CN114518655A - Method for multi-software combined simulation and design of mesh points of hot-pressing light guide plate and application thereof - Google Patents
Method for multi-software combined simulation and design of mesh points of hot-pressing light guide plate and application thereof Download PDFInfo
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0012—Optical design, e.g. procedures, algorithms, optimisation routines
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
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- 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
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The invention discloses a method for multi-software combined simulation and design of mesh points of a hot-pressing light guide plate, which comprises the following steps: s1, processing a microstructure, measuring the microstructure by adopting shooting software, and measuring parameters of a crater point; s2, processing the parameters of the crater dots by adopting data processing software; s3, performing three-dimensional modeling by adopting three-dimensional software, and performing Boolean cutting on the smooth denoised crater dot parameters; s4, establishing a simulation analysis of the crater mesh points by adopting optical simulation design software to obtain a model; s5, adopting optical dot design software to design density files of the light guide plate to generate a dot diagram; and S6, establishing a simulation analysis of the mesh point model and the crater mesh point model by adopting optical simulation design software to obtain the light guide plate mesh point model. The method for multi-software combined simulation and design of the mesh points of the hot-pressing light guide plate solves the problem that the light guide plate can only be optimally designed by multiple processing experiments in the past, greatly reduces research and development time, and saves production cost.
Description
Technical Field
The invention relates to the technical field of backlight, in particular to a method for multi-software combined simulation and design of mesh points of a hot-pressing light guide plate and application thereof.
Background
The light guide plate is used as the most important module in the liquid crystal display backlight module and is responsible for transmitting light in the backlight module, and the light is uniformly emitted from the light emitting surface of the light guide plate by changing the transmission rule of the light. Therefore, the light guide plate is a key factor for determining the quality of the backlight module. The dot structure of the light guide plate directly affects the uniformity and brightness of the backlight module, and different processing methods can also produce different dot structures. The scattering mesh points of the light guide plate formed by hot pressing are difficult to directly carry out simulation design by optical design software due to extremely complicated structure.
At present, the light guide plate is divided into two processing modes, one mode is that the scattering mesh point structure is directly processed on a PMMA substrate by laser to be approximate to a hemisphere, so that the design by adopting the hemisphere mesh point in the simulation in optical software is closer to an actual result, but the processing method has lower efficiency. The other method is to process a steel plate into a master plate by laser according to a pre-designed mesh point density grade, and then transfer the microstructure to PMMA by using a hot pressing process, thereby obtaining the light guide plate with scattering mesh points, which is called as a hot pressing forming technology. The method for manufacturing the light guide plate is easy for batch production, and greatly improves the production efficiency. However, the shape of the scattering net obtained by the hot pressing process is extremely irregular, the structure is very complex, and currently, few light guide plate simulation optimization designs based on the net points with the complex structure are available. The method mainly depends on experience, adopts software such as gtools and the like to carry out preliminary arrangement on the dot density, and then further adjusts according to a test result. Even experienced technical staff in the whole process need carry out 3 ~ 4 times, wastes time and energy and takes the material, greatly increased light guide plate's manufacturing cost.
The problems and reasons of the prior art are as follows:
firstly, the scattering net point structure is directly processed on the PMMA substrate by laser to be close to a hemisphere shape, and the processing efficiency is low. The laser directly processes scattering net points on the PMMA substrate, and the quantity of the scattering net points of the light guide plate is generally in the order of millions to millions. The larger the size, the larger the number of dots. At present, the processing efficiency of laser dotting is about 10 points/second, and a very long time is consumed for processing a light guide plate. In the face of tens of thousands of mass production orders, the production efficiency can be improved only by adding laser equipment, and the equipment investment cost is high. Laser machining of the steel sheet surface to form microstructures the measurements were made with a nanopositem 3D profilometer (precision 1 nm). As shown in fig. 2-3, the microstructure can be seen as a pit of about 50 μm in diameter surrounded by a ring of irregular burrs, which are the melt produced during laser machining. The microstructure formed in the steel plate is approximately hemispherical, which is very close to a mesh point structure formed by directly processing the PMMA surface by laser. After the microstructure is transferred to the base material of the light guide plate, burrs around the mesh points and pits similar to hemispheres form crater mesh points. The crater burrs have a strong scattering effect, which is greater than that of a hemispherical mesh point. Therefore, the light guide plate cannot be simulated by using the half-ball dots. When the edition is changed and adjusted, the gtools calculates the distribution density of the mesh points by using the hemispherical mesh points, and the actual scattering capacity of the mesh points is higher than the design density of the mesh points. Therefore, the dot density scaling is often difficult to achieve.
