CN202134569U - LED package - Google Patents
LED package Download PDFInfo
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- CN202134569U CN202134569U CN2011201870776U CN201120187077U CN202134569U CN 202134569 U CN202134569 U CN 202134569U CN 2011201870776 U CN2011201870776 U CN 2011201870776U CN 201120187077 U CN201120187077 U CN 201120187077U CN 202134569 U CN202134569 U CN 202134569U
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- Prior art keywords
- led
- reflector
- packaging body
- led packaging
- sealant
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Abstract
The utility model discloses an LED package, comprising a plastic housing, and a reflection cup located in the plastic housing and has an LED, wherein the LED deviates from the centre of the reflection cup. The peak emission of the LED package may be inclined or deviated, so that the peak emission can be customized according the installation height or position of an LED display. The LED package provided in the utility model can be used for various different illumination applications, especially application of emission deviated from a vertical axis from a small size high output light source.
Description
Technical field
The utility model relates to light-emitting diode (LED), and is specifically related to adopt LED packaging body and the display of LED.
Background technology
Light-emitting diode (LED) is electric energy to be changed into the solid state device of light, and generally includes one or more active layers that are clipped in the semi-conducting material between the opposite doped layer.When striding across doped layer and apply bias voltage, hole and electronics inject into active layer, and they are compound in active layer, thereby produce light.Light emits from active layer and from all surface of LED.
10 years of past or the technological progress of longer time cause LED to have the emission effciency of littler floor space, increase and the cost of reduction.Compare other reflectors, LED also has the working life that has increased.For example, the working life of LED can surpass 50000 hours, and the working life of incandescent lamp bulb is about 2000 hours.LED is also more durable than other light sources, and can consume power still less.Based on these and other reasons, LED becomes more welcome and nowadays has been applied in the increasing application, and these application are the field of white heat, fluorescence, halogen and other reflector traditionally.
LED also is used for large-scale and miniscope.(for example sports tournament, racing track, concert and such as so large-scale public domain, New York Times Square) becomes more and more general to LED-based large screen display (being commonly referred to huge screen) in many indoor and outdoors place.Many such displays or screen can reach 60 feet high and take advantage of 60 feet wide.These screens can comprise thousands of " pixel " or " picture element module ", and wherein each " pixel " or " picture element module " can comprise a plurality of LED.Picture element module can use the LED of high efficiency and high brightness, even under the feasible sunlit situation by day of such LED, also can clearly see this display from relative place far away.LED in the picture element module can be less to three or four LED (redness, a green and a blueness), and these LED allow the pixel emission by light red, green and/or the multiple different colours that blue light combines.In the huge screen of maximum, each picture element module all can have many LED.Picture element module is arranged in rectangular mesh.For example, can be that 640 modules are wide multiply by 480 module height to grid, and the final size of screen then depends on the actual size of picture element module.
LED-based conventional display is by computer system control; This computer system receiving inputted signal (for example TV signal); And form whole display image according to the required particular color of picture element module, the light that which LED is luminous and how bright emission is in each picture element module of computer system decision.Also can comprise power-supply system, it offers each picture element module with electric energy, and offer the electric energy of each LED can be modulated, thereby make it with required brightness emission light.Conductor is provided, thereby suitable power supply signal is offered each LED in the picture element module.
Light-emitting diode display seldom is installed on spectators' apparent altitude place, and is installed on the height more than the apparent altitude more at large, for example be installed on the side of building or the grandstand in stadium top on.With reference now to Fig. 1 and 2,, it illustrates the conventional light-emitting diode display 10 of the eminence more than the apparent altitude that is installed on spectators 12.Spectators 12 are usually located at display 10 times, and the display that looks up, and make spectators watch the sight line 14 of display 10 and 16 one-tenth θ angles of display emission direction perpendicular to display surface.With reference now to Fig. 2,, light-emitting diode display as shown in fig. 1 generally includes a plurality of reflectors such as LED packaging body 20, and this packaging body 20 generally includes the LED 22 that is installed in the reflector 24, and above-mentioned reflector 24 is enclosed in the sealant 26 that is generally bullet shaped.The peak emission of LED packaging body 20 is usually along the packaging body longitudinal axis 28.Fig. 3 is polar coordinates iso-candela (candelar) Figure 30 of LED packaging body 20, and it illustrates typical peak emission along the reflector longitudinal axis.
Refer again to Fig. 1, a kind of display is shown, it comprises a plurality of LED packaging bodies 20, and LED packaging body 20 causes the display peak emission characteristic vertical line on vertical direction 16 with the emission of the characteristic shown in Figure 30, and is as shown in the figure.The Iv of light-emitting diode display 10 and far-field pattern (FFP) peak emission characteristic also along vertical axis 16 perpendicular to display.Spectators' sight line 14 is positioned under the vertical line when display 10 is installed in eminence, and many light of display emission are not seen by spectators and slatterned.The method of the quantity of the light that a kind of minimizing is wasted is with the angle of more mating with spectators' sight line 14 display to be installed, but this possibly need unworkable complicacy and expensive mounting hardware, particularly for the very huge display that is positioned at eminence.
The utility model content
The light-emitting diode display that the utility model relates to the LED packaging body and adopts this LED packaging body, wherein the peak emission of LED be tilt or skew, thereby setting height(from bottom) or position that its peak emission is customized to light-emitting diode display are complementary.According to a plurality of LED packaging bodies that one embodiment comprises of the light-emitting diode display of the utility model, wherein the peak emission of at least some LED packaging bodies tilts from the packaging body center line.By this way the LED packaging body is installed in the display, so that produce image with the peak emission that tilts from the vertical line of display plane.The number of different types and the setting that can be used for according to the LED packaging body embodiment in the light-emitting diode display of the utility model are disclosed.It is understandable that, also can use many other embodiment.
The LED packaging body one embodiment comprises the LED that is arranged in reflector, this LED departs from the center of reflector.Another embodiment comprises LED that is installed in the reflector and the sealant that covers at least a portion of reflector.Reflector can depart from the vertical center line of LED packaging body.Another embodiment of LED packaging body comprises LED that is installed in the reflector and the sealant that covers at least a portion of reflector.Reflector can depart from the center line of sealant.
Other embodiment of LED packaging body can comprise the sealant that is installed on the LED in the reflector and covers at least a portion of said reflector, and reflector rotates in sealant.Other embodiment comprise can asymmetric reflector or sealant.The LED packaging body also can comprise LED, conductor leading framework that is installed in the reflector and the sealant that centers at least a portion of reflector and said conductor leading framework.In these embodiment, sealant can be around reflector and lead frame rotation.
