CN109049594A - A kind of method for manufacturing light guide plate and its manufacturing device of online hot-rolling pressure - Google Patents
A kind of method for manufacturing light guide plate and its manufacturing device of online hot-rolling pressure Download PDFInfo
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- CN109049594A CN109049594A CN201810819151.8A CN201810819151A CN109049594A CN 109049594 A CN109049594 A CN 109049594A CN 201810819151 A CN201810819151 A CN 201810819151A CN 109049594 A CN109049594 A CN 109049594A
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- guide plate
- transparent panel
- rolling pressure
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005098 hot rolling Methods 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 6
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 230000003712 anti-aging effect Effects 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 238000004781 supercooling Methods 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract description 11
- 238000012545 processing Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000003856 thermoforming Methods 0.000 abstract description 4
- 238000007731 hot pressing Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 3
- 229920000426 Microplastic Polymers 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002087 whitening effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000012603 secondary packaging material Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0075—Light guides, optical cables
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- Planar Illumination Modules (AREA)
Abstract
The invention discloses the method for manufacturing light guide plate and its manufacturing device of a kind of online hot-rolling pressure, use coextrusion, hot pressing integrated forming technique.I.e. first molten plastic granules, are squeezed out, the optical lens isotropic disk of roll-forming smooth surface by die head；By the cooling transparent panel of cooling frame；Heater is placed after cooling frame and reheats transparent panel, softens surface；The pressure roller that specific structure is had finally by surface extrudes micro-structure, formed light conductive plate in transparent plate surface.It can reduce the manufacturing cost of rear rolling die using this technology；It solves bad caused by conventional light guiding plate after-processing technology, greatly promotes forming light guide plate efficiency；Light guide plate thermoforming effect is improved, the molding molding structure of light guide plate surface of institute is excellent, and light efficiency and the uniformity are obviously improved.
Description
Technical field
The present invention designs light guide plate extrusion molding and following process field, forms hot-rolling pressure online more particularly to light guide plate
Manufacturing method.
Background technique
Light guide plate is a kind of with optical grade plate made of PMMA, PS, PC, is furnished with several special forms on surface or the inside
Shape has high light transmission rate, is widely used in display backlight mould group, in LED illumination lamp.Light is passing through optical sheet
Total reflection phenomenon can be generated when material, so that light goes out light from opposite side completely, without going out light from front.It is furnished on optics plate specific
Light guiding points, when illumination is mapped to light guiding points, light guiding points destroy the total reflection of light, change the direction of propagation of optical path, so that light
Reflected from the front of plate, according to the arrangements of light path design light guiding points, it can be achieved that the uniformly light-emitting of light guide plate.
Existing light guide plate light guiding points processing method is broadly divided into three roll-in methods and rear process processing method, the original of three roll-in methods
Reason is light guiding points roll-in structure on the direct cloth of three rollers under extrusion die, when the material of high temperature viscous state is extruded on three rollers, horse
The upper light guide plate for being cooled and shaped surface and there is light guide structure.Due to material property, the method may be only available for PS it is this elasticity compared with
Low, the lower light guide plate of processing temperature is made.The straight forming surface texture on three rollers, temperature is higher at this time, and whole plate is softer, table
Face tension is larger, and three rollers and the light guide plate temperature difference are too big, therefore pressure and temperature is very big on the forming influence of conduit point, and plate is answered
Power is very big, and light guide structure is more easily damaged, and causes the molding light guide plate light efficiency of institute not high, yield is not high.
To PMMA, PC, these elasticity are big, and surface hardness is big, and the high material of processing temperature, three roll-ins cannot be such that micro-structure has
It is transferred in plate face to effect, therefore another processing method can only be taken, be as first shaped to the smooth transparent panel in surface, then lead to
Later process carries out secondary operation to its light guiding points, and such as silk-screen, laser engraving, hot pressing, then process processing is required to carry, determine
Position, design site.It has passed through secondary operation, can generate secondary bad, consume secondary packaging material, production efficiency and quality drop significantly
It is low.
With the rapid development of science and technology, the method for manufacturing light guide plate of online hot-rolling pressure also obtains technological improvement, still
The method for manufacturing light guide plate of present online hot-rolling pressure is substantially reduced using bad caused by conventional light guiding plate after-processing technology
Forming light guide plate efficiency；Light guide plate thermoforming effect is reduced, the molding molding structure of light guide plate surface of institute is poor, light efficiency
The lower problem with the uniformity.
