CN103163585A - Compound type light guiding module and manufacturing method thereof - Google Patents
Compound type light guiding module and manufacturing method thereof Download PDFInfo
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- CN103163585A CN103163585A CN2011104057541A CN201110405754A CN103163585A CN 103163585 A CN103163585 A CN 103163585A CN 2011104057541 A CN2011104057541 A CN 2011104057541A CN 201110405754 A CN201110405754 A CN 201110405754A CN 103163585 A CN103163585 A CN 103163585A
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- guide plate
- light guide
- brightness enhancement
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- enhancement layer
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Abstract
The invention provides a compound type light guiding module which comprises a light guiding plate, a diffusion layer and a brightening layer, wherein the light guiding plate, the diffusion layer and the brightening layer are stacked in sequence, the diffusion layer is connected on the light guide plate in an adhesive mode, and the brightening layer is connected on the diffusion layer in an adhesive mode. Scattering points are formed on the surface, opposite to the diffusion layer, of the light guiding plate, the diffusion layer comprises a transparent colloid and scattering particles distributed in the transparent colloid, and a micro-structure used for brightening is formed on the surface, opposite to the diffusion layer, of the brightening layer. According to the compound type light guiding module, the light loss rate of light when the light passes through the light guiding module can be reduced. The invention meanwhile provides a manufacturing method of the light guiding module.
Description
Technical field
The present invention relates to a kind of compound leaded light module and preparation method thereof.
Background technology
At present, general leaded light module comprises a plurality of parts stacked together, as reflector plate, light guide plate, diffuser plate etc.When light is propagated in the leaded light module, because each element in the leaded light module is independent of one another and stacked together, each interelement inevitably can exist gap and air, thereby, even the refractive index of each element is identical, light also can reflect/refraction effect at the interface interelement.If the refractive index of air
, the refractive index of each element of leaded light module
, according to Fresnel (Fresnel) formula, reflectivity
, visible all can have 2.7% light to reflect at every two elements at the interface, can not penetrate and cause damage, thereby cause the light utilization ratio of leaded light module low.
Summary of the invention
In view of this, be necessary to provide a kind of compound leaded light module that reduces the light loss rate and preparation method thereof.
Described compound leaded light module, comprise the light guide plate that stacks gradually, diffusion layer, and brightness enhancement layer, this diffusion layer is adhered on this light guide plate, this brightness enhancement layer is adhered on this diffusion layer, this light guide plate and this diffusion layer are formed with scattering point on opposing surface, this diffusion layer comprises transparent colloid and is distributed in scattering particle in this transparent colloid, is formed with the microstructure for blast on this brightness enhancement layer and this diffusion layer opposing surface.
Described compound leaded light module method for making, comprise step: the transparent colloid that will mix scattering particle is coated on light guide plate, and the brightness enhancement layer film is layed on this transparent colloid; This light guide plate of thermoplastic and this brightness enhancement layer film; And the side of this light guide plate away from this transparent colloid rolled simultaneously with the side of this brightness enhancement layer film away from this transparent colloid, to eliminate the gap between this light guide plate, this transparent colloid, this brightness enhancement layer film, and form scattering point on this light guide plate, form microstructure on this brightness enhancement layer film.
The light guide plate of described leaded light module and preparation method thereof, diffusion layer, brightness enhancement layer bond together, and have eliminated gap and air between each layer, thereby have reduced the light loss of light at each place, bed interface, and have reduced the thickness of whole leaded light module.
Description of drawings
Fig. 1 is the structural representation of the leaded light module of an embodiment of the present invention.
Fig. 2 is the manufacture method schematic diagram of leaded light module in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See also Fig. 1, it has disclosed the leaded light module 100 of an embodiment of the present invention, and this leaded light module 100 comprises reflector plate stacked together 20, light guide plate 30, diffusion layer 40, brightness enhancement layer 50 and diffusion barrier 60.
Reflector plate 20 comprises transparency carrier 21 and is plated on reflectance coating 22 on this transparency carrier 21, and the material of this transparency carrier 21 is for example polyester carbonic acid (PC), and the material of this reflectance coating 22 is for example aluminium or barium sulphate of highly reflective material.This diffusion barrier 60 is transparent membrane, and at this transparent membrane surface-coated diffusion particle 61, the material of this transparent membrane is for example polyethylene terephthalate (PET), and the material of this diffusion particle 61 is for example polystyrene (Polystyrene).Reflector plate 20 and upper diffusion barrier 60 are made and use in mode well known to those skilled in the art, below are not repeated.
This light guide plate 30 is transparent substrate, is formed with a plurality of scattering points 33 on a surface of this light guide plate 30, and in the present embodiment, this scattering point 33 is the scattering point of projection, and in other embodiments, this scattering point 33 also can be the scattering point of depression.This diffusion layer 40 of surface binded that this light guide plate 30 and this scattering point 33 are opposing, this diffusion layer 40 is transparent colloid, is distributed with scattering particle 41 in this colloid.Bonding this brightness enhancement layer 50 on this diffusion layer 40, this brightness enhancement layer 50 is transparent film, this brightness enhancement layer 50 is formed with a plurality of microstructures 52 for blast on the surface away from this diffusion layer 40.In the present embodiment, this microstructure 52 is V-type, and in other embodiments, this microstructure 52 also can be other shapes, and is for example circular-arc.
