CN107167871A - A kind of quantum dot light guide plate manufacture equipment and manufacture method - Google Patents
A kind of quantum dot light guide plate manufacture equipment and manufacture method Download PDFInfo
- Publication number
- CN107167871A CN107167871A CN201710549418.1A CN201710549418A CN107167871A CN 107167871 A CN107167871 A CN 107167871A CN 201710549418 A CN201710549418 A CN 201710549418A CN 107167871 A CN107167871 A CN 107167871A
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- China
- Prior art keywords
- guide plate
- light guide
- quantum dot
- diffusion sheet
- roller
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- 239000002096 quantum dot Substances 0.000 title claims abstract description 105
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000009792 diffusion process Methods 0.000 claims abstract description 111
- 238000001125 extrusion Methods 0.000 claims abstract description 43
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 39
- 239000000203 mixture Substances 0.000 claims description 27
- 239000000843 powder Substances 0.000 claims description 21
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 19
- 238000007493 shaping process Methods 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 239000004611 light stabiliser Substances 0.000 claims description 6
- 238000005461 lubrication Methods 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 6
- 239000006081 fluorescent whitening agent Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000010030 laminating Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 235000013358 Solanum torvum Nutrition 0.000 description 2
- 240000002072 Solanum torvum Species 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- YEXOWHQZWLCHHD-UHFFFAOYSA-N 3,5-ditert-butyl-4-hydroxybenzoic acid Chemical class CC(C)(C)C1=CC(C(O)=O)=CC(C(C)(C)C)=C1O YEXOWHQZWLCHHD-UHFFFAOYSA-N 0.000 description 1
- 229910005898 GeSn Inorganic materials 0.000 description 1
- 239000004425 Makrolon Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 150000001559 benzoic acids Chemical class 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- -1 hexadecyl ester Chemical class 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0041—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided in the bulk of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0065—Manufacturing aspects; Material aspects
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention proposes a kind of quantum dot light guide plate manufacture equipment, and the guide-lighting board raw material of light guide plate extrusion die extrusion, quantum dot shower nozzle is arranged between light guide plate extrusion die and roller set, to the sub- point of light guide plate emitted dose before roller set is by light guide plate and diffusion sheet pressing；Diffusion sheet reel exports diffusion sheet to the light guide plate for spraying quantum dot, before diffusion sheet is contacted with light guide plate, diffusion sheet is heated to by soft state by heater, diffusion sheet and the light guide plate of soft state are pressed together into roller set, diffusion sheet is fitted in quantum dot figure layer.Uniform by light guide plate made from the device and method of the present invention, without air between each film layer, laminating is close, the utilization rate of light is not only increased, while reducing thickness；And cost is reduced, structure is optimized, technique is simplified.
Description
Technical field
The present invention relates to backlight technology field, more particularly to a kind of quantum dot light guide plate manufacture equipment further relates to a kind of amount
Son point method for manufacturing light guide plate.
Background technology
At this stage, side entrance back module is generally comprised：Backboard, heat sink, LED lens, light guide plate, blooming piece,
Heat sink is screwed on backboard, and LED is fixed on heat sink by heat-conducting glue band, and reflection is followed successively by backboard
Piece, light guide plate, quantum film, diffusion sheet, prism, diffusion sheet.
Wherein, line source is converted into area source by light guide plate, and quantum film is excited through blue light sends into white light, diffusion sheet and with
The soft light of upper diaphragm.
The appearance of quantum dot light guide plate so that the structure of backboard further simplifies, but the production of existing quantum dot light guide plate
Complex process, step is more, therefore improves production cost, how to simplify the production technology of quantum dot light guide plate, simplifies manufacture
The structure of equipment, is current urgent problem to be solved.
The content of the invention
To solve above-mentioned deficiency of the prior art, the present invention proposes a kind of quantum dot light guide plate manufacture equipment and side
Method.