Secondly, the shape of the scattering net obtained through a hot pressing process is extremely irregular, the structure is very complex, the simulation optimization design of the light guide plate based on the net points with the complex structure is rarely available at present, even experienced technicians need to perform the whole process for 3-4 times, time and labor are wasted, materials are wasted, and the production cost of the light guide plate is greatly increased.
Therefore, it is urgent to find a scattering dot optical model conforming to the processing of the hot-pressing light guide plate to realize the simulation optimization design of the light guide plate that can be directly used for production and processing. Therefore, the invention is based on the manufacturing process of the hot-pressing light guide plate, constructs a scattering mesh point model for simulation optimization design of the hot-pressing light guide plate by means of processing conditions, and verifies the scattering mesh point model through simulation experiments and product processing.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a method for multi-software combined simulation and design of mesh points of a hot-pressing light guide plate. According to the method for multi-software combined simulation and design of the mesh points of the hot-pressing light guide plate, provided by the invention, the regular mesh points are modeled in a complicated mode, and a mesh point model which can be directly used for simulation design of the light guide plate is constructed by adopting a multi-software combined modeling method, so that the problem that the light guide plate can be optimally designed only by means of multiple processing experiments in the past is solved, the research and development time is greatly reduced, and the production cost is saved.
The technical purpose of the invention is realized by the following technical scheme:
a method for multi-software combined simulation and design of mesh points of a hot-pressing light guide plate comprises the following steps:
s1, processing a microstructure, measuring the microstructure by adopting shooting software, and measuring parameters of a crater point;
s2, processing the parameters of the crater dots measured in the step S1 by adopting data processing software;
s3, performing three-dimensional modeling by adopting three-dimensional software, and performing Boolean cutting on the smooth denoised crater dot parameters;
s4, establishing a simulation analysis of the crater mesh point by adopting optical simulation design software to obtain a crater mesh point model;
s5, adopting optical dot design software to design density files of the light guide plate to generate a dot diagram;
and S6, establishing a simulation analysis of the mesh point model and the crater mesh point model by adopting optical simulation design software to obtain the light guide plate mesh point model.
In the above method for multi-software joint simulation and design of mesh points of a thermocompression light guide plate, the specific steps of processing the microstructure in step S1 are as follows: and processing the surface of the steel plate to form a microstructure by using laser.
In the above method for multi-software joint simulation and design of mesh points of a thermocompression light guide plate, the specific steps of measuring the microstructure by using the shooting software in step S1 are as follows: the microstructure was measured using a NanoSystem 3D profilometer.
In the method for multi-software combined simulation and design of mesh points of a thermocompression light guide plate, in step S1, the parameters of the mesh points of the crater include the diameter of the bottom surface of the spherical cap, the depth of the concave portion of the spherical cap, and the height of the crater above the surface.
In the method for joint simulation and design of mesh points of a thermocompression light guide plate by using multiple software, the specific steps of processing the parameters of the crater mesh points measured in the step S1 by using data processing software in the step S2 are as follows: s21, exporting data in a two-dimensional grid Excel format of a nanoSystems 3D contourgraph measuring crater dots; and S22, importing the volcanic entrance mesh data into Matlab software, and setting appropriate parameters by using a Smoothdata function in the Matlab software to perform smooth denoising on the volcanic entrance mesh data. The NanoSystem 3D tester can be used for quickly and accurately measuring a three-dimensional measurement target, can simultaneously present three-dimensional and two-dimensional plane graphs, is convenient for data recording, and is used for measuring the profile of a three-dimensional object. Matlab software becomes efficient, the tool kit is complete, and data can be rapidly processed according to requirements; the model is simplified, the modeling speed is improved, and two problems can be caused if smooth denoising is not carried out: the first modeling speed is slow; the second model is too complex to generate.
In the above method for multi-software joint simulation and design of mesh points of a hot-pressed light guide plate, the step S3 adopts three-dimensional software to perform three-dimensional modeling, and the specific steps of performing boolean cut on the smooth and denoised parameters of the mesh points of the crater are as follows: importing the crater data processed by Matlab into Solidworks software, performing three-dimensional modeling by adopting the Solidworks software, performing Boolean cutting on the spherical crown and the annular mountain, and storing the cut and recombined parts as Lighttools software library files to serve as crater net point models. The Boolean cutting is to cut and separate the central spherical crown of the crater lattice point from the annular mountain, and combine the spherical crowns after reversing 180 degrees. The reason for doing so is because the actual crater dot is the concave structure, that is to say, spherical crown and convex structure annular mountain two parts constitute, and Lighttools can only use concave model or convex model, uses boolean cut to convert the concave-convex combination into the convex-convex combination, so the operation can not change actual effect.
In the above method for multi-software joint simulation and design of mesh points of a thermocompression light guide plate, the specific steps of establishing the simulation analysis of the crater mesh points by using the optical simulation design software in step S4 are as follows: establishing a light guide plate model in Lighttools software, and loading a crater mesh point model into a three-dimensional texture area of the light guide plate; running a monte carlo fiber trace simulation in 1024 × 1024 partitions using 50000000 fibers; and comparing the simulation result with the subjective taste and the uniformity of the actual light guide plate, and judging whether the brightness distribution of the simulation result is consistent with the brightness distribution of the actual light guide plate or not. If they match, the model is saved, and if they do not match, the procedure returns to step S22 to adjust the Smoothdata parameter until they match. The whole light guide plate is divided into 1024 × 1024 ═ 1048576 sampling grids. Average 45 rays per grid. According to simulation experience, the error of each grid ray is less than 10% -5% when 35-50 grid rays exist. In the invention, subjective taste refers to whether the brightness distribution presented by the simulation result is consistent with the brightness distribution measured by an actual instrument or not; the uniformity is a data calculation result, does not belong to the taste, is used for measuring the uniformity degree of the whole light guide plate, and has weaker effect than subjective taste in simulation in reference indexes.
In the above method for multi-software joint simulation and design of mesh points of a thermocompression light guide plate, the specific steps of establishing a mesh point diagram and a simulation analysis of a crater mesh point model by using optical simulation design software in step S6 are as follows: importing a net point diagram and a volcanic entrance net point model into Lighttools software to run Monte Carlo trace simulation; comparing the simulation result with the subjective taste and the uniformity of the actual light guide plate, subjectively judging whether the brightness distribution of the simulation result is consistent with the brightness distribution of the actual light guide plate or not, and inputting the mesh point density grade into a mold core dotting device to manufacture a steel plate if the brightness distribution is consistent with the brightness distribution of the actual light guide plate; if not, the process returns to step S5 to adjust the density file until reaching consistency.
Based on the same inventive concept, the invention also provides application of a method for multi-software combined simulation and design of mesh points of a hot-pressing light guide plate in the technical fields of liquid crystal display and illumination.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention provides a method for multi-software combined simulation and design of mesh points of a hot-pressing light guide plate, for example, on the basis of smooth mesh points, a smooth curved surface is roughened, burred and fluctuated to increase the scattering intensity of a mesh point model, and finally the scattering level of the mesh points is close to the scattering level of real mesh points. And after the simulated qualified dot distribution is guided into the die core dotting equipment to manufacture the steel plate die, the high-efficiency production of the uniform light guide plate can be realized.
2. Compared with the technology of directly processing approximate hemispherical lattice points on PMMA by laser, the technology of the invention has higher production efficiency of transferring the distribution of the steel plate lattice points to the light guide plate.
3. Compared with the optical simulation by using a hemispherical mesh point model, the scattering effect of the processed crater mesh point model is closer to the actual situation, and a better simulation result can be obtained.
4. The technology of the invention uses the combined simulation of solidworks, Gtools and Lighttools, so that the result is more accurate, the edition change is more convenient and faster, the development period is shortened, and the development cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following will briefly introduce embodiments or drawings used in the description of the prior art, and it is obvious that the following description is only one embodiment of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts.
