CN102162627A - Light-emitting device and illumination device - Google Patents
Light-emitting device and illumination device Download PDFInfo
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- CN102162627A CN102162627A CN2011100378007A CN201110037800A CN102162627A CN 102162627 A CN102162627 A CN 102162627A CN 2011100378007 A CN2011100378007 A CN 2011100378007A CN 201110037800 A CN201110037800 A CN 201110037800A CN 102162627 A CN102162627 A CN 102162627A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
Abstract
The invention relates to a light-emitting device and an illumination device. According to one embodiment, a light-emitting device (1) comprises a substrate (2) on which a plurality of light-emitting elements (3) are arranged and mounted in two lines, and sealing members (4a) and (4b) of two lines each sealing the plurality of light-emitting elements of each line. A distance (B) between the lines of the sealing members is equal to 0.5 times or more. The light-emitting device and the illumination device can inhibit brightness non-uniformity and further diffusion of light with unobvious angle and color difference, thereby uniformly irradiating excellent illuminating light.
Description
Technical field
The present invention relates to a kind of use light emitting diode (Light Emitting Diode, LED) light-emitting device of the light-emitting component of Denging and lighting device.
Background technology
In recent years, use lighting device that a plurality of light emitting diodes are used as light source practicability.This kind lighting device for example is used as the general illumination (general lighting) that is directly installed on installation (surface mounted) type in surface on the indoor ceiling, so-called.
Light emitting diode is installed on the substrate and by containment member and is sealed.As containment member, for example using has the material of sneaking into fluorophor in transparent silicone (silicone) resin etc.
In the case, for example a plurality of light emitting diodes are the arrangement of matrix (matrix) shape ground and are installed on the surface of substrate, and come the whole surface of hermetic sealing substrate with containment member.But if come the whole surface of covered substrate like this with containment member, it is many that the amount of then used containment member will become, and correspondingly, material cost (cost) will uprise.
Therefore, consider that a plurality of light emitting diodes are the arrangement of multiple row ground is installed on the surface of substrate, and seal the method for each row light emitting diode respectively with elongated containment member.If adopt the method, then can reduce the amount of containment member, correspondingly, can suppress the manufacturing cost of lighting device.
But, at this moment, when illumination apparatus is lit a lamp, might between the row of containment member dark-part appear.
Thereby a kind of light-emitting device and lighting device that does not have the luminance deviation that causes because of dark-part so developed in expectation.
This shows that above-mentioned prior art obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of light-emitting device and lighting device of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is to, overcome the defective of existing use light emitting diode as the lighting device existence of light source, and provide a kind of light-emitting device and lighting device of new structure, technical problem to be solved is to make its illumination light that can shine high-quality equably, thereby is suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.For achieving the above object, the 1st technical scheme of the present invention provides a kind of light-emitting device, and it comprises:
A plurality of light-emitting components;
Substrate is the arrangement of multiple row ground described a plurality of light-emitting component is installed; And
The multiple row containment member comes described a plurality of light-emitting components are formed sealing along described row, and
Distance between the row of the described containment member of adjacency is more than 0.5 times and below 2 times of width of described containment member,
The width of described containment member is more than 2.0 times and below 7.8 times of height of sealing member.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.For achieving the above object, according to the described light-emitting device of the 1st technical scheme of the present invention, the 2nd technical scheme of the present invention also comprises:
Intermediate member is disposed between the described row of adjacency and has reflecting surface, and this reflecting surface will the light of outgoing reflexes to the place ahead via the containment member of the described row of sealing.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.For achieving the above object, according to the described light-emitting device of the 1st technical scheme of the present invention, the 3rd technical scheme of the present invention,
Described intermediate member has reflecting surface, and the light that this reflecting surface will the outgoing via the containment member of adjacency reflexes to the place ahead.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.For achieving the above object, according to the described light-emitting device of the 1st technical scheme of the present invention, the 4th technical scheme of the present invention,
Described intermediate member is formed by transparent resin.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.For achieving the above object, according to the described light-emitting device of the 2nd technical scheme of the present invention, the 5th technical scheme of the present invention,
Described intermediate member comprises the diffusant of aluminium oxide or silica etc.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.For achieving the above object, according to the described light-emitting device of the 1st technical scheme of the present invention, the 6th technical scheme of the present invention,
The width of described containment member is 2.0 times～7.8 times of height of sealing member.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.For achieving the above object, the 7th technical scheme of the present invention provides a kind of lighting device, and it comprises:
Device body; And
The described light-emitting device of arbitrary technical scheme is equipped on the described device body in the 1st to the 6th technical scheme.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.For achieving the above object, according to the described lighting device of the 7th technical scheme of the present invention, the 8th technical scheme of the present invention also comprises:
The front surface cover of light diffusing is in the mode of the front surface that covers described light-emitting device and be installed on the described device body.
In sum, light-emitting device of the present invention and lighting device are provided with the front surface cover in lower opening portion, can suppress brightness disproportionation and the unconspicuous light of angle aberration further spreads, thereby can shine the illumination light of high-quality equably.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is a skeleton diagram of observing the light-emitting device of the 1st embodiment from face side.
Fig. 2 is the skeleton diagram of the conductive pattern (pattern) on the substrate of light-emitting device of presentation graphs 1.
Fig. 3 removes the 2nd conductive pattern from the substrate of Fig. 2 and represents to be equipped with the skeleton diagram of the state of a plurality of light emitting diodes (diode).
Fig. 4 is a skeleton diagram of observing the substrate of Fig. 2 from rear side.
Fig. 5 is the profile along the F5-F5 line of Fig. 1.
Fig. 6 is the wiring diagram of the connection status of a plurality of light emitting diodes of expression.
Fig. 7 is the stereogram of lighting device that is equipped with the light-emitting device of Fig. 1.
Fig. 8 is the figure of the relation of the ratio of diameter/height of containment member of light-emitting device of presentation graphs 1 and the related colour temperature difference.
Fig. 9 is the figure of the relation of the ratio of diameter/height of containment member of light-emitting device of presentation graphs 1 and luminous efficiency.
Figure 10 is the figure of the relation of the shooting angle of light-emitting device of presentation graphs 1 and correlated colour temperature.
Figure 11 is a skeleton diagram of observing the light-emitting device of the 2nd embodiment from face side.
Figure 12 is the profile of the light-emitting device of Figure 11.
Figure 13 is the profile of the light-emitting device of the 3rd embodiment.
Figure 14 is a skeleton diagram of observing the light-emitting device of the 4th embodiment from face side.
Figure 15 is a skeleton diagram of observing the light-emitting device of the 5th embodiment from face side.