According to a kind of LED packaging body of providing on the other hand of the utility model; It comprises: plastic casing, be arranged in the reflector of plastic casing and the LED of reflector; Wherein said LED departs from the center of said reflector and places, and makes the peak emission of said packaging body tilt from the packaging body center line.
Further, said LED packaging body further comprises the sealant that covers said reflector at least in part.
Further, said LED packaging body further comprises the lens that cover said reflector at least in part.
Further, said LED departs from the center of said reflector and places, and makes peak emission tilt with the off-centered direction in the opposite direction of said LED.
One side again according to the utility model provides a kind of LED packaging body; Said LED packaging body comprises: plastic casing, the sealant that is arranged in the reflector of plastic casing and is installed in the LED of reflector and covers said reflector at least in part; Said reflector departs from the packaging body center line of said packaging body to be placed, and makes the peak emission of said packaging body tilt from the packaging body center line.
Further, said reflector departs from packaging body center line location, makes said peak emission tilt with the off-centered direction in the opposite direction of said reflector.
Another aspect according to the utility model provides a kind of LED packaging body; It comprises: plastic casing, the sealant that is arranged in the reflector of housing and is installed in the LED of reflector and covers said reflector at least in part; Said sealant departs from the packaging body center line to be placed, and makes the peak emission of said packaging body tilt from the packaging body center line.
Further, said sealant departs from the packaging body center line to be placed, and makes said peak emission tilt with the identical direction of the off-centered direction of said sealant.
According to a kind of LED packaging body of providing on the other hand of the utility model; It comprises: plastic casing, the sealant that is arranged in the reflector of plastic casing and is installed in the LED of reflector and covers said reflector at least in part; Said reflector makes the peak emission of said packaging body tilt from the packaging body center line with respect to the rotation of packaging body center line.
Further, said sealant comprises lens.
Further, the said inclination of said peak emission is rotated on the identical direction with the said of said reflector.
Further, said LED packaging body further comprises the conductor leading framework that is arranged in said sealant at least in part, and wherein said lead frame tilts.
Further, said LED packaging body further comprises the conductor leading framework that is arranged in said sealant at least in part, and wherein said sealant and said lead frame are arranged on the said packaging body center line.
According to the utility model a kind of LED packaging body is provided also on the other hand; The LED that it comprises plastic casing, is arranged in the reflector of housing and is installed in reflector; Wherein said reflector is asymmetric, makes the peak emission of said packaging body tilt from the packaging body center line.
Further, said reflector comprises angled reflecting surface, and at least a portion of this reflecting surface has different angles so that said peak emission tilts.
Further, said peak emission tilts opposite with the asymmetry of said reflector.
Further, said peak emission tilts asymmetry with said reflector on identical direction.
Further, at least one reflector sidewall sections of said reflector has the height of the remainder that is different from said reflector sidewall.
Further, at least one reflecting surface of said reflector has the reflection angle different portions.
Further, at least one reflecting surface of said reflector has the curvature different portions.
One side again according to the utility model provides a kind of LED packaging body; It comprises: plastic casing, the sealant that is arranged in the reflector of plastic casing and is installed in the LED of reflector and covers said reflector at least in part; Wherein said sealant is asymmetric, makes the peak emission of said packaging body tilt from the packaging body center line.
Further, the asymmetric part that comprises of said sealant with different curvature.
Further, the asymmetry of the inclination of said peak emission and said sealant is opposite.
Further, the inclination of said peak emission and the asymmetry of said sealant are on identical direction.
Another aspect according to the utility model provides a kind of LED packaging body; Comprise: plastic casing, the sealant that is arranged in the reflector of housing and is installed in the LED of reflector and covers said reflector at least in part, said sealant makes said emission tilt with respect to the center line rotation of said packaging body.
Further, said reflector is positioned on the center line of said packaging body and is substantially perpendicular to the center line of said packaging body.
Further, said LED packaging body further comprises the conductor leading framework on the center line that is positioned at said packaging body.
According to the LED packaging body of the utility model, the wherein peak emission tiltable or the skew of LED packaging body, thus customize its peak emission according to the setting height(from bottom) or the position of light-emitting diode display.LED packaging body according to the utility model can be used in the multiple different illumination application, and particularly those use from the application of the high output light source off-vertical of small size axle emission.
Specify and with by way of example the accompanying drawing of the utility model characteristic is shown through hereinafter, these of the utility model will become obvious with other aspects and advantage.
Description of drawings
Fig. 1 is mounted in the sketch map of the conventional light-emitting diode display of spectators top;
Fig. 2 is the end view that can be used for the LED packaging body of the light-emitting diode display among Fig. 1;
Fig. 3 is the polar coordinates iso-plots that the light emission characteristics of the LED packaging body among Fig. 2 is shown;
Fig. 4 is the vertical view according to an embodiment of the LED packaging body of the utility model;
Fig. 5 is the sectional view along the LED packaging body shown in Fig. 4 of hatching 5-5;
The form of Fig. 6 illustrates the skew of the peak emission of the LED packaging body that the skew owing to LED in the reflector causes;
Fig. 7 is a rectangle candela distribution map, and it illustrates the skew of the peak emission of the LED packaging body that the skew owing to LED in the reflector causes;
Fig. 8 is the end view according to another embodiment of the LED packaging body of the utility model;
Fig. 9 is the sectional view along the LED packaging body shown in Fig. 8 of hatching 9-9;
Figure 10 is a polar coordinates iso-plots, and it illustrates the skew of the emission pattern that causes through the reflector in the skew LED packaging body;
Figure 11 is a rectangle candela distribution map, and it illustrates the skew of the emission pattern that causes through the reflector in the skew LED packaging body;
Figure 12 is the end view according to another embodiment of the LED packaging body of the utility model;
Figure 13 is the sectional view along the LED packaging body shown in Figure 12 of hatching 13-13;
The form of Figure 14 illustrates the skew of the peak emission of the LED packaging body that the rotation degree by reflector causes;
Figure 15 is a rectangle candela distribution map, and it illustrates the skew of the peak emission pattern that the rotation degree by reflector causes;
Figure 16 is the end view according to another embodiment of the LED packaging body of the utility model;
Figure 17 is the vertical view that can be used for according to an embodiment of the reflector of the LED packaging body of the utility model;
Figure 18 is a polar coordinates iso-plots, and it illustrates the skew through the peak emission pattern that the reflector among Figure 17 is applied to cause in the LED packaging body according to the utility model;
Figure 19 is the vertical view that can be used for according to another embodiment of the reflector in the LED packaging body of the utility model;
Figure 20 is another embodiment according to the LED packaging body of the utility model with asymmetric sealant;
Figure 21 is a polar coordinates iso-plots, and it illustrates the skew owing to the peak emission pattern with LED packaging body that the asymmetric sealant shown in Figure 20 causes;
Figure 22 is the end view according to another embodiment of the LED packaging body of the utility model;
Figure 23 is a rectangle candela distribution map, and it illustrates the skew of the peak emission pattern that causes owing to the rotation according to the sealant in the reflector packaging body of the utility model;
Figure 24 is a polar coordinates iso-plots, and it illustrates the skew of the peak emission pattern that causes owing to the rotation according to the sealant in the reflector packaging body of the utility model;
Figure 25 illustrates the sketch map of employing according to the light-emitting diode display of the LED packaging body of the utility model;
Figure 26 is the vertical view according to the mounted on surface LED packaging body of the utility model;
Figure 27 is the end view according to another embodiment of the mounted on surface LED packaging body of the utility model;
Figure 28 is the end view according to another embodiment of the mounted on surface LED packaging body of the utility model;
Figure 29 is the end view according to the another embodiment of the mounted on surface LED packaging body of the utility model;
Figure 30 is the vertical view according to another embodiment of the mounted on surface LED packaging body of the utility model;
Figure 31 is the end view according to the another embodiment of the mounted on surface LED packaging body of the utility model;
Figure 32 is the sectional view according to another embodiment of the mounted on surface LED packaging body of the utility model;
Figure 33 is the sectional view according to another embodiment of the mounted on surface LED packaging body of the utility model;
Figure 34 is the another embodiment according to the mounted on surface LED packaging body of the utility model; And
Figure 35 is the vertical view of an embodiment of LED packaging body of indicating the mark of emission incline direction according to having of the utility model.
