CN104728779B - luminous film layer structure and backlight module - Google Patents
luminous film layer structure and backlight module Download PDFInfo
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- CN104728779B CN104728779B CN201510191232.4A CN201510191232A CN104728779B CN 104728779 B CN104728779 B CN 104728779B CN 201510191232 A CN201510191232 A CN 201510191232A CN 104728779 B CN104728779 B CN 104728779B
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- 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
- F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
-
- 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
- F21V5/00—Refractors for light sources
-
- 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
Abstract
The invention provides a kind of luminous film layer structure and backlight module.Wherein, the luminous film layer structure includes quantum dot light conversion layer, and quantum dot light conversion layer includes adhesive layer and the quantum dot and inorganic oxide nanoparticles that are scattered in adhesive layer, and the crystal structure of inorganic oxide nanoparticles is rutile structure.Because the inorganic oxide nanoparticles of rutile structure can allow feux rouges and green glow to pass through, and scatter blue light, therefore it is capable of transmission, refraction or the scattering of being chosen property into the light of quantum dot light conversion layer, so that the light into quantum dot light conversion layer can be more effectively utilized, and then the luminous efficiency of quantum dot light conversion layer is improved, while also enable the display device for being provided with luminous film layer structure that there is high color gamut value and required brightness.
Description
Technical field
The present invention relates to technical field of semiconductors, in particular to a kind of luminous film layer structure and backlight module.
Background technology
In display and lighting field, colour gamut is generally referred to as color space by people, and representing a color image institute can table
The concrete condition of the color of existing color space.Presentation for display device color gamut value size depends primarily on the choosing of backlight module
Select.Existing backlight module can be limited by its internal structure and its related device, cause the luminous efficiency of backlight module to drop
It is low.In order to realize the high color gamut value of display device, it usually needs the power consumption for increasing backlight module is closed to ensure that display device has
Suitable brightness.
Currently used backlight module is quantum dot light switching film (QD-film) and related device.Its principle of luminosity
For：The blue light sent by blue led excites the red quantum dot in QD-film it is sent feux rouges, and excites amount of green color simultaneously
Sub- point (30) makes it send green glow, and high color gamut value is realized finally by RGB three primary colors.But for identical quantum dot, its
Light conversion efficiency is certain, so to expect the backlight module of more high brightness, it is necessary to increase the usage amount of quantum dot, and
The power output of blue led is increased, so necessarily causes the increase of backlight module energy consumption.And the manufacturing cost of quantum dot is very
Costliness, and most of quantum dots contain the heavy metal element harmful to people and environmental toxic.Therefore, high color gamut value is being realized
Under the premise of, it is desirable to reduce the usage amount of quantum dot in QD-film, and ensure that final display can reach the bright of people's demand
Degree.
Comprising red in the QD-film of quantum dot light switching film in prior art (such as Chinese patent CN103228983)
Color quantum dot, green quantum dot and diffusion particle, the main function that the diffusion particle plays are increase blue lights in QD-film
Propagation path, more quantum dots is excited by blue light, so as to improve the utilization rate of incident blue light, and obtain more
Red and green emitted light, so as to add the briliancy of display device.
But although the diffusion particle added in QD-film can effectively improve the utilization rate of blue light, addition
Diffusion particle such as silica, PMMA, PS, PP etc. also have different degrees of absorption to blue light, feux rouges and green glow, so as to tight
The utilization rate of blue light is reduced again, and the feux rouges and green glow that have been excited can also be absorbed, and then cause the hair of backlight module
Light efficiency reduces.Also, because the bigger diffusion effect of the refringence of diffusion particle and glue material is more obvious, in production process
The regulation of middle glue and the species selection of diffusion particle can be also restricted.
The content of the invention
It is a primary object of the present invention to provide a kind of luminous film layer structure and backlight module, to improve luminous film layer structure
Luminous efficiency, so as to increase the briliancy of respective display apparatus, and improve corresponding chromaticity coordinates value.
To achieve these goals, according to an aspect of the invention, there is provided a kind of luminous film layer structure, the luminescent film
Rotating fields include quantum dot light conversion layer, quantum dot light conversion layer include adhesive layer and the quantum dot being scattered in adhesive layer and
Inorganic oxide nanoparticles, and the crystal structure of inorganic oxide nanoparticles is rutile structure.
Further, the particle diameter of inorganic oxide nanoparticles is less than 50nm.
