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CN101196585A - Bending prism concentration piece containing cushion layer - Google Patents

Bending prism concentration piece containing cushion layer Download PDF

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Publication number
CN101196585A
CN101196585A CNA2006101618242A CN200610161824A CN101196585A CN 101196585 A CN101196585 A CN 101196585A CN A2006101618242 A CNA2006101618242 A CN A2006101618242A CN 200610161824 A CN200610161824 A CN 200610161824A CN 101196585 A CN101196585 A CN 101196585A
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CN
China
Prior art keywords
bed course
bending prism
concentration piece
described bending
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2006101618242A
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Chinese (zh)
Inventor
唐世杰
吕英宗
张凯程
伍清钦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YINGHUI SCIENCE AND TECHNOLOGY Co Ltd
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YINGHUI SCIENCE AND TECHNOLOGY Co Ltd
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Priority to CNA2006101618242A priority Critical patent/CN101196585A/en
Publication of CN101196585A publication Critical patent/CN101196585A/en
Pending legal-status Critical Current

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Abstract

A bend prism condenser with cushion coat is provided, which comprises a substrate, a plurality of bend prism units and a cushion coat. The substrate is provided with a first surface and a second surface. The bend prism units are arranged on the first surface of the substrate and the cushion coat is arranged on the second surface of the substrate. The cushion coat is equipped with a plurality of small protruding structural units, and the protruding structural units opposite to the second surface of the substrate have at least two kinds of protruding height various. The small protruding structural units can make the ray through the cushion coat generate dispersion. The bend prism units have at least one bend extension curved surface to form a appropriate surface curvature change and lead the ray to generate refraction above two-dimension, and then reflect the bend prism units.

Description

The bending prism concentration piece that contains bed course
Technical field
The present invention relates to a kind of bending prism concentration piece that contains bed course, be particularly related to a kind of surface thereof and form several bending prism unit, and a bed course of another surface formation tool micro-convex structure unit, so that concentration pieces multiple effect, that be applied to LCD (Liquid CrystalDisplay) such as scattering and optically focused to be provided.
Background technology
Existing concentration piece please refer to shown in Fig. 1,2, and it discloses a concentration piece 9 and comprises a base material 91 and several prism elements 92, and this prism elements 92 is parallel on the first surface of this base material 91.This prism elements 92 is made up of two dip plane, and it is in order to refracted ray, so that produce the optically focused phenomenon.For example, when a second surface of a light 93 relative these base materials 91 is injected this base material 91 with a bigger incident angle (that is these light 93 approximate second surfaces that are not orthogonal to this base material 91), this light 93 can reflect the prism elements 92 of the first surface that penetrates this base material 91 smoothly.Yet, when a second surface of a light 94 relative these base materials 91 with a less incident angle (less than 6 ° to 9 °) when injecting this base material 91 (that is this light 94 is approximately perpendicular to second surface of this base material 91), 94 of this light can't reflect and penetrate this prism elements 92, penetrate the second surface of this base material 91 on the contrary because of total reflection once more, cause and reduce once penetrating efficient and increasing the light coefficient of losses of this light 94.
In addition, when combination two concentration pieces 9 constituting pair of lamina concentration piece (not illustrating), and when between two surface in contacts of this two concentration piece, forming an air gap, promptly be easy in this air gap, produce wetting phenomena or light by the time produce Newton ring.Wherein the formation of this air gap system may lead because of in dropping in the minute dust between this two concentration piece, causes this two concentration pieces driving fit really.From the above, when there is wetting phenomena in this bilayer concentration piece or produces Newton ring, promptly therefore cause bad contour patterns.
Another existing concentration piece, please refer to the U.S. and announce the 5th, 600, No. 462 " optical thin film and use the liquid crystal indicator (Optical film and liquid crystal displaydevice using the film) of this optical thin film " patents of invention, wherein optical thin film system comprises a base material, a wavy texture and an optically roughness structure, one surface of this base material has this wavy texture, between this wavy texture rule every arranging several equilateral triangle prisms, this equilateral triangular prism has level and smooth surface, and it is in order to refracted ray.Another surface of this base material has this optically roughness structure, so that make light form diffusion effect.Moreover the light after the above-mentioned diffusion can be assembled in this suitable inclination angle of equilateral triangular prism tool.