Embodiment
The utility model relates to the various embodiment of LED packaging body, and said LED packaging body is characterised in that peak I
VWith the FFP emission characteristics from the vertical center line of the light-emitting diode display that adopted this LED packaging body squint an angle or the angle that tilts.According to the reflector of the light-emitting diode display of the utility model LED packaging body capable of using as them; And be set to have substantially similar peak emission skew or tilt through the LED packaging body, said light-emitting diode display can provide the peak emission with same or similar skew or inclination.
In certain embodiments, with respect to display plane the inclination of the emission skew of light-emitting diode display is described, and more specifically, the inclination of the emission skew of light-emitting diode display is described with respect to the vertical line of display plane.For flat-panel monitor, display plane is the surface of display, and when display was installed to flat surfaces, display plane was parallel to the installation surface of display usually.For the curved surface display, display plane is the tangent plane of display surface, and in certain embodiments, this tangent plane can be parallel to the installation surface of display.In the present embodiment, the vertical line of display plane (that is tangent plane) is also perpendicular to installation surface.
In certain embodiments, the peak emission characteristic of LED packaging body and light-emitting diode display is downward-sloping with respect to the display plane vertical line.This set is specially adapted to the application that display is installed on possible spectators' apparent altitude top.The peak emission characteristic of these light-emitting diode displays is more near seeing the sight line coupling of display with spectators.This has increased the quantity of directive spectators' using light, and has reduced the quantity of waste light.This also allows display flatly to be installed to its place, high position, has eliminated cost and complexity that display is installed with an angle, still allows more LED light directed along spectators' sight line simultaneously.Through making more LED light directed, than the peak I that has perpendicular to display along spectators' sight line
VWith the display of FFP characteristic, the display that is in eminence can seem brighter and have more bright-coloured color.
The a plurality of different embodiment that squint or tilt according to the required peak emission of possessing of the utility model below will be described, but it is understandable that, except those modes of this paper explanation, inclination can be provided by different way.As preceding text mentioned, some embodiment explanation be downward-sloping peak emission, these spectators that make display of being positioned at eminence can be shown under the device more effectively watch.But it is understandable that, also can be used for upwards skew of peak emission, or peak emission is squinted to the left or to the right according to the embodiment of the utility model.Though the embodiment with reference to LED explains display will also be appreciated that the reflector that can use number of different types.LED also can have different installations and be provided for being installed in the display, for example lead-in wire or mounted on surface setting.
According to different factors (for example display sizes, height of display and general spectators and the distance between the display), the difference skew of peak emission can be provided in different embodiment or tilt.The proper range that peak emission tilts is the inclination of 5-20 degree scope, in order to adapting to outdoor utility best, yet it is understandable that, can use other range of tilt angles.For example, the scope that tilts of this peak emission is suitable for 10 meters high displays that the spectators of range display 25-40 rice watch.
This paper explains the utility model with reference to specific embodiment, but it is understandable that, the utility model can many multi-form enforcements, and should the utility model be interpreted as and be limited to disclosed these embodiment of this paper.Particularly; Many different LED, reflector and lead frame setting those that explain except that preceding text can be provided; And sealant can provide other characteristics, to change from the direction of LED packaging body with the peak emission of the light-emitting diode display of having used this LED packaging body.Though the different embodiment of the LED packaging body of hereinafter discussion relate to the use in light-emitting diode display, they can independently or be used for multiple other with other LED packaging bodies with identical or different peak emission inclination and use.
Will also be appreciated that when the element such as layer, zone or substrate be called as be positioned at another element " on " time, it can be located immediately on this another element, or also can have the insertion element.And, such as " inside ", " outside ", " top ", " on ", " bottom ", " in ... below " and " under " relative terms and similar terms all can be used among this paper, in order to explanation one deck or another regional relation.It is understandable that these terms are intended to contain the different orientation of the device the orientation in being described in accompanying drawing.
Though first, second term such as grade can be used for explaining in this article various elements, parts, zone, layer and/or part, these elements, parts, zone, layer and/or part should be by these term restrictions.These terms only are used for an element, parts, zone, layer or part and another zone, layer or part are made a distinction.Therefore, under the situation that does not break away from the content that the utility model instructs, first element of hereinafter discussion, parts, zone, layer or part can be called as second element, parts, zone, layer or part.
The embodiment of the utility model is described with reference to sectional view explanation (these sectional views are schematic illustrations of the utility model embodiment).Therefore, for example, because manufacturing technology and/or tolerance be contemplated that the actual (real) thickness of layer can be different, and shown shape can change.The embodiment of the utility model should not be construed as the given shape in the zone that is defined in this paper explanation, but when comprising the form variations that for example causes by manufacturing.Because normal fabrication tolerance, zone illustrated or that be described as square or rectangle will have circular or curved characteristic usually.Therefore, the zone shown in the accompanying drawing comes down to schematically, and unexpectedly illustrates the accurate shape in the zone of device, and is not intended to limit the scope of the utility model.
