Source: https://patents.google.com/patent/JP5379634B2/en
Timestamp: 2020-01-24 13:25:34
Document Index: 564929580

Matched Legal Cases: ['art 41', 'art 43', 'art 41', 'art 42', 'art 41', 'art 42', 'art 43', 'art 41', 'art 42', 'art 43']

JP5379634B2 - LED package module - Google Patents
LED package module Download PDF
JP5379634B2
JP5379634B2 JP2009236411A JP2009236411A JP5379634B2 JP 5379634 B2 JP5379634 B2 JP 5379634B2 JP 2009236411 A JP2009236411 A JP 2009236411A JP 2009236411 A JP2009236411 A JP 2009236411A JP 5379634 B2 JP5379634 B2 JP 5379634B2
JP2009236411A
JP2010098313A (en
錫 浩 鄭
學 煥 金
永 鎭 李
2008-10-15 Priority to KR1020080101265A priority Critical patent/KR100982994B1/en
2008-10-15 Priority to KR10-2008-0101265 priority
2009-10-13 Application filed by 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． filed Critical 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ．
2010-04-30 Publication of JP2010098313A publication Critical patent/JP2010098313A/en
2013-12-25 Publication of JP5379634B2 publication Critical patent/JP5379634B2/en
238000004383 yellowing Methods 0 abstract 1
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.
The present invention relates to an LED package module, and more particularly to an LED package module for illumination used in illumination components and devices.
In general, in the case of an LED (Light Emitting Diode) package module for illumination, the LED module is composed of a combination of an LED chip and a phosphor, a package for mounting a resin, and a silicon lens. The function of the optical system of such an LED package maintains stable light output at the highest level, protects the light source element, and can ensure reliability even when used for a long time in various environments. Have a role.
Recently, applications and demands for various uses of lighting, landscape lighting, and other functional lighting are rapidly increasing, and there is a tendency that demands for higher output are also increasing. In addition, for various applications, the trend of downsizing and slimming is inevitable due to the convenience and practicality of design. Therefore, the heat radiation design of the package and the design problem of the instrument are important issues.
As a measure related to heat dissipation, the systems that are mainly researched and developed are about metal packages and ceramic packages, and it can be said that the structure of COB (Chip On Board) method tends to be adopted for compact instrumental design. . These systems can be said to be very advantageous optical elements in terms of downsizing and heat dissipation design compared to existing plastic molding and lead frame package systems.
However, in the case of an illumination package module using a UV (Ultra Violet) LED, there is a problem that a plastic part exposed to ultraviolet rays for a long time causes a yellowing phenomenon, resulting in a decrease in light efficiency. .
The present invention provides an LED package module that prevents a reduction in light efficiency of an LED due to a yellowing phenomenon or the like, thereby improving light efficiency and reducing the size.
An LED package module according to the present invention includes a substrate on which predetermined electrodes are formed, a plurality of LED chips mounted on the substrate at predetermined intervals and electrically connected to the electrodes, and the plurality of LED chips. Molding a first color resin portion molded with at least one LED chip of the LED chips and an LED chip excluding the LED chip molded in the first color resin portion among the plurality of LED chips, A second color resin portion having a color different from the one color resin portion, and the first color resin portion and the second color resin portion are formed so as to cover all of the first color resin portion and the second color resin portion. a look-containing and third color resin unit, a with different colors, the electrode is characterized by a plurality of via electrodes that are formed through the substrate.
The first color resin portion is a red resin portion containing a red fluorescent material, the second color resin portion is a green resin portion containing a green fluorescent material, and the third color resin portion contains a blue fluorescent material. A blue resin portion is preferred.
Further, the red resin portion and the green resin portion are formed in a substantially dome shape by molding one LED chip on the substrate, respectively, and the blue resin portion is formed of the red resin portion and the green resin portion. It is preferable that all are molded and formed into a substantially dome shape.
A plurality of LED chips installed on the substrate; a first layer accommodating the red resin portion and the green resin portion; and the red resin portion and the green resin portion disposed on the first layer. It is preferable to further include a fuselage including a second layer that accommodates the blue resin portion formed to cover the surface.
In addition, the body is provided in the first layer, the plurality of LED chips are accommodated, and the plurality of cavities are provided so as to be filled with the red resin portion and the green resin portion, respectively, It is preferable to include an opening portion provided in two layers and filled with the blue resin portion so as to cover all the red resin portion and the green resin portion.
