CN103105641B - Composite light guide plate and production method thereof - Google Patents
Composite light guide plate and production method thereof Download PDFInfo
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- CN103105641B CN103105641B CN201310060194.XA CN201310060194A CN103105641B CN 103105641 B CN103105641 B CN 103105641B CN 201310060194 A CN201310060194 A CN 201310060194A CN 103105641 B CN103105641 B CN 103105641B
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- light
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- guide plate
- film
- light guide
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Planar Illumination Modules (AREA)
Abstract
A kind of composite light guide plate, include transparency carrier (1), this substrate (1) is fitted with light and draws film (2), the bottom surface of light extraction film (2) is the combinatorial surface of convex surface (3) and concave surface, for the binding face with substrate, the natural transition face of convex surface and concave surface is inclined-plane or arcwall face, for the reflecting surface (5 of light, 6), the width of described convex surface or diameter a=0.005-0.5mm, convex surface and transition face surfaceness are less than R0.05, the height h of reflecting surface is 0.65-2.5 times of land width or diameter a, on reflecting surface, the tangent plane of any point and the angle of substrate top surface are 30 °-80 °.This light guide plate is applied to illumination or luminescence display; the production of this light guide plate, through the selection of baseplate material, substrate manufacture, light draw the selection of membrane material, Mold Making, light draw film making and laminating six steps, has that light efficiency is high, an advantage such as luminance brightness and uniformity coefficient is controlled, self-protection interfacial structure compared to existing technology.
Description
Technical field
The present invention relates to a kind of optical material and production method thereof, be specifically applied to illumination or light-emitting display apparatus and line source and pointolite can be converted into composite light guide plate and the production method thereof of area source.
Background technology
CN102565923 discloses one " composite light guide plate ", be pasted with hyaline membrane under transparency carrier, light guiding points is printed with in the bottom of this hyaline membrane or upper face, the defect of this composite light guide plate is: reflective ink or the astigmatism ink light efficiency of printing light guiding points are not high, two sides bright dipping, reflector need be added in one side, affect light efficiency and increase cost, cannot large-size light-conducting plate be manufactured.
CN101216573 discloses " a kind of combined light guide board and manufacture method " is become with at least one deck flexible light-conducting Film laminated by substrate layer; From light conduction principle, see Figure 15, at wherein one or both sides processing V-shaped groove or the convex-concave surface in outermost two faces of composite bed, when light is totally reflected between whole composite bed two faces, by V-type groove or convex-concave surface diffuse reflection or reflect plane.Its defect has 4 points:
One is two sides bright dipping, need add reflector in one side, affects light efficiency and increases cost.Two are emergent lights is polarizers of big angle scope diffusion, is difficult to control emergent light angle.Three is outside surfaces that its light guiding points is distributed in flexible light-conducting Film laminated light guide plate, easy laying dust and not easily remove clean, affects intensity of illumination, the easy clashing and breaking of light guiding points structure exposed, scratches, and affects result of use and serviceable life.Four is that the transmission range that surjection makes light in plate lengthens, and adds 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 the composite light guide plate different from the guide-lighting mechanism of existing light guide plate and production method thereof that a kind of light efficiency is high, light guide structure can obtain self-protection, the luminance brightness of zones of different is adjustable.
Explain that above-mentioned technical matters adopts following technical scheme: this composite light guide plate, include the transparency carrier that side can enter incident light thoroughly, this substrate is fitted with transparent and the light of flexibility draws film, the bottom surface of light extraction film is the combinatorial surface of convex surface and concave surface, convex surface is the binding face with substrate, naturally the corrugated of crossing of convex surface and concave surface is red of inclined-plane or arc, is the reflecting surface of light.
The width of described convex surface or diameter a are 0.005-0.5mm, convex surface and transition face surfaceness are less than RO.05, the height h of reflecting surface is 0.65-2.5 times of land width or diameter a, and on reflecting surface, the tangent plane of any point and the angle of substrate top surface are 30 °-80 °.
