent effect: the dynamic scanning technology is adopted, the picture is stable, without impurities, the image effect is clear, the animation effect is vivid and diverse; the video effect is smooth; บี, the content is rich: can display the text, chart, image, animation, video information; C, the way is flexible: the display mode can be arranged by the user; ดี, quality assurance: the imported luminous materials, high-quality IC chips, and High power power supply without noise; e. large amount of information: unlimited information displayed; F. convenient maintenance: modular design, easy installation and maintenance.