The technical proposal of the invention is realized in this way：
A kind of quantum dot light guide plate manufacture equipment, including light guide plate extrusion die, roller set, quantum dot shower nozzle, diffusion sheet
Reel；
The guide-lighting board raw material of light guide plate extrusion die extrusion, quantum dot shower nozzle be arranged on light guide plate extrusion die and roller set it
Between, to the sub- point of light guide plate emitted dose before roller set is by light guide plate and diffusion sheet pressing；
Diffusion sheet reel exports diffusion sheet to the light guide plate for spraying quantum dot, before diffusion sheet is contacted with light guide plate,
Diffusion sheet is heated to by soft state by heater, diffusion sheet and the light guide plate of soft state are pressed together on one into roller set
Rise, diffusion sheet is fitted in quantum dot figure layer；
Roller set includes three disk rollers, respectively the first disk roller, the second disk roller and the 3rd disk roller, the first disk roller are arranged side by side
Light guide plate and diffusion sheet are pressed together with the second disk roller, texture structure is provided with the second disk roller, for being printed to light guide plate
Brush texture, the second disk roller and the 3rd disk roller further press quantum dot light guide plate and diffusion sheet.
The invention also provides a kind of quantum dot method for manufacturing light guide plate, light guide plate extrusion die extrusion is by fully thawing
The guide-lighting board raw material of mixing, quantum dot shower nozzle is arranged between light guide plate extrusion die and roller set, in roller set by light guide plate
To the sub- point of light guide plate emitted dose before being pressed with diffusion sheet；
Diffusion sheet reel exports diffusion sheet to the light guide plate for spraying quantum dot, before diffusion sheet is contacted with light guide plate,
Diffusion sheet is heated to by soft state by heater, diffusion sheet and the light guide plate of soft state are pressed together on one into roller set
Rise, diffusion sheet is fitted in quantum dot figure layer；
Roller set includes three disk rollers, respectively the first disk roller, the second disk roller and the 3rd disk roller, the first disk roller are arranged side by side
Light guide plate and diffusion sheet are pressed together with the second disk roller, texture structure is provided with the second disk roller, for being printed to light guide plate
Brush texture, the second disk roller and the 3rd disk roller further press quantum dot light guide plate and diffusion sheet.
The production process of above-mentioned diffusion sheet comprises the following steps：
Step one, this material is prepared：This material is used as from PS or PC or PMMA plastic grains；
Step 2, makes optics master batch：By weight, this material described in 100 parts of steps one is chosen, then chooses 3~8 parts of powder
Agent composition, optics master batch is made after this material of selection and powder mixture uniform stirring are mixed；Powder mixture includes expanding
Powder, anti-UV agent, oxidant, light stabilizer and lubrication dispersing agent；
Step 3, extrusion molding：By weight, 100 parts of this material, 1~25 part of optics master batch, 1-25 parts of GPPS, 1-9 are chosen
Part quantum dot, extrusion shaping machine is put into after this material selected, optics master batch, quantum dot, GPPS mixture are stirred
In, mixture is melted and stirred in extrusion shaping machine, diffusion sheet material is molded by extrusion shaping machine, and pass through
Diffusion sheet reel exports diffusion sheet to the light guide plate for spraying quantum dot.
Alternatively, the powder mixture includes by weight：8-12 parts of diffusant, anti-1-3 parts of UV agent, oxidant 2-4
Part, 0.5-2 parts of light stabilizer, 0.5-2 parts of lubrication dispersing agent.
Alternatively, the step 2, makes in optics master batch step, and powder mixture also includes fluorescent whitening agent, according to
The powder mixture weight ratio, adds the fluorescent whitening agent of 0.1-3 parts by weight in powder mixture.
Alternatively, in the step 2, the step of making optics master batch, this material of selection and powder mixture are uniformly stirred
Mix and put into after mixing in dual-screw pelletizer, the prilling temperature in optics master batch, dual-screw pelletizer is made at 160 degree to 230
Between degree, granulation pressure is in 3Mpa between 13.5Mpa.