Summary of the invention
In view of the above-mentioned problems, the present invention provides the method for manufacturing light guide plate and its manufacturing device of a kind of online hot-rolling pressure,
Solves the method for manufacturing light guide plate of present online hot-rolling pressure using bad caused by conventional light guiding plate after-processing technology, greatly
Forming light guide plate efficiency is reduced greatly；Reduce light guide plate thermoforming effect, the molding molding structure of light guide plate surface of institute compared with
The lower problem of difference, light efficiency and the uniformity.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: the following steps are included:
1, by screw extruder molten mixture, and molten mixture is expressed to die head, 2, by die head extrusion melt,
The smooth transparent panel in surface is rolled by three, 3, by cooling frame hardening by cooling transparent panel, 4, again quick by heating furnace
Heating transparent plate upper and lower surface, until be higher than viscoelastic transition temperature, so that transparent plate surface viscosity flow, 5, by with micro-structure
Afterwards pressure roller to transparent panel carry out roll-in, formed light guide plate, 6, by the second cooling frame again cool down light guide plate.
Further, the screw extruder is made of electric heater and screw rod, can adjust in real time barrel temperature, screw rod into
To speed.
Further, the molten mixture is that the high molecular material of viscous state separately contains additive.
Further, the high molecular material are as follows: PS, PC, PMMA, MS.
Further, the additive are as follows: spread powder, fluorescent powder, whitening powder, titanium dioxide, silica, barium sulfate,
Silicone oil, anti-aging modified material.
Further, the die head includes mould storehouse, includes heater, and exposed mould mouth can adjust the shape of mould mouth by bolt
Shape.
Further, three roller diameter is 30-50cm, passage of heat is included, using water as heat-conducting medium.
Further, the passage of heat is annularly arranged around main shaft.
Further, the transparent panel surface roughness is less than 0.5Ra, and transmissivity is greater than 90%.
Further, the long 2-10m of the cooling frame carries out the transparent panel completely cooling.
Further, the heating furnace includes heating tunnel, infrared heater.
Further, the heating tunnel is equipped with temperature sensing in Tunnel Endpoint side with 2 guide rail settings in two sides
Device, for measuring plate face temperature.
Further, the infrared heater issues 0.75-1.5 μm of infrared ray, and setting is adjustable in transparent panel upper and lower
Power, from plate face distance 1-10cm.
Further, for the transparent panel after infrared heater heating, the surface temperature come out of the stove should be greater than material
The viscoelastic transition temperature of material.
Further, pressure roller diameter is 15-25cm after described, is controlled and is gone up and down with cylinder, includes passage of heat, using water as
Heat-conducting medium.
Further, the micro-structure are as follows: 1, mirror surface；2, fixed diameter is that the light guiding points of 0.1mm-0.5mm are uniformly distributed；
3, diameter is the light guiding points of 0.05-0.5mm, is equidistantly uniformly distributed according to diameter is ascending, or presses specific rule with fixed diameter
Restrain uneven distribution；4, the positive rectangular pyramid of a length of 0.1-1mm is uniformly distributed.
Further, the light guide plate is transparent panel through supercooling, using being tempered again, after being pressed using chilling roller,
Just forming surface has the optical sheet of micro-structure.
By the above-mentioned description of this invention it is found that compared to the prior art, the present invention has the advantage that
The present invention a kind of method for manufacturing light guide plate and its manufacturing device of online hot-rolling pressure use coextrusion, hot pressing integration
Moulding process, i.e., first molten plastic granules, is squeezed out, the optical lens isotropic disk of roll-forming smooth surface by die head；By
Cooling frame cools down transparent panel；Heater is placed after cooling frame and reheats transparent panel, softens surface；It is had finally by surface
The pressure roller of specific structure extrudes micro-structure in transparent plate surface, and formed light conductive plate can reduce rear rolling die using this technology
Manufacturing cost；It solves bad caused by conventional light guiding plate after-processing technology, greatly promotes forming light guide plate efficiency；It improves
Light guide plate thermoforming effect, the molding molding structure of light guide plate surface of institute is excellent, and light efficiency and the uniformity are obviously improved.
Detailed description of the invention
The apparatus for manufacturing light guide plate schematic diagram of the online hot-rolling pressure of Fig. 1.
