WO2015043490A1

WO2015043490A1 - Light guide plate, planar light-emission apparatus, liquid crystal display apparatus, liquid crystal display terminal device, and method for manufacturing light guide plate

Info

Publication number: WO2015043490A1
Application number: PCT/CN2014/087451
Authority: WO
Inventors: 唐龙
Original assignee: 杭州瑞辉光电科技有限公司
Priority date: 2013-09-29
Filing date: 2014-09-25
Publication date: 2015-04-02
Also published as: CN103499853B; TW201512739A; CN103499853A

Abstract

A light guide plate and a planar light-emission apparatus having the light guide plate, a liquid crystal display apparatus, a liquid crystal display terminal device, and a method for manufacturing a light guide plate. A scattering pattern on a bottom surface (3) of the light guide plate has a colorless transparent adhesive pattern layer (7) provided on a plane of a substrate (1), multiple miniature scattering particles (8) are planted and bonded on the adhesive pattern layer (7) to obtain a three-dimensional microstructured scattering pattern layer (6), all or a part of the planted and bonded miniature scattering particles (8) protrude from a surface of the adhesive pattern layer (7), a part of the miniature scattering particles (8) exposed and protruding from the surface of the adhesive pattern layer (7) are inserted in the colorless transparent adhesive pattern layer (7) to be securely bonded by using an adhesive, the rest part of the miniature scattering particles (8) are exposed and protrude from the colorless transparent adhesive pattern layer (7). A planar light-emission apparatus in which such a light guide plate is used has an increase rate of brightness exceeding 20%. By means of the manufacturing method, light guide plates in large, medium, and small sizes can be manufactured with high quality, thereby fully achieving an increase of brightness for a light guide plate.

Description

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

Technical field

The present invention relates to a light guide plate, a planar light emitting device, a liquid crystal display device, and a liquid crystal display terminal device, and to a method of manufacturing the light guide plate.

Background technique

Generally, a liquid crystal display device includes a liquid crystal display panel that displays an image and a planar light emitting device that supplies light to the liquid crystal display panel. The liquid crystal display panel includes two transparent substrates and a liquid crystal layer disposed between the two substrates to display an image in response to a change in alignment of liquid crystal molecules of the liquid crystal layer caused by an electrical signal.

The planar light-emitting device is divided into a direct-type planar light-emitting device and an edge-light planar light-emitting device according to the light source setting position.

The direct type planar light emitting device has a plurality of light sources located in a region overlapping the liquid crystal panel. Then, since it is required to have a certain uniform light distance between the liquid crystal panel and the light source, it is thick, and there is a light-area plate with a large light loss, so that the light source is uniformly supplied to the liquid crystal panel, thereby causing the thickness and cost of the liquid crystal display device. , power consumption, failure rate increased.

The edge-light type planar light-emitting device is disposed on the outer side of the liquid crystal panel and is not in the same plane but is stacked on the liquid crystal panel, and uses a light guide plate having a certain thickness to uniformly supply light from the outside of the region to the liquid crystal panel. . Although some of the light is lost due to the transmission and conversion of light emitted from the light source through the light guide plate. However, with the development of liquid crystal display devices toward large size, ultra-thin, low power consumption, high brightness, and low cost, the edge-lit planar light-emitting device has ultra-thin aesthetics, good uniformity, low cost, and failure rate. The low-end advantages, so the edge-lit planar light-emitting device is the mainstream of future liquid crystal display backlights.

According to the data of the Taiwan Industrial Technology Research Institute, the loss in the light transmission of the edge-lit planar light-emitting device is also large. It is assumed that the light emitted by the light source is 100%, and only about 60% of the light is passed through the light guide plate of the edge-light planar light-emitting device. Come out into the optical film and LCD panel. Since the light guide plate converts the light received from the light incident side end surface into a uniform planar light emission of a large area and emits it toward one method, it can be seen that it is difficult to realize the function, so the light guide plate is a planar light emitting device. The important core components, which also lead to loss of light transmission as much as 40%, so how to reduce the loss of light transmission inside the light guide plate conversion is an important research object of the global optoelectronic technicians.

a light guide plate comprising a colorless transparent substrate for receiving light entering the inner light-incident end surface, opposite to the light-incident end surface, and the remaining reflective end surface coated with the reflective film, and intersecting the light from the inside The emitted light exiting plane is formed by a bottom plane having a scattering pattern opposite to the light exiting plane.

At present, there are two main types of light guide plates in terms of size, structure and manufacturing process: one is a micro-structured bottom planar light guide plate produced by injection molding technology for small size; the other is for large size. The light-guiding ink performs a screen-printing scattering pattern on the bottom plane with a light-efficient printing type light guide plate.

In the small-sized field, with the development of large-size, lightweight, ultra-thin, high-light efficiency and liquid crystal display technology, the liquid crystal panels of notebook computers, tablet computers, and smart phones are inevitably required to be lighter and thinner. From the original 2.00MM to the development below 0.8MM, due to the thinning of thickness, this will cause some problems in the formation of the light guide plate. If it is desired to use a traditional injection molding technology to complete a thin light guide plate, then it is necessary to use a high-speed injection molding machine on the equipment. Of course, the injection molding currently used can also be produced, but it will face flatness and Mass production problems. However, when the rate of fire is too high, problems such as residual stress and molecular orientation may occur due to excessive pressure of the holding pressure, which may cause warping deformation. Therefore, for the light guide plate industry, it is constantly pursuing newer technologies to produce low-cost thin light guide plates.

In the field of large and medium size, although there are many light-structured micro-structured light guide plates in the patent database, it is impossible to solve the problem when the mass production is realized, and some are made by laser technology or computer engraving technology. Not only is it slow, but the light efficiency and uniformity are not ideal, and it can't meet the requirements of modern LCD backlight and flat panel lighting. Therefore, a method of performing a screen printing scattering pattern on the bottom plane of the light guide plate by using a light guiding ink has been used so far. In the patent database, there is an announcement document of application No. 200710163134.5, which discloses a method of adding a diameter of 4um-6um of acrylic beads to a light guiding ink; and patent claims of patent numbers 02149645.5, 02151636.7, 02250620.9, respectively The light ink is added with scattering particles such as SIO2 and PMMA. Since these particles are added in the light guiding ink, and the acrylic beads, PMMA and ink are similar acrylic resins, they are directly dissolved, like SIO2 itself is also used in the light guiding ink. A raw material is not necessary to add it, and there is no improvement in light efficiency. There is also a patent publication No. 02152108.5, in which 10um-50um organic filler pellets are uniformly applied to the light-emitting plane of the light guide plate, and the water-like pressure like chloroform is generally used here. The gram adhesive, not the paste adhesive, is coated on the entire surface instead of being patterned, thus destroying the principle of total reflection of the light guide, so that light cannot be transmitted to the central area, and then their purpose of invention It is to replace the effect of the diffusion film to save the cost of the backlight module. The prior art screen printing light guide plate not only loses a large amount of light energy during the light transmission and conversion process, but also releases toxic gas during the production process to damage the health of the production staff, so it has been eliminated in the small size field, but the production Small-sized injection molding production processes cannot be realized on large-sized light guide plates. With the increasing size of LCD TVs, LCDs and flat-panel lighting devices, the responsibility for energy saving and emission reduction is becoming heavier, and the pressure on the large-scale high-efficiency energy-saving light guide plates Its manufacturing technology poses even more serious challenges.