FIG. 1 is a schematic view of a crater point parameter provided by the present invention;
FIG. 2 is a schematic side view of a dot pattern according to the present invention;
fig. 3 is a schematic top view structure diagram of the dot pattern provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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 obtained by a person skilled in the art without making any creative effort based on the embodiments of the present invention, belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
Example 1:
the light guide plate used in this example is a lateral 21.5 inch backlight, consisting of a light source, a light guide plate, a reflective film, a diffusing film, and a prism film. Wherein the size of the light guide plate is 478 × 278 × 2.0 mm; the material is PMMA; a refractive index of 1.49; the light source is an LED lamp strip, 46 LEDs are arranged at equal intervals, the emergent angle is 120 degrees, and the luminous flux of each LED is 22 LM.
A method for multi-software combined simulation and design of mesh points of a hot-pressing light guide plate comprises the following steps:
s1, processing a microstructure, measuring the microstructure by adopting shooting software, and measuring parameters of a crater point;
s2, processing the parameters of the crater dots measured in the step S1 by adopting data processing software;
s3, performing three-dimensional modeling by adopting three-dimensional software, and performing Boolean cutting on the smoothly denoised crater mesh point parameters;
s4, establishing a simulation analysis of the crater mesh point by adopting optical simulation design software to obtain a crater mesh point model;
s5, adopting optical dot design software to design the density gear of the light guide plate to generate a dot diagram;
and S6, adopting optical simulation design software to establish a simulation analysis of the mesh point diagram and the crater mesh point model to obtain the light guide plate mesh point model.
In the above method for multi-software joint simulation and design of mesh points of a thermocompression light guide plate, the specific steps of processing the microstructure in step S1 are as follows: and processing the surface of the steel plate to form a microstructure by using laser.
Preferably, the step S1 of measuring the microstructure by using the shooting software specifically includes: the microstructure was measured using a NanoSystem 3D profilometer.
Preferably, the crater point parameters in step S1 include a diameter of the bottom surface of the spherical cap, a depth of the concave portion of the spherical cap, and a height of the crater above the surface. Spherical crown curvature: the curvature radius of the central hemisphere of the crater lattice point; the depth of the recess: the distance between the center of the spherical crown of the crater lattice points and the surface of the light guide plate; annular hill surface height: the height from the surface of the light guide plate to the highest point of the annular mountain. All the above data are from NanoSystem 3D measurements, see fig. 1.
Preferably, the step S2 of processing the parameters of the crater point measured in the step S1 by using data processing software specifically includes: s21, exporting data in a two-dimensional grid Excel format of a NanoSystems 3D contourgraph measuring crater mesh points; and S22, importing the volcanic entrance mesh data into Matlab software, and setting appropriate parameters by using a Smoothdata function in the Matlab software to perform smooth denoising on the volcanic entrance mesh data. The NanoSystem 3D tester can be used for quickly and accurately measuring a three-dimensional measurement target, can simultaneously present three-dimensional and two-dimensional plane graphs, is convenient for data recording, and is used for measuring the profile of a three-dimensional object. Matlab software becomes efficient, the tool kit is complete, and data can be rapidly processed according to requirements; the model is simplified, the modeling speed is improved, and two problems can be caused if smooth denoising is not carried out: the first modeling speed is slow; the second model is too complex to generate.
Preferably, the step S3 is performed by three-dimensional modeling using three-dimensional software, and the specific steps of performing boolean cutting on the smoothed and denoised crater point parameters include: importing the crater data processed by Matlab into Solidworks software, performing three-dimensional modeling by adopting the Solidworks software, performing Boolean cutting on the spherical crown and the annular mountain, and storing the cut and recombined parts as Lighttools software library files to serve as crater net point models. The Boolean cutting is to cut and separate the central spherical crown of the crater lattice point from the annular mountain and combine the spherical crown after reversing 180 degrees. The reason for doing this is because the actual crater dots are composed of concave structures, that is, the spherical caps and the convex structures of the annular mountain, and the Lighttools can only use concave models or convex models, and the boolean cut is used to convert the concave-convex combinations into the convex-convex combinations, so the operation does not change the actual effect.