Figure 4 and 5 illustrate an embodiment according to the LED packaging body 40 of the utility model, and it has peak emission skew or that tilt.It is understandable that each or most of picture element module all have the LED of a plurality of LED of being similar to packaging bodies 10 in the light-emitting diode display, and the peak emission of each all has similar skew.The accumulation of this skew causes the inclination through the image of display projection.
The manufacturing of conventional LED is normally known, and brief description only in this article.Known technology capable of using is made LED, and wherein a kind of suitable technology is to utilize metal-organic chemical vapor deposition equipment (MOCVD) to make.The layer of LED generally includes the active layer/zone between the epitaxial loayer that is clipped in the first and second opposite doping, and all these layers form on growth substrates successively.LED can be formed on the wafer, and subsequently by singleization, thereby be installed in the packaging body.It is understandable that growth substrates can keep as finally by the LED of singleization a part or can completely or partially remove growth substrates.
Will also be appreciated that also to comprise other layer and elements among the LED 42, include but not limited to resilient coating, nucleating layer, contact layer and current extending and light-extraction layer and element.Active region can comprise single quantum well (SQW), MQW (MQW), double-heterostructure or superlattice structure.Active region and doped layer can be made by the different materials system, and the preferable material system is an III nitride material system.The III group-III nitride is meant those semiconducting compounds that form between the III family element (being generally aluminium (Al), gallium (Ga) and indium (In)) of nitrogen and periodic table.This term also refers to ternary and quaternary compound, for example aluminium gallium nitride alloy (AlGaN) and aluminum indium nitride gallium (AlInGaN).In a preferred embodiment, doped layer is that gallium nitride (GaN) and active region are InGaN.In alternative embodiment, doped layer can be AlGaN, aluminum gallium arsenide (AlGaAs) or phosphorus aluminium arsenide gallium indium (AlGaInAsP).
Growth substrates can be made of a variety of materials, for example sapphire, carborundum, aluminium nitride (AlN), gallium nitride (GaN), and suitable substrate is the 4H polymorph of carborundum, though also can use other carborundum polymorphs, comprises 3C, 6H and 15R polymorph.Carborundum has some advantage, for example compares with sapphire, and the lattice of itself and III group-III nitride more matees, and obtains having higher-quality III group-III nitride film.Carborundum also has very high thermal conductivity, makes the gross output of the III nitride devices on the carborundum not receive the heat radiation restriction (for some devices that are formed on the sapphire, gross output is limited by the heat radiation of substrate) of substrate.Can be from the Cree Research of the Durham of North Carolina, Inc. obtains the SiC substrate, and the method for making them is described in detail in scientific literature and United States Patent (USP) 34861,4946547 and 5200022.
LED also can comprise the wire bond pads on conductive current expansion structure and the end face, and above-mentioned both can be processed by the electric conducting material of known method deposition capable of using.Some materials that can be used for these elements comprise Au, Cu, Ni, In, Al, Ag or its combination, and conductive oxide and transparent conductive oxide.Current-dispersing structure can comprise that with the conductive fingers on the latticed LED of being arranged in 42 said conductive fingers is spaced apart to strengthen the current expansion that enters into the LED end face from pad.In operation, the signal of telecommunication is applied to pad, and finger piece and the end face of the signal of telecommunication through current-dispersing structure expanded among the LED through above-mentioned wire-bonded.Current-dispersing structure is generally used among the LED that end face is the p type, but also can be used for the n type material.
The some or all of LED of this paper explanation can apply one or more fluorescent materials, and said fluorescent material absorbs the light of at least some LED, and the light of emission different wave length, make LED launch the combination from the light of LED and fluorescent material.In an embodiment according to the utility model, white light emission LED has the LED of the light in the emission blue wavelength spectrum, and fluorescent material absorbs some blue lights and launches gold-tinted again.The white light combination of LED emission blue light and gold-tinted.In other embodiments, the non-white light of led chip emission blue light and gold-tinted makes up, as described in the United States Patent(USP) No. 7213940.In certain embodiments, fluorescent material comprises commercially available YAG:Ce, also can utilize certainly by based on (Gd, Y)
3(Al, Ga)
5O
12: (for example, the Y of Ce system
3Al
5O
12: the conversion particle that Ce, fluorescent material YAG) process obtains FR wide yellow spectrum emission.Other yellow fluorescent substance that can be used for the white light emission led chip comprise: Tb
3-xRE
xO
12: Ce (TAG); RE=Y, Gd, La, Lu; Or Sr
2-x-yBa
xCa
ySiO
4: Eu.
The LED of red-emitting can comprise the direct LED structure and material from the active region red-emitting of permission.Replacedly, in other embodiments, red emission LED can comprise the LED that the fluorescent material of the light that is absorbed LED and red-emitting covers.Some fluorescent materials that are suitable for this structure can comprise: Lu
2O
3: Eu
3+(Sr
2-xLa
x) (Ce
1-xEu
x) O
4Sr
2-xEu
xCeO
4SrTiO
3: Pr
3+, Ga
3+CaAlSiN
3: Eu
2+And Sr
2Si
5N
8: Eu
2+
Multiple diverse ways capable of using applies the LED that is coated; Wherein a kind of suitable method is described among U.S. Patent Application Serial Number No.11/656759 and the No.11/899790; The title of above-mentioned two applications all is " a wafer scale fluorescent material painting method and the device that utilizes this method to make ", and with above-mentioned two applications all by reference mode be incorporated herein.Replacedly, can utilize additive method to apply LED, electrophoretic deposition (EPD) for example, suitable EPD method is described among the U.S. Patent application No.11/473089, and title is " the closed loop electrophoretic deposition of semiconductor device ", also incorporates it into this paper by reference.It is understandable that also can have a plurality of LED of different colours according to the LED packaging body of the utility model, one or more can launch white light.
As herein described pedestal (submount) can be formed by multiple different materials, and preferable material is an electric insulation, dielectric element for example, and inferior pedestal is between the led array and the parts back side.Inferior pedestal can comprise the pottery, aluminium nitride, carborundum of aluminium oxide for example or the polymeric material or the like of polyimides (polymide) and polyester for example.In one embodiment, dielectric material has high heat conductance, for example aluminium nitride and carborundum.In other embodiments, inferior pedestal can comprise the highly reflective material, and for example reflection pottery or the for example metal level of silver are to strengthen the light extraction from parts.In other embodiments; Inferior pedestal 42 can comprise printed circuit board (PCB) (PCB), aluminium oxide, sapphire or silicon or any other suitable material; For example T-Clad heat is covered (thermal clad) insulating substrate material, and it can be from Chanhassen, and the Bergquist company of Minn obtains.For PCB embodiment, dissimilar PCB capable of using, the for example printed circuit board (PCB) of standard FR-4 PCB, metal-cored PCB or any other type.