Further, formed inorganic oxide nanoparticles material be selected from titanium dioxide, brown lead oxide, tin ash,
Any of columbium dioxide, tungsten dioxide, manganese dioxide and germanium dioxide are a variety of.
Further, the gross mass of inorganic oxide nanoparticles account for the 1wt% of quantum dot light conversion layer gross mass~
20wt%.
Further, the film layer structure that lights is also transparent at least one surface of quantum dot light conversion layer including being arranged at
Support film layer.
Further, diffusion particle is dispersed with transparent support film layer, and the refractive index of diffusion particle is different from transparent branch
Support the refractive index of film layer.
Further, the surface of transparent support film layer has raised structures and/or sunk structure.
Further, the film layer structure that lights also includes the Diffusion barrier layer being arranged on the surface of transparent support film layer, diffusion
Diffusion particle is dispersed with film layer, and the refractive index of diffusion particle is different from the refractive index of Diffusion barrier layer.
Further, quantum dot includes red quantum dot and green quantum dot, and the gross mass of quantum dot accounts for quantum dot light
0.1wt%~10wt% of conversion layer gross mass.
Further, the diffusion particle in quantum dot light conversion layer also including content for 1~20wt%, and diffusion particle
Refractive index is different from the refractive index of adhesive layer.
Further, the film layer structure that lights also includes the aqueous vapor barrier layer being covered on Diffusion barrier layer.
According to another aspect of the present invention, there is provided a kind of backlight module, the backlight module include luminous film layer structure and
Exciter component, and luminous film layer structure is above-mentioned luminous film layer structure.
Apply the technical scheme of the present invention, the invention provides a kind of luminous film layer structure, the film layer structure that lights includes amount
Son point light conversion layer, the quantum dot and inorganic oxide that quantum dot light conversion layer includes adhesive layer and is scattered in adhesive layer are received
Rice grain, and the crystal structure of inorganic oxide nanoparticles is rutile structure.Due to the inorganic oxide of rutile structure
Nano particle can allow feux rouges and green glow by and scattering blue light, therefore the light for entering quantum dot light conversion layer can
By transmission, refraction or the scattering of selectivity, so that the light into quantum dot light conversion layer can be more effectively utilized, and then
The luminous efficiency of quantum dot light conversion layer is improved, while also enables the display device for being provided with luminous film layer structure to have
High color gamut value and required brightness.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the cross-sectional view for the luminous film layer structure that embodiment of the present invention is provided；
Fig. 2 shows that the surface for the transparent support film layer that embodiment of the present invention is provided has the luminescent film of raised structures
The cross-sectional view of Rotating fields；
Fig. 3 shows that the surface for the transparent support film layer that embodiment of the present invention is provided has the luminescent film of sunk structure
The cross-sectional view of Rotating fields；
Fig. 4 shows that there is raised structures and depression to tie on the surface for the transparent support film layer that embodiment of the present invention is provided
The cross-sectional view of the luminous film layer structure of structure.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
From background technology, existing backlight module can be by the internal structure and its related device of quantum dot light conversion layer
Limitation, cause the luminous efficiency of backlight module relatively low.The present inventor is studied regarding to the issue above, there is provided one
The luminous film layer structure of kind.As shown in Figures 1 to 4, the luminous film layer structure includes quantum dot light conversion layer, quantum dot light conversion layer bag
The quantum dot 30 and inorganic oxide nanoparticles 20 for including adhesive layer 10 and being scattered in adhesive layer 10, and inorganic oxide is received
The crystal structure of rice grain 20 is rutile structure.
In the above-mentioned luminous film layer structure of the present invention, because the inorganic oxide nanoparticles of rutile structure can allow
Feux rouges and green glow by, and scatter blue light, thus the light for entering quantum dot light conversion layer be capable of being chosen property transmission,
Refraction or scattering, so that the light into quantum dot light conversion layer can be more effectively utilized, and then improve quantum dot light
The luminous efficiency of conversion layer, while also enable the display device for being provided with luminous film layer structure that there is high color gamut value and required
Brightness.
In luminous film layer structure provided by the invention, two can be selected from by forming the material of inorganic oxide nanoparticles 20
Any of titanium oxide, brown lead oxide, tin ash, columbium dioxide, tungsten dioxide, manganese dioxide and germanium dioxide are more
Kind.Wherein, the particle diameter of inorganic oxide nanoparticles 20 can be set according to the actual requirements, it is preferable that inorganic oxide
The particle diameter of nano particle 20 is less than 50nm.In above-mentioned preferable particle size range, inorganic oxide nanoparticles 20 can more have
Effect passes through feux rouges and green glow, and produces scattering process to blue light, so as to which light selectivity is reflected back into quantum dot light conversion
In layer.
