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Professional in producing projection screens over 11 years



Analysis of common terminology of full-color LED display_indoor full-color display|indoor led advertising screen|led color display

With the rapid development of LED display technology, LED electronic displays and LED full-color displays and other LED display products are showing diversified development. Today's LED displays are widely used in all walks of life. However, for For novices, many professional terms of LED display are not understood, so what are the common professional terms of LED display?   1, LED pixel module: LEDs are arranged in a matrix or pen segments, pre-made into standard sizes Module. Commonly used indoor display screens are 8*8 pixel modules and 8-character 7-segment digital modules. The outdoor display screen pixel module has 4*4, 8*8, 8*16 pixel specifications. The pixel module used for outdoor display screens is also called a collective tube bundle module because each pixel is composed of more than two LED tube bundles. 2. Full color: Red and green double primary colors plus blue primary colors, three primary colors constitute full color. Since the technology for forming a full-color blue tube and a pure green tube core is now mature, the market basically uses full-color.  3. Resolution: The number of rows and columns of pixels on the LED display is called the resolution of the LED display. Resolution is the total number of pixels of the display screen, which determines the information capacity of a display screen. 4. Grayscale: Grayscale refers to the degree of light-dark changes of pixels. The grayscale of a primary color generally has 8 to 12 levels. For example, if the gray scale of each primary color is 256 levels, for a dual primary color screen, the display color is 256×256u003d64K colors, which is also called a 256-color display screen. 5. Pixel and pixel diameter: Each LED light-emitting unit (dot) that can be individually controlled in the LED display is called a pixel (or pixel). Pixel diameter ∮ refers to the diameter of each pixel, in millimeters. 6. LED brightness: The brightness of light-emitting diodes is generally expressed by luminous intensity (Luminous Intensity), the unit is candela cd; 1000ucd (microcandela) u003d 1 mcd (millicandela), 1000mcd u003d 1 cd. The light intensity of a single LED for indoor use is generally 500ucd-50 mcd, while the light intensity of a single LED for outdoor use should generally be 100 mcd-1000 mcd, or even more than 1000 mcd. 7. Dual-primary color: Most color LED displays today are dual-primary color screens, that is, each pixel has two LED dies: one is red light and the other is green light. When the red light die is on, the pixel is red, when the green light is on, the pixel is green, and when the red and green die are on at the same time, the pixel is yellow. Among them, red and green are called primary colors.

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