CN102654600A - Light guide board and manufacturing method thereof, backlight source module as well as display device - Google Patents
Light guide board and manufacturing method thereof, backlight source module as well as display device Download PDFInfo
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- CN102654600A CN102654600A CN2011102493300A CN201110249330A CN102654600A CN 102654600 A CN102654600 A CN 102654600A CN 2011102493300 A CN2011102493300 A CN 2011102493300A CN 201110249330 A CN201110249330 A CN 201110249330A CN 102654600 A CN102654600 A CN 102654600A
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Abstract
The invention discloses a light guide board and a manufacturing method thereof, a backlight source module as well as a display device, which are designed for a lot of defects existing in the manufacturing method of the conventional light guide board. The manufacturing method of the light guide board provided by the invention comprises the following steps of: placing nanometer magnetic conduction particles on a substrate; arranging the substrate placed with the nanometer magnetic conduction particles in a controllable magnetic field, so that the nanometer magnetic conduction particles are in magnetic line distribution on the substrate; selecting a set area on the substrate; and placing a light passing board above the set area, and keeping the nanometer magnetic conduction particles in the set area in a magnetic line distribution pattern and fixing the nanometer magnetic conduction particles on the light passing board. The manufacturing method provided by the invention can conveniently adjust the distribution of scattered lattice points of the light guide board; and no pollution exists in a manufacturing process, and the process cost is low. Furthermore, the light guide board provided by the invention uses the nanometer magnetic conduction particles as a lattice point material, thereby enhancing scatter and reflection of light, and improving the emergency efficiency of the light guide board.
Description
Technical field
The present invention relates to technical field of liquid crystal display, relate in particular to a kind of LGP and manufacturing approach thereof with the scattering netted dot that is magnetic line of force distribution, and the backlight source module and the display device that comprise this LGP.
Background technology
In the module backlight of LCD (Liquid Crystal Display) industry, LGP is one of critical component.At present, manufacturing method of light conducting board adopts print process or laser ablation method mostly.But all there is certain defective in these methods, are in particular in:
(1) print process and laser ablation method need mask plate (Mask), and the design that changes some LGPs slightly just needs to change a mask plate, and the template change technology of making mask plate is loaded down with trivial details and do not have reproducibility, and the technology cost is also just corresponding to be improved.
(2) print process need be with the astigmatic source of height material (SiO
2With TiO
2) being configured to print slurry, the high astigmatic source material of wherein introducing is prone to cause environmental pollution.
(3) laser ablation method apparatus expensive realizes that cost is high.
Summary of the invention
To the problems referred to above, the present invention provides a kind of manufacturing process the simple and adjustable method for manufacturing light guide plate of LGP scattering netted dot easy design, the LGP that adopts this method to process, and the backlight source module and the display device that are provided with this LGP.
For achieving the above object, manufacturing method of light conducting board of the present invention comprises the steps:
On substrate, place nanometer magnetic conduction particle;
The substrate that is placed with nanometer magnetic conduction particle is placed controllable magnetic field, make said nanometer magnetic conduction particle on said substrate, be the magnetic line of force and distribute;
On said substrate, choose regions; And,
Above said regions, place light-passing board, and the nanometer magnetic conduction particle that will be positioned at said regions keeps magnetic line of force distribution patterns to be fixed on the said light-passing board.
Further, the said substrate that will be placed with nanometer magnetic conduction particle places controllable magnetic field, makes said nanometer magnetic conduction particle on said substrate, be the magnetic line of force and distributes; The concrete realization as follows:
Below said substrate, place and be used to produce the magnetic device in magnetic field;
According to LGP scattering netted dot design requirement, regulate the magnetic field that said magnetic device produces, control said nanometer magnetic conduction particle and on said substrate, form magnetic line of force distribution patterns.
Further, saidly on said substrate, choose regions; The concrete realization as follows:
According to the size and the incidence surface of LGP, choose the distributed areas that are fit to the nanometer magnetic conduction particle of LGP scattering netted dot design requirement on the said substrate;
Remove the nanometer magnetic conduction particle in the non-chosen area on the said substrate.
Further, the said nanometer magnetic conduction particle that will be positioned at said regions keeps magnetic line of force distribution patterns to be fixed on the light-passing board; The concrete realization as follows:
The nanometer magnetic conduction particle that adopts pressure sintering will be positioned at said regions keeps magnetic line of force distribution patterns to be fixed on the said light-passing board.
Preferably, said substrate is a sheet metal.
