CN210897276U - Color-changeable planar light source module - Google Patents
Color-changeable planar light source module Download PDFInfo
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- CN210897276U CN210897276U CN201922480754.2U CN201922480754U CN210897276U CN 210897276 U CN210897276 U CN 210897276U CN 201922480754 U CN201922480754 U CN 201922480754U CN 210897276 U CN210897276 U CN 210897276U
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Abstract
The utility model discloses a changeable colour plane light source module relates to plane light source module technical field. The utility model discloses a LED light source module, including base plate, outline, LED chip, primary excitation layer, secondary excitation layer, leaded light layer, substrate surface has the circuit board layer, the outline is fixed on the base plate, form the installation cavity of chip between outline and the base plate, a plurality of LED chip spaced sets up on the base plate, and with circuit board layer electricity is connected, and partial LED chip's the outside is provided with primary excitation layer, is formed with the leaded light layer in the outline, through the leaded light layer will LED chip and primary excitation layer seal, the leaded light layer is used for carrying out the photochromic mixture with every LED chip that gives out light alone, the outside on leaded light layer is formed with the secondary excitation layer, and the LED chip excites primary excitation layer and forms a photochromic, excites the secondary excitation layer once again and obtains another photochromic. The light source module can realize various light color spectrums and has a wide color gamut range.
Description
Technical Field
The utility model relates to a LED light source technical field especially relates to a changeable colour plane light source module.
Background
The LED lamp is more and more widely used in the field of general lighting because of its advantages of energy saving, environmental protection, high conversion efficiency, etc., but the conventional LED lamp is generally a fixed color temperature when leaving the factory, and if the lighting requirements of different color temperatures are to be met in different occasions and at different times, the LED lamp of another color temperature is often required to be properly replaced, which increases the cost and is inconvenient to install. The color-variable planar light source can realize color temperature in a full color domain from cold white to warm white, and can meet the requirements of different spectrums in a specific lighting field, such as: plant lighting, medical lighting, and the like. The light source of the variable color plane is assembled with the matched lamp, and the intelligent control circuit is added, so that the adjustment of light color and brightness in a full color domain and a full spectrum can be realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem how to provide a variable color plane light source module that can realize multiple photochromic spectrum, color gamut wide range.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a color-variable planar light source module, characterized by: including base plate, outline, LED chip, primary excitation layer, leaded light layer, secondary excitation layer, substrate surface has the circuit board layer, outline (2) are fixed on the base plate, form the installation cavity of chip between outline and the base plate, a plurality of LED chip spaced sets up on the base plate, and with circuit board layer electricity is connected, and partial LED chip's the outside is provided with primary excitation layer, is formed with the leaded light layer in the outline, through the leaded light layer will LED chip and primary excitation layer seal, the leaded light layer is used for carrying out the photochromic mixture with every LED chip of giving out light independently, the outside on leaded light layer is formed with the secondary excitation layer, and the LED chip excites primary excitation layer and forms a photochromic, excites the secondary excitation layer once again and obtains another photochromic.
The further technical scheme is as follows: the substrate is an aluminum substrate, a glass fiber plate, a copper substrate or a ceramic substrate, the LED substrate uses high-temperature-resistant and high-reflectivity white ink or transparent glass glaze, and the LED chip is fixed on the circuit board layer.
The further technical scheme is as follows: the LED chip is a blue light chip, a red light chip, a green light chip, an ultraviolet chip, an infrared chip or a multicolor combined chip.
The further technical scheme is as follows: the LED chip is fixed on the substrate in a flip-chip mode.
The further technical scheme is as follows: the LED chip is fixed on the substrate in a normal installation mode, and is electrically connected with the circuit board layer on the substrate through a metal lead.
The further technical scheme is as follows: the primary excitation layer is a hemispherical or approximately hemispherical glue dot and is formed by mixing fluorescent powder and silica gel.
The further technical scheme is as follows: every two LED chips in the length direction are a unit, and the LED chips with the primary excitation layers in each unit are arranged at intervals.
The further technical scheme is as follows: every three LED chips in the length direction are a unit, primary excitation layers are formed on the two LED chips which are arranged relatively close to the left, and the primary excitation layers on the two LED chips are different in spectrum.