The percentage by weight of inorganic oxide nanoparticles 20 can also enter according to the actual requirements in quantum dot light conversion layer
Row setting, it is preferable that the gross mass of inorganic oxide nanoparticles 20 account for the gross mass of quantum dot light conversion layer for 1~
20wt%.In above-mentioned preferable parameter area, inorganic oxide nanoparticles 20 can be by being scattered to enter to blue light
One step improves the luminous efficiency of quantum dot light conversion layer.
In luminous film layer structure provided by the invention, the material of adhesive layer 10 can be set according to prior art,
Adhesive layer 10 is mixed to form by oligomer and diluting monomer.Due to the material of above-mentioned adhesive layer 10 be it is transparent, therefore
Light can be transmitted to quantum dot light conversion layer.Preferably, also there is light trigger in above-mentioned adhesive layer 10.It is more highly preferred to
Ground, the content of oligomer are 30wt%~60wt%, the content of diluting monomer is 20wt%~80wt%, and light trigger contains
Measure as 0.1wt%~5wt%.Being capable of the property prepared using the content of above-mentioned preferable oligomer, diluting monomer and light trigger
The stable adhesive layer 10 of energy.
The material of oligomer and light trigger can be set according to prior art, it is preferable that the material of oligomer is
Polyacrylate, polymethacrylates, polyurethane, polyepoxides, polyester, polyethers, polysulfide and makrolon are low
Any of polymers is a variety of；The material of light trigger is benzoin ether (benzoin methyl ether, benzoin isobutyl ether etc.), acetophenone
Any of derivative, acylphosphanes oxidized derivatives, acyl group phosphine-derivatives benzophenone and thioxanthones are a variety of；Together
When preferably, diluting monomer can include there is acryloyl group or vinyl-functional and C1-C20The monomer of moieties.
In luminous film layer structure provided by the invention, it is preferable that luminous film layer structure also includes being arranged at quantum dot light
Transparent support film layer 50 at least one surface of conversion layer, its structure are as shown in Figure 2.Above-mentioned transparent support film layer 50 can
Increase the mechanical performance of transparent support film layer 50.It is further preferable that being dispersed with diffusion particle 40 in transparent support film layer 50, and expand
The refractive index of shot 40 is different from the refractive index of transparent support film layer 50.
Preferably, the material of above-mentioned transparent support film layer 50 can be PET, transparent aqueous vapor Obstruct membrane or glass, wherein
When transparent support film layer is aqueous vapor Obstruct membrane or glass, the transparent support film can meet that luminous film layer structure is wanted to the oxygen that blocks water
Ask.Preferably simultaneously, the material of diffusion particle 40 is polymethyl methacrylate, polypropylene, silica, borosilicate and polyphenyl
Any of ethene is a variety of.Meanwhile diffusion particle 40 can be spherical or irregular shape particle, diameter can be 0.5 μ
M~12 μm.Quantum dot light conversion layer can further be reflected light back into by being provided with the transparent support film layer 50 of diffusion particle 40
In, and then absorption is re-started to unemployed light, and have the function that the incident light utilization efficiency of increase.
Preferably, the surface of transparent support film layer 50 has raised structures 510 in luminous film layer structure provided by the invention
And/or sunk structure 520, its structure is as shown in Figures 2 to 4.And the raised structures 510 and/or sunk structure 520 can be according to realities
Border demand is prepared into different shape or angle, when light is by having above-mentioned raised structures 510 and/or sunk structure 520
Interface when, it may occur that reflection, so as to which light back is returned in quantum dot light conversion layer, and then to unemployed
Light re-starts absorption, and has the function that the incident light utilization efficiency of increase.
In luminous film layer structure provided by the invention, it is preferable that luminous film layer structure also includes being arranged at transparent support
Diffusion barrier layer 60 on the surface of film layer 50, diffusion particle 40, and the refractive index of diffusion particle 40 are dispersed with Diffusion barrier layer 60
It is as shown in Figure 3 different from the refractive index of Diffusion barrier layer 60, its structure.The material of Diffusion barrier layer 60 can be carried out according to prior art
Setting, it is preferable that the material of Diffusion barrier layer 60 is acrylic ester compound.It is provided with the energy of Diffusion barrier layer 60 of diffusion particle 40
It is enough further to reflect light back into quantum dot light conversion layer, and then absorption is re-started to unemployed light, and reach increasing
Add the effect for penetrating light utilization efficiency.