The production method of this composite light guide plate is carried out as follows:
(1) selection of baseplate material: substrate made by organic glass, unorganic glass, PC plate, the PS plate of selecting transmittance to be greater than 90%:
(2) making of substrate: different according to selected material, respectively makes the cambered plate of the smooth flat board of any surface finish or any surface finish by its conventional method;
(3) light draws the selection of membrane material: select transparent rubber or transparent plastic elastic body to be raw material;
(4) light draws the making of film die: adopt ultra-precise optical level processing mode to obtain the roller die mould of stamper mould or coating molding, and the bottom surface structure negative and positive that pressing mold and roller die die surface structure and light draw film are supporting consistent;
(5) light draws the making of film: the different materials selected by step (3), adopt a kind of mould in step (4), compacting or coating or flow casting molding obtain the light that surfaceness is less than R0.05, thickness is 0.05-1mm and draw film:
(6) fit: fitting on the substrate that step (2) is obtained, namely the light extraction film through step (5) is obtained makes this composite light guide plate.
The invention has the beneficial effects as follows:
1. derived after the anaclasis out-of-plane be totally reflected between base plan by the mode of total reflection, light efficiency is high.
2. the shortest path that transmits in a substrate of light, reduces light absorption in a substrate (method of diffusion can strengthen light transmission range in a substrate).
3. light is drawn by one side, has deducted reflecting plate and has decreased light loss.
4. light efficiency is high, and emitting brightness controlled (uniform in light emission or region blast), can make 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.
Accompanying drawing explanation
Fig. 1 is this composite light guide plate (plane) structural representation.
Fig. 2,3,4 is respectively this composite light guiding board plane, convex globoidal, cancave cambered surface light move 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 convex with recessed reflecting surface microstructure schematic diagram.
Figure 11,12,13,14 is light extraction film bottom surface light lead structure four kinds of arrangement mode exemplary plot.
Figure 15 is that the light of documents 2 moves towards analysis chart.
Figure 16 is this composite light guide plate reflectance mechanism schematic diagram.
Embodiment
Below the present invention, structure is implemented and is described in detail with reference to accompanying drawing: see Fig. 1-10, this composite light guide plate, include the transparency carrier 1 that side can enter incident light thoroughly, this substrate 1 is fitted with transparent and the light of flexibility draws film 2, the bottom surface of light extraction film 2 is the combinatorial surface of convex surface 3 and concave surface 4, and convex surface is the binding face with substrate, and the natural transition face of convex surface and concave surface is inclined-plane or arcwall face, for the reflecting surface 5,6 of light
The width of described convex surface 3 or diameter a are 0.005-0.5mm, convex surface and reflecting surface (i.e. transition face) 5,6 surfaceness are less than R0.05, the height h of reflecting surface 5,6 is 0.65-2.5 times of convex surface 3 width or diameter a, and on reflecting surface 5,6, the tangent plane of any point and the angle of substrate top surface are 30 °-80 °.
The production method of this composite light guide plate is carried out as follows:
(1) selection of baseplate material: substrate made by organic glass, unorganic glass, PC plate, the PS plate of selecting transmittance to be greater than 90%; Exquisite, large-area transmittance should >=92%.：
(2) making of substrate: different according to selected material, respectively makes the cambered plate of the smooth flat board of any surface finish or any surface finish by its conventional method;
(3) light draws the selection of membrane material: select transparent rubber or transparent plastic elastic body to be raw material; Select the preferred with silica gel of transparent rubber;
(4) light draws the making of film die: adopt ultra-precise optical level processing mode to obtain the roller die mould of stamper mould or coating molding, and the structure negative and positive that pressing mold and roller die die surface structure and light draw film bottom surface are supporting consistent;
(5) light draws the making of film: the different materials selected by step (3), a kind of mould in employing step (4), suppresses or applies or flow casting molding obtains the light extraction film that surfaceness is less than R0.05, thickness is 0.05-1mm;
(6) fit: fitting on the substrate that step (2) is obtained, namely the light extraction film through step (5) is obtained makes this composite light guide plate.
See Fig. 2, 3, 4, the 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 directive is relative with concave surface 4, it is hole between this minizone and corresponding concave surface 4, the refringence of the air in hole and substrate is apart from large, continue the bottom surface reflexing to substrate, reflex to substrate top surface again and light is drawn on the convex surface (i.e. binding face) 3 of film 2, because substrate and light draw the refractive index close of film, light 8 is refracted on inclined-plane or convex globoidal or cancave cambered surface (i.e. reflecting surface) 5 or 6, then reflected light being led to light draws outside film 2, if for obtaining the extraction light perpendicular to this film 2 end face, then can realize according to the pitch angle of the incident angle adjustment reflecting surface 5 of incident light 7.8, the uniformity coefficient and brightness of drawing light if need regulate, then can draw the density of the convex surface 3 of film bottom surface and convex and 3 realize with the area ratio of concave surface 4 from adjustment light respectively, adjustment uniformity coefficient also needs to follow a principle: the near convex surface distribution of distance incident light 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 arrangement (as shown in figure 11) or for intersecting two linear array (as shown in figure 12) or for regular point-type arrangement (as shown in figure 13) or be irregular point-type arrangement (as shown in figure 14), first two arrangement can enter incident light from the side of substrate 1 or relative both sides, latter two arrangement can enter light from 1-4 side, for intersecting two linear array, if the angle of cut is 90 ° or 90 ° ± 10 °, also light can be entered from 1-4 side.