1,60,70,80,90: light-emitting device 2: substrate
2a, 2b: long limit 2c, 2d: minor face
3: light- emitting component 4a, 4b, 4d: containment member
4c: isolation part 5a: the 1st
5b: the 2nd 5c: outer peripheral face
6: run through portion 8: screw
11: the 2 conductive patterns of 10: the 1 conductive patterns
12: weld pad 12a: slit
13: positive side power supply conductor 14: minus side power supply conductor
15: relaying conductor 16a: the 1st installation region
16b: the 2nd installation region 17,45: recess
19a, 19b: extension 20,25: power supply terminal
21: positive terminal 22: negative terminal
24a, 24b: power supply pattern 26: power connector
26a: lead 27: Relay linker
28: copper layer 29: nickel coating
30: silver coating 32: bridging line
33: branch line 34: curve part
36: bonding agent 38,39: closing line
40a～40i: parallel circuit 41: capacitor
45: recess 45a: bottom surface
45b, 45c: side 46: bend
48,53: resist layer 50: fin material
52: the 2 slits of 51: the 1 slits
62,72,92: intermediate member 100: lighting device
101: self-box 102: the front surface cover
A: width B: at interval
C: height D: distance
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to light-emitting device and its specific embodiment of lighting device, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
According to an embodiment, light-emitting device 1 has: substrate 2 is 2 row ground arrangements a plurality of light-emitting components 3 is installed; And 2 row containment member 4a, 4b, seal a plurality of light-emitting components corresponding to every row.Between the row of containment member is 0.5 times～2 times of width A of each row containment member apart from B.
Below, with reference to accompanying drawing each embodiment is described.
(the 1st embodiment)
Below, referring to figs. 1 through Fig. 7 the 1st embodiment is described.Fig. 1 to Fig. 6 represents light-emitting device 1, and Fig. 7 represents to use the lighting device 100 of this light-emitting device 1.In addition, in each figure, also the repetitive description thereof will be omitted for same section mark same-sign.
Light-emitting device 1 as illumination light source has substrate 2, a plurality of light-emitting component 3 and a pair of containment member 4a, 4b.Substrate 2 is for example formed by the synthetic resin material of glass epoxide (glass epoxy) resin and so on.Substrate 2 is for having the elongated shape of a pair of long limit 2a, 2b and pair of short edges 2c, 2d.And then substrate 2 has the 1st 5a, be positioned at the 2nd 5b of opposition side of the 1st 5a and the outer peripheral face 5c that links the 1st 5a and the 2nd 5b.The 1st 5a and the 2nd 5b are respectively the face of smooth (flat).According to present embodiment, the length dimension along long limit 2a, 2b of substrate 2 is 230mm, is 35mm along the width dimensions of minor face 2c, 2d.And then, below the above 1.8mm of the preferred 0.5mm of the gauge of substrate 2.In the present embodiment, used thickness is of a size of the substrate 2 of 1.0mm.
The shape of substrate 2 is not limited to oblong-shaped, also can be square shape or toroidal.And, for the material of substrate 2, can use pottery (ceramics) material or other synthetic resin materials.And then, in order to improve the thermal diffusivity of each light-emitting component 3,, also can use a kind of one side of the substrate that thermal conductivity is good and thermal diffusivity is excellent (base) plate at aluminium etc. to be laminated with the metal substrate of insulating barrier as substrate 2.
Ora terminalis at long limit 2a, the 2b of regulation substrate 2 is forming a plurality of portions 6 of running through.Run through portion 6 and be circular-arc otch, and on thickness direction, run through substrate 2 in the outer peripheral face 5c of substrate 2 upper shed.And then, run through portion 6 the overhead standard width of a room in an old-style house of the long side direction of substrate 2 every and arranging.
A plurality of screws 8 are inserted the logical portion 6 of running through.Screw 8 is the examples of fixture that substrate 2 are fixed in the base of lighting device, passes the portion of running through 6 and is screwed into base.Screw 8 is being screwed under the state of base, the ora terminalis of substrate 2 by double team between the head and base of screw 8.Whereby, substrate 2 is fixed in base.
As shown in Figure 2, on the 1st 5a of substrate 2, forming the 1st conductive pattern 10 and the 2nd conductive pattern 11.The 1st conductive pattern 10 for example has 9 weld pads (pad) 12, positive side power supply conductor 13, minus side power supply conductor 14 and relaying conductor 15.Weld pad 12 has square shape, and the overhead standard width of a room in an old-style house of the long side direction of substrate 2 every and be arranged in row.
Each weld pad 12 is divided into the 1st installation region 16a and the 2nd installation region 16b by slit (slit) 12a.Slit 12a along the linearly extension of the long side direction of substrate 2, and forms opening at an end of weld pad 12 at the central portion of weld pad 12.On the 1st installation region 16a of weld pad 12, forming six recesses 17.Recess 17 forms opening at a lateral margin of weld pad 12, and the overhead standard width of a room in an old-style house of the long side direction of substrate 2 every and be arranged in row.Similarly, on the 2nd installation region 16b of weld pad 12, forming six recesses 17.Recess 17 forms opening to slit 12a, and the overhead standard width of a room in an old-style house of the long side direction of substrate 2 every and be arranged in row.
As shown in Figure 2, the remaining weld pad 12 except a weld pad 12 that is positioned at substrate 2 left ends has a pair of extension 19a, 19b respectively.Extension 19a, 19b from an end of weld pad 12 along the linearly extension of the long side direction of substrate 2, and the empty each other standard width of a room in an old-style house every and disposing abreast.Extension 19a, 19b have six power supply terminals 20 respectively.Power supply terminal 20 is outstanding from extension 19a, 19b, and the overhead standard width of a room in an old-style house of the long side direction of substrate 2 every and be arranged in row.
An extension 19a of weld pad 12 is along a lateral margin of adjacent weld pad 12 and extend.The power supply terminal 20 of extension 19a is inserted into the recess 17 of the lateral margin place one-tenth opening of weld pad 12.One lateral margin of extension 19a and weld pad 12 electrically cuts off by the interval that insulation usefulness is set at the two.Similarly, the power supply terminal 20 of extension 19a and recess 17 electrically cut off by the gap that insulation usefulness is set at the two.
Another extension 19b of weld pad 12 is inserted into the slit 12a of adjacent weld pad 12.The power supply terminal 20 of extension 19b is inserted into the recess 17 that becomes opening to slit 12a place.Extension 19b and weld pad 12 electrically cut off via the gap of the insulation usefulness that is positioned at slit 12a.Similarly, the power supply terminal 20 of extension 19b and recess 17 electrically cut off by the gap that insulation usefulness is set at the two.
Therefore, by Fig. 2 can be clear and definite be, a plurality of weld pads 12 so that extension 19a, 19b on the width of substrate 2 alternately the counter-rotating form and on the long side direction of substrate 2, be arranged in row.
As shown in Figure 2, positive side power supply conductor 13 is in the mode along the long limit 2b of substrate 2, spreads all over the total length of substrate 2 and extends.Minus side power supply conductor 14 is in the mode along the long limit 2b of substrate 2, along the long side direction of substrate 2 and extend.The left end of minus side power supply conductor 14 is connected in a weld pad 12 that is positioned at substrate 2 left ends.
Positive side power supply conductor 13 has positive terminal 21.Similarly, minus side power supply conductor 14 has negative terminal 22.Positive terminal 21 and negative terminal 22 the empty each other standard width of a room in an old-style house in the left part of substrate 2 every and arranging.
