Light-emitting device having an interlayer of a polysiloxane mixture
Formation of an interlayer is realized for a light-emitting device, the interlayer having properties of anticorrosion and adhesion to a silicone layer, thus preventing incidence of cracking during a baking process. The light-emitting device includes a light-emitting element covered with the silicone layer, and the interlayer is provided between the light-emitting element and the silicone layer. The interlayer is formed of a mixture of a tri-functional polysiloxane and a tetra-functional polysiloxane.
1. A light-emitting device in which a light-emitting element is covered with a silicone layer, the light-emitting device comprising an interlayer configured to be between the light-emitting element and the silicone layer, wherein
the interlayer is formed of a mixture of a tri-functional polysiloxane and a tetra-functional polysiloxane.
2. A light-emitting device according to claim 1 , wherein the content of the tri-functional polysiloxane in the mixture is 10% by weight to 90% by weight.
3. A light-emitting device according to claim 2 , wherein the content of the tri-functional polysiloxane in the mixture is 35% by weight to 70% by weight.
4. A light-emitting device according to claim 1 , wherein the interlayer includes fine inorganic particles.
5. A light-emitting device according to claim 4 , wherein the fine inorganic particles are of ZrO 2 , SiO 2 , ZnO, Al 2 O 3 or TiO 2 .
6. A light-emitting device according to claim 1 , wherein the interlayer includes a phosphor.
7. A light-emitting device according to claim 2 , wherein the interlayer includes fine inorganic particles.
8. A light-emitting device according to claim 3 , wherein the interlayer includes fine inorganic particles.
9. A light-emitting device according to claim 2 , wherein the interlayer includes a phosphor.
10. A light-emitting device according to claim 3 , wherein the interlayer includes a phosphor.