CN103105641A - Composite light guide plate and production method thereof - Google Patents
Composite light guide plate and production method thereof Download PDFInfo
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- CN103105641A CN103105641A CN201310060194XA CN201310060194A CN103105641A CN 103105641 A CN103105641 A CN 103105641A CN 201310060194X A CN201310060194X A CN 201310060194XA CN 201310060194 A CN201310060194 A CN 201310060194A CN 103105641 A CN103105641 A CN 103105641A
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- light
- face
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
Abstract
Provided is a composite light guide plate. The composite light guide plate comprises a transparent substrate (1), a light leading-out film (2) is attached on the substrate (1), and the bottom face of the light leading-out film (2) is a combined face of a convex face (3) and a concave face and is the attached face with the substrate. A natural transitional face of the convex face and the concave face is of an inclined face or an arc-shaped face and serves as reflection faces (5, 6) of light. The width or the diameter of the convex face is a, a=0.005-0.5mm, surface roughness R of the convex face and the transitional face is smaller than 0.05, the height h of the reflection face is 0.65-2.5 times of the width or the diameter a of the convex face, and the included angle between tangent plane of any point on the reflection face and the top face of the substrate is 30 degrees-80degrees. The light guide plate is applied to lighting or luminous displaying, and the production of the light guide plate includes six steps: choosing substrate material; making the substrate; choosing the light leading-out material; making a mold; and making and attaching the light leading-out film. Compared with the prior art, the composite light guide plate has the advantages of being high in lighting effect, and controllable in radiance and uniformity, and possessing a self-protection interface structure and the like.
Description
Technical field
The present invention relates to a kind of optical material and production method thereof, specifically be applied to throw light on or light-emitting display apparatus, and line source and pointolite can be converted into composite guide tabula rasa and the production method thereof of area source.
Background technology
CN102565923 discloses a kind of " composite light guide plate ", to be pasted with hyaline membrane under transparency carrier, bottom or upper face at this hyaline membrane are printed with light guiding points, the defective of this composite guide tabula rasa is: reflective printing ink or the astigmatic printing ink light efficiency of printing light guiding points are not high, the two sides bright dipping, need to add reflector in one side, affect light efficiency and increase cost, can't make large-size light-conducting plate.
It is to be become with one deck flexible light-conducting Film laminated at least by substrate layer that CN101216573 discloses " a kind of combined light guide board and manufacture method "; From the light conduction principle, referring to Figure 15, at wherein one or both sides processing V-shaped groove or the convex-concave surface of two faces of outermost of composite bed, when light between two faces of whole composite bed during total reflection, by V-type groove or convex-concave surface diffuse reflection or reflect the plane.Its defective has 4 points:
The one, the two sides bright dipping needs to add reflector in one side, affects light efficiency and increases cost.The 2nd, emergent light is the polarizers of big angle scope diffusion, is difficult to the emergent light angle is controlled.The 3rd, its light guiding points is distributed in the outside surface of flexible light-conducting Film laminated light guide plate, and easily laying dust and be difficult for removing clean, affect intensity of illumination, the easy clashing and breaking of light guiding points structure that expose, scratches, and affects result of use and serviceable life.The 4th, surjection lengthens the transmission range of light in plate, has increased light loss.
Summary of the invention
For the above-mentioned deficiency of prior art, the technical problem to be solved in the present invention is to provide luminance brightness adjustable composite guide tabula rasa and the production method thereof different with leaded light mechanism existing light guide plate that a kind of light efficiency is high, light guide structure can obtain self-protection, zones of different.
Explain that above-mentioned technical matters adopts following technical scheme: this composite guide tabula rasa, include the side and can thoroughly advance the transparency carrier of incident light, be fitted with transparent and flexible light on this substrate and draw film, the bottom surface that light is drawn film is the combinatorial surface of convex surface and concave surface, convex surface is the binding face with substrate, the natural transition face of convex surface and concave surface is inclined-plane or arcwall face, is the reflection of light face.
The width of described convex surface or diameter a are 0.005-0.5mm, convex surface and transition face surfaceness are less than R0.05, the height h of reflecting surface is land width or diameter a 0.65-2.5 times, and on reflecting surface, the angle of the tangent plane of any point and substrate top surface is 30 °-80 °.
