Zhonghao Photoelectric General Manager - Wang Mengyuan
Zhonghao Optoelectronics Co., Ltd. specializes in R&D, production, sales and technical services of ZnO chips (the world's first industrialized independent intellectual property products) and high color rendering integrated light source modules (COB) in the upstream and middle reaches of the LED industry chain. It is mainly engaged in LED production bases at home and abroad, and exported to Europe, America, Australia and other regions. It has independent intellectual property rights and copyrights and patents of more than 40 items. The annual production capacity is 20 million COB light sources, and it is still expanding.
"For COB, due to the high power integration, it is necessary to consider the efficiency degradation caused by the Droop and Waveguide effects of the chip itself. The chip structure is the key to improving efficiency." Wang Mengyuan mentioned.
At the same time, in solving the problem of lateral light intensity loss and improving axial light output, Wang Mengyuan pointed out that the chip structure design can adopt ZnO transparent conductive film. It has the following two characteristics: First, the use of higher transmittance and anti-reflection film principle to optimize the thickness to increase the maximum transmittance of a specific wavelength; Second, the controllable periodic surface nano-columnar structure can achieve higher The light extraction efficiency greatly increases the axial light ratio.
"LED lighting package form, whether it is from single-tube package to system integration, whether it is high-power or low-power chip devices, will eventually embark on the road of integration." Wang Mengyuan finally mentioned.
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