CN209946425U - Light adjusting film, LED light source, lighting device, backlight module and display device - Google Patents
Light adjusting film, LED light source, lighting device, backlight module and display device Download PDFInfo
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- CN209946425U CN209946425U CN201921095868.9U CN201921095868U CN209946425U CN 209946425 U CN209946425 U CN 209946425U CN 201921095868 U CN201921095868 U CN 201921095868U CN 209946425 U CN209946425 U CN 209946425U
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Abstract
The utility model relates to a light adjusting film, a LED light source, a lighting device, a backlight module and a display device, which are used for LED light, wherein the light adjusting film comprises a light wave absorbing layer A, a light wave absorbing layer B and a light wave absorbing layer C which are arranged in a stacked manner; the light wave absorption layer A is used for absorbing light waves with the wavelength of 400 nm-500 nm, the light wave absorption layer B is used for absorbing light waves with the wavelength of 500 nm-600 nm, and the light wave absorption layer C is used for absorbing light waves with the light wave length of 600 nm-700 nm; the light wave absorption layer A, the light wave absorption layer B and the light wave absorption layer C can respectively absorb visible light of different wave bands. In use, the content of each optical band in the LED light passing through the light modulation film can be redistributed by adjusting the absorption capacity of the light wave absorption layer A, the light wave absorption layer B and the light wave absorption layer C to light waves.
Description
Technical Field
The utility model relates to a light processing technology field especially relates to a membrane of adjusting luminance, LED light source, lighting device, backlight unit and display device.
Background
LED light sources are widely used in the field of illumination as artificial light sources. When the LED light and the natural light are subjected to spectral analysis, the content of each light wave band in the LED light and the natural light is found to be different. The blue light in the LED light is higher than the blue light in the natural light, and the cyan light and the red light in the LED light are lower than the cyan light and the red light in the natural light.
Medical research finds that the LED light causes health problems such as color weakness, myopia, cataract, macular degeneration and the like of children just because the LED has high blue light, low cyan light and low red light.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model discloses lie in overcoming prior art's defect, provide a light membrane, LED light source, lighting device, backlight unit and display device, solve and reduce the influence of LED light to human health.
A light adjusting film is used for LED light and comprises a light wave absorption layer A, a light wave absorption layer B and a light wave absorption layer C which are arranged in a stacked mode; the light wave absorption layer A is used for absorbing light waves with the wavelength of 400 nm-500 nm, the light wave absorption layer B is used for absorbing light waves with the wavelength of 500 nm-600 nm, and the light wave absorption layer C is used for absorbing light waves with the light wave length of 600 nm-700 nm.
The light adjusting film, the light wave absorption layer A, the light wave absorption layer B and the light wave absorption layer C can respectively absorb visible light with different wave bands. In use, the content of each optical band in the LED light passing through the light modulation film can be redistributed by adjusting the absorption capacity of the light wave absorption layer A, the light wave absorption layer B and the light wave absorption layer C to light waves. For example: under the condition that the illumination environment is close to natural light, the absorption capacity of the light wave absorption layer A, the light wave absorption layer B and the light wave absorption layer C can be adjusted, so that the LED light is close to the natural light after passing through the light modulation film.
In one embodiment, the light wave absorption layer a comprises a cured organic solvent and a light wave absorption material D dispersed in the organic solvent, wherein the light wave absorption material D is used for absorbing light waves with the wavelength of 400 nm-500 nm; or the light wave absorption layer B comprises a solidified organic solvent and a light wave absorption material E dispersed in the organic solvent, wherein the light wave absorption material E is used for absorbing light waves with the wavelength of 500 nm-600 nm; or the light wave absorption layer C comprises a solidified organic solvent and a light wave absorption material F dispersed in the organic solvent, wherein the light wave absorption material F is used for absorbing light waves with the wavelength of 600 nm-700 nm. The light wave absorbing material D, the light wave absorbing material E and the light wave absorbing material F are dispersed in the organic solvent, so that the distribution conditions of the light wave absorbing material D, the light wave absorbing material E and the light wave absorbing material F can be conveniently fixed and limited, and the light wave absorbing capacity of each position on the light adjusting film is approximate.
