CN114002882B - Mini LED backlight module structure - Google Patents
Mini LED backlight module structure Download PDFInfo
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- CN114002882B CN114002882B CN202111421707.6A CN202111421707A CN114002882B CN 114002882 B CN114002882 B CN 114002882B CN 202111421707 A CN202111421707 A CN 202111421707A CN 114002882 B CN114002882 B CN 114002882B
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- 239000000463 material Substances 0.000 claims abstract description 53
- 239000011324 bead Substances 0.000 claims abstract description 27
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 12
- 238000009792 diffusion process Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000004888 barrier function Effects 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 7
- 229920002799 BoPET Polymers 0.000 claims description 6
- 239000002096 quantum dot Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 238000002834 transmittance Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000010009 beating Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 88
- 238000010586 diagram Methods 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004821 Contact adhesive Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 235000005811 Viola adunca Nutrition 0.000 description 1
- 240000009038 Viola odorata Species 0.000 description 1
- 235000013487 Viola odorata Nutrition 0.000 description 1
- 235000002254 Viola papilionacea Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Led Device Packages (AREA)
Abstract
A Mini LED backlight module structure comprises a plurality of blue light Mini LED lamp beads, a multi-layer composite film, a light conversion material layer, a diffusion particle layer and a fluorescent layer; the light conversion material layer is arranged on the upper surface of the fluorescent layer, and the fluorescent layer is arranged on the upper surface of the multilayer composite film; the diffusion particle layer is arranged on the upper surface of the light conversion material layer; the multilayer composite film comprises a light-transmitting film layer and a spliced film material layer; the light-transmitting film layer clings to the blue light Mini LED lamp beads; the spliced film material layer is arranged between the light-transmitting film layer and the fluorescent layer; each Mini LED lamp bead corresponds to one spliced film material layer. The invention is used for realizing the effect of blue light transmission and local light evening; the light conversion material layer is used for converting blue light into white light; the diffusion particle layer is used for uniformly beating white light to form a uniform and comfortable light source.
Description
Technical Field
The invention relates to the field of LED backlight source modules, in particular to a Mini LED backlight source module structure.
Background
The area of the lamp bead of the existing Mini LED is smaller, the fluorescent powder particles are larger, and the traditional encapsulation mode of the direct-contact adhesive is difficult to realize; meanwhile, the quantum dots are easy to quench by water and oxygen with high light intensity and the like, and are difficult to directly glue and package. Therefore, a remote fluorescent film or a fluorescent plate is generally adopted to convert blue light into RGB light, a typical fluorescent film is in a sandwich structure, a fluorescent conversion layer is arranged in the middle, and an upper layer and a lower layer are support layers or protective layers.
In the existing Mini LED technology, in order to achieve the dodging effect, the following manner is generally adopted:
Mode one: the distance between the blue light lamp beads and the fluorescent film is increased to achieve a uniform light effect, and RGB light is emitted through the fluorescent film; but the resulting backlight is still thicker;
mode two: the ultra-thin effect is realized by increasing the density of the lamp beads and greatly increasing the use amount of the lamp beads; but the cost increases significantly.
Disclosure of Invention
Object of the invention
In order to solve the technical problems in the background art, the invention provides a Mini LED backlight module structure, and the backlight module design that a film layer clings to a lamp bead is realized through the composite film structural design, so that the whole thinning effect of the backlight module is realized under the condition that the use amount of the lamp bead is not greatly increased, and the uniform light emission is ensured.