Alternatively, in the step 3, it is provided in the outlet of extrusion shaping machine before traction quantum dot diffusion sheet material
3 capable disk rollers, respectively upper roll wheel, middle disk roller, lower roll wheel；
Upper roller wheel load quantum dot diffusion sheet incidence surface, central roll wheel load quantum dot diffusion sheet exiting surface, lower roll wheel assists central roll
Wheel compresses quantum dot diffusion sheet material；
After quantum dot diffusion sheet material is molded, disk roller is rotated, and affects sheet material to expand during moving in quantum dot
The incidence surface and exiting surface of discrete piece suppress optical grains, and optical grains are determined by the lines of upper roll wheel, middle disk roller, lower roll wheel
It is fixed.
Alternatively, the middle disk roller is set to mirror roller, and upper roll wheel or lower roll wheel are timess in concave convex texture or minute surface
It is a kind of.
Alternatively, in the step 3, extrusion molding step, the plate forming temperature in extrusion shaping machine at 270 degree extremely
Between 300 degree, plate forming pressure is in 3Mpa between 13.5Mpa.
Alternatively, the quantum dot diffusion sheet density is 1.04~1.06g/cm3, quantum dot diffusion sheet thickness is：0.8mm
≤ quantum dot diffusion sheet thickness≤3mm.
The beneficial effects of the invention are as follows：
(1) light guide plate made from is uniform, without air between each film layer, and laminating is close, not only increases the utilization rate of light,
Reduce thickness simultaneously；
(2) cost is reduced, optimizes structure, simplifies technique.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of principle schematic of quantum dot light guide plate manufacture equipment of the invention；
Fig. 2 is quantum dot diffusion sheet flow sheet of the invention：
Fig. 3 is the quantum dot diffusion sheet structure chart obtained according to the method for the present invention：
Fig. 4 is the quantum dot diffusion sheet pattern forming schematic diagram obtained according to the method for the present invention；
Each component names are as follows in figure：
1st, 2,3 be disk roller, and 4 be guide-lighting board raw material extrusion die, and 5 be quantum dot shower nozzle, and 6 be diffusion sheet reel, and 7 be extrusion
Light guide plate to be formed, 11 be diffusion sheet incidence surface；12 be diffusion sheet exiting surface；13 be quantum dot；14 be upper roll wheel；15 be central roll
Wheel；16 be lower roll wheel；17 be quantum diffusion sheet material；
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, the quantum dot light guide plate manufacture equipment of the present invention includes：Light guide plate extrusion die 4, roller set (1,
2nd, 3), quantum dot shower nozzle 5, diffusion sheet reel 6.
Guide-lighting board raw material 7 by fully melting mixing is extruded by light guide plate extrusion die 4, quantum dot shower nozzle 5 is arranged on
Between light guide plate extrusion die 4 and roller set, light guide plate enters before roller set by quantum dot is sprayed onto light guide plate by quantum dot shower nozzle 5
Surface, thickness is at 30 μm -80 μm.
Diffusion sheet reel 6 exports diffusion sheet to the light guide plate for spraying quantum dot, before diffusion sheet is contacted with light guide plate,
Diffusion sheet is heated to by soft state by heater, diffusion sheet and the light guide plate of soft state are pressed together on one into roller set
Rise, diffusion sheet is fitted in quantum dot figure layer.For example, above-mentioned heater is mounted in the baking rifle in front of diffusion sheet.
Roller set includes three disk rollers, respectively the first disk roller 1, the second disk roller 2 and the 3rd disk roller 3, first are arranged side by side
The disk roller 2 of disk roller 1 and second presses together light guide plate and diffusion sheet, texture structure is provided with the second disk roller, for guide
Tabula rasa prints texture, and the second disk roller 2 and the 3rd disk roller 3 further press quantum dot light guide plate and diffusion sheet, to composite construction
Light guide plate repaired and be molded.First roller 1 and the second roller 2, the gap between the second roller 2 and third roll 3 can
Adjust, make the light guide plate of shaping between 0.5mm-6mm.
The invention also provides a kind of quantum dot method for manufacturing light guide plate, extruded by light guide plate extrusion die 4 by abundant
Melt the guide-lighting board raw material of mixing, quantum dot shower nozzle 5 is arranged between light guide plate extrusion die 4 and roller set, light guide plate enters
Quantum dot is sprayed onto light guide plate surface by quantum dot shower nozzle 5 before roller set, thickness is at 30 μm -80 μm.
