CN110346972A - Diffuser plate and its manufacturing method, backlight module, display device - Google Patents
Diffuser plate and its manufacturing method, backlight module, display device Download PDFInfo
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- CN110346972A CN110346972A CN201910566144.6A CN201910566144A CN110346972A CN 110346972 A CN110346972 A CN 110346972A CN 201910566144 A CN201910566144 A CN 201910566144A CN 110346972 A CN110346972 A CN 110346972A
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- accommodating chamber
- quantum dot
- transparent shell
- dot particles
- open region
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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
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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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides a kind of diffuser plate, including transparent shell, and the transparent shell is provided with accommodating chamber, fills quantum dot particles in the accommodating chamber；Transparent shell is preferably hollow glass substrate in the present invention, by quantum dot particles layer in conjunction with diffuser plate, eliminate the cost of regular quantum point particle layer or more two sides setting barrier film, glass substrate is provided with accommodating chamber, the accommodating chamber includes one or more layers closed cavity, quantum dot particles are filled in closed cavity, the accommodating chamber is dried using vacuum machine and vacuumize process, the open region of the glass substrate is closed using containment member simultaneously, ensure that quantum dot particles are in vacuum environment in accommodating chamber, transparent shell effectively obstructs water and oxygen intrudes on quantum dot particles, diffuser plate both sides of the edge area is avoided to form an indigo plant Bian Xianxiang, realize that the high colour gamut of backlight module is shown, reduce the production cost of backlight module.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of diffuser plate and its manufacturing method, backlight module, display dresses
It sets.
Background technique
The back light source technique of quantum dot can make liquid crystal display panel realize 110% standard color gamut, be much higher than traditional liquid crystal
90%~100% standard color gamut of display panel, is widely used.
As shown in Figure 1a, conventional quantum dot backlight module includes glue frame 101, optical film material 102, quantum dot particles layer
103, diffuser plate 104, light source 105, reflector plate 106 and backboard 107, wherein glue frame 101 includes right side front frame 1011, left side
Front frame 1012, right side center 1013 and left side center 1014, quantum dot particles layer 103 are located at 104 top of diffuser plate；Such as figure
Shown in 1b, quantum dot particles layer 103 includes the first barrier film 1031, the second barrier film 1033, and is sandwiched in the first barrier film
1031 and the second quantum dot particles layer 1032 between barrier film 1033, the first barrier film 1031 and the production of the second barrier film 1033
It is at high cost；10321 anti-moisture of quantum dot particles and high-temperature resistance are poor in quantum dot particles layer 1032,1031 He of the first barrier film
Second barrier film 1033 and backlight module both sides of the edge area cannot obstruct water oxygen completely, for a long time using, cut it is bad, high
In the case where temperature, high humidity or water oxygen, the quantum dot particles in both sides of the edge area can fail, and cause both sides of the edge area that cannot pass through indigo plant
Light inspires red-green glow, is directed through blue light, forms a blue side, marginal zone can directly contribute liquid crystal display panel picture and show
It is bad, it causes screen to generate color difference, the phenomenon that four sides are spread unchecked, directly affects the display quality of liquid crystal display device.Such as Fig. 1 c institute
Show, light emitting diode (Light Emitting Diode, abbreviation LED) uses quantum pipe skill in light source 105 in the prior art
Art is coated with quantum dot vacuum tube 1052 plus one in 1051 leading portion of LED lamp strip structure, need default quantum dot vacuum tube
1042 assembling space, the reflector plate 106 for being unfavorable for the design of the narrow frame appearance of backlight module, and not cooperating to light into
The effective reflection of row.
Therefore, it is necessary to design a kind of new structure, to solve in backlight module in the prior art in quantum dot particles layer
The higher cost of barrier film, and barrier film cannot completely obstruct water oxygen, especially both sides of the edge area quantum dot particles are for a long time
Using, cut bad, high temperature, high humidity or water oxygen in the case where can generate failure, both sides of the edge area will form a blue side, make
Color difference is generated at liquid crystal display panel screen, and picture shows bad, and quantum vacuum pipe is added in LED lamp strip structure, no
Conducive to the design of the narrow frame of backlight module, and the technical issues of the reflector plate not cooperated effectively reflects light.
