|Different kinds of LED display screens|
Classification according to the application sites
Depending on the application of different sites can be divided into indoor and outdoor LED display two kinds.
◆ Indoor Screen
Is mainly used indoors, in the production process on the first of the light-emitting crystal lattice made of modules (or digital control), then the module stitching for a certain size display unit board, according to user requirements, to show the cell plate as the basic unit splicing into user needs size.
According to pixel size, indoor screen is divided into Ф2, Ф3, Ф3.75, Ф4.8, Ф5, Ф8, Ф10 so.
Is mainly used outdoors, in the production process on the first of the light-emitting die package into a single light-emitting diodes, known as single-lamp, outdoor screen for the production of a single lamp with a condenser is generally used to increase the role of reflective glass brightness; then more than just a single LED lamp package into a single tube or only the pixel-pixel modules, or pixel by pixel control module composed of dot-matrix type display unit cabinet, according to user needs and display applications sites, to a display unit cabinet as the basic unit composed of the required size. Box in the design should be sealed in order to achieve the purpose of water fog to make it to adapt to outdoor environment.
According to pixel size, outdoor screen is divided into P11, P14, P16, P19, P21, P26, P36 and other specifications.
Classification according to color
According to the color of LED used can be divided into single-color LED display, dual-color, full-color three kinds.
Each pixel is only one color, the majority red, because red light-emitting efficiency of higher get a higher brightness can also be green, but also can be a blend, that is part of the red, some green, some yellow .
Each pixel there are two kinds of primary colors red and green, you can overlay a yellow, in a gray-scale control of the situation, through the different gray-scale changes in red and green can be combined to make up to 65,535 kinds of colors.
◆ Full Color
Also known as the three primary colors, each pixel has three kinds of red, green and blue color, in a gray-scale control of the situation, through red, green and blue in different changes in gray, you can restore the good nature of the color combinations out of 16,777,216 kinds of colors .
According to functional classification
According to features and functionality of the screen can be divided into two LED display of screen, graphics screen and four kinds of digital screens.
Such displays are mainly used for display text, which itself comes with 16 × 16 or 24 × 24 dot matrix font, can work independently, can be used remote control to input Chinese characters, you can also use the computer on-line through the computer send a message. You can work offline. Because this kind of multi-screen, made of bar, it is called strip screen.
◆ Graphic Screen
Such displays are mainly used to display text and graphics, general non-grayscale control. It is through communication with the computer input information. Compared with the Article screen, graphic screen display fonts fonts advantage is rich, and can display graphics, and Shiping compared to graphic screen of the biggest advantages is a computer can control the multi-block screen, and can be off-line display
Type of display screen pixel and control of the computer monitor was one to one pixel mapping, there are gray-scale control, so its expression is extremely rich in multimedia card configuration, can play video signals. openness is good, real-time to reflect the computer monitor display.
◆ Digital Screen
Digital screen is the cheapest LED display, widely used in bank exchange rates, interest rates, hotel seafood price list, price lists and other rooms. In most cases, be installed in the digital screen on the screen to make up for the digital screen can not display text deficiencies.
◆ Hybrid Screen
That dot-matrix display digital mixing, it is most used in stock ticker.