Diffusion sheet reel 6 exports diffusion sheet to the light guide plate for spraying quantum dot, before diffusion sheet is contacted with light guide plate,
Diffusion sheet is heated to by soft state by heater, diffusion sheet and the light guide plate of soft state are pressed together on one into roller set
Rise, diffusion sheet is fitted in quantum dot figure layer.
Roller set includes three disk rollers, respectively the first disk roller 1, the second disk roller 2 and the 3rd disk roller 3, first are arranged side by side
The disk roller 2 of disk roller 1 and second presses together light guide plate and diffusion sheet, texture structure is provided with the second disk roller, for guide
Tabula rasa prints texture, and the second disk roller 2 and the 3rd disk roller 3 further press quantum dot light guide plate and diffusion sheet, to composite construction
Light guide plate repaired and be molded.First roller 1 and the second roller 2, the gap between the second roller 2 and third roll 3 can
Adjust, make the light guide plate of shaping between 0.5mm-6mm.
The manufacturing process of above-mentioned diffusion sheet, as shown in Fig. 2 comprising the following steps：
Step one, this material is prepared：From PS (polystyrene plastics) or PC (makrolon) or PMMA (polymethyls
Sour methyl esters) plastic grain is used as this material.
Step 2, makes optics master batch：By weight, 100 parts of this material described in step one are chosen, then choose 3~8 parts of pulvis
Mixture, after this material of selection and powder mixture uniform stirring are mixed in input dual-screw pelletizer, is made gross weight ratio
For 103-108 parts of optics master batches；Powder mixture includes diffusant, anti-UV agent, oxidant, light stabilizer and lubrication dispersing agent,
Powder mixture includes by weight：8-12 parts of diffusant, anti-1-3 parts of UV agent, 2-4 parts of oxidant, 0.5-2 parts of light stabilizer,
0.5-2 parts of lubrication dispersing agent.To realize the whitening effect of optics master batch, it is preferable that make in optics master batch step, pulvis mixing
Thing also includes fluorescent whitening agent, and according to above-mentioned powder mixture weight ratio, the glimmering of 0.1-3 parts by weight is added in powder mixture
Optical brightener.
Above-mentioned diffusant selects organosilicon light diffusing agent, is a kind of light diffusing agent for belonging to organic, is connected with silicon oxygen bond,
The polymer microballoon of 3-D solid structure, less than oleic series, such as Japan SHIN-ETSU HANTOTAI organosilicon light diffusing agent KMP-590.
Above-mentioned anti-UV agent mainly include benzoic acids, benzophenone, benzotriazole and part hindered amines, than
Such as UV-531,2-hydroxy-4-n-octoxybenzophenone, UV-2908, the positive hexadecyl ester of 3,5- di-tert-butyl-4-hydroxybenzoic acids
Deng.
Step 3, extrusion molding：By weight, 100 parts of this material are chosen from this material, 1~25 part of optics master batch, choosing is chosen
1-25 parts of GPPS (General Purpose Polystyrenre) are taken, 1-9 parts of quantum dots are chosen；By this material selected, quantum dot, GPPS mixing
After thing stirs in input extrusion shaping machine, mixture is melted and stirred during the High Temperature Rotating of extrusion shaping machine
It is even, quantum dot is molded by extrusion shaping machine and spreads sheet material.
Then, diffusion sheet is exported by diffusion sheet reel 6 to the light guide plate for spraying quantum dot, with light guide plate in roller set
Press together.
Quantum dot of the present invention is the nano-fluorescent grain made by semi-conducting material, the property with diffusant
Can, it is different from general fluorescent material, quantum dot wavelength is 550nm-620nm, lateral size of dots is respectively 2mm, 4mm, 6mm, because
Quantum dot particle contains GeSn, therefore growth temperature≤300 DEG C.