The production method of this composite guide tabula rasa is carried out as follows:
(1) selection of baseplate material: select transmittance to make substrate greater than 90% organic glass, unorganic glass, PC plate, PS plate;
(2) making of substrate: according to selected material difference, respectively make the cambered plate of the smooth flat board of any surface finish or any surface finish by its conventional method;
(3) light is drawn the selection of membrane material: selecting transparent rubber or transparent plastic elastic body is raw material;
(4) light is drawn the making of film die: adopt ultraprecise optical grade machined mode to make the roller die mould of stamper mould or coating molding, pressing mold and roller die die surface structure are supporting consistent with the bottom surface structure negative and positive that light is drawn film;
(5) light is drawn the making of film: the different materials by step (3) is selected, adopt a kind of mould in step (4), and the light that it is 0.05-1mm less than R0.05, thickness that compacting or coating or flow casting molding make surfaceness is drawn film;
(6) fit: the light that applying makes through step (5) on the substrate that makes through step (2) is drawn film and is namely made this composite guide tabula rasa.
The invention has the beneficial effects as follows:
1. the mode by total reflection after the anaclasis out-of-plane of total reflection between base plan is derived, light efficiency is high.
2. the shortest path that transmits in substrate of light, reduce the absorption (method of diffusion can strengthen light transmission range in substrate) of light in substrate.
3. single face is drawn light, has deducted reflecting plate and has reduced light loss.
4. light efficiency is high, and emitting brightness controlled (the even or regional blast of bright dipping) can be made large-size light-conducting plate.
5. on the compound interface of light-guiding function district in composite plate, be not affected by the external environment, use reliable.
6. film can be cut into difformity and pattern is fitted again, provides personalized light source in fields such as advertising lighting house ornamentation curtain walls.
7. cost is low, and light efficiency is high, fits simple and reliable, can operate at the scene, and convenient, using value is high.
Description of drawings
Fig. 1 is this composite guide tabula rasa (plane) structural representation.
Fig. 2,3,4 is respectively this composite light guiding board plane, convex globoidal, cancave cambered surface light and moves towards schematic diagram.
Fig. 5,6,7,8,9,10 is the light lead point micromechanism schematic diagram of different shape.Wherein Fig. 6, Figure 10 are respectively the A-A view of Fig. 5, Fig. 9, and Fig. 7, Fig. 8 are respectively protruding and recessed reflecting surface microstructure schematic diagram.
Figure 11,12,13,14 draws four kinds of arrangement mode exemplary plot of film bottom surface light lead structure for light.
Figure 15 is that the light of documents 2 moves towards analysis chart.
Figure 16 is this composite guide tabula rasa reflectance mechanism schematic diagram.
Embodiment
Below the present invention, structure is implemented and with reference to accompanying drawing to be described in detail: referring to Fig. 1-10, this composite guide tabula rasa, include the side and can thoroughly advance the transparency carrier 1 of incident light, be fitted with transparent and flexible light on this substrate 1 and draw film 2, the bottom surface that light is drawn film 2 is the combinatorial surface of convex surface 3 and concave surface 4, and convex surface is and the binding face of substrate that the natural transition face of convex surface and concave surface is inclined-plane or arcwall face, be reflection of light face 5,6
The width of described convex surface 3 or diameter a are 0.005-0.5mm, convex surface and reflecting surface (being transition face) 5,6 surfacenesses are less than R0.05, reflecting surface 5,6 height h be convex surface 3 width or diameter a 0.65-2.5 doubly, on reflecting surface 5,6, the angle of the tangent plane of any point and substrate top surface is 30 °-80 °.
The production method of this composite guide tabula rasa is carried out as follows:
(1) selection of baseplate material: select transmittance to make substrate greater than 90% organic glass, unorganic glass, PC plate, PS plate; Exquisite, large-area transmittance should 〉=92%.；
(2) making of substrate: according to selected material difference, respectively make the cambered plate of the smooth flat board of any surface finish or any surface finish by its conventional method;
(3) light is drawn the selection of membrane material: selecting transparent rubber or transparent plastic elastic body is raw material; Select the preferred with silica gel of transparent rubber;
(4) light is drawn the making of film die: adopt ultraprecise optical grade machined mode to make the roller die mould of stamper mould or coating molding, the structure negative and positive that pressing mold and roller die die surface structure and light are drawn the film bottom surface are supporting consistent;
(5) light is drawn the making of film: the different materials by step (3) is selected, adopt a kind of mould in step (4), and the light that it is 0.05-1mm less than R0.05, thickness that compacting or coating or flow casting molding make surfaceness is drawn film;
(6) fit: the light that applying makes through step (5) on the substrate that makes through step (2) is drawn film and is namely made this composite guide tabula rasa.
