1.What is LED Display

LED display is a video display made up of light-emitting diodes, or LEDs. LEDs are small electronic devices which produce a very efficient light source. They are widely used in everyday devices from traffic lights to remote controls. Many LED displays are used outdoors in billboards and store signs.

A typical LED display is composed of many LED panels, which are sometimes used as a form of lighting or illumination rather than for display. Two classes of LED panels exist: conventional LED panels, which use discrete LEDs, and surface-mounted device (SMD) panels. Conventional panels are the more common of the two, especially for large outdoor display screens. In this type of LED panel, clusters of red, green, and blue LEDs are grouped together to form numerous square-shaped pixels.

2.What is pitch:

Pitch, measured in millimeters, is the distance between pixels on LED Display, which determines the pixel density. Which pixel density to choose depends on the distance of the viewer from the digital canvas. The closer the viewer to the canvas, the closer the spaces between pixels for optimum viewing. When choosing an LED Display, you need to determine your optimum viewing distance. Your optimum viewing distance is the distance from which you can no longer distinguish individual pixels, but start to see a uniform representation of your content.

3.What is COB

COB stands for "Chip On Board", it is a method of assembly that involves directly mounting an array of diodes on a single substrate or printed circuit board. This design requires only one circuit and two contacts, regardless of the number of diodes used. COB LEDs are categorized as front-mounted chip, flip chip, and semi-flip chip. By breaking through limitation of chips array to achieve pixel pitch below PH0.Xmm, COB technology has been one of the most cutting-edge LED technologies in the LED industry. And it is accelerating the breakthrough process to reach the future of LED displays - Micro LED.