As shown in Figures 3 and 4, it is provided for drawing quantum dot diffusion sheet material 17 moves ahead 3 in the outlet of extrusion shaping machine
Individual disk roller, respectively upper roll wheel 14, middle disk roller 15, lower roll wheel 16.Upper roller wheel load quantum dot diffusion sheet incidence surface 11, middle disk roller 15
Quantum dot diffusion sheet exiting surface 12 is pressed, lower roll wheel 16 assists central roll wheel to compress quantum dot diffusion sheet material 17.
After quantum dot diffusion sheet material 17 is molded, disk roller is rotated, and affects sheet material can be in quantum dot during moving
The incidence surface 11 and exiting surface 12 of diffusion sheet suppress optical grains, and optical grains pass through upper roll wheel 14, middle disk roller 15, lower roll wheel
16 lines is determined.Wherein, middle disk roller 15 is set to mirror roller, during upper roll wheel 14 or lower roll wheel 16 are concave convex texture or minute surface
It is any.Therefore, quantum dot diffusion sheet lines has a variety of, respectively two sides concave convex texture, a face minute surface another side asperities
Road, two sides are all minute surfaces.
Above-mentioned steps two, make optics master batch the step of in, the prilling temperature in dual-screw pelletizer preferably at 160 degree extremely
Between 230 degree, granulation pressure is preferably in 3Mpa between 13.5Mpa.
In above-mentioned steps three, extrusion molding step, it is considered to the plate in the melting point of quantum dot and resistance to temperature, extrusion shaping machine
Material forming temperature is preferably between 270 degree to 300 degree, and plate forming pressure is preferably in 3Mpa between 13.5Mpa.
Quantum dot diffusion sheet density is 1.04~1.06g/cm3, quantum dot diffusion sheet melt temperature≤300 DEG C are extruded into
Between about 270 DEG C to 300 DEG C of type temperature.
The quantum dot diffusion sheet thickness that the inventive method is made is：0.8mm≤quantum dot diffusion sheet thickness≤3mm.
The quantum dot light guide plate manufacture equipment cost of the present invention is low, and simple in construction, processing step is few, obtained guide-lighting thickness of slab
Degree is uniform, without air between each film layer, and laminating is close, the utilization rate of light is not only increased, while reducing thickness.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of quantum dot light guide plate manufacture equipment, it is characterised in that including light guide plate extrusion die, roller set, quantum dot spray
Head, diffusion sheet reel；
The guide-lighting board raw material of light guide plate extrusion die extrusion, quantum dot shower nozzle is arranged between light guide plate extrusion die and roller set,
To the sub- point of light guide plate emitted dose before roller set is by light guide plate and diffusion sheet pressing；
Diffusion sheet reel exports diffusion sheet to the light guide plate for spraying quantum dot, before diffusion sheet is contacted with light guide plate, passes through
Diffusion sheet is heated to soft state by heater, and diffusion sheet and the light guide plate of soft state are pressed together into roller set,
Diffusion sheet is set to fit in quantum dot figure layer；
Roller set includes being arranged side by side three disk rollers, respectively the first disk roller, the second disk roller and the 3rd disk roller, the first disk roller and the
Two disk rollers press together light guide plate and diffusion sheet, and texture structure is provided with the second disk roller, for printing line to light guide plate
Reason, the second disk roller and the 3rd disk roller further press quantum dot light guide plate and diffusion sheet.
2. a kind of quantum dot method for manufacturing light guide plate, it is characterised in that light guide plate extrusion die extrusion is by fully melting mixing
Guide-lighting board raw material, quantum dot shower nozzle is arranged between light guide plate extrusion die and roller set, in roller set by light guide plate with expanding
To the sub- point of light guide plate emitted dose before discrete piece pressing；
Diffusion sheet reel exports diffusion sheet to the light guide plate for spraying quantum dot, before diffusion sheet is contacted with light guide plate, passes through
Diffusion sheet is heated to soft state by heater, and diffusion sheet and the light guide plate of soft state are pressed together into roller set,
Diffusion sheet is set to fit in quantum dot figure layer；
Roller set includes being arranged side by side three disk rollers, respectively the first disk roller, the second disk roller and the 3rd disk roller, the first disk roller and the
Two disk rollers press together light guide plate and diffusion sheet, and texture structure is provided with the second disk roller, for printing line to light guide plate
Reason, the second disk roller and the 3rd disk roller further press quantum dot light guide plate and diffusion sheet.