referring to Fig. 2, 3, 4, one side of this composite light guiding base board 1 enters light 7 and 8, on a minizone of the substrate top surface that wherein light 8 directives are relative with concave surface 4, be the hole between this minizone and corresponding concave surface 4, air in the hole and the refringence of substrate are apart from large, continue to reflex to the bottom surface of substrate, reflexing to substrate top surface and light draws on the convex surface of film 2 (being binding face) 3 again, the refractive index of drawing film due to substrate and light is close, light 8 is refracted on inclined-plane or convex globoidal or cancave cambered surface (being reflecting surface) 5 or 6, then reflected light being led to light draws outside film 2, if wish obtains the light of drawing perpendicular to these film 2 end faces, can realize according to the pitch angle that the incident angle of incident light 7.8 is adjusted reflecting surface 5, if need to regulate uniformity coefficient and the brightness of drawing light, density and the convex surface 3 that can draw from adjusting light respectively the convex surface 3 of film bottom surface are recently realized with the area of concave surface 4, adjust uniformity coefficient and also need follow a principle: the convex surface near apart from incident light distributes should be more sparse than far away, more far away more intensive.Light guiding points (or claim light guide structure) can be parallel line type and arranges (as shown in figure 11) or arrange (as shown in figure 12) or arrange (as shown in figure 13) or arrange (as shown in figure 14) for irregular some type for regular some type for intersecting the two-wire type, front two kinds of arrangements can enter incident light from a side or the relative both sides of substrate 1, rear two kinds of arrangements can be advanced light from 1-4 side, arrange for intersection two-wire type, if the angle of cut is 90 ° or 90 ° ± 10 °, also can advance light from 1-4 side.
Can find out from the light trend of three kinds of composite guide tabula rasas of hollow cabochon of the convex globoidal type of the plane of Fig. 2, Fig. 3 and Fig. 4, meet the requirements as long as light is drawn the light lead point (light lead structure) of film bottom surface, all can realize drawing of light.It should be noted that when substrate 1 is protruding or cancave cambered surface, the binding face 3 that the light on it of fitting is drawn the end face of film 2 and bottom surface thereof is also inevitable become protruding or cancave cambered surface thereupon, but when concrete the making, whole light is drawn end face and the bottom binding face 3 of film 2 all should make the plane, cause is flexible elastic material, and the surface is mirror finish, and the applying continuously that the real estate of cambered surface and the light on plane are drawn the film binding face is not difficult.Substrate and light are drawn being affixed as minute surface is affixed of film, can glue together without tackifier, to reduce costs, to reduce operation and to improve light efficiency.
Figure 11-14 shows that four kinds of different light draw the convex surface of film bottom surface and the arrangement mode of concave surface, this just for example, parallel line type as Figure 11 is arranged, the intersection two-wire type arrangement of Figure 12 etc. can also be that discontinuous point-like is arranged, should " point " can be square, triangle, polygon etc., point can equate with the spacing of point or be unequal, the area of " point " is also changeable, but can not be greater than the binding face width that limits and the requirement of diameter a=0.005-0.5mm.
Reflecting surface 5 and 6 height h be the width of convex surface 3 or diameter a 0.65-2.5 doubly, the first appears can be mapped on face 5 after 3 for guaranteeing light 8 refractions, it two is to touch the end face of substrate 1 for preventing because external force makes concave surface 4.Referring to Figure 16.
d＝(e+c)/2
The angle of cut that e draws the film end face for the emergent light determined as required and light, e is generally the 60-120 degree.
C according to the actual selection light source, is the angle of cut of refract light and substrate top surface, is generally the 0-37 degree.
Thereby the scope of d is between 30-80, and d is reflecting surface 5,6 and the angle of cut of substrate top surface, take the 45-55 degree as preferred.The refractive power reflection spot to the height f of substrate top surface is: f=b*sinc*sind/sin (d-c), reflecting surface 5,6 height h are: h 〉=a*sinc*sind/sin (d-c).