In luminous film layer structure provided by the invention, those skilled in the art can be according to the actual requirements to quantum dot
The species of quantum dot 30 is selected in light conversion layer, it is preferable that quantum dot light conversion layer includes adhesive layer 10, and is scattered in
Red quantum dot and green quantum dot in adhesive layer 10.The blue light excitation quantum point light conversion layer (QD- sent by blue led
Film the red quantum dot in) make its send feux rouges and while excite green quantum dot it is sent green glow, finally by RGB tri-
Primary colors realizes high color gamut value.
It is further preferable that the total content of red quantum dot and green quantum dot can be in quantum dot light conversion layer
0.1wt%~20wt%.Red quantum dot and green quantum dot are due to above-mentioned preferable content range, so as to pass through
The blue light that blue led is sent inspires appropriate feux rouges and green glow, and then it is suitable under high color gamut value to realize display device
Brightness.
Meanwhile the diffusion particle 40 that content is 1~20wt% can also be included in above-mentioned quantum dot light conversion layer, and spread
The refractive index of particle 40 is different from the refractive index of adhesive layer 10.The diffusion particle 40 can change the path of blue incident light, and
And effectively increase propagation path of the blue light in QD-film, enable more red quantum dots 30 and green quantum dot 30
It is enough to be excited by blue light, so as to improve the utilization rate of blue incident light, and obtain more red emission light and green hair
Light is penetrated, adds the brightness of display device.
In luminous film layer structure provided by the invention, it is preferable that the luminous film layer structure is also described including being covered in
Aqueous vapor barrier layer 70 on Diffusion barrier layer 60, its structure are as shown in Figure 4.The material of above-mentioned aqueous vapor barrier layer 70 can be according to existing
Technology is set, it is preferable that the material of the aqueous vapor barrier layer 70 is inorganic oxide or organic oxygen compound.It is more highly preferred to
Ground, aqueous vapor barrier layer 70 are aluminum oxide, silica or silica/chromium complexes.Above-mentioned aqueous vapor barrier layer 70 is to aqueous vapor and oxygen
With good iris action.
As shown in Figures 1 to 4, several luminous film layer structures provided by the invention are listed respectively：As shown in figure 1, the first is sent out
Light film layer structure includes transparent support film layer 50, the and of Diffusion barrier layer 60 for being set in turn in the both side surface of quantum dot light conversion layer
Aqueous vapor barrier layer 70, and it is provided with diffusion particle 40 in transparent support film layer 50, Diffusion barrier layer 60 and aqueous vapor barrier layer 70；Such as
Shown in Fig. 2, second of luminous film layer structure includes the transparent support film for being respectively arranged at the upper and lower surface of quantum dot light conversion layer
Layer 50, diffusion particle 40 is provided with transparent support film layer 50, and transparent support film layer 50 is respectively provided with bulge-structure 510；Such as
Shown in Fig. 3, the third luminous film layer structure includes the transparent support film for being set in turn in the both side surface of quantum dot light conversion layer
Layer 50 and Diffusion barrier layer 60, diffusion particle 40, and transparent support film are provided with transparent support film layer 50 and Diffusion barrier layer 60
Layer 50 is respectively provided with sunk structure 520；As shown in figure 4, the 4th kind of luminous film layer structure includes being set in turn in quantum dot light conversion
Transparent support film layer 50, Diffusion barrier layer 60 and the aqueous vapor barrier layer 70 of the both side surface of layer, transparent support film layer 50, Diffusion barrier layer
60 and aqueous vapor barrier layer 70 in be provided with diffusion particle 40, and transparent support film layer 50 is respectively provided with bulge-structure 510 and depression
Structure 520.
According to another aspect of the present invention, there is provided a kind of backlight module, backlight module include luminous film layer structure and swashed
Device is encouraged, and luminous film layer structure is above-mentioned luminous film layer structure.Wherein, exciter component can be blue led, by blueness
Red quantum dot in the blue light excitation quantum point light conversion layer that LED is sent makes it send feux rouges, and excites green quantum simultaneously
Point makes it send green glow, and high color gamut value is realized finally by RGB three primary colors.