Relaying conductor 15 is in the mode along the long limit 2b of substrate 2, extends along the long side direction of substrate 2.Relaying conductor 15 is positioned at the right part of substrate 2.Relaying conductor 15 has a pair of power supply pattern 24a, 24b. Power supply pattern 24a, 24b be along the linearly extension of the long side direction of substrate 2, and the empty each other standard width of a room in an old-style house every and disposing abreast. Power supply pattern 24a, 24b have six power supply terminals 25 respectively.Power supply terminal 25 is outstanding from power supply pattern 24a, 24b, and the overhead standard width of a room in an old-style house of the long side direction of substrate 2 every and be arranged in row.
Another power supply pattern 24b is inserted into the slit 12a of the weld pad 12 that is positioned at substrate 2 right-hand members.The power supply terminal 25 of power supply pattern 24b is inserted into the recess 17 that becomes opening to slit 12a place.Power supply pattern 24b and weld pad 12 electrically cut off via the gap of the insulation usefulness that is positioned at slit 12a.Similarly, the recess 17 of the power supply terminal 25 of power supply pattern 24b and weld pad 12 electrically cuts off by the gap that insulation usefulness is set at the two.
As Fig. 1 and shown in Figure 2, on positive terminal 21 and negative terminal 22, welding power connector (connector) 26.Power connector 26 is positioned on the 1st 5a of substrate 2, and is electrically connected at power circuit via lead (lead) 26a.And then, the short circuit via Relay linker 27 between minus side power supply conductor 14 and the relaying conductor 15.
As shown in Figure 5, the 1st conductive pattern 10 that comprises weld pad 12 be have copper layer 28, the three-layer structure of nickel coating 29 and silver coating 30.Copper layer 28 is to form by the Copper Foil on the 1st 5a that is layered in substrate 2 is carried out etching (etching).Nickel coating 29 is to be formed on the copper layer 28 by copper layer 28 is implemented the electrolysis plating.Silver coating 30 is to be formed on the nickel coating 29 by nickel coating 29 is implemented the electrolysis plating.Silver coating 30 constitutes lining nickel coating 29 and is exposed to the reflecting layer on the surface of the 1st conductive pattern 10.Therefore, the surface of the 1st conductive pattern 10 becomes reflective surface.The full light reflectance of this reflective surface is about 90%.
The 2nd conductive pattern 11 is to be used for being maintained all weld pads 12 idiostatic when the weld pad 12 of the 1st conductive pattern 10 is implemented the electrolysis plating.Particularly, the 2nd conductive pattern 11 has bridging line shown in Figure 2 (line) 32 and many branch lines 33.Bridging line 32 is in the mode along the long limit 2a of substrate 2, spreads all over the total length of substrate 2 and linearly extension.Meanwhile, the ora terminalis of the substrate 2 stipulated from the long limit 2a to substrate 2 of bridging line 32 leaves predetermined distance D.
And then bridging line 32 has a plurality of curve parts 34 in the position corresponding with the portion of running through 6 of substrate 2.Curve part 34 is described circular arc and bending towards the direction away from the edge of the portion of running through 6.Therefore, bridging line 32 is because the existence of curve part 34, at the position corresponding with the portion of running through 6, also leaves identical with described distance D at least size with the edge of the portion of running through 6.
The 2nd conductive pattern 11 is to be formed at simultaneously on the 1st 5a of substrate 2 with the 1st conductive pattern 10, and is the three-layer structure same with the 1st conductive pattern 10.Therefore, the surface of the 2nd conductive pattern 11 is made of silver coating, thereby has reflective.
The bare chip (bare chip) that a plurality of light-emitting components 3 are light emitting diode (LED).In the present embodiment, in order to send the light of white color system via light-emitting device 1, and use the light-emitting component 3 that sends blue light.The bare chip 3 of LED for example is the element of InGaN system, stacked luminescent layer on sapphire (sapphire) device substrate of light transmission.Luminescent layer is stacked in regular turn n type nitride semiconductor layer, InGaN luminescent layer and p type nitride semiconductor layer and form.And being used to make the flow through electrode of luminescent layer of electric current is by being constituted in positive lateral electrode that is formed by p type electrode pad on the p type nitride semiconductor layer and the minus side electrode that formed by n type electrode pad on n type nitride semiconductor layer.
Light-emitting component 3 is adhered to the 1st installation region 16a and the 2nd installation region 16b of each weld pad 12 via the bonding agent 36 of silicone (silicone) resin system.Particularly, 6 light-emitting components 3 on the 1st installation region 16a of weld pad 12 along the empty standard width of a room in an old-style house of the long side direction of substrate 2 every and be arranged in row, and, 6 light-emitting components 3 on the 2nd installation region 16b of weld pad 12 along the empty standard width of a room in an old-style house of the long side direction of substrate 2 every and be arranged in row.Therefore, each weld pad 12 has 12 light-emitting components 3.
That is, when on the long side direction of substrate 2, arranging 9 weld pads 12, will on the long side direction of substrate 2, arrange each each 54 light-emitting component 3 of row.So, each the row light-emitting component 3 that is arranged in 2 row along the long side direction of substrate 2 are sealed respectively by elongated containment member 4a, 4b as shown in Figure 1.In the present embodiment, be arranged with 2 row light-emitting components 3, but also the row of light-emitting component 3 can be made as more than 3 row along the long side direction of substrate 2.
As Fig. 3 and shown in Figure 5, the positive lateral electrode of light-emitting component 3 is electrically connected at bonding the weld pad 12 of light-emitting component 3 via closing line (bondingwire) 38.The minus side electrode of light-emitting component 3 is electrically connected at the power supply terminal 20 of adjacent weld pad 12 and the power supply terminal 25 of power supply pattern 24a, 24b via another closing line 39.These closing lines 38,39 are made of the fine rule of gold (Au), in order to improve the damage of installation strength and the bare chip that reduces LED, are connecting via the projection (bump) that with gold (Au) is principal component.
That is, as shown in Figure 6, light-emitting device 1 has 9 parallel circuit 40a, 40b, 40c, 40d, 40e, 40f, 40g, 40h, the 40i that is connected in parallel to 12 light-emitting components 3, and 9 parallel circuit 40a, 40b, 40c, 40d, 40e, 40f, 40g, 40h, 40i are one another in series and are connecting.
And then, in the present embodiment,, on 9 parallel circuit 40a, 40b, 40c, 40d, 40e, 40f, 40g, 40h, 40i, connecting capacitor (condenser) 41 respectively in order to prevent the misoperation of light-emitting device 1.Meanwhile, on the circuit that parallel circuit 40a, 40b, 40c, 40d, 40e, 40f, 40g, 40h, 40i are connected in series, also connecting capacitor 41.Capacitor 41 is installed on the 1st 5a of substrate 2.