In view of the above-mentioned difficulties in the field of large, medium and small size light guide plates, it is the current global LCD flat panel display field and photo The technical field in the field of ambiguity needs to be solved.

Summary of the invention

The first object of the present invention is to provide a new type of light guide plate which is more energy efficient, more environmentally friendly, and more ultra-thin, and can realize low-cost and rapid mass production regardless of size, medium and small size. To this end, the present invention adopts the following technical solutions:

A light guide plate comprising a colorless transparent substrate, the substrate having a light-incident end surface for receiving light into the interior, a light-emitting plane emitted by the light from the inside, and a bottom plane having a scattering pattern opposite to the light-emitting plane, The invention is characterized in that: a colorless transparent adhesive glue pattern layer is disposed on the bottom plane or/and the light exiting plane of the colorless transparent substrate, and a plurality of micro scattering particles are adhered on the adhesive glue pattern layer to obtain a microstructure scattering three-dimensional pattern. a layer, the implanted micro-scattering particles are all exposed or partially exposed on the surface of the adhesive pattern layer, and a part of the micro-scattering particles which are exposed on the surface of the adhesive-bonding pattern layer are embedded in the colorless transparent adhesive pattern. The layers are firmly bonded by the adhesive, and the remaining portions are exposed to the outside of the colorless transparent adhesive pattern layer.

The grafting means that the micro-scattering particles enter the colorless transparent adhesive pattern layer by an external force to partially or completely embed the scattering particles into the adhesive pattern layer.

The micro-scattering particles of the present invention are bonded together by a colorless transparent adhesive pattern layer and a transparent substrate, and the micro-scattering particles and the substrate may be in contact with each other or may be non-contact.

The colorless transparent substrate can be from 0.3 mm to 10 mm thick as needed; the material is in polymethyl methacrylate, polycarbonate, MS resin, polyethylene terephthalate, polystyrene, polyvinyl chloride , glass, ultra-white glass, polyethylene resin, amorphous polyolefin, ABS, PVC, PET, etc., soft or hard sheet; the structure is flat or wedge-shaped; the transparent substrate is smooth and flat on the light-emitting plane. It is also possible to have a microstrip-shaped semi-cylindrical array or a micro-bar-shaped triangular prism array microstructure of a colorless and transparent plate perpendicular to the light-incident end face.

The microstructured scattering three-dimensional pattern layer can be optically designed according to the needs of the product to be illuminated.

If applied to liquid crystal display backlights, flat panel illuminations, thin advertising light boxes, etc., the microstructured scattering three-dimensional pattern layer can be designed to have a plurality of implants with a certain spacing for adjusting overall light brightness and uniformity. The micro-structured scattering three-dimensional pattern layer unit array with a plurality of micro-scattering particles is distributed, and is small and sparse at the end face close to the light-incident side, and large and dense at the end face far from the light-incident side. And each of the microstructure scattering three-dimensional pattern layer unit is implanted with a plurality of microstructure scattering particles. The outline of the microstructure scattering three-dimensional pattern layer unit pattern may be a curved shape such as a circle, an ellipse or the like, or may be a polygon such as a rectangle, a square, or a hexagon.

If the block illumination applied to the illuminated keyboard, the illuminated dashboard, the advertising logo, etc. provides brightness, the microstructured scattering three-dimensional pattern layer can be designed to provide brightness to the block or image in its corresponding block. Or a graphic composition of a three-dimensional microstructure scattering block pattern or graphic with a plurality of micro-scattering particles.

The colorless transparent adhesive may be a colorless transparent resin type adhesive containing ultraviolet light absorber; or may be a heat curing colorless transparent resin type adhesive; or may be a natural dry curing colorless transparent resin type adhesive Glue, the main components widely used at present are resin materials such as polymethyl methacrylate (PMMA), cyclic olefin polymer (COP) or polycarbonate (PC).

The microstructured scattering particles are colorless, transparent particles.

When the particle size of the micro-scattering particles is smaller than the thickness of the adhesive, the scattering particles are naturally completely embedded in the adhesive layer during the grafting, and the scattering particles in the adhesive layer are not effective, but the overlapping is continued on the substrate. The scattering particles are adhered until the scattering particles on the surface of the transparent adhesive layer have the same effect of the same reflection, total reflection and refraction. When the particle size of the micro-scattering particles is twice the thickness of the adhesive, for the spherical micro-scattering particles, the maximum position of the cross-section is positively on the surface of the transparent adhesive, thereby propagating from the inside of the light guide plate into the scattering particles. The amount of light is more, and the effect is better; when the particle size of the micro-scattering particles is larger than the thickness of the adhesive, the lower half is embedded in the adhesive layer, and both have the same good effects as described above.

Thus, the micro-scattering particles typically have a particle size between 5 microns and 800 microns, preferably between 20 microns and 200 microns.

The transparent micro-scattering particles have a refractive index between 1.1 and 2.8.

The transparent micro scattering particle material is polymethyl methacrylate, glass, polycarbonate, MS resin, polyethylene terephthalate, polyethylene, polyvinyl chloride, polyacrylonitrile, polystyrene, nylon or melamine. Wait for one or more of these.

The shape of the transparent micro-scattering particles may be a curved body such as a cone or a sphere, a polyhedron such as a triangular pyramid or a polygonal pyramid, or an irregular polyhedron, or a mixture of several kinds.

The preferred embodiment of the micro-scattering particles is spherical glass microspheres having a particle diameter of 20 μm to 200 μm and a refractive index of 1.93; or a transparent polymethyl methacrylate microsphere having a particle diameter of 20 μm to 200 μm and a refractive index of 1.49.

Since the thickness of the coated colorless transparent adhesive pattern layer is generally between 10 micrometers and 80 micrometers, and the micro-scattering particle diameter in the preferred embodiment is from 20 micrometers to 200 micrometers, the scattering particles are grafted to the transparent adhesive layer. The depth in the glue is just about half, when the cross-sectional area of the surface of the scattering particles and the transparent adhesive is large, so that the amount of light that propagates from the inside of the light guide to the scattering particles is large, so that the light is incident. When the outer surface of the transparent particles (interfacing with the outside air) has more reflected light, total reflected light, and refracted light, the brightness of the light exiting plane is greatly improved.

On the micro-scattering particle material, the better the light transmittance, the smaller the loss of light propagation, and the higher the brightness of the light-emitting plane. Therefore, in many materials, it is also a polymethyl methacrylate or a cyclic olefin polymer material ( COP), polycarbonate (PC) and glass have relatively good light transmission. In the same material, the higher the refractive index, the better the transparency, and the brightness of the light-emitting plane is increased again. Therefore, the refractive index of the glass is relatively high at 1.93, and the refractive index of transparent polymethylmethacrylate is 1.49, which is also relatively high. .

The scattering particles may also be particles subjected to surface coating treatment, and the film may be a metal plating film such as a vacuum aluminized film. Such a scheme produces a mirror-like reflection when the light is transmitted through the light guide plate when it is incident on the inner surface of the coating film of the scattering particles (and the interface of the adhesive glue), not like the diffuse reflection of the screen printing light guiding ink. The light loss is small, so the light efficiency is high, and the mass production is simple and convenient, and the yield is high.

