CN103151344A - LED (Light Emitting Diode) high-development white light emitting device for common illumination - Google Patents
LED (Light Emitting Diode) high-development white light emitting device for common illumination Download PDFInfo
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- CN103151344A CN103151344A CN2013100648359A CN201310064835A CN103151344A CN 103151344 A CN103151344 A CN 103151344A CN 2013100648359 A CN2013100648359 A CN 2013100648359A CN 201310064835 A CN201310064835 A CN 201310064835A CN 103151344 A CN103151344 A CN 103151344A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
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Abstract
The invention discloses an LED (Light Emitting Diode) high-development white light emitting device for common illumination. The LED high-development white light emitting device comprises a substrate with a concave part, at least two LED light-emitting elements arranged in the concave part of the substrate, and a connecting circuit, and is characterized in that the at least two LED light-emitting elements are respectively LED chips for emitting blue light and LED chips for emitting red light; a light blending region and a light changing region are arranged in the concave space above the light-emitting chips from bottom to top, so that a dual-layer structure of changing light after blending light is formed; and the light changing region is made of resin doped with yellow fluorescent powder.
Description
Technical field
The present invention relates to a kind of LED photophore, the high colour developing of the LED that especially a kind of general lighting is used white light emitting device.
Background technology
Short due to long service life, start-up time that the LED illuminating lamp has, energy-saving effect is remarkable, there is no ultra-violet radiation and the advantages such as secondary environmental pollution, safety in utilization height, is approved widely, has become the main flow of following energy-saving lamp.
In existing LED white-light emitting technology, two kinds of combining forms have appearred.
One, with blue led chip and the White LED light-emitting device that can send yellow YAG fluorescent material composition, be one of major way of LED white light, this light-emitting device utilizes blue LED light to excite the YAG fluorophor always, utilizes the mixed light of blue light and sodium yellow to emit white light.This light-emitting device has become the technology of the extensive employing of White LED light source owing to can reducing power consumption, can easily carrying out the driving control of LED.But the white color reproducibility (color rendering index) that this luminescent method sends is poor, is not suitable in the market, and the ground such as show room use.
Its two, blue led, green LED, red LED are combined into the light-emitting device of the three-wavelength of colour mixture, form and be used to send white light from the mixed light of LED.Although this device can reduce power consumption, the wide characteristics of color indication range, but the light that this hybrid light source sends from each LED cavity is difficult to closely mixed, at least need simultaneously 3 LED driven respectively in a light source, therefore drive and control more complicated.
But the color rendering index of the white light that the above-mentioned the first constructional device that is commonly used at present sends is on the low side.And another light-emitting device of follow-up proposition also exists one to control complexity, and the problem that the colour mixture consistency is poor is so also be commonly used in light fixture.
Chinese patent literature CN10054398 " light-emitting device ", disclose a kind of LED light-emitting device that can produce multicolour in addition, and two kinds of versions that adopt in its practical application have following characteristics:
One, by arranging on the sapphire substrate of insulating properties two are in and respectively are provided with a light-emitting component 2a in the recess that the adjacent position arranges and 2b forms two independent light emitting sources that encapsulated respectively by light-transmissive resin, finally emit light by these two independent light emitting sources, intersect to mix to produce at place and mix light.As follows in its principle of implementing change light: by fluorescent material is mixed at least one employing in two light-emitting components in light-transmissive resin, the processing of mixing colours is mixing two kinds of different color light sources subsequently, obtains desired final light source.
They are two years old, by a LED light-emitting component and the 2nd LED light-emitting component in same recess of being in that arranges on same substrate, mix fluorescent material by at least one employing in two light-emitting components in light-transmissive resin equally, the processing of mixing colours, subsequently two kinds of different color light sources are being mixed, obtaining desired final light source.
Above-mentioned these two kinds of public technologies, its final purpose is in order to obtain heterogeneous light light-emitting device, so its maximum is characterised in that: first mix colours separately, utilize subsequently place to carry out mixed light.And in order to obtain polychromatic light, so the design of the control circuit of this light source also adopt three the tunnel independently control circuit controlled respectively.
Obviously, above-mentioned light-emitting device adopts the technical scheme that three-way power is controlled to control complexity, and the facility difficulty, do not belong to the general lighting technical field in single lamp light source, should belong to the decorative lighting technology.
Summary of the invention
Purpose of the present invention is intended to: propose the high colour developing of the LED white light emitting device that a kind of general lighting is used.Wish to accomplish the technique simple possible, can obtain high-quality white light source again simultaneously.
The high colour developing of the LED that this general lighting is used white light emitting device, comprise substrate with recess, be arranged at least two LED light-emitting components in the substrate recess, and connecting circuit, its feature exists: at least respectively be provided with one in described substrate recess and launch respectively the LED chip of blue light and the LED chip of red-emitting; And be positioned at luminescence chip with the recess space of upper part, be set to mixed light district and become the light district from bottom to top, consist of thus the double-decker that becomes light after first mixed light; Described change light district is made of the resin that is mixed with yellow fluorescent powder.
