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It is well known that phosphor coating structure plays an important role in the packaging of phosphor converted white light-emitting diodes. In order to further improve the uniformity of the angle-dependent correlated color temperature (CCT), we make a reasonable optimization for self-adaptive phosphor coating and propose a method that combined with conventional dispensing layer to optimize self-adaptive...
In this paper, we have demonstrated a self-adaptive remote phosphor coating method in pc-white LED with vertical chips. With this method, the phosphor layer is separated from LED chip at a distance, so that the extraction efficiency of blue light is enhanced, and the luminous efficiency is increased about 16%, compared with the conventional phosphor coating. With the self-adaptive remote phosphor...
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