The further technical scheme is as follows: every three LED chips in the length direction are a unit, and a primary excitation layer is formed on one LED chip which is arranged close to the left relatively.
The further technical scheme is as follows: in the width direction, the spectrums of the primary excitation layers on the same column of LED chips are the same or different.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the LED color-mixing light source module is characterized in that a primary excitation layer is arranged on part of the LED chips in the light source module, light guide layers are arranged on the rest of the LED chips and the LED chips with the primary excitation layers, a secondary excitation layer is arranged on the outer side of the light guide layers, one spectral light color is formed by the part of the LED chips through the primary excitation layer, the light guide layers and the secondary excitation layers, the other spectral light color is formed by the rest of the LED chips through the light guide layers and the secondary excitation layers, light color spectrums in various color gamut can be realized after color mixing, and the color gamut range is wide.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a first structural schematic diagram (LED chip front mounting) of a light source module according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram (LED chip flip) of the light source module according to the embodiment of the present invention;
fig. 3 is a schematic diagram of a chip excited phosphor of a first structure of a light source module according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a chip excited phosphor of a third structure of a light source module according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a chip excited phosphor of a fourth structure of a light source module according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a chip excited phosphor of a second structure of a light source module according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a fifth structure of a chip excited phosphor of a light source module according to an embodiment of the present invention;
wherein: 1. a substrate; 2. an outer frame; 3. a primary excitation layer; 4. a light guide layer; 5. a secondary excitation layer; 6. a metal lead; 7. positively installing an LED chip; 8. and (3) flip-chip mounting the LED chip.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, an embodiment of the present invention discloses a color-changeable planar light source module, including: the LED light source comprises a substrate 1, a normally-installed LED chip 7, a metal lead 6, an outer frame 2, a primary excitation layer 3, a light guide layer 4 and a secondary excitation layer 5. The substrate can be an aluminum substrate, and certainly, the substrate can also be a glass fiber plate, a copper substrate and a ceramic substrate, and the ink is white ink (or transparent glass glaze) with high temperature resistance and high reflectivity. The positively-mounted blue light chips are fixed on the substrate 1, and the chips are regularly arranged and distributed in groups, at least two groups of chips are distributed; metal leads connect the chip to the circuitry on the substrate 1. The fluorescent powder is mixed with the silica gel according to the proportion of a specific proportion to form fluorescent powder glue, part of the chips excite the fluorescent powder glue according to the specific proportion to form a primary excitation layer 3, and further the light color with specific coordinates is formed, and the light color can be in any light color point in a full color domain. The shape of the primary excitation layer is a hemispherical or approximately hemispherical glue dot. The rest blue light chips (red light, green light, ultraviolet, infrared and the like chips can be used, or a multi-color chip combination) do not excite the primary excitation layer. A layer of transparent adhesive is packaged in the frame to form a light guide layer 4, and the light guide layer 4 is used for mixing light colors of each point light source which independently emits light, so that the surface of the light source emits light uniformly and is free of glare. The fluorescent powder is mixed with the silica gel according to a specific proportion to form fluorescent powder glue, and the fluorescent powder glue is coated on the light guide layer to form the secondary excitation layer 5. The blue light chip excites the primary excitation layer to form a light color to obtain the light color of a specific coordinate, and excites the secondary excitation layer again to obtain another light color.
Further, in an embodiment of the present invention, as shown in fig. 3, the chip adopts a positive die bonding manner, and in the length direction, every two LED chips are a unit, and a primary excitation layer is formed on the outer side of the LED chip disposed close to the right, wherein the blue chip having the primary excitation layer 3 forms a warm color temperature after passing through the primary excitation layer 3, the light guide layer 4, and the secondary excitation layer 5, and the color temperature range is 2200-; the blue light chip without the primary excitation layer 3 forms cold color temperature after passing through the light guide layer 4 and the secondary excitation layer 5, and the color temperature range is 5500-7000K. The color mixing can realize the whole color temperature in the 2200K-7000K color gamut.