Another existing concentration piece, please refer to the U.S. and announce the 5th, 841, No. 572 " lens array plate, surface source of light and emissive display device (Lens array sheet, surface light source, andtransmission type display device) " patent of invention, wherein lens array plate system comprises a base material, a lens arra and a clustering, one surface of this base material has this lens arra, this lens arra is that one dimension or two-dimensional arrangements have several lens units, in order to refracted ray, so that produce the optically focused phenomenon.Another surface of this base material has this clustering, and this clustering forms a large amount of clusterings unit at random, and this clustering unit has prism shape, and the length and width of this clustering unit and wavelength tool correlativity high and a light source make light form diffusion effect.
Another existing concentration piece, please refer to the U.S. and announce the 6th, 280, No. 063 " optically focused object (Brightness Enhancement Article) " patent of invention, it discloses a concentration piece and comprises a base material, a linear prism elementary layer and light diffusion protuberance layer (light scatteringprotrusions), and this linear prism elementary layer and light diffusion protuberance layer are formed at going up and lower surface of this base material respectively.Light can enter this base material by this light diffusion protuberance layer side, and is penetrated by this linear prism elementary layer.This light diffusion protuberance layer has most granule proliferations, can form diffusion effect in order to cause light; This linear prism elementary layer is then in order to refracted ray, so that produce the optically focused phenomenon.
Another existing concentration piece, please refer to the U.S. and announce the 6th, 322, No. 236 " tool reduces the optical thin film and the manufacture method (Optical film with defect-reducing surface andmethod for making same) thereof of blemish surface " patents of invention, wherein an optical thin film comprises a base material, several first wetting minimizing unit (wet-out reducing means) and several second wetting minimizing unit, and a first surface of this base material and a second surface have this first wetting minimizing unit and the second wetting minimizing unit respectively.This first wetting minimizing unit is in order to the first surface that reduces this base material and the wetting phenomena (wet-out) between another optical surface, and also can reduce Newton ring (Newton ' s ring) and Moire effect (Moire effect).
Another existing concentration piece, please refer to the U.S. and announce the 6th, 356, No. 389 " subwavelength optical microstructure light collimation film (Subwavelength optical microstructure light collimating films) " patents of invention, wherein a light guide plate comprises a base material, a linear prism layer and a moth ocular structure layer (moth-eyestructures), and this base material has a first surface and a second surface.The first surface of this base material has this linear prism layer, in order to refracted ray, so that produce the optically focused phenomenon.The second surface of this base material has this moth ocular structure layer, and it reaches directing light again by increasing the light amount of incident, to improve the collimation ability of light.
Another existing concentration piece, please refer to the U.S. and announce the 6th, 880, No. 946 " the light collimation film of groove shape optical microstructures (Grooved optical microstructure light collimating films) " patents of invention, it comprises a base material, several linear optics unit, several scalariform plateaus and several basal planes, one surface of this base material has this linear optics unit, in order to refracted ray, so that produce the optically focused phenomenon.Another surface of this base material be staggered this scalariform plateau and basal plane are for making light form diffusion effect.
Above-mentioned existing concentration piece all is provided with refractive pattern layer (for example prism unit etc.) in a surface of this base material, and in another surface of this base material various diffusion layer is set, but mostly not the birefringence patterned layer improve.
Moreover, in U.S. of the previous application of applicant discloses No. 2005/0237641 " concentration piece of tool bending prism unit (Brightness enhancement film having curved prismunits) " patent of invention, it comprises a base material and several bending prism unit, one surface of this base material has this bending prism unit, at least one crooked curved surface that extends of this each tool of bending prism unit, it has surface curvature change in order to refracted ray, so that produce two-dimentional optically focused phenomenon, its above-mentioned relatively other existing concentration pieces have preferable refraction spotlight effect.
Summary of the invention
Fundamental purpose of the present invention is to overcome above-mentioned concentration piece shortcoming according to the previous bending prism unit of applying for of applicant, provide a kind of incident ray that makes to produce the refraction of two dimension at least, have two-dimentional optically focused, evenly diffusion, anti-wetting, reduce Newton ring, reduce Moire effect, promote the light source uniformity coefficient, modify defective and wear-resistant multiple effect, and reduce low-angle incident ray simultaneously by the probability of instead penetrating entirely, and then effective lifting once penetrates the concentration piece of efficient and reduction light coefficient of losses.
