CN107561607A - A kind of optical function plate - Google Patents
A kind of optical function plate Download PDFInfo
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- CN107561607A CN107561607A CN201610519728.4A CN201610519728A CN107561607A CN 107561607 A CN107561607 A CN 107561607A CN 201610519728 A CN201610519728 A CN 201610519728A CN 107561607 A CN107561607 A CN 107561607A
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Abstract
The present invention discloses a kind of optical function plate, and by optical film and diffusion substrates layer is compound forms, and optical film and diffusion substrates layer are at least provided with one layer, and spaced setting between multilayer optical film layer and multilayer diffusion substrates layer；Described diffusion substrates layer includes：From top to bottom the first thin layer and the second thin layer, by being made by co-extrusion in extruder die between the first thin layer and the second thin layer, and the first thin layer and the second thin layer can be identical or different material；In the upper surface of diffusion substrates layer and/or lower surface formed with bulge-structure, light loss caused by strengthening the screening flaw of the first thin layer by the bulge-structure and reduce by the second thin bed reflection light；Described optical film passes through the compound upper surface for sticking in diffusion substrates layer of UV glue-lines.The present invention can suitably lift light transmittance on the basis of screening flaw effect is reached, and lower the light loss after fitting, and performance is more excellent.
Description
Technical field：
The present invention relates to optical function plate technique field.
Background technology：
The application of optical function plate is started from the 1930s, modern, and optical function plate is widely used in optics
And photoelectron technical field, manufacture various optical instruments.One kind that diffuser plate belongs in optical function plate, diffusion
The characteristics of plate maximum is that very big interference is caused to light, no matter the distribution curve flux of original design is how much to spend, only
Wanting light, it can make beam angle be changed into 160~176 ° through diffuser plate, so from the side, the plate face of light fixture has a layer mist
The sensation of mist, it can prove that beam angle is preferably to be proved to 160~176 ° greatly from this point, the bigger illumination of beam angle
Lower, some can also produce optical filtering, make to have the wavelength of part not penetrate, cause colour cast, such as be carried out on surface
Again the interference of light processing (such as：Frosted, give as security line), light transmittance because the natural phenomena of geometric optics is even more low,
So should be more low better from refractive index for making the base material of diffuser plate, the interference to light will be lower.See
Shown in Fig. 1, conventional use of diffuser plate 2 is typically that homogenous material (such as PS) plus formula or additive are uniform
Melting is extruded by mould after stirring, is a kind of feature board of single layer structure.
Optical function plate is usually used in back light module unit structure, is widely used in optics and photoelectron technical field, manufacture
Various optical instruments, conventional use of optical function plate are that homogenous material (such as PS) plus formula or additive are equal
Melting is extruded by mould after even stirring, and formula or additive are to the optics light transmittance and mist degree of finished product (hiding the flaw)
Influence account for basic effect, the diffuser plate being generally used on direct-type backlight also have optical film (diffusion barrier,
Brightness enhancement film) collocation use, so as to lift brightness or uniformity, station and direct operation people that backlight assembling needs
Member is more.
Its formula for using of optical function plate or additive are to the optics light transmittance and mist degree (hiding the flaw) of finished product
Influence accounts for basic effect, and lifting hides the flaw can reduce light transmittance to a certain extent, and lifting light transmittance is to a certain degree
On can sacrifice hide the flaw.
In order to overcome above mentioned problem, following patent application is proposed.
The content of the invention：
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of optical function plate.
In order to solve the above-mentioned technical problem, present invention employs following technical proposals：A kind of optical function plate, by
Diffusion substrates layer is separately formed or by optical film and diffusion substrates layer is compound forms；And multilayer optical film layer and more
Spaced setting between layer diffusion substrates layer；Described diffusion substrates layer includes：First from top to bottom set
Thin layer and the second thin layer, by being made by co-extrusion in extruder die between the first thin layer and the second thin layer, and first is thin
Layer and the second thin layer can be identical or different material；Formed in the upper surface of diffusion substrates layer and/or lower surface
There is bulge-structure, the screening flaw of the first thin layer is strengthened by the bulge-structure and reduces by the second thin bed reflection light and is made
Into light loss；Described optical film passes through the compound upper surface for sticking in diffusion substrates layer of UV glue-lines.
