CN113671603A - Production process of light guide plate with good light transmission - Google Patents
Production process of light guide plate with good light transmission Download PDFInfo
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- CN113671603A CN113671603A CN202110965342.7A CN202110965342A CN113671603A CN 113671603 A CN113671603 A CN 113671603A CN 202110965342 A CN202110965342 A CN 202110965342A CN 113671603 A CN113671603 A CN 113671603A
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- light guide
- guide plate
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- parts
- light
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 title claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 230000003068 static effect Effects 0.000 claims abstract description 17
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 238000005498 polishing Methods 0.000 claims abstract description 14
- 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
- 238000002844 melting Methods 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 11
- 238000001125 extrusion Methods 0.000 claims abstract description 8
- 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
- 238000002834 transmittance Methods 0.000 claims description 10
- 239000011324 bead Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 7
- 238000010147 laser engraving Methods 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
- 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
- 239000000463 material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000007888 film coating Substances 0.000 abstract 1
- 238000009501 film coating Methods 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 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
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000000203 mixture Substances 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
Images
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)
- Light Guides In General And Applications Therefor (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a production process of a light guide plate with good light transmission, which comprises the following steps: a raw material preparation stage, a raw material melting stage, an extrusion molding stage, a mesh point stage, a cutting stage, a polishing and cleaning stage, a film coating stage and a packaging stage, through the steps, the light guide plate is added with the modified silicon dioxide, the transparent organic glass particles and other additive materials to ensure that the light guide plate has better light transmission performance, and the depth and the size of the light guide points carved on each light guide plate are more uniform and uniform by matching with laser carving, so that the depth and the size of the light guide points are prevented from being non-uniform and non-uniform, thereby, when the light guide points are reflected, the formed scattered light is more uniform, the light guide effect of the light guide plate is better, the light transmission effect is better, and through the arranged static ion removing fan, static electricity is removed from the light guide plate, friction static electricity generated in the processing process of the light guide plate is removed, and influence on subsequently installed circuit elements 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 transmission.
Background
The light guide plate is made of optical acrylic/PC plate, then high-tech materials with high refractive index and no light absorption are used, a plurality of light guide plates are formed by rolling and are embossed with each light guide point by a structure on a rolling roller, when light irradiates each light guide point, reflected light can be diffused towards each angle, then reflection conditions are destroyed and are emitted from the front surface of the light guide plate, the light guide plate can uniformly emit light by various light guide points with different densities and sizes, but because the difference of depth or size is easily generated among the light guide points rolled by the rolling roller, the scattered light is not uniform, the light transmittance of the light guide plate is poor, the use is not very convenient, and the light guide plate generates a plurality of frictions in the processing process, so that the light guide plate often contains static electricity, and is easy to be installed in the subsequent circuit elements, affecting the circuit elements.
Disclosure of Invention
The invention mainly aims to provide a light guide plate production process with good light transmission, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a production process of a light guide plate with good light transmission comprises the following steps:
s1, a raw material preparation stage, wherein the raw materials are prepared 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 machine and 0.5-3 parts of photoinitiating machine, and placing the prepared raw materials into each mixing barrel for waiting use;
s2, in the raw material melting stage, pouring the raw materials in the batching barrel into the reaction kettle in sequence, heating and melting various raw materials, and stirring and mixing uniformly;
s3, in the extrusion molding stage, extruding the high-temperature raw material obtained in the previous step through a die head extrusion device to extrude the light guide plate, and standing at room temperature to cool to obtain a primary light guide plate;
s4, dot stage, laser engraving on the light guide plate by a laser device, laser engraving according to X axis and Y axis by a preset program, and engraving specified dots on the light guide plate according to specified X-axis spacing and Y-axis spacing;
s5, cutting the light guide plate through a cutting device, wherein the cutting device is a laser device;
s6, in the polishing and cleaning stage, polishing the light guide plate by a polishing device, and cleaning the light guide plate by an ultrasonic cleaning machine after polishing;
s7, in the film covering stage, the light guide plate is marked and covered with a film;
s8, in the packaging stage, packaging the film-coated light guide plate to finish the production of the light guide plate;
preferably, in the step S1, the modified silica is particles with a diameter of 40 to 50 micrometers, and the transparent organic glass beads are particles with a diameter of 50 to 80 micrometers.
