CN103499853B - Light guide plate, planar light emitting device, liquid crystal display device, liquid crystal display terminal equipment and manufacturing method of light guide plate - Google Patents

Light guide plate, planar light emitting device, liquid crystal display device, liquid crystal display terminal equipment and manufacturing method of light guide plate Download PDF

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Publication number
CN103499853B
CN103499853B CN201310459762.3A CN201310459762A CN103499853B CN 103499853 B CN103499853 B CN 103499853B CN 201310459762 A CN201310459762 A CN 201310459762A CN 103499853 B CN103499853 B CN 103499853B
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China
Prior art keywords
light guide
guide plate
adhesive glue
water white
scattering particles
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Expired - Fee Related
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CN201310459762.3A
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Chinese (zh)
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CN103499853A (en
Inventor
唐龙
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Hangzhou Auspicious Aura Electricity Science And Technology Ltd
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Hangzhou Auspicious Aura Electricity Science And Technology Ltd
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Priority to CN201310459762.3A priority Critical patent/CN103499853B/en
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Publication of CN103499853B publication Critical patent/CN103499853B/en
Priority to PCT/CN2014/087451 priority patent/WO2015043490A1/en
Priority to TW103133731A priority patent/TW201512739A/en
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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
    • 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
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/006—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to produce indicia, symbols, texts or the like
    • 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
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The invention discloses an efficient energy-saving microstructural light guide plate, a planar light emitting device provided with the light guide plate, a liquid crystal display device, liquid crystal display terminal equipment and a manufacturing method of the light guide plate. A scattering pattern structure on the bottom plane of the light guide plate is formed by providing a colorless and transparent adhesive glue pattern layer on the bottom plane of the substrate, a stereoscopic microstructural scattering pattern layer is obtained by planting and sticking a plurality of mini scattering particles on the adhesive glue pattern layer, all or part of the planted and stuck mini scattering particles is bared and protrudes at the surface of the adhesive glue pattern layer, a part of the mini scattering particles, which is bared and protrudes at the surface of the adhesive glue pattern layer, is embedded into the colorless and transparent adhesive glue pattern layer, and is firmly bonded by the adhesive glue, and the other part of the mini scattering particles is bared and protrudes outside the colorless and transparent adhesive glue pattern layer. After adopting the light guide plate, a brightness increase rate of the planar light emitting device is more than 20%. According to the light guide plate prepared by the invention, the light guide plates in small, middle and big sizes can be manufactured at high quality, and the brightness increase rate of the light guide plate is fully realized.

Description

The manufacture method of light guide plate, planar emission apparatus, liquid crystal indicator, liquid crystal display terminal equipment and light guide plate
Technical field
The present invention relates to light guide plate, planar emission apparatus, liquid crystal indicator, liquid crystal display terminal equipment, the invention still further relates to the manufacture method of this light guide plate.
Background technology
Conventionally, liquid crystal display comprises the planar emission apparatus that shows the display panels of image and light is offered to display panels.Display panels comprises two transparent substrates and is arranged on the liquid crystal layer between these two substrates, with the variation of the arrangement of the liquid crystal molecule in response to the liquid crystal layer being caused by electric signal and show image.
Planar emission apparatus is divided into straight-down negative planar emission apparatus and side-light type planar emission apparatus according to light source setting position.
Straight-down negative planar emission apparatus has the multiple light sources that are arranged in the region stacked with liquid crystal panel.Then, so thicker owing to needing to there is certain equal electrical distance between liquid crystal panel and light source, also has the larger equal tabula rasa of fiber-loss, to light source is provided on liquid crystal panel equably, so cause thickness, cost, power consumption, the failure rate of liquid crystal display to increase.
Side-light type planar emission apparatus, is light source to be arranged on to the outside of liquid crystal panel and not in same plane but stacked with liquid crystal panel, and uses and have certain thickness light guide plate the light from region exterior is provided on liquid crystal panel equably.Although because the light from light source transmitting is through transmission and the conversion of light guide plate, wherein part light is depleted.But, along with liquid crystal display is towards large scale, ultrathin, low-power consumption, high brightness, low cost future development, and side-light type planar emission apparatus but the has advantage such as ultra-thin attractive in appearance, good evenness, cost are low, failure rate is low, so side-light type planar emission apparatus is the main flow of following LCD backlight.
According to the data of the Industrial Technology Research Institute of Taiwan, loss in the light transmission of side-light type planar emission apparatus is also larger, suppose that light source sends only 100%, 60% the light of only having an appointment after the light guide plate of side-light type planar emission apparatus out enters Optical Thin Film and liquid crystal panel.Because light guide plate is that to convert through transmission the light receiving from light inlet side end face to larger area uniform planar luminous and towards the transmitting of method, the height of the difficulty of visible its practical function is big, so light guide plate is the important core parts in planar emission apparatus, thereby loss is up to 40% more than while also causing light transmission, be global photoelectric technology personnel's important research object so how to reduce the loss of light in light guide plate internal transmission transfer process.
Light guide plate, it comprises water white transparency substrate, inject inner light inlet side end face for receiving light, with light inlet side end face relatively, crossing all the other subsides scribble the reflection side end face of reflectance coating, and the light crossing with it penetrate from inside go out optical plane and the relative baseplane formation with scattering pattern with going out optical plane.
At present, the kind of light guide plate by size, structure and manufacturing process mainly contain two kinds: a kind of is the higher microstructure baseplane light guide plate of optical efficiency that adopts injection molding technology to produce for small size; Another kind is to adopt light guide ink on baseplane, to carry out the lower printing type light guiding plate of optical efficiency of serigraphy scattering pattern for large scale.
In small size field, the current liquid crystal panel along with notebook computer, panel computer, smart mobile phone is towards the development of large scale, lightweight, ultrathin type, high optical efficiency and the lifting of lcd technology, certainly will require light guide plate lighter and thinner, develop below towards 0.8MM from original 2.00MM left and right, due to thickness attenuation, this will there will be some problems aspect forming light guide plate.Utilize traditional ejection forming technique to complete thin light guide panel if expected, on equipment, just must use so the Jet forming machine of high rate of fire instead, certainly general used ejection formation also can be produced at present, still, but can face the problem of planarization and production.But when firing rate is too high, easily produce the problem such as residual stress and molecular orientation because dwell pressure is excessive, and then cause the generation of buckling deformation.So, for light guide plate dealer, also just constantly pursue the technology of upgrading, produce thin light guide panel cheaply.
In big-and-middle size field, although there is the microstructure light guide plate that many optical efficiency are higher in patent database, but really will realize batch production time, all running into technology cannot solve, some employing laser technologies or computer carving technology are made, not only very slow but also optical efficiency and homogeneity are all undesirable, cannot meet the requirement of modern liquid crystal display backlight and plate lighting.Therefore the method that, up to the present still adopts light guide ink to carry out serigraphy scattering pattern on light guide plate baseplane makes.In patent database, have the bulletin document of application number 200710163134.5, its disclosed scheme is in light guide ink, to add the acrylic acid pearl of footpath grain 4um-6um; Also there is the patent announcement of the patent No. 02149645.5,02151636.7,02250620.9, all adopt and in light guide ink, add respectively the scattering particle such as SIO2, PMMA, owing to adding these particles all in light guide ink, and acrylic acid pearl, PMMA and ink are all similar acryl resins, so can directly dissolve, resembling SIO2 itself is also a kind of raw material in light guide ink, then adds and there is no need, and optical efficiency is not had to what raising.Also has the patent announcement of the patent No. 02152108.5, that the organic filling spherolite of 10 um-50 um is added and in bonding agent, is uniformly coated on the going out on optical plane of light guide plate, here use is generally the acrylic adhesive agent of the such aqua character of similar methenyl choloride, instead of paste adhesive glue, be again whole surface-coated instead of be made into pattern, destroy like this total reflection principle of light guide plate, make light cannot be delivered to central area, moreover their goal of the invention is the cost of the effect saving backlight module in order to substitute diffusion barrier.Not only luminous energy loss is larger in light transmission and transfer process for the serigraphy light guide plate of prior art, and also discharge in process of production the healthy of toxic gas infringement Manufacturing Worker, so eliminate already in small size field, cannot realize in large-size light-conducting plate again but produce undersized injection molding manufacturing technique.Along with the size of LCD TV, liquid crystal display and plane litillumination devices is increasing, energy-saving and emission-reduction responsibility more and more heavier, with promulgate the pressure of mandatory efficiency grade in the face of global various countries, the energy-efficient light guide plate of large scale and manufacturing technology thereof have been proposed to more stern challenge.