Summary of the invention
The present invention provides a kind of diffuser plate and its manufacturing method, backlight module, display device, is able to solve in the prior art
In backlight module in quantum dot particles layer barrier film it is at high cost, and barrier film cannot completely obstruct water oxygen, especially two sides
Edge area quantum dot particles can generate failure, two sides in the case where using for a long time, cutting bad, high temperature, high humidity or water oxygen
Marginal zone will form a blue side, and liquid crystal display panel screen is caused to generate color difference, picture show it is bad, and in LED light bar
Quantum dot particles vacuum tube is added in structure, the reflector plate pair for being unfavorable for the design of the narrow frame of backlight module, and not cooperating
The technical issues of light is effectively reflected.
To solve the above problems, technical solution provided by the invention is as follows:
A kind of diffuser plate includes transparent shell, and the transparent shell is provided with accommodating chamber, fills quantum in the accommodating chamber
Point particle.
According to one preferred embodiment of the present invention, the transparent shell is integrally formed, wherein the accommodating chamber is located at described
The inside of transparent shell.
According to one preferred embodiment of the present invention, the transparent shell is assembled formation, wherein the transparent shell includes the
One substrate and the second substrate being oppositely arranged with the first substrate, the accommodating chamber are located at the first substrate and described
Between the second substrate.
According to one preferred embodiment of the present invention, transparent shell side or two sides are provided with open region, and the open region is set
It is equipped with containment member, the containment member includes sealant.
According to one preferred embodiment of the present invention, the cross sectional shape of the accommodating chamber include rectangle, parallelogram, diamond shape,
It is one or more in triangle, polygon or irregular planar graph.
According to above-mentioned diffuser plate, a kind of diffusion board fabrication method is provided, which comprises production transparent shell, it is described
Accommodating chamber is arranged in transparent shell；Open region, the open region setting sealing structure is arranged in the side of the transparent shell or two sides
Part；Quantum dot particles solution is poured to the accommodating chamber by open region, or in the receiving inner cavity surface coating weight point grain
Son；The accommodating chamber has filled quantum dot particles, carries out vacuumize process to the accommodating chamber using vacuum machine, and use sealing
Open region described in component enclosure.
According to one preferred embodiment of the present invention, the containment member includes sealant.
According to one preferred embodiment of the present invention, the accommodating chamber has filled quantum dot particles, using vacuum machine to the appearance
Chamber of receiving carries out vacuumize process, and the step of closing the open region using containment member specifically includes: vacuum machine is opened with described
After the docking of mouth region, using quantum dot particles in the dry accommodating chamber of vacuum machine, drop to water vapor concentration in the accommodating chamber
Preset value；After the completion of the accommodating chamber is dry, air in the accommodating chamber is excluded using vacuum machine, while using containment member
Close the open region.
Above-mentioned purpose according to the present invention also provides a kind of backlight module, comprising: backboard, including bottom plate and side plate, it is described
Bottom plate and the side plate form accommodating chamber；Reflector plate is located above the bottom plate, leaks out from the accommodating chamber for
Light reflects back again.
Light source is arranged above reflector plate；Such as above-mentioned diffuser plate, it is located above the light source, for sending out the light source
Scatter incident light out；Optical film material is located above the diffuser plate, pre- for diffuser plate injection diverging light to be gathered in
If outgoing in range, and promote the brightness of the backlight module；Glue frame is arranged in the backboard two sides.
The present invention also provides a kind of display devices, including above-mentioned backlight module；The display device further includes display panel
And driving circuit.