In addition, whether the microstructure-scattering three-dimensional pattern layer of the same structure is disposed on the bottom plane of the transparent substrate or/and the light-emitting plane has a better light efficiency effect.

A second object of the present invention is to provide a novel combined light guide plate using the above-described light guide plate, which not only has the advantages of the above light guide plate, but also further improves the utilization and brightness of light. To this end, the present invention adopts the following technical solutions:

A combined light guide plate having two or more light guide plates of any one of the above is spatially superposed.

A third object of the present invention is to provide a planar light-emitting device using the above-mentioned light guide plate. The planar light-emitting device can be any planar light-emitting device including the above-mentioned light guide plate, in addition to the liquid crystal backlight module and the flat panel illumination device. Such as flat-panel downlights, thin advertising light boxes, illuminated keyboards, illuminating instrumentation and illuminating signs and other high-efficiency products. To this end, the present invention adopts the following technical solutions:

A planar light-emitting device comprising a light source disposed in front of a light-incident end of the light guide plate, the planar light-emitting device comprising any one of the above-mentioned light guide plates or any combination light guide plate.

A fourth object of the present invention is to provide a liquid crystal display device using the above-described light guide plate, which can be a liquid crystal module or a liquid crystal display. To this end, the present invention adopts the following technical solutions:

A liquid crystal display device comprising a liquid crystal display panel disposed in front of a light-emitting plane of a light guide plate or a planar light-emitting device, the liquid crystal display device comprising any one of the above-mentioned light guide plates or any combination light guide plate or any plane Light emitting device.

A fifth object of the present invention is to provide a liquid crystal display terminal device using the above-mentioned light guide plate. The terminal device can be any device including a liquid crystal display device, such as a liquid crystal display, in addition to a computer, a mobile phone, or a television. High-efficiency energy-saving products such as advertising machines, display screens, electronic whiteboards, e-books, and liquid crystal instrumentation machinery and equipment. To this end, the present invention adopts the following technical solutions:

A liquid crystal display terminal device comprising a device device and a control system disposed outside a light guide plate, a planar light-emitting device or a liquid crystal display device, wherein the liquid crystal display terminal device comprises any one of the above-mentioned light guide plates or any combination light guide plate Or any planar light emitting device or any liquid crystal display device.

A sixth object of the present invention is to provide a method of manufacturing the above light guide plate, characterized in that it comprises the following steps:

(1) Providing a colorless transparent substrate.

(2) providing a colorless transparent adhesive, which is an ultraviolet light-curable colorless transparent resin type adhesive; or an infrared heat-curable colorless transparent resin type adhesive; or is naturally dried Curing colorless transparent resin type adhesive One of them.

(3) applying the above-mentioned colorless transparent adhesive glue to the bottom plane of the colorless transparent substrate or/and the light exiting surface in a pre-optically designed pattern by a coating method to form a colorless transparent adhesive. A layer of glued pattern. The coating method used is a screen printing plate, a laser engraving or a chemically etched hollow steel plate made by using a designed pattern, and the transparent adhesive is applied to the colorless and transparent plate by a screen printing machine. The bottom surface of the substrate or/and the light exiting plane; or, wherein the coating method employed in the step (3) is to use a designed pattern computer output to coat the transparent adhesive with a single nozzle or multiple nozzles of a digital inkjet printer. On the bottom surface of the colorless and transparent substrate or/and the light exiting plane; or, the coating method adopted in the step (3) is to apply the transparent adhesive to the pad printing plate prepared by using the designed pattern by using a pad printing technique. To the colorless transparent substrate bottom plane or/and the light exiting plane: or, the coating method adopted in the step (3) is to use the designed pattern to make the printing intaglio plate to be transparently bonded by a gravure printing machine or a gravure reverse printing machine. The glue is applied to the bottom surface of the colorless and transparent substrate or/and the light exiting plane; or, the coating method adopted in the step (3) is that the hollowed-out pattern die made by using the designed pattern is similar to the spray paint using compressed air. The technique applies a clear adhesive to the bottom surface of the colorless and transparent substrate or/and the light exiting plane.

(4) providing the micro-scattering particles, and implanting the micro-scattering particles provided above onto the colorless transparent adhesive glue pattern of the transparent substrate by means of a grafting method, wherein the method of implanting is high pressure The intermittent suction and repulsive force generated by the high-voltage static electricity generated by the electrostatic generator uniformly implants the micro-scattering particles onto the colorless transparent adhesive pattern layer; or, the fine scattering particles are evenly implanted by the free-falling force and gravity Adhesive to the colorless transparent adhesive pattern layer; or, using an air compressor, the micro-scattering particles are uniformly implanted onto the colorless transparent adhesive pattern layer by the spray force of the compressed air.

(5) curing a colorless transparent substrate to which the above-mentioned micro scattering particles are adhered, and curing the colorless transparent adhesive to obtain the high-efficiency and energy-saving microstructure light guide plate, and the curing treatment method is UV-curable colorless transparent adhesive is cured by UV curing machine; it is cured by infrared heat curing drying oven or oven using infrared heat curing colorless transparent adhesive; The adhesive is cured by a hurricane drying or natural drying method.

For small-sized light guide plates, they can be processed in a large size, and then laser or mechanically cut into small sizes to improve production efficiency.

For irregularly shaped scattering particles such as cones, high-pressure electrostatic viscosing techniques can be used for phyto-adhesive bonding, which results in a large gravitational or repulsive force at the end of the large volume of the scattering particles, so that the acceleration is fast and the first implantation is achieved. Such a light guide plate can exhibit a better light efficiency effect in the adhesive layer. For scattering particles with a regular shape like a sphere, a method of relying on gravity grafting can be used. Such equipment investment is less simple and simple, but when it is implanted, the scattering particles may roll out of the adhesive rubber unit due to the influence of external force. Affecting light efficiency effects and fastness, relatively high pressure static The method of electro-implantation technology produces light efficiency effects and fastness.

In the choice of colorless transparent adhesive, the colorless transparent resin type adhesive containing ultraviolet light absorber is preferred, because such adhesive is more environmentally friendly when light curing, no harmful gas release damages the production staff, and the curing speed The fast energy consumption is small, and the light efficiency effect of the produced light guide plate is the same.

In the selection of the main material and scattering particle material of the colorless transparent adhesive, the material of the transparent substrate is preferably the same, because the bonding strength between the same materials is the best.

Due to the technical effects of the present invention, the present invention has the following beneficial effects:

According to the optical principle and the light propagation route analysis, the prior art light guide plate diffuses reflection when the light propagating in the light guide plate hits the silk screen light guiding ink, and the technical solution adopted by the present invention is when the light guide plate propagates. Light, reflecting like a mirror when it touches a vacuum coated particle; or reflecting, totally reflecting, and refracting at the interface of a high transparent high refractive index micro-scattering particle similar to a micro lenslet to the outside air, thus light energy loss Small, thus greatly improving the utilization of the side light source, so as to achieve the purpose of high efficiency and energy saving.

For example, the 32-inch LCD TV light guide plate sample produced by this technology and the prior art LCD TV light guide plate sample are in the same backlight module with the same voltage and current, and the NO:2012 by the National Electronic Computer External Equipment Quality Supervision and Inspection Center. -3055 "Inspection Report" brightness increase rate reached 28.8%, which is unpredictable in the field, in general, it is difficult to increase 5%.

