On the LED display, there are a lot of professional terms, saying that there are many pixels, point spacing, scanning, etc., then on these common LED display noun concept, specifically how to explain, the following is the joint company The reference material.
(1) Pixels: is the smallest imaging unit of the LED display. Commonly known as "point" or "pixel".
(2) point spacing: is the distance between two pixels, in mm mm units. The more dense the point, the more pixels per unit area, the more delicate the screen, the more expensive the display screen. P6, P10, P12, P16, P20, etc., wrote a "how to choose according to the point spacing LED display" article, which on the point of the pitch And choose to do a detailed description.
(3) scan mode: scan mode determines the form of connection between the modules, scanning methods are 1 / 16,1 / 8,1 / 4,1 / 2, static these. Because the LED display is refreshed by line display, scanning method will determine the way to refresh the display, such as 1/16 is a refresh each line, 16 lines of a scan cycle, need to ABCD four signal control; Each refresh 1 line, 8 behavior of a scan cycle, the need to ABC three signal control; other and so on. If you use the same LED lights, 1/16 sweep brightness than 1/8 low, static (1/1) brightness is the highest. Indoor screen generally use 1/16 sweep, outdoor and semi-outdoor generally use 1/16 or 1/8. For the environment placed on the screen is often subject to intense sunlight, it is best to use a quarter scan.
(4) display module: composed of a number of display pixels, the structure of the independent composition of the smallest LED display unit. Indoor screen with 8x8 display module, that is, each display module has 64 pixels; outdoor screen using a single lamp beads, usually by 1-3 the same or different colors of the lamp beads constitute a module pixel.
(5) display module: the circuit and the installation structure and has a display function of the composition of the LED display of the independent unit. Simply to facilitate the assembly and display, the factory's semi-finished products are usually provided in the form of display modules, a number of display modules plus display driver together. Indoor screen commonly known as "unit board"; outdoor screen called "module", and then a number of modules with chassis, fans, power and other structures together into a "box", mostly for large full-color screen. Indoor panel unit board usually 64x32 (64 lines 32 lines, composed of 32 modules), 64x16 (64 columns 16 lines, composed of 16 modules); outdoor screen module usually 64x32, 32x32, 32x16, 16x16, 16x8 Variety.
(6) LED display screen body: the unit board / module / box by a certain way together, coupled with the control card / control system, power and frame, etc. constitute the LED display.