Light source unit and device using same
View Patent ↗Provided is a light source unit in which locating components are mounted on a substrate together with LEDs forming a light emitting portion, and with this, the light source unit can be more easily replaced, and the number of components can be reduced.
1. A light source unit, comprising:
a substrate;
a light emitting portion mounted on a surface of the substrate and to be used as a light source; and
a locating component formed on the substrate and to be used for locating the light emitting portion;
wherein the light emitting portion comprises a plurality of LEDs arranged in a line at intervals from each other in a longitudinal direction of the substrate, and
wherein the locating component comprises a plurality of locating fittings arranged in the same line as the line formed of the plurality of LEDs, each of the plurality of locating fittings has a substantially U-shaped cross-section.
2. A light source unit according to claim 1 , further comprising a reflective member for reflecting light from the light emitting portion, the reflective member being provided on the substrate.
3. A light source unit according to claim 1 , wherein the plurality of locating fittings are respectively arranged at both ends of the plurality of LEDs arranged in the line.
4. A light source unit according to claim 3 , wherein the plurality of locating fittings are respectively provided between the plurality of LEDs arranged in the line.
5. A light source unit according to claim 1 , wherein each of the plurality of locating fittings having the substantially U-shaped cross-section comprises:
a first part which is mounted on the substrate;
a second part which extends perpendicularly from the first part to be mounted; and
a third part which is coupled to the second part and longer than the first part.
6. A light source unit according to claim 5 , wherein the second part of each of the plurality of locating fittings has a height in accordance with a thickness of a light guide member for guiding light from the plurality of LEDs.
7. A light source unit according to claim 5 , wherein the third part of each of the plurality of locating fittings comprises:
a flat portion parallel to the surface of the substrate; and
inclined portions continuous with the flat portion toward both sides in the longitudinal direction of the substrate, the inclined portions each being inclined in a direction of being separated from the surface of the substrate.
8. An illumination device, comprising the light source unit according to claim 1 used as a light source for the illumination device.
9. An illumination device according to claim 8 , wherein the light source unit is replaceable.
10. A light source unit according to claim 1 ,
wherein the light emitting portion comprises a plurality of LEDs arranged in a line at intervals from each other in a longitudinal direction of the substrate, and
wherein the locating component is fitted integrally with each of the plurality of LEDs.
11. A light source unit according to claim 10 , wherein the locating component comprises a protruding portion extending from an upper surface of each of the plurality of LEDs beyond a light emitting surface of each of the plurality of LEDs.
12. A light source unit according to claim 11 , wherein the protruding portion comprises:
a flat portion parallel to the surface of the substrate; and
inclined portions continuous with the flat portion toward both sides in the longitudinal direction of the substrate, the inclined portions each being inclined in a direction of being separated from the surface of the substrate.
13. A liquid crystal display device, comprising the light source unit according to claim 1 used as a light source for the liquid crystal display device.
14. A liquid crystal display device according to claim 13 , wherein the light source unit is replaceable.