Furthermore, the spectrums of the first excitation layer and the second excitation layer can be changed, wherein a blue light chip with the primary excitation layer 3 forms a light color with a red spectrum through the primary excitation layer 3, the light guide layer 4 and the secondary excitation layer 5, and a blue light chip without the primary excitation layer 3 forms another light color with a blue spectrum through the light guide layer 4 and the secondary excitation layer 5. The color mixing can realize the light color spectrum from the blue light spectrum to the red light spectrum.
Further, in an embodiment of the present invention, as shown in fig. 4, the chip adopts a positive die bonding manner, and in the length direction, every three LED chips are a unit, and a primary excitation layer is formed on the outer sides of two LED chips disposed near the left, and the primary excitation layer in each unit is made of a different material, wherein the blue chip having the primary excitation layer 3 forms more than two light color coordinates after passing through the primary excitation layer 3, the light guide layer 4, and the secondary excitation layer 5; the blue light chip without the primary excitation layer 3 forms a specific light color coordinate after passing through the light guide layer 4 and the secondary excitation layer 5, and the light color coordinate in a wider color gamut can be realized through color mixing.
Further, in an embodiment of the present invention, the chip adopts a positive die bonding manner, as shown in fig. 5, in the length direction, every three LED chips are a unit, a primary excitation layer is formed on the outer side of one LED chip disposed near the left, and a blue light chip having the primary excitation layer 3 forms a light color coordinate after passing through the primary excitation layer 3, the light guide layer 4 and the secondary excitation layer 5; the red light chips (or ultraviolet, infrared, green light and other color light chips) without the primary excitation layer 3 form specific light color coordinates through the light guide layer 4 and the secondary excitation layer 5, and different light color coordinate points can realize light color coordinates in a wider color gamut through color mixing.
As shown in fig. 2, an embodiment of the present invention discloses a color-changeable planar light source module, including: base plate 1, flip-chip LED chip 8, outline 2, primary excitation layer 3, leaded light layer 4 and secondary excitation layer 5. The substrate can be an aluminum substrate, and certainly, the substrate can also be a glass fiber plate, a copper substrate and a ceramic substrate, and the ink is white ink (or transparent glass glaze) with high temperature resistance and high reflectivity. The normally-installed blue light chips are fixed on the substrate 1, and the chips are regularly arranged and distributed in groups, at least two groups. The fluorescent powder is mixed with the silica gel according to the proportion of a specific proportion to form fluorescent powder glue, part of the chips excite the fluorescent powder glue according to the specific proportion to form a primary excitation layer 3, and further the light color with specific coordinates is formed, and the light color can be in any light color point in a full color domain. The shape of the primary excitation layer is a hemispherical or approximately hemispherical glue dot. The rest blue light chips (red light, green light, ultraviolet, infrared and the like chips can be used, or a multi-color chip combination) do not excite the primary excitation layer. A layer of transparent adhesive is packaged in the frame to form a light guide layer 4, and the light guide layer 4 is used for mixing light colors of each point light source which independently emits light, so that the surface of the light source emits light uniformly and is free of glare. The fluorescent powder is mixed with the silica gel according to a specific proportion to form fluorescent powder glue, and the fluorescent powder glue is coated on the light guide layer to form the secondary excitation layer 5. The blue light chip excites the primary excitation layer to form a light color to obtain the light color of a specific coordinate, and excites the secondary excitation layer again to obtain another light color.
Further, as shown in fig. 6, the chip adopts an inverted die bonding manner, every two LED chips are a unit in the length direction, a primary excitation layer is formed on the outer side of the LED chip arranged on the right side, wherein the blue light chip with the primary excitation layer 3 forms a warm color temperature after passing through the primary excitation layer 3, the light guide layer 4 and the secondary excitation layer 5, and the color temperature range is 2200-; the blue light chip without the primary excitation layer 3 forms cold color temperature after passing through the light guide layer 4 and the secondary excitation layer 5, and the color temperature range is 5500-7000K. The color mixing can realize the whole color temperature in the 2200K-7000K color gamut.
Furthermore, the spectrums of the first excitation layer and the second excitation layer can be changed, wherein a blue light chip with the primary excitation layer 3 forms a light color with a red spectrum through the primary excitation layer 3, the light guide layer 4 and the secondary excitation layer 5, and a blue light chip without the primary excitation layer 3 forms another light color with a blue spectrum through the light guide layer 4 and the secondary excitation layer 5. The color mixing can realize the light color spectrum from the blue light spectrum to the red light spectrum.
