Topic: large led outdoor displays

In recent years, while the small-pitch led video screen panels display products have grown rapidly, the small-pitch LED display technology is also making continuous progress. Recently, a new type of packaging——COB (chip-on-board) packaging products has gradually become a hot packaging situation due to its unique process and product characteristics... COB (Chip On Board), that is, packaging RGB chips on a circuit board, is a new full-color LED technology developed based on the plane technology...

1. Brightness and viewing angle The brightness of the display mainly depends on the luminous intensity of the LED and the density of the LED. In recent years, new technologies in LED substrate, epitaxy, chip and packaging have emerged in an endless stream, especially the stability and maturity of indium tin oxide (ITO) current spreading layer technology and process, which has greatly improved the luminous intensity of LED. At present, when the horizontal viewing angle is 110 degrees and the v...