In the present embodiment, the material of this light guide plate 30 and brightness enhancement layer 50 is polymethylmethacrylate (PMMA), and the transparent colloid of this diffusion layer 40 is silica gel, and the material of the scattering particle 41 of this diffusion layer 40 is polystyrene (Polystyrene).In other embodiments, also can adopt other materials to make said elements, for example this light guide plate 30 and brightness enhancement layer 50 can adopt polyester carbonic acid (PC) or polyethylene terephthalate (PET) to make.
Please refer to Fig. 2, it has disclosed the manufacture method of making above-mentioned leaded light module 100.Need to prove at this, reflecting plate 20, diffusion barrier 60 are independently elements that other elements with leaded light module 100 separate, and its method for making is identical with existing known method, no longer introduces at this.
When making, light guide plate 30 is placed on conveyer 71, will coat light guide plate 30 for the colloid that consists of diffusion layer 40 from glue spreader 72, this colloid is in advance through stirring so that silica gel and full and uniform the mixing of scattering particle 41 fully.The rolling of brightness enhancement layer 50 by rotating shaft 73 that is curled in rotating shaft 73 is layed on the colloid that consists of diffusion layer 40.Heating makes light guide plate 30 and brightness enhancement layer 50 soften, and the temperature that applies is greater than the softening temperature of light guide plate 30 and brightness enhancement layer 50.In the present embodiment, before coating diffusion layer 40 on light guide plate 30, first heating makes light guide plate 30 and brightness enhancement layer 50 soften, and keep heated condition in whole process always, so that light guide plate 30 and brightness enhancement layer 50 keep soft state, heating-up temperature is 130 degrees centigrade to 160 degrees centigrade.In other embodiments, also can first form the early-products that is formed by light guide plate 30, diffusion layer 40, brightness enhancement layer 50, then this early-products is heated.
Then, start conveyer 71, make the early-products that is formed by light guide plate 30, diffusion layer 40, brightness enhancement layer 50 by the gap between the roller 74,75 of two opposing settings.Roller 74 surfaces are formed with the V-type microstructure, and roller 75 surfaces are formed with the depression microstructure.Roller 74,75 rolls, early-products rolled, and with the gap between elimination light guide plate 30, diffusion layer 40, brightness enhancement layer 50, and in brightness enhancement layer 50 surface formation V-type microstructures 52, at the surperficial scattering point 33 that forms of light guide plate 30.The pressure that rolls is that 3.45 MPas (Mpa) are to 6.9 MPas (Mpa).Through rolling early-products after processing procedure through supercooling, curing, then cut by required size, can obtain finished product.
In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included in the present invention's scope required for protection.
Claims (10)
1. compound leaded light module, comprise the light guide plate, diffusion layer and the brightness enhancement layer that stack gradually, it is characterized in that: this diffusion layer is adhered on this light guide plate, this brightness enhancement layer is adhered on this diffusion layer, this light guide plate and this diffusion layer are formed with scattering point on opposing surface, this diffusion layer comprises the transparent colloid layer and is distributed in scattering particle in this transparent colloid layer, is formed with the microstructure for blast on this brightness enhancement layer and this diffusion layer opposing surface.
2. compound leaded light module as claimed in claim 1, it is characterized in that: the rat of opposing this light guide plate of this scattering point, this microstructure are the V-type microstructure.
3. compound leaded light module as claimed in claim 1, it is characterized in that: this compound leaded light module also comprises reflector plate, the stacked side that is provided with this scattering point in this light guide plate of this reflector plate, this reflector plate comprise transparency carrier and the reflectance coating of coating on this transparency carrier.
4. compound leaded light module as claimed in claim 1, it is characterized in that: this compound leaded light module also comprises diffusion barrier, this diffusion barrier is laminated in the side that this brightness enhancement layer is provided with this microstructure, and this diffusion barrier comprises transparent membrane and coats the diffusion particle on this transparent membrane surface.
5. a compound leaded light module method for making, is characterized in that, comprises step:
The transparent colloid that mixes scattering particle is coated on light guide plate, the brightness enhancement layer film is layed on this transparent colloid;
Heating is with softening this light guide plate and this brightness enhancement layer film; And
The side of this light guide plate away from this transparent colloid rolled simultaneously with the side of this brightness enhancement layer film away from this transparent colloid, to eliminate the gap between this light guide plate, this transparent colloid, this brightness enhancement layer film, and the scattering point that forms on this light guide plate, form microstructure on this brightness enhancement layer film.