The invention has the benefit that transparent shell is preferably hollow glass substrate, by quantum dot particles layer and diffuser plate
In conjunction with, eliminate regular quantum point particle layer up and down two sides setting barrier film cost, glass substrate is provided with accommodating chamber, described
Accommodating chamber includes one or more layers closed cavity, and quantum dot particles are filled in closed cavity, using vacuum machine to the receiving
Chamber is dried and vacuumize process, while the open region of the glass substrate is closed using containment member, it is ensured that accommodating chamber
Middle quantum dot particles are in vacuum environment, and transparent shell effectively obstructs water and oxygen intrudes on quantum dot particles, avoid expanding
Fall apart one indigo plant Bian Xianxiang of both sides of the edge area formation, realizes the display of the high colour gamut of backlight module, is carrying on the back in quantum dot particles layer
Multiple LED lamp strip structures are set under plate orthographic projection, avoids adding quantum dot particles vacuum tube in light source, is conducive to backlight module
The design of narrow frame.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of embodiment or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only some of invention
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 a is back light module unit structure schematic diagram in the prior art；
Fig. 1 b is quantum dot particles schematic diagram of a layer structure in the prior art；
Fig. 1 c is LED lamp strip structure schematic diagram in the prior art；
Fig. 2 a provides a kind of diffusion board structure schematic diagram for the embodiment of the present application；
Fig. 2 b provides another diffusion board structure schematic diagram for the embodiment of the present application；
Fig. 2 c provides another diffusion board structure schematic diagram for the embodiment of the present application；
Fig. 2 d provides another diffusion board structure schematic diagram for the embodiment of the present application；
Fig. 3 provides a kind of diffuser plate manufacturing process schematic diagram for the embodiment of the present application；
Fig. 4 provides a kind of back light module unit structure schematic diagram for the embodiment of the present application.
Specific embodiment
The explanation of following embodiment is referred to the additional illustration, the particular implementation that can be used to implement to illustrate the present invention
Example.The direction term that the present invention is previously mentioned, such as [on], [under], [preceding], [rear], [left side], [right side], [interior], [outer], [side]
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, rather than to
The limitation present invention.The similar unit of structure is with being given the same reference numerals in the figure.
The present invention is directed to the higher cost of barrier film in quantum dot particles layer in backlight module in the prior art, and barrier film
Cannot completely obstruct water oxygen, especially both sides of the edge area quantum dot particles use for a long time, cut bad, high temperature, high humidity or
Failure can be generated in the case where person's water oxygen, both sides of the edge area will form a blue side, liquid crystal display panel screen is caused to generate color
Difference, picture show bad, and add quantum vacuum pipe in LED lamp strip structure, are unfavorable for setting for the narrow frame of backlight module
Meter, and the technical issues of the reflector plate not cooperated effectively reflects light, the present embodiment is able to solve the defect.
Diffuser plate includes transparent shell in the present invention, and transparent shell is provided with accommodating chamber, fills quantum dot grain in accommodating chamber
Son, the light come out from light source passes through the refraction of quantum dot particles, incident point light source is made to be converted into area source, sufficiently scatters, real
Existing light source is softer, more evenly.
As shown in Figure 2 a, the embodiment of the present application provides a kind of diffusion board structure schematic diagram, and diffuser plate 201 is integrally formed；
Diffuser plate 201 includes transparent shell 2011, and the surface and bottom surface of transparent shell 2011 are respectively arranged with light-emitting surface 20111 and enter light
Face 20112, light-emitting surface 20111 and incidence surface 20112 are oppositely arranged, and are plane or male and fomale(M&F), are set in transparent shell 2011
It is equipped with the first accommodating chamber 2012, the cross sectional shape of the first accommodating chamber 2012 includes rectangle, parallelogram, diamond shape, triangle, more
It is one or more in side shape or irregular planar graph.Quantum dot particles 20121 are filled in first accommodating chamber 2012；Quantum
Point particle 20121 is evenly distributed in the first accommodating chamber 2012, and light enters diffuser plate 201 from incidence surface 20112, then passes through
Quantum dot particles 20121 reflect, and finally project from light-emitting surface 20111.
The material of transparent shell 2011 is preferably glass in the present embodiment, and 2011 side of transparent shell is provided with open region
20113,20113 one side of open region is used to fill the entrances of quantum dot particles 20121, on the other hand for vacuum machine to the
The interface that one accommodating chamber 2012 vacuumizes.Open region 20113 and the first accommodating chamber 2012 penetrate through, and quantum dot particles 20121 are from opening
Mouth region 20113 enters, and conveys in 2012 predeterminated position of accommodating chamber, according to actual needs, can also be in 2011 two sides of transparent shell
It is respectively provided with open region, or open region is set elsewhere, shape, position and the quantity of open region are without limitation.