This composite guide tabula rasa and prior art CN102565923 " composite light guide plate " have larger difference on structure and method for making, with regard to its Optical Mechanism, also have following difference:
Referring to Figure 15, existing light guide plate technology is wherein one or both sides processing V-shaped groove or the convex-concave surface at two faces of outermost of composite bed, when light between two faces of whole composite bed during total reflection, by V-type groove or convex-concave surface diffuse reflection or reflect the plane.
This composite guide tabula rasa is the minute surface conformable region 3 by film and substrate, and anaclasis is gone out substrate, and directly light total reflection is gone out composite surface by the reflecting surface 5 of film, not reflection transmission again in composite plate.
Just because of above-mentioned difference is arranged, this composite guide tabula rasa can embody following beneficial effect naturally: the mode by total reflection after the anaclasis out-of-plane of total reflection between base plan can be derived, the shortest path that light transmits in substrate reduces the absorption of light in substrate.Single face is drawn light, has deducted reflecting plate and has reduced light loss.It is high that these all embody light efficiency.Emitting brightness controlled (the even or regional blast of bright dipping) can be made large-size light-conducting plate.On the compound interface of light-guiding function district in composite plate, the function at self-protection interface is arranged, be not affected by the external environment, use reliable.Film can be cut into difformity and pattern is fitted again, provides personalized light source in fields such as advertising lighting or house ornamentation curtain walls.Cost is low, fits simple and reliable, can operate at the scene, and convenient, using value is high.
Claims (3)
1. composite guide tabula rasa, include the side and can thoroughly advance the transparency carrier (1) of incident light, it is characterized in that being fitted with on this substrate (1) transparent and flexible light and draw film (2), the bottom surface that light is drawn film (2) is the combinatorial surface of convex surface (3) and concave surface (4), convex surface is the binding face with substrate, the natural transition face of convex surface and concave surface is inclined-plane or arcwall face (5,6), is the reflection of light face.
2. composite guide tabula rasa as claimed in claim 1, the width or the diameter a that it is characterized in that described convex surface (3) are 0.005-0.5mm, convex surface and transition face surfaceness are less than R0.05, the height h of reflecting surface (5,6) is convex surface (3) width or diameter a 0.65-2.5 times, and the tangent plane of the upper any point of reflecting surface (5,6) and the angle of substrate top surface are 30 °-80 °.
3. the composite guide tabula rasa that send as claim 1 or 2 is characterized in that the production method of this light guide plate is carried out as follows:
(1) selection of baseplate material: select transmittance to make substrate greater than 90% organic glass, unorganic glass, PC plate, PS plate;
(2) making of substrate: according to selected material difference, respectively make the cambered plate of the smooth flat board of any surface finish or any surface finish by its conventional method;
(3) light is drawn the selection of membrane material: selecting transparent rubber or transparent plastic elastic body is raw material;
(4) light is drawn the making of film die: adopt ultraprecise optical grade machined mode to make the roller die mould of stamper mould or coating molding, pressing mold and roller die die surface structure are supporting consistent with the bottom surface structure negative and positive that light is drawn film;
(5) light is drawn the making of film: the different materials by step (3) is selected, adopt a kind of mould in step (4), and the light that it is 0.05-1mm less than R0.05, thickness that compacting or coating or flow casting molding make surfaceness is drawn film;
(6) fit: the light that applying makes through step (5) on the substrate that makes through step (2) is drawn film and is namely made this composite guide tabula rasa.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310060194.XA CN103105641B (en) | 2013-02-26 | 2013-02-26 | Composite light guide plate and production method thereof |