In order to achieve the above object, technical scheme provided by the invention is: a kind of bending prism concentration piece that contains bed course, it comprises a base material, several bending prism unit and a bed course.This base material has a first surface and a second surface.This bending prism unit cell arrangement is in the first surface of this base material, and this bed course is arranged in the second surface of this base material.This bed course has several micro-convex structure unit, and the second surface of relative this base material in this micro-convex structure unit has at least two kinds protrusion height variation.
The principle of work that contains the bending prism concentration piece of bed course of the present invention: the micro-convex structure unit of bed course is in order to eliminate optical interference phenomenons such as wetting, Newton ring between two diaphragms and Moire effect, and can reach flaw and the defective that reduces concentration piece, and increase wear-resistant ability; The bending prism unit has at least one crooked curved surface that extends, and to form suitable surface curvature change, cooperates the effect of micro-convex structure and diffusion particle, guides this light to produce the refraction of two dimension at least, penetrates this bending prism unit again.
The beneficial effect that contains the bending prism concentration piece of bed course of the present invention in sum: have two-dimentional optically focused, evenly diffusion, anti-wetting, reduce Newton ring, reduce Moire effect, promote the light source uniformity coefficient, modify defective and wear-resistant multiple effect, and reduce low-angle incident ray simultaneously by the probability of instead penetrating entirely, and then effective lifting once penetrates the concentration piece of efficient and reduction light coefficient of losses.
Description of drawings
Fig. 1: the stereographic map of existing concentration piece;
Fig. 2: the use synoptic diagram of existing concentration piece;
Fig. 3: the present invention contains the last parallax stereogram of the bending prism concentration piece of bed course;
Fig. 4: the present invention contains the following parallax stereogram of the bending prism concentration piece of bed course;
Fig. 5: the present invention contains the sectional perspective side view of the bending prism concentration piece of bed course;
Fig. 5 a: the present invention contains the sectional perspective side view of the bending prism concentration piece of bed course;
Fig. 6: the present invention contains the use signal of the bending prism concentration piece of bed course;
Fig. 7: the present invention contains the last parallax stereogram of the bending prism concentration piece of bed course;
Fig. 8: the present invention contains the positive side-looking microphotogram of sweep electron microscope of the bending prism concentration piece of bed course;
Fig. 9: the present invention contains the back side side-looking microphotogram of sweep electron microscope of the bending prism concentration piece of bed course.
Embodiment
For above-mentioned and other purpose of the present invention, feature, advantage can be become apparent, hereinafter will be especially exemplified by preferred embodiment of the present invention, and cooperate appended graphicly, be described in detail below.
Shown in Fig. 3,4,5, while, the bending prism concentration piece that contains bed course 1 of preferred embodiment of the present invention comprised a base material 11, several bending prism unit 12 and a bed course 13 (matte) with reference to shown in the microphotogram of the sweep electron microscope of Fig. 8 and Fig. 9.This base material 11 has a first surface 11a and a second surface 11b, and can wear for light and penetrate process.The first surface 11a of this base material 11 is as the light emitting side of this base material 11, and this second surface 11b is as the light light incident side of this base material 11, but vice versa.The microstructure unit (microstructure) of these bending prism unit 12 tool crooked outlines, this bending prism unit 12 is concordant to be arranged on the first surface 11a of this base material 11, and this bending prism unit 12 is positioned at the light emitting side of this base material 11, but also can be positioned at the light light incident side.This bending prism unit 12 is made up of one first dip plane 12a and one second dip plane 12b, at least one of this first dip plane 12a and the second dip plane 12b is a crooked curved surface that extends, but its formation rule or irregular wavy bending, to produce surface curvature change, and then be able on two-dimentional at least direction, produce light refraction, so that produce good optically focused phenomenon.