6. compound leaded light module method for making as claimed in claim 5 is characterized in that: before this compound leaded light module method for making also is included in this transparent colloid is coated this light guide plate, this light guide plate is placed in step on travelling belt.
7. compound leaded light module method for making as claimed in claim 5, it is characterized in that: in the step of this heating, heating-up temperature is greater than the softening temperature of this light guide plate and this brightness enhancement layer film.
8. compound leaded light module method for making method for making as claimed in claim 7, it is characterized in that: the material of this light guide plate and this brightness enhancement layer film is polymethylmethacrylate, the scope of this heating-up temperature is 130 degrees centigrade to 160 degrees centigrade.
9. compound leaded light module method for making method for making as claimed in claim 5, it is characterized in that: in the step that this rolls, this pressure limit that rolls is that 3.45 MPas are to 6.9 MPas.
10. compound leaded light module method for making method for making as claimed in claim 5, it is characterized in that: in the step that this rolls, adopt two each other opposing roller roll, when rolling, these two rollers rotate, and this light guide plate that is superimposed, this transparent colloid, this brightness enhancement layer film are by the gap between these two rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104057541A CN103163585A (en) | 2011-12-08 | 2011-12-08 | Compound type light guiding module and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104057541A CN103163585A (en) | 2011-12-08 | 2011-12-08 | Compound type light guiding module and manufacturing method thereof |
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| CN103163585A true CN103163585A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104057541A Pending CN103163585A (en) | 2011-12-08 | 2011-12-08 | Compound type light guiding module and manufacturing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499853A (en) * | 2013-09-29 | 2014-01-08 | 杭州瑞辉光电科技有限公司 | Light guide plate, planar light emitting device, liquid crystal display device, liquid crystal display terminal equipment and manufacturing method of light guide plate |
| CN104375226A (en) * | 2014-11-09 | 2015-02-25 | 合肥乐凯科技产业有限公司 | Diffusion type brightened reflecting film and backlight device |
| CN107850700A (en) * | 2015-08-05 | 2018-03-27 | 3M创新有限公司 | Optical diffuser film laminates and its manufacture method |
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| CN1752809A (en) * | 2004-09-21 | 2006-03-29 | 庄新烈 | Light guide plate module and its making method |
| CN1873491A (en) * | 2005-06-01 | 2006-12-06 | 群康科技(深圳)有限公司 | Light guiding plate, and backlight module set of using the plate |
| US20070159699A1 (en) * | 2006-01-12 | 2007-07-12 | Wang Jyh H | Diffuser plate with higher light diffusion efficiency and brightness |
| CN101078783A (en) * | 2006-05-25 | 2007-11-28 | 开曼群岛商亚岗科技股份有限公司 | Multi-layer type composite optical film with light-collecting and diffusion function and its production method |
| CN101639585A (en) * | 2009-09-09 | 2010-02-03 | 友达光电股份有限公司 | Composite optical film |
| CN101644788A (en) * | 2008-08-07 | 2010-02-10 | 颖台科技股份有限公司 | Optical membrane structure and manufacturing method thereof |
| CN201434917Y (en) * | 2009-02-09 | 2010-03-31 | 钰玺科技有限公司 | Three-layer light guide structure |
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| CN1752809A (en) * | 2004-09-21 | 2006-03-29 | 庄新烈 | Light guide plate module and its making method |
| CN1873491A (en) * | 2005-06-01 | 2006-12-06 | 群康科技(深圳)有限公司 | Light guiding plate, and backlight module set of using the plate |
| US20070159699A1 (en) * | 2006-01-12 | 2007-07-12 | Wang Jyh H | Diffuser plate with higher light diffusion efficiency and brightness |
| CN101078783A (en) * | 2006-05-25 | 2007-11-28 | 开曼群岛商亚岗科技股份有限公司 | Multi-layer type composite optical film with light-collecting and diffusion function and its production method |
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| CN201434917Y (en) * | 2009-02-09 | 2010-03-31 | 钰玺科技有限公司 | Three-layer light guide structure |
| CN101639585A (en) * | 2009-09-09 | 2010-02-03 | 友达光电股份有限公司 | Composite optical film |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499853A (en) * | 2013-09-29 | 2014-01-08 | 杭州瑞辉光电科技有限公司 | Light guide plate, planar light emitting device, liquid crystal display device, liquid crystal display terminal equipment and manufacturing method of light guide plate |
| CN103499853B (en) * | 2013-09-29 | 2014-06-25 | 杭州瑞辉光电科技有限公司 | Light guide plate, planar light emitting device, liquid crystal display device, liquid crystal display terminal equipment and manufacturing method of light guide plate |
| CN104375226A (en) * | 2014-11-09 | 2015-02-25 | 合肥乐凯科技产业有限公司 | Diffusion type brightened reflecting film and backlight device |
| CN107850700A (en) * | 2015-08-05 | 2018-03-27 | 3M创新有限公司 | Optical diffuser film laminates and its manufacture method |
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Application publication date: 20130619 |
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