Backlight modules, liquid crystal display devices, liquid crystal televisions, computers, tablet computers, mobile phones, flat panel lighting fixtures, illuminated keyboards, illuminated instrument panels, thin advertising light boxes, and illuminated signages made using such high-efficiency energy-saving light guide plates can be efficiently realized. The purpose of energy saving.

Due to the use of the light guide plate manufacturing method of the present invention, the following beneficial technical effects are obtained:

In the case of microstructured light guide plates, the most common ones are injection molding using an all-electric injection molding machine, but the injection molding process technology cannot manufacture large-sized light guide plates at all, so high-efficiency microstructured light guide plates are Large size areas have been difficult to achieve. According to the light guide plate manufacturing method of the present invention, not only a high-efficiency and energy-saving large-sized microstructure light guide plate can be obtained, but also the brightness of the planar light-emitting device using such a light guide plate is remarkably improved, and the investment is low and the production speed is fast. Moreover, it can also produce a small-sized light guide plate, and there is no warpage deformation of the ultra-thin light guide plate caused by the stress problem in the light guide plate generated by the injection molding process technology, thereby greatly improving the yield rate.

Therefore, the invention of the high-efficiency energy-saving light guide plate and the production method thereof has the advantages of three-dimensional micro structure, high light efficiency, low investment, low cost, high production speed, high yield rate, environmentally friendly production, no large or small size and no size limitation. It will completely replace the existing light-efficiency medium and large-sized light guide plates made of screen printing light guide inks such as LCD TVs, computers, displays, and flat lamps. In the small size field of mobile phones, tablets, and notebooks, At present, the injection of micro-structured light guide plates at least tens of millions of all-electric injection molding equipment and molds compared to the investment of the invention can be said to be minimal, especially for the ultra-thin trend of the light guide plate does not warp deformation phenomenon The yield is high and the light efficiency is equivalent, so in the small size field it will be divided into half-day with the injection molding microstructured light guide plate, and will continue to eat into this field.

DRAWINGS

1 is a schematic view of a flat type transparent substrate.

2 is a schematic view of a wedge-shaped transparent substrate.

Fig. 3 is a schematic view showing the structure of a micro-cylindrical prism-shaped transparent substrate whose upper surface is a micro-cylindrical prism.

4 is a schematic view showing the structure of the upper surface of the microtriangular transparent substrate.

Fig. 5 is a plan view showing an adhesive pattern layer in which a light source is provided on a short side as an entrance end side of the light incident side.

Fig. 6 is a plan view showing an adhesive pattern layer in which light sources are disposed on the long side as the light incident side end faces.

Figure 7 is a plan view of the adhesive layer pattern of the light-emitting board of the computer illuminated keyboard.

Figure 8 is a plan view of an adhesive graphic designing a light guide plate adhesive glue pattern layer.

Figure 9 is a side view of a light guide plate coated with an adhesive pattern layer.

Figure 10 is a side elevational view of a viscous microsphere-like scattering particle light guide plate on a layer of adhesive glue.

Figure 11 is a side view of a light guide plate with a conical scattering particle implanted on the adhesive pattern layer.

Figure 12 is a plan view of a circular microstructure scattering three-dimensional pattern layer unit containing scattering particles.

Figure 13 is a plan view of a square microstructured scattering three-dimensional pattern layer unit containing scattering particles.

Figure 14 is a side view showing the structure of a micro-spherical scattering particle microstructure scattering three-dimensional pattern layer unit.

Figure 15 is a side view showing the structure of a microspherical overlapping scattering particle microstructure scattering three-dimensional pattern layer unit.

Figure 16 is a side view showing the structure of a spherical overlapping scattering particle microstructure scattering three-dimensional pattern layer unit.

Figure 17 is a side view showing the structure of a conical scattering particle microstructure scattering three-dimensional pattern layer unit.

Figure 18 is a side view showing the structure of a conical overlapping scattering particle microstructure scattering three-dimensional pattern layer unit.

Figure 19 is a side view showing the structure of a conical overlapping scattering particle microstructure scattering three-dimensional pattern layer unit.

Figure 20 is a side elevational view of a light guiding ink dot of the prior art screen printing technique.

21 is a process flow diagram of a microstructured light guide plate.

Figure 22 is a schematic view showing the structure of a single-sided microstructured light guide plate of Embodiment 1.

23 is a schematic structural view of a single-sided microstructured light guide plate of Embodiment 2.

Figure 24 is a schematic view showing the structure of a single-sided microstructured wedge-shaped light guide plate of Embodiment 3.

Figure 25 is a schematic view showing the structure of a double-sided microstructured light guide plate of Embodiment 4.

Fig. 26 is a structural schematic view showing the formation of a flat light guide plate by overlapping the single-sided and micro-structures of the embodiment 5.

In the above illustration, 1 is a transparent substrate, 2 is a light-incident end surface, 3 is a bottom plane, 4 is a light-emitting upper surface, 5 is a reflective-side end surface, 6 is a microstructure-scattering three-dimensional pattern layer unit, and 7 is a bonding. Adhesive layer, 8 is scattering particles, 9 is light source, 10 is micro-structure scattering three-dimensional pattern layer unit amplification structure, 11 is reflective film, 12 is brightness enhancement film, 13 is diffusion film, 14 is liquid crystal panel, 15 is backlight module , 16 is a liquid crystal module.

Figure 27 is a photograph of a background blue microstructured scattering three-dimensional pattern layer unit made by this technique.

28 is a schematic structural view of a single-sided microstructured light guide plate of Embodiment 13.

detailed description

Embodiment 1: Referring to Figures 22, 5, 12, 14, 15, 16, 20, 1, 9, 10, 21, 27, 32 吋 LCD TV light guide and its LCD TV

10 is a side view of a 32-inch liquid crystal television honeycomb high-efficiency energy-saving microstructure light guide plate, the light guide plate includes a colorless transparent methyl methacrylate flat-plate type substrate 1, and a light-incident side for receiving light into the interior. The end surface 2, the opposite side of the light-incident end surface, and the remaining side of the reflective-side end surface 5 to which the reflective film is applied, and the light-emitting plane 4 from which the light intersecting the light is emitted from the inside and the bottom having the scattering microstructure pattern opposite to the light-emitting plane 4 The plane 3 is constituted, wherein the microstructure scattering three-dimensional pattern layer on the bottom plane 3 is formed by coating a bottom layer of the substrate with a layer having a distribution pattern as shown in FIG. 5 for adjusting the brightness and uniformity of the overall light. a circular ultraviolet curing colorless transparent resin type adhesive unit (as shown in Fig. 12), and in the direction away from the light-incident end surface 2, the adhesive unit pattern (as shown in Fig. 12) is small to large, The ultraviolet-curable colorless transparent resin type adhesive glue pattern layer 7 composed of a densely-ordered array is distributed, and a transparent polymethyl methacrylate microparticle having a refractive index of 1.49 micrometers is implanted on the adhesive rubber pattern layer 7 Get the ball 8 The microstructure scatters the three-dimensional pattern layer such that the transparent methyl methacrylate microspheres 8 on the surface of the adhesive pattern layer are only partially embedded in the colorless transparent adhesive pattern layer 7 and firmly adhered to the transparent substrate 1. Together, the remainder is exposed outside of the colorless transparent adhesive pattern layer 7.