Shown in Fig. 3,4,5, first dip plane 12a of this bending prism unit 12 of each of preferred embodiment of the present invention and the crest angle of the second dip plane 12b are preferable between 70 ° to 160 °, particularly between 85 ° to 95 °.Each two these adjacent bending prism unit 12 has identical vertical height (this vertical height refers to the height perpendicular to this base material 11 planes), this vertical height between 10 μ m (micron) between the 100 μ m, preferably between 20 μ m to 75 μ m.Each two these adjacent bending prism unit 12 has horizontal width (this horizontal width means the width that is parallel to these base material 11 planes), and this horizontal width is between the 250 μ m, preferably between 25 μ m to 80 μ m between 10 μ m (micron).In addition, each two adjacent these bending prism unit 12 changes its surface curvature along the crooked route of same rule, for example make this crooked route change the crooked again 5 μ m of crooked 5 μ m earlier to the right left, but also can change its surface curvature along Different Rule or irregular crooked route.
In addition, please refer to shown in Fig. 5 a, in the bending prism concentration piece that contains bed course 1 of another preferred embodiment of the present invention, the first dip plane 12a of this bending prism unit 12 and the second dip plane 12b (that is at least one crooked curved surface that extends) can further select to be convexly equipped with mutually and form several staggered lateral ridges 121, to select to present continuous variation, similar face curved transition or different surfaces curved transition.
Shown in Fig. 3,4,5, the base material 11 of preferred embodiment of the present invention can utilize integrally formed mode to make by identical light-transmitting materials with bending prism unit 12; Perhaps, this base material 11 also can adopt applying, die, roll extrusion or mold pressing or other forming modes to make by different light-transmitting materials with bending prism unit 12, to meet different characteristics or to make requirement, reach the scope that increases the applicable scope of the present invention and the manufacturing.For example, this base material 11 can be drawn materials from the transparent base of various pliabilities (flexible), its be selected from polyethylene terephthalate (polyethylene-terephthalate, PET), at least a or several constituents in tygon (PE), poly-dioctyl phthalate second diester (PEN), polycarbonate (PC), polyvinyl alcohol (PVA) (PVA), Polyvinylchloride (PVC) and other high molecular polymers.This bending prism unit 12 is preferably ultraviolet curing glue (UV glue).
Shown in Fig. 3,4,5, while is with reference to shown in the microphotogram of the sweep electron microscope of Fig. 9, the bed course 13 of preferred embodiment of the present invention is made by transparent material, is by ultraviolet curing glue (UV glue), or also can be acryl class transparent resin (acrylic resin).Particularly, the material hardness of this bed course 13 is higher than the material hardness of this base material 11, and so this bed course 13 can be used for protecting this base material 11, to avoid this base material 11 wearing and tearing.Simultaneously, the shrinkage factor of the light-transmitting materials by this bed course 13 of suitable control is identical or be similar to the shrinkage factor of the light-transmitting materials of this base material 11, and so this bed course 13 can be further in order to prevent that this base material 11 from warpages taking place.Moreover the thickness of this bed course 13 is preferable to be maintained between 5 μ m to the 200 μ m, is beneficial to have concurrently reduce cost and control processing quality.Moreover the surface of this bed course 13 has several micro-convex structure unit 131.The diameter dimension of this micro-convex structure unit 131 is preferable to be kept between 0.2 μ m (micron) between the 100 μ m, particularly between 1.0 μ m (micron) between the 25 μ m, be beneficial to control processing quality.This micro-convex structure unit 131 be shaped as one or more mixing in ball arcuation, class ball arcuation, ellipticity, olive-shaped, ovum shape, crosswise, raster-like, straight line prism-like, crooked prism-like and the irregular polyhedrons shape.Particularly, the second surface 11b of this base material 11 relatively, this micro-convex structure unit 131 has at least two kinds protrusion height to be changed, and is dispersed in the surface of this bed course 13 in irregular mode at random.
The bed course 13 of preferred embodiment of the present invention can select to utilize modes such as roll extrusion, coating, stickup, evaporation or sputter to cover the second surface 11b of this base material 11, and this bed course 13 is positioned at the light light incident side of this base material 11.The present invention enumerates the manufacture method of several these bed courses 13 hereinafter, but is not limited in those manufacture methods:
(1) first embodiment:
At first, prepare a shaping roller (not illustrating) and at least a sand grains (not illustrating), the particle diameter of this sand grains is between the 100 μ m between 0.2 μ m (micron), be sprayed on this sand grains on the surface of this shaping roller in the sandblast mode, and by control sandblast speed, jet size or its translational speed etc., to regulate the sandblast density on this shaping roller.Through after the blasting treatment, the irregular nick structure (not illustrating) of random scatter on the surface of this shaping roller.