Refer again to Figure 4 and 5, in conventional LED packaging body, LED is installed near center or its of reflector lower surface.Usually along packaging body center line 49, it is perpendicular to reflector 44 in the end of sealant or the path outside the top from the peak emission of typical LED packaging body.The center of the lower surface of reflector is shown, this center, horizontal mid line 46 intersects with vertical centering control top-stitching 48.In conventional LED packaging body, install the as close as possible such position of led chip, and in this position, half of LED floor space is positioned on the horizontal mid line 46 and half is positioned at it down.Similarly, for vertical centering control top-stitching 48, LED 42 installs as close as possible such positions, and in this position, a side and half that half of LED floor space is positioned at vertical centering control top-stitching 48 are positioned at opposite side.But for LED packaging body 40, LED 42 is from the central spot skew of the bottom of reflector 44, and this skew causes the phase inverse migration of peak emission characteristic.In the embodiment shown, LED 42 is upwards skew in reflector 44, makes the most of of LED 42 or all be positioned on the horizontal mid line 46.This causes the peak emission characteristic to squint downwards.
With reference now to Fig. 6,, form 50 illustrates the upwards sampling of the variation of the skew of launching of different distance and the corresponding peaks of skew or inclination and vertical angle of view (V-V) and horizontal view angle (H-H) of LED in the reflector.These measure LED and the reflector that adopts stock size, certainly, it is understandable that, for the same offset distance, have the LED of different size or the packaging body of reflector and possibly experience different peak value emission inclination.For little skew to 0.01 millimeter (mm), the 0.5 degree skew of emission pattern experience.When LED upwards squinted 0.05mm, the skew of peak emission was 7.7 degree.This skew possibly caused by many factors, and one of them is exactly the skew along with LED, is changed to asymmetric field pattern.The LED skew that surpasses 0.05mm can further increase peak value, but is appreciated that the size according to reflector and sealant, arrives a point usually, and in this case, the variation of inclination will reduce along with the further skew of LED.
As further illustrating among Fig. 6, along with the upwards increase of skew, the minimum variation of vertical angle of view V-V experience.Horizontal view angle H-H also experiences minimum variation along with the increase of upwards skew, arrive about 0.05mm until skew, and at this some place, the visual angle possibly reduce.The point that reduces of horizontal view angle can be depending on different factors, and for example the size of LED is with respect to the reflector size.Fig. 7 is rectangle candela distribution Figure 55, and it illustrates peak emission skew 7.7 degree under the situation of wafer skew 0.05mm.
It is understandable that LED can squint on other directions, thereby cause peak emission on other directions, to squint.For example, the downward skew of the LED under the horizontal mid line can cause upwards skew of peak emission, and skew can cause peak emission to squint respectively to the right and left to the left or to the right.As stated, typical display can comprise a hundreds and thousands of or thousands of LED, and if each LED all demonstrate similar peak emission skew or tilt, then the image of display emission will experience respective offsets.
As stated, skew of the peak emission of this LED packaging body or inclination also can realize through other packaging body settings.Conventional LED packaging body possesses LED, reflector usually and at least some are sealed in the wire-bonded in the transparent material, and said transparent material is used to provide protection and/or is used for beam shaping.Fig. 8 and 9 illustrates another embodiment according to the LED packaging body 60 of the utility model, and it comprises LED 62, reflector 64 and the conductor leading framework 66 that is used for the signal of telecommunication is applied to LED62.Sealant 68 surrounds LED, reflector and most of wire-bonded, and is generally bullet shape.Sealant 68 can be shaped as the light extraction of enhancing from chip, and also protects chip and relevant contact structures (for example wire-bonded) to avoid the influence of physical damage or environmental factor (it possibly cause corrosion or degenerate).The end radiating portion of sealant 68 has the hemispherical lens shape usually, and it can strengthen the light extraction from packaging body, and in some cases, can provide output beam to be shaped.
As among Fig. 9 best shown in, sealant 68 has horizontal mid line 70 and vertical centering control top-stitching 72, sealant center line 73 is along the longitudinal axis of sealant.In conventional LED packaging body, be installed in the as close as possible level of reflector and the intersection point of vertical centering control top-stitching in the sealant 68, that is, and the central authorities of sealant.In LED packaging body 60, reflector 64 departs from the central authorities of sealant, and in the embodiment shown, and the whole or major part of upwards skew, so that reflector 64 all is positioned on the horizontal mid line 70.This can cause LED 62 and conductor leading framework (not shown) along with reflector 64 squints together.This skew that makes progress causes the corresponding skew downwards of the peak emission of LED packaging body 60.
Figure 10 comprises iso-candela Figure 80 of LED packaging body 60, and Figure 11 comprises rectangle candela distribution Figure 85 of LED packaging body 60, and LED packaging body 60 has the LED 62 of stock size, and it is installed near the center of reflector 64 of stock size.These illustrate the emission characteristics of LED packaging body 60, and the center 0.4mm that the reflector 64 of LED packaging body 60 departs from sealant 68 installs.This causes the respective offsets of LED 62, and causes the skew of about 15 degree of peak emission.If reflector 64 is installed in the top in the sealant 68, then the peak emission of packaging body 60 can experience downward skew or tilt 15 degree.
Embodiment is said like preceding text, and this skew can be caused by many factors, and one of them factor is exactly because the skew of reflector 64 causes packaging body 60 to produce asymmetric field pattern.Reflector further departs from the sealant center line and can cause the skew of peak emission to increase, but may arrive a point, is not so remarkable in this some place peak emission skew, and this is because receive the restriction of reflector and sealant.Similar to the aforementioned embodiment equally, reflector skew in different directions can cause the difference skew of peak emission or tilt, and the display image of its most LED packaging bodies with display of same offset or inclination skew also can take place or tilts.
Figure 12 and 13 illustrates another embodiment 90 of LED packaging body, and the LED packaging body 60 in itself and Fig. 8 and 9 is similar, and comprises LED 92, reflector 94 and be used for the signal of telecommunication is applied to the conductor leading framework 96 of LED 92.The major part that bullet shaped sealant 98 surrounds LED 92, reflector 94 and lead frame 96.As among Figure 13 best shown in; In the present embodiment; Reflector 94 and LED 92 thereof be positioned at the center or the longitudinal axis 100 places of sealant be positioned at said center or the longitudinal axis 100 near, be arranged in the intersection point place of level and vertical centering control top-stitching 102,104 or be positioned near this intersection point (as Figure 13 best shown in).As among Figure 12 best shown in, reflector 94 and lead frame 96 are in sealant 98 medium dips.That is, they are installed as the longitudinal axis 100 1 angles that depart from packaging body 90, this causes also departing from the longitudinal axis one angle from the main emission of the LED 92 of the reflector 94 of LED 92, and this angular dimension is usually corresponding to the angle of inclination.