Figure 12 is a plan view showing the structure of a circular microstructure-scattering three-dimensional pattern layer unit containing polymethyl methacrylate microsphere scattering particles. For the side structure diagram of the micro-spherical scattering particle microstructure scattering three-dimensional pattern layer unit, when the scattering particle diameter is larger than the adhesive glue thickness, a side structure diagram of the micro-spherical scattering particle microstructure scattering three-dimensional pattern layer unit is shown in FIG. 14; When the particle size of the scattering particles is smaller than the thickness of the adhesive, FIG. 15 is a side structural view of the micro-spherical overlapping scattering particle microstructure scattering three-dimensional pattern layer unit; when the scattering particle size is smaller than the thickness of the adhesive, the thickness of the adhesive When the edge is thin and thick in the middle, a side structure diagram in which the spherical overlapping scattering particle microstructure scattering three-dimensional pattern layer unit is shown in Fig. 16 is presented. Figure 20 is a side elevational view of an ink dot obtained by screen printing using a light directing ink for comparison with the structure of the present invention. Figure 27 is a photograph of a physical structure of a microscopic scattering three-dimensional pattern layer unit similar to the side structure of Figure 16 fabricated by the method of the present invention.

The portion indicated by reference numeral 15 in FIG. 22 is a side structure portion of a 32-inch honeycomb high-efficiency energy-saving liquid crystal television backlight module. An LED light source 9 is disposed in front of the light-incident side end of the light guide plate, and is disposed under the light-guide plate bottom plane 3. The reflective film 11 is provided with a brightness enhancement film 12 and a diffusion film 13 on the surface 4 of the light guide plate.

The portion indicated by reference numeral 16 in FIG. 22 is a side view of a 32-inch honeycomb energy-efficient liquid crystal module, and a liquid crystal panel is disposed in front of the backlight module 15. A television frame and a control system and a program are prepared outside the liquid crystal module 16, thereby producing a 32-inch cellular energy-saving liquid crystal television.

Referring to FIG. 21, the manufacturing method of the above light guide plate is as follows:

1. Providing a polished colorless transparent substrate according to the requirements of 32 ,, the other three side end faces 5 except one side of the short side light entrance side end face 5 are attached with a reflective film of 3 mm thick 32 吋 transparent methacrylate Dilute acid grease flat-plate type substrate 1 (Fig. 1).

2. The adhesive pattern which is gradually increased according to the pattern of the light scattering uniformity as shown in Fig. 5 with the circular scattering unit pattern away from the light-incident end surface 2, is screen-printed by photosensitive.

3. Using a screen printing machine, the ultraviolet-curable transparent resin-type adhesive is smeared onto the bottom plane 3 of the transparent substrate to obtain a transparent substrate containing an adhesive layer as shown in FIG.

4. Using the gravity planting technology equipment, the transparent polymethyl methacrylate microsphere 8 with a refractive index of 1.49 of 60 micrometers is implanted on the colorless transparent adhesive rubber pattern layer 7 and cured by the ultraviolet curing machine to obtain the figure. 10 32-inch honeycomb microstructured high-efficiency energy-saving LCD TV light guide.

Embodiment 2, referring to FIG. 23, 11, 12, 17, 18, 19, 20, 3, 21, 27, 42 吋 light guide plate and its LCD TV

11 is a side view showing the structure of a 42-inch liquid crystal television honeycomb high-efficiency energy-saving microstructure light guide plate, comprising a colorless transparent methyl methacrylate flat-plate type substrate 1, at least one light-incident end surface for receiving light into the interior. 2. The remaining side of the opposite side of the light-incident end face, which is coated with the reflective-side end face 5 of the reflective film, and the light-emitting plane 4 from which the light intersecting is emitted from the inside and the bottom plane having the scattering microstructure pattern opposite to the light-emitting plane 4 3, wherein the microstructure scattering pattern on the bottom plane 3 is a plurality of circular infrared rays having a certain pitch for adjusting the brightness and uniformity of the overall light by coating a plane pattern as shown in FIG. 5 on the bottom plane of the substrate. The heat-curable colorless transparent resin type adhesive unit (as shown in FIG. 12), and in the direction away from the light-incident end surface 2, the adhesive unit pattern (as shown in FIG. 12) is small to large, and is dense to dense. The infrared heat-curable colorless transparent resin-type adhesive rubber pattern layer 7 composed of a sequential array is distributed, and a transparent polymethyl methacrylate having a heat of 80 μm and having a refractive index of 1.49 is implanted on the adhesive pattern layer 7. Lipid micro-cone particles 8 The obtained microstructure scatters the three-dimensional pattern layer, so that each transparent polymethyl methacrylate cone 8 on the surface of the adhesive three-dimensional pattern layer has only the lower portion of the cone embedded in the colorless transparent adhesive pattern. The layer 7 is firmly bonded to the transparent substrate 1 and the remaining tips are mostly exposed outside the colorless transparent adhesive pattern layer 7. Figure 12 is a circle containing polymethyl methacrylate methyl conical scattering particles A structural plan view of a micro-structure scattering three-dimensional pattern layer unit. For the side structure diagram of the micro-conical scattering particle microstructure scattering three-dimensional pattern layer unit, when the scattering particle diameter is larger than the adhesive glue thickness, FIG. 17 is a side structure diagram of the conical scattering particle microstructure scattering three-dimensional pattern layer unit; When the scattering particle diameter is smaller than the thickness of the adhesive, FIG. 19 is a side structural view of the conical overlapping scattering particle microstructure scattering three-dimensional pattern layer unit. Figure 20 is a side elevational view of an ink dot obtained by screen printing using a light directing ink for comparison with the structure of the present invention.

The portion indicated by reference numeral 15 in FIG. 23 is a side structure diagram of a 42-inch honeycomb high-efficiency energy-saving liquid crystal television backlight module. An LED light source 9 is disposed in front of the light-incident side of the light guide plate, and is disposed under the light-guide plate bottom plane 3. The reflective film 11 is provided with a brightness enhancement film 12 and a diffusion film 13 on the surface 4 of the light guide plate.

The portion indicated by reference numeral 16 in FIG. 23 is a side view of a 42-inch honeycomb energy-efficient liquid crystal module, and a liquid crystal panel is disposed in front of the backlight module 15. A TV frame and a control system and a program are prepared outside the liquid crystal module 16, thereby producing a 42-inch cellular energy-saving liquid crystal television.

1. Providing a polished colorless transparent substrate according to the requirement of 42 ,, the other three side end faces 5 except one side of the short side light entrance side end face 5 are attached with a reflective film of 3 mm thick and 42 吋 large and small surfaces having a perpendicular The light-incident end surface 2 is a micro-cylindrical prism transparent methyl methacrylate substrate 1 (see Fig. 3).

3. Using a screen printing machine, the infrared heat-curing transparent adhesive is smeared onto the bottom plane 3 of the transparent substrate to obtain a transparent polymethyl methacrylate containing the infrared heat-curing transparent adhesive pattern layer as shown in FIG. Fat substrate.

4, using high-voltage electrostatic beading technology and equipment, 80 micron transparent polymethyl methacrylate methyl mini cone particles 8 planted on the bottom surface of the transparent substrate 3, cured by infrared heat curing machine, made as shown 11 42-inch honeycomb microstructured high-efficiency energy-saving LCD TV light guide.

Embodiment 3: Referring to Figures 24, 2, 13, 14, 15, 16, 20, 21, 27, 14 吋 light guide plate and notebook computer thereof

24 is a side view of a notebook computer honeycomb energy-efficient microstructured light guide plate of a 14-inch colorless transparent PC wedge substrate 1 (FIG. 2) injection molded by an all-electric injection molding machine, the light guide plate comprising a colorless transparent wedge PC. The substrate 1, at least one light-receiving end surface 2 for receiving light incident inside, and the opposite side of the light-incident end surface intersecting and intersecting the reflective-side end surface 5 coated with the reflective film, and the light intersecting the light-emitting surface thereof is emitted from the inside The plane 4 is formed with a bottom plane 3 having a scattering microstructure pattern opposite to the light exit plane 4, wherein the microstructure scattering three-dimensional pattern layer on the bottom plane 3 is coated with a plurality of layers on the bottom plane of the substrate for adjusting the overall light brightness. And a plurality of square ultraviolet curing colorless transparent resin type adhesive glue units having a certain interval (see FIG. 13), and the square adhesive glue pattern is away from the light incident side end surface 2 The layer unit pattern (as shown in FIG. 13) is an ultraviolet-curable colorless transparent resin type adhesive glue pattern layer 7 composed of a small to large, densely packed sequence array, and is implanted on the adhesive pattern layer 7. The microstructure-scattering three-dimensional pattern layer obtained by sticking the spherical glass beads 8 having a refractive index of 1.93 of 50 μm causes the transparent glass beads 8 on the surface of the adhesive pattern layer to be partially embedded only in the colorless transparent adhesive pattern layer. 7 is firmly bonded to the transparent substrate 1 and the remaining portion is exposed outside the colorless transparent adhesive pattern layer 7.

Figure 13 is a plan view of a square microstructured scattering three-dimensional pattern layer unit containing glass bead scattering particles. For the side structure diagram of the glass microbead scattering particle microstructure scattering three-dimensional pattern layer unit, when the glass bead scattering particle diameter is larger than the adhesive glue thickness, as shown in FIG. 14 is a micro spherical scattering particle microstructure scattering three-dimensional pattern layer unit. Side structure diagram; when the particle size of the glass bead scattering particles is smaller than the thickness of the adhesive, the side structure diagram of the microscopic scattering three-dimensional pattern layer unit of the glass microbead overlapping scattering particles is shown in FIG. 15; when the glass microsphere scattering particle size When the thickness of the adhesive is less than the thickness of the adhesive, the thickness of the adhesive is thin and thick at the middle, as shown in FIG. 16 is a side structural view of the micro-overlapping scattering particle microstructure scattering three-dimensional pattern layer unit; FIG. 20 is currently using a light guiding ink through the screen. The side structure of the ink dot obtained by the printing technique is used for comparison with the structure of the present invention; and Fig. 27 is a photograph of the microstructure scattering unit similar to the side structure of Fig. 16 produced by the method of the present invention.

The portion indicated by reference numeral 15 in FIG. 24 is a side structure diagram of a 14-inch honeycomb high-efficiency energy-saving notebook computer backlight module. An LED light source 9 is disposed in front of the light-incident side of the light guide plate, and is below the bottom plane 3 of the light guide plate. The reflective film 11 is provided, and a brightness enhancement film 12 and a diffusion film 13 are disposed on the surface 4 of the light guide plate.

The portion indicated by reference numeral 16 in FIG. 24 is a side view of a 14-inch honeycomb high-efficiency energy-saving notebook computer module, and a liquid crystal panel is disposed in front of the backlight module 15. A notebook computer other hardware and control system is prepared outside the liquid crystal module 16, thereby producing a 14-inch energy-efficient notebook computer.

1. Provide 14-inch injection molded wedge-shaped transparent PC material substrate. (Figure 2)

2. The adhesive pattern which is designed according to the uniformity of the light and which is gradually away from the long-edge side light-incident end face 2, and the square scattering unit pattern is gradually enlarged, is laser-engraved to form a hollow steel plate.

3. Using a screen printer, the ultraviolet-curable transparent adhesive is smeared onto the bottom plane 3 of the transparent substrate to obtain a transparent substrate containing the adhesive pattern layer.

4. Using the gravity beading technology equipment, the spherical glass microbeads with a diameter of 50 μm and a refractive index of 1.93 are implanted on the bottom surface 3 of the transparent wedge substrate, and cured by an ultraviolet curing machine to obtain a 14-inch honeycomb microstructure and energy-saving. Wedge laptop light guide.

Embodiment 4: Double-sided microstructure light guide plate and LCD TV

As shown in FIG. 25, this embodiment differs from Embodiment 1 in that a microstructure scattering three-dimensional pattern layer having the same structure as that on the bottom plane of the substrate is disposed on the light-emitting plane of the upper surface of the transparent substrate.

Example 5: Double-layer microstructured light guide plate and advertising LCD TV

As shown in FIG. 26, the double-sided microstructure light guide plate described in Embodiment 4 and the single-sided microstructure light guide plate described in Embodiment 1 are overlapped.

Embodiment 6: Referring to Figure 21, a 30 x 120 cm light guide plate and its flat panel lamp.

1. Adopting cutting and polishing, the other three side end faces except one side of the short side light-incident end face 2 are attached with a reflective film, 4 mm thick, 30×120 cm, and the upper surface is a micro-triangle colorless transparent methyl acrylate Fat plate type substrate (Figure 4).

2. The adhesive pattern layer composed of the circular unit pattern far away from the light-incident end surface 2 is gradually increased according to the uniformity of the light in advance, and the screen printing screen is formed by the photosensitive.

3. Using a screen printing machine, the infrared heat-curing transparent adhesive is smeared onto the bottom plane 3 of the transparent substrate to obtain a transparent substrate containing an adhesive layer as shown in FIG.

4. Using the gravity beading technology and equipment, the spherical glass microbeads with a refractive index of 1.93 and 150 micrometers are implanted on the bottom surface of the glass substrate. 3, and cured by an infrared curing machine to obtain a honeycomb structure of 30×120 cm. Light guide plate.

5. Install a flat lamp frame and power supply on a 30×120cm honeycomb microstructure high-efficiency energy-saving light guide plate to produce high-efficiency energy-saving flat lamps.

Embodiment 7: Computer illuminated keyboard light guide plate

As shown in FIG. 7, except for the size of the light guide plate of the embodiment 1, the adhesive pattern layer of the transparent substrate is designed according to the computer keyboard position block as shown in FIG. 7, and the rest is the same as that of the first embodiment.

Embodiment 8: Referring to FIG. 8 and FIG. 21, a 100×100 cm advertising mark light guide plate

1. A 4 mm thick 100×100 cm size 1 transparent ultra-white glass substrate with a reflective film attached to the other two side end faces 5 except the two side long side light entrance end faces 2 is cut and polished.

2. Paste the computerized lettering film of the desired hollowed-out advertising pattern on the light-emitting surface of the transparent substrate.

3. Using a air compressor, a natural dry transparent adhesive is sprayed onto the light exiting surface of the transparent substrate to which the computer lettering film is attached.

3. Using compressed air, a 120 micron 1.93 refractive index glass microsphere particle 8 is sprayed onto the bottom surface of the transparent substrate by a spray gun. After it is naturally dried, the computer lettering film is lifted to obtain a 100×100 cm honeycomb. Microstructured energy efficient advertising logo light guide.