In the present embodiment, the power supply terminal 20,25 that closing line 39 is connected is inserted into the recess 17 of adjacent weld pad 12.In other words, power supply terminal 20,25 passes in and out towards the central portion of the 1st installation region 16a and the 2nd installation region 16b, therefore can not change the length of closing line 38,39 and light-emitting component 3 is adhered to the central portion of the 1st installation region 16a and the 2nd installation region 16b.Therefore, the heat that light-emitting component 3 is sent conducts to the wide scope of the 1st installation region 16a and the 2nd installation region 16b, and distributes well from weld pad 12 efficient.
All weld pads 12 are maintained idiostatic the 2nd conductive pattern 11 the 1st conductive pattern 10 enforcement electrolysis platings are being become useless later on.Therefore, in the present embodiment, after the 1st conductive pattern 10 is implemented the electrolysis plating, remove the bridging line 32 of the 2nd conductive pattern 11, and block the electric connection of 11 pairs of weld pads 12 of the 2nd conductive pattern.
As Fig. 3 and shown in Figure 5, on the 1st 5a of substrate 2, forming recess 45.Recess 45 is to remove residual vestige (trace) after the bridging line 32, and extends along the long limit 2a of substrate 2.Recess 45 is the grooves by bottom surface 45a and a pair of side 45b, 45c defined, and towards the 1st 5a opening of substrate 2.
And then recess 45 has a plurality of bends 46 in the position corresponding with the portion of running through 6 of substrate 2.Bend 46 runs through the mode of portion 6 with bypass, and forms the shape that the curve part 34 with bridging line 32 coincide.Such recess 45 and leaves predetermined distance from the ora terminalis of substrate 2 between the ora terminalis and weld pad 12 of the substrate 2 that the long limit 2a to substrate 2 stipulates.According to present embodiment, the width dimensions of recess 45 is 1mm, and depth dimensions is 0.3mm.
By the existence of such recess 45, the 2nd conductive pattern 11 only branch line 33 remains on the 1st 5a of substrate 2.Residual branch line 33 is electrically cut off.And then the creepage distance of ora terminalis till weld pad 12 of the substrate of stipulating from the long limit 2a to substrate 22 becomes the value of the height dimension Hou gained of the side 45b, the 45c that add upper recess 45.Thereby creepage distance is than the degree of depth part that has more recess 45 from the space length of ora terminalis till weld pad 12 of substrate 2.The shape of recess 45 is not limited to present embodiment.For example, the section shape of the direction of recess 45 and long side direction quadrature substrate 2 also can be V font or U font.
Light-emitting component 3 and closing line 38,39 that containment member 4a, 4b will be arranged in two row are sealed on the weld pad 12. Containment member 4a, 4b for example are the transparent silicone resin systems that is mixed with the fluorophor of YAG:Ce etc. in right amount, and the mode that becomes flat chevron with its section shape is coated with, and along the long side direction of substrate 2 and linearly extension.For the desirable section shape of containment member 4a, 4b, the back will be elaborated.
Fluorophor is subjected to the optical excitation that light-emitting component 3 sends and the color that radiates the light that sends with light-emitting component 3 is the light of different colours.In the present embodiment,, therefore use and radiate the yellow fluorophor of light that has the yellow system of complementary color relation with blue light, so that the light that light-emitting device 1 can the outgoing white color system for fluorophor because light-emitting component 3 sends blue light.
As Fig. 1 and shown in Figure 5, the 1st 5a of substrate 2 is except the zone of the part of installation light-emitting component 3 and capacitor 41 and so on, by 48 covering of resist (resist) layer of white.At least bonding the part of light-emitting component 3 (bare chip of LED), that is the installation portion of light-emitting component 3 become the zone that is not forming this resist layer 48.This zone is sealed by containment member 4a, 4b institute's landfill as Fig. 1 and shown in Figure 5.
Resist layer 48 has reflective.Resist layer 48 hides the 1st conductive pattern 10, branch line 33 and recess 45 continuously except described zone.Therefore, the 1st conductive pattern 10, branch line 33 and the recess 45 on the 1st of substrate 2 the 5a visually is difficult in sight.
As shown in Figure 5, on the 1st 5a of substrate 2, forming weld pad 12, and on this weld pad 12 stacked resist layer 48.Resist layer 48 is formed by photoresist (photo resist) material of white.And this resist layer 48 is undertaken the light of will emit from light-emitting component 3 and is reflexed to the function in the place ahead (top Fig. 5) and prevent weld pad 12 or the function of the corrosion of the metal level of power supply conductor 13,14 etc.Reflect the light of light-emitting component 3 for the surface that utilizes resist layer 48, the upper surface of light-emitting component 3 must be higher than the surface of resist layer 48 at least.In other words, comparatively it is desirable to, the surface of resist layer 48 is formed on the position lower than the upper surface of light-emitting component 3.
Therefore, in the present embodiment, be 35 μ m with the thickness setting of weld pad 12, be 40 μ m with the thickness setting of resist layer 48, be 80 μ m with the height setting of light-emitting component 3.Comparatively it is desirable to, the thickness setting of resist layer 48 is 30 μ m～40 μ m, for example when the thickness with resist layer 48 changes to 30 μ m, as long as the thickness of weld pad 12 is made as less than 30 μ m.
As Fig. 4 and shown in Figure 5, stacked the fin material (sheet) 50 in 18 four directions on the 2nd 5b of substrate 2.Fin material 50 is examples of electric conductor, is made of the Copper Foil of excellent thermal conductivity.Fin material 50 with the corresponding mode of weld pad 12 on the 1st 5a, on the long side direction of substrate 2 the empty each other standard width of a room in an old-style house every and be arranged in two row.The 1st slit 51 that adjacent fin material 50 extends by the long side direction along substrate 2 and a plurality of the 2nd slits 52 of extending along short side direction and thermal cut-out with the long side direction quadrature of substrate 2.And then the 2nd 5b of fin material 50 and substrate 2 covered by resist layer 53.
On the 2nd 5b that fin material 50 is layered in substrate 2, can make the Temperature Distribution equalization of the substrate 2 of the heat that is subjected to light-emitting component 3.Therefore, can improve the heat dispersion of substrate 2.Especially by between adjacent fin material 50, be provided with along with the 2nd slit 52 of the short side direction of the long side direction quadrature of substrate 2, can suppress the warpage or the distortion of the substrate 2 that causes because of heat.
Secondly, the operation for making light-emitting device 1 describes referring to figs. 1 through Fig. 3 and Fig. 5.In addition, omit explanation herein to the operation of stacked fin material 50 on the 2nd 5b of substrate 2.
At first, on the 1st 5a of substrate 2, form the 1st conductive pattern 10 and the 2nd conductive pattern 11.Particularly, by carrying out etching, thereby form the copper layer 28 of the 1st conductive pattern 10 and the 2nd conductive pattern 11 to being layered in the 1st Copper Foil on the 5a.The part of the formation weld pad 12 in the copper layer 28 of the 1st conductive pattern 10 is electrically connecting via the copper layer 28 of the 2nd conductive pattern 11.Therefore, the part of the formation weld pad 12 in the copper layer 28 of the 1st conductive pattern 10 is maintained idiostatic.