20113 surface of open region is provided with containment member 2013, and 2013 surface of containment member is provided with sealing flange, sealing
Flange around open region 20113 seal, the surface that containment member 2013 is contacted with transparent shell 2011 may be configured as plane or
Scraggly face, the material of containment member 2013 are preferably high-intensitive sealant；Containment member 2013 can be used for preventing
Foreign matter enters the first accommodating chamber 2012, and foreign matter includes liquid, gas or solid particle, mainly prevents water and oxygen.
Open region can be arranged in transparent shell 2011 with both ends or elsewhere in the present embodiment, and open region is provided with sealing
Component, for obstructing water oxygen；Transparent shell 2011 can also be transparent plastics, and light can be without hindrance from transparent plastics
Through, wherein transparent plastic has certain intensity, certain supporting role can be played, for supporting above diffuser plate
Optical film material.
Transparent shell 2011 is preferably hollow glass substrate in the present embodiment, without the two sides setting up and down of quantum dot particles layer
Barrier film reduces the cost of quantum dot particles tunic piece in diffuser plate, and glass substrate is provided with accommodating chamber, and accommodating chamber includes one
Layer or multilayer closed cavity, quantum dot particles are filled in closed cavity, are dried and are taken out to accommodating chamber using vacuum machine and is true
Vacancy reason, while using the open region of containment member closed glass substrate, it is ensured that quantum dot particles are in vacuum in accommodating chamber
Environment, simultaneously effective exclusion of water and oxygen, avoid diffuser plate both sides of the edge area from forming an indigo plant Bian Xianxiang, improve diffuser plate
The efficiency of the refracted light of both sides of the edge area quantum dot particles.
As shown in Figure 2 b, the embodiment of the present application provides another diffusion board structure；Diffuser plate 202 is integrally formed；Diffusion
Plate 202 includes transparent shell 2021, and the surface and bottom surface of transparent shell 2021 are respectively arranged with light-emitting surface 20211 and incidence surface
20212, light-emitting surface 20211 and incidence surface 20212 are oppositely arranged, and are plane or male and fomale(M&F), setting in transparent shell 2021
There are the second accommodating chamber 2022 and third accommodating chamber 2023, fills quantum respectively in the second accommodating chamber 2022 and third accommodating chamber 2023
Point particle 20221 and quantum dot particles 20231；Quantum dot particles 20221 and quantum dot particles 20231 are respectively uniformly distributed
In two accommodating chambers 2022 and third accommodating chamber 2023, light enters diffuser plate 202 from incidence surface 20212, then passes through quantum dot
Particle 20221 and quantum dot particles 20231 reflect, and finally project from light-emitting surface 20211.
The material of transparent shell 2021 is preferably glass in the present embodiment, and 2021 side of transparent shell is provided with open region
20213,20213 one side of open region is used to fill the entrance of quantum dot particles 20221 and quantum dot particles 20231, another
Aspect is for vacuum machine to the interface vacuumized in the second accommodating chamber 2022 and third accommodating chamber 2023.Open region 20213
It is penetrated through with the second accommodating chamber 2022 and third accommodating chamber 2023, quantum dot particles enter from open region 20213, and conveying is held second
Receive 2023 predeterminated position of chamber 2022 and third accommodating chamber.According to actual needs, it can also be respectively provided in 2021 two sides of transparent shell
Open region, or open region is set elsewhere, shape, position and the quantity of open region without limitation, while transparent shell
2021 can also be arranged multilayer accommodating chamber.
20213 surface of open region is provided with containment member 2024, containment member 2013 in containment member 2024 and Fig. 2 a
Structure is similar, and for preventing foreign matter from entering the first accommodating chamber 2012, foreign matter includes liquid, gas or solid particle, is mainly prevented
Water and oxygen.
Open region can be arranged in transparent shell 2021 with both ends or elsewhere in the present embodiment, and open region is provided with
Containment member 2024, containment member 2024 is for obstructing water oxygen；Transparent shell 2021 can also be transparent plastics, and light can be with
It is without hindrance to be penetrated from transparent plastics, wherein transparent plastic has certain intensity, can play certain supporting role,
For supporting the optical film material above diffuser plate.