Because the predicament that above-mentioned large, medium and small size light guide plate field faces, current global liquid crystal flat-panel shows that field and lighting field urgently need the technical barrier solving just.
Summary of the invention
First object of the present invention is just to provide a kind of more energy-efficient, environmental protection more, more ultra-thin, no matter size is large, medium and small can realize the light guide plate that low cost rapid batch is produced.For this reason, the present invention is by the following technical solutions:
A kind of light guide plate, it comprises water white transparency substrate, described substrate has for receiving light injects inner light inlet side end face, what light penetrated from inside goes out optical plane, the baseplane with scattering pattern relative with going out optical plane, it is characterized in that: on the baseplane of this water white transparency substrate or/and go out water white transparency adhesive glue patterned layer is set on optical plane, and in this adhesive glue patterned layer, plant the several miniature scattering particles of adhesion and obtain microstructure scattering space pattern layer, plant all or part of exposed protrusion of sticky miniature scattering particles on adhesive glue patterned layer surface, exposed protrusion bonded glue within a part for the lip-deep miniature scattering particles of adhesive glue patterned layer is embedded into water white transparency adhesive glue patterned layer is bonding securely, the exposed protrusion of remainder is outside water white transparency adhesive glue patterned layer.
Described planting sticky refers to that miniature scattering particles enter in water white transparency adhesive glue patterned layer scattering particles are partly or entirely embedded in adhesive glue patterned layer by external force.
Miniature scattering particles of the present invention are bonded together by water white transparency adhesive glue patterned layer and transparency carrier, between miniature scattering particles and substrate, can contact, and can be also non-contacting.
Water white transparency substrate as required thickness from 0.3 millimeter to 10 millimeters; Material is at the wherein a kind of soft or hardboard material such as polymethyl methacrylate, polycarbonate, MS resin, polyethylene terephthalate, polystyrene, Polyvinylchloride, glass, ultra-clear glasses, polyvinyl resin, amorphous polyolefin, ABS, PVC, PET; Structure be dull and stereotyped also can clapboard; It is smooth that transparency carrier goes out on optical plane, also can be perpendicular to the water white sheet material of the array of the micro-bars shape semicolumn of light inlet side end face or micro-bars shape prism array microstructure.
The product demand that this microstructure scattering space pattern layer can throw light on is as required carried out optical design.
If be applied to the product of liquid crystal display backlight, flat-plate luminous illumination, thin luminous advertising lamp box and so on, described microstructure scattering space pattern layer can be designed to by the multiple microstructure scattering space pattern layer cell array distribution and constitutions that are stained with several miniature scattering particles of planting at regular intervals of the tool for regulating overall light brightness and uniformity coefficient, little and sparse near light inlet side end face place, large and close away from light inlet side end face place.And plant and be stained with several microstructure scattering particles on each microstructure scattering space pattern layer unit.The profile of microstructure scattering space pattern layer unit figure can be the bent limit shape such as circular, oval, can be also the polygons such as rectangle, square, hexagon.
Provide brightness if be applied to the block illuminations such as illuminated keyboard, luminous instrument board, advertising sign mark, described microstructure scattering space pattern layer can be designed for providing brightness to block or picture and text, plants at its corresponding block or picture and text position the block graphics of stereo microstructure fringe area or the picture and text composition that are stained with several miniature scattering particles.
Water white transparency adhesive glue can be the colourless transparent resin type adhesive glue that contains ultraviolet absorbing agent; Also can be heat curing colourless transparent resin type adhesive glue; Can also be natural drying curing colourless transparent resin type adhesive glue, now widely used Main Ingredients and Appearance be the resin materials such as polymethylmethacrylate material (PMMA), cycloolefin macromolecule material (COP) or polycarbonate material (PC).
These microstructure scattering particles are water white particles.
When the particle diameter of miniature scattering particles is less than adhesive glue thickness, planting scattering particles while gluing can embed in bonding glue-line naturally completely, can not have effect for embedding bonding glue-line inscattering particle, but continue overlapping planting thereon and be stained with scattering particles, until be in scattering particles on transparent bonding glue-line surface and just play the very good effect of same reflection, total reflection and refraction.When the particle diameter of miniature scattering particles is 2 times of adhesive glue thickness, for spherical miniature scattering particles, its xsect maximum position is just in time in transparent adhesive glue surface, thereby the amount of light that makes to propagate in light guide plate in scattering particles is more, and effect is better; When miniature scattering particles particle diameter is greater than adhesive glue thickness, the latter half embeds in bonding glue-line, also all has above-mentioned same effect preferably.
Therefore, miniature scattering particles particle diameter generally between 5 microns to 800 microns, preferably 20 microns to 200 microns of particle diameters.
Transparent miniature scattering particles refractive index is between 1.1 to 2.8.
Transparent miniature scattering particles material is one or more the mixing wherein such as polymethyl methacrylate, glass, polycarbonate, MS resin, polyethylene terephthalate, tygon, Polyvinylchloride, polyacrylonitrile, polystyrene, nylon or melamine.
The shape of transparent miniature scattering particles can be the polyhedron such as the curved body such as cone, spheroid or triangular pyramid, polygonal pyramid body, can be also irregular polyhedrons, can be also several mixing.
Miniature scattering particles preferred version is 20 microns to 200 microns of particle diameters, the globular glass microballon of refractive index 1.93; Or, be 20 microns to 200 microns of particle diameters, the transparent polymethyl methacrylate microballoon of refractive index 1.49.
Because the thickness of water white transparency adhesive glue patterned layer that applies is generally between 10 microns to 80 microns, miniature scattering particles particle diameter in preferred version is in the time of 20 microns to 200 microns, plant the degree of depth adhering in transparent adhesive glue just in half left and right at scattering particles, at this moment scattering particles are larger with the cross-sectional area on transparent adhesive glue surface, thereby the amount of light that makes to propagate in light guide plate in scattering particles is more, thereby the reflection ray that light is occurred in the time being mapped to the outside surface of transparent grain (with outside air interface), total reflection light and refracted ray are more, greatly improved the brightness that optical plane like this.
On miniature scattering particles material, select, light transmission is better, loss when light transmition is just less, thereby the brightness of using optical plane improves, thus in numerous materials or polymethyl methacrylate, cycloolefin macromolecule material (COP), polycarbonate material (PC) relative with glass light transmission better.Again in commaterial refractive index more the high grade of transparency is better, the brightness that can use equally optical plane improves again, so glass refraction 1.93 is relatively high, and transparent polymethyl methacrylate refractive index 1.49 is relatively high too.