Furthermore, in above-mentioned technical proposal, described optical film is diffusion barrier, brightness enhancement film, composite membrane
It is a kind of, several or fitting product.
Furthermore, in above-mentioned technical proposal, described bulge-structure is regular or irregular geometry.
Furthermore, in above-mentioned technical proposal, described bulge-structure is that cross section is serrated projection, should
Zigzag projection is uniformly distributed in the first thin layer upper surface and/or the second thin layer lower surface.
Furthermore, in above-mentioned technical proposal, described bulge-structure is that cross section is that semicircle or arc-shaped are convex
Rise, the semicircle or arc-shaped projection are uniformly distributed in the first thin layer upper surface and/or the second thin layer lower surface.
Furthermore, in above-mentioned technical proposal, the first described thin layer and the second thin layer one of them be function
Layer, another is body layer.
Furthermore, in above-mentioned technical proposal, described functional layer Base Material is PMMA (poly- methyl-props
E pioic acid methyl ester), PS (polystyrene), PC (makrolon), PP (polypropylene) or its corresponding copolymerization
The plastic pellet of the relatively low fusing point such as thing, by physics or chemical means by diffusant/particle, ultraviolet suction
Receive one or more of combinations of the formulas such as agent/particle, brightening agent, anti-yellowing agent or functional additive, melting
Extrusion straticulation in rear mold；Body layer be by PMMA (polymethyl methacrylate), PS (polystyrene),
Thin layer made of one of which in PC (makrolon), PP (polypropylene) or its corresponding copolymer.
Furthermore, in above-mentioned technical proposal, described body layer is water white transparency.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art：
1st, diffusion substrates layer of the present invention is made up of double-decker, using modified particle, by physics or
Chemical means are by diffusant/particle, ultraviolet absorber/particle, brightening agent, anti-yellowing agent etc.
One or more of combinations of formula or functional additive, the interior extrusion straticulation of melting rear mold,
Lift mist degree or hide the flaw.
2nd, the first thin layer upper surface and the second thin layer lower surface can do surface micro-structure, i.e. bulge-structure,
Such as V structure, frosted shape are with the screening flaw of enhanced feature plate again, second layer lower surface
Bulge-structure is done, light loss caused by reduce lower surface reflected light；
3rd, the present invention can suitably lift light transmittance on the basis of screening flaw effect is reached, after lowering fitting
Light loss, performance are more excellent.
4th, processing step, lifting effect can be reduced using the backlight composing room for having diffuser plate and optical film
Rate, promote mechanization production
Brief description of the drawings：
Fig. 1-2 is the structural representation of embodiment one in the present invention；
Fig. 3-4 is the structural representation of embodiment two in the present invention；
Fig. 5-6 is the structural representation of embodiment three in the present invention；
Fig. 7-8 is the structural representation of example IV in the present invention.
Embodiment：
With reference to specific embodiments and the drawings, the present invention is further described.
Embodiment one：
As shown in Figure 1, a kind of optical function plate, is made up of diffusion substrates layer 1, described diffusion substrates layer 1
Including：The first thin layer 11 and the second thin layer 12 from top to bottom set, the first thin layer 11 and the second thin layer 12
Between by being made by co-extrusion in extruder die, and the first thin layer 11 and the second thin layer 12 can be identical or different
Material；In the upper surface of diffusion substrates layer 1 and/or lower surface formed with bulge-structure 13, tied by the projection
Structure 13 strengthens the screening flaw of the first thin layer 11 and reduces light loss caused by the reflected light of the second thin layer 12.
First thin layer 11 and the second thin layer 12 are to be co-extruded in mould, it is necessary to more than 2 extruders while work,
First thin layer 11 is different from the material of the second thin layer 12.In the present embodiment, the first thin layer 11 is used as functional layer,
For thickness typically within 100 μm (micron), the present embodiment is set as 90 μm, forms the first thin layer 11
Base Material is PMMA (polymethyl methacrylate), PS (polystyrene), PC (makrolon), PP (poly-
Propylene) or the relatively low fusing point such as its corresponding copolymer plastic pellet, typically using modified particle, lead to
Physics or chemical means are crossed to match somebody with somebody diffusant/particle, ultraviolet absorber/particle, brightening agent, anti-yellowing agent etc.
Side or one or more of combinations of functional additive, the interior extrusion straticulation of melting rear mold, lift mist degree or hide the flaw
Property；Second thin layer 12 is body layer, and thickness typically more than 0.4mm (millimeter), is set in the present embodiment
It is (poly- usually using single plastic particles, PMMA (polymethyl methacrylate), PS for 5mm, the second thin layer 12
Styrene), PC (makrolon), the one of which in PP (polypropylene) or its corresponding copolymer be made
Thin layer, water white transparency, the maximum transmission rate that can be reached using material is excellent；First thin layer 11 and second is thin
The thickness of layer 12 can be adjusted flexibly as needed.
The first above-mentioned thin layer 11 and the material of the second thin layer 12 can more specifically situation and replaced,
To facilitate follow-up secondary operation.Surface micro-structure is done in the upper surface of the first thin layer 11 after co-extrusion in mould,
Exactly increase described bulge-structure 13.
Bulge-structure 13 is regular or irregular geometry, and Fig. 1 relief structures 13 are cross section in saw
Detent projection, the serrate projections are uniformly distributed in the lower surface of the upper surface of the first thin layer 11 and the second thin layer 12,
Pass through the screening flaw of the enhanced feature plate of bulge-structure 13.In addition, bulge-structure 13 is it can also be provided that in Fig. 2
Arc-shaped it is raised.
Light scattering/index ellipsoid maximum after diffuser plate is concentrated in the first thin layer, the road of light scattering
Footpath region shortens, the effect of same diffusion particle, and the mixed light degree in short distance is higher, and hiding the flaw also just has phase
To lifting, extensively using in backlight and illuminating product.
Embodiment two：
As shown in Fig. 3-4, the present embodiment and the difference of embodiment one are：First thin layer 11 is used as body layer,
Second thin layer 12 is used as functional layer, then the first thin layer 11 is by single plastic particles, PMMA (polymethylacrylic acid
Methyl esters), PS (polystyrene), PC (makrolon), in PP (polypropylene) or its corresponding copolymer
One of which made of thin layer, water white transparency is not added with any formula or additive；Second thin layer 12 by base
Plinth material is PMMA (polymethyl methacrylate), PS (polystyrene), PC (makrolon), PP (poly-
Propylene) or the relatively low fusing point such as its corresponding copolymer plastic pellet, typically using modified particle, lead to
Physics or chemical means are crossed to match somebody with somebody diffusant/particle, ultraviolet absorber/particle, brightening agent, anti-yellowing agent etc.
Side or one or more of combinations of functional additive, the interior extrusion straticulation of melting rear mold.
When in use, it is (thin to concentrate on the second thin layer for light scattering/index ellipsoid maximum after optical function plate
Layer) in, the passage zone of light scattering shortens, the effect of same diffusion particle, the mixed light degree in short distance
Higher, hiding the flaw also just has relative lifting, by the optical transport of the first thin layer water white transparency, the zigzag on surface
Structure has certain spotlight effect, lifts front face brightness, can be extensively using in backlight and illuminating product.
Embodiment three：
As shown in Fig. 3-4, a kind of optical function plate, by optical film 2 and diffusion substrates layer 1 is compound forms,
Optical film 2 and diffusion substrates layer 1 are at least provided with one layer, or multilayer, and multilayer optical film layer
Spaced setting between 2 and multilayer diffusion substrates layer 1.In the present embodiment, optical film 2 and diffusion substrates
Layer 1 is disposed as one layer.
Described diffusion substrates layer 1 includes：The first thin layer 11 and the second thin layer 12 from top to bottom set, the
By being made by co-extrusion in extruder die between the thin layer 12 of a thin layer 11 and second, and the first thin layer 11 and second
Thin layer 12 can be identical or different material；In the upper surface of diffusion substrates layer 1 and/or lower surface formed with convex
Structure 13 is played, the screening flaw of the first thin layer 11 is strengthened by the bulge-structure 13 and reduces by the second thin layer 12
Light loss caused by reflected light；Described optical film 2 sticks in diffusion substrates layer by the way that UV glue-lines 3 are compound
1 upper surface.
Specifically, described optical film 2 is a kind of, several or patch of diffusion barrier, brightness enhancement film, composite membrane
The semi-finished product of conjunction product or optical film (PET or resin) are a kind of, several or fitting product, select here
It is brightness enhancement film.First thin layer 11 and the second thin layer 12 are to be co-extruded in mould, it is necessary to which more than 2 extruders are same
When work, the first thin layer 11 is different from the material of the second thin layer 12, and the first thin layer 11 and the second thin layer 12
One of them is functional layer, and another is body layer.
In the present embodiment, the first thin layer 11 is used as functional layer, thickness typically within 100 μm (micron),
The present embodiment is set as 90 μm, and the Base Material for forming the first thin layer 11 is PMMA (poly-methyl methacrylates
Ester), PS (polystyrene), PC (makrolon), the phase such as PP (polypropylene) or its corresponding copolymer
To the plastic pellet compared with low melting point, typically using modified particle, by physics or chemical means by diffusant/
One kind or several of the formulas such as particle, ultraviolet absorber/particle, brightening agent, anti-yellowing agent or functional additive
Kind combination, the interior extrusion straticulation of melting rear mold, lifting mist degree or the screening flaw；Second thin layer 12 is body layer,
Thickness is set as 5mm typically more than 0.4mm (millimeter) in the present embodiment, the second thin layer 12 is usually used
Single plastic particles, PMMA (polymethyl methacrylate), PS (polystyrene), PC (makrolon),
Thin layer made of one of which in PP (polypropylene) or its corresponding copolymer, water white transparency is not added with any
Formula or additive, the maximum transmission rate that can be reached using material is excellent；First thin layer 11 and the second thin layer 12
Thickness can be adjusted flexibly as needed.
The first above-mentioned thin layer 11 and the material of the second thin layer 12 can more specifically situation and replaced,
To facilitate follow-up secondary operation.In mould after co-extrusion, surface micro-structure is done in the upper surface of the first thin layer 11,
Namely increase described bulge-structure 13.
Bulge-structure 13 is regular or irregular geometry, and Fig. 1 relief structures 13 are cross section in saw
Detent projection, the serrate projections are uniformly distributed in the upper surface of the first thin layer 11, and work(is lifted by bulge-structure 13
The screening flaw of energy plate.In addition, the bulge-structure in Fig. 2 is raised for arc-shaped.
Light scattering/index ellipsoid maximum after diffuser plate is concentrated in the first thin layer, the road of light scattering
Footpath region shortens, the effect of same diffusion particle, and the mixed light degree in short distance is higher, and hiding the flaw also just has phase
To lifting；And backlight packaging efficiency can be lifted using said structure, can on the basis of screening flaw effect is reached
Appropriate lifting transmitance, reduces the light loss after fitting, makes to approach with traditional approach in optical property, can promote
Backlight mechanization is assembled, and only once operation is completed, extensively using in backlight and illuminating product.
Example IV：
As shown in Fig. 7-8, the present embodiment and the difference of embodiment one are：First thin layer 11 is main body
Layer, the second thin layer 12 is functional layer.
The thickness of first thin layer 11 is more than 0.4mm, and has thin layer made of single plastic particles, list here
One plastic particles can be for any one in PS, PP, PMMA, PC, the single modeling chosen in the present embodiment
Micelle is PP, and by being made by co-extrusion to thin layer in extruder die, and the thickness of thin layer is 0.6mm, is had good
Light transmittance.
The thickness of first thin layer 11 is more than the second thin layer 12, and the thickness of the second thin layer 12 is within 100 μm, and
Two thin layers 12 are thin layer and functional layer, the Base Material of the second thin layer 12 be PMMA, PS, PC, PP etc. relatively
The plastic pellet of low melting point, typically using modified particle, by physics or chemical means by diffusant/particle,
One or more of combinations of the formulas such as ultraviolet absorber/particle, brightening agent, anti-yellowing agent or functional additive,
Extrusion straticulation in rear mold is melted, mist degree is lifted or hides the flaw；In the present embodiment, the second thin layer from PP with
Diffusant/particle, ultraviolet absorber/particle, brightening agent, anti-yellowing agent combine, thin by being extruded into film
Layer, the thickness of thin layer is 80 μm.
Using the optical function plate made by double-decker, its high transmission rate having been provided with, haze and the screening flaw
Property, in order to further lift its function, form bulge-structure 13 in the upper surface of the first thin layer 11, and by the
The lower surface of two thin layers 12 forms bulge-structure 13.