As shown in Figure 2 c, the embodiment of the present application provides another diffusion board structure；Diffuser plate 203 is integrally formed；Diffusion
Plate 203 includes transparent shell 2031, and the surface and bottom surface of transparent shell 2031 are respectively arranged with light-emitting surface 20311 and incidence surface
20312, light-emitting surface 20311 and incidence surface 20312 are oppositely arranged, and are plane or male and fomale(M&F), are provided in transparent shell 2031
4th accommodating chamber 2032, the 5th accommodating chamber 2033 and the 6th accommodating chamber 2034, the 4th accommodating chamber 2032,2033 and of the 5th accommodating chamber
6th accommodating chamber 2034 is located on the same floor, and can also be located at different layers.Between 4th accommodating chamber 2032 and the 5th accommodating chamber 2033
First barrier film 20323 is set, and the first barrier film 20323 is provided with first through hole 20324, and first through hole 20324 is for being connected to
4th accommodating chamber 2032 and the 5th accommodating chamber 2033.The second barrier of setting between 5th accommodating chamber 2033 and the 6th accommodating chamber 2034
Film 20334, the second barrier film 20334 are provided with the second through-hole 20335, and the second through-hole 20335 is for being connected to the 5th accommodating chamber
2033 and the 6th accommodating chamber 2034, accommodating chamber is not restricted to 3 accommodating chambers in the embodiment of the present application, can also be arranged more
It is a.
Quantum dot particles are filled respectively in 4th accommodating chamber 2032, the 5th accommodating chamber 2033 and the 6th accommodating chamber 2034
20321, quantum dot particles 20331 and quantum dot particles 20341；Light enters diffuser plate 203 from incidence surface 20312, then passes through
Quantum dot particles refraction is crossed, is finally projected from light-emitting surface 20311.
The material of transparent shell 2031 is preferably glass in the present embodiment, and 2031 side of transparent shell is provided with open region
20313, open region 20213 and the 6th accommodating chamber 2034 penetrate through, and quantum dot particles enter from open region 20313, are transported to the 4th
Accommodating chamber 2032, the 5th accommodating chamber 2033 and 2034 predeterminated position of the 6th accommodating chamber.
20313 surface of open region is provided with containment member 2035, containment member 2013 in containment member 2035 and Fig. 2 a
Structure is similar, for preventing foreign matter from entering the 4th accommodating chamber 2032, the 5th accommodating chamber 2033 and the 6th accommodating chamber 2034, foreign matter packet
Liquid, gas or solid particle are included, water and oxygen are mainly prevented.
Open region can be arranged in transparent shell 2031 with both ends or elsewhere in the present embodiment, and open region is provided with close
Component is sealed, for obstructing water oxygen；Transparent shell 2031 can also be transparent plastics, and light can be without hindrance from transparent plastics
Multilayer accommodating chamber can also be arranged in middle transmission, transparent shell 2031.
As shown in Figure 2 d, the embodiment of the present application provides another diffusion board structure, and diffuser plate 204 includes transparent shell
2041, transparent shell 2041 is provided with the 7th accommodating chamber 2042, and 2042 cross sectional shape of the 7th accommodating chamber includes rectangle, parallel four side
It is one or more in shape, diamond shape, triangle, polygon or irregular planar graph.Transparent shell 2041 in the present embodiment
For assembled formation, transparent shell 2041 is similar with the structure of transparent shell 2011 in Fig. 2 a, and transparent shell 2041 includes the first base
Plate 20411 and the second substrate 20412 being oppositely arranged with first substrate 20411, the 7th accommodating chamber 2042 are located at first substrate
Between 20411 and the second substrate 20412.Quantum dot particles 20421, transparent shell 2,041 1 are provided in 7th accommodating chamber 2042
Side is provided with open region 20415, and open region 20415 is provided with containment member 2043.The surface and bottom surface of transparent shell 2041 point
It is not provided with light-emitting surface 20413 and incidence surface 20414.
The transparent shell 2041 can be set with both ends or open region is arranged elsewhere in the present embodiment, and open region is all provided with
It is equipped with containment member, for obstructing water oxygen；Transparent shell 2041 can also be transparent plastics, and light can be without hindrance from transparent
Plastics in penetrate, wherein transparent plastic have certain intensity, certain supporting role can be played, for support diffusion
Multilayer accommodating chamber can also be arranged in optical film material above plate, transparent shell 2041.
