CN104676442A - Intelligent illuminating COB (Chip On Board) LED (Light Emitting Diode) light source device - Google Patents

Intelligent illuminating COB (Chip On Board) LED (Light Emitting Diode) light source device Download PDF

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Publication number
CN104676442A
CN104676442A CN201510070136.4A CN201510070136A CN104676442A CN 104676442 A CN104676442 A CN 104676442A CN 201510070136 A CN201510070136 A CN 201510070136A CN 104676442 A CN104676442 A CN 104676442A
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blue
light
region
emitting region
green
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CN201510070136.4A
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CN104676442B (en
Inventor
李家声
李宗涛
汤勇
吴宇璇
陈永辉
陈丘
邓文君
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South China University of Technology SCUT
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South China University of Technology SCUT
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
    • F21S10/023—Lighting devices or systems producing a varying lighting effect changing colors by selectively switching fixed light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/483—Containers
    • H01L33/486—Containers adapted for surface mounting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements
    • H01L33/60—Reflective elements

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Led Device Packages (AREA)

Abstract

The invention discloses an intelligent illuminating COB (Chip On Board) LED (Light Emitting Diode) light source device, which comprises red, blue and green light emitting areas, wherein the red, blue and green light emitting areas are discretely distributed at interval, i.e., a green light emitting area is distributed at interval between red and blue light emitting areas; the green light emitting area is distributed around the red and blue light emitting areas to form integrally interconnected areas; an area above the red, blue and green light emitting areas consists of plane lenses and curved lenses on the plane lenses, and the curved lenses are located above a blue light emitting area. The interconnected areas form closely adjacent RGB all-color areas, any adjacent red and blue light emitting areas are a public reused area and the fewest RGB areas are used to form the most all-color areas. Since the blue light emitting area uses the curved lenses with a reflector respectively, the mistaken excitation of green fluorescent powder in the green light emitting area caused by a blue light chip installed therein is substantially avoided, the improvement of the color purity of the blue light emitting area is realized and the color range of the RGB COB device is increased.