Preferably, the step S4 of establishing the simulation analysis of the crater dots by using the optical simulation design software includes the specific steps of: establishing a light guide plate model in Lighttools software, and loading the crater mesh point model into a three-dimensional texture area of the light guide plate; running a monte carlo fiber trace simulation in 1024 × 1024 partitions using 50000000 fibers; and comparing the simulation result with the subjective taste and the uniformity of the actual light guide plate, and judging whether the brightness distribution of the simulation result is consistent with the brightness distribution of the actual light guide plate or not. If they match, the model is saved, and if they do not match, the procedure returns to step S22 to adjust the Smoothdata parameter until they match. The whole light guide plate is divided into 1024 × 1024 ═ 1048576 sampling grids. Average 45 rays per grid. According to simulation experience, the error of each grid ray is less than 10% -5% when 35-50 grid rays exist. In this embodiment, subjective taste means whether the brightness distribution presented by the simulation result is consistent with the brightness distribution measured by an actual instrument; the uniformity is a data calculation result, does not belong to the taste, is used for measuring the uniformity degree of the whole light guide plate, and has weaker effect than subjective taste in simulation in reference indexes.
Preferably, the step S6 of establishing the simulation analysis of the dot pattern and the crater dot pattern by using the optical simulation design software includes the specific steps of: importing a net point diagram and a volcanic entrance net point model into Lighttools software to run Monte Carlo trace simulation; comparing the simulation result with the subjective taste and the uniformity of the actual light guide plate, subjectively judging whether the brightness distribution of the simulation result is consistent with the brightness distribution of the actual light guide plate or not, and inputting the mesh point density grade into a mold core dotting device to manufacture a steel plate if the brightness distribution is consistent with the brightness distribution of the actual light guide plate; if not, the process returns to step S5 to adjust the density file until reaching consistency.
Example 2:
in addition, the invention also provides application of a method for multi-software combined simulation and design of mesh points of the hot-pressing light guide plate in the technical fields of liquid crystal display and illumination.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A method for multi-software combined simulation and design of mesh points of a hot-pressing light guide plate is characterized by comprising the following steps:
S1, processing a microstructure, measuring the microstructure by adopting shooting software, and measuring parameters of a crater point;
s2, processing the parameters of the crater dots measured in the step S1 by adopting data processing software;
s3, performing three-dimensional modeling by adopting three-dimensional software, and performing Boolean cutting on the smooth denoised crater dot parameters;
s4, establishing a simulation analysis of the crater mesh point by adopting optical simulation design software to obtain a crater mesh point model;
s5, adopting optical dot design software to design the density gear of the light guide plate to generate a dot diagram;
and S6, establishing a simulation analysis of the mesh point model and the crater mesh point model by adopting optical simulation design software to obtain the light guide plate mesh point model.
2. The method for multi-software combined simulation and design of mesh points of a hot-pressed light guide plate according to claim 1, wherein the step S1 of processing the microstructure comprises the following steps: and processing the surface of the steel plate to form a microstructure by using laser.
3. The method for multi-software combined simulation and design of mesh points of a hot-pressed light guide plate according to claim 1, wherein the step S1 of measuring the microstructure by using the shooting software comprises the following specific steps: the microstructure was measured using a NanoSystem 3D profilometer.
4. The method as claimed in claim 1, wherein the parameters of the crater dots in step S1 include the diameter of the bottom surface of the spherical cap, the depth of the concave portion of the spherical cap, and the height of the crater above the surface.
5. The method as claimed in claim 3, wherein the step S2 of processing the parameters of the crater dots measured in step S1 with the data processing software comprises the following steps: s21, exporting data in a two-dimensional grid Excel format of a nanoSystems 3D contourgraph measuring crater dots; and S22, importing the volcanic entrance mesh data into Matlab software, and setting appropriate parameters by using a Smoothdata function in Matlab to perform smooth denoising on the volcanic entrance mesh data.
6. The method for multi-software co-simulation and design of mesh points of a hot-pressed light guide plate according to claim 5, wherein the step S3 is implemented by three-dimensional modeling with three-dimensional software, and the specific steps of performing Boolean cutting on the parameters of the smooth denoised crater mesh points are as follows: importing the crater data processed by Matlab into Solidworks software, performing three-dimensional modeling by adopting the Solidworks software, performing Boolean cutting on the spherical crown and the annular mountain, and storing the cut and recombined parts as Lighttools software library files to serve as crater net point models.