In one embodiment, the organic solvent is one, two or more of toluene, butanone, isopropanol and ethyl acetate. Toluene, butanone, isopropanol and ethyl acetate can better disperse the light wave absorbing material D, the light wave absorbing material E and the light wave absorbing material F, so that the light wave absorbing material D, the light wave absorbing material E and the light wave absorbing material F can be uniformly dispersed in an organic solvent.
The utility model provides a LED light source, includes LED lamp pearl and the membrane of adjusting luminance, the membrane of adjusting luminance corresponds the setting so that the light that LED lamp pearl sent passes the membrane of adjusting luminance with the light emitting area of LED lamp pearl.
Above-mentioned LED light source, the light emitting area of membrane and LED lamp pearl corresponds the setting, so can utilize the membrane of adjusting luminance to absorb partial LED light to make LED light be close to with the nature light after passing the membrane of adjusting luminance.
In one embodiment, the LED lamp beads and the dimming film are arranged at intervals to form a heat dissipation channel. The LED lamp beads can generate heat in the process of light emitting work, and the heat can flow away through the heat dissipation channel, so that the ambient temperature of the LED lamp beads and the light modulation film is reduced.
In one embodiment, the LED light source further includes a circuit board and a plurality of LED lamp beads, the LED lamp beads are disposed on the circuit board and electrically connected to the circuit board, and the light modulation film is disposed on the circuit board.
In one embodiment, the LED light source further comprises a heat dissipation member, and the heat dissipation member is arranged on one side, away from the LED lamp beads, of the circuit board. The radiating piece can accelerate the radiating efficiency of the LED lamp bead, and then the ambient temperature of the LED lamp bead is reduced.
The lighting device comprises a lamp holder and the LED light source, wherein the LED light source is arranged on the lamp holder.
In the lighting device, the light adjusting film absorbs part of the LED light, so that the LED light is close to the natural light after passing through the light adjusting film; therefore, the light adjusting film can effectively protect a user in the process of using the lighting device.
A backlight module comprises the LED light source.
The backlight module adopting the LED light source can emit light close to natural light, so that a user is effectively protected.
A display device comprises a liquid crystal display panel and the backlight module.
The display device adopting the backlight module can emit light close to natural light through the liquid crystal display panel, and further effectively protects users.
Drawings
Fig. 1 is a schematic structural view of a light adjusting film according to an embodiment;
fig. 2 is a schematic structural view of a light adjusting film according to an embodiment;
fig. 3 is a schematic structural diagram of a light modulation film according to an embodiment.
FIG. 4 is a spectrum of natural light;
FIG. 5 is a spectrum of a conventional LED light;
FIG. 6 is a spectrum of normal LED light after passing through a light modulating film;
FIG. 7 is a schematic structural diagram of an LED light source according to an embodiment;
FIG. 8 is an exploded view of FIG. 7;
fig. 9 is a schematic structural diagram of an illumination device according to an embodiment.
Description of reference numerals: 10. light adjusting film, 11, light wave absorbing layer A, 12, light wave absorbing layer B, 13, light wave absorbing layer C, 20, LED light source, 21, LED lamp pearl, 21a, heat dissipation channel, 22, circuit board, 23, support column, 25a, screw, 30, lighting device, 31, lamp stand, 31a, hold the chamber, 31B, light-emitting window, 32, first mount pad, 33, second mount pad.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The first implementation mode comprises the following steps:
with reference to fig. 1, an embodiment provides a light adjusting film 10, which includes a light wave absorbing layer a11, a light wave absorbing layer B12, and a light wave absorbing layer C13 stacked together; the light wave absorbing layer A11 is used for absorbing light waves with the wavelength of 400 nm-500 nm, the light wave absorbing layer B12 is used for absorbing light waves with the wavelength of 500 nm-600 nm, and the light wave absorbing layer C13 is used for absorbing light waves with the wavelength of 600 nm-700 nm.
The light adjusting film 10, the light wave absorbing layer a11, the light wave absorbing layer B12, and the light wave absorbing layer C13 can absorb visible light in different wavelength bands. In use, by adjusting the absorption capacity of the light wave absorbing layer a11, the light wave absorbing layer B12, and the light wave absorbing layer C13 for light waves, the content of each light wavelength band in the LED light passing through the light modulation film 10 can be redistributed. For example: in the case where the lighting environment is required to be close to natural light, the absorption capacities of the light wave absorbing layer a11, the light wave absorbing layer B12, and the light wave absorbing layer C13 may be adjusted so that the LED light is close to natural light after passing through the light modulation film 10. For example, it may be used for the treatment of LED light or other artificial light.