(II) technical scheme
In order to solve the problems, the invention provides a Mini LED backlight module structure, which comprises a plurality of blue light Mini LED lamp beads, a multi-layer composite film, a light conversion material layer, a diffusion particle layer and a fluorescent layer;
the light conversion material layer is arranged on the upper surface of the fluorescent layer, and the fluorescent layer is arranged on the upper surface of the multilayer composite film; the diffusion particle layer is arranged on the upper surface of the light conversion material layer;
The multilayer composite film comprises a light-transmitting film layer and a spliced film material layer; the light-transmitting film layer clings to the blue light Mini LED lamp beads; the spliced film material layer is arranged between the light-transmitting film layer and the fluorescent layer; each Mini LED lamp bead corresponds to one spliced film material layer;
The center of the spliced film material layer is positioned right above the center of the blue light Mini LED lamp bead; the spliced membrane material layer comprises a plurality of membrane material layers; the plurality of film material layers are distributed and arranged around by taking the center of the spliced film material layer as a reference, and the refractive indexes of the plurality of film material layers are gradually increased.
Preferably, the light-transmitting film layer is one of PET, PMMA, PEN and PC.
Preferably, the blue light transmittance of the light-transmitting film layer is greater than 80%, and the refractive index of the light-transmitting film layer is less than 1.5.
Preferably, the fluorescent layer is an independent fluorescent layer, and the independent fluorescent layer is made of rare earth fluorescent powder;
Or alternatively, the first and second heat exchangers may be,
The fluorescent layer is a sandwich structure fluorescent film layer protected by an upper water vapor barrier film and a lower water vapor barrier film; in the sandwich structure fluorescent film layer, the upper layer material and the lower layer material are respectively formed by: the quantum dot material and the fluorescent material which is easy to lose efficacy are prepared; the middle layer is a water vapor barrier film which is prepared by evaporating a silicon oxide and aluminum oxide PET film or a PET film with a water-blocking and oxygen-blocking coating coated on the surface.
Preferably, the number of the membrane layers is h;
The refractive indexes of the h film layers are distributed from the center to the periphery in sequence: n1, n2 … … nh; the distance from the edge to the center of each film layer is as follows: l1, L2 … … Lh;
Wherein h is a positive integer greater than 2.
Preferably, the Mini LED lamp beads are regularly arranged.
In the invention, the multilayer composite film is used for realizing the effect of blue light transmission and local light homogenization; the light conversion material layer is used for converting blue light into white light; the diffusion particle layer is used for uniformly beating white light to form a uniform and comfortable light source.
According to the invention, through the structural design of the composite film material, the design of the backlight module with the film layer clung to the lamp beads is realized, the whole thinning effect of the backlight module is realized under the condition that the use amount of the lamp beads is not greatly increased, and the uniform light emission is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a Mini LED backlight module structure according to the present invention.
Fig. 2 is a schematic structural diagram of a multilayer composite film in the Mini LED backlight module structure according to the present invention.
Fig. 3 is a schematic structural diagram of a plurality of film layers in the Mini LED backlight module structure according to the present invention.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
As shown in fig. 1-3, the Mini LED backlight module structure provided by the present invention includes a plurality of blue light Mini LED lamp beads 1, a multi-layer composite film 2, a light conversion material layer 3, a diffusion particle layer 4 and a fluorescent layer 5;
The light conversion material layer 3 is arranged on the upper surface of the fluorescent layer 5, and the fluorescent layer 5 is arranged on the upper surface of the multilayer composite film 2; the diffusion particle layer 4 is arranged on the upper surface of the light conversion material layer 3;
the multilayer composite film 2 comprises a light-transmitting film layer 21 and a spliced film material layer 22; the light-transmitting film layer 21 is tightly attached to the blue light Mini LED lamp bead 1; the spliced film material layer 22 is arranged between the light-transmitting film layer 21 and the fluorescent layer 5; each Mini LED lamp bead 1 corresponds to one spliced film layer 22.
In the invention, the multilayer composite film 2 is used for realizing the effects of blue light transmission and local light homogenization; the light conversion material layer 3 is used for converting blue light into white light; the diffusion particle layer 4 is used for realizing uniform white light so as to form a uniform and comfortable light source.
According to the invention, through the structural design of the composite film material, the design of the backlight module with the film layer clung to the lamp beads is realized, the whole thinning effect of the backlight module is realized under the condition that the use amount of the lamp beads is not greatly increased, and the uniform light emission is ensured.