Under this state, the copper layer 28 of the 1st conductive pattern 10 is implemented the electrolysis plating, thereby on copper layer 28, form nickel coating 29.Then, nickel coating 29 is implemented the electrolysis plating, thereby on nickel coating 29, form silver coating 30.In the operation of carrying out the electrolysis plating, all parts of the formation weld pad 12 in the copper layer 28 of the 1st conductive pattern 10 are maintained idiostatic.Therefore, be made as negative pole, will the metal identical be made as positive pole and make electric current two interpolars of flowing through, thereby on the copper layer 28 of the 1st conductive pattern 10, form nickel coating 29 and silver coating 30 with plating by copper layer 28 with the 1st conductive pattern 10.Nickel coating 29 and silver coating 30 also are formed on the copper layer 28 of the 2nd conductive pattern 11 simultaneously.This state is shown in Fig. 2.
Subsequently, as shown in Figure 3, remove the bridging line 32 of the 2nd conductive pattern 11 from the 1st 5a of substrate 2.Particularly, eliminate the 1st bridging line 32 on the 5a.Its result, the weld pad 12 of the 1st conductive pattern 10 and the electric connection of the 2nd conductive pattern 11 are blocked, and weld pad 12 is retained as electrically independently state.
When the 1st 5a eliminates bridging line 32, on the 1st 5a, form the recess 45 of groove shape.Recess 45 is in the position corresponding with the portion of running through 6 of substrate 2, has to make a circulation in the mode of the portion of running through 6 and crooked bend 46.
Subsequently, as shown in Figure 3, on the 1st installation region 16a and the 2nd installation region 16b of weld pad 12, bonding 6 light-emitting components 3 of difference.Then, the positive lateral electrode of light-emitting component 3 is utilized closing line 38 and is electrically connected at the weld pad 12 that is bonded with this light-emitting component 3.Similarly, the minus side electrode with light-emitting component 3 utilizes closing line 39 respectively and is connected in the power supply terminal 20 of adjacent weld pad 12 and the power supply terminal 25 of power supply pattern 24a, 24b.
Again,, on conductive pattern 10,11, form the pattern of resist layer 48 as Fig. 1 and shown in Figure 5.As previously mentioned, the pattern of this resist layer 48 is formed on the substrate surface except the mounting portion of the installation region of light-emitting component 3 or other electronic components.In the present embodiment, use the photo anti-corrosion agent material of white to form resist layer 48.Therefore, by to these resist layer 48 irradiation ultraviolet radiations and expose and develop, to form the pattern in zone.
The operation that forms the pattern of this resist layer 48 also can be carried out before the removal operation of the 2nd above-mentioned conductive pattern 11.In the present embodiment since after removing the 2nd conductive pattern 11 stacked resist layer 48, thereby as Fig. 1 and shown in Figure 5, the recess 45 that eliminates behind the 2nd conductive pattern 11 is understood by 48 landfills of resist layer.But after stacked this resist layer 48, by the 2nd conductive pattern 11 and this resist layer 48 are together eliminated, thereby recess 45 is exposed to the surface of light-emitting device 1.
At last, use containment member 4a, 4b that light-emitting component 3 and the closing line 38,39 that is arranged in two row is sealed on the weld pad 12.Whereby, form Fig. 1 and light-emitting device 1 shown in Figure 5.
At this moment, containment member 4a, 4b are adjusted to suitable viscosity, and at unhardened state, as linearly coating on each row light-emitting component 3 and the closing line 38,39 as Fig. 1, so that it can carefully flow out, and keep the flat chevron shape of section shown in Fig. 5.Then, after containment member 4a, 4b heat hardening, perhaps place after the stipulated time containment member 4a, 4b sclerosis and be fixed in the above-mentioned zone of resist layer 48.
Secondly, with reference to Fig. 7, the lighting device 100 that is incorporated with above-mentioned light-emitting device 1 is described.Shuo Ming lighting device 100 for example is to be arranged on the ceiling in room and the lighting device of the direct Setup Type of ceiling that uses herein.
When coming 1 energising of 2 light-emitting devices by power circuit, a plurality of light-emitting components 3 are lit a lamp simultaneously, from a plurality of light-emitting components 3 difference emergent lights.See through containment member 4a, 4b and front surface cover 102 in regular turn from the light of a plurality of light-emitting component 3 outgoing, utilized as the illumination light of white.That is this lighting device 100 is used as flat light source.
In the process of lighting a lamp of lighting device 100, the fin that weld pad 12 is spread as the heat that each light-emitting component 3 is sent (heat spreader) is brought into play function.And, in the luminescence process of light-emitting device 1, mainly reflexed to the direction of utilizing of light towards the light of substrate 2 sides in the light that light-emitting component 3 radiated by the reflecting layer on weld pad 12 surfaces.Therefore, can make the derivation efficient of light good.
And at this moment, the containment member 4a, the 4b that are sealed with a plurality of light-emitting components 3 undertake the effect that the light from each light-emitting component 3 outgoing is spread.And then front surface cover 102 is undertaken and will be seen through the further effect of diffusion of light of this cover.That is, by containment member 4a, 4b and front surface cover 102 are set, to suppress to use the light-emitting device 1 peculiar brightness disproportionation of point source of light.
But, if as adopt the structure of the row that come sealed light emitting diode with elongated containment member 4a, 4b as the present embodiment, then easily make illumination light generation brightness disproportionation from lighting device 100 because of the characteristic of the brightness of light emitting diode or directive property etc.That is, as if as present embodiment, be divided into 2 elongated containment member 4a, the 4b that are listed as for the coating weight that reduces containment member as Fig. 1 and setting shown in Figure 5, then the isolation part 4c between the row of containment member easily produces dark-part.At this moment, easily produce the brightness disproportionation of the striated that the dark-part because of wire causes, thereby as the aesthetic appearance variation of lighting device 100.
As the method for eliminating this kind brightness disproportionation, consider that row with light-emitting component 3 increase to 3 row so that the method for constriction between the row of containment member.But if adopt this method, it is many that the requirement of light-emitting component 3 will become, and it is many that power consumption also will become.If replace, become not obvious and interval B constriction 2 row light-emitting components 3 in order to make dark-part, then correspondingly, also will narrow down from the width of the illumination light of lighting device 100 radiation, thereby can't obtain required luminous intensity distribution scope.
Promptly, as present embodiment, possess in the light-emitting device 1 of 2 row light-emitting components 3 ( containment member 4a, 4b), in order to obtain not have the brightness disproportionation of striated and to have the illumination light of the wide luminous intensity distribution scope that fully satisfies, the width A of each row containment member 4a, 4b must be designed to suitable value, and the interval B between 2 row containment member 4a, 4b is designed to suitable value.That is,, then the width A B with interval of containment member 4a, 4b must be designed to proper proportion if be defined as prerequisite with the width of substrate 2.