Figure 14 and 15 is illustrated in the skew of the peak emission under the different rotary degree situation of LED packaging body 90.Figure 14 illustrates form 110, and this form 110 is illustrated in the output characteristic of LED packaging body 90 under the situation of reflector and lead frame rotation 0,3,5,10 and 15 degree.0 degree tilts, and peak value output emission is in 0 degree, or along the longitudinal axis of sealant.Peak emission squints along with each inclined degree of reflector and lead frame.Also show different vertical angle of view V-V and horizontal view angle H-H respectively.Figure 15 is rectangle candela distribution Figure 120, and it is illustrated in the peak emission waveform under the different rotary degree of reflector and lead frame.These waveforms are corresponding to the peakdeviation shown in the form of Figure 14.
Figure 16 illustrates another embodiment 130 according to the LED packaging body of the utility model, and the LED packaging body 90 in itself and Figure 12 and 13 is similar.LED packaging body 130 comprises LED 132, reflector 134 and lead frame 136, and they all are arranged in sealant 138.But in the present embodiment, reflector 134 tilts, but lead frame do not tilt, but along the longitudinal axis setting of sealant.The differing tilt angles of reflector 134 can cause peak value output emission that substantially the same skew takes place, shown in Figure 14 and 15.It is understandable that LED, reflector and lead frame can multitude of different ways be installed, tilt so that the peak emission according to the utility model to be provided.
Being further rotated of reflector in the LED packaging body 16 can cause peak emission further to tilt, and actual restriction is appeared by the constraint of sealant.The sealant of different size can be to the different constraints of offset generating.For example, in certain embodiments, the limit of reflector rotation limitation can reach 90 degree, and preferred range is the 10-30 degree.The light-emitting diode display that the LED that is comprised has the reflector of rotation same amount can provide the demonstration of corresponding skew or inclination to launch.
Skew according to the peak emission of the LED packaging body of the utility model also can produce through utilizing asymmetrical LED packaging body characteristic.Figure 17 illustrates an embodiment 150 according to the LED packaging body reflector of the utility model, and this reflector is asymmetric, and comprises bottom surface 152 and angled reflecting surface 154.This reflector can be similar to preceding text and be arranged in the LED packaging body with describing, and LED is installed in the bottom surface 152 of reflector 150.Also can comprise conductor leading framework and sealant mentioned above.Angled reflecting surface 154 is set to reflect the light that LED sends to the side, makes its expectation transmit direction to the LED packaging body that contribution arranged.
In conventional LED packaging body, the angled reflecting surface of reflector has roughly the same angle around the bottom surface.But for reflector 150, angled reflecting surface 154 has asymmetric property, shows as at least a portion and has different angles than other parts of reflecting surface.In the embodiment shown; The reflection angle at top 156 is different with the reflection angle of angled surperficial 154 remainder; This causes the light of the LED of 156 reflections from the top to be compared with the light that reflects from angled surperficial 154 remainder, is reflected with different angles.Light leaves top 156 with the reflection of steeper angle, and this causes peak emission to squint downwards, and this downward skew is on the direction opposite with top 156.In other embodiments, the skew of peak emission can be towards asymmetric part.
Figure 18 illustrates polar coordinates iso-candela Figure 160 of conventional LED packaging body, and this routine packaging body uses reflector 150, and LED is installed near the center of bottom surface 152.For the reflector packaging body that uses reflector 150, the LED packaging body demonstrates the downward peak emission skew of about 8 degree or tilts.
It is understandable that the different non-symmetrical features in the reflector can produce the difference skew of peak emission.Figure 19 illustrates another embodiment 170 according to the LED packaging body reflector of the utility model, and it also is asymmetric and comprises bottom surface 172 and angled reflecting surface 174.In the present embodiment, the left part 176 of reflecting surface 174 is steeper than the angle of the remainder of reflecting surface.This can so that left part 176 than the remainder of reflecting surface 174 light with steeper angle reflection LED, this can cause peak emission to squint to the right.It is understandable that the different piece of reflecting surface 174 can have different angles, and this causes the difference skew of LED packaging body peak emission.
Sealant also can have asymmetrical shape, launches with excursion peak.Figure 20 illustrates an embodiment according to the LED packaging body 180 of the utility model, and it comprises sealant 182, has reflector in it, is arranged in the LED and the lead frame (not shown) of reflector.In the embodiment shown, the radius of curvature of sealant with first lens component 186 and second lens component, 188, the first lens components 186 is different from the radius of curvature of second lens component 188.The asymmetry of lens component 186,188 causes the skew or the inclination of the peak emission of packaging body 180.This skew can be caused by different factors, and for example the light of LED experiences asymmetric reflection in sealant.This asymmetric reflection causes the respective offsets of peak emission.Figure 21 is polar coordinates iso-candela Figure 190, and it illustrates the skew of the peak emission that is caused by non-sym lens, and peakdeviation is about 8 degree.
Figure 22 illustrates the another embodiment 200 according to the LED packaging body of the utility model, and it comprises LED 202, lead frame 206 and the sealant 208 that is arranged in reflector 204.In this embodiment, sealant 208 forms around reflector 204 and lead frame 206 rotations.LED packaging body 200 can be installed in the display in a usual manner, and lead frame 206 makes sealant 208 and vertical direction at angle perpendicular to display.Sealant 208 can be in multiple different angles according to the utility model, and in one embodiment, said angle can be chosen to be complementary with possible display spectators sight line.In one embodiment, spectators' sight line can be from perpendicular to about 15 degree of the deviation in driction of display, but and the rotation off-vertical of sealant 208 in the direction of display 15 degree, thereby be complementary with this possible sight line.
Figure 23 is a rectangle candela distribution map 210, its be illustrated in sealant rotate about 15 the degree situation under, peak emission squint about 15 the degree.Figure 24 is a polar coordinates iso-plots 220, and it illustrates under the situation of sealant rotation 15 degree, the similar skew of peak emission.Skew can be caused by multiple factor, and for example lens light is vertically or asymmetricly by the sealant reflection and from the sealant outgoing, and the amount of vertical reflection and emission is controlled in the rotation of sealant usually.The difformity of sealant and size can cause the different gradients relevant with the rotation of sealant, and the shape of sealant and volume also can produce physical constraints to rotation amount.