As can be seen from the light trend of the plane of Fig. 2, the convex globoidal type of Fig. 3 and hollow cabochon three kinds of composite light guide plate of Fig. 4, as long as the light lead point (light lead structure) that light draws film bottom surface meets the requirements, the extraction of light all can be realized.It should be noted that when substrate 1 is for convex or cancave cambered surface, the binding face 3 of end face and bottom surface thereof that the light of fitting on it draws film 2 also must become convex or cancave cambered surface thereupon, but when specifically making, end face and the bottom binding face 3 of whole light extraction film 2 all should make plane, cause is flexible elastic material, and surface is mirror finish, the laminating continuously that the real estate of cambered surface and the light of plane draw film binding face is not difficult.What substrate and light drew film is affixed as minute surface is affixed, and can glue together without tackifier, to reduce costs, to reduce operation and to improve light efficiency.
The light extraction convex surface of film bottom surface that Figure 11-14 display four kinds is different and the arrangement mode of concave surface, this is citing just, parallel line type as Figure 11 arranges, the two linear array of the intersection of Figure 12 etc. can also be the arrangement of discontinuous point-like, should " point " can be square, triangle, polygon etc., point can be equal or unequal with the spacing of point, the area of " point " is also changeable, but can not be greater than the binding face width of restriction and the requirement of diameter a-0.005-0.5mm.
The height h of reflecting surface 5 and 6 be the 0.65-2.5 of the width of convex surface 3 or diameter a doubly, the first is for ensureing that light 8 refraction appears be mapped on face 5 after 3, and the first is prevent because external force makes concave surface 4 touch the end face of substrate 1.See Figure 16.
d＝(e+c)/2
C is the angle of cut that the emergent light determined as required and light draw film end face, and e is generally 60-120 degree.
C, according to actual selection light source, is the angle of cut of refract light and substrate top surface, is generally 0-37 degree.
Thus the scope of d is between 30-80, and d is the angle of cut of reflecting surface 5,6 and substrate top surface, is preferred with 45-55 degree.Refractive power reflection spot to the height f of substrate top surface is: f=h*sinc*sind/sin (d-c), and the height h of reflecting surface 5,6 is: h >=a*sinc*sind/sin (d-c).
This composite light guide plate and prior art CN102565923 " composite light guide plate " have larger difference in structure and method for making, with regard to its Optical Mechanism, also exist following different:
See Figure 15, existing light guide plate technology is wherein one or both sides processing V-shaped groove in outermost two faces of composite bed or convex-concave surface, when light is totally reflected between whole composite bed two faces, by V-type groove or convex-concave surface diffuse reflection or reflect plane.
This composite light guide plate 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 bounce transmission again in composite plate.
Just because of there is above-mentioned difference, this composite light guide plate can embody following beneficial effect naturally: can be derived after the anaclasis out-of-plane be totally reflected between base plan by the mode of total reflection, the shortest path that light transmits in a substrate, reduce light absorption in a substrate.Light is drawn by one side, has deducted reflecting plate and has decreased light loss.It is high that these all embody light efficiency.Emitting brightness controlled (uniform in light emission or region blast), can make large-size light-conducting plate.On the compound interface of light-guiding function district in composite plate, there is the function at self-protection interface, 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. a composite light guide plate, include the transparency carrier (1) that side can enter incident light thoroughly, it is characterized in that the cambered plate that this substrate (1) is the smooth flat board of any surface finish or any surface finish, flexible light substrate being fitted with transparent rubber or transparent plastic elasticity physique draws film (2), the bottom surface of light extraction 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), for the reflecting surface of light, light is drawn film surfaceness and is less than R0.05, thickness is 0.05-1mm.
