CN208923189U - A kind of structure of the tunable color LED light module based on light-emitting phosphor - Google Patents
A kind of structure of the tunable color LED light module based on light-emitting phosphor Download PDFInfo
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- CN208923189U CN208923189U CN201821839008.7U CN201821839008U CN208923189U CN 208923189 U CN208923189 U CN 208923189U CN 201821839008 U CN201821839008 U CN 201821839008U CN 208923189 U CN208923189 U CN 208923189U
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- liquid crystal
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Abstract
The utility model relates to the improvement of lighting device, more particularly to a kind of structure of the tunable color LED light module based on light-emitting phosphor, including luminescence chip, fluorescent powder coat, it further include liquid crystal drive layer, the luminescence chip, liquid crystal drive layer and fluorescent powder coat are set gradually, the liquid crystal drive layer separates fluorescent powder coat with luminescence chip, the liquid crystal drive layer is identical with fluorescent powder coat shape and alignment is bonded to each other, it is improved by the structure to principle of luminosity and LED light module, in a limited space, improve heat insulation, improve the firmness of fluorescent powder, promote the stability of entire luminescent system, a kind of color LED illumination scheme of stable modulated color is provided.
Description
Technical field
The utility model relates to lighting area more particularly to a kind of luminous moulds of tunable color LED based on light-emitting phosphor
The structure of block.
Background technique
Light emitting diode, abbreviation LED.LED can be used as indicator light, or composition text or number in circuit and instrument
Display.Gallium arsenide diode glows, gallium phosphide diode green light, silicon carbide diode Yellow light-emitting low temperature, gallium nitride diode hair
Blue light.Because chemical property divides Organic Light Emitting Diode OLED and inorganic light-emitting diode LED again.LED light imitates prominent, energy-saving ring
It protects, the long-life, becomes the ideal chose instead of conventional road lamp light source, so that it is used widely in road lighting field, not only
In this way, realizing that the RGBLED of colorful light-emitting is shown outdoors and ad decoration is obtained based on tri- kinds of chips of current-modulation RGB
It is widely applied.In great power LED work, most electric energy is converted into thermal energy, causes chip temperature to rise, photo electric
It can decline.But RGBLED causes color mixture ratio to deviate because the rate of decay of each luminescence chip and service life are different,
So color distortion is easy to produce, if wherein a luminescence chip is broken or deep fades, color occur for some lamp chip
Coloured silk distortion can seem quite obvious across the screen, still could not thoroughly solve at present.
Existing analogous technical comes from patent CN103557457A.Patent mainly describes a kind of remote excitation fluorescent powder LED
Lamps and lanterns are related to field of illumination lamp technology, are mainly made of reflector, blue-ray LED, fluorescent powder and PC cover, blue-ray LED and fluorescence
Powder separation, fluorescent powder are attached on PC cover, and PC cover is that transparent PC covers.The utility model, which is claimed, to be separated due to fluorescent powder with light source,
Fluorescent powder temperature is lower and transfer efficiency improves, and reduces the fluorescent powder rate of decay, entire LED illumination System reliability is higher, light
It declines smaller, but in practical applications, fluorescent powder and light source simple separation, centre are air, and heat still can be easy to transmit, heat-insulated
Property it is insufficient, fluorescent powder is simply attached on reflector, is easy to fall off or deforms, and then influences luminous efficiency and illumination effect；
Only it is merely simple separation, has no other bright spots and function, it is innovative relatively simple.
Utility model content
The knot for the tunable color LED light module based on light-emitting phosphor that the purpose of this utility model is to provide a kind of
Structure is improved by the structure to principle of luminosity and LED light module, in a limited space, is improved heat insulation, is improved fluorescent powder
Firmness, promote the stability of entire luminescent system, provide a kind of stable modulated color color LED shine side
Case.Fluorescent powder and luminescence chip are separated using liquid crystal drive layer, and supporting role has been risen to phosphor powder layer, is guaranteeing the core that shines
On the basis of the radiating efficiency of piece, the stability of phosphor powder layer is improved, and then improves the stable luminescence of entire light-emitting lamp
Property, overcoming original technology only is merely that fluorescent powder is coated on PC lampshade, and heat dissipation effect does not have the good of the utility model, and
And the technological deficiency for be easy to causeing fluorescent powder to fall off.