Note that the above "lightwave absorbing layer a11, lightwave absorbing layer B12, and lightwave absorbing layer C13 provided in a stack" does not limit the order in which lightwave absorbing layer a11, lightwave absorbing layer B12, and lightwave absorbing layer C13 provided in a stack are sequentially stacked. In other words, the light wave absorbing layer a11, the light wave absorbing layer B12, and the light wave absorbing layer C13 may be laminated in any lamination order. As shown in fig. 1, the light wave absorbing layer a11, the light wave absorbing layer B12, and the light wave absorbing layer C13 are sequentially stacked; as shown in fig. 2, the light wave absorbing layer B12, the light wave absorbing layer a11, and the light wave absorbing layer C13 are sequentially stacked; as shown in fig. 3, the light wave absorbing layer a11, the light wave absorbing layer C13, and the light wave absorbing layer B12 are stacked in this order.
In one embodiment, the light wave absorbing layer a11 includes a cured organic solvent and a light wave absorbing material D dispersed in the organic solvent, the light wave absorbing material D is used for absorbing light waves with a wavelength of 400nm to 500 nm; or the lightwave absorption layer B12 comprises a solidified organic solvent and a lightwave absorption material E dispersed in the organic solvent, wherein the lightwave absorption material E is used for absorbing lightwaves with the wavelength of 500 nm-600 nm; or the light wave absorption layer C13 comprises a solidified organic solvent and a light wave absorption material F dispersed in the organic solvent, wherein the light wave absorption material F is used for absorbing light waves with the wavelength of 600 nm-700 nm. By dispersing the light wave absorbing material D, the light wave absorbing material E, and the light wave absorbing material F in the organic solvent, the distribution of the light wave absorbing material D, the light wave absorbing material E, and the light wave absorbing material F can be fixed and limited conveniently, so that the light wave absorbing capabilities of various positions on the light adjusting film 10 are close to each other.
The term "adjusting the absorption capacity of the light wave absorbing layer a11, the light wave absorbing layer B12, and the light wave absorbing layer C13 for light waves" can be understood as adjusting the contents of the light wave absorbing material D, the light wave absorbing material E, and the light wave absorbing material F.
It should be noted that:
the light wave absorbing material D includes but is not limited to one or two or more of azophenyl methacrylate, 2- (2-hydroxy-5-ethyl isopropanolate phenyl) -2H-benzotriazole and azo compounds.
Light wave absorbing material E includes, but is not limited to, potassium permanganate (KMnO)4) One or two or more of difluorine derivatives (difluorine ethylene carbonate C3H2O3F2) and dipyrrole borane compounds (BODIPY).
The light wave absorbing material F includes, but is not limited to, one or both of chromite and the euroded near infrared ray absorber NIR-788.
In one embodiment, the organic solvent includes one, two or more of, but is not limited to, toluene, butanone, isopropanol, and ethyl acetate. Toluene, butanone, isopropanol and ethyl acetate can better disperse the light wave absorbing material D, the light wave absorbing material E and the light wave absorbing material F, so that the light wave absorbing material D, the light wave absorbing material E and the light wave absorbing material F can be uniformly dispersed in an organic solvent.
The organic material of the dispersed light wave absorbing material D, the organic material of the dispersed light wave absorbing material E, and the organic material of the dispersed light wave absorbing material F may have the same composition or may be different.
In summary, the content of light in each wavelength band after passing through the light adjusting film 10 by the LED light will be described with reference to the spectral diagrams shown in fig. 4 to 6.
As shown in fig. 4 and fig. 5, compared with the LED light, the natural light has a lower light wave content with a wavelength of 430nm to 460nm, a higher light wave content with a wavelength of 470nm to 490nm, and a higher light wave content with a wavelength of 630nm to 700 nm.
As shown in fig. 5 and fig. 6, compared with the ordinary LED light, the LED light passing through the light modulation film 10 has a reduced light wave content of 430nm to 460nm, an increased light wave content of 470nm to 490nm, and an increased light wave content of 630nm to 700 nm.
