KR101001786B1 - Light source package and illumination device comprising the same - Google Patents
Light source package and illumination device comprising the same Download PDFInfo
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- KR101001786B1 KR101001786B1 KR20070141755A KR20070141755A KR101001786B1 KR 101001786 B1 KR101001786 B1 KR 101001786B1 KR 20070141755 A KR20070141755 A KR 20070141755A KR 20070141755 A KR20070141755 A KR 20070141755A KR 101001786 B1 KR101001786 B1 KR 101001786B1
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- light source
- source package
- emitting diode
- package
- light emitting
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Abstract
A light source package and a lighting device having the same are disclosed. The light source package includes a point light source; And an insulating layer formed to be spaced apart from the point light source by the vacuum layer and blocking heat emitted from the point light source.
Light source package, point light source, vacuum layer, insulating film, color conversion film, white light
Description
The present invention relates to a light source package and a lighting device having the same.
The lighting device is a general term for a device that emits light by using electrical energy provided from the outside. The lighting device usually uses an incandescent bulb or a fluorescent lamp as its light source, and is utilized as a device for directly illuminating an object at night or indoors.
However, incandescent bulbs or fluorescent lamps have a disadvantage in that they need to be replaced frequently because of their large power consumption and short lifespan. In particular, fluorescent lamps use mercury, a carcinogen, which may be a target of regulation, and flickering may cause vision loss.
Recently, a lighting apparatus using a light emitting diode (LED) as a light source has been studied. The light emitting diode is a kind of point light source, and may be referred to as semi-permanent because it has a lifetime of about 100,000 hours. In addition, since the light emitting diode uses light having a longer wavelength than ultraviolet light, the light emitting diode has an advantage of being harmless to the human body.
As described above, the lighting device according to the background art is used as a direct lighting device, but its application range is expanding due to the development of information technology. For example, the lighting device may be manufactured in the form of a backlight unit and then mounted in a liquid crystal display (LCD) that displays an image. In the field of the liquid crystal display device, due to environmental and life issues, Research is underway to replace light sources with light emitting diodes.
On the other hand, in order to obtain white light using the above-described light emitting diodes, red, green, and blue light emitting diodes should be installed in close proximity, and red, green, and blue light emitted from them should be diffused and mixed. This is because each light emitting diode has a monochromatic peak wavelength.
However, when white light is to be realized through the above configuration, it may be difficult to obtain desired white light due to irregular hue or brightness of each light emitting diode.
Recently, research on a technique of implementing white light using a blue light emitting diode has been conducted. Specifically, a light source package is manufactured by inserting a phosphor for converting blue light emitted from the blue light emitting diode into white light into a molding part encapsulating the blue light emitting diode to block the blue light emitting diode from an air layer.
However, the above-described light source package has a problem that the phosphor may be damaged due to additional heat emitted from the blue light emitting diode.
Accordingly, the problem to be solved by the present invention is to provide a light source package and a lighting device having the same that can prevent the damage of the phosphor due to the heat emitted from the point light source.
Further objects to be solved by the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description. Could be.
The light source package according to an embodiment of the present invention for achieving the object to be solved is a point light source; And an insulating layer formed to be spaced apart from the point light source by a vacuum layer and blocking heat emitted from the point light source.
On the other hand, the light source package according to an embodiment of the present invention for achieving the problem to be solved is a blue light emitting diode; And an insulating layer formed to be spaced apart from the blue light emitting diode by a vacuum layer and blocking heat emitted from the blue light emitting diode.
On the other hand, the illumination device according to an embodiment of the present invention for achieving the problem to be solved is formed to be spaced apart from the point light source by a point light source and a vacuum layer includes an insulating film for blocking heat emitted from the point light source. A light source package; And an optical member for diffusing or condensing the light emitted from the light source package.
On the other hand, the illumination device according to an embodiment of the present invention for achieving the problem to be solved is formed to be spaced apart from the blue light emitting diode by a blue light emitting diode and a vacuum layer to block the heat emitted from the blue light emitting diode. A light source package including an insulating film; And an optical member for diffusing or condensing the light emitted from the light source package.