The inventor etc. are in order to investigate this proper proportion, to the width A of 2 row containment member 4a, 4b and at interval B carry out various changes, the brightness disproportionation and the luminous intensity distribution scope of illumination light are observed.Found that, when B at interval is made as 0.5 times～2 times of width A, when more preferably being made as 0.5 times～1 times, can obtain not have the illumination light of the required luminous intensity distribution scope of brightness disproportionation.For example, when because the relation of design and the layout (layout) of light-emitting component 3 when being determined, that is when the interval of the row of light-emitting component 3 had been determined, width A and coating position thereof by control (control) containment member 4a, 4b can be set at aforementioned proportion B/A suitable value.
In fact, the surface of resist layer 48 is exposed to the isolation part 4c between 2 row containment member 4a, the 4b.The part of the light that the surface of this resist layer 48 will emit from each light-emitting component 3 of the row of both sides reflects face side forward.The surface of resist layer 48 has high reflectance as mentioned above, so the reverberation at 4c place, this isolation part is being undertaken and made a become end of unconspicuous effect of dark-part.That is, function is brought into play as being used to suppress the intermediate member of brightness disproportionation in the surface that is positioned at the resist layer 48 of this isolation part 4c.
And, on the other hand, when containment member 4a, the 4b of the section that has flat chevron shape as using as mentioned above, comparatively it is desirable to also to consider the problem of the angle aberration of following explanation.
That is, the angle aberration of light-emitting device 1 can be subjected to the influence of the section shape of containment member 4a, 4b.Therefore, in the structure of present embodiment, the ratio that containment member 4a, 4b for example form diameter and height is 2.0～7.8: 1 roughly dome shape.According to this kind structure, can reduce the angle aberration of light-emitting device 1.For this content, be elaborated with reference to Fig. 8 to Figure 10.In addition, the related colour temperature difference means that for a short time the angle aberration is little.
Figure 10 represents the shooting angle under the different some situations of the ratio of diameter/height and the relation of correlated colour temperature.In addition, said herein " diameter " is meant the width A of containment member 4a, 4b.And said herein " highly " distance C (Fig. 5) till being meant from the light-emitting area of light-emitting component 3 to the top surface of containment member 4a, 4b.In the present embodiment, because that the light-emitting area of light-emitting component 3 is configured to is higher slightly or roughly equal than the surface of resist layer 48, so containment member 4a, 4b " highly " can be thought and be equivalent to containment member 4a, the 4b projecting height from resist layer 48 surfaces.
That is when the ratio of diameter/height was 2.0, the section shape of containment member 4a, 4b was hemispherical.And along with the ratio of diameter/height becomes big, the section shape of containment member 4a, 4b becomes more flat." shooting angle " is to be benchmark (0 °) with vertical below, and the direction of light outgoing is with respect to this benchmark angulation.
Fig. 8 represents the ratio of diameter/height and the relation of the related colour temperature difference." the related colour temperature difference " is meant that shooting angle is the poor of the maximum of 0 ° of correlated colour temperature till the predetermined angular (for example 75 °) and minimum of a value.For example the point of the A among Fig. 8 expression when the ratio of diameter/height be about 2.08 the time related colour temperature difference be about 1000K.This is because in Figure 10, is that the difference d of maximum and minimum of a value obtains for about 1000K on 2.08 the curve at the ratio of diameter/height.
In addition, the major part that arrives user's light is the light of outgoing with the shooting angle below 75 °, so shooting angle is that the related colour temperature difference of 0 °～75 ° scope becomes important.Herein, if the related colour temperature difference surpasses 1000K, then aberration begins more obvious relatively.That is, we can say that the user can not feel that the maximum permissible value of inharmonic related colour temperature difference is 1000K.
As shown in Figure 8, in the ratio of the diameter of containment member 4a, 4b and height was 2.0～7.8: 1 scope, the related colour temperature difference was controlled in below the 1000K.If be positioned at this scope, then the user will be difficult to aware the angle aberration.
, it is generally acknowledged that the correlated colour temperature during each irradiating angle depends on the length of the light path till the surface from light emitting diode 3 to containment member 4a, 4b herein.At this moment, when the section shape of containment member 4a, 4b was hemispherical (that is, diameter/highly be 2.0), the optical path length of each several part became equal, so the angle aberration should become minimum.
However, described analysis result represents that when containment member 4a, 4b were flat, the angle aberration became minimum.For example in the ratio of the diameter of containment member 4a, 4b and height was 4.4～6.2: 1 scope, the related colour temperature difference was lower than 600K, therefore can further reduce the angle aberration.
In addition, the experiment condition of the analysis of Fig. 8 to Figure 10 is fluorophor weight density 10%, correlated colour temperature 5000K.In addition, correlated colour temperature is being set under the fixing situation, when adopting different density of phosphor, is making the shape of containment member 4a, 4b that size variation similarly take place.Therefore, even fluorophor weight density difference about the angle aberration, still can obtain the tendency identical with described experiment condition.And through affirmations such as the inventor, (for example 4000K～6000K) can obtain the tendency identical with described experiment condition down in all colour temperatures that are called as white.That is, be made as 2.0～7.8: 1 scope and can realize that the reduction of angle aberration is not limited to described experiment condition with ratio highly by diameter containment member 4a, 4b.
In addition, Fig. 9 represents the ratio of diameter/height and the relation of luminous efficiency.As shown in Figure 9, even if the ratio of diameter/height is greatly changed, luminous efficiency is still almost constant.That is even if change the shape of containment member 4a, 4b in order further to reduce the related colour temperature difference, the luminous efficiency of light-emitting device 1 still can reduce hardly.
In addition, if consider luminous efficiency, then the diameter of containment member 4a, 4b is that 2.0～5.2: 1 scope also can be kept luminous efficiency high slightly with the ratio of height, and is therefore comparatively desirable.And if consider firm (robust) property, then the ratio of the diameter of preferred containment member 4a, 4b and height is 5.2～7.8: 1 scope.For example under the situation of diameter 4mm, height 0.675mm, the ratio of diameter/height is 5.93.At this moment, even diameter and changing to some extent in the scope of ± 0.1mm highly respectively, the deviation of ratio is 5.29～6.78, still can suppress change less.
Below, the effect of the 1st above-mentioned embodiment is described.
The weld pad 12 of the 1st conductive pattern 10 is maintained idiostatic the 2nd conductive pattern 11 to be constituted by bridging line 32 and from bridging line 32 branches and many branch lines 33 that reach weld pad 12.Therefore, by removing bridging line 32, can block the electric connection of 12 of 11 pairs of weld pads of the 2nd conductive pattern from substrate 2.
Thereby, can efficient well and easily block the operation of the electric connection between the weld pad 12, thereby can improve the productivity of light-emitting device 1.
And, eliminate the residual recess 45 in bridging line 32 back and leave predetermined distance from the ora terminalis of substrate 2, and between the ora terminalis and weld pad 12 of substrate 2.Its result, link the ora terminalis of substrate 2 and the creepage distance between the weld pad 12 than ora terminalis that links substrate 2 and the part that the space length between the weld pad 12 has more the degree of depth that is equivalent to recess 45, thus the insulation distance till can guaranteeing from the ora terminalis of substrate 2 to weld pad 12.