The system of luminous film layer structure provided by the invention and luminous film layer structure is further illustrated below in conjunction with embodiment
Preparation Method.
Embodiment 1
The preparation process for the luminous film layer structure that the present embodiment provides includes：
First, the oligomer that material is polyacrylate and the diluting monomer that material is ETHYL CYANOACRYLATE are mixed to form glue
Body；Then, it is the inorganic oxide nanoparticles of titanium dioxide of rutile structure by material, red quantum dot is (by Tian Jinna
The production of U.S. quantum dot Manufacturing Co., Ltd), green quantum dot (being produced by Tianjin Na Mei quantum dots Manufacturing Co., Ltd) and material
It is added in colloid, stirs for the light trigger of benzoin methyl ether, wherein, the particle diameter of titanium dioxide is 5nm, inorganic oxide
The content of thing nano particle is 10wt%, and the total content of red quantum dot and green quantum dot is 1wt%；Finally, to epoxy glue
Body carries out being cured to form quantum dot light conversion layer.
Embodiment 2
The preparation process for the luminous film layer structure that the present embodiment provides includes：
First, the oligomer that material is polyacrylate and the diluting monomer that material is ETHYL CYANOACRYLATE are mixed to form glue
Body；Then, it is the inorganic oxide nanoparticles of tin ash of rutile structure by material, red quantum dot is (by Tian Jinna
The production of U.S. quantum dot Manufacturing Co., Ltd), green quantum dot (being produced by Tianjin Na Mei quantum dots Manufacturing Co., Ltd), material be
The diffusion particle and material of silica are added in colloid for the light trigger of benzoin methyl ether, are stirred, wherein, dioxy
The particle diameter for changing tin is 45nm, and the contents of inorganic oxide nanoparticles is 20wt%, red quantum dot and green quantum dot it is total
Content is 10wt%, and the content of diffusion particle is 1wt%；Colloid mixture is carried out to be cured to form quantum dot light conversion layer；According to
It is secondary be PET by material transparent support film layer and Diffusion barrier layer that material is methyl acrylate be covered in quantum dot light conversion layer
Both side surface on to form luminous film layer structure.
Embodiment 3
The preparation process for the luminous film layer structure that the present embodiment provides includes：
First, the oligomer that material is polyacrylate and the diluting monomer that material is ETHYL CYANOACRYLATE are mixed to form glue
Body；Then, it is the inorganic oxide nanoparticles of titanium dioxide of rutile structure by material, red quantum dot is (by Tian Jinna
The production of U.S. quantum dot Manufacturing Co., Ltd), green quantum dot (being produced by Tianjin Na Mei quantum dots Manufacturing Co., Ltd), material be
The diffusion particle and material of silica are added in colloid for the light trigger of benzoin methyl ether, are stirred, wherein, dioxy
The particle diameter for changing titanium is 5nm, and the contents of inorganic oxide nanoparticles is 1wt%, and red quantum dot and green quantum dot always contain
Measure as 0.1wt%, the content of diffusion particle is 20wt%；Colloid mixture is carried out to be cured to form quantum dot light conversion layer；According to
It is secondary be PET by material transparent support film layer, the Diffusion barrier layer that material is methyl acrylate and aqueous vapor that material is aluminum oxide
Barrier layer is covered in the both side surface of quantum dot light conversion layer to form luminous film layer structure, wherein transparent support film surface
With raised structures and sunk structure.
Comparative example 1
The preparation process for the luminous film layer structure that this comparative example provides includes：
First, the oligomer that material is polyacrylate and the diluting monomer that material is ETHYL CYANOACRYLATE are mixed to form glue
Body；Then, red quantum dot (being produced by Tianjin Na Mei quantum dots Manufacturing Co., Ltd), green quantum dot (are received into U.S. by Tianjin
Quantum dot Manufacturing Co., Ltd produces), the light trigger that material is benzoin methyl ether and diffusion particle that material is silica
It is added in colloid, stirring forms colloid mixture, wherein, the total content of red quantum dot and green quantum dot is 5wt%, diffusion
The content of particle is 20%；Afterwards, colloid mixture is carried out being cured to form quantum dot light conversion layer.
