Topic: large led outdoor displays

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...