The main parameters of LED large screen calculation method
LED display (LED panel): LED is light emitting diode, LED abbreviation, referred to as LED. Professional said it is a control by the semiconductor light-emitting diode display, a flat panel display, composed of a small LED module panel. Popular said it is composed of a lot of usually red light-emitting diodes, light off the light to show the characters. Used to display text, graphics, images, animation, video, video signals and other information display screen.
First, the indoor LED display calculation
(1) to understand the specific data (long, wide).
Calculate the number of blocks used for the cell board. Length of screen length or width = number of pre-made length or width ÷ unit board length or wide screen length.
Calculate the actual screen size. Actual screen length or wide use = unit board length or width × screen length or wide block number
Usually clear the screen outside the border size in the screen size on the basis of each side plus 5-10cm
(2) to understand the area of the screen, no length and width.
If only given the area, the length and width need to own calculations. You can press the length, width 4: 3 or 16: 9 ratio to count (generally by 16: 9), so the picture is good. This is because the ratio of 4: 3, 16: 9 can be directly broadcast TV signal, 4: 3 approximate square display, 16: 9 approximate rectangular display.
Second, the outdoor LED display calculation
(1) to understand the specific data (long, wide).
Calculate the number of boxes. Length of screen length or width = length or width of pre-made length or width ÷ unit box
Calculate the actual screen size. Actual screen length or width = box (specifications) long or wide × screen length or wide with the number of boxes
(2) to understand the area of the screen, no length and width. With the interior.
Third, LED display installation requirements
Power supply requirements: power supply wiring points should be within the screen size
220V mains power supply, fire line zero line grounding;
380V mains power supply, three fire line a zero line grounding;
More than kilowatt display should be installed with antihypertensive device.
Communication requirements: communication distance is defined as the communication line length.
Install the communication line with the length of the communication line used for the model of the installed display.
The communication line is prohibited from being routed in the same conduit as the power cord.
Installation requirements: the display installed around the level, not allowed to tilt
To install the upper and lower adjustment rod
Install the wall before the installation to fall off the hook
Installation of the ground to add positioning support bolts.
Fourth, the LED unit board current number of the formula is as follows
Unit board current = (total number of pixels per unit board * number of pixels per pixel * single LED current size / scan number) single LED current size is usually 0.005 to 0.02, usually can be 0.01A.
But some luminous tubes may need to use 0.02A current calculation, or even higher, this will produce greater power consumption. This board is slightly higher brightness but powerful heat, easy to burn out, the lamp will quickly aging, is a very bad design.
Fifth, LED display scanning method of calculation
Scan mode: in a certain display area, while the number of lines lit and the proportion of the entire area of the number of rows. Indoor single color is generally 1/16 scan,
Indoor full color is generally 1/8 scan,
Outdoor single color is generally 1/4 scan,
Outdoor full color is usually static scan.
LED display on the market today, there are two kinds of static scanning and dynamic scanning, static scanning is divided into static real pixels and static virtual, dynamic scanning is also divided into dynamic real and dynamic virtual.