| PCT/CN2013/086295 WO2014131290A1 (en) | 2013-02-26 | 2013-10-31 | Composite light guide plate and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310060194.XA CN103105641B (en) | 2013-02-26 | 2013-02-26 | Composite light guide plate and production method thereof |
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| CN103105641A true CN103105641A (en) | 2013-05-15 |
| CN103105641B CN103105641B (en) | 2015-09-16 |
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| CN201310060194.XA Active CN103105641B (en) | 2013-02-26 | 2013-02-26 | Composite light guide plate and production method thereof |
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| WO (1) | WO2014131290A1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591760A (en) * | 2013-11-18 | 2014-02-19 | 江苏秀强玻璃工艺股份有限公司 | Glass layer frame and manufacturing method thereof |
| CN103712166A (en) * | 2014-01-03 | 2014-04-09 | 东莞市欧科光电科技有限公司 | Light guide bar for LCD |
| WO2014131289A1 (en) * | 2013-02-26 | 2014-09-04 | She Xiaofeng | Light-extraction film and production method thereof |
| WO2014131290A1 (en) * | 2013-02-26 | 2014-09-04 | She Xiaofeng | Composite light guide plate and production method thereof |
| CN105044816A (en) * | 2015-08-19 | 2015-11-11 | 广州创维平面显示科技有限公司 | Novel light guide plate and manufacturing method thereof |
| CN106633569A (en) * | 2016-11-30 | 2017-05-10 | 南通博泰美术图案设计有限公司 | Light guide plate with high outlet light brightness |
| WO2018126746A1 (en) * | 2017-01-05 | 2018-07-12 | 京东方科技集团股份有限公司 | Backlight module, display module and display device |
| CN111239887A (en) * | 2020-03-24 | 2020-06-05 | 杭州矽能新材料有限公司 | Light guide film, production method thereof and light guide device |
| CN113253382A (en) * | 2021-05-24 | 2021-08-13 | 佘晓峰 | Light guide structure capable of displaying light with various colors |
| CN113253381A (en) * | 2021-05-24 | 2021-08-13 | 佘晓峰 | Light guide structure capable of controlling light emitting position |
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| CN108627903A (en) * | 2017-03-17 | 2018-10-09 | 江苏日月照明电器有限公司 | A kind of light emission rate is high and smooth surface uniformly, the light guide plate of no visual spot |
| CN108020884A (en) * | 2018-01-18 | 2018-05-11 | 合肥泰沃达智能装备有限公司 | A kind of novel glass light guide plate and preparation method thereof |
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| WO2014131289A1 (en) * | 2013-02-26 | 2014-09-04 | She Xiaofeng | Light-extraction film and production method thereof |
| WO2014131290A1 (en) * | 2013-02-26 | 2014-09-04 | She Xiaofeng | Composite light guide plate and production method thereof |
| CN103591760A (en) * | 2013-11-18 | 2014-02-19 | 江苏秀强玻璃工艺股份有限公司 | Glass layer frame and manufacturing method thereof |
| CN103591760B (en) * | 2013-11-18 | 2015-08-19 | 江苏秀强玻璃工艺股份有限公司 | A kind of multilayer glass shelf and manufacture method |
| CN103712166A (en) * | 2014-01-03 | 2014-04-09 | 东莞市欧科光电科技有限公司 | Light guide bar for LCD |
| CN105044816A (en) * | 2015-08-19 | 2015-11-11 | 广州创维平面显示科技有限公司 | Novel light guide plate and manufacturing method thereof |
| CN106633569A (en) * | 2016-11-30 | 2017-05-10 | 南通博泰美术图案设计有限公司 | Light guide plate with high outlet light brightness |
| CN108279459A (en) * | 2017-01-05 | 2018-07-13 | 京东方科技集团股份有限公司 | Display module and display device |
| WO2018126746A1 (en) * | 2017-01-05 | 2018-07-12 | 京东方科技集团股份有限公司 | Backlight module, display module and display device |
| CN108279459B (en) * | 2017-01-05 | 2019-12-24 | 京东方科技集团股份有限公司 | Display module and display device |
| US10802205B2 (en) | 2017-01-05 | 2020-10-13 | Boe Technology Group Co., Ltd. | Backlight module, display module and display device |
| CN111239887A (en) * | 2020-03-24 | 2020-06-05 | 杭州矽能新材料有限公司 | Light guide film, production method thereof and light guide device |
| WO2021190114A1 (en) * | 2020-03-24 | 2021-09-30 | 杭州矽能新材料有限公司 | Light guide film, production method therefor and light guide device |
| CN113253382A (en) * | 2021-05-24 | 2021-08-13 | 佘晓峰 | Light guide structure capable of displaying light with various colors |
| CN113253381A (en) * | 2021-05-24 | 2021-08-13 | 佘晓峰 | Light guide structure capable of controlling light emitting position |
| CN113253381B (en) * | 2021-05-24 | 2023-08-25 | 佘晓峰 | Light guide structure capable of controlling luminous position |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103105641B (en) | 2015-09-16 |
| WO2014131290A1 (en) | 2014-09-04 |
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