Example 9: 7 吋 tablet light guide

Figure 10 is a side view showing the structure of a tablet honeycomb high-efficiency energy-saving microstructure light guide plate having a thickness of 0.8 mm and a thickness of 0.8 mm. The light plate comprises a colorless transparent polymethyl methacrylate flat plate type substrate 1, at least one light-incident end surface 2 for receiving light into the interior, and opposite ends of the light-incident end surface, and the remaining surface is coated with a reflective film. Reflecting the side end face 5, and the light intersecting the light intersecting the light exiting plane 4 emitted from the inside and the bottom plane 3 having the scattering microstructure pattern opposite to the light exiting plane 4, wherein the microstructure scattering three-dimensional pattern layer on the bottom plane 3 is The bottom plane of the substrate is coated with a plurality of circular ultraviolet curing colorless transparent resin type adhesive glue units with a certain spacing for adjusting the brightness and uniformity of the overall light as shown in FIG. 5 (Fig. 12) And in the direction away from the light-incident side end face 2, the adhesive glue unit pattern (as shown in FIG. 12) is a small-to-large, light-to-dense sequence array of ultraviolet-curable colorless transparent resin-type adhesive. a pattern layer 7 and a micro-structure scattering three-dimensional pattern layer obtained by grafting a spherical glass bead 8 having a refractive index of 1.93 on the adhesive layer 7 to form a transparent spherical glass on the surface of the adhesive pattern layer Microbeads 8 are only Embedded in the colorless, transparent sub patterned adhesive glue layer 7 and the transparent substrate 1 is firmly bonded together, the remainder of the exposed outer transparent colorless adhesive glue layer 7 is patterned.

Figure 12 is a plan view showing the structure of a circular microstructure scattering three-dimensional pattern layer unit containing glass microbead scattering particles. For the side structure diagram of the micro-spherical scattering particle microstructure scattering three-dimensional pattern layer unit, when the glass bead scattering particle diameter is larger than the adhesive glue thickness, the side of the micro-spherical scattering particle microstructure scattering three-dimensional pattern layer unit is as shown in FIG. 14 . The structural diagram; when the particle size of the glass bead scattering particles is smaller than the thickness of the adhesive, the side structure diagram of the micro-spherical overlapping scattering particle microstructure scattering three-dimensional pattern layer unit is shown in FIG. 15; when the glass microbead scattering particle size is smaller than the viscosity When the thickness of the adhesive is thick, when the thickness of the adhesive is thin and thick at the middle, the side structure diagram of the micro-structure scattering three-dimensional pattern layer unit of the spherical overlapping scattering particles is shown in FIG. 16; FIG. 20 is currently obtained by the screen printing technology using the light guiding ink. The side structure of the ink dot is used for comparison with the structure of the present invention; and Fig. 27 is a photograph of the microstructure scattering unit similar to the side structure of Fig. 16 produced by the method of the present invention.

The portion indicated by reference numeral 15 in FIG. 22 is a side structure portion of a 7-inch honeycomb high-efficiency energy-saving tablet backlight module. An LED light source 9 is disposed in front of the light-incident side end of the light guide plate, and is disposed under the light-guide plate bottom plane 3 The reflective film 11 is provided with a brightness enhancement film 12 and a diffusion film 13 on the surface 4 of the light guide plate.

The portion indicated by reference numeral 16 in FIG. 22 is a side view of a 7-inch honeycomb energy-efficient liquid crystal module, and a liquid crystal panel is disposed in front of the backlight module 15. A device and control system and program are disposed behind the liquid crystal module 16, thereby producing a 7-inch cellular energy-saving tablet.

1. The polished colorless transparent substrate is cut according to the requirement of 7 inches, and the other three side end faces 5 except one side of the short side light entrance side end face 5 are affixed with a 0.8 mm thick 7 inch transparent methyl group with a reflective film. Acrylic acid methyl plate type substrate 1 (Fig. 1).

2. The adhesive pattern which is designed according to the uniformity of the light in FIG. 5 and which gradually increases with the circular scattering unit pattern away from the light-incident end surface 2, is laser-engraved to form a hollow steel plate.

4. Using the gravity beading technology equipment, the spherical glass beads 8 of 75 micrometer refractive index of 1.93 are implanted on the colorless transparent adhesive rubber pattern layer 7 and cured by the ultraviolet curing machine to obtain the 7-inch honeycomb as shown in FIG. Microstructured energy efficient tablet light guide.

Embodiment 10: Smartphone light guide plate

The difference between the embodiment and the light guide plate of the embodiment 3 is a flat type transparent substrate having a size of 4.0 吋 and a thickness of 0.8 mm. In the manufacturing method, the transparent adhesive is pad printed to the transparent by using a pad printing machine by making a pad printing plate. On the bottom plane of the substrate.

Embodiment 11: Referring to Figures 21 and 6, a 150×250cn large-size advertising light box light guide plate

1. Using a 6mm thick 150×250cm transparent methyl methacrylate flat plate substrate with a reflective film on the other two side end faces 5 except the two side long side light entrance side end faces 2 (Fig. 1) ).

2. The optically designed adhesive pattern of the circular scattering unit pattern as far away from the light-incident end surface 2 as shown in Fig. 6 is sprayed with a single-head or multi-head inkjet using a computer inkjet printer to spray the ultraviolet transparent adhesive. To the bottom plane of the transparent substrate.

3. Using gravity gravity planting technology related equipment, 120 micron transparent polymethyl methacrylate methyl microspheres 8 are implanted on the bottom surface of the transparent substrate 3, dried by ultraviolet curing machine to obtain large size honeycomb. Microstructured energy efficient advertising light box light guide.

4. The frame and semi-transparent advertisements are mounted on the light guide plate to become a book type advertising light box.

Example 12: 240 mm diameter circular light guide plate and its circular flat lamp

The difference between this embodiment and the light guide plate of Embodiment 6 is a circular transparent substrate having a diameter of 240 mm.

Embodiment 13: Referring to Figures 28, 5, 12, 14, 15, 16, 20, 1, 9, 10, 21, 27, 46 吋 LCD TV light guide and its LCD TV

The difference between the present embodiment and the light guide plate of the first embodiment is that the size is 46 吋, and the microstructure-scattering three-dimensional pattern layer is disposed on the light-emitting plane of the colorless transparent substrate, and the method of disposing the microstructure-scattering pattern is the same as that of the first embodiment.