Preferably, the plurality of cavities are provided on the substrate so as to accommodate the plurality of LED chips, respectively, and are filled with the red resin portion and the green resin portion, respectively, and the plurality of cavities. It is preferable to include an opening filled with the blue resin portion so as to open and cover the red resin portion and the green resin portion.
In addition, it is preferable that the plurality of LED chips are mounted at a predetermined angle so that the center lines of the light paths of the plurality of LED chips intersect each other.
In addition, the plurality of cavities are formed with inclined surfaces that incline the bottom surfaces of the plurality of cavities on which the LED chips are mounted at a predetermined angle so that the center lines of the light paths of the plurality of LED chips intersect each other. It is preferable.
The LED package module of the present invention has an effect of preventing a decrease in the light efficiency of the LED due to a yellowing phenomenon or the like, thereby improving the light efficiency and reducing the size.
1 is a schematic cross-sectional view of an LED package module according to an embodiment of the present invention. 2 is a schematic plan view of the LED package module illustrated in FIG. 1. 6 is a schematic cross-sectional view of an LED package module according to another embodiment of the present invention. 6 is a schematic cross-sectional view of an LED package module according to another embodiment of the present invention.
Embodiments relating to the LED package module according to the present invention will be described more specifically with reference to the drawings.
First, an LED package module according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a schematic cross-sectional view of an LED package module according to an embodiment of the present invention, and FIG. 2 is a schematic plan view of the LED package module shown in FIG.
As shown in FIGS. 1 and 2, the LED package module according to an embodiment of the present invention includes a substrate 10, a body 20, and a plurality of housings mounted in the body 20 and bonded to each other. LED chips L1 and L2 are included.
The substrate 10 is a ceramic substrate, and an electrode pattern 12 is formed for electrical connection with other components. Via electrodes 11 are electrically connected to the LED chips L1 and L2 mounted thereon. Is provided.
A heat radiating plate 15 is provided for radiating heat from the LED chips L1 and L2, and a via 14 is formed so as to penetrate the substrate 10 in order to thermally connect the heat radiating plate 15 and the LED chips L1 and L2. Is provided.
The fuselage 20 is composed of two layers (Layer), and includes a lower first layer 21 and an upper second layer 22. The first layer 21 and the second layer 22 are separately manufactured and combined. Or may be manufactured integrally.
The first layer 21 is provided with a plurality of cavities 31 and 32 for accommodating a plurality of LED chips L1 and L2, respectively.
The cavities 31 and 32 have a reflection surface at a predetermined angle, and the via 14 and the via electrode 11 are exposed on the bottom surface.
The via 14 is thermally connected to the LED chip (L1 or L2), and the via electrode 11 is connected to the LED chip (L1 or L2) by bonding by wire w or flip chip bonding (Flip Chip Bonding).
Each of the cavities 31 and 32 is filled with a red resin portion 41 containing a red fluorescent material or a green resin portion 42 containing a green fluorescent material.
At this time, it is preferable that the height at which the red resin portion 41 and the green resin portion 42 are filled does not exceed the boundary between the first layer 21 and the second layer 22.
The second layer 22 has an opening 33. However, as shown in FIGS. 1 and 2, the opening 33 can expose all the cavities 31 and 32 formed in the first layer 21. It is preferable to form it in such a size as possible.
The opening 33 is filled with a blue resin portion 43 containing a blue fluorescent material.
That is, the blue resin portion 43 is filled in the opening 33 and is formed so as to cover the entire red resin portion 41 and green resin portion 42 filled in the cavities 31 and 32.
That is, the red resin portion 41 and the green resin portion 42 are arranged in parallel to the first layer 21, and the blue resin portion 43 is arranged in the opening 33 of the second layer 22 provided thereon.
The light generated from the LED chip L1 molded in the red resin portion 41 generates red light while supplying energy to the red fluorescent material included in the red resin portion 41, and the LED chip molded in the green resin portion 42. The light generated from L2 generates green light while supplying energy to the green fluorescent material contained in the green resin portion 42.
At this time, the red light and the green light travel to the blue resin portion 43 and the red light and the green light are mixed with each other in the blue resin portion 43, and are affected by the blue fluorescent material in the blue resin portion 43 to become white light. Is emitted.