The luminous film layer structure prepared to embodiment 1 to 3 and comparative example 1 is tested, the chromaticity coordinates (CIE tested out
The coordinate of chromatic diagram) and luminance data it is as follows：
| Luminous film layer structure | Chromaticity coordinates x | Chromaticity coordinates y | Briliancy (cd/m2) |
| Embodiment 1 | 0.2437 | 0.2654 | 366.5 |
| Embodiment 2 | 0.2984 | 0.3321 | 450.7 |
| Embodiment 3 | 0.2985 | 0.3324 | 451.2 |
| Comparative example 1 | 0.2536 | 0.2745 | 389.3 |
The luminous film layer structure for obtaining embodiment 1 is can be seen that from above-mentioned test result to be applied in backlight module
Briliancy can reach 366.5, and chromaticity coordinates value can reach (0.2437,0.2654)；Also, the luminescent film that embodiment 2 to 3 obtains
The briliancy of Rotating fields is significantly greater than the briliancy that comparative example 1 obtains.Also, the chromaticity coordinates value that embodiment 2 to 3 obtains is compared to contrast
Chromaticity coordinates value (0.33,0.33) of the example 1 closer to white light.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：The present invention carries
A kind of luminous film layer structure is supplied, luminous film layer structure includes quantum dot light conversion layer, and quantum dot light conversion layer includes adhesive layer
And quantum dot and inorganic oxide nanoparticles in adhesive layer are scattered in, and the crystal structure of inorganic oxide nanoparticles
For rutile structure.Because the inorganic oxide nanoparticles of rutile structure can allow feux rouges and green glow by and making blue light
Scatter, therefore the light for entering quantum dot light conversion layer is capable of transmission, refraction or the scattering of being chosen property, so that inlet
The light of son point light conversion layer can be more effectively utilized, and then improve the luminous efficiency of quantum dot light conversion layer, while
Enable the display device for being provided with luminous film layer structure that there is high color gamut value and required brightness.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (7)
1. a kind of luminous film layer structure, it is characterised in that the luminous film layer structure includes quantum dot light conversion layer, the quantum
The quantum dot (30) and inorganic oxide that point light conversion layer includes adhesive layer (10) and is scattered in the adhesive layer (10) are received
Rice grain (20), and the crystal structure of the inorganic oxide nanoparticles (20) is rutile structure,
The particle diameter of the inorganic oxide nanoparticles (20) is less than 50nm,
The material for forming the inorganic oxide nanoparticles (20) is tin ash,
The luminous film layer structure also includes the transparent support being arranged at least one surface of the quantum dot light conversion layer
Film layer (50), diffusion particle (40), and the refractive index of the diffusion particle (40) are dispersed with the transparent support film layer (50)
Different from the refractive index of the transparent support film layer (50), the surface of the transparent support film layer (50) has raised structures
And/or sunk structure (520) (510).
2. luminous film layer structure according to claim 1, it is characterised in that the inorganic oxide nanoparticles (20)
Gross mass accounts for 1wt%~20wt% of the gross mass of the quantum dot light conversion layer.
3. luminous film layer structure according to claim 1, it is characterised in that the luminous film layer structure also includes being arranged at
Diffusion barrier layer (60) on the surface of the transparent support film layer (50), diffusion particle is dispersed with the Diffusion barrier layer (60)
(40), and the diffusion particle (40) refractive index be different from the Diffusion barrier layer (60) refractive index.
4. luminous film layer structure according to claim 1, it is characterised in that the quantum dot (30) includes red quantum dot
With the gross mass of green quantum dot, and the quantum dot (30) account for the 0.1wt% of the gross mass of the quantum dot light conversion layer~
10wt%.
5. luminous film layer structure according to claim 1, it is characterised in that also include containing in the quantum dot light conversion layer
The diffusion particle (40) for 1~20wt% is measured, and the refractive index of the diffusion particle (40) is different from the adhesive layer (10)
Refractive index.
6. luminous film layer structure according to claim 3, it is characterised in that the luminous film layer structure also includes being covered in
Aqueous vapor barrier layer (70) on the Diffusion barrier layer (60).
7. a kind of backlight module, it is characterised in that the backlight module includes luminous film layer structure and exciter component, and the hair
Light film layer structure is the luminous film layer structure any one of claim 1 to 6.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220066301A1 (en) * | 2020-09-01 | 2022-03-03 | Canon Kabushiki Kaisha | Wavelength conversion element, light source apparatus, and image projection apparatus |
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| JP6586805B2 (en) * | 2015-07-14 | 2019-10-09 | 大日本印刷株式会社 | Edge light type backlight and liquid crystal display device |
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