In an alternative embodiment, the blue light transmittance of the light-transmitting film layer 21 is greater than 80%, and the refractive index of the light-transmitting film layer 21 is less than 1.5.
The blue light transmittance is more than 80%. The refractive index of the light-transmitting film layer 21 is: 1.5.
In an alternative embodiment, the fluorescent layer 5 is an independent fluorescent layer, and the independent fluorescent layer is made of rare earth fluorescent powder;
Or alternatively, the first and second heat exchangers may be,
The fluorescent layer 5 is a sandwich structure fluorescent film layer protected by an upper water vapor barrier film and a lower water vapor barrier film; in the sandwich structure fluorescent film layer, the upper layer material and the lower layer material are respectively formed by: the quantum dot material and the fluorescent material which is easy to lose efficacy are prepared; the middle layer is a water vapor barrier film which is prepared by evaporating a silicon oxide and aluminum oxide PET film or a PET film with a water-blocking and oxygen-blocking coating coated on the surface.
It should be noted that the water vapor barrier film has a good water vapor barrier effect and a good oxidation prevention effect.
In an alternative embodiment, the center of the spliced film layer 22 is located right above the center of the blue light Mini LED lamp bead 1; the spliced membrane layer 22 comprises a plurality of membrane layers; the plurality of film layers are distributed around the center of the spliced film layer 22, and the refractive indexes of the plurality of film layers are gradually increased.
In an alternative embodiment, the number of the film layers is h;
The refractive indexes of the h film layers are distributed from the center to the periphery in sequence: n1, n2 … … nh; the distance from the edge to the center of each film layer is as follows: l1, L2 … … Lh;
Wherein h is a positive integer greater than 2.
The refractive index layer of the multilayer composite film 2 is increased, and the total reflection angle is increased, thereby realizing the effects of blue light transmission and local light homogenization.
In an alternative embodiment, the light conversion material layer 3 contains phosphor, quantum dots and dye for converting blue light into white light, for converting blue-violet light into white light.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and are in no way limiting of the invention. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (6)
1. The Mini LED backlight module structure is characterized by comprising a plurality of blue light Mini LED lamp beads (1), a multi-layer composite film (2), a light conversion material layer (3), a diffusion particle layer (4) and a fluorescent layer (5);
the light conversion material layer (3) is arranged on the upper surface of the fluorescent layer (5), and the fluorescent layer (5) is arranged on the upper surface of the multilayer composite film (2); the diffusion particle layer (4) is arranged on the upper surface of the light conversion material layer (3);
the multilayer composite film 2) comprises a light-transmitting film layer (21) and a spliced film material layer (22); the light-transmitting film layer (21) is tightly attached to the blue light Mini LED lamp beads (1); the spliced film material layer (22) is arranged between the light-transmitting film layer (21) and the fluorescent layer (5); each Mini LED lamp bead (1) corresponds to one spliced film material layer (22);
the center of the spliced film material layer (22) is positioned right above the center of the blue light Mini LED lamp bead (1);
the spliced membrane material layer (22) comprises a plurality of membrane material layers; the plurality of film material layers are distributed around the center of the spliced film material layer (22) as a reference, and the refractive indexes of the plurality of film material layers are gradually increased.
2. The Mini LED backlight module structure according to claim 1, wherein the light transmissive film layer (21) is one of PET, PMMA, PEN and PC.
3. The Mini LED backlight module structure according to claim 2, wherein the blue light transmittance of the light-transmitting film layer (21) is greater than 80%, and the refractive index of the light-transmitting film layer (21) is less than 1.5.
4. The Mini LED backlight module structure according to claim 1, wherein the fluorescent layer (5) is an independent fluorescent layer, and the independent fluorescent layer is made of rare earth fluorescent powder;
Or alternatively, the first and second heat exchangers may be,
The fluorescent layer (5) is a sandwich structure fluorescent film layer protected by an upper water vapor barrier film and a lower water vapor barrier film; in the sandwich structure fluorescent film layer, the upper layer material and the lower layer material are respectively formed by: the quantum dot material and the fluorescent material which is easy to lose efficacy are prepared; the middle layer is a water vapor barrier film which is prepared by evaporating a silicon oxide and aluminum oxide PET film or a PET film with a water-blocking and oxygen-blocking coating coated on the surface.
