F. Chau & Associates, LLC
Method of manufacturing white light emitting device (LED) and apparatus measuring phosphor film
A method of manufacturing a white light emitting device includes dividing a phosphor sheet into phosphor film units to be applied to individual light emitting diode (LED) devices, measuring light conversion characteristics of the respective phosphor film units, classifying the phosphor film units of the phosphor sheet into a plurality of groups according to measurement results of the light conversion characteristics and combining the phosphor film units classified into the plurality of groups and an LED device having predetermined light characteristics so as to obtain target color characteristics.
Samsung Electronics Co., Ltd
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Seul Gee Sang Hoon Min Jung Chul Soo Jong Rak Chang Bun
Lee Ahn Park Yoon Sohn Yoon