The second embodiment:
referring to fig. 7, an embodiment provides an LED light source 20, which includes an LED lamp bead 21 and the light modulation film 10 described in any of the above embodiments, where the light modulation film 10 is disposed corresponding to a light emitting surface of the LED lamp bead 21, so that light emitted by the LED lamp bead 21 passes through the light modulation film 10.
Above-mentioned LED light source 20, light adjusting film 10 and the corresponding setting of light emitting area of LED lamp pearl 21 so can utilize light adjusting film 10 to absorb partial LED light to make LED light be close to with the nature light after passing light adjusting film 10.
It should be explained that the aforementioned "light modulation film 10 is disposed corresponding to the light emitting surface of LED lamp bead 21" can be understood that the light modulation film 10 is opposite to the light emitting surface of LED lamp bead 21, or that the light modulation film 10 is located at the periphery of the light emitting surface of LED lamp bead 21; at this time, the light emitted from the LED lamp bead 21 can be directly emitted to the light adjusting film 10. Of course, it can also be understood that the light emitting surface of the LED lamp bead 21 indirectly corresponds to the light adjusting film 10 through a light guide member (not shown in the figure), and the light emitted from the LED lamp bead 21 passes through the light guide member and then is emitted to the light adjusting film 10. Specifically, the light guide member may be an optical fiber, a light guide strip, a light guide plate, or the like having a device for changing a light propagation path.
Referring to fig. 7, in an embodiment, the LED lamp beads 21 and the light modulation film 10 are arranged at intervals to form a heat dissipation channel 21 a. LED lamp pearl 21 can produce the heat at the in-process of luminous work, and heat accessible heat dissipation channel 21a flows away, so with the ambient temperature who reduces LED lamp pearl 21 and membrane 10 of adjusting luminance.
Referring to fig. 7, in an embodiment, the LED light source 20 further includes a circuit board 22 and a plurality of LED lamp beads 21, the LED lamp beads 21 are disposed on the circuit board 22 and electrically connected to the circuit board 22, and the light adjusting film 10 is disposed on the circuit board 22.
Specifically, as shown in fig. 7 and 8, the light modulation film 10 and one side of the circuit board 22 on which the LED lamp beads 21 are disposed are spaced, a support column 23 is disposed between the light modulation film 10 and the circuit board 22, one end of the support column 23 is connected with the light modulation film 10, and the other end of the support column 23 is connected with the circuit board 22. Therefore, the light adjusting film 10 is kept in a spaced state with the circuit board 22 and the LED lamp beads 21 arranged thereon. Further, the light adjusting film 10 is disposed on one end of the supporting column 23, and the light adjusting film 10 is fixed on the supporting column 23 by a screw 25a or a bolt penetrating through the light adjusting film 10; similarly, on the other end of the circuit board 22, a screw 25a or a bolt passing through the circuit board 22 fixes the circuit board 22 to the support column 23.
Of course, in other embodiments, the light modulation film 10 and the LED lamp bead 21 may be arranged at intervals by using other structures. For example, the light adjusting film 10 and the LED lamp beads 21 are mounted on supports spaced apart from each other.
It should be noted that there are various spacing support structures for realizing the spacing between the light adjusting film 10 and the LED lamp beads 21, and the spacing support structures are not limited to the aforementioned and later-mentioned structures.
In an embodiment, the LED light source 20 further includes a heat dissipation member, and the heat dissipation member is disposed on one side of the circuit board 22 away from the LED lamp bead 21. The heat dissipation piece can accelerate the heat dissipation efficiency of the LED lamp beads 21, and then the ambient temperature of the LED lamp beads 21 is reduced.
In particular, the heat sink is typically a metal piece. In particular to an aluminum product with radiating fins. The third embodiment is as follows:
with reference to fig. 9, an embodiment provides an illumination device 30, which includes a lamp socket 31 and the LED light source 20 of any of the above embodiments, where the LED light source 20 is disposed on the lamp socket 31. The light adjusting film 10 absorbs part of the LED light so that the LED light is close to the natural light after passing through the light adjusting film 10; thus, the light adjusting film 10 can effectively protect a user during the use of the lighting device 30.