5. The Mini LED backlight module structure according to claim 4, wherein the number of the film layers is h;
The refractive indexes of the h film layers are distributed from the center to the periphery in sequence: n1, n2 … … nh; the distance from the edge to the center of each film layer is as follows: l1, L2 … … Lh;
Wherein h is a positive integer greater than 2.
6. The Mini LED backlight module structure according to any one of claims 1-5, wherein a plurality of Mini LED lamp beads (1) are regularly arranged.
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| CN202111421707.6A CN114002882B (en) | 2021-11-26 | 2021-11-26 | Mini LED backlight module structure |
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| CN202111421707.6A CN114002882B (en) | 2021-11-26 | 2021-11-26 | Mini LED backlight module structure |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006285047A (en) * | 2005-04-01 | 2006-10-19 | Citizen Electronics Co Ltd | Liquid crystal lens |
| CN101014899A (en) * | 2004-09-10 | 2007-08-08 | 住友电气工业株式会社 | Transluscent display panel and method for manufacturing the same |
| CN102287714A (en) * | 2011-08-19 | 2011-12-21 | 上海交通大学 | Backlight system with optical grating |
| CN107238979A (en) * | 2017-08-11 | 2017-10-10 | 京东方科技集团股份有限公司 | Leaded light component and preparation method, backlight module and display device |
| CN108011020A (en) * | 2018-01-12 | 2018-05-08 | 惠州市华星光电技术有限公司 | A kind of quantum dot diaphragm and backlight source module |
| CN110183979A (en) * | 2019-06-24 | 2019-08-30 | 弗洛里光电材料（苏州）有限公司 | Multilayer complex films and its application |
| CN210605291U (en) * | 2019-11-11 | 2020-05-22 | 昆山龙腾光电股份有限公司 | Backlight module and liquid crystal display device |
| CN111624817A (en) * | 2020-06-30 | 2020-09-04 | 京东方科技集团股份有限公司 | Backlight module, manufacturing method thereof and display device |
| CN113325627A (en) * | 2021-04-26 | 2021-08-31 | 苏州大学 | Light homogenizing film applied to mini-LED array light source |
-
2021
- 2021-11-26 CN CN202111421707.6A patent/CN114002882B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101014899A (en) * | 2004-09-10 | 2007-08-08 | 住友电气工业株式会社 | Transluscent display panel and method for manufacturing the same |
| JP2006285047A (en) * | 2005-04-01 | 2006-10-19 | Citizen Electronics Co Ltd | Liquid crystal lens |
| CN102287714A (en) * | 2011-08-19 | 2011-12-21 | 上海交通大学 | Backlight system with optical grating |
| CN107238979A (en) * | 2017-08-11 | 2017-10-10 | 京东方科技集团股份有限公司 | Leaded light component and preparation method, backlight module and display device |
| CN108011020A (en) * | 2018-01-12 | 2018-05-08 | 惠州市华星光电技术有限公司 | A kind of quantum dot diaphragm and backlight source module |
| CN110183979A (en) * | 2019-06-24 | 2019-08-30 | 弗洛里光电材料（苏州）有限公司 | Multilayer complex films and its application |
| CN210605291U (en) * | 2019-11-11 | 2020-05-22 | 昆山龙腾光电股份有限公司 | Backlight module and liquid crystal display device |
| CN111624817A (en) * | 2020-06-30 | 2020-09-04 | 京东方科技集团股份有限公司 | Backlight module, manufacturing method thereof and display device |
| CN113325627A (en) * | 2021-04-26 | 2021-08-31 | 苏州大学 | Light homogenizing film applied to mini-LED array light source |
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