It is understandable that, except those of preceding text explanations, also can provide many other that peak emission that skew is provided or tilts is set.A kind of such setting can be included in the display with an angle LED packaging body is installed, thereby the inclination of required light-emitting diode display peak emission is provided.Other embodiment can comprise the combination of the foregoing description.For example, reflector can rotate with the rotation of sealant.LED can squint in reflector along with the setting described in other embodiment (for example asymmetric reflector, asymmetric sealant, reflector rotation or the like) together.These only are some that can be used for realizing in the multiple combination that required peak emission tilts.
As stated, can be used for multiple different application according to the embodiment of the LED packaging body of the utility model, but be specially adapted in the light-emitting diode display, so that the peak emission pattern of inclination to be provided.Figure 25 illustrates an embodiment 240 of light-emitting diode display, and this display is installed on the spectators 244, and display 240 has and spectators 244 the visual angle or the peak emission pattern 246 of the more approaching coupling of sight line 248.
As stated, multiple distinct transmit device type and packaging body can be used in the bank indicator according to the utility model.In certain embodiments, can use surface mounted device, and Figure 26 illustrates an embodiment according to the conventional mounted on surface LED packaging body 300 of the utility model.It comprises the LED 302 that is installed to time pedestal 304, and reflector 306 is installed to time pedestal 304, in order to provide around the reflecting surface of LED 302.Reflector 306 typically is set to reflect the light from the LED side-emitted.Can electrically contact through the conductive trace on the inferior pedestal or through wire-bonded (not shown) and LED.Typically on LED, comprise sealant (not shown) or lens.Similar with the LED packaging body 40 (being illustrated in the Figure 4 and 5) of above-mentioned skew, in packaging body 300, LED302 is upwards skew in reflector 306, and this causes peak emission skew downwards or tilts.Same as the previously described embodiments equally, the bigger skew of LED can cause the bigger inclination of peak emission, and the physical constraints that exists the constraint by reflector to appear.
Figure 27 illustrates the another embodiment of mounted on surface LED packaging body 310, and it can be used for the peak emission to launch skew or to tilt in the display.This packaging body 310 comprises the LED 312 that is installed to time pedestal 314, and reflector 316 is around LED 312.LED 312 can be installed to reflector on LED 312 sealant or lens 318 cover.In the present embodiment, inferior pedestal 314 can have wedge-type shape, thus when being installed in it in display, its required angle that will tilt, thus skew produced from the peak emission of display.Conventional conductive trace on capable of using pedestal or conventional wire-bonded and LED electrically contact.
Figure 28 illustrates another mounted on surface LED packaging body 320, and it can be used for the peak emission to launch skew or to tilt in the display, and this packaging body also comprises LED 322, inferior pedestal 324 and reflector 326, and sealant or lens 328 are positioned on the LED 322.In the present embodiment, LED 322 is installed in the reflector 326 with an angle.In the present embodiment, LED 322 can be positioned at the base portion of reflector 326, and this base portion forms with an angle.Because the angle of LED 322 and reflector base portion, this causes the peak emission of LED packaging body 320 to squint.
Figure 29 illustrates the another embodiment according to the mounted on surface LED packaging body 330 of the utility model, and this embodiment does not have reflector.But LED 332 is installed to time pedestal 334, and cheese sealant or lens 336 are positioned on the LED.In the present embodiment, LED is installed on the center line 338 of time pedestal 334, and lens 336 are from upwards skew of center line 338.The peak emission skew that the skew of this sealant causes is similar to reference to the above-mentioned skew of discussing in the above at the LED packaging body 60 shown in Fig. 8 and 9.It is understandable that the embodiment of other mounted on surface LED packaging body can have reflector, and reflector and led chip install around the center line of LED packaging body, and lens alignment squints from the center.
Like the above embodiments, the skew of LED packaging body peak emission also can realize through using asymmetric reflector, encapsulation or sealant.Figure 30 illustrates an embodiment of mounted on surface LED packaging body 350, and it has reflector 352, and the reflection angle of its top reflecting surface 354 is different with the reflection angle of residual reflection face 356.The difference of this reflecting surface causes the peak emission of LED packaging body 350 to squint downwards.Figure 31 illustrates another embodiment according to the mounted on surface LED packaging body 370 of the utility model; It has asymmetric sealant or lens 372; Lens 372 have first and second lens components 374,376, and the radius of curvature of first 374 is different with the radius of curvature of second portion.This asymmetry causes the peak emission of LED packaging body 370 to squint.
Figure 32 illustrates another embodiment according to the mounted on surface LED packaging body 390 of the utility model, and it has the LED 392 of the base portion that is installed to reflector 394, and reflector 394 has reflective side walls 396.In the present embodiment, the each several part of reflector sidewall 396 can have differing heights, and for example the first reflector sidewall sections 398 has height x, and the second reflector part 340 has height y.In the present embodiment, x is greater than y, and this causes the peak emission of LED packaging body to tilt in the direction of the second reflector part 340.It is understandable that the difference of the height of reflector part changes the different angle of inclination that can cause peak emission, and reflector can have plural sidewall sections with differing heights.For example, in various embodiment, reflector can have three or more a plurality of sidewall sections with differing heights.
Figure 33 illustrates another embodiment according to the LED packaging body 410 of the utility model, and it also has the LED 412 of the base portion that is installed to reflector 414.In this embodiment, reflector 414 has reflector sidewall 416, and this sidewall 416 comprises the part with different angles of reflection.The reflecting surface of first reflecting part 418 with corresponding to the angled x in plane ° of the base portion of reflector, and the reflecting surface of second reflecting part 420 also with corresponding to the base portion of reflector 414 the angled y in plane °.In the present embodiment, x ° greater than y °, and this causes the inclination on the direction of second reflecting part 420.It is understandable that the difference of the angle of reflection of each reflector part changes the differing tilt angles that can cause peak emission, and reflector can have plural reflecting part with different angles of reflection.For example, in various embodiment, reflector can have three or more a plurality of sidewall sections with different angles of reflection.
Figure 34 illustrates the another embodiment according to the LED packaging body 430 of the utility model, and it also has the LED 432 of the base portion that is installed to reflector 434.In the present embodiment, reflector 434 has reflector sidewall 436, and this sidewall comprises the part with different asymmetrical shapes.In the embodiment shown, reflector 434 can comprise first reflecting part 438 with curved reflection surface and have the second surperficial reflecting part 440 of vertical reflection.According to the inclination of required peak emission angle, the reflector sidewall can comprise the different piece with different asymmetry.In the embodiment shown, this asymmetry causes peak emission to tilt in the direction of first reflecting part 438.In various embodiment, reflector can comprise three or more a plurality of sidewall sections with different asymmetry, tilts thereby produce required peak emission.
