Common LED display terminology
Full-color LED display diversified development to the emergence of a number of terminology, such as: LED electronic display, full-color LED screen ... Now the LED full-color display is more widely used in various industries, the emergence of terminology for newcomers is more puzzling, we will popularize the terminology.
LED brightness: light-emitting diode brightness expressed in luminous intensity, the unit is candelas
CD, 1000UCD = 1 mCD, 1000mCD = 1 CD. Indoor single LED light intensity is generally 400uCD-40 mCD, and outdoor single LED light intensity should be 80 mCD-800 mCD, or even more than 1000 mCD.
Pixel Module: LEDs are arranged into a matrix or pen section and pre-fabricated into standard-sized modules. Indoor display commonly used 8 * 8 pixel module, 8 words 7 segments digital module, outdoor display pixel module 4 * 4, 8 * 8, 8 * 16 pixels and other specifications. Outdoor display pixel module because each pixel by more than two LED tube bundle, so it is also known as a tube bundle module.
Pixel: Each LED light-emitting unit (point) that can be controlled individually in LED display is called pixel. Pixel diameter# is the diameter of each pixel in millimeters.
Resolution: The number of rows and columns of pixels in a full-color display is called the full-color screen resolution. Resolution is the total number of pixels in a display, which determines the information capacity of a display.
Gray scale: gray scale refers to the degree of change in the luminous brightness of the pixel, a base color of the gray scale generally have 8 to 12 levels. For example, if the grayscale of each base color is 256 levels, for dual-color color screen, the display color is 256 × 256 = 64K colors, also known as the screen for the 256-color display.
Dual color: most of today's color LED display is a dual-color color screen, that is, each pixel has two LED cores: one for the red core, one for the green core. Red light tube core when the pixel is bright red, green light tube core when the pixel is bright green, red and green two tube core at the same time when the pixel is bright yellow. Which red, green is called the base color.
Full color: red and green dual-color plus blue base color, three base colors constitute a full-color. Because of the blue tube and pure green tube core of the full-color technology is now mature, so the market is basically full-color.
Introduced full-color LED display professional terminology, I believe that the full-color display will not be so unfamiliar, LED industry content relevance is relatively strong, you need to understand the various aspects and then decide to buy.