Described bulge-structure 13 is the horizontal stroke for taking shape in the upper surface of the first thin layer 11 and the lower surface of the second thin layer 12
Section is serrated, and structure or arc-shaped are raised, and laciniation is uniformly arranged in the upper surface of the first thin layer 11.
The upper surface of first thin layer 11 is arranged to cross section and is serrated structure, can play the effect of part optically focused,
Improve optical function plate front face brightness；And the lower surface of the second thin layer 12 is also arranged to laciniation, then can
Light loss caused by enough reducing lower surface reflected light.
When in use, it is (thin to concentrate on the second thin layer for light scattering/index ellipsoid maximum after optical function plate
Layer) in, the passage zone of light scattering shortens, the effect of same diffusion particle, the mixed light degree in short distance
Higher, hiding the flaw also just has relative lifting, by the optical transport of the first thin layer water white transparency, the zigzag on surface
Structure has certain spotlight effect, lifts front face brightness, can be extensively using in backlight and illuminating product.
Certainly, the foregoing is only the present invention specific embodiment, be not to limit the scope of the present invention,
All equivalent change or modifications done according to construction, feature and principle described in scope of the present invention patent, all should be wrapped
Include in scope of the present invention patent.
Claims (8)
- A kind of 1. optical function plate, it is characterised in that：It is separately formed or by optical film by diffusion substrates layer (1) Layer (2) and diffusion substrates layer (1) compound composition；Described diffusion substrates layer (1) includes：The first thin layer (11) from top to bottom set and the second thin layer (12), by being made by co-extrusion in extruder die between the first thin layer (11) and the second thin layer (12), and the A thin layer (11) and the second thin layer (12) can be identical or different material；In diffusion substrates layer (1) Upper surface and/or lower surface strengthen the first thin layer formed with bulge-structure (13) by the bulge-structure (13) (11) the screening flaw and light loss caused by the second thin layer (12) reflected light is reduced；Described optical film (2) passes through the compound upper table for sticking in diffusion substrates layer (1) of UV glue-lines (3) Face.
- A kind of 2. optical function plate according to claim 1, it is characterised in that：Described optical film (2) it is diffusion barrier, a kind of, several or fitting product of brightness enhancement film, composite membrane.
- A kind of 3. optical function plate according to claim 1, it is characterised in that：Described bulge-structure (13) it is regular or irregular geometry.
- A kind of 4. optical function plate according to claim 3, it is characterised in that：Described bulge-structure (13) it is serrated projection for cross section, the zigzag projection is in the first thin layer (11) upper surface and/or the Two thin layers (12) lower surface is uniformly distributed.
- A kind of 5. optical function plate according to claim 3, it is characterised in that：Described bulge-structure (13) it is that cross section is that semicircle or arc-shaped are raised, the semicircle or arc-shaped projection are on the first thin layer (11) Surface and/or the second thin layer (12) lower surface are uniformly distributed.
- A kind of 6. optical function plate according to claim 1, it is characterised in that：The first described thin layer (11) and the second thin layer (12) one of them be functional layer, another is body layer.
- A kind of 7. optical function plate according to claim 6, it is characterised in that：Described functional layer base Plinth material is PMMA (polymethyl methacrylate), PS (polystyrene), PC (makrolon), PP (poly- Propylene) or the relatively low fusing point such as its corresponding copolymer plastic pellet, pass through physics or chemical means By the formulas such as diffusant/particle, ultraviolet absorber/particle, brightening agent, anti-yellowing agent or functional additive One or more combine, extrusion straticulation in melting rear mold；Body layer is by PMMA (poly-methyl methacrylates Ester), PS (polystyrene), PC (makrolon), in PP (polypropylene) or its corresponding copolymer Thin layer made of one of which.
- A kind of 8. optical function plate according to claim 6, it is characterised in that：Described body layer is Water white transparency.
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|---|---|---|---|
| CN201610519728.4A CN107561607A (en) | 2016-07-01 | 2016-07-01 | A kind of optical function plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610519728.4A CN107561607A (en) | 2016-07-01 | 2016-07-01 | A kind of optical function plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109884741A (en) * | 2019-03-05 | 2019-06-14 | 惠州市创亿达新材料有限公司 | It is bonded the multilager base plate and process of brightened type optical function plate |
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