Figure 35 illustrates another embodiment according to the LED packaging body 450 of the utility model, and the LED packaging body 300 shown in itself and Figure 26 is similar.It comprises the LED 452 that is installed to time pedestal 454, and reflector 456 is installed to time pedestal 454, thus around LED 452 the cremasteric reflexes surface.In the present embodiment, on inferior pedestal, comprise transmit direction mark 458, the direction that its emission that packaging body 450 is shown is tilted.This mark participates in making the light-emitting diode display that utilizes LED packaging body 450, makes to discern incline direction easily.This provide required towards unanimity and reliable localization, thereby provide the required emission of display to tilt.It is understandable that these marks can have multiple different form and can be positioned at a plurality of diverse locations on the packaging body, include but not limited to reflector, sealant or LED.Importantly, said mark is passed on the direction that the emission of specific LED packaging body is tilted.
It is understandable that, except the foregoing description, also can adopt many other mounted on surface settings that the skew or the inclination of required peak emission are provided.Will also be appreciated that can be with the characteristics combination of different packaging body embodiment, thereby realizes required peak emission skew.For example, cause certain skew asymmetric sealant can with the arbitrary embodiment combination with the difform reflector that causes launching inclination.Have available many different combinations according to the utility model, and it is understandable that, content disclosed in the utility model contains each in these combinations.
The various combination that also can comprise the LED packaging body according to the display of the utility model.That is, the LED packaging body in the different displays needn't all have the same characteristic features that causes launching inclination.In certain embodiments, not every packaging body all has peak emission, and some packaging bodies are next luminous along the vertical line of packaging body center line or packaging body or display.In other embodiments, the peak emission that different LED packaging bodies can have on the different directions in the display tilts, and in certain embodiments, the different colours in the light-emitting diode display pixel can be launched along different directions.
LED packaging body according to the utility model can be used in the multiple different illumination application except that light-emitting diode display, and particularly those use from the application of the high output light source off-vertical of small size axle emission.Some application during these are used include but not limited to, street lamp, building lamp, family expenses and office lighting, display illumination and back lighting.
Though the utility model has been described, has also possibly been had other forms with reference to some preferable configuration.Therefore, spirit of the utility model and scope should not be limited to above-mentioned form.
Claims (19)
1. a LED packaging body is characterized in that, comprising:
Plastic casing;
Reflector is arranged in said plastic casing, is provided with LED in the said reflector, and wherein said LED departs from the center of said reflector and places.
2. LED packaging body according to claim 1 is characterized in that, said LED packaging body further comprises the sealant that covers said reflector at least in part.
3. LED packaging body according to claim 2 is characterized in that, said LED packaging body further comprises the lens that cover said reflector at least in part.
4. a LED packaging body is characterized in that, said LED packaging body comprises:
Plastic casing;
Reflector is arranged in said plastic casing;
The sealant that is installed in the LED in the said reflector and covers said reflector at least in part, said reflector depart from the center line of said LED packaging body and place.
5. a LED packaging body is characterized in that, comprising:
Plastic casing;
Reflector is arranged in said plastic casing;
The sealant that is installed in the LED in the said reflector and covers said reflector at least in part, said sealant depart from the center line of said LED packaging body and place.
6. a LED packaging body is characterized in that, comprising:
Plastic casing;
Reflector is arranged in said plastic casing;
The sealant that is installed in the LED in the said reflector and covers said reflector at least in part, said reflector is rotated with respect to the center line of said packaging body.
7. LED packaging body according to claim 6 is characterized in that said sealant comprises lens.
8. LED packaging body according to claim 6 is characterized in that, said LED packaging body further comprises the conductor leading framework that is arranged in said sealant at least in part, and wherein said lead frame tilts.
9. LED packaging body according to claim 6; It is characterized in that; Said LED packaging body further comprises the conductor leading framework that is arranged in said sealant at least in part, and wherein said sealant and said lead frame are arranged on the center line of said LED packaging body.
10. a LED packaging body is characterized in that, comprising:
Plastic casing;
Reflector is arranged in said plastic casing;
Be installed in the LED in the said reflector, wherein said reflector is asymmetric.
11. LED packaging body according to claim 10 is characterized in that said reflector comprises angled reflecting surface.
12. LED packaging body according to claim 10 is characterized in that, at least one part of the reflector sidewall of said reflector has the height of the remainder that is different from said reflector sidewall.
13. LED packaging body according to claim 10 is characterized in that, at least one reflecting surface of said reflector has the reflection angle different portions.
14. LED packaging body according to claim 10 is characterized in that, at least one reflecting surface of said reflector has the curvature different portions.
15. a LED packaging body is characterized in that, comprising:
Plastic casing;
Reflector is arranged in said plastic casing;
The sealant that is installed in the LED in the said reflector and covers said reflector at least in part, wherein said sealant is asymmetric.
16. LED packaging body according to claim 15 is characterized in that, the asymmetric part with different curvature that comprises of said sealant.
17. a LED packaging body is characterized in that, comprising:
Plastic casing;
Reflector is arranged in said plastic casing;
Be installed in the LED in the said reflector; And
Cover the sealant of said reflector at least in part, said sealant is rotated with respect to the center line of said LED packaging body.
18. LED packaging body according to claim 17 is characterized in that, said reflector is positioned on the center line of said packaging body and perpendicular to the center line of said LED packaging body.
19. LED packaging body according to claim 17 is characterized in that, said LED packaging body further comprises the conductor leading framework on the center line that is positioned at said LED packaging body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201870776U CN202134569U (en) | 2010-07-06 | 2011-05-27 | LED package |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNPCT/CN2010/001009 | 2010-07-06 | ||
| PCT/CN2010/001009 WO2011003277A1 (en) | 2009-07-06 | 2010-07-06 | Light emitting diode display with tilted peak emission pattern |
| CN2011201870776U CN202134569U (en) | 2010-07-06 | 2011-05-27 | LED package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134569U true CN202134569U (en) | 2012-02-01 |
Family
ID=45523331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201870776U Expired - Lifetime CN202134569U (en) | 2010-07-06 | 2011-05-27 | LED package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202134569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104335347A (en) * | 2012-05-23 | 2015-02-04 | 克利公司 | Tilted emission LED array |
-
2011
- 2011-05-27 CN CN2011201870776U patent/CN202134569U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104335347A (en) * | 2012-05-23 | 2015-02-04 | 克利公司 | Tilted emission LED array |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210220 Address after: 516029 No.38, Hechang 6th Road East, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee after: CREE HUIZHOU SOLID STATE LIGHTING Co.,Ltd. Address before: 516003 TCL Industrial Park, 21 Yunshan East Road, Jiangbei, Huizhou, Guangdong Patentee before: Cree Huizhou Opto Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |