CN113671603B - Light guide plate production process with good light transmittance - Google Patents
Light guide plate production process with good light transmittance Download PDFInfo
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- CN113671603B CN113671603B CN202110965342.7A CN202110965342A CN113671603B CN 113671603 B CN113671603 B CN 113671603B CN 202110965342 A CN202110965342 A CN 202110965342A CN 113671603 B CN113671603 B CN 113671603B
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- light guide
- guide plate
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- light
- static electricity
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- 238000002834 transmittance Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 29
- 230000005611 electricity Effects 0.000 claims abstract description 17
- 230000003068 static effect Effects 0.000 claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 11
- 238000005498 polishing Methods 0.000 claims abstract description 11
- 238000002844 melting Methods 0.000 claims abstract description 10
- 230000008018 melting Effects 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000010147 laser engraving Methods 0.000 claims abstract description 8
- 238000001125 extrusion Methods 0.000 claims abstract description 7
- 238000004806 packaging method and process Methods 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 10
- 239000007888 film coating Substances 0.000 claims description 9
- 238000009501 film coating Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 6
- 239000004793 Polystyrene Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229920002223 polystyrene Polymers 0.000 claims description 5
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 230000003078 antioxidant effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 239000011325 microbead Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract description 2
- 230000000996 additive effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000010030 laminating Methods 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/045—Light guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00663—Production of light guides
-
- 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
-
- 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)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses a light guide plate production process with good light transmittance, which comprises the following steps: the method comprises the steps of raw material preparation, raw material melting, extrusion molding, lattice point, cutting, polishing and cleaning, laminating and packaging, wherein by the steps, modified silicon dioxide, transparent organic glass particles and other additive materials are added into raw materials of the light guide plate, so that the light transmission performance of the light guide plate is better, and laser engraving is matched, so that the engraved light guide points on each light guide plate are uniform in depth and size, the uneven and nonuniform depth and size of the light guide points are avoided, when the light guide points reflect, the formed scattered light is more uniform, the light guide effect of the light guide plate is better, the light transmission effect is better, static electricity is removed from the light guide plate through the arranged static electricity removing ion fans, and the friction static electricity generated in the processing process of the light guide plate is removed, so that the influence on circuit elements arranged later is avoided.
Description
Technical Field
The invention relates to the field of production processes, in particular to a production process of a light guide plate with good light transmittance.
Background
The light guide plate is made of an optical acrylic/PC plate, and then is made of a high-tech material with an extremely high refractive index and light absorption prevention, a plurality of light guide plates are formed by rolling and are stamped with various light guide points through structures on rolling rollers, when light rays are emitted to the various light guide points, reflected light can be diffused towards various angles, reflection conditions are destroyed and emitted from the front surface of the light guide plate, the light guide plates can uniformly emit light through various light guide points with different densities and sizes, but due to the fact that depth or size differences are easily generated among the light guide points of rolling of the rolling rollers, scattered light is uneven, light transmittance of the light guide plates is poor, use is inconvenient, and the light guide plates generate a plurality of friction in the processing process, so that the light guide plates often contain static electricity, and influence on circuit elements is easily generated in the subsequent installation process of the circuit elements.
Disclosure of Invention
The invention mainly aims to provide a light guide plate production process with good light transmittance, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
A light guide plate production process with good light transmittance comprises the following steps:
S1, raw material preparation, namely, raw materials are configured according to the weight ratio: 70-80 parts of polystyrene, 10-15 parts of transparent organic glass beads, 3-5 parts of modified silicon dioxide, 1-2 parts of compatilizer, 1-2 parts of plasticizer, 0.5-2 parts of antioxidant and 0.5-3 parts of photoinitiator, and placing the prepared raw materials into each batching barrel for waiting use;
s2, in a raw material melting stage, sequentially pouring raw materials in a material mixing barrel into a reaction kettle, heating and melting various raw materials, and uniformly stirring and mixing;
s3, in the extrusion molding stage, extruding the high-temperature raw material obtained in the previous step through a die head extrusion device, and standing and cooling the light guide plate at room temperature to obtain a preliminary light guide plate;
S4, performing laser engraving on the light guide plate through a laser device, performing laser engraving according to an X axis and a Y axis through a preset program, and engraving specified dots on the light guide plate according to specified X-axis intervals and Y-axis intervals;
S5, in the cutting stage, the light guide plate is cut through a cutting device, and the cutting device is a laser device;
S6, polishing and cleaning the light guide plate through a polishing device, and cleaning the light guide plate through an ultrasonic cleaner after polishing;
s7, film coating is carried out on the light guide plate in a film coating stage;
s8, packaging the coated light guide plate to finish the production of the light guide plate;
preferably, in the step S1, the modified silicon dioxide is particles with the diameter of 40-50 microns, and the transparent organic glass micro-beads are particles with the diameter of 50-80 microns.
Preferably, in the step S2, the temperature in the reaction kettle for melting the raw materials is controlled to be 400-600 ℃, and the mixing and stirring time is not less than two hours, and the temperature is kept unchanged during the mixing and stirring period.
Preferably, in the step S3, the light guide plate is not allowed to stand at room temperature for less than four hours.
Preferably, in the step S4, the cross section of the mesh point engraved on the light guide plate by the laser device may be semicircular, triangular, etc. and the depth thereof is 0.03-0.2mm.
Preferably, in step S6, the number of times of cleaning by the ultrasonic cleaner cannot be lower than two.
Preferably, in the step S7, a PE protective film is added on one side of the light guide plate, and after the film is covered, static electricity is removed by blowing the light guide plate by using a static electricity removing ion blower, and the static electricity removing time cannot be less than half an hour.
Preferably, in step S8, a certain number of light guide plates are stacked and placed, and then packaged.
Compared with the prior art, the light guide plate production process with good light transmittance has the advantages that the light transmittance of the light guide plate is better through the arranged modified silicon dioxide, transparent organic glass particles and other additive materials, and the engraved light guide points are uniform through laser engraving, so that scattered light is more uniform, the light guide effect of the light guide plate is better, static electricity is removed from the light guide plate through the arranged static electricity removing ion fan, and influence on subsequently installed circuit elements is avoided.
Drawings
Fig. 1 is a production step diagram of a light guide plate production process with good light transmittance.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1, a light guide plate production process with good light transmittance comprises the following steps:
S1, raw material preparation, namely, raw materials are configured according to the weight ratio: 70-80 parts of polystyrene, 10-15 parts of transparent organic glass beads, 3-5 parts of modified silicon dioxide, 1-2 parts of compatilizer, 1-2 parts of plasticizer, 0.5-2 parts of antioxidant and 0.5-3 parts of photoinitiator, and placing the prepared raw materials into each batching barrel for waiting use;
s2, in a raw material melting stage, sequentially pouring raw materials in a material mixing barrel into a reaction kettle, heating and melting various raw materials, and uniformly stirring and mixing;
s3, in the extrusion molding stage, extruding the high-temperature raw material obtained in the previous step through a die head extrusion device, and standing and cooling the light guide plate at room temperature to obtain a preliminary light guide plate;
S4, performing laser engraving on the light guide plate through a laser device, performing laser engraving according to an X axis and a Y axis through a preset program, and engraving specified dots on the light guide plate according to specified X-axis intervals and Y-axis intervals;
S5, in the cutting stage, the light guide plate is cut through a cutting device, and the cutting device is a laser device;
S6, polishing and cleaning the light guide plate through a polishing device, and cleaning the light guide plate through an ultrasonic cleaner after polishing;
s7, film coating is carried out on the light guide plate in a film coating stage;
And S8, packaging the coated light guide plate to finish the production of the light guide plate.
In the S1 step, the modified silicon dioxide is particles with the diameter of 40-50 microns, and the transparent organic glass micro-beads are particles with the diameter of 50-80 microns; s2, controlling the temperature in the reaction kettle for melting the raw materials to be 400-600 ℃, and mixing and stirring for not less than two hours, wherein the temperature is kept unchanged during the mixing and stirring period; s3, in the step, the rest time of the light guide plate at room temperature cannot be lower than four hours; s4, the light guide plate passes through a laser device, the cross section of the mesh points engraved on the light guide plate can be semicircular, triangular and the like, and the depth of the mesh points is 0.03-0.2mm; in the step S6, the cleaning times of the ultrasonic cleaner cannot be lower than two times; s7, adding a PE protective film on one side of the light guide plate, and after the film coating is finished, blowing the light guide plate to remove static electricity through a static electricity removing ion fan, wherein the static electricity removing time cannot be less than half an hour; and S8, stacking a certain number of light guide plates, and packaging.
The invention relates to a light guide plate production process with good light transmittance, which comprises the steps of preparing 70-80 parts of polystyrene, 10-15 parts of transparent organic glass beads, 3-5 parts of modified silicon dioxide, 1-2 parts of compatilizer, 1-2 parts of plasticizer, 0.5-2 parts of antioxidant and 0.5-3 parts of photoinitiating machine, placing the prepared materials into each raw material barrel, wherein the modified silicon dioxide is particles with the diameter of 40-50 micrometers, the transparent organic glass beads are particles with the diameter of 50-80 micrometers, sequentially adding the particles into a reaction kettle, heating the reaction kettle to 400-600 ℃ to melt various materials, dissolving the modified silicon dioxide and the transparent organic glass beads into a polystyrene solution, stirring the materials at a high degree for at least two hours by keeping the temperature unchanged, uniformly mixing the various raw materials, extruding the light guide plate through a die head extruding device, standing for cooling at room temperature for at least four hours to obtain a preliminary light guide plate, engraving the light guide plate through a laser device, wherein the cross section of the engraved lattice points, namely light guide points, can be semicircular or triangular and the like, the depth of the engraved lattice points is between 0.03 and 0.2mm, cutting the light guide plate through the laser device, polishing, wherein the light guide plate contains more fragments and impurities, cleaning the light guide plate through an ultrasonic cleaner, the ultrasonic cleaning frequency cannot be less than twice, placing the light guide plate in the room temperature, drying the light guide plate through a heating blower, performing film coating on the light guide plate after the drying is completed, adding a PE protective film on one side of the light guide plate, and then removing an electrostatic ion blower, the light guide plates are blown to remove static electricity, the static electricity removing time cannot be less than half an hour, then a certain number of light guide plates are stacked and placed, and then packaging is carried out, so that production is completed.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A light guide plate production process with good light transmittance is characterized in that: the method comprises the following steps:
S1, raw material preparation, namely, raw materials are configured according to the weight ratio: 70-80 parts of polystyrene, 10-15 parts of transparent organic glass beads, 3-5 parts of modified silicon dioxide, 1-2 parts of compatilizer, 1-2 parts of plasticizer, 0.5-2 parts of antioxidant and 0.5-3 parts of photoinitiator, and placing the prepared raw materials into each batching barrel for waiting use;
s2, in a raw material melting stage, sequentially pouring raw materials in a material mixing barrel into a reaction kettle, heating and melting various raw materials, and uniformly stirring and mixing;
s3, in the extrusion molding stage, extruding the high-temperature raw material obtained in the previous step through a die head extrusion device, and standing and cooling the light guide plate at room temperature to obtain a preliminary light guide plate;
S4, performing laser engraving on the light guide plate through a laser device, performing laser engraving according to an X axis and a Y axis through a preset program, and engraving specified dots on the light guide plate according to specified X-axis intervals and Y-axis intervals;
S5, in the cutting stage, the light guide plate is cut through a cutting device, and the cutting device is a laser device;
S6, polishing and cleaning the light guide plate through a polishing device, and cleaning the light guide plate through an ultrasonic cleaner after polishing;
s7, film coating is carried out on the light guide plate in a film coating stage;
And S8, packaging the coated light guide plate to finish the production of the light guide plate.
2. The process for producing a light guide plate with good light transmittance according to claim 1, wherein: in the step S1, the modified silicon dioxide is particles with the diameter of 40-50 microns, and the transparent organic glass micro-beads are particles with the diameter of 50-80 microns.
3. The process for producing a light guide plate with good light transmittance according to claim 1, wherein: in the step S2, the temperature in the reaction kettle for melting the raw materials is controlled to be 400-600 ℃, the mixing and stirring time is not less than two hours, and the temperature is kept unchanged during the mixing and stirring period.
4. The process for producing a light guide plate with good light transmittance according to claim 1, wherein: in the step S3, the rest time of the light guide plate at room temperature cannot be less than four hours.
5. The process for producing a light guide plate with good light transmittance according to claim 1, wherein: in the step S4, the light guide plate passes through the laser device, the cross section of the mesh point engraved on the light guide plate can be semicircular, triangular and the like, and the depth of the mesh point is 0.03-0.2mm.
6. The process for producing a light guide plate with good light transmittance according to claim 1, wherein: in the step S6, the number of times of cleaning by the ultrasonic cleaner cannot be lower than two.
7. The process for producing a light guide plate with good light transmittance according to claim 1, wherein: in the step S7, a PE protective film is added on one side of the light guide plate, after the film coating is completed, static electricity is removed by blowing the light guide plate through a static electricity removing ion fan, and the static electricity removing time cannot be less than half an hour.
8. The process for producing a light guide plate with good light transmittance according to claim 1, wherein: in the step S8, a certain number of light guide plates are stacked and placed, and then packaging is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110965342.7A CN113671603B (en) | 2021-08-23 | 2021-08-23 | Light guide plate production process with good light transmittance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110965342.7A CN113671603B (en) | 2021-08-23 | 2021-08-23 | Light guide plate production process with good light transmittance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113671603A CN113671603A (en) | 2021-11-19 |
| CN113671603B true CN113671603B (en) | 2024-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110965342.7A Active CN113671603B (en) | 2021-08-23 | 2021-08-23 | Light guide plate production process with good light transmittance |
Country Status (1)
| Country | Link |
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| CN (1) | CN113671603B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685179A (en) * | 2008-09-27 | 2010-03-31 | 上海边光实业有限公司 | Manufacturing technology of high temperature resistance light guide plate favourable for even light distribution |
| WO2013026834A1 (en) * | 2011-08-23 | 2013-02-28 | Evonik Röhm Gmbh | Continuous method for the production of light guide plates |
| CN108020881A (en) * | 2017-12-04 | 2018-05-11 | 福州大学 | It is a kind of to contain light guide plate encapsulating structure of quantum dot micro structure array and preparation method thereof for surface |
-
2021
- 2021-08-23 CN CN202110965342.7A patent/CN113671603B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685179A (en) * | 2008-09-27 | 2010-03-31 | 上海边光实业有限公司 | Manufacturing technology of high temperature resistance light guide plate favourable for even light distribution |
| WO2013026834A1 (en) * | 2011-08-23 | 2013-02-28 | Evonik Röhm Gmbh | Continuous method for the production of light guide plates |
| CN108020881A (en) * | 2017-12-04 | 2018-05-11 | 福州大学 | It is a kind of to contain light guide plate encapsulating structure of quantum dot micro structure array and preparation method thereof for surface |
Non-Patent Citations (1)
| Title |
|---|
| 导光板设计、制作及其应用的研究;刘荣富;陆金牛;;广告大观(标识版);20091201(12);全文 * |
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| CN113671603A (en) | 2021-11-19 |
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