Then, at the first surface 11a of a base material 11 coating ultraviolet curing glue (UV glue), and be pre-formed this bending prism unit 12.Subsequently, second surface 11b at this base material 11 is coated with ultraviolet curing glue in addition, and utilize this ultraviolet curing glue of shaping roller roll extrusion of above-mentioned tool nick structure, make the irregular micro-convex structure unit 131 of random scatter on the surface of this ultraviolet curing glue, the shape complementarity of this micro-convex structure unit 131 is in this nick structure, is one or more mixing in ball arcuation, class ball arcuation, ellipticity, olive-shaped, ovum shape and irregular polyhedrons shape.After the ultraviolet curing adhesive curing of this second surface 11b, promptly form bed course 13 of the present invention (shown in attached photograph two).
(2) second embodiment:
The present invention also can select to utilize above-mentioned roll extrusion mode or other equivalent way to form this bed course 13 at the second surface 11b of this base material 11, the irregular micro-convex structure unit 131 of same random scatter on the surface of this bed course 13, and this micro-convex structure unit 131 be shaped as at least a of crosswise or raster-like or its mixing, and this micro-convex structure unit 131 is a time micron-scale level.This micro-convex structure unit 131 can be local similar pattern in the roughly same height, may be selected to be stochastic distribution, rotation or regularly arranged, and its minimum constructive height is greater than the wavelength of half incident ray, but maximum height is less than 500 μ m (micron).Moreover, this micro-convex structure unit 131 can comprise the group of the different protrusion heights of at least two groups, the group renaturation master micro-convex structure unit of attaching most importance to wherein, another group then is repeatability time micro-convex structure unit, and the height and the size of this repeatability time micro-convex structure unit are significantly less than the main micro-convex structure of this repeatability unit.
(3) the 3rd embodiment:
In like manner, the present invention also can select to utilize above-mentioned roll extrusion mode or other equivalent way to be pre-formed this bending prism unit 12 at the first surface 11a of this base material 11, and then form this bed course 13 at this second surface 11b, the irregular micro-convex structure unit 131 of same random scatter on the surface of this bed course 13, and be shaped as at least a of straight line prism-like or crooked prism-like or its of this micro-convex structure unit 131 mix, and the bearing of trend of the bearing of trend of this micro-convex structure unit 131 and this bending prism unit 12 is maintained equidirectional.
Please refer to shown in Fig. 5,6, on the concentration piece 1 of preferred embodiment of the present invention, when light is injected this concentration piece 1 incident of second surface 11b side of this base material 11 (that is by) by the surface of this bed course 13 for the first time, because the micro-convex structure unit 131 of this bed course 13 is the irregular surface that intersperses among this bed course 13, therefore the surface of each this micro-convex structure unit 131 can provide a light refraction interface, make light 14 or 15 form diversified refraction and scattering by the surface, and enter in this bed course 13, with the probability of relative increase diffusion and change angle.Again, because first dip plane 12a of this bending prism unit 12 and the form of the second dip plane 12b can be selected identical or different, but at least one of this first dip plane 12a and the second dip plane 12b is a crooked curved surface that extends, but its formation rule or irregular wavy bending, so produced surface curvature change, favourable guiding like this produces the refraction of two dimension at least by a light 14 or 15 of the second surface 11b incident of this base material 11.
Therefore, as shown in Figure 6, no matter be that these light 14 relative these bed courses 13 and second surface 11b inject this bed course 13 and base material 11 (that is these light 14 approximate surfaces that are not orthogonal to this micro-convex structure unit 131) with a bigger incident angle, or these light 15 relative these bed courses 13 and second surface 11b inject this bed course 13 and base material 11 (that is this light 15 is approximately perpendicular to surface of this micro-convex structure unit 131) with a less incident angle (less than 6 ° to 9 °), this light 14 and 15 all can change angle by the micro-convex structure unit 131 of this bed course 13 and cause diffusion effect, and this light 14 and 15 also produces countless diffusion beam split by the micro-convex structure unit 131 of this bed course 13, penetrate angle and concentrate light to revise, therefore not only can reflect the first dip plane 12a and the second dip plane 12b that penetrates this bending prism unit 12 smoothly, also can promote the light source homogeneity relatively simultaneously.In addition, because this bed course 13 directly is formed at the second surface 11b of this base material 11, so can prevent the interference that produced when contacting with each other when this concentration piece 1 and another concentration piece or other blooming pieces (not illustrating), and then effectively increase anti-wetting state and reduce the generation of Newton ring.