In addition, recess 45 is in the position corresponding with the portion of running through 6 of substrate 2, has to make a circulation in the mode of the portion of running through 6 and crooked bend 46.Therefore, the insulation distance till can guaranteeing from the edge of the portion of running through 6 to bend 46 comparably, the dielectric voltage withstand of substrate 2 (dielectric strength) improves.Therefore, though at the screw 8 that passes the portion of running through 6 under the metal situation, also can fully guarantee the insulating properties between screw 8 and the weld pad 12, thereby can improve the reliability that is electrically insulated of light-emitting device 1.
Therefore and in the present embodiment, the surface of resist layer 48 is formed on the position lower than the height of the upper surface of light-emitting component 3, and can alleviate resist layer 48 becomes from the situation of the obstacle of the light of light-emitting component 3 outgoing, thereby can improve luminous efficiency.
And, in the present embodiment, the interval B of containment member 4a, 4b is made as 0.5～2 with respect to ratio B/A of the width A of containment member 4a, 4b, more preferably is made as 0.5～1, therefore can be suppressed between containment member 4a, the 4b and produce dark-part, thereby can suppress the brightness disproportionation of striated.Especially, in the present embodiment, function is brought into play as having the reflecting surface of high reflectance in the surface that is positioned at the resist layer 48 at the 4c place, isolation part between containment member 4a, 4b, therefore can make the dark-part between containment member 4a, the 4b more not obvious.
And according to present embodiment, in order to eliminate the angle aberration of light-emitting device 1, with the diameter of containment member 4a, 4b, that is the ratio of width A and height C is made as 2.0～7.8: 1.Thus, can obtain the almost good illumination light of non-angular aberration.
And then, by as the lighting device 100 of present embodiment, front surface cover 102 is set in lower opening portion, suppress brightness disproportionation as can making as mentioned above and the unconspicuous light of angle aberration further spreads, thereby can shine the illumination light of high-quality equably.
(the 2nd embodiment)
Secondly, the light-emitting device 60 of the 2nd embodiment is described with reference to Figure 11 and Figure 12.The light-emitting device 60 of present embodiment is on the surface of the resist layer 48 that is positioned at the 4c place, isolation part between containment member 4a, 4b, have along the long side direction of substrate 2 and the elongated intermediate member 62 that extends, in addition, has light-emitting device 1 identical construction with above-mentioned the 1st embodiment.Therefore, herein, for similarly bringing into play the inscape of function with the 1st embodiment, the mark same-sign is also omitted its detailed description.
In addition, Figure 11 is the plane corresponding to Fig. 1, and Figure 12 is the profile corresponding to Fig. 5.And, this light-emitting device 60 be with the light-emitting device 1 of the 1st embodiment similarly, as shown in Figure 7,2 light-emitting devices are coupled together the lighting device 100 of packing into.
According to the light-emitting device 60 of present embodiment, be incident to intermediate member 62 from the part of the light of each row light-emitting component 3 outgoing.The light that is incident to this intermediate member 62 is subjected to leaded light and diffusion via intermediate member 62, its part is reflected by the surface of the resist layer of isolation part 4c.Comprise of the surperficial outgoing of this catoptrical light that is spread by intermediate member 62 from middle member 62.
Therefore,, compare, can further improve the brightness between containment member 4a, 4b, thereby can make the brightness disproportionation of the striated that the dark-part at 4c place, isolation part causes more not obvious with the 1st embodiment that intermediate member 62 is not set according to present embodiment.
In addition, in the present embodiment, also with the 1st embodiment similarly, the width B of isolation part 4c is set at 0.5 times～2 times of width A of containment member 4a, 4b.And, the width A of containment member 4a, 4b is set at 2.0 times～7.8 times of height C.Therefore, in the present embodiment, also can suppress aforesaid brightness disproportionation or angle aberration.
Therefore especially, the light-emitting device 60 of present embodiment has intermediate member 62 between containment member 4a, 4b, even the width B of isolation part 4c 2 times of width A that surpass containment member 4a, 4b also are difficult to produce brightness disproportionation.That is, by intermediate member 62 is set, the brightness that can improve isolation part 4c also need not worry to produce brightness disproportionation even therefore widen the width B of isolation part 4c slightly.In other words,, can widen the width B of the isolation part 4c between containment member 4a, 4b slightly, thereby also can widen luminous intensity distribution scope as lighting device 100 by intermediate member 62 is set.
(the 3rd embodiment)
Secondly, the light-emitting device 70 of the 3rd embodiment is described with reference to Figure 13.The isolation part 4c place no resist layer 48 of the light-emitting device 70 of present embodiment between containment member 4a, 4b in addition, has the structure roughly the same with the light-emitting device 60 of the 2nd above-mentioned embodiment.Therefore, herein, for similarly bringing into play the inscape mark same-sign of function and omit its detailed description with the 2nd embodiment.
In addition, Figure 13 is the profile corresponding to Figure 12.And, this light-emitting device 70 also with the light-emitting device 1 of the 1st embodiment similarly, as shown in Figure 7,2 light-emitting devices are coupled together the lighting device 100 of packing into.
In the present embodiment, be substituted in resist layer 48 is set between containment member 4a, 4b, and intermediate member 72 is set.This intermediate member 72 be with the intermediate member 62 of above-mentioned the 2nd embodiment similarly, formed by silicone resin with light transmission.And, comparatively it is desirable to, the height on the surface of this intermediate member 72 also is equal or for more than it with the height at the top of the containment member 4a, the 4b that are positioned at its both sides.In addition, in the present embodiment, intermediate member 72 be contact pad 12 silver coating 30 the surface and be provided with.Therefore, in the present embodiment, a part of light that is incident to intermediate member 72 from the light of each row light-emitting component 3 outgoing is reflected by the surface of silver coating 30.
That is, according to present embodiment, a part that is incident to the light of the intermediate member 72 higher silver coating 30 of rate that will be reflected reflects, thereby can further improve brightness at the intermediate member 72 at isolation part 4c place.Especially, according to present embodiment, because resist layer 48 is not set on the 4c of isolation part, thereby can reduce the light that is blocked by resist layer 48, correspondingly, can further improve the brightness at some 4c place, isolation part of intermediate member 72.
In addition, in the present embodiment, also with the 1st embodiment similarly, the width B of isolation part 4c is set at 0.5 times～2 times of width A of containment member 4a, 4b.And, the width A of containment member 4a, 4b is set at 2.0 times～7.8 times of height C.Therefore, in the present embodiment, also can suppress aforesaid brightness disproportionation or angle aberration.
(the 4th embodiment)
Secondly, the light-emitting device 80 of the 4th embodiment is described with reference to Figure 14.The light-emitting device 80 of present embodiment replaces containment member 4a, 4b and is provided with and coats respectively and the containment member 4d of sealed light emitting element 3, in addition, has the structure roughly the same with the light-emitting device 1 of the 1st above-mentioned embodiment.Therefore, also the repetitive description thereof will be omitted for the part mark same-sign identical or suitable with the 1st embodiment.
