SEMICONDUCTOR LIGHT EMITTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a light emitting device which emits light over the whole body of a sealing material without a light source recognized as a dot-like luminescent spot from outside by effectively diffusing light emitted from a light-emitting diode chip.

SOLUTION: The light emitting device 10 wherein the light-emitting diode chip 3 is mounted on a wiring board 1 is constituted of a partition wall 4 which is erected on the wiring board 1 so as to surround the light-emitting diode chip 3 and is formed of silicone resin mixed with needle-like silicon oxide powder, and the sealing material 7 which is so disposed as to fill up a space surrounded by the partition wall 4 and is formed of silicone resin mixed with pulverized silicon oxide powder. The pulverized powder in the sealing material is mixed into silicone resin at a density not less than 3 wt.% nor more than 5 wt.% with respect to 100 wt.% of the silicone resin.

COPYRIGHT: (C)2009,JPO&INPIT