Preferably, said nanometer magnetic conduction particle is a nano metal ball.
Preferably, the upper surface at said substrate is provided with antistick layer.
For achieving the above object, LGP of the present invention comprises:
Light-passing board; And,
By the scattering netted dot that nanometer magnetic conduction particle constitutes, said scattering netted dot is magnetic line of force distributed and arranged on said light-passing board.
Preferably, said nanometer magnetic conduction particle is a nano metal ball.
Backlight source module of the present invention comprises the LGP of said structure.
Display device of the present invention comprises above-mentioned backlight source module.
The present invention is the LGP scattering netted dot with nanometer magnetic conduction particle, and by substrate, the magnetic line of force that utilizes controllable magnetic field to make nanometer magnetic conduction particle on substrate, form the density gradual change distributes, and the nanometer magnetic conduction particle that will select magnetic line of force zone at last is fixed on the light-passing board.Adopt method for manufacturing light guide plate of the present invention, need not to introduce mask plate, can regulate scattering netted dot easily and distribute, manufacture process is convenient pollution-free, and the technology cost is low, has greatly improved the design cycle of LGP scattering netted dot and the manufacturing cycle of LGP.
In addition, it is scattering netted dot material, especially nano metal ball that LGP according to the invention adopts nanometer magnetic conduction particle, can form good adhesion with LGP after the hot pressing, can effectively strengthen scattering and the reflection of LGP to light, improves the light extraction efficiency of LGP.In addition, LGP according to the invention can not cause raw-material waste in manufacture process, and the nanometer magnetic conduction particle of non-selection area is recyclable and reuse.
Description of drawings
Fig. 1 places the nanometer magnetic conduction particle on the substrate in magnetic field to be the synoptic diagram that the magnetic line of force distributes;
Fig. 2 is the synoptic diagram in selected magnetic line of force zone on said substrate;
Fig. 3 is the synoptic diagram behind the nanometer magnetic conduction particle of removing in the non-selection area;
Fig. 4 adopts pressure sintering nanometer magnetic conduction particle to be pressed on the synoptic diagram of the LGP behind the light-passing board;
Fig. 5 is the synoptic diagram of a specific embodiment of LGP according to the invention when combining LED lamp bar to use.
Embodiment
Below in conjunction with Figure of description the present invention is done further description.
In conjunction with Fig. 1 to Fig. 4, manufacturing method of light conducting board according to the invention comprises the steps:
On substrate 2, place nanometer magnetic conduction particle;
The substrate 2 that is placed with nanometer magnetic conduction particle is placed controllable magnetic field, make said nanometer magnetic conduction particle on said substrate 2, be the magnetic line of force 1 and distribute, as shown in Figure 1;
On said substrate, choose regions 4, as shown in Figure 2;
Above said selection area 4, place light-passing board, and the nanometer magnetic conduction particle that will be positioned at said regions 4 keeps the magnetic line of force 1 distribution patterns to be fixed on the said light-passing board, as shown in Figure 4, promptly accomplish the preparation of LGP 5.
Wherein, the effect of substrate 2 of the present invention is to carry nanometer magnetic conduction particle, to realize the distribution control of magnetic field to nanometer magnetic conduction particle.In addition, be provided with antistick layer, can guarantee that like this all the nanometer magnetic conduction particles in the regions all can be fixed on the said light-passing board at the upper surface of said substrate 2.
As embodiment further of the present invention, in the above-mentioned manufacturing method of light conducting board step, step wherein: the substrate 2 that will be placed with nanometer magnetic conduction particle places controllable magnetic field, makes said nanometer magnetic conduction particle on said substrate 2, be the magnetic line of force and distributes; The concrete realization as follows:
Placement is used to produce the magnetic device 3 in magnetic field below said substrate 2, and is as shown in fig. 1;
According to the design requirement of the scattering netted dot of LGP, regulate the magnetic field that said magnetic device 3 is produced, control said nanometer magnetic conduction particle and on said substrate, form magnetic line of force distribution patterns, the magnetic line of force that is appeared among Fig. 1 concrete embodiment that distributes just.Be not limited only to this; Magnetic device according to the invention can be according to the design requirement of LGP; As: the size of LGP; The characteristics (linear light sorurce or pointolite) of mode of incident light source (straight-down negative or side entering type) and incident light source etc. are regulated magnetic field and are made the formation of nanometer magnetic conduction particle meet the magnetic line of force distribution of design requirement.Wherein, said substrate can be selected any material of not having a magnetic screening action.
