Light-emitting apparatus package, light-emitting apparatus, backlight apparatus, and display apparatus
A light-emitting apparatus package of the present invention includes (i) an electrically insulated ceramic substrate, (ii) a first concave section formed in the direction of thickness of the ceramic substrate so as to form a light exit aperture in a surface of the ceramic substrate, (iii) a second concave section formed within the first concave section in the further direction of thickness of the ceramic substrate so that one or more light-emitting devices are provided therein, (iv) a wiring pattern for supplying electricity, which is provided in the first concave section, and (v) a metalized layer having light-reflectivity, which is (a) provided between the light-emitting device and the surface of the second concave section of the substrate, and (b) electrically insulated from the wiring pattern. On the account of this, the light-emitting apparatus package in which heat is excellently discharged and light is efficiently utilized and a light-emitting apparatus in which the light-emitting apparatus package is used can be obtained.
1. A light-emitting apparatus, comprising:
a light-emitting device;
a ceramic substrate;
a first concave section formed in a surface of the ceramic substrate;
a second concave section, provided in the first concave section, and further recessed in the thickness direction of the ceramic substrate, the second concave section providing an area for mounting the light-emitting device;
a wiring pattern provided in the first concave section, the wiring pattern for supplying electricity to the light-emitting device, and
a metalized layer, provided on and in direct contact with at least a part of the bottom surface and a side surface of the second concave section in such a manner that the metalized layer is electrically insulated from the wiring pattern, the metalized layer having a light reflective property,
the wiring pattern provided in the first concave section being provided not to reach an aperture section of the second concave section.
2. The light-emitting apparatus as set forth in claim 1 , wherein:
the ceramic substrate contains aluminum nitride.