亚洲精品在线网站-亚洲精品在线网-亚洲精品在线视频观看-亚洲精品在线视频-花床单男孩aj-护士在办公室里被躁视频

along withLED display screenWith the rapid development of technology, LED display screen products have shown diversified development. Nowadays, LED display screens are widely used in various industries. However, for beginners, many professional terms of LED display screens are unfamiliar. So, what are the common professional terms of LED display screens?

1. LED brightness: The brightness of a light-emitting diode is generally expressed in luminous intensity, measured in candela cd; 1000 micro candela=1 millicandela, 1000 mcd=1 cd. The light intensity of a single LED used indoors is generally 500ucd-50 mcd, while the light intensity of a single LED used outdoors should generally be 100 mcd-1000 mcd, or even above 1000 mcd.

2. LED pixel module: LEDs are arranged in a matrix or pen segment, prefabricated into standard size modules. The commonly used indoor display screens include 8 * 8 pixel modules and 8-character 7-segment digital modules. The outdoor display screen pixel module comes in specifications such as 4 * 4, 8 * 8, and 8 * 16 pixels. The pixel module used for outdoor display screens is also called a bundle module because each pixel is composed of two or more LED tubes.

3. Pixel and pixel diameter: Each individually controllable LED emitting unit (point) in an LED display screen is called a pixel (or pixel). Pixel diameter ≠ refers to the diameter of each pixel, measured in millimeters

4. Resolution: The number of rows and columns of pixels in an LED display screen is called the resolution of the LED display screen. Resolution is the total number of pixels in a display screen, which determines the information capacity of a display screen.

5. Grayscale: Grayscale refers to the degree of change in the brightness of a pixel's light emission, and the grayscale of a primary color generally ranges from 8 to 12 levels. For example, if the grayscale of each primary color is 256 levels, for a dual primary color screen, its display color is 256 x 256=64K colors, also known as a 256 color display screen.

6. Dual primary color: Most color LED displays today are dual primary color screens, meaning that each pixel has two LED chips: one is a red chip and the other is a green chip. When the red light tube core is lit, the pixel is red, when the green light tube core is lit, the pixel is green, and when both red and green tube cores are lit at the same time, the pixel is yellow. Red and green are referred to as the primary colors.

7. Full color: The combination of red and green dual primary colors and blue primary colors forms full color. Due to the mature technology of forming full-color blue tubes and pure green tube cores, full-color is generally used on the market.

8. SMT and SMD: SMT is surface assembly technology, which is currently the most popular technology and process in the electronic assembly industry; SMD is a surface mount device.