Bed course 13 of the present invention can effectively reduce the probability of light total reflection.The first dip plane 12a of this bending prism unit 12 and the second dip plane 12b also can provide crooked and extend curved surface, so that the incident ray tendency produces the two dimension refraction, concentrate the former scattered beam that has spread apart, and then increase the concentration piece briliancy.Therefore, the present invention can significantly promote once penetrating efficient and reducing the light coefficient of losses of this light 14 and 15 really, and obtains splendid two-dimentional at least spotlight effect.Existing concentration piece 9 compared to Fig. 2, concentration piece 1 of the present invention can promote the light source uniformity coefficient and modify light source, increase the briliancy homogeneity, and can pass through higher mist degree, modify the micro-structure flaw (for example: spot spots, scratch scratches or contamination stains etc.) of this concentration piece 1, so that improve the rate of pass and reduce manufacturing cost.Moreover this base material 11 is often because of the tendency of the different idiopathic generation warpages of form of this first and second surperficial 11a, 11b.At this moment, bed course 13 of the present invention can provide higher hardness, with relative minimizing, reduce and avoid this base material 11 that the probability of warpages takes place, therefore has preferable anti-warpage properties.Moreover during the piling up or carry of this concentration piece 1, bed course 13 of the present invention also can provide higher hardness, and protecting the lower surface 11b of this base material 11, and the surface of this bed course 13 is not to be tip shape, thus the unlikely scratch that causes, and have preferable wearing quality in addition.Therefore, the present invention can help promoting relatively the excellent acceptance rate of product.In sum, the present invention not only can provide two-dimentional optically focused, evenly diffusion, modify defective and wear-resistant effect, and further can increase anti-wetting (Anti-wet-out) property, reduce Newton ring (Newton ' s ring) and reduce Moire effect (Moire effect).On the other hand, please refer to shown in Figure 7, in a preferred embodiment of the present invention, also can be in the material of this bending prism unit 12 according to several diffusion particles 122 of predetermined ratio blending randomly, the mass ratio of these diffusion particle 122 relative these bending prism unit 12 is between 1% to 35%, particularly between 1% to 25%.Drawing materials of this diffusion particle 122 is different from the material of this bending prism unit 12, for example draws materials from acryl (acrylic) material and/or the vitreous (glass) material, and this vitreous material can further be selected from silicon dioxide (SiO 2), alundum (Al (Al 2O 3), boron oxide (B 2O 3), calcium oxide (CaO), magnesium oxide (MgO), silica gel (silicone resin), polyester resin (polyesterresin) and styrene type resin (styrene resin) in one or more constituents.Therefore, in the preparation, the present invention can adopt any existing blending mode to carry out blending, for example can in the ultraviolet curing glue of per 100 mass units, suitably sneak into the acryl material or the vitreous material of 1 to 35 mass unit, thereby prepare bending prism unit 12 structures that blending has this diffusion particle 122.Moreover the mean grain size of this diffusion particle 122 is preferable to be kept between 0.5 μ m (micron) between the 30 μ m, particularly between 0.5 μ m (micron) between the 10 μ m, be beneficial to control processing quality.That the shape of this diffusion particle 122 can be is spherical, one or more the mixing in near-spherical, ellipticity, olive-shaped, ovum shape and the irregular polyhedrons shape.