2. composite light guide plate as claimed in claim 1, it is characterized in that width or the diameter a of 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 0.65-2.5 times of convex surface (3) width or diameter a, and the upper tangent plane of any point of reflecting surface (5,6) and the angle of substrate top surface are 30 °-80 °.
3. composite light guide plate as claimed in 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: substrate made by organic glass, unorganic glass, PC plate, the PS plate of selecting transmittance to be greater than 90%;
(2) making of substrate: different according to selected material, respectively makes the cambered plate of the smooth flat board of any surface finish or any surface finish by its conventional method;
(3) light draws the selection of membrane material: select transparent rubber or transparent plastic elastic body to be raw material;
(4) light draws the making of film die: adopt ultra-precise optical level processing mode to obtain the roller die mould of stamper mould or coating molding, and the bottom surface structure negative and positive that pressing mold and roller die die surface structure and light draw film are supporting consistent;
(5) making of light extraction film: the different materials selected by step (3), adopts a kind of mould in step (4), suppresses or applies or flow casting molding obtains the light extraction film that surfaceness is less than R0.05, thickness is 0.05-1 mm;
(6) fit: fitting on the substrate that step (2) is obtained, the light extraction film through step (5) is obtained realizes continuously fitting, and namely makes this composite light guide plate.
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 |
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| CN201310060194.XA CN103105641B (en) | 2013-02-26 | 2013-02-26 | Composite light guide plate and production method thereof |
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| CN103105641A CN103105641A (en) | 2013-05-15 |
| CN103105641B true CN103105641B (en) | 2015-09-16 |
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| WO (1) | WO2014131290A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105641B (en) * | 2013-02-26 | 2015-09-16 | 佘晓峰 | Composite light guide plate and production method thereof |
| CN103105642B (en) * | 2013-02-26 | 2016-04-13 | 佘晓峰 | Light draws film and production 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 |
| 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 |
| 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 |
| CN111239887B (en) * | 2020-03-24 | 2024-06-14 | 杭州矽能新材料有限公司 | Light guide film, production method thereof and light guide device |
| CN113253382B (en) * | 2021-05-24 | 2023-04-14 | 佘晓峰 | Light guide structure capable of displaying light with various colors |
| CN113253381B (en) * | 2021-05-24 | 2023-08-25 | 佘晓峰 | Light guide structure capable of controlling luminous position |
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| CN1930515A (en) * | 2004-03-18 | 2007-03-14 | 夏普株式会社 | Liquid crystal display panel and liquid crystal display device |
| CN101576683A (en) * | 2008-05-08 | 2009-11-11 | 奇美电子股份有限公司 | Display device |
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| JPH0360507A (en) * | 1989-07-29 | 1991-03-15 | Nippon Dempa Kogyo Co Ltd | Piezoelectric vibrator |
| FR2888948B1 (en) * | 2005-07-20 | 2007-10-12 | Essilor Int | PIXELLIZED TRANSPARENT OPTIC COMPONENT COMPRISING AN ABSORBENT COATING, METHOD FOR PRODUCING THE SAME AND USE THEREOF IN AN OPTICAL ELEMENT |
| CN100419522C (en) * | 2005-08-19 | 2008-09-17 | 鸿富锦精密工业（深圳）有限公司 | Plate of guiding light, and backlight module |
| CN101216573A (en) * | 2008-01-17 | 2008-07-09 | 陈林森 | Combined light guide board and preparation method |
| CN201593727U (en) * | 2009-11-16 | 2010-09-29 | 华映光电股份有限公司 | Side light-entering type backlight module |
| CN101871620B (en) * | 2010-06-07 | 2013-04-10 | 友达光电股份有限公司 | Backlight module and display |
| CN103105641B (en) * | 2013-02-26 | 2015-09-16 | 佘晓峰 | Composite light guide plate and production method thereof |
| CN103105642B (en) * | 2013-02-26 | 2016-04-13 | 佘晓峰 | Light draws film and production method thereof |
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2013
- 2013-02-26 CN CN201310060194.XA patent/CN103105641B/en active Active
- 2013-10-31 WO PCT/CN2013/086295 patent/WO2014131290A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1930515A (en) * | 2004-03-18 | 2007-03-14 | 夏普株式会社 | Liquid crystal display panel and liquid crystal display device |
| CN101576683A (en) * | 2008-05-08 | 2009-11-11 | 奇美电子股份有限公司 | Display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014131290A1 (en) | 2014-09-04 |
| CN103105641A (en) | 2013-05-15 |
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