Description

The LED light source component of a kind of intelligent lighting COB
Technical field
The present invention relates to LED light source component technical field, particularly relate to the LED light source component of a kind of intelligent lighting COB.
Background technology
RGB device can realize random color and freely convert, Based Intelligent Control can be carried out according to sight, it is very important intelligent lighting device, the RGB device that the many employings of implementation of current intelligent lighting device are discrete is formed by patch combination, discrete device is a luminescent device, particular color needs adjacent RGB device mixed light to be formed, if the dispersion of RGB device is comparatively opened, easily causes color separation.COB LED component is a kind of face luminous LED device, can improve the uniformity of illuminating effect, be widely used in white-light illuminating field, and the product of intelligent lighting COB device extremely lacks.On the one hand, intelligent lighting COB device needs the RGB light-emitting zone utilizing device inside different to be combined into different colors, the number energy efficient combination increasing RGB light-emitting zone goes out abundanter color, wish but then to minimize cost, one of them important approach reduces RGB light-emitting zone number exactly.In addition, the excitation of light-emitting zone is also an important evaluation index, and therefore, rational intelligent lighting COB device packaging method effectively can increase the colour gamut of intelligent lighting COB device and save production cost simultaneously.
Summary of the invention
The object of the invention is to the shortcoming and defect overcoming above-mentioned prior art, the LED light source component of a kind of intelligent lighting COB is provided.Utilize and sow discord light-emitting zone spaced apart and overall interconnected light-emitting zone is combined into more full-color region, utilize reflector and compound shape lens simultaneously, avoid outside blue light directly and by mistake exciting indirectly to green emitting phosphor.
The present invention is achieved through the following technical solutions:
A LED light source component of intelligent lighting COB, comprises the emitting red light region 1 of distribution on substrate 9, blue-light-emitting region 2, green emitting region 3;
Emitting red light region 1, the distribution of blue-light-emitting region 2 discrete interval, be namely intervally distributed with a green emitting region 3 between emitting red light region 1 and blue-light-emitting region 2;
Green emitting region 3, around being distributed in emitting red light region 1 and blue-light-emitting region 2 around, forms overall interconnection region;
With compound shape lens above emitting red light region 1, blue-light-emitting region 2, green emitting region 3, these compound shape lens are made up of the toroidal lens 11 on planar lens 10 and planar lens 10, and toroidal lens 11 is positioned at the top in blue-light-emitting region 2.
Each adjacent emitting red light region 1 and blue-light-emitting region 2 are all public multiplexing regions; Emitting red light region 1, blue-light-emitting region 2, green emitting region 3 are combined and are formed full-color region.
Described blue-light-emitting region 2 and green emitting region 3 are provided with blue chip 15, and difference is that the blue chip 15 in green emitting region 3 adopts green emitting phosphor to encapsulate, and the blue-light excited fluorescent material sent by blue chip 15 sends green glow.
Be provided with reflector 4 bottom described blue-light-emitting region 2, the effect of reflector 4 is light by mistake the exciting the green emitting region 3 Green fluorescent material be adjacent avoiding the direct outgoing of its blue chip 15.
The height of described reflector should meet:
h ≈ b · r a 2 - r 2 - - - ( 1 )
In formula, h is reflector height; A, b are respectively the distance at blue chip 15 center in the center of green emitting phosphor and reflector distance blue-light-emitting region 2; R is the height of green emitting phosphor.
Blue-light-emitting region 2 outgoing blue light by mistake the exciting green emitting region 3 Green fluorescent material that described toroidal lens 11 causes for avoiding being totally reflected by air boundary, the shape of toroidal lens 11 should meet:
E = ∫ - θ max θ max cos θdθ ∫ - 90 90 cos θdθ - - - ( 2 )
R = ( d · tan θ max ) 2 + ( d - c ) 2 - - - ( 3 )
In formula, E expects the percentage of emergent light energy in blue-light-emitting region 2, its percentage is 60% ~ 95%; θ is emergent light angle; θ maxfor maximum without total reflection emergent light angle; D is the distance of planar lens 10 upper surface to substrate 9 upper surface; R, c are respectively the radius in toroidal lens 11 center of circle and the distance with substrate 9 upper surface thereof.
The present invention, relative to prior art, has following advantage and effect:
The LED light source component of this intelligent lighting COB, the full-color region of RGB that multiple emitting red light region 1, blue-light-emitting region 2, green emitting region 3 are closely adjacent can be formed, the emitting red light region 1 of arbitrary neighborhood and blue-light-emitting region 2 are all public multiplexing regions, and minimum RGB region so just can be utilized to form maximum full-color regions.
The LED light source component of this intelligent lighting COB, blue-light-emitting region 2 has reflector structure, be designed with toroidal lens above it simultaneously, the existence of reflector and toroidal lens can avoid blue chip by mistake the exciting fluorescent material in green emitting region 3 of wherein installing substantially, the excitation in blue light emitting region can be improved, increase the colour gamut of RGB COB, be conducive to the improvement of illuminating product quality of colour.
Accompanying drawing explanation
Fig. 1 is the top view of the LED light source component of intelligent lighting COB of the present invention.
Fig. 2 is Fig. 1, A-A generalized section.
Fig. 3 is Fig. 2, B-B generalized section.
Fig. 4 is that the another kind of the LED light source component of intelligent lighting COB of the present invention is red, blue, green emitting areas combine mode schematic diagram.
Fig. 5 is the structural representation one of the LED light source component of intelligent lighting COB of the present invention.
Fig. 6 is the structural representation two of the LED light source component of intelligent lighting COB of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is more specifically described in detail.
Embodiment
As shown in Figures 1 to 6.The LED light source component of a kind of intelligent lighting COB of the present invention, comprises the emitting red light region 1 of distribution on substrate 9, blue-light-emitting region 2, green emitting region 3;
Emitting red light region 1, the distribution of blue-light-emitting region 2 discrete interval, be namely intervally distributed with a green emitting region 3 between emitting red light region 1 and blue-light-emitting region 2;
Green emitting region 3, around being distributed in emitting red light region 1 and blue-light-emitting region 2 around, forms overall interconnection region;
With compound shape lens above emitting red light region 1, blue-light-emitting region 2, green emitting region 3, these compound shape lens are made up of the toroidal lens 11 on planar lens 10 and planar lens 10, and toroidal lens 11 is positioned at the top in blue-light-emitting region 2.
Each adjacent emitting red light region 1 and blue-light-emitting region 2 are all public multiplexing regions; Emitting red light region 1, blue-light-emitting region 2, green emitting region 3 are combined and are formed full-color region, achieve and realize maximum full-color regions with minimum RGB region.
Red light chips 13 is installed in described emitting red light region 1, blue-light-emitting region 2 and green emitting region 3 are provided with blue chip 15, difference is that the blue chip 15 in green emitting region 3 adopts green emitting phosphor to encapsulate, and the blue-light excited fluorescent material sent by blue chip 15 sends green glow.
As shown in Figure 5,6.The full-color region of RGB that emitting red light region 1, blue-light-emitting region 2 and green emitting region 3 are closely adjacent, in level and vertical direction, the emitting red light region 1 of arbitrary neighborhood and blue-light-emitting region 2 are all public multiplexing regions, and minimum RGB region so just can be utilized to form maximum full-color regions.
Be provided with reflector 4 bottom described blue-light-emitting region 2, the effect of reflector 4 is light by mistake the exciting the green emitting region 3 Green fluorescent material be adjacent avoiding the direct outgoing of its blue chip 15.
The height of described reflector should meet:
h ≈ b · r a 2 - r 2 - - - ( 1 )
In formula, h is reflector height; A, b are respectively the distance at blue chip 15 center in the center of green emitting phosphor and reflector distance blue-light-emitting region 2; R is the height of green emitting phosphor.The shape of reflector can be rectangle, circle and conical round table etc., but its height must meet the design formula of above-mentioned reflector height.
Blue-light-emitting region 2 outgoing blue light by mistake the exciting green emitting region 3 Green fluorescent material that described toroidal lens 11 causes for avoiding being totally reflected by air boundary, the shape of toroidal lens 11 should meet:
E = ∫ - θ max θ max cos θdθ ∫ - 90 90 cos θdθ - - - ( 2 )
R = ( d · tan θ max ) 2 + ( d - c ) 2 - - - ( 3 )
In formula, E expects the percentage of emergent light energy in blue-light-emitting region 2, its percentage is 60% ~ 95%; θ is emergent light angle; θ maxfor maximum without total reflection emergent light angle; D is the distance of planar lens 10 upper surface to substrate 9 upper surface; R, c are respectively the radius in toroidal lens 11 center of circle and the distance with substrate 9 upper surface thereof.
By die bond technique, blue chip is arranged on blue-light-emitting region 2 and the green emitting region 3 of substrate, red chip is arranged on light-emitting zone 1; Chip electrical connection is realized by gold thread bonding technology.
The encapsulation of green emitting phosphor realizes by methods such as wafer scale coating, spraying, free dispensing formings.
As mentioned above, just the present invention can be realized preferably.
Embodiments of the present invention are not restricted to the described embodiments; other are any do not deviate from Spirit Essence of the present invention and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (6)

