Light-emitting module, illumination device, display device, and television receiver
An LED module (MJ) wherein among apertures ( 21 A to 21 C) and pins ( 11 A to 11 C) to engage each other, the apertures ( 21 A to 21 C) are formed in a mounting board ( 20 ) and the pins ( 11 A to 11 C) are formed on a lens ( 10 ). The apertures ( 21 A to 21 C) and the pins ( 11 A to 11 C) regulate the directivity direction of the lens ( 10 ) to a specific direction by engaging each other in one kind of manner.
1. A light-emitting module comprising:
a light-emitting element;
a mounting substrate on which the light-emitting element is directly mounted; and
a lens mounted directly on the mounting substrate to cover the light-emitting element and arranged to receive light from the light-emitting element and to output most of the light received from the light-emitting element in a deflected direction; wherein
the lens includes a first restriction portion; and
the mounting substrate includes a second restriction portion which is arranged to engage with the first restriction portion only in a single orientation such that the deflected direction is restricted to only one specific direction.
2. The light-emitting module according to claim 1 , wherein the first restriction portion has a shape that fits into the second restriction portion.
3. The light-emitting module according to claim 1 , wherein
the first restriction portion includes at least one pin; and
the second restriction portion includes at least one hole engaging with the at least one pin.
4. The light-emitting module according to claim 3 , wherein a total number of the at least one pin and a total number of the at least one hole is one.
5. The light-emitting module according to claim 3 , wherein a total number of the at least one pin and a total number of the at least one hole are same as each other and are more than one.
6. An illumination device comprising the light-emitting module according to claim 1 .
7. A display device comprising:
the illumination device according to claim 6 ; and
a display panel that receives light from the illumination device.
8. The display device according to claim 7 , wherein the display panel is a liquid crystal display panel.
9. A television receiver comprising the display device according to claim 7 .
10. The illumination device according to claim 6 , wherein
the light-emitting module includes a plurality of the light-emitting elements and a plurality of the lenses, each of the plurality of the lenses covers at least one of the plurality of light-emitting elements;
the plurality of the lenses includes first lenses outputting light from the plurality of light-emitting elements covered by the first lens in a first deflected direction, and second lenses outputting light from the plurality of the light-emitting element covered by the second lenses in a second deflected direction which is different from the first deflected direction; and
the first restriction portions of the first lenses are different from the first restriction portions of the second lenses to prevent mis-mounting of the plurality of the lenses.
11. The illumination device according to claim 6 , wherein
the light-emitting module includes a plurality of the light-emitting elements and a plurality of the lenses, each of the plurality of the lenses covers at least one of the plurality of the light-emitting elements;
the first restriction portions of each of the plurality of the lenses have a same shape and output light from the plurality of the light-emitting elements respectively covered by each of the plurality of the lenses in a same deflected direction.
12. The light-emitting module according to claim 1 , wherein
the first restriction portion includes at least one first step portion; and
the second restriction portion includes at least one second step portion engaging with the at least one first step portion.
13. The light-emitting module according to claim 12 , wherein
the at least one second step portion is defined by a rivet arranged on the mounting substrate.