By arranging the red resin portion 41 and the green resin portion 42 in the first layer 21 and the blue resin portion 43 in the second layer 22 on the first layer 21, the light finally passes through the blue resin portion 43. As a result, white light having high luminance can be generated.
In the embodiment illustrated in FIGS. 1 and 2, a case where the red resin portion 41 and the green resin portion 42 are arranged in the first layer 21 and the blue resin portion 43 is arranged in the second layer 22 above the first layer 21 is shown. However, the present invention is not necessarily limited to this, and colors can be arbitrarily arranged.
However, when different colors are arranged, white light is not always generated, and light of other colors may be generated.
Next, an LED package module according to another embodiment of the present invention will be described with reference to FIG.
The body 20 of the LED package module according to the embodiment illustrated in FIG. 3 includes a first layer 21 and a second layer 22 in the same manner as the body of the LED package module according to the embodiment illustrated in FIGS. The first layer 21 includes a plurality of cavities 31 and 32, and the second layer 22 includes an opening 33 having a size capable of exposing all the cavities 31 and 32.
Here, the first layer 21 and the second layer 22 may be separately manufactured and combined, or may be manufactured integrally with the LED package module according to the embodiment illustrated in FIG. is there.
The cavities 31 and 32 formed in the first layer 21 illustrated in FIG. 3 include inclined surfaces 31a and 32a formed so that the respective bottom surfaces are inclined at a predetermined angle.
That is, in the embodiment shown in FIG. 3, the bottom surfaces of the cavities 31 and 32 are inclined so that the center line of the light path of the first LED chip L1 and the center line of the light path of the second LED chip L2 intersect. The inclined surfaces 31a and 32a are used.
As shown in FIG. 3, the inclined surfaces 31a and 32a are formed on the bottom surfaces of the cavities 31 and 32, and the LED chips L1 and L2 are mounted so as to be inclined in the direction of each other. Mixing can be performed effectively and good quality white light can be generated.
FIG. 3 shows a case in which two LED chips are mounted so as to be inclined at a predetermined angle in each direction in each cavity. However, the present invention is not limited to this, and even when two or more LED chips are mounted, The LED chips can be inclined at a predetermined angle with respect to each other to prevent a color separation phenomenon and to perform color mixing more effectively.
In the LED package module of the present embodiment, all other parts except for the configuration related to the inclined surface formed in each cavity are substantially the same as those of the LED package module according to the embodiment shown in FIGS. Since they are the same, a specific description is omitted. Further, in the embodiment shown in FIGS. 1 and 2, it is possible to mount the two LED chips so as to be inclined at a predetermined angle with respect to each other as described in this embodiment.
Next, an LED package module according to still another embodiment of the present invention will be described with reference to FIG.
The LED package module according to the embodiment shown in FIG. 4 is basically characterized in that it has a configuration without a body.
That is, a plurality of LED chips L1 and L2 are mounted on the substrate 10 while being spaced apart from each other by a predetermined distance, and different color resins are provided on the LED chips L1 and L2, respectively.
As shown in FIG. 4, the LED package module according to another embodiment of the present invention has a dome shape so that the first LED chip L1 is mounted on the substrate 10 and the first LED chip L1 is molded. The red resin part 41 is formed by this.
Then, the second LED chip L2 is mounted with a predetermined distance from the first LED chip L1, and the green resin portion 42 is formed in a dome shape so that the second LED chip L2 is molded.
Then, the blue resin part 43 is formed in a dome shape so as to cover the whole so that the red resin part 41 and the green resin part 42 are all molded.
That is, the red resin part 41 and the green resin part 42 are arranged in parallel on the substrate 10, and the blue resin part 43 is arranged so as to cover the whole.
At this time, the red light and the green light travel to the blue resin portion 43, the red light and the green light are mixed in the blue resin portion 43, and are affected by the blue fluorescent material in the blue resin portion 43 to become white light. Is emitted.
Here, as in the embodiment shown in FIG. 1, the arrangement of the red resin portion, the green resin portion, and the blue resin portion can be different, but in this case, the light generated from the LED package module The color of the light may be a light of another color that is not white light.