Further, in an embodiment of the present invention, the chip adopts an inverted die bonding manner, as shown in fig. 7, in the length direction, every three LED chips are a unit, and a primary excitation layer is formed on the outer sides of two LED chips arranged near the left, wherein the blue light chip with the primary excitation layer 3 forms more than two light color coordinates after passing through the primary excitation layer 3, the light guide layer 4 and the secondary excitation layer 5; the blue light chip without the primary excitation layer 3 forms a specific light color coordinate through the light guide layer 4 and the secondary excitation layer 5, and light color coordinates in a wider color gamut can be realized through color mixing of different light color coordinate points.
Claims (10)
1. A color-variable planar light source module, characterized by: the LED light guide plate comprises a substrate (1), an outer frame (2), LED chips, a primary excitation layer (3), a light guide layer (4) and a secondary excitation layer (5), wherein a circuit board layer is arranged on the surface of the substrate (1), the outer frame (2) is fixed on the substrate, a chip installation cavity is formed between the outer frame (2) and the substrate (1), a plurality of LED chips are arranged on the substrate (1) at intervals and are electrically connected with the circuit board layer, the primary excitation layer (3) is arranged on the outer side of part of the LED chips, the light guide layer (4) is formed in the outer frame (2), the LED chips and the primary excitation layer (3) are sealed through the light guide layer (4), the light guide layer (4) is used for mixing light colors of each LED chip which independently emits light, the secondary excitation layer (5) is formed on the outer side of the light guide layer (4), and the primary excitation layer of the LED chips forms a light color, and exciting the secondary excitation layer again to obtain another light color.
2. A variable color planar light source module as claimed in claim 1, wherein: the substrate (1) is an aluminum substrate, a glass fiber board, a copper substrate or a ceramic substrate, the LED substrate uses high-temperature-resistant and high-reflectivity white ink or transparent glass glaze, and the LED chip is fixed on the circuit board layer.
3. A variable color planar light source module as claimed in claim 1, wherein: the LED chip is a blue light chip, a red light chip, a green light chip, an ultraviolet chip, an infrared chip or a multicolor combined chip.
4. A variable color planar light source module as claimed in claim 1, wherein: the LED chip is fixed on the substrate (1) in a flip-chip mode.
5. A variable color planar light source module as claimed in claim 1, wherein: the LED chip is fixed on the substrate in a normally-installed mode, and is electrically connected with the circuit board layer on the substrate (1) through a metal lead (6).
6. A variable color planar light source module as claimed in claim 1, wherein: the primary excitation layer (3) is a hemispherical or approximately hemispherical glue dot and is formed by mixing fluorescent powder and silica gel.
7. A variable color planar light source module as claimed in claim 1, wherein: every two LED chips in the length direction are a unit, and the LED chips with the primary excitation layers in each unit are arranged at intervals.
8. A variable color planar light source module as claimed in claim 1, wherein: every three LED chips in the length direction are a unit, primary excitation layers are formed on the two LED chips which are arranged relatively close to the left, and the primary excitation layers on the two LED chips are different in spectrum.
9. A variable color planar light source module as claimed in claim 1, wherein: every three LED chips in the length direction are a unit, and a primary excitation layer is formed on one LED chip which is arranged close to the left relatively.
10. A variable color planar light source module according to claim 8 or 9, wherein: in the width direction, the spectrums of the primary excitation layers on the same column of LED chips are the same or different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922480754.2U CN210897276U (en) | 2019-12-31 | 2019-12-31 | Color-changeable planar light source module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922480754.2U CN210897276U (en) | 2019-12-31 | 2019-12-31 | Color-changeable planar light source module |
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| CN210897276U true CN210897276U (en) | 2020-06-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036025A (en) * | 2021-04-06 | 2021-06-25 | 中国地质大学（北京） | Optical application device for packaging whitlockite type fluorescent powder and application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036025A (en) * | 2021-04-06 | 2021-06-25 | 中国地质大学（北京） | Optical application device for packaging whitlockite type fluorescent powder and application |
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Granted publication date: 20200630 Termination date: 20211231 |
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