In order to achieve the above objectives, the utility model adopts the following technical solution: including luminescence chip, fluorescent powder coat,
It further include liquid crystal drive layer, the luminescence chip, liquid crystal drive layer and fluorescent powder coat are set gradually, the liquid crystal drive layer
Fluorescent powder coat is separated with luminescence chip, the liquid crystal drive layer is identical with fluorescent powder coat shape and alignment is mutually pasted
It closes.
Further, the liquid crystal drive layer includes the first glass substrate and the second glass substrate；The first glass base
Piece and the second glass substrate both ends are respectively provided with the first polarizer and the second polarizer；First electrode is set to described first
Second glass substrate side of glass substrate；Second electrode is set to first glass of second glass substrate
Substrate side；The first electrode and second electrode are by the corresponding conductive film shape for being plated on the first glass substrate and the second glass substrate
At；Liquid crystal layer is enclosed between first glass substrate and the second glass substrate；Liquid crystal display drive circuit, it is described to being supplied to
The application voltage of liquid crystal layer is controlled, and the luminous intensity of the liquid crystal of each corresponding region is driven.
Further, the material of the film is tin indium oxide, and first glass substrate and the second glass substrate are also plated
There is alignment agent.
Further, the fluorescent powder coat includes the first groove, the second groove and third groove, and described first is recessed
Red fluorescence powder, green emitting phosphor and blue colour fluorescent powder is respectively coated in slot, the second groove and third groove.
Preferably, first groove, the second groove and third groove engrave out corresponding groove shapes with photoetching technique,
And the coating of corresponding fluorescent powder is got on.
Further, the liquid crystal layer includes the first liquid crystal area, the second liquid crystal area and third liquid crystal area, first liquid crystal
Area, the second liquid crystal area and third liquid crystal area are identical as first groove, the second groove and third groove shapes respectively and are aligned
It is bonded to each other.
It further, further include reflector, the light direction of the luminescence chip and/or fluorescent powder coat is described in
Reflector, so that the light that the luminescence chip, fluorescent powder coat issue projects after being reflected by the reflector.
Further, the luminescence chip is the LED chip that can issue high-energy photons.
Preferably, the luminescence chip is ultraviolet leds chip.
Preferably, the fluorescent powder coat is made using the material of transparent high transparency.
Utility model has the advantages that 1. are separated fluorescent powder and luminescence chip using liquid crystal drive layer, and to fluorescence
Bisque has played supporting role, on the basis of guaranteeing the radiating efficiency of luminescence chip, improves the stability of phosphor powder layer, in turn
The stability of photoluminescence of entire light-emitting lamp is improved, and original technology is only merely that fluorescent powder is coated on PC lampshade, is dissipated
Thermal effect does not have the good of the utility model, and fluorescent powder is be easy to cause to fall off；
2. using the light transmittance of different liquid crystal drive layer region control light and then in specific fluorescent powder coating layer region
Fluorescent powder excited, realize controllable color change, after fluorescent powder, some LED it is photochromic can become it is softer or
It is bright-coloured, with adapt to it is different apply needs, and the prior art can't realize controllable coloured silk with the fluorescent powder luminous LED that is excited
Color is shown.
3. fluorescent powder ratio debugging link can be omitted, at present since the light intensity for the light that is excited switchs to circuit control
Cumbersome fluorescent glue proportion adjustment can only be relied on, color needed for LED is issued just is able to achieve, simplifies the production procedure step of LED.
4. it is luminous to use single-shot optical chip excitated fluorescent powder to carry out, under the premise of toning can be achieved, overall picture occurs
The probability of color distortion substantially reduces.(assuming that the probability one of light decay normal luminous does not occur for each chip in same amount of time
Sample is set as A, wherein A < 1, then is A in the probability of single-shot optical chip normal luminous, and RGBLED normal luminous probability is A3).
5. can use the high advantage of certain wave band LED luminous efficiencies to prepare the LED of its all band, to improve the wave
The luminous efficiency of section, such as when needing to prepare the LED of 470nm, what may be prepared is that range is very wide from 455nm to 480nm
LED, LED of the emission wavelength at both ends can only dispose or be discarded with less expensive price, and use fluorescent powder can will
These so-called " waste products " are converted to color required for us and are utilized.