According to above-mentioned diffuser plate, a kind of diffusion board fabrication method is provided, as shown in Figure 3, comprising:
S301: accommodating chamber is arranged in production transparent shell, the transparent shell；
S302: open region is arranged in the side of the transparent shell or two sides, and containment member is arranged in the open region；
S303: quantum dot particles solution is poured to the accommodating chamber by open region, or is applied in the receiving inner cavity surface
Cloth quantum dot particles；
S304: the accommodating chamber has filled quantum dot particles, carries out vacuumize process to the accommodating chamber using vacuum machine,
And the open region is closed using containment member.
Preferably, the containment member includes sealant.
Preferably, the accommodating chamber has filled quantum dot particles, carries out vacuumizing place to the accommodating chamber using vacuum machine
Reason, and the step of closing the open region using containment member specifically includes:
After vacuum machine is docked with the open region, using quantum dot particles in the dry accommodating chamber of vacuum machine, make described
Water vapor concentration drops to preset value in accommodating chamber.
After the completion of the accommodating chamber is dry, air in the accommodating chamber is excluded using vacuum machine, while using sealing structure
Part closes the open region.
Above-mentioned purpose according to the present invention provides a kind of backlight module 400, as shown in Figure 4, comprising:
Backboard 406, including bottom plate 4061 and side plate 4062, bottom plate 4061 and side plate 4062 form the 8th accommodating chamber 407,
In, side plate 4062 includes the first side plate 40621 and the second side plate 40622.
Reflector plate 405 is located at 4061 top of bottom plate, for being reflected back again light is leaked out from the 8th accommodating chamber 407
It goes.
Light source 404 is arranged above reflector plate 405, and light source 404 includes multiple lamp bars 4041 and is fixed in lamp bar 4041
LED light, LED lamp strip structure 4041 is of same size, avoids adding quantum dot particles vacuum tube, is conducive to the narrow side of backlight module
The design of frame.
Above-mentioned diffuser plate 403 is located at 404 top of light source, and diffuser plate 403 includes transparent shell 4032, is set to transparent shell
9th accommodating chamber 4031 in 4032, and quantum dot particles 4033 in the 9th accommodating chamber 4031 are set to, diffuser plate 403 is for making light
The incident light that source 404 issues makes incident point light source be converted into area source by repeatedly refraction, reflection and scattering, sufficiently dissipates
It penetrates, realizes that light source is softer, more evenly.
Optical film material 402 is located at 403 top of diffuser plate, for the injection diverging light of diffuser plate 403 to be gathered in preset range
Interior outgoing, and promote the brightness of backlight module 400；Optical diaphragm 402 generally includes prismatic lens and brightness enhancement film；Prismatic lens are optically focused
The light of dispersion is concentrated on using total reflection and the law of refraction and is emitted to improve the outgoing in certain angular range by device
Brightness in range improves the brightness of backlight module 400.
Glue frame 401, setting is in 406 two sides of backboard, and glue frame 401 is including in the first front frame 4011, the second front frame 4012, first
Frame 4013 and the second center 4014, wherein the first center 4013 includes the first barricade, and perpendicular to the of the first barricade
One support plate；Second center 4014 includes the second barricade, and by the second support plate perpendicular to the second barricade；First barricade and
The inside of second barricade is bonded the outer surface of the first side plate 40621 and the second side plate 40622 respectively, the first support plate and second
Fagging branch is carried on the display panel on backlight module 400；First front frame 4011 and the second front frame 4012 are bonded in first respectively
4014 surface of frame 4013 and the second center prevents liquid, gas or solid particle invasion for protecting backlight module 400.
The present invention also provides a kind of display devices, including above-mentioned backlight module；The display device further includes display panel
With corresponding driving circuit, wherein display panel is placed in the first support plate and the second support plate of backlight module center, is driven
The non-display area of both sides of the display panel or display panel is arranged in dynamic circuit, for driving source drive and grid in display panel
Pole driving, is transmitted on data-signal to display panel, to drive display panel to be shown.
