Detailed explanation of the technical indicators of LED display

Analysis of related indicators of LED display

1) Physical indicators

Pixel center distance from pixel pitch The distance between the centers of adjacent pixels. (Unit: mm)

Density (points)

The number of pixels per unit area (unit: point / m2). There is a certain computational relationship between points and the same point spacing. The calculation formula is: density = (1000 ÷ pixel center distance). The higher the density of the LED display, the sharper the image and the smaller the optimal viewing distance range.

Optimum line of sight

View distance icon

Level up degree

The unevenness of the light-emitting diode, the pixel, the display module, and the display module when forming the plane of the LED display screen. The flatness of the LED display is not easy to cause the screen to be uneven in color when viewed.

DC Gear Motor differs from dc motor, with different type gearbox, Dc Gear Motor can get high torque through reducing the motor speed. Dc gear motor is including dc motor and gearbox. The motor can be brushed or brushless; the gearbox could be spur, worm or planetary. Dc Gear motor is like a lever.
Normally, we mark dc gear motor according to the size of the gearbox. Like 12Mm Dc Gear Motor, 13Mm Dc Gear Motor, 25Mm Dc Gear Motor, 37Mm Dc Gear Motor.
For the same gearbox, we can use different gear ratios by integrate different size gears. For the same gearbox, we can assemble different dc motors. Like 12mm gearbox, we can use both N10 motor and N20 motor.
To choose a dc gear motor for a project, it is necessary to know the request about speed(load or free load), also voltage of dc motor and the rated torque.


DS-12SSN20
DS-16RPR130


DS-25RS370
DS-58SW31ZY


DC Gear Motor

Dc Gear Motor,Micro Dc Gear Motor,Micro Dc Motor,Small Dc Gear Motors

SHENZHEN DONGMING MOTOR CO., LTD. , http://www.dongminggp.com

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