6. the characteristics of probability of color distortion occurs using the utility model single pixel, can will be based on light-emitting phosphor
The structure of tunable color LED light module is applied on traffic signal indicating lamp, makes the long-life signal designation of various colors
Lamp.
Detailed description of the invention
It is attached that FIG. 1 is a schematic structural view of the utility model；
Attached drawing 2 is the utility model fluorescent powder coat schematic diagram；
Attached drawing 3 is the utility model liquid crystal drive layer schematic diagram.
1. luminescence chip, 2. fluorescent powder coats, 3. liquid crystal drive layers, 4. reflectors, 21. first grooves, 22.
Second groove, 23. third grooves, 31. first glass substrates, 32. second glass substrates, 33. first polarizers, 34.
Two polarizers, 35. first electrodes, 36. second electrodes, 37. liquid crystal layers.
Specific embodiment
Embodiment 1:
A kind of tunable color LED light module based on light-emitting phosphor as shown in Figs. 1-3 of the utility model embodiment 1
Structure, including luminescence chip 1, fluorescent powder coat 2 further include liquid crystal drive layer 3, the luminescence chip 1, liquid crystal drive layer
3 and fluorescent powder coat 2 set gradually, the liquid crystal drive layer 3 separates fluorescent powder coat 2 and luminescence chip 1, the liquid
Crystalline substance driving layer 3 is identical with 2 shape of fluorescent powder coat and alignment is bonded to each other.Using liquid crystal drive layer 3 by fluorescent powder coat 2
It is separated with luminescence chip 1, and is bonded to each other and is packaged with fluorescent powder coat 2, supporting role has been risen to phosphor powder layer, protected
On the basis of the radiating efficiency for demonstrate,proving luminescence chip 1, the stability of fluorescent powder coat 2 is improved, and then improves entire shine
The stability of photoluminescence of module.
The liquid crystal drive layer 3 includes the first glass substrate 31 and the second glass substrate 32；First glass substrate 31
The first polarizer 33 and the second polarizer 34 are respectively provided with 32 both ends of the second glass substrate；First electrode 35 is set to institute
State 32 side of the second glass substrate of the first glass substrate 31；Second electrode 36 is set to second glass substrate 32
31 side of the first glass substrate；The first electrode 35 and second electrode 36 are plated on the first glass substrate 31 and the by corresponding
The good transparent and conductive film of two glass substrates 32 is formed；Liquid crystal layer 37 is enclosed in first glass substrate 31 and second
Between glass substrate 32；Liquid crystal display drive circuit controls the application voltage for being supplied to the liquid crystal layer 37, to being applied to each liquid
The voltage of 37 part of crystal layer carries out mutually independent control, drives the luminous intensity of the liquid crystal of each corresponding region.
The material of the film is tin indium oxide, and first glass substrate 31 and the second glass substrate 32 are also coated with orientation
Agent.Liquid crystal layer 37 is clipped between the first glass substrate 31 and the second glass substrate 32, the first glass substrate 31 and the second glass base
The both ends of piece 32 are equipped with the first polarizer 33 and the second polarizer 34, on 32 surface of the first glass substrate 31 and the second glass substrate
It is first coated with layer of conductive film and is used as electrode use, this film is usually tin indium oxide, abbreviation ITO.Then having ITO's again
First glass substrate 31 and the second glass substrate plate alignment agent on 32 surface, so that liquid crystal is specific and be parallel to glass along one
The direction on surface arranges.Become linearly polarized light after incident light passes through polarizing film, in External Electrical Field, by line polarisation by turning round
The optically-active characteristic of bent nematic liquid crystal determines that at outgoing, checking bias slice is mutually perpendicular to polarizer slice, and having rotated 90 ° of polarised light can
To pass through, therefore different grayscale may be implemented by changing the size of electrode voltage in light transmission state.
