CN202486341U - Diffusion plate - Google Patents
Diffusion plate Download PDFInfo
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- CN202486341U CN202486341U CN2012200339290U CN201220033929U CN202486341U CN 202486341 U CN202486341 U CN 202486341U CN 2012200339290 U CN2012200339290 U CN 2012200339290U CN 201220033929 U CN201220033929 U CN 201220033929U CN 202486341 U CN202486341 U CN 202486341U
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Abstract
The utility model provides a diffusion plate which comprises at least two diffusion single-layers. Each diffusion single-layer comprises a diffusion particle layer and a refracted light layer arranged above the diffusion particle layer, each refracted light layer comprises at least one protruding microstructure, the direction that a definition light penetrates through the diffusion plate serves as a first direction, and the at least two diffusion single-layers comprise initial diffusion single-layers and wide-angle diffusion single-layers, wherein the initial diffusion single-layers and the wide-angle diffusion single-layers are arranged along the first direction. The wide-angle diffusion single-layers comprise wide-angle protruding microstructures, and the section shape of the wide-angle protruding microstructures is half round. Compared with the prior art, the number of the diffusion single-layers is increased, and the diffusion plate forms multi-level diffusion of incident lights, improves diffusion effect of the incident lights, and simultaneously changes the microstructure shape of the wide-angle diffusion single-layers of emergent lights, thereby improving front viewing angle and further improving lighting effect.
Description
Technical field
The utility model relates to the optical material field, relates in particular to a kind of diffuser plate.
Background technology
In present display device and the light fixture field, in order to obtain evenly soft display effect and illuminating effect, widespread use photodiffusion material and technology, wherein diffuser plate is as disperser utilization commonly used at present extensively.
In the display device; With the LCD is example; Because liquid crystal itself is not luminous, module backlight need be provided for it so that the normal display image of LCD, the light source that then requires module backlight high brightness to be provided and to be evenly distributed; So add diffuser plate so that light is taken in liquid crystal panel uniformly before the light source of the module backlight of being everlasting, thereby improve image quality; And in light fixture, add that light diffusing sheet becomes electric light source into uniform surface light source, thus avoided dazzle discomfort even permanent injury that human eye is caused, to reach higher lighting quality.
Usually, the refraction structure that diffuser plate comprises the diffusion particle layer and is arranged at diffusion particle layer top, the two stack forms the individual layer diffuser plate; Mostly present diffuser plate is the individual layer diffuser plate; Adopt this kind diffuser plate only to accomplish once diffusion, light is not carried out multi-level diffusion, cause light after the diffuser plate diffusion; The visual angle is too small, influences the effect of ray cast simultaneously.
Therefore, be necessary to propose a kind of new diffuser plate and solve the problems referred to above.
The utility model content
The utility model technical matters to be solved is to provide a kind of integrated multilayer diffuser plate.
For solving the problems of the technologies described above, the utility model provides a kind of diffuser plate, and it comprises:
At least two diffusion individual layers, each diffusion individual layer comprise the diffusion particle layer and are arranged at the refraction photosphere of said diffusion particle layer top that said refraction photosphere comprises at least one protrusion microstructure;
The direction of definition light penetration diffuser plate is a first direction, and said at least two diffusion individual layers comprise the initial propagations individual layer and the wide-angle diffusion individual layer of arranging along first direction;
Wherein, said wide-angle diffusion individual layer comprises wide-angle protrusion microstructure, and said wide-angle protrusion microstructure section shape is semicircle.
As the further improvement of the utility model, be provided with air layer between the said adjacent diffusion individual layer.
As the further improvement of the utility model, the thickness of said diffusion individual layer is 1um ~ 2mm.
As the further improvement of the utility model, said wide-angle diffusion individual layer includes only a diffusion individual layer.
As the further improvement of the utility model, said initial propagations individual layer comprises initial protrusion microstructure, and the section shape of said initial protrusion microstructure is the combination in any of triangle or semicircle or non-semicircular arc or above-mentioned three kinds of shapes.
As the further improvement of the utility model, the plan view shape of said each protrusion microstructure is strip or particle shape.
As the further improvement of the utility model, said diffusion particle layer comprises the incidence surface and the exiting surface of mutual correspondence, and said incidence surface and exiting surface are burnishing surface.
As the further improvement of the utility model, said refraction photosphere is fixed in the exiting surface of said diffusion particle layer, and said protrusion microstructure uniformly-spaced is arranged in said exiting surface, and each protrusion microstructure shape of said identical diffusion individual layer is identical.
Compared with prior art, the diffuser plate that the utility model provides has increased the quantity that wherein spreads individual layer, has formed the multi-level diffusion to incident ray, has improved the diffusion effect to incident light; And between adjacent diffusion individual layer, also be provided with air layer, reduced the loss that light transmits between adjacent diffusion individual layer, played brightening effect, improved the light output quality; Simultaneously, changed the microstructure shape of the wide-angle diffusion individual layer of bright dipping, thereby the positive visual angle of having improved diffuser plate further promotes diffuser plate and goes out light effect.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing of the relevant the utility model in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the cut-open view of diffuser plate in first embodiment of the utility model;
Fig. 2 is the cut-open view of diffuser plate in second embodiment of the utility model;
Fig. 3 is the cut-open view of diffuser plate in the 3rd embodiment of the utility model.
Wherein, Reference numeral is:
100, diffuser plate; 10, diffusion individual layer; 11, diffusion particle layer; 12, refraction photosphere; 20, air layer.
Embodiment
Below will combine each embodiment shown in the drawings that the utility model is described in detail.But these embodiment do not limit the utility model, and those of ordinary skill in the art all is included in the protection domain of the utility model according to the conversion on structure, method or the function that these embodiment made.
Ginseng Fig. 1, Fig. 2 and shown in Figure 3; The diffuser plate 100 that the utility model provided is the multilayer diffuser plate; With respect to existing individual layer diffuser plate, it can carry out multi-level diffusion with light, promotes diffusion effect; Improve the visual angle that the microstructure of the diffusion individual layer of exiting surface can effectively improve diffuser plate simultaneously, be lifted out light quality comprehensively.
In the utility model, aforementioned diffuser plate 100 comprises diffusion individual layer 10, and diffusion individual layer 10 comprises diffusion particle layer 11 and is arranged at the refraction photosphere 12 on the diffusion particle layer 11;
Concrete, diffusion individual layer 10 quantity are set at least two.
Wherein, diffusion particle layer 11 comprises base material and incorporates the diffusion particle in the base material, diffusion particle with have different refractive indexes, thereby make diffusion individual layer 10 can spread incident ray.
Concrete, the base material of diffusion particle layer 11 comprises that said base material processed by polystyrene or polycarbonate or polypropylene or polymethylmethacrylate or PEN or polyethylene terephthalate.
Concrete, the diffusion particle of diffusion particle layer 11 comprises the combination in any of polymethylmethacrylate or polystyrene or organosilicon or titania powder or above-mentioned four kinds of materials.
Special, to the quality of base material in the single diffusion particle layer 11, the quality of diffusion particle is 0.1% ~ 10% of a base material quality.
Base material in the aforementioned diffusion particle layer 11, diffusion particle with and relevant proportioning be technology well known to those of ordinary skill in the art, do not do at this and give unnecessary details.
Diffusion individual layer 10 also comprises refraction photosphere 12; It fits on the diffusion particle layer 11; Light gets into refraction photosphere 12 after the diffusion first time through diffusion particle layer 11, because refraction photosphere 12 has and the different refractive index of diffusion particle layer 11 base material; Cooperate the microstructure of refraction photosphere 12 can spread light once more simultaneously, thereby make light comprehensively spread.
Special, the thickness of considering diffuser plate 100 with and applied environment, need the thickness of diffusion individual layer 10 be limited, in the utility model, the thickness of diffusion individual layer 10 is set to 1um ~ 2mm.
Below, in conjunction with 3 embodiment of concrete detailed description of the drawings the utility model:
Join shown in Figure 1ly, among first embodiment of the utility model, diffuser plate 100 comprises: diffusion individual layer 10, and diffusion individual layer 10 comprises diffusion particle layer 11 and is arranged at the refraction photosphere 12 on the said diffusion particle layer 11; And aforementioned diffusion individual layer 10 quantity are set at least two.
Preferably, the quantity of diffusion individual layer 10 is set to 3 or 4 layers in the diffuser plate 100.
