What are the classifications and uses of LED display screens?

The following are the related materials collected by Lianchengfa Group, a brand manufacturer of LED display screen, hoping to help you.

First, according to the classification of primary colors:

Monochrome LED display screen

Monochrome LED display screen is incredible, that is, there is only one color of screen backlight, most of which are fashionable blue or green backlight, and of course there are other unusual single colors, such as red and yellow. Monochrome LED displays are mostly red, because red has higher luminous efficiency, so it can obtain higher brightness, green or mixed color, that is, some are red, some are green and some are yellow.

two-color LED display

two-color LED display is an LED display made by putting red and green LEDs together as a pixel. Each pixel has two primary colors, red and green, which can be superimposed into yellow. Under the condition of gray control, up to 65,535 colors can be combined through the change of different gray levels of red and green.

full-color LED display

Full-color LED display is to put red, green and blue LED tubes together as a pixel LED display. Full-color LED display screen is also called tricolor, and each pixel has three primary colors of red, green and blue. Under the condition of gray control, the colors of nature can be well restored by changing the different gray levels of red, green and blue, and 16777216 colors can be combined.

2. Classification according to the use environment:

Indoor LED display screen

Indoor LED display screen is mainly used indoors. In the manufacturing process, firstly, light-emitting crystal grains are made into dot matrix modules (or digital tubes), and then the modules are spliced into display unit boards with a certain size. According to user requirements, the display unit boards are spliced into the sizes required by users. According to the size of pixels, indoor screens are divided into P2, P3, P3.75, P4.8, P5, P8, P1, etc.

Generally, the indoor screen area is less than 1 square meter to more than 1 square meters, with high point density. When it is used in non-direct sunlight or lighting environment, the viewing distance is several meters away, and the screen body does not have sealing and waterproof ability. The indoor display screen is mainly dot matrix module, because the brightness of the display screen is not high when used indoors, and the use of dot matrix module has a high cost performance.

Outdoor LED display screen

Outdoor LED display screen is mainly used outdoors. In the manufacturing process, firstly, the light-emitting crystal grains are packaged into a single light-emitting diode, which is called a single lamp. The single lamp used for making outdoor screen generally adopts a reflective cup with condensing function to improve brightness; Then, a plurality of LED single lamps are packaged into a single pixel tube or pixel module, and the pixel tube or pixel module forms a dot matrix display unit box, and according to the needs of users and display application places, a display unit box is used as a basic unit to form the required size. The box should be sealed in design to achieve the purpose of waterproof and fog prevention and adapt it to the outdoor environment. According to the size of pixels, outdoor screens are divided into *11, P14, *16, *19, *21, *26, P36 and other specifications.

generally, the outdoor screen area ranges from a few square meters to dozens or even hundreds of square meters, with sparse dot density (mostly 1-4 dots per square meter) and luminous brightness of 3-6cd/ square meter (different directions, different brightness requirements). It can be used in direct sunlight, and the viewing distance is tens of meters away. The screen body has good wind, rain and lightning protection capabilities.

semi-outdoor LED display screen

the semi-outdoor screen is between outdoor and indoor, with high luminous brightness, and can be used outdoors without direct sunlight. The screen body has a certain seal, usually under the eaves or in the window.

3. Classification according to display performance:

Graphic display screen

supports files such as TXT and BMP, and can display simple plane pictures. At the same time, it also has the function of offline operation. If the display content is not changed, you can just turn on the power supply of the screen body without turning on the control machine. The display mode supports more than ten modes, such as expansion and instant. The content stay can be adjusted arbitrarily between -255 seconds (including static), and it can automatically display different contents that users want to display circularly, which can be divided into three types: permanent stay, temporary stay and real-time. After production, it is sent to the screen through RS232 and RS485 serial ports.

Video display

The display content is synchronized in real time, and the size of the display screen can be selected conveniently and arbitrarily. The color change combination is * * ***256X256X256=16,777,216, and the scanning field frequency is greater than 2 Hz, so that people can hardly see the scanning line with their naked eyes, thus realizing the correction design of high gamma speed and no gray loss. The parameters can be selected by users, and various gray levels can be easily realized. Equipped with advanced and perfect control, production and playback software, it is easy to learn and use, has dozens of playback modes, can play video information, and has the function of automatic black screen when the computer is turned on and off, which improves the service life of the display screen and avoids the messy and unintentional interface of the display screen when the computer is turned on and off.

the led strip screen

is usually one or two lines of monochrome or two colors, and a special remote controller can be used. It has offline operation function, that is, the control machine can be turned off after the display content is edited and sent to the display screen. There are three storage modes of display content: permanent storage, temporary storage and real-time. It can display different contents in a scrolling way, and can display 4 Chinese characters. After production, it is generally sent to the screen through RS232 serial port and controlled by the remote controller. The communication line adopts twisted pair, which has strong anti-interference ability. RS232 interface is used within 1 meters and RS485 interface is used within 1-5 meters.

As a new media and a new decorative material, LED strip screen can be embedded in many interior decorations to make the decoration more dynamic. The constantly updated subtitles can be used as new bulletin boards, promotional offers and promotional information. It greatly improves the grade of interior decoration and has a good visual effect. The installation and use of LED strip screens have certain technical content, which restricts the development in the advertising industry. Mastering LED technology can improve the technical content of interior decoration and expand business.

LED curtain wall screen

LED curtain wall screen is composed of pixel unit boards, which can display all kinds of dynamic pictures of patterns, characters and patterns with LED synchronous video synchronous control system, and can produce all kinds of color changes. A multimedia LED display system which is suitable for the digital stage of film and television broadcasting as the stage background and presents virtual scenes and color effects.

LED digital screen

Each guardrail tube has 6, 8 and 16 pixels, which can be controlled offline or connected to a computer for synchronous control; Can display a variety of dynamic effects. The control system is developed and edited by special isochromatic programming software, and the digital tube control pattern is easy to change. Just copy the edited pattern format file into the CF card. The digital tube controller can be controlled independently or online, and the digital tube can be installed and arranged in any way, which is suitable for various complex engineering requirements. The digital tube, controller and power supply are connected by standard male and female plugs, which is convenient and fast, and has a unique shape design and a brand-new outdoor waterproof structure, which is widely used in various building curtain walls, amusement landscape decoration lighting, various bridge lighting and other places.