The luminescence chip 1 of the shorter light of wavelength can be issued, the light issued is controlled by liquid crystal drive layer 3, liquid crystal drive layer 3
Different zones block carries out selective light transmission or completely opaque, and then the fluorescence of deexcitation corresponding region to the light of different zones
Powder to reach the transmitting light light intensity for removing control different colours by the exciting light light intensity for controlling every kind of fluorescent powder, and then reaches
The purpose of colour mixture.
Embodiment 2:
The present embodiment is substantially the same manner as Example 1, and difference place is:
The fluorescent powder coat 2 includes the first groove 21, the second groove 22 and third groove 23, first groove
21, red fluorescence powder, green emitting phosphor and blue colour fluorescent powder is respectively coated in the second groove 22 and third groove 23.
Further, first groove 21, the second groove 22 and third groove 23 are engraved out accordingly with photoetching technique
Groove shapes, and the coating of corresponding fluorescent powder is got on.
Preferably, the fluorescent powder coat 2 is made using the material of transparent high transparency
Further, the liquid crystal layer 37 includes the first liquid crystal area, the second liquid crystal area and third liquid crystal area, first liquid
Crystalline region, the second liquid crystal area and third liquid crystal area respectively with 23 shape phase of first groove 21, the second groove 22 and third groove
Same and alignment is bonded to each other.
First groove 21, the second groove 22 and third groove 23 are engraved using photoetching technique, and formation surface is uniform, are applied
It is more uniform to cover fluorescent powder.The liquid on the first liquid crystal area, the second liquid crystal area and third liquid crystal area is controlled by liquid crystal display drive circuit
Crystalline region domain carries out the luminous intensity of control red light, green light and blue light, generates different colors to carry out mixing, realizes
Controllable color change.Since the light intensity for the light that is excited switchs to circuit control, fluorescent powder ratio debugging link be can be omitted, in life
Cumbersome fluorescent glue proportion adjustment process is subtracted during producing.
Embodiment 3:
The present embodiment is substantially the same manner as Example 2, and difference place is:
It further include reflector 4, the light direction of the luminescence chip 1 and/or fluorescent powder coat 2 is towards the reflector
4, so that the light that the luminescence chip 1, fluorescent powder coat 2 inspire projects after being reflected by the reflector 4.Luminescence chip
1 light issued is concentrated after being reflected by reflector 4 and is projected, and light source conversion ratio can be improved, and makes to show that reflector 4 vertically goes out
Angular is more concentrated, optical homogeneity high unity.
The luminescence chip 1 is the LED chip that can issue high-energy photons
Preferably, the luminescence chip 1 is ultraviolet leds chip.
The utility model proposes signal lamps, including shell and one kind described in any of the above embodiments to be based on fluorescence
The structure of the luminous tunable color LED light module of powder.The spy of the probability of color distortion occurs using the utility model single pixel
Point can make the long-life signal lamp of various colors.
Certainly, the above is only the preferred embodiment of the utility model, and the use scope of the utility model is not limited with this,
Therefore it is all made in the utility model principle it is equivalent change should be included in the protection scope of the utility model.
Claims (9)
1. a kind of structure of the tunable color LED light module based on light-emitting phosphor, including luminescence chip (1), fluorescent powder apply
Coating (2), it is characterised in that: it further include liquid crystal drive layer (3), the luminescence chip (1), liquid crystal drive layer (3) and fluorescent powder
Coat (2) is set gradually, and the liquid crystal drive layer (3) separates fluorescent powder coat (2) and luminescence chip (1), the liquid
Crystalline substance driving layer (3) is identical with fluorescent powder coat (2) shape and alignment is bonded to each other.
2. a kind of structure of tunable color LED light module based on light-emitting phosphor according to claim 1, feature
Be: the liquid crystal drive layer (3) includes the first glass substrate (31) and the second glass substrate (32)；First glass substrate
(31) and the second glass substrate (32) both ends are respectively provided with the first polarizer (33) and the second polarizer (34)；First electrode
(35), it is set to the second glass substrate (32) side of first glass substrate (31)；Second electrode (36), setting
In the first glass substrate (31) side of second glass substrate (32)；The first electrode (35) and second electrode (36)
It is formed by the corresponding conductive film for being plated on the first glass substrate (31) and the second glass substrate (32)；Liquid crystal layer (37) is enclosed
Between first glass substrate (31) and the second glass substrate (32)；Liquid crystal display drive circuit, to being supplied to the liquid crystal layer
(37) application voltage is controlled, and the luminous intensity of the liquid crystal of each corresponding region is driven.
