U.S. QD Vision once again developed a high brightness red LED

It is reported that the United States QD Vision quantum efficiency (EQEs:external quantum efficiencies) for more than 7% of the quantum dots developed a red LED, brightness of more than 20 thousand 5000cd/m2. The company introduced, external quantum efficiency in the last 18 months increased by a factor of 2, luminous stability increased by a factor of 1.

The development of the color of the red CIE chromaticity diagram (x=0.68, y=0.32), said the brightness of 1000 ~ 10000cd/m2 current luminous efficiency of 3 ~ 4cd/A. When the brightness is maintained above 100cd/m2, the luminous life is up to hundreds of thousands of hours. The peak brightness of yellow LED is above 40 thousand 1000cd/m2, and the peak current luminous efficiency is 13cd/A when the brightness is 1500cd/m2, and the luminous efficiency is 14lm/W when the brightness is 300cd/m2. Chromaticity CIE chromaticity diagram (x=0.58, y=0.42). No Cd LED can ensure that the effluent quantum efficiency of more than 3%. Suitable for lighting and display.

QD Vision is a venture enterprise founded in 2005 by the Massachusetts Institute of Technology (MIT). The company uses quantum dot LED technology known as the "Quantum Light", the use of inorganic quantum dots of light emitting materials, to solve the organic EL owned - luminous life issues. The organic material is adopted outside the luminous body, thereby making up the defects of the inorganic LED and the organic EL, improving the color performance, improving the luminous efficiency and reducing the cost.