As the present invention embodiment further, in the above-mentioned manufacturing method of light conducting board step, step wherein: on said substrate 2, choose regions; The concrete realization as follows:
Elected reserve the magnetic line of force and distribute after; Also need size and incidence surface according to the LGP that designs; Choose the distributed areas that are fit to the nanometer magnetic conduction particle of LGP scattering netted dot design requirement on the said substrate 2, to improve the homogeneity of LGP bright dipping, as shown in Figure 2;
Behind the selected good distributed areas, remove the nanometer magnetic conduction particle of non-selection area on the said substrate 2, as shown in Figure 3 after removing; And the nanometer magnetic conduction particle in territory, non-election district reclaimed, stay to use next time, avoid the waste of material.
As the present invention embodiment further again, in the above-mentioned manufacturing method of light conducting board step, step wherein: the nanometer magnetic conduction particle that will be positioned at said regions keeps magnetic line of force distribution patterns to be fixed on the light-passing board; The concrete realization as follows:
The nanometer magnetic conduction particle that adopts pressure sintering will be positioned at said regions keeps magnetic line of force distribution patterns to be fixed on the said light-passing board, forms LGP as shown in Figure 4.
In the present embodiment; Adopt pressure sintering that described nanometer magnetic conduction particle is fixed on the said light-passing board; Then said substrate should have thermotolerance, is preferably sheet metal, and has one deck antistick layer on this sheet metal; After adopting pressure sintering, the nanometer magnetic conduction particle that can effectively guarantee to be on the said sheet metal all is fixed on the said light-passing board.
Among above-mentioned each embodiment, described nanometer magnetic conduction particle is preferably nano metal ball, and said nano metal ball can effectively improve scattering and the reflection of LGP to light, improves the light extraction efficiency of LGP.
As shown in Figure 4, LGP 5 according to the invention comprises:
Light-passing board; And,
By the scattering netted dot that nanometer magnetic conduction particle constitutes, said scattering netted dot is magnetic line of force distributed and arranged on said light-passing board.
Wherein, in practical application, said nanometer magnetic conduction particle can be nano metal ball, and nano metal ball is as the light guide plate mesh point material, and it has high scattered power and reflectivity.
The distribution of the nanometer magnetic conduction particle shown in Fig. 4 is a specific embodiment of the present invention.Nanometer magnetic conduction distribution of particles on the LGP according to the invention can be regulated according to the characteristics (line source or pointolite) of employed incident light source mode of size, the LGP of LGP (direct-insert or side entering type) and LGP incident light.The process of regulating is promptly through regulating magnetic device, and the magnetic line of force that makes nanometer magnetic conduction particle under the action of a magnetic field that magnetic device produced, form design distributes, again according to the design requirement selection area; Can be prepared into the LGP of design on last nanometer magnetic conduction particle hot pressing to the light-passing board with selection area again.
LGP 5 shown in Figure 4 is suitable for using LED (Light Emitting Diode) pointolite to adopt side entering type incident.Fig. 5 is LGP 5 shown in Figure 4 in use, with the relative position synoptic diagram of LED lamp bar 6.
No matter be to adopt CCFL (Cold Cathode Fluorescent Lamp; Cathode fluorescent tube), EEFL (External Electrode Fluorescent Lamp; External electrode fluorescence lamp) linear light source such as; Or no matter the LGP of pointolites such as LED is to adopt the directly-down light source or the LGP of side entering type light source, all can adopt manufacturing method of light conducting board of the present invention to process.
Backlight source module according to the invention comprises the LGP of structure described in the foregoing description, and is as shown in Figure 4.
Display device according to the invention comprises backlight source module, and the LGP in this backlight source module is a structure LGP described in the foregoing description.
More than; Be merely preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (10)
1. a manufacturing method of light conducting board is characterized in that: comprise the steps:
On substrate, place nanometer magnetic conduction particle;
The substrate that is placed with nanometer magnetic conduction particle is placed controllable magnetic field, make said nanometer magnetic conduction particle on said substrate, be the magnetic line of force and distribute;
On said substrate, choose regions; And,
Above said regions, place light-passing board, and the nanometer magnetic conduction particle that will be positioned at said regions keeps magnetic line of force distribution patterns to be fixed on the said light-passing board.
2. according to the said manufacturing method of light conducting board of claim 1, it is characterized in that the said substrate that will be placed with nanometer magnetic conduction particle places controllable magnetic field, make said nanometer magnetic conduction particle on said substrate, be the magnetic line of force and distribute; The concrete realization as follows:
Below said substrate, place and be used to produce the magnetic device in magnetic field;
According to LGP scattering netted dot design requirement, regulate the magnetic field that said magnetic device produces, control said nanometer magnetic conduction particle and on said substrate, form magnetic line of force distribution patterns.