Claims

A light guide plate comprising a colorless transparent substrate, the substrate having a light-incident end surface for receiving light into the interior, a light-emitting plane emitted by the light from the inside, and a bottom plane opposite to the light-emitting plane, wherein: a colorless transparent adhesive pattern layer is disposed on the bottom plane or/and the light-emitting plane of the colorless transparent substrate, and a plurality of micro-scattering particles are implanted on the adhesive-pattern layer to obtain a microstructure-scattering three-dimensional pattern layer. The implanted micro-scattering particles are all exposed or partially exposed on the surface of the adhesive pattern layer, and a part of the micro-scattering particles which are exposed on the surface of the adhesive-bonding pattern layer are embedded in the colorless transparent adhesive pattern layer. The adhesive is firmly bonded and the remaining portion is exposed to the outside of the colorless transparent adhesive pattern layer.
The light guide plate according to claim 1, wherein the colorless transparent adhesive is an ultraviolet light-curable colorless transparent resin type adhesive; or an infrared heat-curable colorless transparent resin type adhesive; or It is one of natural dry curing colorless transparent resin type adhesives.
The light guide plate according to claim 1, wherein the microstructure scattering three-dimensional pattern layer is a plurality of microstructures having a plurality of micro-scattering particles implanted with a certain interval for adjusting overall light brightness and uniformity. The scattering three-dimensional pattern layer unit is composed of; or the microstructure-scattering three-dimensional pattern layer is used for providing brightness to a block or a picture, and three micro-scattering particles are implanted in a corresponding block or image position thereof. Structure scattering block graphics or graphic composition.
The light guide plate according to claim 3, wherein the plurality of microstructure-scattering three-dimensional pattern layer units in which a plurality of micro-scattering particles are implanted are small and sparse near the light-incident end surface, and are away from the light-incident end surface. Large and dense.
The light guide plate according to claim 1, wherein a light-side end surface is disposed on one side thereof, and the microstructure-scattering three-dimensional pattern layer is a plurality of plants having a certain interval for adjusting overall light brightness and uniformity. The micro-structure scattering three-dimensional pattern layer unit is adhered to a plurality of micro-scattering particles, and in a direction away from the light-incident end surface, the microstructure-scattering three-dimensional pattern layer unit is arranged in a small to large, thin to dense array, and each The microstructured scattering three-dimensional pattern layer unit is implanted with a plurality of microstructured scattering particles.
The light guide plate according to claim 1, comprising a pair of oppositely disposed light incident side end faces, wherein said microstructure scattering three-dimensional pattern layer is provided with a certain interval for adjusting overall light brightness and uniformity. The plurality of micro-scattering three-dimensional pattern layer units implanted with a plurality of micro-scattering particles are arranged in the middle direction from the two opposite light-incident side ends, and the micro-structured scattering three-dimensional pattern layer unit is small to large and thin to dense. The sequential array is arranged, and each of the microstructure-scattering three-dimensional pattern layer units is implanted with a plurality of microstructured scattering particles.
The light guide plate according to claim 3, 4, 5 or 6, wherein the outline of the microstructure-scattering three-dimensional pattern layer unit is circular or square.
A light guide plate according to claim 1, 3, 4, 5 or 6, wherein said micro-scattering particles are colorless and transparent particles; or particles which have been subjected to surface coating treatment; or a mixture of the foregoing two .
A light guide according to claim 1, 3, 4, 5, 6, or 8, wherein said micro scattering particle size particle size is between 5 micrometers and 800 micrometers.
The light guide plate according to claim 1, 3, 4, 5, 6 or 8, wherein said colorless transparent micro-scattering particles have a refractive index of between 1.1 and 2.8.
The light guide plate according to claim 1, 3, 4, 5, 6 or 8, wherein the material of the colorless transparent micro-scattering particles is polymethyl methacrylate, glass, polycarbonate, MS A mixture of one or more of a resin, polyethylene terephthalate, polyethylene, polyvinyl chloride, polyacrylonitrile, polystyrene, nylon or melamine.
The light guide plate according to claim 1, 3, 4, 5, 6 or 8, wherein the shape of the micro-scattering particles is a sphere or a particle of a cone.
The light guide plate according to claim 1, 3, 4, 5, 6, 8, 9, 10, 11 or 12, wherein said micro scattering particles are colorless and transparent, and have a size of 20 μm. Spherical glass beads having a refractive index of 1.93 to 200 microns.
The light guide plate according to claim 1, 3, 4, 5, 6, 8, 9, 10, 11 or 12, wherein said micro scattering particles are colorless and transparent, and have a size of 20 μm. Polymethyl methacrylate microspheres with a refractive index of 1.49 to 200 microns.
A combined light guide plate characterized in that two or more of the light guide plates of any one of claims 1 to 14 are spatially superposed.
A planar light-emitting device comprising a light source disposed in front of a light-incident end of the light guide plate, wherein the planar light-emitting device comprises the light guide plate according to any one of claims 1 to 15.
A liquid crystal display device comprising: a liquid crystal display panel disposed in front of a light-emitting plane of a light guide plate or a planar light-emitting device, wherein the liquid crystal display device comprises the light guide plate according to any one of claims 1 to 15; or A planar light emitting device according to claim 16.
A liquid crystal display terminal device comprising: a device device and a control system disposed outside a light guide plate, a planar light emitting device or a liquid crystal display device, wherein the liquid crystal display terminal device comprises any one of claims 1 to 15 A light guide plate; or the planar light-emitting device according to claim 16; or one of the liquid crystal display devices according to claim 17.
A method of manufacturing a light guide plate according to claim 1, comprising the steps of:

(1) providing a colorless transparent substrate;

(2) providing a colorless transparent adhesive, which is an ultraviolet light-curable colorless transparent resin type adhesive; or an infrared heat-curable colorless transparent resin type adhesive; or is naturally dried One of curing a colorless transparent resin type adhesive;

(3) applying the above-mentioned colorless transparent adhesive glue to the bottom plane of the colorless transparent substrate or/and the light exiting surface in a pre-optically designed pattern by a coating method to form a colorless transparent adhesive. Rubberized pattern layer;

(4) providing the micro-scattering particles, and implanting the micro-scattering particles provided above onto the colorless transparent adhesive glue pattern of the transparent substrate by means of a grafting method, wherein the method of implanting is high pressure The intermittent suction and repulsive force generated by the high-voltage static electricity generated by the electrostatic generator uniformly implants the micro-scattering particles onto the colorless transparent adhesive pattern layer; or uniformly scatters the micro-scattering particles by the free-falling force and gravity Adhering to the colorless transparent adhesive pattern layer; or using an air compressor to uniformly scatter the micro-scattering particles onto the colorless transparent adhesive pattern layer by the spray force of the compressed air;

(5) curing a colorless transparent substrate to which the above-mentioned micro scattering particles are adhered, and curing the colorless transparent adhesive to obtain the high-efficiency and energy-saving microstructure light guide plate, and the curing treatment method is UV-curable colorless transparent adhesive is cured by UV curing machine; it is cured by infrared heat curing drying oven or oven using infrared heat curing colorless transparent adhesive; The adhesive is cured by a hurricane drying or natural drying method.
The method of manufacturing a light guide plate according to claim 19, wherein the coating method adopted in the step (3) is a screen printing plate, laser engraving or chemical etching hollow steel which is formed by using the designed pattern. The screen printing machine uses a squeegee printing technique to apply the transparent adhesive to the colorless transparent substrate bottom plane or/and the light exiting plane; or, the coating method adopted in the step (3) is designed. The pattern computer output uses a single nozzle or multiple nozzles of a digital inkjet printer to apply a transparent adhesive to the bottom surface of the colorless transparent substrate or/and the light exiting plane; or, the coating method used in the step (3) is The pad printing plate made with the designed pattern is applied by a pad printing technique to the bottom surface of the colorless transparent substrate or/and the light exiting plane: alternatively, the coating method used in the step (3) is Making a printing intaglio using a designed pattern. Applying a transparent adhesive to a colorless transparent substrate bottom plane or/and a light exiting plane using a gravure printing machine or a gravure reverse printing press; or, the coating used in the step (3) Overlay Using patterning designed hollow die pattern using compressed air spray technique is similar to the transparent adhesive is coated onto a colorless transparent plastic substrate on the bottom plane or / and the light exit plane.