These scattering particles can also be the particles through surface coating processing, and described film can be the metal coatings such as vacuum plated aluminum film.Such scheme is the reflection as the mirror in the time being mapped to the plated film inside surface (with adhesive glue interface) of scattering particles in the time that light is propagated in by light guide plate, it not the diffuse reflection that resembles serigraphy light guide ink, such fiber-loss is less, so optical efficiency is also just higher, and it is high to produce simple and convenient yields in batches.
In addition, no matter on the baseplane of transparency carrier or/and go out to arrange on optical plane the microstructure scattering space pattern layer of same structure, have good optical efficiency effect.
Second object of the present invention is to provide a kind of novel combination light guide plate of utilizing above-mentioned light guide plate, and it not only has advantages of above-mentioned light guide plate, and can also further improve utilization factor and brightness to light.For this reason, the present invention is by the following technical solutions:
A kind of combination light guide plate, it has two or two above above-mentioned any one light guide plate to be spatially formed by stacking.
The 3rd object of the present invention is to provide a kind of planar emission apparatus that utilizes above-mentioned light guide plate, this planar emission apparatus is except can be LCD backlight module, plate lighting light fixture, can also be any planar emission apparatus that contains above-mentioned light guide plate, such as the efficient energy-conserving product such as dull and stereotyped Down lamp, thin luminous advertising lamp box, illuminated keyboard, illumination instrument instrument and Luminous signing board mark.For this reason, the present invention is by the following technical solutions:
A kind of planar emission apparatus, comprises the light source before the light inlet side end face that is arranged on described light guide plate, and described planar emission apparatus includes above-mentioned any light guide plate or any combination light guide plate.
The 4th object of the present invention is to provide a kind of liquid crystal indicator that utilizes above-mentioned light guide plate, and this crystal device can be liquid crystal module, liquid crystal display.For this reason, the present invention is by the following technical solutions:
A kind of liquid crystal indicator, comprises the display panels before optical plane or planar emission apparatus that goes out that is arranged on light guide plate, and described liquid crystal indicator includes above-mentioned any light guide plate or any combination light guide plate or any planar emission apparatus.
The 5th object of the present invention is to provide a kind of liquid crystal display terminal equipment that utilizes above-mentioned light guide plate, this terminal device is except can be computer, mobile phone, televisor, can also be any equipment that contains liquid crystal indicator, such as the efficient energy-conserving product such as, liquid crystal display advertisement machine, display screen, electronic whiteboard, e-book, liquid crystal instrument and meter plant equipment.For this reason, the present invention is by the following technical solutions:
A kind of liquid crystal display terminal equipment, comprise the device and equipment and the control system that are arranged on outside light guide plate, planar emission apparatus or liquid crystal indicator, described liquid crystal display terminal equipment includes above-mentioned any light guide plate or any combination light guide plate or any planar emission apparatus or any liquid crystal indicator.
The 6th object of the present invention is to provide the manufacture method of above-mentioned light guide plate, it is characterized in that it comprises the following steps:
(1), provide water white transparency substrate.
(2), providing water white transparency adhesive glue, this water white transparency adhesive glue is ultraviolet photo-curing colourless transparent resin type adhesive glue; Or infrared heat solidifies colourless transparent resin type adhesive glue; Or natural drying curing colourless transparent resin type adhesive glue one wherein.
(3), adopt the method applying above-mentioned water white transparency adhesive glue to be coated to by the good pattern of optical design in advance on the baseplane of water white transparency base material or/and go out on optical plane, form one deck water white transparency adhesive glue patterned layer.The painting method that wherein adopted is the hollow out steel version of utilizing screen printing plate, laser engraving or the chemical etching of the design producing designing, utilizes screen process press employing to scrape technology transparent adhesive glue is coated in water white substrate base plane or/and go out on optical plane; Or the painting method that wherein step (3) adopts is to utilize the pattern computer output designing to adopt single spraying head or many shower nozzles of digital ink-jet printer that transparent adhesive glue is coated in water white substrate base plane or/and go out on optical plane; Or, the painting method that step (3) adopts is to utilize the bat printing steel version of the design producing that designs to adopt transfer-print technology that transparent adhesive glue is coated in water white substrate base plane or/and go out on optical plane: or the painting method that step (3) adopts is to utilize the design producing printing gravure designing to adopt intaglio press or intaglio plate reversal printing machine that transparent adhesive glue is coated in water white substrate base plane or/and go out on optical plane; Or the painting method that step (3) adopts is to utilize the pierced pattern matrix of the design producing designing to adopt the similar technology of spraying paint of pressurized air that transparent adhesive glue is coated in water white substrate base plane or/and go out on optical plane.
(4), provide described miniature scattering particles, sticky method is planted in employing, the above-mentioned miniature scattering particles that provide are planted on the water white transparency adhesive glue pattern that adheres to transparency carrier, sticky method is planted in this employing, be adopt HV generator produce high-pressure electrostatic effect under discontinuity suction and repulsion miniature scattering particles are planted equably and are adhered in water white transparency adhesive glue patterned layer; Or, utilize the impulse force of freely falling body and gravity that miniature scattering particles are planted equably and adhered in water white transparency adhesive glue patterned layer; Or, adopt air compressor to utilize compressed-air actuated spray power that miniature scattering particles are planted equably and adhered in water white transparency adhesive glue patterned layer.
(5) the water white transparency substrate that, is stained with above-mentioned miniature scattering particles to planting is cured processing, water white transparency adhesive glue is solidified, thereby make described energy-efficient microstructure light guide plate, this solidifies the method for processing is that the employing ultraviolet photo-curing machine of use ultraviolet photo-curing water white transparency adhesive glue is cured; To using the curing drying tunnel of employing infrared heat or the baking oven that infrared heat solidifies water white transparency adhesive glue to be cured; To using the air-dry dry or natural drying method of the employing fermented soya beans, salted or other wise of natural drying curing water white transparency adhesive glue to be cured.
For the light guide plate of small dimension, can in the situation that layout becomes large specification, carry out processing, and then adopt laser or machine cuts to become small dimension, to enhance productivity.
Can adopt high-pressure electrostatic to plant sticky technology for erose scattering particles such as similar cones plants sticky, can make so the bulky gravitation obtaining of scattering particles or repulsion large, thereby make its acceleration fast, realize it and implant at first in bonding glue-line, just can make such light guide plate embody better optical efficiency effect.Can adopt and rely on gravity to plant sticky method for the scattering particles of similar spheroid regular shape, such equipment investment is still less simpler, thereby but planting when sticky owing to being subject to the impact of external force to cause scattering particles likely to have influence on optical efficiency effect and fastness to adhesive glue unit figure outer rolling, still adopting comparatively speaking high-pressure electrostatic to plant method optical efficiency effect and the fastness of sticky fabrication techniques can be better.
The colourless transparent resin type adhesive glue that preferential selection contains ultraviolet absorbing agent in the selection of water white transparency adhesive glue, because of such adhesive glue when the photocuring relatively environmental protection do not have harmful gas to discharge infringement Manufacturing Worker, and the fast less energy consumption of curing rate, the light guide plate optical efficiency effect of producing is identical again.
In the main material of water white transparency adhesive glue and the selection of scattering particles material, preferential select with transparent base material identical, because of the bonding intensity between identical material best.
Owing to adopting technique effect of the present invention, the present invention has following beneficial effect:
According to optical principle and light transmition alignment analysis, what the light guide plate of currently available technology occurred in the time that the light of propagating in light guide plate is encountered silk-screen light guide ink is diffuse reflection, and the technical solution used in the present invention is the light of propagating when in light guide plate, encountering vacuum coating particle time image mirror equally reflects; Or encounter on the miniature scattering particles of the transparent high index of refraction of height that is similar to miniature lenslet and outside air interface reflect, total reflection and refraction, therefore luminous energy loss is little, thereby greatly improve the utilization factor of opposite side light source, so that realized energy-efficient object.