Wherein: 1, screw extruder, 2, hopper, 3, machine barrel, 4, vacuum pump, 5, die head, 6, three rollers, 7, cooling frame, 8 tractions
It takes turns, 9, heating furnace, pressure roller after 10, the 11, second cooling frame, 12, traction wheel.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1
A kind of method for manufacturing light guide plate of online hot-rolling pressure, by 1 molten mixture of screw extruder, and molten mixture is squeezed
It is pressed onto die head 5, by 5 extrusion melt of die head, is pressed into the smooth transparent panel in surface by three rollers 6, it is cooling hard by cooling frame 7
Change transparent panel, by heating furnace 9 again quick heating transparent plate upper and lower surface, until being higher than viscoelastic transition temperature, so that transparent panel
Surface viscosity flow carries out roll-in to transparent panel by the rear pressure roller 10 with micro-structure, forms light guide plate, pass through the second cooling frame
11 cool down light guide plate again, and screw extruder 1 is made of electric heater and screw rod, can adjust 3 temperature of machine barrel, screw rod feeding in real time
Speed, molten mixture are that the high molecular material of viscous state separately contains additive, high molecular material are as follows: PS, PC, PMMA, MS, addition
Agent are as follows: spread powder, fluorescent powder, whitening powder, titanium dioxide, silica, barium sulfate, silicone oil, anti-aging modified material, die head 5
Mould storehouse is included, heater is included, exposed mould mouth can adjust the shape of mould mouth by bolt, and three rollers, 6 diameter is 30-50cm, include
Passage of heat, using water as heat-conducting medium, passage of heat is annularly arranged around main shaft, and transparent panel surface roughness is less than 0.5Ra,
Transmissivity is greater than 90%, and cooling frame 7 is 2-10m long, carries out to the transparent panel completely cooling, and heating furnace 9 includes heating tunnel, red
Outer heating device, heating tunnel, in two sides, are equipped with temperature sensor in Tunnel Endpoint side, for measuring with 2 guide rail settings
Plate face temperature, infrared heater issue 0.75-1.5 μm of infrared ray, are arranged in transparent panel upper and lower, power-adjustable, from plate face
Distance 1-10cm, after infrared heater heating, the viscoelastic that the surface temperature come out of the stove should be greater than material turns transparent panel
Temperature, rear 10 diameter of pressure roller are 15-25cm, are controlled and are gone up and down with cylinder, include passage of heat, micro- using water as heat-conducting medium
Structure are as follows: 1, mirror surface；2, fixed diameter is that the light guiding points of 0.1mm-0.5mm are uniformly distributed；3, diameter is leading for 0.05-0.5mm
Luminous point is equidistantly uniformly distributed according to diameter is ascending, or with fixed diameter by specific regular uneven distribution；4, a length of 0.1-
The positive rectangular pyramid of 1mm is uniformly distributed, and light guide plate is transparent panel through supercooling, using being tempered again, after being pressed using chilling roller,
Just forming surface has the optical sheet of micro-structure.
Embodiment 2
As shown in Figure 1, a kind of apparatus for manufacturing light guide plate of online hot-rolling pressure, comprising the following steps:
Step 1, material feedstock, auxiliary material are sent into screw rod, are forced into molten condition by host more piece machine barrel 3, in this way to protect
Card material melts completely, mixes, is squeezed out by die head 5, until three rollers 6 are pressed into the smooth transparent panel in surface.
The step of this is produces transparent panel as enters the previous step of hot-rolling pressure.For example, the material is optical grade PS
Or PMMA or PC, the machine barrel 3 have annular electric heater outside, in machine barrel 3, need to follow the side that stepped heating is gradually heated up
Method too fast cannot be heated to material to molten condition, while should ensure that each barrel temperature is constant, for another example, before the die head 5
There is strainer, with impurity screening, mould storehouse and several flow-guiding channels are furnished in die head 5, the material of molten condition is squeezed with specific shape
Out to lower roll, central roll center, for another example, lower roll, central roll, upper roller are chrome-faceds, guarantee the smoothness and hardness of roller surface, roller
Inside there is the passage of heat of spiral ring, heat-conducting medium is poured into from one end, is flowed out from the other end, two ends are connected to the temperature controller
Middle circulation, since plate temperature is more much higher than roller temperature, three rollers, 6 surface needs to radiate, for another example, the temperature controller according to
Actual conditions adjust temperature, if temperature is excessively high, plate meeting roll banding, and if temperature is too low, plate meeting bending deformation, for another example, institute
Stating heat-conducting medium is water, because the specific heat capacity of water is maximum, heat exchange effect is best, and under high-pressure situations, water energy is at 105 DEG C or less
It does not boil, water should carry out sofening treatment, prevent from generating scale in roller.
Step 2, transparent panel is sent into the infrared heater by traction, carries out prompt tempering processing, disappear after cooling
It prepares except the surface stress of plate, while for hot-rolling pressure.