Concrete, diffuser plate 100 adopts 3 or 4 layers of aforementioned diffusion individual layer 10 stack and gets, and incident ray spreads more even after the diffusion that obtains 3 or 4 layers of diffusion individual layer 10 successively.
And, also be provided with air layer 20 between the adjacent diffusion individual layer 10, through being set, air layer 20 can reduce incident ray through the consume after a plurality of diffusion individual layers 10 between adjacent diffusion individual layer 10.
The optical cements that are used for bonding optical articles that adopt 3M company between the existing diffuser plate although the optical cement refractive index of 3M company approaches air, in the present embodiment more; The diffuser plate of extruding through one 100; Its air layer 20 is isolated each diffusion individual layer 10, and its air layer 20 can replace the optical cement of 3M fully, when improving diffuser efficiency; Reduced purchase cost, it is thus clear that very great commercial promise is arranged.
In the present embodiment, diffusion particle layer 11 comprises the incidence surface and the exiting surface of mutual correspondence, and incidence surface and exiting surface are burnishing surface.
Special, refraction photosphere 12 is fixed in the exiting surface of diffusion particle layer 11.
Wherein, the fixed form between refraction photosphere 12 and the diffusion particle layer 11 is a technology well known to those of ordinary skill in the art, does not give unnecessary details at this.
Wherein, the plan view shape of each protrusion microstructure is strip or particle shape; The section shape of each protrusion microstructure is the combination in any of triangle or semicircle or non-semicircular arc or above-mentioned three kinds of shapes.
Special, each protrusion microstructure shape is identical, preferred, and in the present embodiment, the protrusion microstructure shape of each diffusion particle layer 11 that diffuser plate 100 is set is identical, produces man-hour to reduce, and enhances productivity.
Simultaneously, the quantity that limits diffusion individual layer 10 is 3 or 4 layers, so that diffuser plate 100 is when having better diffusion, size can be not excessive.
In addition; In other embodiment of the utility model, each protrusion microstructure shape of diffusion particle layer 11 is not required for unanimity, can customize according to concrete requirement; So that the specification of diffuser plate 100 is more flexible, be applicable to concrete working environment and customer demand.
Certainly, among other embodiment of the utility model, also can be directed against specific requirement, the concrete number of customization diffusion individual layer 10.
Diffuser plate 100 in the present embodiment has increased the quantity of its diffusion individual layer 10, has formed the multi-level diffusion to incident ray, has improved the diffusion effect to incident light; And between adjacent diffusion individual layer 10, also be provided with air layer 20, reduced the loss that light transmits between adjacent diffusion individual layer 10, increased the brightness of output light, and then promoted the light output quality.
Special, the light blast 10% ~ 20% that the diffuser plate 100 of present embodiment is exported with respect to the individual layer diffuser plate can be omitted the existing brightness enhancement film that is arranged on the diffuser plate fully.
Especially for the brightness enhancement film of at present common 3M, its purchase cost is higher, adopts the diffuser plate 100 of present embodiment can cancel aforementioned brightness enhancement film, has reduced purchase cost, it is thus clear that very great commercial promise is arranged.
Join shown in Figure 2; Among second embodiment of the utility model; Diffuser plate 100 comprises: at least two diffusion individual layers 10, the refraction photosphere 12 that each diffusion individual layer 10 comprises diffusion particle layer 11 and is arranged at diffusion particle layer top, refraction photosphere 12 comprise at least one protrusion microstructure.
The direction of definition light penetration diffuser plate 100 is a first direction, and aforementioned at least two diffusion individual layers 10 comprise the initial propagations individual layer and the wide-angle diffusion individual layer of arranging along first direction;
Wherein, wide-angle diffusion individual layer comprises wide-angle protrusion microstructure, and wide-angle protrusion microstructure section shape is semicircle.
Through adopting semicircle protrusion microstructure, can the positive visual angle of diffuser plate be promoted to 120 ° from 70 ° with respect to leg-of-mutton protrusion microstructure.
Concrete, the wide-angle diffusion layer by incident ray last diffusion individual layer 10 of process, wide-angle diffusion individual layer includes only a diffusion individual layer 10.
Corresponding, other diffusion individual layers 10 of process all are the initial propagations individual layer before the incident ray.