Preferably, in the step S2, the temperature in the reaction kettle for melting the raw materials is controlled to be between 400 and 600 ℃, the mixing and stirring time is not less than two hours, and the temperature is kept constant during the mixing and stirring.
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 light guide plate is passed through a laser device, and the cross section of the dots engraved on the light guide plate may be in the shape of a semicircle, a triangle, etc., and the depth thereof is 0.03-0.2 mm.
Preferably, in step S6, the number of times of cleaning by the ultrasonic cleaning machine cannot be less than two.
Preferably, in step S7, a PE protective film is added on one side of the light guide plate, and after the lamination is completed, the static electricity is removed by blowing the light guide plate with a static electricity removing fan, and the time for removing the static electricity cannot be less than half an hour.
Preferably, in step S8, a certain number of light guide plates are stacked and packaged.
Compared with the prior art, the light guide plate production process with good light transmission performance has the advantages that the light transmission performance of the light guide plate is better due to the addition of the materials such as the modified silicon dioxide and the transparent organic glass particles, the light guide points carved out are more uniform due to laser carving, 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 static electricity removing ion fan, and the influence on circuit elements installed subsequently is avoided.
Drawings
FIG. 1 is a production step diagram of a light guide plate production process with good light transmittance.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1, a process for producing a light guide plate with good light transmittance includes the following steps:
s1, a raw material preparation stage, wherein the raw materials are prepared 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 machine and 0.5-3 parts of photoinitiating machine, and placing the prepared raw materials into each mixing barrel for waiting use;
s2, in the raw material melting stage, pouring the raw materials in the batching barrel into the reaction kettle in sequence, heating and melting various raw materials, and stirring and mixing uniformly;
s3, in the extrusion molding stage, extruding the high-temperature raw material obtained in the previous step through a die head extrusion device to extrude the light guide plate, and standing at room temperature to cool to obtain a primary light guide plate;
s4, dot stage, laser engraving on the light guide plate by a laser device, laser engraving according to X axis and Y axis by a preset program, and engraving specified dots on the light guide plate according to specified X-axis spacing and Y-axis spacing;
s5, cutting the light guide plate through a cutting device, wherein the cutting device is a laser device;
s6, in the polishing and cleaning stage, polishing the light guide plate by a polishing device, and cleaning the light guide plate by an ultrasonic cleaning machine after polishing;
s7, in the film covering stage, the light guide plate is marked and covered with a film;
and S8, in the packaging stage, packaging the film-coated light guide plate to finish the production of the light guide plate.
In the step S1, the modified silicon dioxide is particles with the diameter of 40-50 microns, and the transparent organic glass beads are particles with the diameter of 50-80 microns; in the step S2, controlling the temperature in the reaction kettle for melting the raw materials to be between 400 and 600 ℃, and keeping the temperature unchanged during the mixing and stirring, wherein the mixing and stirring time is not less than two hours; in the step of S3, the light guide plate is not allowed to stand for less than four hours at room temperature; in the step 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 in the shape of a semicircle, a triangle and the like, and the depth of the mesh points is 0.03-0.2 mm; in the step of S6, the cleaning frequency of the ultrasonic cleaning machine cannot be less than twice; in the step S7, a PE protective film is added on one side of the light guide plate, after film covering is finished, 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; in the step S8, a certain number of light guide plates are stacked and placed, and then packaged.
The invention relates to a light guide plate production process with good light transmission, 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 machine 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 temperature of the reaction kettle to 400-600 ℃, melting various materials, dissolving the modified silicon dioxide and the transparent organic glass beads into a solution of the polystyrene, highly stirring the mixture for at least two hours by keeping the temperature unchanged, uniformly mixing various raw materials, extruding the light guide plate by a die head extrusion device, statically cooling at room temperature, statically cooling for at least four hours to obtain a primary light guide plate, carving the light guide plate by a laser device, wherein the carved lattice points, namely the cross sections of light guide points, can be in the shapes of semi-circles or triangles and the like, and the depth of the light guide points is 0.03-0.2mm, cutting the light guide plate by the laser device, polishing, cleaning by an ultrasonic cleaning machine for not less than two times, placing the light guide plate in room temperature, drying the light guide plate by a heating blower, laminating the light guide plate after drying, adding a PE protective film on one side of the light guide plate, and passing through a static-removing ion blower, blow the light guide plate and get rid of static, and get rid of the static time and can not be less than half an hour, then push away the pile with a certain amount of light guide plate and put, then pack, accomplish production.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A production process of a light guide plate with good light transmission is characterized by comprising the following steps: the method comprises the following steps:
s1, a raw material preparation stage, wherein the raw materials are prepared 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 machine and 0.5-3 parts of photoinitiating machine, and placing the prepared raw materials into each mixing barrel for waiting use;
s2, in the raw material melting stage, pouring the raw materials in the batching barrel into the reaction kettle in sequence, heating and melting various raw materials, and stirring and mixing uniformly;
s3, in the extrusion molding stage, extruding the high-temperature raw material obtained in the previous step through a die head extrusion device to extrude the light guide plate, and standing at room temperature to cool to obtain a primary light guide plate;
s4, dot stage, laser engraving on the light guide plate by a laser device, laser engraving according to X axis and Y axis by a preset program, and engraving specified dots on the light guide plate according to specified X-axis spacing and Y-axis spacing;
s5, cutting the light guide plate through a cutting device, wherein the cutting device is a laser device;
s6, in the polishing and cleaning stage, polishing the light guide plate by a polishing device, and cleaning the light guide plate by an ultrasonic cleaning machine after polishing;
s7, in the film covering stage, the light guide plate is marked and covered with a film;
and S8, in the packaging stage, packaging the film-coated light guide plate to finish the production of the light guide plate.
2. The process for producing a light guide plate having 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 beads are particles with the diameter of 50-80 microns.
3. The process for producing a light guide plate having 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 between 400 and 600 ℃, the mixing and stirring time is not less than two hours, and the temperature is kept unchanged during the mixing and stirring.
4. The process for producing a light guide plate having good light transmittance according to claim 1, wherein: in the step S3, the light guide plate is not allowed to stand at room temperature for less than four hours.
5. The process for producing a light guide plate having good light transmittance according to claim 1, wherein: in the step S4, the light guide plate passes through a laser device, and the cross section of the engraved mesh points on the light guide plate may be in the shape of a semicircle, a triangle, etc., and the depth thereof is 0.03-0.2 mm.
6. The process for producing a light guide plate having good light transmittance according to claim 1, wherein: in the step S6, the number of times of cleaning by the ultrasonic cleaning machine cannot be less than two.
7. The process for producing a light guide plate having good light transmittance according to claim 1, wherein: and in the step S7, adding a PE protective film on one side of the light guide plate, blowing the light guide plate to remove static electricity through a static electricity removing ion fan after film covering is finished, wherein the static electricity removing time cannot be less than half an hour.
8. The process for producing a light guide plate having 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 packaged.
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 true CN113671603A (en) | 2021-11-19 |
| CN113671603B CN113671603B (en) | 2024-05-07 |
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| 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 |
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| Country | Link |
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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 |
|---|
| 刘荣富;陆金牛;: "导光板设计、制作及其应用的研究", 广告大观(标识版), no. 12, 1 December 2009 (2009-12-01) * |
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| CN113671603B (en) | 2024-05-07 |
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