CN113199782A - Method for processing acrylic light guide plate - Google Patents
Method for processing acrylic light guide plate Download PDFInfo
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- CN113199782A CN113199782A CN202110524328.3A CN202110524328A CN113199782A CN 113199782 A CN113199782 A CN 113199782A CN 202110524328 A CN202110524328 A CN 202110524328A CN 113199782 A CN113199782 A CN 113199782A
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- guide plate
- light guide
- light
- injection molding
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- 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
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
Abstract
The invention discloses a processing method of an acrylic light guide plate, which comprises eight processing steps of injection molding, cutting, early cleaning, mesh point design, mesh point processing, later cleaning, detection and film covering, so that a dark area of a non-incident light edge is effectively improved, the problems of uneven brightness, insufficient brightness and the like of a large-breadth light guide plate are solved, the brightness uniformity is maximized, and the basic uniformity can reach more than 90%; meanwhile, the AF anti-fingerprint film is electroplated on the surface of the light guide plate, so that the light guide plate is effectively prevented from being stained with fingerprints in the using process, and the cleanness and the attractiveness of the light guide plate are ensured.
Description
Technical Field
The invention relates to a processing method of an optical plate, in particular to a processing method of an acrylic light guide plate.
Background
The light guide plate is a high-tech product for converting a linear light source into a surface light source, and the principle is that light emitted from an LED lamp is absorbed by an optical-grade acrylic plate to stay on the surface of the acrylic plate, when the light is emitted to each light guide point, reflected light can be diffused towards each angle, then the reflected light is destroyed and reflected by the front surface of the light guide plate, and the light guide plate can uniformly emit light through various light guide points with different densities and sizes. At present, the light guide processing modes mainly comprise silk screen printing, injection molding, etching, carving and the like. In any case, the light guide plate pattern is designed, and then the pattern is formed on the acrylic plate by using the respective processes to form the light guide plate product.
The light guide plate is formed by using optical-grade PMMA/PC particles made of high-tech materials with extremely high reflectivity, combining a mold (additionally provided with a dot process) and performing injection molding. However, the conventional light guide plate with a large width has uneven and insufficient brightness, so that the utilization rate of the light guide plate is reduced, and meanwhile, the light guide plate is easily stained with fingerprints in the using process, so that the attractiveness of the light guide plate is reduced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a processing method of an acrylic light guide plate, which can effectively solve the problems in the background art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a processing method of an acrylic light guide plate comprises the following steps:
step S1: the injection molding light guide plate is formed by injection molding, wherein the raw materials for injection molding comprise a plastic raw material, a water gap material and a toner, the plastic raw material, the water gap material and the toner which are weighed according to a proportion are uniformly mixed to form a raw material for injection molding, the raw material for injection molding is guided into an injection mold, so that the raw material for injection molding is injected to form the smooth light guide plate,
step S2: cutting the light guide plate, cutting the smooth light guide plate to a desired size by a cutting forming machine, and polishing the smooth light guide plate;
step S3: cleaning the light guide plate in an early stage, spraying a small amount of alcohol on the surface of the light guide plate, simultaneously using a cleaning cloth to erase dust and debris on the surface, after the erasing is finished, forcibly beating the periphery of the light guide plate by using a dust sticking pad, sticking the foreign matters which are not wiped off, keeping the cleanness of the surface of the light guide plate and ensuring the smoothness of the light guide plate;
step S4: designing light guide plate mesh points, manufacturing software design mesh points on the professional light guide plate mesh points, and transmitting a processed data file provided with a good mesh point pattern to a controller;
step S5: processing the light guide plate mesh points, wherein the controller performs mesh point pattern processing on processing data on the light guide plate through a laser technology of a laser machine, and in order to avoid laser dotting to form a dark area on a non-incident light edge, a twisted edge technology is adopted, wherein the twisted edge technology is that passing light is emitted to the greatest extent by using dense points which are closer to the edge, so that the dark area of the non-incident light edge is effectively improved;
step S6: cleaning the light guide plate at the later stage, cleaning the light guide plate with ionized water for 10s to remove dust on the surface, and then sequentially placing the light guide plate into an ultrasonic oscillator filled with acetone solution, isopropanol and deionized water solution to vibrate for 10min respectively to remove organic matters and grease and keep the cleanness of the light guide plate;
step S7: the detection light guide plate is placed on a supporting surface formed by the light source assembly with a detection effect, and the luminosity of the light guide plate is detected by changing the light emitting color of the light source assembly;
step S8: covering an AF anti-fingerprint film and a packaging protection film on the surface of the light guide plate, covering a layer of AF anti-fingerprint film on the outer surface of the detected light guide plate through an electroplating technology, manually covering the outer surface of the AF anti-fingerprint film with the packaging protection film, and carrying out vacuum packaging.
By way of further illustration, the dot patterns in step S4 are circular or square diffusion dots, and the dot patterns are distributed on the bottom surface of the conductive plate.
As a further illustration, the laser machine in step S5 is a three-dimensional arbitrary-track laser machine, and the laser head on the laser machine automatically performs focusing operation on the Z axis and performs mesh pattern processing along the X axis and the Y axis by using an X axis and a Y axis circular interpolation method.
To be more specific, in step S7, if it is detected that there is a problem in the brightness of the light guide plate, the light guide plate needs to be reworked or scrapped, and if it is detected that there is no problem in the light guide plate, the light guide plate is double-coated and vacuum-packed.
As a further illustration, in step S8, the integrity of the package protective film is checked before lamination, and the package protective film with defects on the surface is eliminated.
Compared with the prior art, the invention has the beneficial effects that:
according to the processing method of the acrylic light guide plate, when light rays irradiate to diffusion points, reflected light can diffuse towards all angles, then the reflection conditions are destroyed and the light is emitted from the front surface of the light guide plate, the light guide plate can uniformly emit light by utilizing various dense and non-uniform diffusion points, in order to avoid laser dotting to form a dark area on a non-incident light edge, the edge twisting technology is adopted, the edge twisting technology is that light which is very dense and passes through is emitted to the greatest extent by the dense points on the edge, the dark area on the non-incident light edge is effectively improved, the problems of uneven brightness, insufficient brightness and the like of the large-width light guide plate are solved, the brightness uniformity is maximized, and the basic uniformity can reach more than 90%; meanwhile, the AF anti-fingerprint film is electroplated on the surface of the light guide plate, so that the light guide plate is effectively prevented from being stained with fingerprints in the using process, and the cleanness and the attractiveness of the light guide plate are ensured.
Drawings
Fig. 1 is a process flow diagram of a method for processing an acryl light guide plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the processing method of an acrylic light guide plate provided in this embodiment includes the following steps:
step S1: the injection molding light guide plate is formed by injection molding, wherein the raw materials for injection molding comprise a plastic raw material, a water gap material and a toner, the plastic raw material, the water gap material and the toner which are weighed according to a proportion are uniformly mixed to form a raw material for injection molding, the raw material for injection molding is guided into an injection mold, so that the raw material for injection molding is injected to form the smooth light guide plate,
step S2: cutting the light guide plate, cutting the smooth light guide plate to a desired size by a cutting forming machine, and polishing the smooth light guide plate;
step S3: cleaning the light guide plate in an early stage, spraying a small amount of alcohol on the surface of the light guide plate, simultaneously using a cleaning cloth to erase dust and debris on the surface, after the erasing is finished, forcibly beating the periphery of the light guide plate by using a dust sticking pad, sticking the foreign matters which are not wiped off, keeping the cleanness of the surface of the light guide plate and ensuring the smoothness of the light guide plate;
step S4: designing light guide plate mesh points, manufacturing software design mesh points on the professional light guide plate mesh points, and transmitting a processed data file provided with a good mesh point pattern to a controller;
step S5: processing the light guide plate mesh points, wherein the controller performs mesh point pattern processing on processing data on the light guide plate through a laser technology of a laser machine, and in order to avoid laser dotting to form a dark area on a non-incident light edge, a twisted edge technology is adopted, wherein the twisted edge technology is that passing light is emitted to the greatest extent by using dense points which are closer to the edge, so that the dark area of the non-incident light edge is effectively improved;
step S6: cleaning the light guide plate at the later stage, cleaning the light guide plate with ionized water for 10s to remove dust on the surface, and then sequentially placing the light guide plate into an ultrasonic oscillator filled with acetone solution, isopropanol and deionized water solution to vibrate for 10min respectively to remove organic matters and grease and keep the cleanness of the light guide plate;
step S7: the detection light guide plate is placed on a supporting surface formed by the light source assembly with a detection effect, and the luminosity of the light guide plate is detected by changing the light emitting color of the light source assembly; the luminance of light guide plate is detected to the light-emitting colour through the lamp source subassembly, improves the yields of light guide plate in the production, observes different colours through people's eye and detects the light guide plate under the light, and then the foreign matter of the different colours that can't examine in the effective quick inspection light guide plate.
Step S8: the surface of the light guide plate is coated with the AF anti-fingerprint film and the packaging protection film, the detected light guide plate is coated with the AF anti-fingerprint film on the outer surface of the light guide plate through an electroplating technology, the packaging protection film is manually coated on the outer surface of the AF anti-fingerprint film and is subjected to vacuum packaging, the AF anti-fingerprint film is electroplated on the surface of the light guide plate, the light guide plate is effectively prevented from being stained with fingerprints in the using process, and the cleanness and the attractiveness of the light guide plate are guaranteed.
The dot patterns in step S4 are circular or square diffusion dots, and the dot patterns are distributed on the bottom surface of the conductive plate, so that when light strikes the diffusion dots, the reflected light is diffused at various angles, and then the reflected light is emitted from the front surface of the light guide plate by destroying the reflection condition, and the light guide plate can uniformly emit light by using the diffusion dots with various densities and sizes.
The laser machine in the step S5 is a three-dimensional arbitrary trajectory laser machine, the laser head on the laser machine automatically performs focusing operation on the Z axis, and performs mesh pattern processing along the X axis and the Y axis by using an X axis and a Y axis circular interpolation method.
In step S8, the integrity of the package protective film is checked before lamination, and the package protective film having a defect on the surface is excluded.
In step S7, if it is detected that there is a problem with the brightness of the light guide plate, the light guide plate needs to be reworked or scrapped, and if it is detected that there is no problem with the light guide plate, the light guide plate is double-coated and vacuum-packed.
The working principle is as follows: uniformly mixing plastic raw materials, water gap materials and toner weighed according to a ratio to form raw materials for injection molding, guiding the raw materials for injection molding into an injection mold, injecting the raw materials for injection molding into a smooth light guide plate, cutting the smooth light guide plate to a desired size through a cutting forming machine, polishing the smooth light guide plate, spraying a small amount of alcohol on the surface of the light guide plate, simultaneously erasing dust and debris on the surface by using a cleaning cloth, after erasing, forcibly beating the periphery of the light guide plate by using a dust sticking pad, sticking foreign matters which are not wiped off, manufacturing software design dots on the professional light guide plate, transmitting a processing data file with a good dot pattern to a controller, processing the processing data on the light guide plate by using a laser machine laser technology through the controller, and cleaning the light guide plate by using ionized water for 10s after the dot pattern processing is finished, wash off the dust on surface, then place it in proper order and shake respectively in the ultrasonic oscillator who is equipped with acetone solution, isopropyl alcohol, deionized water solution and for 10min, get rid of organic matter and grease, keep the cleanness of light guide plate, place the light guide plate on the holding surface that the lamp source subassembly that has the detection effect formed, the luminosity of detecting the light guide plate is carried out through the change of the light-emitting colour of lamp source subassembly, if detect the luminance of light guide plate when having a problem, then need to do over again or scrap the light guide plate, if when checking the light guide plate does not have the problem, then carry out two-sided AF cover fingerprint membrane and carry out vacuum packaging to the light guide plate.
In summary, according to the processing method of the acrylic light guide plate provided by the invention, when light rays irradiate the diffusion points, reflected light rays can be diffused towards all angles, then the reflection condition is destroyed and the reflected light rays are emitted from the front surface of the light guide plate, the light guide plate can uniformly emit light by utilizing various dense and non-uniform diffusion points, in order to avoid laser dotting to form a dark area on a non-incident light edge, the twisting technology is adopted, the twisting technology is that the passing light rays are emitted as much as possible by utilizing dense points which are closer to the edge, so that the dark area of the non-incident light edge is effectively improved, the problems of uneven brightness, insufficient brightness and the like of the large-width light guide plate are solved, the brightness uniformity is maximized, and the basic uniformity can reach more than 90%; meanwhile, the AF anti-fingerprint film is electroplated on the surface of the light guide plate, so that the light guide plate is effectively prevented from being stained with fingerprints in the using process, and the cleanness and the attractiveness of the light guide plate are ensured.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A processing method of an acrylic light guide plate is characterized in that: the processing method comprises the following steps:
step S1: the injection molding light guide plate is formed by injection molding, wherein the raw materials for injection molding comprise a plastic raw material, a water gap material and a toner, the plastic raw material, the water gap material and the toner which are weighed according to a proportion are uniformly mixed to form a raw material for injection molding, the raw material for injection molding is guided into an injection mold, so that the raw material for injection molding is injected to form the smooth light guide plate,
step S2: cutting the light guide plate, cutting the smooth light guide plate to a desired size by a cutting forming machine, and polishing the smooth light guide plate;
step S3: cleaning the light guide plate in an early stage, spraying a small amount of alcohol on the surface of the light guide plate, simultaneously using a cleaning cloth to erase dust and debris on the surface, after the erasing is finished, forcibly beating the periphery of the light guide plate by using a dust sticking pad, sticking the foreign matters which are not wiped off, keeping the cleanness of the surface of the light guide plate and ensuring the smoothness of the light guide plate;
step S4: designing light guide plate mesh points, manufacturing software design mesh points on the professional light guide plate mesh points, and transmitting a processed data file provided with a good mesh point pattern to a controller;
step S5: processing the light guide plate mesh points, wherein the controller performs mesh point pattern processing on processing data on the light guide plate through a laser technology of a laser machine, and in order to avoid laser dotting to form a dark area on a non-incident light edge, a twisted edge technology is adopted, wherein the twisted edge technology is that passing light is emitted to the greatest extent by using dense points which are closer to the edge, so that the dark area of the non-incident light edge is effectively improved;
step S6: cleaning the light guide plate at the later stage, cleaning the light guide plate with ionized water for 10s to remove dust on the surface, and then sequentially placing the light guide plate into an ultrasonic oscillator filled with acetone solution, isopropanol and deionized water solution to vibrate for 10min respectively to remove organic matters and grease and keep the cleanness of the light guide plate;
step S7: the detection light guide plate is placed on a supporting surface formed by the light source assembly with a detection effect, and the luminosity of the light guide plate is detected by changing the light emitting color of the light source assembly;
step S8: covering an AF anti-fingerprint film and a packaging protection film on the surface of the light guide plate, covering a layer of AF anti-fingerprint film on the outer surface of the detected light guide plate through an electroplating technology, manually covering the outer surface of the AF anti-fingerprint film with the packaging protection film, and carrying out vacuum packaging.
2. The processing method of the acrylic light guide plate according to claim 1, wherein: the mesh pattern in step S4 is a circular or square diffusion dot, and the mesh pattern is distributed on the bottom surface of the conductive plate.
3. The processing method of the acrylic light guide plate according to claim 1, wherein: the laser machine in the step S5 is a three-dimensional arbitrary trajectory laser machine, the laser head on the laser machine automatically performs focusing operation on the Z axis, and performs mesh pattern processing along the X axis and the Y axis by using an X axis and a Y axis circular interpolation method.
4. The processing method of the acrylic light guide plate according to claim 1, wherein: in step S7, if it is detected that there is a problem with the brightness of the light guide plate, the light guide plate needs to be reworked or scrapped, and if it is detected that there is no problem with the light guide plate, the light guide plate is double-coated and vacuum-packed.
5. The processing method of the acrylic light guide plate according to claim 1, wherein:
in step S8, the integrity of the package protective film is checked before lamination, and the package protective film having a defect on the surface is excluded.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110524328.3A CN113199782A (en) | 2021-05-13 | 2021-05-13 | Method for processing acrylic light guide plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110524328.3A CN113199782A (en) | 2021-05-13 | 2021-05-13 | Method for processing acrylic light guide plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113801405A (en) * | 2021-10-11 | 2021-12-17 | 绍兴明优光电科技有限公司 | Light guide plate and preparation process thereof |
| CN114573845A (en) * | 2022-03-21 | 2022-06-03 | 广东东华光电科技有限公司 | Preparation method of acrylic sheet |
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| CN106054309A (en) * | 2016-07-28 | 2016-10-26 | 滁州佳宏光电有限公司 | Light guide plate with high luminous efficiency and uniform brightness and manufacturing method thereof |
| CN108581213A (en) * | 2018-05-03 | 2018-09-28 | 东莞运城制版有限公司 | A kind of laser of light guide plate directly carves processing technology |
| CN109596463A (en) * | 2018-12-26 | 2019-04-09 | 浙江星星科技股份有限公司 | A kind of detection method of panel surface AF fingerprint proof membrane |
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2021
- 2021-05-13 CN CN202110524328.3A patent/CN113199782A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106054309A (en) * | 2016-07-28 | 2016-10-26 | 滁州佳宏光电有限公司 | Light guide plate with high luminous efficiency and uniform brightness and manufacturing method thereof |
| CN108581213A (en) * | 2018-05-03 | 2018-09-28 | 东莞运城制版有限公司 | A kind of laser of light guide plate directly carves processing technology |
| CN109596463A (en) * | 2018-12-26 | 2019-04-09 | 浙江星星科技股份有限公司 | A kind of detection method of panel surface AF fingerprint proof membrane |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113801405A (en) * | 2021-10-11 | 2021-12-17 | 绍兴明优光电科技有限公司 | Light guide plate and preparation process thereof |
| CN114573845A (en) * | 2022-03-21 | 2022-06-03 | 广东东华光电科技有限公司 | Preparation method of acrylic sheet |
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Application publication date: 20210803 |
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