Referring again to shown in Figure 7, when light is injected this concentration piece 1 incident of second surface 11b side of this base material 11 (that is by) by the surface of this bed course 13 for the first time, because the micro-convex structure unit 131 of this bed course 13 is the irregular surface that intersperses among this bed course 13, therefore the surface of each this micro-convex structure unit 131 can provide a light refraction interface, make light pass through the surface and form diversified refraction and scattering (as shown in Figure 6), and enter in this bed course 13, with the probability of relative increase diffusion and change angle.Moreover, on concentration piece 1 of the present invention, the first dip plane 12a of this bending prism unit 12 and at least one of the second dip plane 12b are that a bending prism unit 12 extends curved surface, to produce surface curvature change, favourable guiding like this produces the refraction of two dimension at least by the light (as shown in Figure 6) of the second surface 11b incident of this base material 11.Moreover, based on the material difference, the blending of the irregular or regular shape of diffusion particle of the present invention 122 is in this bending prism unit 12, and each this diffusion particle 122 then can further provide a light refraction interface with the handing-over interface (not indicating) of bending prism unit 12, after making that light forms diversified refraction and scattering by the handing-over interface, penetrate this bending prism unit 12 again, with the probability of relative increase diffusion and change angle.
In sum, easily penetrate the second surface of this base material 91 once more because of the total reflection of this light 94 compared to the existing concentration piece 9 of Fig. 2, cause and reduce once penetrating efficient and increasing shortcomings such as light coefficient of losses of this light 94, the present invention of Fig. 6 is owing to form this bending prism unit 12 at the first surface 11a of this base material 11, and form this bed course 13 at this second surface 11b, and the micro-convex structure unit 131 of this bed course 13 has at least two kinds protrusion height variation.Therefore, the present invention can provide really two-dimentional optically focused, evenly diffusion, anti-wetting, reduce Newton ring, reduce Moire effect, modify defective and wear-resistant multiple effect, and reduce low-angle incident ray simultaneously by the probability of instead penetrating entirely, and then effectively lifting once penetrates efficient and reduces the light coefficient of losses.

Claims (28)

1. bending prism concentration piece that contains bed course, it is characterized in that: described concentration piece comprises: a base material; Described base material has a first surface and a second surface;
Several bending prism unit; Described bending prism unit adjoins each other and is arranged in the first surface of described base material, and described bending prism unit has at least one crooked curved surface that extends, and forming surface curvature change, and guides the light of this incident to produce the refraction of two dimension at least; And
A bed course; It is arranged in the second surface of described base material described bed course; Described bed course has several micro-convex structure unit; The second surface of the described relatively base material in described micro-convex structure unit has at least two kinds protrusion height variation.
2. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: described bed course is one or both the combination in ultraviolet curing glue, the acryl class transparent resin.
3. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: described micro-convex structure unit be at random, the irregular surface that is dispersed in described bed course.
4. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: described micro-convex structure unit comprises the group of the different protrusion heights of at least two groups, wherein a cohort group is repeated main micro-convex structure unit, and another cohort group is repeatability time micro-convex structure unit; The height of described repeatability time micro-convex structure unit and size are less than the height and the size of the main micro-convex structure of described repeatability unit.
5. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: the diameter dimension of described micro-convex structure unit is between 0.2 micron to 100 microns.
6. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: the shape of described micro-convex structure unit is elected one or more in arcuation, class ball arcuation, ellipticity, olive-shaped, ovum shape, crosswise, raster-like, straight line prism-like, crooked prism-like and the irregular polyhedrons shape as.
7. according to the described bending prism concentration piece that contains bed course of claim 6, its feature in: when described micro-convex structure unit was the combination of straight line prism-like or crooked prism-like or straight line prism and crooked prism-like, the bearing of trend of the bearing of trend of described micro-convex structure unit and described bending prism unit was an equidirectional.
8. according to the described bending prism concentration piece that contains bed course of claim 6, it is characterized in that: described micro-convex structure unit forms through the shaping roller roll extrusion.
9. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: the material hardness of described bed course is higher than the material hardness of this base material.
10. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: the shrinkage factor of the material of described bed course is identical with the shrinkage factor of the material of described base material.
11. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: blending has several diffusion particles in the material of described bending prism unit; Described diffusion particle impels the light by described bed course incident to produce scattering, penetrates described bending prism unit again.
12. according to the described bending prism concentration piece that contains bed course of claim 11, it is characterized in that: the blending mass ratio of described diffusion particle and described bending prism unit is between 1% to 35%.
13. according to the described bed course bending prism concentration piece that contains of claim 11, its feature in: the mean grain size of described diffusion particle is between 0.5 micron to 30 microns.