Described mixed light district is positioned at the substrate recess and is become the bottom place of light district's sealing isolation by top; Or the filling area for being consisted of by the transparent resin adhesive encapsulation.
Described change light district is into being made of yellow fluorescent powder and transparent resin compound.
The lampshade that described change light district consists of into the compound by yellow fluorescent powder and transparent resin.
Described lampshade is tabular or arc shape cover plate or cover body.
Described lampshade is made base-material with epoxy resin or the silica gel of liquid condition, with yellow fluorescent powder as compound, and press the proportioning formation of adding 0.3-10 weight portion yellow fluorescent powder in the base-material of every 100 weight portions and make the fluorescent lamp shade liquid charging stock, subsequently by injection moulding process or directly forming the fluorescent lamp shade of required moulding after natural moulding in liquid charging stock injection die cavity, cure and demold.
Described connecting circuit adopts the single circuit with LED light-emitting component serial or parallel connection form to consist of.
The high colour developing of the LED white light emitting device that this general lighting that proposes according to above technical scheme is used, be designed to the elementary cell of first mixed light, rear change light due to the single luminescence unit of the light-emitting device that will be consisted of by the LED luminescence chip, therefore can fully use the natural mixed light discoloration of red, blue dual-colored LED luminescence chip, the district just becomes mixed light with two kinds of primitive color light colour mixtures at mixed light, be mixed with again subsequently the further discoloration of effect of the resin bed of yellow fluorescent powder through the upper strata, form the white illumination light source of the required high color rendering index (CRI) of general lighting.This mixed light, change photo structure can not only obtain the white light of the high colour developing of high-quality, and the leakage that stops blue light is also had good effect.
Description of drawings
Fig. 1 basic structure schematic diagram of the present invention (red, blue chip);
Fig. 2 is the invention structural representation that is mixed with yellow fluorescent powder and transparent resin adhesive mixture mixed light district;
The another kind of basic structure schematic diagram (red, blue chip) of Fig. 3 the present invention;
Fig. 4 is the circuit diagram that is connected in series of this device;
Fig. 5 is the circuit diagram that is connected in parallel of this device.
In figure: 1-substrate 2-fluorescent material becomes the encapsulation of photosphere 3-mixed light district 4-LED light-emitting component a 5-LED light-emitting component b 6-wire 7-power supply 8-transparent adhesive tape and distinguishes.
Embodiment
The high colour developing of LED that this general lighting is as shown in Figure 1 used white light emitting device comprises substrate with recess, is arranged at least two LED light-emitting components in the substrate recess, and connecting circuit, and its feature exists:
Described two LED light-emitting components are respectively the LED chip of emission blue light and the LED chip of red-emitting; Be positioned at the recess space of luminescence chip with the upper part, be set to mixed light district 3 from bottom to top and become light district 2, consisting of thus the double-decker that becomes light after first mixed light; Described change light district is made of the resin that is mixed with yellow fluorescent powder.Make this light-emitting device form multilayer by this structure and become photo structure: first consist of the mixed light district on the top near emitting led chip.
This mixed light district can take two kinds of versions: one, the resin bed that directly is mixed with fluorescent material by topmost is divided into a separate space with it, makes a plurality of LED light-emitting components 4 in bottom, 5 complete the regional (see figure 1) of mixed light in this is isolated space (mixed light district 3).
Its two, be to encapsulate all LED light-emitting components and settle this light- emitting component 4,5 part substrate recess with transparent resin glue, formed the mixed light zone (seeing the mixed light district 3 in Fig. 2) of all LED light-emitting components by transparent resin glue.
Described change light district consists of (seeing the change light district 2 in Fig. 1, Fig. 2) into the compound that is mixed with yellow fluorescent powder and transparent resin.
The serve as reasons transparent resin compound that is mixed with yellow fluorescent powder of described change light district 2 consists of lampshade (seeing the change light district 2 in Fig. 3).
Described lampshade is tabular or arc shape cover plate or cover body.Be the shot-light light-emitting device when lampshade is dull and stereotyped state, is when the hood-like attitude of arc-shaped lamp and has the ball shape light-emitting device.
Described lampshade is made base-material with epoxy resin or the silica gel of liquid condition, with yellow fluorescent powder as compound, and press the proportioning formation of adding 0.3-10 weight portion yellow fluorescent powder in the base-material of every 100 weight portions and make the fluorescent lamp shade liquid charging stock, subsequently by injection moulding process or directly forming the fluorescent lamp shade of required moulding after natural moulding in liquid charging stock injection die cavity, cure and demold.
The purpose of said structure is: allow the LED light-emitting component of all red-emittings and blue light form the illumination mixed light by mixed light zone.Then, light source after allowing all process through mixed light becomes photosphere 2(by the fluorescent material that is encapsulated in substrate recess topmost and sees Fig. 1 and Fig. 2), perhaps through being arranged on substrate top, by the alternating light cover (see figure 3) discoloration that yellow fluorescent powder and epoxy resin (or silica gel) compound are made, give out the ordinary white illumination light of high-quality to place.
