Key concept of LED display
With the rapid development of technology of LED display screen, and the global LED market has a good scene, we have to say this is big time belongs to LED. Every field more and more companies and hotels have started to adopt the LED display. LED electronic display screen, full-color LED display and LED display products have diversified development, LED display the main technical key words as follows:
1, LED brightness: brightness light-emitting diode generally adopt the luminous intensity (Luminous Intensity) to experss, the unit is Candela CD; 1000ucd (micro Candela) =1 MCD (don Candela), 1000mcd=1 cd. single LED light intensity is 500ucd-50 mcd in Indoor, and outdoor single LED light intensity should normally be 100 mcd-1000 mcd, 1000 mcd even more.
2, LED pixel module: . Indoor display commonly used with 8*8 pixel module, 8 words 7 digital module. Outdoor display pixel module is 4 x 4, 8 x 8, 8 x 16 pixels and other specifications.
3, the pixel and pixel diameter: each can be individually controlled LED light-emitting unit in the LED display (point) is called a pixel (or pixel). Pixel diameter refers to the diameter of each pixel in millimeters.
4, Resolution: ranks number is called LED display LED display pixel resolution4, . Resolution is the total amount of display pixels, it determines the information capacity of a display screen.
5, gray: LED gray refers to level of Light and shade , base gray colors divide into 8 to 12 class. For example, if each of the color gray as 256, for a two-color color screen, the display color is 256 × 256 = 64K colors, also known as the 256-color display screen.
6, double colors: today’s most of color LED display screen is double color screen, that is, each pixel has two LED tube core: a red tube core, a tube core for green.
7, full color: red double colors plus blue color, three color constitute a full color. Since the blue tube and pure green die to form a full-color technology is mature now, so basic used the full color in the LED market.