14. according to the described bed course bending prism concentration piece that contains of claim 11, its feature is selected from spherical, near-spherical, ellipticity, olive-shaped, ovum shape and the irregular polyhedrons shape one or more in: the shape of described diffusion particle.
15. according to the described bending prism concentration piece that contains bed course of claim 11, it is characterized in that: described diffusion particle is the acryl material, or is vitreous material.
16. according to the described bending prism concentration piece that contains bed course of claim 13, it is characterized in that: described vitreous material is one or more in silicon dioxide, alundum (Al, boron oxide, calcium oxide, magnesium oxide, silica gel, polyester resin and the styrene type resin.
17. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: the crooked curved surface that extends of at least one of described bending prism unit is convexly equipped with several lateral ridges of formation, to form surface curvature change.
18. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: described bending prism unit is made up of one first dip plane and one second dip plane; In described first dip plane and second dip plane at least one is crooked extended surface.
19. according to the described bending prism concentration piece that contains bed course of claim 18, it is characterized in that: first dip plane of described bending prism unit and second dip plane are convexly equipped with mutually and form several staggered lateral ridges, to form surface curvature change.
20. according to the described bending prism concentration piece that contains bed course of claim 18, it is characterized in that: first dip plane of each described bending prism unit and the crest angle of second dip plane are between 70 ° to 160 °.
21. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: described bending prism unit changes its surface curvature along the crooked route of same rule.
22. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: described bending prism unit changes its surface curvature along the crooked route of Different Rule.
23. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: described bending prism unit has identical vertical height with respect to described base material.
24. according to the described bending prism concentration piece that contains bed course of claim 23, it is characterized in that: the vertical height of described bending prism unit is between 10 microns to 100 microns.
25. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: the horizontal width of described bending prism unit is between 10 microns to 250 microns.
26. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: described bending prism unit is from ultraviolet curing glue.
27. according to the described bending prism concentration piece that contains bed course of claim 1, it is characterized in that: described base material is to draw materials from the pliability transparent base.
28. according to the described bending prism concentration piece that contains bed course of claim 27, it is characterized in that: described flexual transparent base system is selected from one or more in polyethylene terephthalate, tygon, poly-dioctyl phthalate second diester, polycarbonate, polyvinyl alcohol (PVA), Polyvinylchloride and the high molecular polymer.
CNA2006101618242A 2006-12-05 2006-12-05 Bending prism concentration piece containing cushion layer Pending CN101196585A (en)

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Application Number Priority Date Filing Date Title
CNA2006101618242A CN101196585A (en) 2006-12-05 2006-12-05 Bending prism concentration piece containing cushion layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2006101618242A CN101196585A (en) 2006-12-05 2006-12-05 Bending prism concentration piece containing cushion layer

Publications (1)

Publication Number Publication Date
CN101196585A true CN101196585A (en) 2008-06-11

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CNA2006101618242A Pending CN101196585A (en) 2006-12-05 2006-12-05 Bending prism concentration piece containing cushion layer

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102540293A (en) * 2011-12-21 2012-07-04 北京康得新复合材料股份有限公司 Prism structure light enhancement film with scraping resistance characteristic
CN102981196A (en) * 2012-12-11 2013-03-20 南京中电熊猫液晶显示科技有限公司 Cylindrical lens grating, grating parallax barrier type stereoscopic display device and parallax barrier
CN103168258A (en) * 2010-10-28 2013-06-19 皇家飞利浦电子股份有限公司 Collimator comprising a prismatic layer stack, and lighting unit comprising such collimator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103168258A (en) * 2010-10-28 2013-06-19 皇家飞利浦电子股份有限公司 Collimator comprising a prismatic layer stack, and lighting unit comprising such collimator
CN103168258B (en) * 2010-10-28 2016-01-20 皇家飞利浦电子股份有限公司 Comprise the collimating apparatus of prismatic layer stack and comprise the lighting unit of such collimating apparatus
CN102540293A (en) * 2011-12-21 2012-07-04 北京康得新复合材料股份有限公司 Prism structure light enhancement film with scraping resistance characteristic
CN102981196A (en) * 2012-12-11 2013-03-20 南京中电熊猫液晶显示科技有限公司 Cylindrical lens grating, grating parallax barrier type stereoscopic display device and parallax barrier

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Open date: 20080611