Contrast for example, adopt 32 inch liquid crystal television light conducting plate samples of this fabrication techniques and prior art liquid crystal television light conducting plate sample in the constant situation of electric current and voltage, to reach 28.8% through NO:2012-3055 " survey report " the luminance raising rate of national computer peripheral Quality Supervision and Inspection Center in identical backlight module, this is difficult to expect, generally wants to improve 5% and be all difficult in this area.
Use backlight module, liquid crystal indicator, LCD TV, computer, panel computer, mobile phone, plate lighting light fixture, illuminated keyboard, luminous instrument board, thin luminous advertising lamp box, the luminescence scutcheon mark of so energy-efficient light guide plate made can realize energy-efficient object.
Owing to adopting method for manufacturing light guide plate of the present invention, there is following useful technique effect:
With regard to microstructure light guide plate, modal is to adopt to open precision die processed and utilize full electric injection molding machine to carry out injection mo(u)lding to make, but injection molding process technology cannot be manufactured large-size light-conducting plate at all, so high efficiency microstructure light guide plate is difficult in large scale field realize always.Adopt method for manufacturing light guide plate of the present invention, can not only make energy-efficient large scale microstructure light guide plate, the brightness of the planar emission apparatus that adopts such light guide plate is significantly improved, and small investment speed of production is fast.And can also produce small dimension light guide plate, and do not have the light guide plate internal stress problem that injection molding process technology produces and cause ultra-thin light guide board buckling deformation, thereby greatly improve yields.
Therefore the invention of this energy-efficient light guide plate and production method thereof, because it has advantages of that three-dimensional microstructure, optical efficiency are high, small investment, cost is low, speed of production is fast, yields is high, production environmental protection, the large, medium and small size restrictions that is not subject to no matter, will substitute the lower middle large-size light-conducting plate of optical efficiency of the above making such as employing serigraphy light guide ink as supporting in LCD TV, computer, display screen, planar lamp etc. of existing 15 inch comprehensively.In mobile phone, panel computer, notebook small size field, due to compare with mould with the all-electric injection-moulding devices of at least investing easily of current injection mo(u)lding microstructure light guide plate several ten million investment of the present invention can say arrive less very little, especially also can there is not buckling deformation phenomenon yields to the light guide plate of ultrathin trend high, and optical efficiency is suitable, so in small size field, it will be divided into half the sky with injection mo(u)lding microstructure light guide plate, and can constantly nibble this field.
Brief description of the drawings
Fig. 1 is the schematic diagram of plate transparency carrier.
Fig. 2 is the schematic diagram of wedge shape transparency carrier.
Fig. 3 is that upper surface is the structural representation of micro-semi-cylindrical prism-type transparency carrier.
Fig. 4 is that upper surface is the structural representation of micro-prism transparency carrier.
Fig. 5 is that light source is arranged on the planimetric map of minor face as the pattern of adhesive layer of light inlet side end face.
Fig. 6 is that light source is arranged on the planimetric map of two long limits as the pattern of adhesive layer of light inlet side end face.
Fig. 7 is Luminous keyboard of comptuer light guide plate adhesive glue patterned layer planimetric map.
Fig. 8 is advertisement graph-text identification light guide plate adhesive glue patterned layer planimetric map.
Fig. 9 is the outboard profile that has applied adhesive glue patterned layer light guide plate.
Figure 10 is the outboard profile of planting sticky microspheroidal scattering particles light guide plate in adhesive glue patterned layer.
Figure 11 plants in adhesive glue patterned layer to be stained with coniform scattering particles light guide plate outboard profile.
Figure 12 is the planimetric map of the circular microstructure scattering space pattern layer unit that contain scattering particles.
Figure 13 is the planimetric map of the square microstructure scattering space pattern layer unit that contain scattering particles.
Figure 14 is the construction profile of miniature spherical scattering particles microstructure scattering space pattern layer unit.
Figure 15 is the construction profile of miniature spherical overlapping scattering particles microstructure scattering space pattern layer unit.
Figure 16 is the construction profile of spherical overlapping scattering particles microstructure scattering space pattern layer unit.
Figure 17 is the construction profile of coniform scattering particles microstructure scattering space pattern layer unit.
Figure 18 is the construction profile of coniform overlapping scattering particles microstructure scattering space pattern layer unit.
Figure 19 is the construction profile of coniform overlapping scattering particles microstructure scattering space pattern layer unit.
Figure 20 is the light guide ink site outboard profile of existing screen printing technique.
Figure 21 is microstructure light guide plate manufacture craft path profile.
Figure 22 is the structural representation of embodiment 1 one side microstructure flat light guide plate.
Figure 23 is the structural representation of embodiment 2 one side microstructure flat light guide plate.
Figure 24 is the structural representation of embodiment 3 one side microstructure Wedge shape light conduction boards.
Figure 25 is the structural representation of embodiment 4 double-side micro structure flat light guide plate.
Figure 26 is the structural representation that the single double-side micro structure of embodiment 5 overlaps to form flat light guide plate.
In above diagram, wherein 1 is transparency carrier, the 2nd, and light inlet side end face, the 3rd, baseplane, the 4th, bright dipping upper surface, the 5th, reflection side end face, the 6th, microstructure scattering space pattern layer unit, the 7th, bonding glue-line, the 8th, scattering particles, the 9th, light source, the 10th, microstructure scattering space pattern layer unit structure for amplifying, the 11st, reflectance coating, the 12nd, brightness enhancement film, the 13rd, diffusion barrier, the 14th, liquid crystal panel, the 15th, backlight module, the 16th, liquid crystal module.
Figure 27 is the microstructure scattering space pattern layer unit photo in kind that adopts the background blueness of this fabrication techniques.
Figure 28 is the structural representation of embodiment 13 one side microstructure flat light guide plate.
Embodiment
Embodiment 1: with reference to Figure 22,5,12,14,15,16,20,1,9,10,21,27,32 inch liquid crystal television light conducting plate and LCD TV thereof
Figure 10 is the side structure schematic diagram of the cellular energy-efficient microstructure light guide plate of 32 inch LCD TV, light guide plate comprises the plate substrate 1 of water white transparency methyl-prop diluted acid formicester, inject inner light inlet side end face 2 for receiving light for one, relative with light inlet side end face, all the other subsides of intersecting scribble the reflection side end face 5 of reflectance coating, and the light crossing with it from inside penetrate go out optical plane 4 and the relative baseplane with scattering micro structured pattern 3 forms with going out optical plane 4, wherein the microstructure scattering space pattern layer on baseplane 3 be by substrate base plane, be coated with one deck as shown in Figure 5 distribution patterns for regulating the colourless transparent resin type adhesive glue unit (as Figure 12) of tool multiple circular ultraviolet curings at regular intervals of overall light brightness and uniformity coefficient, and along the direction away from light inlet side end face 2, this adhesive glue unit figure (as Figure 12) is ascending, by the colourless transparent resin type adhesive glue patterned layer 7 of dredging the ultraviolet curing that close order array distribution forms, and in this adhesive glue patterned layer 7, plant the microstructure scattering space pattern layer that is stained with the transparent polymethyl methacrylate microballoon 8 of 60 microns of refractive indexes 1.49 and obtain, the lip-deep transparent methyl-prop diluted acid formicester microballoon 8 of adhesive glue patterned layer is all only partially embedded in water white transparency adhesive glue patterned layer 7 to be bonded together with transparency carrier 1 securely, remainder is exposed outside water white transparency adhesive glue patterned layer 7.