3. a kind of structure of tunable color LED light module based on light-emitting phosphor according to claim 2, feature
Be: the material of the film is tin indium oxide, and first glass substrate (31) and the second glass substrate (32) are also coated with and take
To agent.
4. a kind of structure of tunable color LED light module based on light-emitting phosphor according to claim 2, feature
Be: the fluorescent powder coat (2) includes the first groove (21), the second groove (22) and third groove (23), and described first
Red fluorescence powder, green emitting phosphor and blue colour fluorescent powder is respectively coated in groove (21), the second groove (22) and third groove (23).
5. a kind of structure of tunable color LED light module based on light-emitting phosphor according to claim 4, feature
Be: the liquid crystal layer (37) includes the first liquid crystal area, the second liquid crystal area and third liquid crystal area, first liquid crystal area, second
Liquid crystal area and third liquid crystal area it is identical as first groove (21), the second groove (22) and third groove (23) shape respectively and
Alignment is bonded to each other, and first liquid crystal area, the second liquid crystal area and third liquid crystal area are described to being supplied to by liquid crystal display drive circuit
The application voltage of liquid crystal layer (37) is controlled.
6. the structure of -5 any a kind of tunable color LED light modules based on light-emitting phosphor according to claim 1,
It is characterized by also including reflector (4), the light direction direction of the luminescence chip (1) and/or fluorescent powder coat (2)
The reflector (4), so that the light that the luminescence chip (1), fluorescent powder coat (2) issue is anti-by the reflector (4)
It is projected after penetrating.
7. a kind of structure of tunable color LED light module based on light-emitting phosphor according to claim 6, feature
Be: the luminescence chip (1) is the LED chip that can issue high-energy photons.
8. a kind of structure of tunable color LED light module based on light-emitting phosphor according to claim 7, feature
Be: the fluorescent powder coat (2) is made using the material of transparent high transparency.
9. a kind of signal lamp, it is characterised in that: be based on including shell and one kind according to any one of claims 1 to 8
The structure of the tunable color LED light module of light-emitting phosphor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821839008.7U CN208923189U (en) | 2018-11-08 | 2018-11-08 | A kind of structure of the tunable color LED light module based on light-emitting phosphor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821839008.7U CN208923189U (en) | 2018-11-08 | 2018-11-08 | A kind of structure of the tunable color LED light module based on light-emitting phosphor |
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| Publication Number | Publication Date |
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| CN208923189U true CN208923189U (en) | 2019-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821839008.7U Withdrawn - After Issue CN208923189U (en) | 2018-11-08 | 2018-11-08 | A kind of structure of the tunable color LED light module based on light-emitting phosphor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273581A (en) * | 2018-11-08 | 2019-01-25 | 深圳市晶锐光电有限公司 | A kind of structure of the tunable color LED light module based on light-emitting phosphor |
-
2018
- 2018-11-08 CN CN201821839008.7U patent/CN208923189U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273581A (en) * | 2018-11-08 | 2019-01-25 | 深圳市晶锐光电有限公司 | A kind of structure of the tunable color LED light module based on light-emitting phosphor |
| CN109273581B (en) * | 2018-11-08 | 2023-10-31 | 广东晶锐半导体有限公司 | Structure of adjustable color LED light-emitting module based on fluorescent powder light emission |
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 518107 3-4 / F, building a, mingfengda Industrial Park, Baoshan Road, Tianliao community, Yutang street, Guangming District, Shenzhen City, Guangdong Province Patentee after: Guangdong Jingrui Semiconductor Co.,Ltd. Address before: 5th Floor, Building 3, Hongfa Innovation Park, Jiuwei Zhoushi Road, Xixiang Street, Baoan District, Shenzhen, Guangdong Province, 518101 Patentee before: SHENZHEN JINGRUI PHOTOELECTRIC CO.,LTD. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190531 Effective date of abandoning: 20230720 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190531 Effective date of abandoning: 20230720 |