7. The method for multi-software combined simulation and design of mesh points of a thermocompression light guide plate according to claim 5, wherein the step S4 of establishing the simulation analysis of the crater mesh points by using the optical simulation design software comprises the following specific steps: establishing a light guide plate model in Lighttools software, and loading the crater mesh point model into a three-dimensional texture area of the light guide plate; running a monte carlo fiber trace simulation in 1024 x 1024 partitions using 50000000 fibers; and comparing the simulation result with the subjective taste and the uniformity of the actual light guide plate, if the simulation result is consistent with the subjective taste and the uniformity of the actual light guide plate, storing the model, and if the simulation result is inconsistent with the actual light guide plate, returning to the step S22 to adjust the Smoothdata parameter until the simulation result is consistent with the actual light guide plate.
8. The method for multi-software co-simulation and design of mesh points of a thermocompression light guide plate according to claim 1, wherein the steps of establishing the mesh points and the simulation analysis of the crater mesh point model by using the optical simulation design software in the step S6 are as follows: importing a net point diagram and a volcanic entrance net point model into Lighttools software to run Monte Carlo trace simulation; comparing the simulation result with the subjective taste and the uniformity of the actual light guide plate, subjectively judging whether the brightness distribution of the simulation result is consistent with the brightness distribution of the actual light guide plate or not, and inputting the mesh point density grade into a mold core dotting device to manufacture a steel plate if the brightness distribution of the simulation result is consistent with the brightness distribution of the actual light guide plate; if not, the process returns to step S5 to adjust the density file until reaching consistency.
9. The application of the method for multi-software combined simulation and design of mesh points of a hot-pressed light guide plate according to any one of claims 1 to 8 in the technical fields of liquid crystal display and illumination.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040129351A1 (en) * | 2002-11-14 | 2004-07-08 | Kouji Iwasaki | Method and system for fabricating three-diemensional microstructure |
| US20100070060A1 (en) * | 2008-09-12 | 2010-03-18 | Tsinghua University | Method for designing a light guide plate and method for manufacturing the same |
| CN101885221A (en) * | 2010-06-25 | 2010-11-17 | 东莞市亚通光电有限公司 | Method for manufacturing light guide plate |
| CN108279458A (en) * | 2017-01-05 | 2018-07-13 | 苏州欧匹希光电有限公司 | A kind of light guide plate optical design method |
| CN108680987A (en) * | 2018-06-29 | 2018-10-19 | 福州大学 | A kind of network point distribution design method for liquid crystal display light guide plate |
| CN110412679A (en) * | 2019-08-15 | 2019-11-05 | 翰博高新材料(合肥)股份有限公司 | Hot-pressing light guide plate, backlight, display device and preparation method with high site |
-
2022
- 2022-02-23 CN CN202210169104.XA patent/CN114518655A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040129351A1 (en) * | 2002-11-14 | 2004-07-08 | Kouji Iwasaki | Method and system for fabricating three-diemensional microstructure |
| US20100070060A1 (en) * | 2008-09-12 | 2010-03-18 | Tsinghua University | Method for designing a light guide plate and method for manufacturing the same |
| CN101885221A (en) * | 2010-06-25 | 2010-11-17 | 东莞市亚通光电有限公司 | Method for manufacturing light guide plate |
| CN108279458A (en) * | 2017-01-05 | 2018-07-13 | 苏州欧匹希光电有限公司 | A kind of light guide plate optical design method |
| CN108680987A (en) * | 2018-06-29 | 2018-10-19 | 福州大学 | A kind of network point distribution design method for liquid crystal display light guide plate |
| CN110412679A (en) * | 2019-08-15 | 2019-11-05 | 翰博高新材料(合肥)股份有限公司 | Hot-pressing light guide plate, backlight, display device and preparation method with high site |
Non-Patent Citations (1)
| Title |
|---|
| 刘方祥: "LCD导光板散射网点激光加工技术研究", 中国优秀硕士学位论文全文数据库, pages 43 - 56 * |
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