Yunhai share; several common LED display technology

Yunhai share; several common LED display technology
There are many kinds of LED display screens, and different types of display screens have different uses. Each has its own advantages and disadvantages and should be selected correctly according to needs.
1. Full-function display and smart display
There are two major types of led display, which are called full-function type displays, and others are called smart display types. Both are assembled using an international standard 8×8 LED matrix module. The surface of the screen is identical and the basic display function is the same. The main differences are:
1 The intelligent display does not need to connect the upper computer at ordinary times, the display screen has built-in CPU, can save the power of a plurality of frames while being out of power, can leave the upper computer to run independently. Some screens also have a clock chip that automatically displays the date and time. When it is necessary to modify the display content, the computer can be modified by connecting the RS-232 interface. The full-function display must be connected to a microcomputer to work.
2 The display mode of smart display is usually less, there are pop-up type, pull-out type, roll-up type and roll-down type. The full-function display has a variety of display modes. If professional software is used to create broadcast programs, there are infinitely many display modes.
3 The operation of the intelligent display is simple, and the full-function display needs to be operated and maintained by a special person. 9 If you want to create an animation program, you also need specialized knowledge.
2. Monochrome display
(1) monochrome display
The standard 8x8 monochromatic LED matrix module standard component, which is generally red, can display various characters, data, and two-dimensional graphics. The indoor monochrome display is economical and practical, with the disadvantage that the colors are somewhat monotonous.
(2) Color display
A standard 8×8 dual-base light emitting diode matrix module is used, and each pixel has red and green two light emitting diodes. When two tubes are lighted at the same time, $ is displayed, so the bi-color display can emit three colors of red, green, and yellow, and can display various colored characters, data, and animation. In addition, it can also be connected with various data, real-time display of dynamic data and advertising, with better information display utility, is currently using a more extensive LED display.
(3) color gray display
A standard 8×8 dual-base LED matrix module is adopted. Each pixel has three colors of red, yellow and green. Each of the base colors has 16×16 gray levels or 2.56×256 gray levels or even more colors.
The color gray screen is rich in levels and has excellent performance. It can display photos, images, three-dimensional graphics, animations, and video images. The performance is delicate, rich, and vivid.
3. Enthusiastic density display and high-density display
The density of the display is related to the pixel diameter, and the smaller the pixel diameter, the higher the density of the display. For a specific selection, the closer the viewing distance, the higher the display density; the further the viewing distance, the lower the display density. In an 8 x 8 standard LED matrix module for indoor displays, φ5mm and 泖. Φ3.7mm is the most common.
The most common LED displays are single-color screens, dual-color screens, three-color screens, black-and-white screens, full-color indoor display screens, LED notebook screens, mobile phones, and various instrumentation displays. Show.

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