Described recess is built-in with a plurality of red, blue, dichromatism LED light-emitting components.
Adopt purposes red, blue, two look LED chips, be to guarantee just to obtain having the light source of white light character in mixed light zone.
Described connecting circuit adopts the single supply circuit with LED light-emitting component serial or parallel connection form to consist of (seeing Fig. 4, Fig. 5).Adopt the benefit of this kind single supply circuit to be, relatively simple for structure, control ratio is more convenient.
Claims (9)
1. the high colour developing of the LED white light emitting device used of a general lighting, comprise substrate with recess, be arranged at least two LED light-emitting components in the substrate recess, and connecting circuit, its feature exists: described at least two LED light-emitting components are respectively the LED chip of emission blue light and the LED chip of red-emitting; Be positioned at the recess space of luminescence chip with the upper part, be set to the mixed light district from bottom to top and become the light district, consisting of thus the double-decker that becomes light after first mixed light; Described change light district is made of the resin that is mixed with yellow fluorescent powder.
2. the high colour developing of the LED that uses of a kind of general lighting as claimed in claim 1 white light emitting device is characterized in that: described mixed light district is positioned at the substrate recess and becomes by top the bottom place that light district's sealing is isolated.
3. the high colour developing of the LED that uses of a kind of general lighting as claimed in claim 1 white light emitting device is characterized in that: described mixed light district is comprised of the transparent resin adhesive encapsulation.
4. the high colour developing of the LED that uses of a kind of general lighting as claimed in claim 1 white light emitting device is characterized in that: described change light district consists of into the compound that is mixed with yellow fluorescent powder and transparent resin.
5. the high colour developing of the LED that uses of a kind of general lighting as claimed in claim 1 white light emitting device is characterized in that: the described change light district compound that is mixed with yellow fluorescent powder and transparent resin of serving as reasons consists of lampshade.
6. the high colour developing of the LED that uses of a kind of general lighting as claimed in claim 1 white light emitting device, it is characterized in that: described lampshade is tabular or semi-spherical shape cover plate or cover body.
7. the high colour developing of the LED that uses of a kind of general lighting as claimed in claim 1 white light emitting device, it is characterized in that: described lampshade is made base-material with epoxy resin or the silica gel of liquid condition, with yellow fluorescent powder as compound, and press the proportioning formation of adding 0.3-10 weight portion yellow fluorescent powder in the base-material of every 100 weight portions and make the fluorescent lamp shade liquid charging stock, subsequently by injection moulding process or directly forming the fluorescent lamp shade of required moulding after natural moulding in liquid charging stock injection die cavity, cure and demold.
8. the high colour developing of the LED that uses of a kind of general lighting as claimed in claim 1 white light emitting device is characterized in that: being equipped with in described recess, red, blue, two look LED light-emitting components.
9. the high colour developing of the LED that uses of a kind of general lighting as claimed in claim 1 white light emitting device, it is characterized in that: described connecting circuit adopts the single circuit with LED light-emitting component serial or parallel connection form to consist of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100648359A CN103151344A (en) | 2013-03-01 | 2013-03-01 | LED (Light Emitting Diode) high-development white light emitting device for common illumination |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100648359A CN103151344A (en) | 2013-03-01 | 2013-03-01 | LED (Light Emitting Diode) high-development white light emitting device for common illumination |
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| CN103151344A true CN103151344A (en) | 2013-06-12 |
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| CN2013100648359A Pending CN103151344A (en) | 2013-03-01 | 2013-03-01 | LED (Light Emitting Diode) high-development white light emitting device for common illumination |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108936913A (en) * | 2018-09-06 | 2018-12-07 | 天狼联盟材料科技研究（广东）有限公司 | A kind of color luminous artificial tree for nighttime landscape |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201041808Y (en) * | 2006-11-09 | 2008-03-26 | 明达光电(厦门)有限公司 | White lighting device |
| CN102278641A (en) * | 2011-08-25 | 2011-12-14 | 上海亚明灯泡厂有限公司 | White light-emitting diode (LED) lamp and method for generating high color rendering white light |
| CN202598208U (en) * | 2012-04-24 | 2012-12-12 | 厦门多彩光电子科技有限公司 | White light light-emitting diode (LED) with adjustable color-temperature and color-rendering index |
-
2013
- 2013-03-01 CN CN2013100648359A patent/CN103151344A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201041808Y (en) * | 2006-11-09 | 2008-03-26 | 明达光电(厦门)有限公司 | White lighting device |
| CN102278641A (en) * | 2011-08-25 | 2011-12-14 | 上海亚明灯泡厂有限公司 | White light-emitting diode (LED) lamp and method for generating high color rendering white light |
| CN202598208U (en) * | 2012-04-24 | 2012-12-12 | 厦门多彩光电子科技有限公司 | White light light-emitting diode (LED) with adjustable color-temperature and color-rendering index |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108936913A (en) * | 2018-09-06 | 2018-12-07 | 天狼联盟材料科技研究（广东）有限公司 | A kind of color luminous artificial tree for nighttime landscape |
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Application publication date: 20130612 |