ការបង្ហាញ LED ការផ្គត់ផ្គង់ថាមពលនិងវិធីសាស្រ្តគណនាថាមពល

The application of LED screens is becoming increasingly widespread, from small storefronts to large plazas. So, how much do you know about LED screens?

1、 Calculation method for point spacing

The center distance between each pixel and each adjacent pixel; Each pixel can be one LED light [such as PH10 (1r)], two LED lights [such as PH16 (2r)], or three LED lights [such as PH16 (2R1G1B)], with a pixel spacing of 16MM for P16; The point spacing of P20 is 20MM; The point spacing of P12 is 12MM

2、 Calculation of screen length and width

Length and height calculation method: Point spacing x number of points=length/height

ឧទាហរណ៍: PH16 length=16 points x 1.6 cm=25.6 cm height=8 points x 1.6 cm=12.8 cm

PH10 length=32 points x 1.0 cm=32 cm height=16 points x 1.0 cm=16 cm

3、 Calculation of the number of screen modules

Calculation method for the number of modules used on the screen: Total area ÷ Module length ÷ Module height=Number of modules used

ឧទាហរណ៍, the number of modules used for a 10 square PH16 outdoor monochrome LED display screen is equal to: 10 square meters ÷ 0.256 meters ÷ 0.128 meters=305.17678 ≈ 305

More accurate calculation method: Length module usage x Height module usage=Total number of modules used. ឧទាហរណ៍: PH16 monochrome LED display screen with a length of 5 meters and a height of 2 ម៉ែត្រ. Module usage: Length module usage=5 meters ÷ 0.256 meters=19.53125 ≈ 20 Height module usage=2 meters ÷ 0.128 meters=15.625 ≈ 16 Total number of modules used=20 × 16=320

4、 Calculation method for visible distance of LED display screen

RGB color mixing distance: The distance at which three colors are mixed into a single color: LED full-color screen viewing distance=pixel spacing (មមលក់ម្យ៉ាង) × 500/1000

The minimum viewing distance that can display smooth images: LED display screen visual distance=pixel spacing (មមលក់ម្យ៉ាង) × 1000/1000

The most suitable viewing distance is the distance at which the viewer can see a highly clear image: The optimal viewing distance for an LED display screen is the pixel spacing (មមលក់ម្យ៉ាង) multiplied by 3000/1000

The farthest viewing distance: The farthest viewing distance of an LED display screen is equal to the screen height (ម៉ែត្រ) multiplied by 30 (times)

5、 Calculation method for scanning of LED display screen Scanning method: The ratio of the number of rows lit up simultaneously within a certain display area to the total number of rows in the entire area. Indoor single and dual color display is generally 1/16 ការស្កែល, LED display calculation method | LED electronic display power calculation | LED power calculation method Indoor full-color display is generally 1/8 ការស្កែល, LED display calculation method | LED electronic display power calculation | LED power calculation method

Outdoor single and dual color is usually 1/4 ការស្កែល,

Outdoor full-color scanning is generally static scanning. At present, there are two driving methods for LED displays in the market: static scanning and dynamic scanning. Static scanning is divided into static real pixel and static virtual, while dynamic scanning is also divided into dynamic real image and dynamic virtual; The driving components generally use domestically produced HC595, Taiwan MBI5026, and Japan Toshiba TB62726, with 1/2 ការស្កែល, 1/4 ការស្កែល, 1/8 ការស្កែល, និង 1/16 scan options.

6、 Calculation method for the number of power supplies for LED display screens

(The power supply is 30A and 40A; monochrome is 8 unit boards with 1 40A power supply, and dual color is 6 unit boards with 1 power supply; if the full-color unit board is fully lit, it should be calculated based on the maximum power at full brightness)

a. The number of unit boards that a power supply can carry is equal to the voltage of the power supply multiplied by the current of the power supply divided by the horizontal pixel count of the unit board divided by the vertical pixel count of the unit board/0.1/2. ឧទាហរណ៍, for a semi outdoor P10:5V40A power supply, it can carry 5 * 40/(32 * 16 * 0.1/0.5)=7.8, whichever is larger; LED display calculation method | LED electronic display power calculation | LED power calculation method

b. Calculate the required number of power supplies based on the total power of the screen=average total power/power of one power supply (វ៉ុលផ្គត់ផ្គង់ថាមពល * power supply current). ឧទាហរណ៍, if a screen has 12 P10 modules for long use and 3 P10 modules for high use, totaling 36 modules, then the required number of power supplies is 32 * 16 * 0.1 * 36 * 0.5/5/40=4.6, whichever is greater (5 power supplies)

7、 Calculation method for power of LED display screen

LED display calculation method | LED electronic display power calculation | LED power calculation method

The formula for power is P=UI LED display calculation method | LED electronic display power calculation | LED power supply calculation method.