Similarly, be provided with air layer between the adjacent diffusion individual layer 10, all be provided with air layer 20 between all diffusion individual layers 10 of aforementioned adjacent diffusion individual layer 10 surface diffusion sheets 100.
Through being set, air layer 20 can reduce incident ray through the consume after a plurality of diffusion individual layers 10 between the adjacent vacant gas-bearing formation.
Through being set, air layer 20 can reduce incident ray through the consume after a plurality of diffusion individual layers 10 between adjacent diffusion individual layer 10.
The optical cements that are used for bonding optical articles that adopt 3M company between the existing diffuser plate although the optical cement refractive index of 3M company approaches air, in the present embodiment more; The diffuser plate of extruding through one 100; Its air layer 20 is isolated each diffusion individual layer 10, and its air layer 20 can replace the optical cement of 3M fully, when improving diffuser efficiency; Reduced purchase cost, it is thus clear that very great commercial promise is arranged.
The initial propagations individual layer comprises initial protrusion microstructure, and the section shape of said initial protrusion microstructure is the combination in any of triangle or semicircle or non-semicircular arc or above-mentioned three kinds of shapes.
The plan view shape of each protrusion microstructure is strip or particle shape.
The diffusion particle layer comprises the incidence surface and the exiting surface of mutual correspondence, and incidence surface and exiting surface are burnishing surface.
The refraction photosphere is fixed in the exiting surface of diffusion particle layer, and the protrusion microstructure uniformly-spaced is arranged in exiting surface, and wherein, protrusion microstructure shape is identical produces man-hour to lower for each of identical diffusion individual layer, enhances productivity.
In addition, among other embodiment of the utility model, for each microstructure shape of identical diffuser plate 100 and do not require unanimity, with the various working environments of adaptation that improve diffuser plate 100 and the ability of customer demand.
The diffuser plate 100 that the utility model provides has increased the quantity that wherein spreads individual layer 10, has formed the multi-level diffusion to incident ray, has improved the diffusion effect to incident light; And between adjacent diffusion individual layer 10, also be provided with air layer, reduced the loss that light transmits between adjacent diffusion individual layer 10, played brightening effect, improved the light output quality; Simultaneously, changed the microstructure shape of the wide-angle diffusion individual layer of bright dipping, thereby the positive visual angle of having improved diffuser plate further promotes diffuser plate and goes out light effect.
Ginseng Fig. 1 and shown in Figure 2; The microstructure shape of the diffusion individual layer 10 through the last process of incident ray in the diffuser plate 100 is set; Can effectively regulate and control the positive visual angle of diffuser plate 100, and manufacture process is simple, convenient for carrying out customization production according to customer demand.
Join shown in Figure 3; Among the 3rd embodiment of the utility model; Diffuser plate 100 comprises: diffusion unit, aforementioned diffusion unit comprise diffusion particle layer 11 and are arranged at the refraction photosphere 12 on the diffusion particle layer 11 that diffusion particle layer 11 comprises base material and is arranged at the diffusion particle in the base material;
Wherein, refraction photosphere 12 all is a burnishing surface with the incidence surface and the exiting surface of diffusion particle layer 11;
Special, said diffusion unit quantity is set at least three.
Concrete, diffusion unit is with diffusion individual layer 10, and the incidence surface and the corresponding exiting surface of the diffusion particle layer 11 in the diffusion individual layer 10 all are burnishing surfaces; The refraction photosphere 12 of diffusion individual layer 10 does not comprise the protrusion microstructure, and incidence surface and exiting surface are burnishing surface also, thereby makes diffusion particle layer 11 and refraction photosphere 12 to fit tightly.
Simultaneously, fit tightly to guarantee the Stability Analysis of Structures of diffuser plate 100 between adjacent diffusion particle layer 11 and the refraction photosphere 12.
Wherein, the thickness of diffusion unit is 1um ~ 2mm, and is special, and diffuser plate 100 thickness are fit to various products less than 5mm with the size that guarantees diffuser plate 100.
In sum, the diffuser plate 100 of the utility model has increased the quantity that wherein spreads individual layer 10, has formed the multi-level diffusion to incident ray, has improved the diffusion effect to incident light; And can be provided with whether refraction photosphere 12 is provided with microstructured layers in the diffusion individual layer 10, and the interpolation of follow-up air layer and removal have improved the customization of diffuser plate 100, have improved emitting brightness and visual angle simultaneously; Special, adopt one extrusion molding mode to produce aforementioned diffuser plate 100, its production efficiency is higher, is applicable to large-scale production, and structure is stable more, longer service life, and is easy to maintenance.