3. according to the said manufacturing method of light conducting board of claim 1, it is characterized in that, saidly on said substrate, choose regions; The concrete realization as follows:
According to the size and the incidence surface of LGP, choose the distributed areas that are fit to the nanometer magnetic conduction particle of LGP scattering netted dot design requirement on the said substrate;
Remove the nanometer magnetic conduction particle in the non-chosen area on the said substrate.
4. according to the said manufacturing method of light conducting board of claim 1, it is characterized in that the said nanometer magnetic conduction particle that will be positioned at said regions keeps magnetic line of force distribution patterns to be fixed on the light-passing board; The concrete realization as follows:
The nanometer magnetic conduction particle that adopts pressure sintering will be positioned at said regions keeps magnetic line of force distribution patterns to be fixed on the said light-passing board.
5. according to the said manufacturing method of light conducting board of claim 1, it is characterized in that said substrate is a sheet metal.
6. according to any one said manufacturing method of light conducting board in the claim 1 to 5, it is characterized in that, be provided with antistick layer at the upper surface of said substrate.
7. a LGP is characterized in that, comprising:
Light-passing board; And,
By the scattering netted dot that nanometer magnetic conduction particle constitutes, said scattering netted dot is magnetic line of force distributed and arranged on said light-passing board.
8. LGP according to claim 7 is characterized in that, said nanometer magnetic conduction particle is a nano metal ball.
9. a backlight source module is characterized in that, comprises like any one described LGP in claim 7 or 8.
10. a display device is characterized in that, comprises backlight source module as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110249330.0A CN102654600B (en) | 2011-08-26 | 2011-08-26 | Light guide board and manufacturing method thereof, backlight source module as well as display device |
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| CN201110249330.0A CN102654600B (en) | 2011-08-26 | 2011-08-26 | Light guide board and manufacturing method thereof, backlight source module as well as display device |
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| CN102654600A true CN102654600A (en) | 2012-09-05 |
| CN102654600B CN102654600B (en) | 2014-03-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405880A (en) * | 2016-11-21 | 2017-02-15 | 青岛海信电器股份有限公司 | Mangneto refractive index regulating material and film, light guide plate, backlight module and display device |
| CN108051886A (en) * | 2017-12-29 | 2018-05-18 | 厦门市京骏科技有限公司 | A kind of light guide plate containing magnetic quantum dot and preparation method thereof |
| CN108957620A (en) * | 2018-08-01 | 2018-12-07 | 京东方科技集团股份有限公司 | The preparation method of light guide plate and light guide plate, backlight module and display device |
| CN114879437A (en) * | 2022-05-17 | 2022-08-09 | 深圳市火乐科技发展有限公司 | Light uniformizing device, projection optical machine and projection equipment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106405880A (en) * | 2016-11-21 | 2017-02-15 | 青岛海信电器股份有限公司 | Mangneto refractive index regulating material and film, light guide plate, backlight module and display device |
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| CN108051886A (en) * | 2017-12-29 | 2018-05-18 | 厦门市京骏科技有限公司 | A kind of light guide plate containing magnetic quantum dot and preparation method thereof |
| CN108051886B (en) * | 2017-12-29 | 2020-10-20 | 厦门市京骏科技有限公司 | Light guide plate containing magnetic quantum dots and preparation method thereof |
| CN108957620A (en) * | 2018-08-01 | 2018-12-07 | 京东方科技集团股份有限公司 | The preparation method of light guide plate and light guide plate, backlight module and display device |
| US10663649B2 (en) * | 2018-08-01 | 2020-05-26 | Hefei Boe Display Lighting Co., Ltd. | Light guide plate and method for preparing the same, backlight module and display device |
| CN108957620B (en) * | 2018-08-01 | 2020-07-07 | 京东方科技集团股份有限公司 | Light guide plate, preparation method of light guide plate, backlight module and display device |
| CN114879437A (en) * | 2022-05-17 | 2022-08-09 | 深圳市火乐科技发展有限公司 | Light uniformizing device, projection optical machine and projection equipment |
| CN114879437B (en) * | 2022-05-17 | 2023-07-25 | 深圳市火乐科技发展有限公司 | Dodging device, projection optical machine and projection equipment |
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| CN102654600B (en) | 2014-03-26 |
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