Figure 12 is the structural plan figure of the circular microstructure scattering space pattern layer unit that contain polymethyl methacrylate microballoon scattering particles.For the construction profile of miniature spherical scattering particles microstructure scattering space pattern layer unit, in the time that scattering particles particle diameter is greater than adhesive glue thickness, presenting as Figure 14 is the construction profile of miniature spherical scattering particles microstructure scattering space pattern layer unit; In the time that scattering particles particle diameter is less than adhesive glue thickness, presenting as Figure 15 is the construction profile of miniature spherical overlapping scattering particles microstructure scattering space pattern layer unit; In the time that scattering particles particle diameter is less than adhesive glue thickness, when adhesive glue thickness thin edge thick middle, presenting as Figure 16 is the construction profile of spherical overlapping scattering particles microstructure scattering space pattern layer unit.Figure 20 adopts the construction profile of the ink site that light guide ink obtains through screen printing technique for contrasting with structure of the present invention at present.Figure 27 is the microstructure scattering space pattern layer unit photo in kind that adopts similar Figure 16 construction profile of the technology of the present invention method making.
The part of Reference numeral 15 indications of Figure 22 is side structure parts of the cellular energy-efficient LCD TV backlight module of 32 inch, before this light guide plate light inlet side end face, LED light source 9 is set, reflectance coating 11 is set below light guide plate baseplane 3, brightness enhancement film 12 and diffusion barrier 13 are set on light guide plate upper surface 4.
The part of Reference numeral 16 indications of Figure 22 is side structure schematic diagram of the cellular energy-efficient liquid crystal module of 32 inch, is to mix liquid crystal panel above at backlight module 15.In the outer preparation television frame of this liquid crystal module 16 and control system and program, thereby make the energy-conservation LCD TV of 32 inch honeycomb.
With reference to Figure 21, the manufacture method of above light guide plate is as follows:
1, provide by 32 inch requirements and cut polished water white transparency substrate, the plate substrate 1(of the thick 32 inch transparent methyl-prop diluted acid formicester of size of 3mm that reflectance coating is posted in its all the other 3 side end faces 5 except a side minor face light inlet side end face 2 is as Fig. 1).
2, in advance by design by light uniformity coefficient if Fig. 5 is with the pattern of adhesive gradually increasing away from the circular scattering unit figure in light inlet side end face 2, through photosensitive facture screen printing screens.
3, adopt screen process press, the transparent resin type adhesive glue of ultraviolet curing is scraped and on the baseplane 3 of transparency carrier, obtain the transparency carrier that contains bonding glue-line as Fig. 9.
4, utilize gravity to plant pearl technical equipment, the transparent polymethyl methacrylate microballoon 8 of 60 microns of refractive indexes 1.49 is planted and adhered in water white transparency adhesive glue patterned layer 7, solidify through ultraviolet curing machine, make the energy-efficient liquid crystal television light conducting plate of the cellular microstructure of 32 inch as Figure 10.
Embodiment 2, with reference to Figure 23,11,12,17,18,19,20,3,21,27,42 inch light guide plate and LCD TV thereof
Figure 11 is the side structure schematic diagram of the cellular energy-efficient microstructure light guide plate of 42 inch LCD TV, comprise the plate substrate 1 of water white transparency methyl-prop diluted acid formicester, at least one injects inner light inlet side end face 2 for receiving light, relative with light inlet side end face, all the other subsides of intersecting scribble the reflection side end face 5 of reflectance coating, and the light crossing with it from inside penetrate go out optical plane 4 and the relative baseplane with scattering micro structured pattern 3 forms with going out optical plane 4, wherein the microstructure scattering pattern on baseplane 3 be by have in substrate base flat coating one deck as shown in Figure 5 distribution patterns for regulating the curing colourless transparent resin type adhesive glue unit (as Figure 12) of tool multiple circular infrared heats at regular intervals of overall light brightness and uniformity coefficient, and along the direction away from light inlet side end face 2, this adhesive glue unit figure (as Figure 12) is ascending, by the curing colourless transparent resin type adhesive glue patterned layer 7 of infrared heat of dredging close order array distribution and forming, and in this adhesive glue patterned layer 7, plant that to be stained with 80 microns of refractive indexes of heat be 1.49 the micro-cone particle 8 of transparent poly-methyl-prop diluted acid formicester and the microstructure scattering space pattern layer that obtains, make lip-deep every the transparent poly-methyl-prop diluted acid formicester cone 8 of this adhesive glue space pattern layer all only have cone to go to the bottom to be partially embedded in water white transparency adhesive glue patterned layer 7 to be bonded together with transparency carrier 1 securely, all the other tips are most of exposed outside water white transparency adhesive glue patterned layer 7.Figure 12 is the structural plan figure that contains the circular microstructure scattering space pattern layer unit that gathers the micro-cone scattering particles of methyl-prop diluted acid formicester.For the construction profile of miniature circular cone scattering particles microstructure scattering space pattern layer unit, in the time that scattering particles particle diameter is greater than adhesive glue thickness, presenting Figure 17 is the construction profile of coniform scattering particles microstructure scattering space pattern layer unit; In the time that scattering particles particle diameter is less than adhesive glue thickness, presenting Figure 19 is the construction profile of coniform overlapping scattering particles microstructure scattering space pattern layer unit.Figure 20 adopts the construction profile of the ink site that light guide ink obtains through screen printing technique for contrasting with structure of the present invention at present.
The part of Reference numeral 15 indications of Figure 23 is side structure schematic diagram of the cellular energy-efficient LCD TV backlight module of 42 inch, before this light guide plate light inlet side end face, LED light source 9 is set, reflectance coating 11 is set below light guide plate baseplane 3, brightness enhancement film 12 and diffusion barrier 13 are set on light guide plate upper surface 4.
The part of Reference numeral 16 indications of Figure 23 is side structure schematic diagram of the cellular energy-efficient liquid crystal module of 42 inch, is to mix liquid crystal panel above at backlight module 15.In the outer preparation television frame of this liquid crystal module 16 and control system and program, thereby make the energy-conservation LCD TV of 42 inch honeycomb.
With reference to Figure 21, the manufacture method of above light guide plate is as follows:
1, provide by 42 inch requirements and cut polished water white transparency substrate, the thick 42 inch size surfaces of 3mm that reflectance coating is posted in its all the other 3 side end faces 5 except a side minor face light inlet side end face 2 have perpendicular to the transparent methyl-prop diluted acid of the micro-semicolumn prism in light inlet side end face 2 formicester substrate 1(as Fig. 3).
2, in advance by design by light uniformity coefficient if Fig. 5 is with the pattern of adhesive gradually increasing away from the circular scattering unit figure in light inlet side end face 2, through photosensitive facture screen printing screens.
3, adopt screen process press, the transparent adhesive glue that infrared heat is solidified scrapes and on the baseplane 3 of transparency carrier, obtains the transparent poly-methyl-prop diluted acid formicester substrate that contains infrared heat curing transparent adhesive glue patterned layer as Fig. 9.
4, utilize high-pressure electrostatic to plant pearl technology and equipment, the transparent poly-methyl-prop diluted acid formicester miniature circular cone particle 8 of 80 microns is planted and adhered on transparency carrier baseplane 3, solidify machine through infrared heat and solidify, make the energy-efficient liquid crystal television light conducting plate of the cellular microstructure of 42 inch as Figure 11.