Be to be understood that; Though this instructions is described according to embodiment; But be not that each embodiment only comprises an independently technical scheme, this narrating mode of instructions only is for clarity sake, and those skilled in the art should make instructions as a whole; Technical scheme in each embodiment also can form other embodiments that it will be appreciated by those skilled in the art that through appropriate combination.
The listed a series of detailed description of preceding text only is specifying to the feasibility embodiment of the utility model; They are not the protection domain in order to restriction the utility model, allly do not break away from equivalent embodiment or the change that the utility model skill spirit done and all should be included within the protection domain of the utility model.
Claims (8)
1. a diffuser plate is characterized in that, this diffuser plate comprises:
At least two diffusion individual layers, each diffusion individual layer comprise the diffusion particle layer and are arranged at the refraction photosphere of said diffusion particle layer top that said refraction photosphere comprises at least one protrusion microstructure;
The direction of definition light penetration diffuser plate is a first direction, and said at least two diffusion individual layers comprise the initial propagations individual layer and the wide-angle diffusion individual layer of arranging along first direction;
Wherein, said wide-angle diffusion individual layer comprises wide-angle protrusion microstructure, and said wide-angle protrusion microstructure section shape is semicircle.
2. diffuser plate as claimed in claim 1 is characterized in that, is provided with air layer between the said adjacent diffusion individual layer.
3. diffuser plate as claimed in claim 1 is characterized in that, the thickness of said diffusion individual layer is 1um ~ 2mm.
4. diffuser plate as claimed in claim 1 is characterized in that, said wide-angle diffusion individual layer includes only a diffusion individual layer.
5. diffuser plate as claimed in claim 1; It is characterized in that; Said initial propagations individual layer comprises initial protrusion microstructure, and the section shape of said initial protrusion microstructure is the combination in any of triangle or semicircle or non-semicircular arc or above-mentioned three kinds of shapes.
6. diffuser plate as claimed in claim 1 is characterized in that, the plan view shape of said each protrusion microstructure is strip or particle shape.
7. diffuser plate as claimed in claim 1 is characterized in that, said diffusion particle layer comprises the incidence surface and the exiting surface of mutual correspondence, and said incidence surface and exiting surface are burnishing surface.
8. diffuser plate as claimed in claim 7 is characterized in that said refraction photosphere is fixed in the exiting surface of said diffusion particle layer, and said protrusion microstructure uniformly-spaced is arranged in said exiting surface, and each protrusion microstructure shape of said identical diffusion individual layer is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200339290U CN202486341U (en) | 2012-02-03 | 2012-02-03 | Diffusion plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200339290U CN202486341U (en) | 2012-02-03 | 2012-02-03 | Diffusion plate |
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| Publication Number | Publication Date |
|---|---|
| CN202486341U true CN202486341U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200339290U Expired - Lifetime CN202486341U (en) | 2012-02-03 | 2012-02-03 | Diffusion plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245988A (en) * | 2012-02-03 | 2013-08-14 | 苏州拓显光电材料有限公司 | Diffuser plate |
| WO2019109448A1 (en) * | 2017-12-08 | 2019-06-13 | 惠州市华星光电技术有限公司 | Diffuser and bottom lighting backlight module |
| CN113866855A (en) * | 2021-10-23 | 2021-12-31 | 广东瑞捷光电股份有限公司 | Structural diffusion plate and preparation method thereof |
-
2012
- 2012-02-03 CN CN2012200339290U patent/CN202486341U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245988A (en) * | 2012-02-03 | 2013-08-14 | 苏州拓显光电材料有限公司 | Diffuser plate |
| WO2019109448A1 (en) * | 2017-12-08 | 2019-06-13 | 惠州市华星光电技术有限公司 | Diffuser and bottom lighting backlight module |
| US10613381B2 (en) | 2017-12-08 | 2020-04-07 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Diffusion plate and direct-type backlight module |
| CN113866855A (en) * | 2021-10-23 | 2021-12-31 | 广东瑞捷光电股份有限公司 | Structural diffusion plate and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
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| CX01 | Expiry of patent term |