1. a LED light source component of intelligent lighting COB, is characterized in that: comprise the emitting red light region (1) of the upper distribution of substrate (9), blue-light-emitting region (2), green emitting region (3);
Emitting red light region (1), the distribution of blue-light-emitting region (2) discrete interval, be namely intervally distributed with a green emitting region (3) between emitting red light region (1) and blue-light-emitting region (2);
Green emitting region (3), around being distributed in emitting red light region (1) and blue-light-emitting region (2) around, forms overall interconnection region;
Emitting red light region (1), blue-light-emitting region (2), green emitting region (3) top are with compound shape lens, these compound shape lens are made up of the toroidal lens (11) on planar lens (10) and planar lens (10), and toroidal lens (11) is positioned at the top of blue-light-emitting region (2).
2. the LED light source component of intelligent lighting COB according to claim 1, is characterized in that, each adjacent emitting red light region (1) and blue-light-emitting region (2) are all public multiplexing regions; Emitting red light region (1), blue-light-emitting region (2), green emitting region (3) combination form full-color region.
3. the LED light source component of intelligent lighting COB according to claim 1, it is characterized in that, described blue-light-emitting region (2) and green emitting region (3) are provided with blue chip (15), difference is that the blue chip (15) of green emitting region (3) adopts green emitting phosphor (14) encapsulation, and the blue-light excited fluorescent material (14) sent by blue chip (15) sends green glow.
4. the LED light source component of intelligent lighting COB according to claim 3, it is characterized in that described blue-light-emitting region (2) bottom is provided with reflector (4), the effect of reflector is light by mistake the exciting green emitting region (3) the Green fluorescent material be adjacent avoiding the direct outgoing of its blue chip (15).
5. the LED light source component of intelligent lighting COB according to claim 4, is characterized in that, the height of described reflector should meet:
h ≈ b · r a 2 - r 2 - - - ( 1 )
In formula, h is reflector height; A, b are respectively the center of green emitting phosphor and the distance at reflector distance blue-light-emitting region (2) interior blue chip (15) center; R is the height of green emitting phosphor.
6. the LED light source component of intelligent lighting COB according to any one of claim 1 to 5, it is characterized in that, blue-light-emitting region (2) outgoing blue light by mistake the exciting green emitting region (3) Green fluorescent material that described toroidal lens (11) causes for avoiding being totally reflected by air boundary, the shape of toroidal lens (11) should meet:
E = ∫ - θ max θ max cos θdθ ∫ - 90 90 cos θdθ - - - ( 2 )
R = ( d · tan θ max ) 2 + ( d - c ) 2 - - - ( 3 )
In formula, E is the percentage of expection emergent light energy in blue-light-emitting region (2), and its percentage is 60% ~ 95%; θ is emergent light angle; θ maxfor maximum without total reflection emergent light angle; D is the distance of planar lens (10) upper surface to substrate (9) upper surface; R, c are respectively the radius in toroidal lens (11) center of circle and the distance with substrate (9) upper surface thereof.
CN201510070136.4A 2015-02-10 2015-02-10 A kind of LED light source component of intelligent lighting COB Active CN104676442B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135349A (en) * 2015-07-31 2015-12-09 宁波恒剑光电科技有限公司 Full-color LED lamp with WIFI function and control method for full-color LED lamp