Embodiment 3: with reference to Figure 24,2,13,14,15,16,20,21,27,14 inch light guide plate and notebook computers thereof
Figure 24 adopts 14 inch water white transparency PC wedge-shaped substrate 1(of full electric injection molding machine injection mo(u)lding as Fig. 2) the side structure schematic diagram of the cellular energy-efficient microstructure light guide plate of notebook computer, this light guide plate comprises water white transparency wedge shape PC substrate 1, at least one injects inner light inlet side end face 2 for receiving light, relative with light inlet side end face, all the other subsides of intersecting scribble the reflection side end face 5 of reflectance coating, and the light crossing with it from inside penetrate go out optical plane 4 and the relative baseplane with scattering micro structured pattern 3 forms with going out optical plane 4, wherein the microstructure scattering space pattern layer on baseplane 3 is by there is one deck multiple for regulating the colourless transparent resin type adhesive glue unit (as Figure 13) of tool multiple square ultraviolet curings at regular intervals of overall light brightness and uniformity coefficient in substrate base flat coating, and along the direction away from light inlet side end face 2, this square adhesive glue patterned layer unit figure (as Figure 13) is ascending, by the colourless transparent resin type adhesive glue patterned layer 7 of dredging the ultraviolet curing that close order array distribution forms, and in this adhesive glue patterned layer 7, plant the microstructure scattering space pattern layer that is stained with the globular glass microballon 8 of 50 microns of refractive indexes 1.93 and obtain, the lip-deep clear glass microballon 8 of adhesive glue patterned layer is all only partially embedded in water white transparency adhesive glue patterned layer 7 to be bonded together with transparency carrier 1 securely, remainder is exposed outside water white transparency adhesive glue patterned layer 7.
Figure 13 is the planimetric map of the square microstructure scattering space pattern layer unit that contain glass microballoon scattering particles.For the construction profile of glass microballoon scattering particles microstructure scattering space pattern layer unit, in the time that glass microballoon scattering particles particle diameter is greater than adhesive glue thickness, presenting as Figure 14 is the construction profile of miniature spherical scattering particles microstructure scattering space pattern layer unit; In the time that glass microballoon scattering particles particle diameter is less than adhesive glue thickness, presenting as Figure 15 is the construction profile of the overlapping scattering particles microstructure of glass microballoon scattering space pattern layer unit; In the time that glass microballoon scattering particles particle diameter is less than adhesive glue thickness, when adhesive glue thickness thin edge thick middle, presenting as Figure 16 is the construction profile of the micro-overlapping scattering particles microstructure scattering space pattern layer of glass unit; Figure 20 adopts the construction profile of the ink site that light guide ink obtains through screen printing technique for contrasting with structure of the present invention at present; Figure 27 is the microstructure scattering unit photo in kind that adopts similar Figure 16 construction profile of the technology of the present invention method making.
The part of Reference numeral 15 indications in Figure 24 is side structure schematic diagram of the cellular energy-efficient notebook computer backlight module of 14 inch, before this light guide plate light inlet side end face, LED light source 9 is set, reflectance coating 11 is set below light guide plate baseplane 3, brightness enhancement film 12 and diffusion barrier 13 are set on light guide plate upper surface 4.
The part of Reference numeral 16 indications in Figure 24 is side structure schematic diagram of the cellular energy-efficient notebook computer liquid crystal module of 14 inch, is to mix liquid crystal panel above at this backlight module 15.In outer other hardware of preparation notebook computer of this liquid crystal module 16 and control system, thereby make the energy-efficient notebook computer of 14 inch.
With reference to Figure 21, the manufacture method of above light guide plate is as follows:
1, provide 14 inch injection mo(u)lding wedge shape transparent PC material substrate.(as Fig. 2)
2, in advance by design by light uniformity coefficient with away from long webbing light inlet side end face 2, the adhesive glue pattern that square scattering unit figure increases gradually, makes hollow out steel version through laser engraving.
3, adopt screen process press, the transparent adhesive glue of ultraviolet curing is scraped and on the baseplane 3 of transparency carrier, obtain the transparency carrier that contains adhesive glue patterned layer.
4, utilize gravity to plant pearl technical equipment, the globular glass microballon 8 of 50 microns of refractive indexes 1.93 of footpath grain is planted and adhered on transparent wedge-shaped substrate baseplane 3, solidify through ultraviolet curing machine, make the energy-efficient wedge shape notebook computer of the cellular microstructure of 14 inch light guide plate.
Embodiment 4: double-side micro structure light guide plate and LCD TV
As Figure 25, the present embodiment difference from Example 1 be going out on optical plane of the upper surface of this transparency carrier arrange with substrate base plane on the microstructure scattering space pattern layer of same structure.
Embodiment 5: double-deck microstructure light guide plate and advertisement LCD TV
As Figure 26, the present embodiment is by two overlapping the forming of one side microstructure light guide plate described in double-side micro structure light guide plate and an embodiment 1 described in an embodiment 4.
Embodiment 6: with reference to Figure 21,30 × 120cm light guide plate and planar lamp thereof.
1, adopt that to cut the thick 30 × 120cm of the 4mm that posts reflectance coating in polished all the other 3 side end faces 5 except a side minor face light inlet side end face 2 size upper surface be micro-prism water white transparency methyl-prop plate substrate of diluted acid formicester (as Fig. 4).
2, in advance by the pattern of adhesive layers with gradually increase array arrangement composition away from light inlet side end face 2 circular cell figures as multiple in Fig. 5 that design by light uniformity coefficient, through photosensitive facture screen printing screens.
3, adopt screen process press, infrared heat curing transparent adhesive glue is scraped on the baseplane 3 of transparency carrier and obtain as the transparency carrier that contains bonding glue-line of Fig. 9.
4, utilize gravity to plant pearl technology and equipment, the globular glass microballon 8 that is 1.93 by 150 microns of refractive indexes is planted and is adhered on glass substrate baseplane 3, solidifies through infrared ray cured machine, makes the energy-efficient light guide plate of the cellular microstructure of 30 × 120cm.
5, in the energy-efficient light guide plate of the cellular microstructure of 30 × 120cm, load onto planar lamp framework and power supply, just make energy-efficient planar lamp.
Embodiment 7: Luminous keyboard of comptuer light guide plate
As Fig. 7, the present embodiment and embodiment 1 light guide plate difference are except size, and the pattern of adhesive layer of this transparency carrier is if Fig. 7 is by position of computer keyboard block design, and all the other are identical with embodiment 1.
Embodiment 8: with reference to Fig. 8,21,100 × 100cm advertisement and identifier light guide plate
1, adopt and cut the thick 100 × 100cm size of the 4mm 1 transparent ultra-clear glasses substrate Fig. 1 that posts reflectance coating in polished all the other 2 side end faces 5 except light inlet side end face, the long limit of two sides 2.
2, the computer lettering film by desired hollow out advertising design is sticked on to going out on optical plane of transparency carrier.
3, adopt air compressor to utilize spray gun natural drying transparent adhesive glue to be sprayed to the going out on optical plane of transparency carrier that is pasted with computer lettering film.
3, adopt pressurized air to utilize spray gun that the glass microsphere particle of 1.93 refractive indexes of 120 microns 8 spray is planted and adhered on transparency carrier baseplane 3, after it is natural drying, uncover computer lettering film, make the energy-efficient advertisement and identifier light guide plate of the cellular microstructure of 100 × 100cm.
