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Toshiba 1991, and U.S. companies for the development of HP orange InGaA1P 620nm high brightness LED, 1992 年 InGaA1p590nm yellow super bright LED practical. In the same year, Toshiba developed InGaA1P 573nm yellow-green high brightness LED, normal intensity of 2cd. 1994 Nichia Corporation for the development of InGaN 450nm Blue (green) color high brightness LED. Thus, the color display three primary colors needed to red, green, blue and orange, and yellow colors of the LED have reached the candela luminous intensity level to achieve the high brightness of, full-color, thus enabling full-color outdoor LED Show a reality. Outdoor full color LED electronic display uses a super bright light-emitting materials (UHB), the luminous intensity at or above 100mcd (Candela). High brightness InGaN LED A1GaInP and Development progressed very rapidly and has now reached conventional materials GaA1As, GaAsP, GaP impossible to achieve levels of performance.
P16 outdoor full color LED electronic display ①
