What types of LED displays are there?

The detailed classification of led display screen is still complicated, and it will be distinguished according to primary colors, use environment, application types and so on. Thanks to the powerful giant color photoelectric for providing information.

The differences of LED display screens are classified according to the 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, yellow and so on. Monochrome LED displays are mostly red, because red has higher luminous efficiency, so you can get higher brightness, green or mixed colors, that is, some are red, some are green and some are yellow.

Two-color LED display screen

Two-color LED display screen is an LED display screen 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. In the case of gray scale control, as many as 65535 colors can be combined by changing the different gray scales of red and green.

Full color led display screen

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. In the case of gray scale control, by changing the different gray scales of red, green and blue, the colors of nature can be well restored and combined into 167772 16 colors.

The difference of LED display screen is classified according to the use environment.

Indoor LED display screen

Indoor LED display screen is mainly used indoors. In the manufacturing process, firstly, the luminescent grains are made into lattice modules (or digital tubes), and then the modules are spliced into a display unit board with a certain size. According to the user's requirements, the display unit board is spliced into the size required by the user. Indoor screens are divided into P2, P3, P3.75, P4.8, P5, P8, P 10 and so on according to pixel size.

Generally, the indoor screen area ranges from less than 1 m2 to more than1m2, with high dot density. When used in non-direct sunlight or light environment, the viewing distance is several meters away, so 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 it is used indoors, and the use of dot matrix module has a high cost performance.

outdoor led display

Outdoor LED display screen is mainly used outdoors. In the manufacturing process, firstly, the light-emitting die is packaged into a single light-emitting diode, which is called a single lamp. Generally, the single lamp used to make outdoor screen adopts 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 a dot matrix display unit box is formed by the pixel tube or pixel module. According to the needs of users and display application places, the display unit box is used as the 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 to the outdoor environment. Outdoor screens are divided into * 1 1, P 14, * 16, * 19, *2 1, *26, P36 and other specifications according to pixel size.

Generally, the outdoor screen area ranges from several square meters to dozens or even hundreds of square meters, with sparse dot density (mostly per square meter 1000-4000 points) and luminous brightness of 3000-6000 CD/ square meter (different directions require different brightness). It can be used in direct sunlight with a viewing distance of tens of meters. The screen body has good wind, rain and lightning protection capabilities.

Semi-outdoor LED display

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

The differences of LED display screens are classified according to the display performance.

According to the display performance, LED display screen can be divided into: monochrome graphic screen, two-color graphic screen, two-color video screen, synchronous display screen, three-color video screen (full color screen), monochrome bar screen, two-color bar screen, market display screen and various graphics cards. Quote LED displays usually include LED displays for securities, interest rates, futures and other purposes.

Graphic display screen

Support TXT, BMP and other files, you can display simple plane pictures. At the same time, it also has the function of offline operation. If you don't change the display content, you can only 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. Content retention can be adjusted arbitrarily (including static) between 0-255 seconds, and different content that users want to display can be displayed automatically and circularly, which can be divided into three types: permanent retention, temporary retention and real-time. After the production is completed, it is sent to the screen through RS232 and RS485 serial ports.

Video display screen

The display content is synchronized in real time, and the display screen size can be conveniently selected at will. The color-changing combination * * * 256x256 =16,777,216, and the scanning field frequency is greater than 200 Hz, which makes people almost invisible to the naked eye, and realizes the design of gamma high-speed correction without gray loss. Parameters can be selected by users, and various grayscales 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 disorder and unintentional interface of the display screen when the computer is turned on and off.

LED strip screen

Usually one or two lines are monochrome or bicolor, and a dedicated remote control is enough. It has offline operation function, that is, after the display content is edited and sent to the display screen, the control machine can be turned off. There are three storage modes for display content: permanent storage, temporary storage and real-time storage. Different contents can be scrolled and 4000 Chinese characters can be displayed. After the production is completed, 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. The communication distance within 100 meters adopts RS232 interface, and the communication distance within 100-500 meters adopts RS485 interface.

As a new media, LED strip screen is also a new decorative material, which 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 indoor decoration and has good visual effect. The installation and use of LED strip screen has certain technical content, which restricts the development in advertising industry. Mastering LED technology can improve the technical content of interior decoration and expand business.

Curtain led screen

The LED curtain wall screen is composed of pixel unit boards. Using LED synchronous video synchronous control system, it can display various patterns, characters and dynamic pictures of patterns, and can produce various 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, 16 pixels, which can be controlled offline or connected to a computer for synchronous control. Various dynamic effects can be displayed. The control system is developed and edited by special isochromatic programming software, and the control mode of digital tube is easy to change. Just copy the edited pattern format file to the CF card. The digital tube controller can be controlled independently or online, and the digital tubes can be installed and arranged at will, 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. The unique shape design and brand-new outdoor waterproof structure are widely used in various building curtain walls, amusement landscape decoration lighting, various bridge lighting and other places.