Embodiment 9:7 inch panel computer light guide plate
Figure 10 is the side structure schematic diagram of the cellular energy-efficient microstructure light guide plate of panel computer of 7 inch thickness 0.8mm, light guide plate comprises that water white transparency gathers the plate substrate 1 of methyl-prop diluted acid formicester, at least one injects inner light inlet side end face 2 for receiving light, relative with light inlet side end face, all the other subsides of intersecting scribble the reflection side end face 5 of reflectance coating, and the light crossing with it from inside penetrate go out optical plane 4 and the relative baseplane with scattering micro structured pattern 3 forms with going out optical plane 4, wherein the microstructure scattering space pattern layer on baseplane 3 be by substrate base plane, be coated with one deck as shown in Figure 5 distribution patterns for regulating the colourless transparent resin type adhesive glue unit (as Figure 12) of tool multiple circular ultraviolet curings at regular intervals of overall light brightness and uniformity coefficient, and along the direction away from light inlet side end face 2, this adhesive glue unit figure (as Figure 12) is ascending, by the colourless transparent resin type adhesive glue patterned layer 7 of dredging the ultraviolet curing that close order array distribution forms, and in this adhesive glue patterned layer 7, plant the microstructure scattering space pattern layer that is stained with the globular glass microballon 8 of 75 microns of refractive indexes 1.93 and obtain, the lip-deep transparent spherical glass microballoon 8 of adhesive glue patterned layer is all only partially embedded in water white transparency adhesive glue patterned layer 7 to be bonded together with transparency carrier 1 securely, remainder is exposed outside water white transparency adhesive glue patterned layer 7.
Figure 12 is the structural plan figure of the circular microstructure scattering space pattern layer unit that contain glass microballoon scattering particles.For the construction profile of miniature spherical scattering particles microstructure scattering space pattern layer unit, in the time that glass microballoon scattering particles particle diameter is greater than adhesive glue thickness, presenting as Figure 14 is the construction profile of miniature spherical scattering particles microstructure scattering space pattern layer unit; In the time that glass microballoon scattering particles particle diameter is less than adhesive glue thickness, presenting as Figure 15 is the construction profile of miniature spherical overlapping scattering particles microstructure scattering space pattern layer unit; In the time that glass microballoon scattering particles particle diameter is less than adhesive glue thickness, when adhesive glue thickness thin edge thick middle, presenting as Figure 16 is the construction profile of spherical overlapping scattering particles microstructure scattering space pattern layer unit; Figure 20 adopts the construction profile of the ink site that light guide ink obtains through screen printing technique for contrasting with structure of the present invention at present; Figure 27 is the microstructure scattering unit photo in kind that adopts similar Figure 16 construction profile of the technology of the present invention method making.
The part of Reference numeral 15 indications of Figure 22 is side structure parts of the cellular energy-efficient panel computer backlight module of 7 inch, before this light guide plate light inlet side end face, LED light source 9 is set, reflectance coating 11 is set below light guide plate baseplane 3, brightness enhancement film 12 and diffusion barrier 13 are set on light guide plate upper surface 4.
The part of Reference numeral 16 indications of Figure 22 is side structure schematic diagram of the cellular energy-efficient liquid crystal module of 7 inch, is to mix liquid crystal panel above at backlight module 15.In this liquid crystal module 16 configuration device and control system and program behind, thereby make the energy-conservation panel computer of 7 inch honeycomb.
With reference to Figure 21, the manufacture method of above light guide plate is as follows:
1, provide by 7 inch requirements and cut polished water white transparency substrate, the plate substrate 1(of the thick 7 inch transparent methyl-prop diluted acid formicester of size of 0.8mm that reflectance coating is posted in its all the other 3 side end faces 5 except a side minor face light inlet side end face 2 is as Fig. 1).
2, in advance by design by light uniformity coefficient if Fig. 5 is with the pattern of adhesive gradually increasing away from the circular scattering unit figure in light inlet side end face 2, make hollow out steel version through laser engraving.
3, adopt screen process press, the transparent resin type adhesive glue of ultraviolet curing is scraped and on the baseplane 3 of transparency carrier, obtain the transparency carrier that contains bonding glue-line as Fig. 9.
4, utilize gravity to plant pearl technical equipment, the globular glass microballon 8 of 75 microns of refractive indexes 1.93 is planted and adhered in water white transparency adhesive glue patterned layer 7, solidify through ultraviolet curing machine, make the energy-efficient panel computer light guide plate of the cellular microstructure of 7 inch as Figure 10.
Embodiment 10: smart mobile phone light guide plate
The present embodiment and embodiment 3 light guide plate differences are plate transparency carriers of size 4.0 inch thickness 0.8mm, in this method for making, be by make bat printing steel version adopt pad printer by transparent adhesive glue bat printing to the baseplane of transparency carrier.
Embodiment 11: with reference to Figure 21,6,150 × 250cn large scale advertising lamp box light guide plate
1, adopt and cut the thick 150 × 250cm size plate substrate of transparent methyl-prop diluted acid formicester of 6mm (Fig. 1) that reflectance coating is posted in polished all the other 2 side end faces 5 except light inlet side end face, the long limit of two sides 2.
2, by by optical design good as Fig. 6 with the pattern of adhesive gradually increasing away from the circular scattering unit figure in light inlet side end face 2, adopt computerized spraying drawing machine with single head or bull air brushing, transparent ultraviolet ray adhesive glue is sprayed on transparency carrier baseplane.
3, utilize gravity to plant pearl technology relevant device, the transparent poly-methyl-prop diluted acid formicester microsphere particle 8 of 120 microns is planted and adhered on transparency carrier baseplane 3, dry through ultraviolet photo-curing machine, make the energy-efficient advertising lamp box light guide plate of the cellular microstructure of large scale.
4, in this light guide plate, become book type advertising lamp box by frame up frame and semi-transparent advertisement.
Embodiment 12: the circular light guide plate of diameter 240mm and circular planar lamp thereof
The present embodiment and embodiment 6 light guide plate differences are the circular transparency carriers of diameter 240mm.
Embodiment 13: with reference to Figure 28,5,12,14,15,16,20,1,9,10,21,27,46 inch liquid crystal television light conducting plate and LCD TV thereof
The present embodiment and embodiment 1 light guide plate difference are size 46 inch, and microstructure scattering space pattern layer is arranged on going out on optical plane of water white transparency substrate, and its method that microstructure scattering pattern is set is identical with embodiment 1.

Claims (20)

1. a light guide plate, it comprises water white transparency substrate, described substrate has for receiving light injects inner light inlet side end face, what light penetrated from inside goes out optical plane, the baseplane relative with going out optical plane, it is characterized in that: on the baseplane of described water white transparency substrate or/and go out water white transparency adhesive glue patterned layer is set on optical plane, and in this adhesive glue patterned layer, plant the several miniature scattering particles of adhesion and obtain microstructure scattering space pattern layer, plant all or part of exposed protrusion of sticky miniature scattering particles on adhesive glue patterned layer surface, exposed protrusion bonded glue within a part for the lip-deep miniature scattering particles of adhesive glue patterned layer is embedded into water white transparency adhesive glue patterned layer is bonding securely, the exposed protrusion of remainder is outside water white transparency adhesive glue patterned layer.
2. light guide plate according to claim 1, is characterized in that: described water white transparency adhesive glue is ultraviolet photo-curing colourless transparent resin type adhesive glue; Or infrared heat solidifies colourless transparent resin type adhesive glue; Or natural drying curing colourless transparent resin type adhesive glue one wherein.