Due to being to be heated on line, therefore the central axes of whole line must avoid plate from walking, cause be tempered to obtaining in good order
Plate is heated in the process, unbalance stress and bending deformation, in addition, being layered in the continuous tunnel furnace of heater with the pony roll with bearing
Lower section, when transparent panel process of passing through tunnel furnace, pony roll can be rotated with transparent panel, prevent plowing from transparent panel, between pony roll, with tunnel
The top of furnace, is furnished with infrared heating pipe, and the infrared heating pipe power adjustable quickly add to two surfaces above and below transparent panel
Heat monitors the temperature after transparent panel is come out of the stove, it is ensured that after transparent plate surface is come out of the stove until being equipped with temperature sensor in continuous tunnel furnace end
Temperature can reach the viscoelastic transition temperature of material, provide precondition for subsequent roll-in processing.
Step 3, hot-rolling pressure device is directly reached by the transparent panel of heating, carries out the roll-forming processing of two-sided structure.
There is passage of heat in the hot-rolling pressure device, using water as heat-conducting medium, water inlet connect temperature with water outlet both ends
Control machine is spent, water temperature is controlled by the temperature controller, so that roller temperature is controlled, due to using water as heat-conducting medium, in high pressure
Under, not more than 105 DEG C of temperature, and the surface temperature of transparent panel is at 150 DEG C -220 DEG C, the actually described hot-rolling pressure device
It is the effect for playing radiating and cooling, when the high transparent panel of temperature touches the low hot-rolling pressure device of temperature, the hot-rolling
Pressure device applies pressure to transparent panel, leads to viscous state, the transparent plate surface of softening is adhered to rapidly roller surface, then cools down
It shrinks, roll release, specific micro-structure can be transferred on transparent panel on roll surface, so that transparent panel becomes hard surface with leaded light
The light guide plate of point.
After hot-rolling pressure device, several air guns are housed, are blown between light guide plate and roll surface, first is that dropping light guide plate rapidly
Temperature molding, second is that apply certain air pressure to light guide plate surface, auxiliary light guide plate is detached from roller, to make light guiding points will not be because of
By tension and plate on roller tractive force and stretcher strain so that light guide plate surface be pressurized it is more balanced, effectively reduce bad point.
It should be understood that the pressure roller is continuous rolling, there is individual transmission device, passed on pressure roller equipped with pressure
Sensor can monitor the pressure of pressure roller, and the spacing by adjusting pressure roller adjusts the pressure that pressure roller applies transparent panel, pressure mistake
Small, light guiding points are not easily molded, or even sliding roller, and pressure is excessive, and transparent panel can bending deformation.
Step 4, hot-rolling pressure is completed, cooling light guide plate.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of method for manufacturing light guide plate of online hot-rolling pressure, which comprises the following steps:
1. by screw extruder (1) molten mixture, and molten mixture is expressed to die head (5)；
2. being pressed into the smooth transparent panel in surface by three rollers (6) by die head (5) extrusion melt；
3. passing through cooling frame (7) hardening by cooling transparent panel；
4. passing through heating furnace (9) quick heating transparent plate upper and lower surface again, until being higher than viscoelastic transition temperature, so that transparent panel table
Face viscosity flow；
6. carrying out roll-in to transparent panel by the rear pressure roller (10) with micro-structure, light guide plate is formed；
7. cooling down light guide plate again by the second cooling frame (11).
2. the method for manufacturing light guide plate of online hot-rolling pressure according to claim 1, which is characterized in that the screw extruder
(1) it is made of electric heater and screw rod, machine barrel (3) temperature, screw rod feed speed can be adjusted in real time, the molten mixture is viscous
The high molecular material of fluidised form separately contains additive, the high molecular material are as follows: PS, PC, PMMA, MS, spread powder, brighten fluorescent powder
Powder, titanium dioxide, silica, barium sulfate, silicone oil, anti-aging modified material.
3. the method for manufacturing light guide plate of online hot-rolling pressure according to claim 1, which is characterized in that in the die head (5)
Storehouse containing mould, includes heater, and exposed mould mouth can adjust the shape of mould mouth by bolt.
4. the method for manufacturing light guide plate of online hot-rolling pressure according to claim 1, which is characterized in that three roller (6) is straight
Diameter is 30-50cm, includes passage of heat, using water as heat-conducting medium.
5. the method for manufacturing light guide plate of online hot-rolling pressure according to claim 7, which is characterized in that the passage of heat is in
Ring-type is arranged around main shaft.
