| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light-emitting device manufacturing method which makes it possible to restrict color irregularities depending on view angles and also to reduce material and manufacturing costs. <P>SOLUTION: A light-emitting element is mounted at the bottom of a recessed part of a case. Next, a mask having an opening corresponding to the light-emitting element mounted part is disposed on the top face of the case, and a mixed liquid consisting of phosphor particles dispersed in a volatile solvent is screen-printed to supply the mixed liquid to the periphery of the light-emitting element. After that, the mixed liquid is heated to evaporate the volatile solvent. Since screen printing is used to apply a coating of the mixed liquid to the light-emitting element mounted part, collective application of the mixed liquid is made possible and manufacturing cost is thereby reduced. Furthermore, since the phosphor is closely contacted with the light-emitting element by evaporating the volatile solvent into which phosphor particles have been mixed, a sufficient wavelength conversion rate can be obtained even when the amount of phosphor particles supplied is reduced, which results in reduced material costs. <P>COPYRIGHT: (C)2013,JPO&INPIT |