3. a kind of quantum dot method for manufacturing light guide plate as claimed in claim 2, it is characterised in that the production of the diffusion sheet
Journey comprises the following steps：
Step one, this material is prepared：This material is used as from PS or PC or PMMA plastic grains；
Step 2, makes optics master batch：By weight, this material described in 100 parts of steps one is chosen, then chooses 3~8 parts of pulvis and is mixed
Compound, optics master batch is made after this material of selection and powder mixture uniform stirring are mixed；Powder mixture include diffusant,
Anti- UV agent, oxidant, light stabilizer and lubrication dispersing agent；
Step 3, extrusion molding：By weight, 100 parts of this material, 1~25 part of optics master batch, 1-25 parts of GPPS, 1-9 deals are chosen
It is sub-, put into after this material selected, optics master batch, quantum dot, GPPS mixture are stirred in extrusion shaping machine,
Mixture is melted and stirred in extrusion shaping machine, diffusion sheet material is molded by extrusion shaping machine, and pass through diffusion
Piece reel exports diffusion sheet to the light guide plate for spraying quantum dot.
4. a kind of quantum dot method for manufacturing light guide plate as claimed in claim 3, it is characterised in that the powder mixture is by weight
Amount ratio includes：8-12 parts of diffusant, anti-1-3 parts of UV agent, 2-4 parts of oxidant, 0.5-2 parts of light stabilizer, lubrication dispersing agent 0.5-2
Part.
5. a kind of quantum dot method for manufacturing light guide plate as claimed in claim 4, it is characterised in that the step 2, makes light
Learn in master batch step, powder mixture also includes fluorescent whitening agent, according to the powder mixture weight ratio, in powder mixture
The fluorescent whitening agent of middle addition 0.1-3 parts by weight.
6. a kind of quantum dot method for manufacturing light guide plate as claimed in claim 3, it is characterised in that the step 2, makes light
In the step of learning master batch, after this material of selection and powder mixture uniform stirring are mixed in input dual-screw pelletizer, it is made
Prilling temperature in optics master batch, dual-screw pelletizer between 160 degree to 230 degree, granulation pressure 3Mpa to 13.5Mpa it
Between.
7. a kind of quantum dot method for manufacturing light guide plate as claimed in claim 3, it is characterised in that in the step 3, is being squeezed
The outlet for going out forming machine is provided for drawing 3 forward disk rollers of quantum dot diffusion sheet material, respectively upper roll wheel, middle disk roller,
Lower roll wheel；
Upper roller wheel load quantum dot diffusion sheet incidence surface, central roll wheel load quantum dot diffusion sheet exiting surface, lower roll wheel assists central roll wheel load
Tight quantum dot diffusion sheet material；
After quantum dot diffusion sheet material is molded, disk roller is rotated, and affects sheet material can be in quantum dot diffusion sheet during moving
Incidence surface and exiting surface suppress optical grains, the lines that optical grains pass through upper roll wheel, middle disk roller, lower roll wheel is determined.
8. a kind of quantum dot method for manufacturing light guide plate as claimed in claim 7, it is characterised in that the middle disk roller is set to mirror
Face roller, upper roll wheel or lower roll wheel are any of concave convex texture or minute surface.
9. a kind of quantum dot method for manufacturing light guide plate as claimed in claim 3, it is characterised in that the step 3, is extruded into
In type step, the plate forming temperature in extrusion shaping machine between 270 degree to 300 degree, plate forming pressure in 3Mpa extremely
Between 13.5Mpa.
10. a kind of quantum dot method for manufacturing light guide plate as claimed in claim 3, it is characterised in that the quantum dot diffusion sheet
Density is 1.04~1.06g/cm3, quantum dot diffusion sheet thickness is：0.8mm≤quantum dot diffusion sheet thickness≤3mm.
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