Transparent shell is preferably that hollow glass substrate is eliminated by quantum dot particles layer in conjunction with diffuser plate in the present invention
The cost of two sides setting barrier film, glass substrate are provided with accommodating chamber above and below regular quantum point particle layer, and the accommodating chamber includes
One or more layers closed cavity, quantum dot particles are filled in closed cavity, and the accommodating chamber is dried using vacuum machine
And vacuumize process, while closing using containment member the open region of the glass substrate, it is ensured that quantum dot grain in accommodating chamber
Son is in vacuum environment, and transparent shell effectively obstructs water and oxygen intrudes on quantum dot particles, avoids diffuser plate two sides
Edge area forms an indigo plant Bian Xianxiang, realizes the display of the high colour gamut of backlight module, the production cost of backlight module is reduced, in quantum dot
Multiple LED lamp strip structures are arranged in particle layer under backboard orthographic projection, avoid adding quantum dot particles vacuum tube in light source, be conducive to
The design of backlight module narrow frame.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (10)
1. a kind of diffuser plate, which is characterized in that including transparent shell, the transparent shell is provided with accommodating chamber, the accommodating chamber
Interior filling quantum dot particles.
2. diffuser plate according to claim 1, which is characterized in that the transparent shell is integrally formed, wherein the appearance
Chamber of receiving is located at the inside of the transparent shell.
3. diffuser plate according to claim 1, which is characterized in that the transparent shell is assembled formation, wherein described
Bright shell includes first substrate and the second substrate that is oppositely arranged with the first substrate, and the accommodating chamber is located at described the
Between one substrate and the second substrate.
4. diffuser plate according to any one of claims 1 to 3, which is characterized in that transparent shell side or two sides are provided with
Open region, the open region are provided with containment member, and the containment member includes sealant.
5. diffuser plate according to any one of claims 1 to 3, which is characterized in that the cross sectional shape of the accommodating chamber includes square
It is one or more in shape, parallelogram, diamond shape, triangle, polygon or irregular planar graph.
6. a kind of diffusion board fabrication method, which is characterized in that the described method includes:
Transparent shell is made, accommodating chamber is arranged in the transparent shell；
Open region is arranged in the side of the transparent shell or two sides, and containment member is arranged in the open region；
Quantum dot particles solution is poured to the accommodating chamber by open region, or in the receiving inner cavity surface coating weight point grain
Son；
The accommodating chamber has filled quantum dot particles, carries out vacuumize process to the accommodating chamber using vacuum machine, and using close
Seal open region described in component enclosure.
7. according to the method described in claim 6, it is characterized in that, the containment member includes sealant.
8. according to the method described in claim 6, using vacuum it is characterized in that, the accommodating chamber has filled quantum dot particles
Machine carries out vacuumize process to the accommodating chamber, and the step of closing the open region using containment member specifically includes:
After vacuum machine is docked with the open region, using quantum dot particles in the dry accommodating chamber of vacuum machine, make the receiving
Water vapor concentration drops to preset value in chamber；
After the completion of the accommodating chamber is dry, air in the accommodating chamber is excluded using vacuum machine, while sealing using containment member
Close the open region.
9. a kind of backlight module characterized by comprising
Backboard, including bottom plate and side plate, the bottom plate and the side plate form accommodating chamber；
Reflector plate is located above the bottom plate, for reflecting back again light is leaked out from the accommodating chamber；
Light source is arranged above reflector plate；
Diffuser plate according to any one of claims 1 to 5 is located above the light source, for sending out the light source
Scatter incident light out；
Optical film material is located above the diffuser plate, goes out within a preset range for the diffuser plate to be projected diverging light aggregation
It penetrates, and promotes the brightness of the backlight module；
Glue frame is arranged in the backboard two sides.
10. a kind of display device, which is characterized in that including backlight module as claimed in claim 9；
The display device further includes display panel and driving circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910566144.6A CN110346972A (en) | 2019-06-27 | 2019-06-27 | Diffuser plate and its manufacturing method, backlight module, display device |
| PCT/CN2019/127748 WO2020258784A1 (en) | 2019-06-27 | 2019-12-24 | Diffusion plate and manufacturing method therefor, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910566144.6A CN110346972A (en) | 2019-06-27 | 2019-06-27 | Diffuser plate and its manufacturing method, backlight module, display device |
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| CN110346972A true CN110346972A (en) | 2019-10-18 |
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| CN201910566144.6A Pending CN110346972A (en) | 2019-06-27 | 2019-06-27 | Diffuser plate and its manufacturing method, backlight module, display device |
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| WO2020258784A1 (en) | 2020-12-30 |
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