Specific details of other embodiments are included in the detailed description and the drawings. Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings.
According to the present invention, damage to the phosphor can be prevented through an insulating film which blocks heat emitted from the point light source. In addition, since the vacuum layer is formed between the point light source and the insulating film, the thermal blocking effect by the insulating film can be maximized. In addition, since it is not necessary to form a molding part encapsulating a point light source due to the vacuum layer, a light source package can be manufactured easily.
Hereinafter, a light source package and a lighting device having the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, like reference numerals refer to like elements throughout the specification.
In the light source package according to an embodiment of the present invention, a blue light emitting diode, which is a kind of point light source, is described as an example of the light source, but the present invention is not limited thereto. That is, the point light source included in the light source package of the present invention may be a light emitting diode other than a blue light emitting diode. In addition, the point light source provided in the light source package of the present invention may not be the above-described light emitting diode form.
1 is a cross-sectional view for schematically explaining the configuration of a light source package according to an embodiment of the present invention.
Referring to FIG. 1, the
The blue
The blue
The
Since the insulating
The insulating
The
The
The
The phosphor 134 may include, for example, a
As the
For example, as the
In addition, SrGa 2 S 4 : Eu 2+ may be used as the
In addition, SrB 4 O 7 : Sm 2+ may be used as the
As described above, in the
As described above, the white light may be realized through the blue
Meanwhile, the blue
2 is a block diagram illustrating a schematic configuration of a driving circuit for driving a light source package according to an embodiment of the present invention.
2, the driving circuit for driving the
The
The
The DC /
On the other hand, Figure 3 is a cross-sectional view for schematically illustrating the configuration of a lighting device having a light source package according to an embodiment of the present invention. In FIG. 3, a lighting device that can be mounted on a liquid crystal display as a lighting device, that is, a backlight unit is illustrated. However, the lighting device of the present invention is not limited thereto. On the other hand, since the light source package is the same as described above, it will be described using the same reference numerals, and redundant description will be omitted, and only the features thereof will be described.
Referring to FIG. 3, the
The
The
The
The
Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can realize that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. I can understand that.
Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.
1 is a cross-sectional view for schematically explaining the configuration of a light source package according to an embodiment of the present invention.
2 is a block diagram illustrating a schematic configuration of a driving circuit for driving a light source package according to an embodiment of the present invention.
3 is a cross-sectional view for schematically illustrating a configuration of a lighting device having a light source package according to an embodiment of the present invention.
{Description of symbols for main parts of the drawing}
110: light source package 120: blue light emitting diode
130: insulating film 140: vacuum layer
150: color conversion film 200: lighting device
220: optical member
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20070141755A KR101001786B1 (en) | 2007-12-31 | 2007-12-31 | Light source package and illumination device comprising the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20070141755A KR101001786B1 (en) | 2007-12-31 | 2007-12-31 | Light source package and illumination device comprising the same |
Publications (2)
Publication Number | Publication Date |
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KR20090073727A KR20090073727A (en) | 2009-07-03 |
KR101001786B1 true KR101001786B1 (en) | 2010-12-15 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR20070141755A KR101001786B1 (en) | 2007-12-31 | 2007-12-31 | Light source package and illumination device comprising the same |
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KR (1) | KR101001786B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101367918B1 (en) * | 2012-09-24 | 2014-02-28 | (주)라이타이저코리아 | Package for light emitting device |
CN111769184B (en) * | 2020-07-31 | 2022-03-15 | 佛山紫熙慧众科技有限公司 | Ultraviolet LED chip protection architecture |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100649704B1 (en) | 2005-09-05 | 2006-11-27 | 삼성전기주식회사 | Light emitting diode package and method for manufacturing the same |
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2007
- 2007-12-31 KR KR20070141755A patent/KR101001786B1/en not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100649704B1 (en) | 2005-09-05 | 2006-11-27 | 삼성전기주식회사 | Light emitting diode package and method for manufacturing the same |
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KR20090073727A (en) | 2009-07-03 |
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