The a plurality of containment member 4d that seal each light-emitting component 3 severally are of similar shape and identical size, and arrange along the long side direction of substrate 2 and to be coated with into 2 row.That is, all be identical size along width A and the height C of each containment member 4d of the short side direction (width) of substrate 2.And at this moment, the isolation part 4c between each row containment member 4d is set to width B as shown in the figure.
In the present embodiment, also with the 1st embodiment similarly, the width B of isolation part 4c is set at 0.5 times～2 times of width A of containment member 4a, 4b.And, the width A of containment member 4a, 4b is set at 2.0 times～7.8 times of height C.Therefore, in the present embodiment, also can play and the same effect of above-mentioned the 1st embodiment, can suppress aforesaid brightness disproportionation or angle aberration.
Especially,,, therefore compare, can reduce the material of containment member, correspondingly, also can reduce material cost with the 1st embodiment owing to make containment member 4d intersperse among each light-emitting component 3 according to present embodiment.
In addition, in the present embodiment, each light-emitting component 3 is provided with containment member 4d, but is not limited to this, also can carry out block (block) and divide, and utilize containment member to seal each block a plurality of light-emitting components 3.
(the 5th embodiment)
Figure 15 represents the plane of the light-emitting device 90 of the 5th embodiment.This light-emitting device 90 is provided with the intermediate member 92 identical with the intermediate member 62 of above-mentioned the 2nd embodiment between the row of containment member 4d, in addition, have light-emitting device 80 identical construction with the 4th above-mentioned embodiment.Therefore, herein, for similarly bringing into play the inscape mark same-sign of function and omit its detailed description with the light-emitting device 80 of the 4th embodiment.
In the present embodiment, also with the 1st embodiment similarly, the width B of isolation part 4c is set at 0.5 times～2 times of width A of containment member 4a, 4b.And, the width A of containment member 4a, 4b is set at 2.0 times～7.8 times of height C.Therefore, in the present embodiment, also can play and the same effect of above-mentioned the 1st embodiment, can suppress aforesaid brightness disproportionation or angle aberration.
And, according to present embodiment, can play the effect same with the light-emitting device 80 of the 4th embodiment, in addition, by intermediate member 92 is set, can further improve the brightness of isolation part 4c, also can and the 2nd embodiment similarly make between the row of containment member 4d and widen slightly.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the structure that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
For example, in the above-mentioned embodiment, form intermediate member 62,72,92 by the silicone resin of light transmission, but the material of intermediate member is not limited to this material, for example, also can use other transparent resins such as acrylic resin.No matter use which kind of material, as long as can reduce and containment member 4a, the 4b of sealed light emitting element 3, the relative brightness difference between the 4d.
And, in the above-mentioned embodiment, be applied to isolation part 4c by the silicone resin that will have flowability and upward form intermediate member 62,72,92, but be not limited to this, can not form intermediate member by there being mobile hard material yet.At this moment, as long as containment member 4a, 4b, 4d that intermediate member is contacted are formed by the rubber-like material, whereby, can improve both connecting airtight property.
And in the above-mentioned embodiment, intermediate member 62,72,92 is only formed by the silicone resin of light transmission, but also can sneak into diffusant in intermediate member.As diffusant, aluminium oxide or silica (silica) etc. are for example arranged.As so, diffusant is sneaked in the intermediate member 62,72,92, can improve the diffusion effect of the light in the intermediate member.
And then, as lighting device, applicable to the light source of the ligthing paraphernalia that uses at indoor or outdoors, display (display) device etc.
Claims (8)
1. light-emitting device is characterized in that comprising:
A plurality of light-emitting components;
Substrate is the arrangement of multiple row ground described a plurality of light-emitting component is installed; And
The multiple row containment member comes described a plurality of light-emitting components are formed sealing along described row, and
Distance between the row of the described containment member of adjacency is more than 0.5 times and below 2 times of width of described containment member,
The width of described containment member is more than 2.0 times and below 7.8 times of height of sealing member.
2. light-emitting device according to claim 1 is characterized in that also comprising:
Intermediate member is disposed between the described row of adjacency and has reflecting surface, and this reflecting surface will the light of outgoing reflexes to the place ahead via the containment member of the described row of sealing.
3. light-emitting device according to claim 1 is characterized in that,
Described intermediate member has reflecting surface, and the light that this reflecting surface will the outgoing via the containment member of adjacency reflexes to the place ahead.
4. light-emitting device according to claim 1 is characterized in that,
Described intermediate member is formed by transparent resin.
5. light-emitting device according to claim 2 is characterized in that,
Described intermediate member comprises the diffusant of aluminium oxide or silica etc.
6. light-emitting device according to claim 1 is characterized in that,
The width of described containment member is 2.0 times～7.8 times of height of sealing member.
7. lighting device is characterized in that comprising:
Device body; And
According to each described light-emitting device in the claim 1 to 6, be equipped on the described device body.
8. lighting device according to claim 7 is characterized in that also comprising:
The front surface cover of light diffusing is in the mode of the front surface that covers described light-emitting device and be installed on the described device body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-029544 | 2010-02-12 | ||
| JP2010029544A JP2011166036A (en) | 2010-02-12 | 2010-02-12 | Light emitting device and lighting apparatus |
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| CN102162627A true CN102162627A (en) | 2011-08-24 |
| CN102162627B CN102162627B (en) | 2013-08-14 |
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| CN103672511A (en) * | 2013-11-30 | 2014-03-26 | 四川格兰德科技有限公司 | Fluorescent tube |
| CN103672778A (en) * | 2013-12-04 | 2014-03-26 | 四川格兰德科技有限公司 | Multifunctional LED lamp holder |
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| KR20100003321A (en) * | 2008-06-24 | 2010-01-08 | 삼성전자주식회사 | Light emitting element, light emitting device comprising the same, and fabricating method of the light emitting element and the light emitting device |
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- 2010-02-12 JP JP2010029544A patent/JP2011166036A/en active Pending
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2011
- 2011-02-11 CN CN 201110037800 patent/CN102162627B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1846318A (en) * | 2003-09-29 | 2006-10-11 | 松下电器产业株式会社 | Linear light source and production method therefor and surface emission device |
| US20050285926A1 (en) * | 2004-06-29 | 2005-12-29 | Fuji Photo Film Co., Ltd. | Light source assembly, method of producing light source assembly, and color thermal printer |
| JP2006351708A (en) * | 2005-06-14 | 2006-12-28 | Toyoda Gosei Co Ltd | Light emitting diode lamp and light source device |
| CN201302063Y (en) * | 2008-12-05 | 2009-09-02 | 上海芯光科技有限公司 | Seamless splicing type semiconductor planar light source module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672502A (en) * | 2013-10-28 | 2014-03-26 | 深圳市健炜创光电科技有限公司 | Road traffic marking LED lamp |
| CN103672511A (en) * | 2013-11-30 | 2014-03-26 | 四川格兰德科技有限公司 | Fluorescent tube |
| CN103672778A (en) * | 2013-12-04 | 2014-03-26 | 四川格兰德科技有限公司 | Multifunctional LED lamp holder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102162627B (en) | 2013-08-14 |
| JP2011166036A (en) | 2011-08-25 |
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