3. light guide plate according to claim 1, is characterized in that: described microstructure scattering space pattern layer is made up of the multiple microstructure scattering space pattern layer unit that are stained with several miniature scattering particles of planting at regular intervals of the tool for regulating overall light brightness and uniformity coefficient; Or described microstructure scattering space pattern layer is for providing brightness to block or picture and text, plant at its corresponding block or picture and text position the block graphics of stereo microstructure fringe area or the picture and text composition that are stained with several miniature scattering particles.
4. light guide plate according to claim 3, is characterized in that: described multiple microstructure scattering space pattern layer unit that are stained with several miniature scattering particles of planting are little and sparse near light inlet side end face place, large and intensive away from light inlet side end face place.
5. light guide plate according to claim 1, it is characterized in that: its monolateral light inlet side end face that arranges, described microstructure scattering space pattern layer is made up of the multiple microstructure scattering space pattern layer unit that are stained with several miniature scattering particles of planting at regular intervals of the tool for regulating overall light brightness and uniformity coefficient, and along the direction away from light inlet side end face, microstructure scattering space pattern layer unit be ascending, by dredging close order arrayed, and each microstructure scattering space pattern layer unit planted and is stained with several microstructure scattering particles.
6. light guide plate according to claim 1, it is characterized in that: it comprises the light inlet side end face of pair of opposing, described microstructure scattering space pattern layer is made up of the multiple microstructure scattering space pattern layer unit that are stained with several miniature scattering particles of planting at regular intervals of the tool for regulating overall light brightness and uniformity coefficient, and from two relative light inlet side end faces to third side to, microstructure scattering space pattern layer unit is ascending, by dredging close order arrayed, and each microstructure scattering space pattern layer unit planted and is stained with several microstructure scattering particles.
7. according to the light guide plate described in claim 3,4,5 or 6, it is characterized in that: the appearance profile of described microstructure scattering space pattern layer unit is circular or square.
8. according to the light guide plate described in claim 1,3,4,5 or 6, it is characterized in that: described miniature scattering particles are water white particles; Or the particle of process surface coating processing; Or the mixing of two kinds above.
9. according to the light guide plate described in claim 1,3,4,5 or 6, it is characterized in that: the described large small particle diameter of miniature scattering particles is between 5 microns to 800 microns.
10. according to the light guide plate described in claim 1,3,4,5 or 6, it is characterized in that: the refractive index of described miniature scattering particles is between 1.1 to 2.8.
11. according to the light guide plate described in claim 1,3,4,5 or 6, it is characterized in that: the material of described miniature scattering particles is one or more the mixing in polymethyl methacrylate, glass, polycarbonate, MS resin, polyethylene terephthalate, tygon, Polyvinylchloride, polyacrylonitrile, polystyrene, nylon or melamine.
12. according to the light guide plate described in claim 1,3,4,5 or 6, it is characterized in that: the outer shape of described miniature scattering particles is particles of spheroid or cone.
13. according to the light guide plate described in claim 1,3,4,5 or 6, it is characterized in that: described miniature scattering particles are water white, and large small particle diameter is 20 microns to 200 microns, and refractive index is 1.93 globular glass microballon.
14. according to the light guide plate described in claim 1,3,4,5 or 6, it is characterized in that: described miniature scattering particles are water white, and large small particle diameter is 20 microns to 200 microns, and refractive index is 1.49 polymethyl methacrylate microballoon.
15. 1 kinds of combination light guide plate, is characterized in that having more than two or two being spatially formed by stacking to any one light guide plate of claim 14 by claim 1.
16. 1 kinds of planar emission apparatus, comprise the light source before the light inlet side end face that is arranged on described light guide plate, it is characterized in that: described planar emission apparatus includes the light guide plate described in claim 1 to 15 any one.
17. 1 kinds of liquid crystal indicators, comprise the display panels before optical plane or planar emission apparatus that goes out that is arranged on light guide plate, it is characterized in that: described liquid crystal indicator includes the light guide plate described in claim 1 to 15 any one; Or planar emission apparatus described in claim 16.
18. 1 kinds of liquid crystal display terminal equipment, comprise the device and equipment and the control system that are arranged on outside light guide plate, planar emission apparatus or liquid crystal indicator, it is characterized in that: described liquid crystal display terminal equipment includes the light guide plate described in any one in claim 1 to 15; Or planar emission apparatus described in claim 16; Or wherein a kind of in liquid crystal indicator described in claim 17.
Manufacture the manufacture method of light guide plate as claimed in claim 1, it is characterized in that it comprises the following steps for 19. 1 kinds:
(1), provide water white transparency substrate;
(2), providing water white transparency adhesive glue, this water white transparency adhesive glue is ultraviolet photo-curing colourless transparent resin type adhesive glue; Or infrared heat solidifies colourless transparent resin type adhesive glue; Or natural drying curing colourless transparent resin type adhesive glue one wherein;
(3), adopt the method applying above-mentioned water white transparency adhesive glue to be coated to by the good pattern of optical design in advance on the baseplane of water white transparency base material or/and go out on optical plane, form one deck water white transparency adhesive glue patterned layer;
(4), provide described miniature scattering particles, sticky method is planted in employing, the above-mentioned miniature scattering particles that provide are planted on the water white transparency adhesive glue pattern that adheres to transparency carrier, sticky method is planted in this employing, be adopt HV generator produce high-pressure electrostatic effect under discontinuity suction and repulsion miniature scattering particles are planted equably and are adhered in water white transparency adhesive glue patterned layer; Or utilize the impulse force of freely falling body and gravity that miniature scattering particles are planted equably and adhered in water white transparency adhesive glue patterned layer; Or adopt air compressor to utilize compressed-air actuated spray power that miniature scattering particles are planted equably and adhered in water white transparency adhesive glue patterned layer;
(5) the water white transparency substrate that, is stained with above-mentioned miniature scattering particles to planting is cured processing, water white transparency adhesive glue is solidified, thereby make described energy-efficient microstructure light guide plate, this solidifies the method for processing is that the employing ultraviolet photo-curing machine of use ultraviolet photo-curing water white transparency adhesive glue is cured; To using the curing drying tunnel of employing infrared heat or the baking oven that infrared heat solidifies water white transparency adhesive glue to be cured; To using the air-dry dry or natural drying method of the employing fermented soya beans, salted or other wise of natural drying curing water white transparency adhesive glue to be cured.
20. manufacture methods according to claim 19, it is characterized in that: the painting method that wherein step (3) adopts is the hollow out steel version of utilizing screen printing plate, laser engraving or the chemical etching of the design producing designing, utilize screen process press employing to scrape technology transparent adhesive glue is coated in water white substrate base plane or/and go out on optical plane; Or the painting method that wherein step (3) adopts is to utilize the pattern computer output designing to adopt single spraying head or many shower nozzles of digital ink-jet printer that transparent adhesive glue is coated in water white substrate base plane or/and go out on optical plane; Or, the painting method that step (3) adopts is to utilize the bat printing steel version of the design producing that designs to adopt transfer-print technology that transparent adhesive glue is coated in water white substrate base plane or/and go out on optical plane: or the painting method that step (3) adopts is to utilize the design producing printing gravure designing to adopt intaglio press or intaglio plate reversal printing machine that transparent adhesive glue is coated in water white substrate base plane or/and go out on optical plane; Or the painting method that step (3) adopts is to utilize the pierced pattern matrix of the design producing designing to adopt the similar technology of spraying paint of pressurized air that transparent adhesive glue is coated in water white substrate base plane or/and go out on optical plane.
CN201310459762.3A 2013-09-29 2013-09-29 Light guide plate, planar light emitting device, liquid crystal display device, liquid crystal display terminal equipment and manufacturing method of light guide plate Expired - Fee Related CN103499853B (en)

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