The LED package module according to the embodiment shown in FIG. 4 is the same as that shown in FIG. 1 except for the remaining portions except the above-described features, that is, the portions related to the substrate 10 and the via electrodes formed on the substrate 10. Since it is substantially the same as the LED package module according to the embodiment, the specific description is omitted. Further, as described in the embodiment shown in FIG. 3, it is possible to mount the two LED chips so as to be inclined at a predetermined angle in the direction of each other.
DESCRIPTION OF SYMBOLS 10 Board | substrate 20 Body 11 Via electrode 12 Electrode pattern 14 Via 15 Heat sink 21 1st layer 22 2nd layer 31, 32 Cavity 33 Opening part 41 Red resin part 42 Green resin part 43 Blue resin part L1, L2 LED chip
A substrate on which a predetermined electrode is formed;
A plurality of LED chips mounted on the substrate at predetermined intervals and electrically connected to the electrodes;
A first color resin portion molded with at least one LED chip of the plurality of LED chips;
Molding an LED chip excluding the LED chip molded in the first color resin portion among the plurality of LED chips, a second color resin portion having a color different from the first color resin portion,
Is formed so as to cover all the first color resin portion and the second color resin portion, seen including a third color resin portion having a color different from the first color resin portion and the second color resin portion,
The LED package module, wherein the electrodes are a plurality of via electrodes formed through the substrate .
The first color resin portion is a red resin portion including a red fluorescent material, the second color resin portion is a green resin portion including a green fluorescent material, and the third color resin portion is a blue resin including a blue fluorescent material. The LED package module according to claim 1, wherein the LED package module is a portion.
The red resin portion and the green resin portion are formed in a substantially dome shape by molding one LED chip on the substrate, respectively, and the blue resin portion is a mold of the red resin portion and the green resin portion. The LED package module according to claim 2, wherein the LED package module is substantially formed in a dome shape.
A first layer installed on the substrate and accommodating the plurality of LED chips, the red resin portion and the green resin portion, and installed on the first layer to cover the red resin portion and the green resin portion. The LED package module according to claim 2, further comprising a body including a second layer that accommodates the blue resin portion formed as described above.
A plurality of cavities provided in the first layer, each of the plurality of LED chips being accommodated and filled with the red resin portion and the green resin portion, respectively;
5. The LED package module according to claim 4, further comprising an opening provided in the second layer and filled with the blue resin portion so as to cover all of the red resin portion and the green resin portion.
A plurality of cavities installed on the substrate to accommodate the plurality of LED chips, respectively, and filled with the red resin portion and the green resin portion, respectively, and opened on the plurality of cavities; The LED package module according to claim 2, further comprising an opening filled with the blue resin portion so as to cover all of the red resin portion and the green resin portion.
The plurality of LED chips are:
4. The LED package module according to claim 1, wherein the plurality of LED chips are mounted at a predetermined angle so that the center lines of the light paths intersect each other. 5. .
The plurality of cavities are:
An inclined surface that inclines the bottom surfaces of the plurality of cavities on which the LED chips are mounted at a predetermined angle is formed so that the center lines of the light paths of the plurality of LED chips intersect each other. The LED package module according to claim 5 or 6.
A third color resin portion formed so as to cover all of the first color resin portion and the second color resin portion,
The LED package module, wherein the electrodes are a plurality of via electrodes formed through the substrate.
JP2009236411A 2008-10-15 2009-10-13 LED package module Active JP5379634B2 (en)
KR1020080101265A KR100982994B1 (en) 2008-10-15 2008-10-15 Led package module
KR10-2008-0101265 2008-10-15
JP2010098313A JP2010098313A (en) 2010-04-30
JP5379634B2 true JP5379634B2 (en) 2013-12-25
ID=42098074
JP2009236411A Active JP5379634B2 (en) 2008-10-15 2009-10-13 LED package module
US (2) US8183583B2 (en)
JP (1) JP5379634B2 (en)
KR (1) KR100982994B1 (en)
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2009-10-01 US US12/571,754 patent/US8183583B2/en active Active
2009-10-13 JP JP2009236411A patent/JP5379634B2/en active Active
2012-02-24 US US13/404,924 patent/US8278671B2/en active Active
US20100090231A1 (en) 2010-04-15
US8278671B2 (en) 2012-10-02
US20120211780A1 (en) 2012-08-23
KR100982994B1 (en) 2010-09-17
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US9548287B2 (en) 2017-01-17 LED module having LED chips as light source
US9165912B2 (en) 2015-10-20 Light emitting device package
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