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JP2014154644A (en) * 2013-02-06 2014-08-25 Stanley Electric Co Ltd Led package and light-emitting device including the same
JP2014154641A (en) * 2013-02-06 2014-08-25 Stanley Electric Co Ltd LED package
CN203963633U (en) * 2014-07-21 2014-11-26 广州市添鑫光电有限公司 A kind of high power CO B polychrome one LED light source
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WO2011136623A2 (en) * 2010-04-30 2011-11-03 엘코라이팅 주식회사 Cob-type led package for use in a lamp
CN102289069A (en) * 2010-06-09 2011-12-21 普雷斯姆股份有限公司 Display screen with low-index region surrounding phosphors
KR20130070285A (en) * 2011-12-19 2013-06-27 서울반도체 주식회사 Chip on board type light emtting device
US20130207137A1 (en) * 2012-02-15 2013-08-15 Polar-Lights Opto Co., Ltd. COB-Typed LED Light Board
CN102767760A (en) * 2012-07-06 2012-11-07 广州市鸿利光电股份有限公司 Straight-down type liquid crystal television backlight module
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135349A (en) * 2015-07-31 2015-12-09 宁波恒剑光电科技有限公司 Full-color LED lamp with WIFI function and control method for full-color LED lamp
CN105135349B (en) * 2015-07-31 2019-01-22 宁波恒剑光电科技有限公司 Full-color LED lamp and its control method with WIFI function

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