LED display luminescence materials several forms

At present the blue due to high brightness and pure green semiconductor wafer manufacturing technology chiefly in Japan, the United States and other minority company hand, cause are expensive. Applied to display LED material has the following kinds of forms:

(1) LED light (or say single lamp)

General by a single LED chips, reflective bowl, cathode metal anodes, metal structure, outsourcing has pervious to light light-gathering power epoxy resin enclosure. Usable one or more (different color) single lamp form a basic pixel, due to high brightness, more for outdoor screen.

(2) of LED dot matrix modules

A chip by several luminous matrix with epoxy encapsulation in plastic crust. Suitable for scanning drive, easy to constitute the ranks high density of screen, more for indoor display screen.

(3) in LED light patch SMDLED) or"

Is LED lamp post weld forms of packaging, can be used in indoor full color led display, may realize the single point maintenance, effectively overcome Mosaic phenomenon.