Specifically, as shown in fig. 6, an accommodating cavity 31a and a light outlet 31b communicated with the accommodating cavity 31a are arranged in the lamp holder 31, a first mounting seat 32 and a second mounting seat 33 are arranged on the inner wall of the accommodating cavity 31a at an interval, and the second mounting seat 33 is located on one side of the first mounting seat 32 close to the light outlet 31 b; the LED lamp bead 21 is mounted on the first mounting seat 32, and the light adjusting film 10 is mounted on the second mounting seat 33. The LED lamp beads 21 and the light adjusting film 10 can be spaced apart from each other by the first and second mounting seats 32 and 33. Further, when the LED light source 20 includes the circuit board 22, the circuit board 22 is disposed between the first mounting seat 32 and the LED lamp bead 21. Further, when the first mounting seat 32 has good thermal conductivity, the first mounting seat 32 can be used as a heat dissipation member to diffuse heat generated by the LED lamp bead 21.
Further, the lighting device 30 further includes a light-transmissive decorative lamp housing (not shown) for covering the LED light source 20. It should be noted that the shape of the transparent decorative lamp housing can be similar to the shape of animals and plants. Such as strawberry, pineapple, etc.
The fourth embodiment:
an embodiment provides a backlight module including the LED light source 20 according to any of the above embodiments. The backlight module using the LED light source 20 can emit light close to natural light, thereby effectively protecting a user.
The fifth embodiment:
an embodiment provides a display device including a liquid crystal display panel and the backlight module according to any one of the embodiments. The display device adopting the backlight module can emit light close to natural light through the liquid crystal display panel, thereby effectively protecting users.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A light adjusting film is characterized by comprising a light wave absorption layer A, a light wave absorption layer B and a light wave absorption layer C which are arranged in a laminated manner; the light wave absorption layer A is used for absorbing light waves with the wavelength of 400 nm-500 nm, the light wave absorption layer B is used for absorbing light waves with the wavelength of 500 nm-600 nm, and the light wave absorption layer C is used for absorbing light waves with the light wave length of 600 nm-700 nm.
2. The light adjusting film according to claim 1, wherein the light wave absorbing layer a comprises a cured organic solvent and a light wave absorbing material D dispersed in the organic solvent, the light wave absorbing material D being configured to absorb light waves having a wavelength of 400nm to 500 nm; or
The light wave absorption layer B comprises a solidified organic solvent and a light wave absorption material E dispersed in the organic solvent, and the light wave absorption material F is used for absorbing light waves with the wavelength of 500-600 nm; or
The light wave absorption layer C comprises a solidified organic solvent and a light wave absorption material F dispersed in the organic solvent, wherein the light wave absorption material F is used for absorbing light waves with the wavelength of 600 nm-700 nm.
3. The light-adjusting film according to claim 2, wherein the organic solvent is one, two or more of toluene, methyl ethyl ketone, isopropyl alcohol, and ethyl acetate.
4. An LED light source, comprising an LED lamp bead and the light adjusting film of any one of claims 1-3, wherein the light adjusting film is disposed corresponding to the light emitting surface of the LED lamp bead so that the light emitted from the LED lamp bead passes through the light adjusting film.
5. The LED light source of claim 4, wherein the LED beads are spaced apart from the light modulating film to form heat dissipation channels.
6. The LED light source of any one of claims 4 to 5, further comprising a circuit board and a plurality of LED lamp beads, wherein the LED lamp beads are arranged on the circuit board and electrically connected to the circuit board, and the dimming film is arranged on the circuit board.
7. The LED light source of claim 6 further comprising a heat sink disposed on a side of the circuit board facing away from the LED bead.
8. A lighting device comprising a base and the LED light source of any one of claims 4-7, wherein the LED light source is disposed on the base.
9. A backlight module comprising the LED light source of any one of claims 4-7.
10. A display device comprising a liquid crystal display panel and the backlight module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921095868.9U CN209946425U (en) | 2019-07-12 | 2019-07-12 | Light adjusting film, LED light source, lighting device, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921095868.9U CN209946425U (en) | 2019-07-12 | 2019-07-12 | Light adjusting film, LED light source, lighting device, backlight module and display device |
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| Publication Number | Publication Date |
|---|---|
| CN209946425U true CN209946425U (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921095868.9U Active CN209946425U (en) | 2019-07-12 | 2019-07-12 | Light adjusting film, LED light source, lighting device, backlight module and display device |
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| CN (1) | CN209946425U (en) |
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- 2019-07-12 CN CN201921095868.9U patent/CN209946425U/en active Active
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