LED package module
An LED package module according to an aspect of the invention may include: a substrate having predetermined electrodes thereon; a plurality of LED chips mounted onto the substrate, separated from each other at predetermined intervals, and electrically connected to the electrodes; a first color resin portion molded around at least one of the plurality of LED chips; a second color resin portion molded around all of the LED chips except for the LED chip around which the first color resin portion is molded, and having a different color from the first color resin portion; and a third color resin portion encompassing both the first color resin portion and the second color resin portion and having a different color from the first color resin portion and the second color resin portion. Accordingly, a reduction in luminous efficiency of an LED caused by yellowing is prevented to thereby increase luminous efficiency and achieve a reduction in size.
1. An LED package module comprising:
a substrate having predetermined electrodes thereon;
a plurality of LED chips mounted onto the substrate, separated from each other at predetermined intervals, and electrically connected to the electrodes;
a first color resin portion molded around at least one of the plurality of LED chips;
a second color resin portion molded around all of the LED chips except for the LED chip around which the first color resin portion is molded, and having a different color from the first color resin portion; and
a third color resin portion encompassing both the first color resin portion and the second color resin portion and having a different color from the first color resin portion and the second color resin portion.
2. The LED package module of claim 1 , wherein the first color resin portion is a red resin portion including a red phosphor, the second color resin portion is a green resin portion including a green phosphor, and the third color resin portion is a blue resin portion including a blue phosphor.
3. The LED package module of claim 2 , wherein each of the red resin portion and the green resin portion is molded around one LED chip on the substrate and is substantially in the form of a dome, and the blue resin portion is molded around both the red resin portion and the green resin portion and is substantially in the form of a dome.
4. The LED package module of claim 2 , further comprising a body including a first layer provided on the substrate and receiving the plurality of LED chips, the red resin portion, and the green resin portion, and a second layer provided on the first layer and receiving the blue resin portion encompassing the red resin portion and the green resin portion.
5. The LED package module of claim 4 , wherein the body comprises:
a plurality of cavities provided in the first layer, receiving the plurality of separated LED chips, and filled with the red resin portion and the green resin portion; and
an opening provided in the second layer and filled with the blue resin portion to encompass both the red resin portion and the green resin portion.
6. The LED package module of claim 2 , wherein a plurality of cavities are provided on the substrate, separately receive the plurality of LED chips, and are separately filled with the red resin portion and the green resin portion, and an opening is formed above the cavities and filled with the blue resin portion to encompass the red resin portion and the green resin portion.
7. The LED package module of claim 3 , wherein the plurality of LED chips are inclined at predetermined angles so that central lines of optical paths of the plurality of LED chips cross each other.
8. The LED package module of claim 5 , wherein a bottom surface of each of the plurality of cavities to be mounted with the separated LED chips is inclined at a predetermined angle to form an inclined surface so that central lines of optical paths of the plurality of LED chips cross each other.
9. The LED package module of claim 6 , wherein a bottom surface of each of the plurality of cavities to be mounted with the separated LED chips is inclined at a predetermined angle to form an inclined surface so that central lines of optical paths of the plurality of LED chips cross each other.