6. the method for manufacturing light guide plate of online hot-rolling pressure according to claim 1, which is characterized in that the transparent plate surface
Roughness is less than 0.5Ra, and transmissivity is greater than 90%, the long 2-10m of the cooling frame (7), cool down completely to the transparent panel,
The heating furnace (9) includes heating tunnel, infrared heater, and heating tunnel is arranged with 2 guide rails in two sides, in Tunnel Endpoint
Side is equipped with temperature sensor, and for measuring plate face temperature, the infrared heater issues 0.75-1.5 μm of infrared ray, setting
In transparent panel upper and lower, power-adjustable, from plate face distance 1-10cm.
7. the method for manufacturing light guide plate of online hot-rolling pressure according to claim 1, which is characterized in that the transparent panel passes through
After the infrared heater heating, the surface temperature come out of the stove should be greater than the viscoelastic transition temperature of material.
8. the method for manufacturing light guide plate of online hot-rolling pressure according to claim 1, which is characterized in that pressure roller (10) after described
Diameter is 15-25cm, is controlled and is gone up and down with cylinder, passage of heat is included, using water as heat-conducting medium.
9. the method for manufacturing light guide plate of online hot-rolling pressure according to claim 1, which is characterized in that the micro-structure are as follows:
1, mirror surface；2, fixed diameter is that the light guiding points of 0.1mm-0.5mm are uniformly distributed；3, diameter is the light guiding points of 0.05-0.5mm, is pressed
Directly diameter is ascending is equidistantly uniformly distributed, or with fixed diameter by specific regular uneven distribution；4, a length of 0.1-1mm is being just
Rectangular pyramid is uniformly distributed.
10. the method for manufacturing light guide plate of online hot-rolling pressure according to claim 1, which is characterized in that the light guide plate is
Transparent panel after pressing using chilling roller, just shapes the optical sheet that surface has micro-structure using being tempered again through supercooling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810819151.8A CN109049594A (en) | 2018-07-24 | 2018-07-24 | A kind of method for manufacturing light guide plate and its manufacturing device of online hot-rolling pressure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810819151.8A CN109049594A (en) | 2018-07-24 | 2018-07-24 | A kind of method for manufacturing light guide plate and its manufacturing device of online hot-rolling pressure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809676A (en) * | 2019-02-27 | 2019-05-28 | 东莞市银泰丰光学科技有限公司 | The processing method that a kind of glass light guide plate enters plain edge micro-structure |
| CN112092271A (en) * | 2020-09-09 | 2020-12-18 | 张婷婷 | Plastic prefabricated part forming processing equipment and forming processing technology |
| CN112745593A (en) * | 2020-12-30 | 2021-05-04 | 江苏恒隆通新材料科技有限公司 | High-fog high-brightness diffusion plate and production process thereof |
| CN114932670A (en) * | 2022-05-21 | 2022-08-23 | 临海伟星新型建材有限公司 | Preparation method of novel electrical sheath pipeline |
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| CN102602006A (en) * | 2012-03-23 | 2012-07-25 | 株洲宏大高分子材料有限公司 | Extrusion molding method and equipment of large-size polyvinylidene fluoride platea |
| CN205450336U (en) * | 2016-01-06 | 2016-08-10 | 群光电能科技股份有限公司 | Manufacturing installation of light guide plate |
| CN106671455A (en) * | 2016-08-30 | 2017-05-17 | 福建正德光电科技有限公司 | Silk-screen-printing-free light guide plate online production process and production device |
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| TW200736743A (en) * | 2006-03-24 | 2007-10-01 | Wen-De Zhang | Manufacturing method for light guide plate of backlight module in electronic display |
| CN102602006A (en) * | 2012-03-23 | 2012-07-25 | 株洲宏大高分子材料有限公司 | Extrusion molding method and equipment of large-size polyvinylidene fluoride platea |
| CN205450336U (en) * | 2016-01-06 | 2016-08-10 | 群光电能科技股份有限公司 | Manufacturing installation of light guide plate |
| CN106671455A (en) * | 2016-08-30 | 2017-05-17 | 福建正德光电科技有限公司 | Silk-screen-printing-free light guide plate online production process and production device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809676A (en) * | 2019-02-27 | 2019-05-28 | 东莞市银泰丰光学科技有限公司 | The processing method that a kind of glass light guide plate enters plain edge micro-structure |
| CN112092271A (en) * | 2020-09-09 | 2020-12-18 | 张婷婷 | Plastic prefabricated part forming processing equipment and forming processing technology |
| CN112745593A (en) * | 2020-12-30 | 2021-05-04 | 江苏恒隆通新材料科技有限公司 | High-fog high-brightness diffusion plate and production process thereof |
| CN114932670A (en) * | 2022-05-21 | 2022-08-23 | 临海伟星新型建材有限公司 | Preparation method of novel electrical sheath pipeline |
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Application publication date: 20181221 |
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