CN109387891A - Light transmission direction controlling piece - Google Patents
Light transmission direction controlling piece Download PDFInfo
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- CN109387891A CN109387891A CN201710674895.0A CN201710674895A CN109387891A CN 109387891 A CN109387891 A CN 109387891A CN 201710674895 A CN201710674895 A CN 201710674895A CN 109387891 A CN109387891 A CN 109387891A
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- light transmission
- transparent resin
- resin layer
- layer
- direction controlling
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The present invention provides a kind of light transmission direction controlling piece, has: the grid layer (1) of light transmission band (2) and photo-shield strip (3) is alternately and repeatedly arranged；The first transparent resin layer (4) in the first face of grid layer (1) is set；The second transparent resin layer (5) in the second face of grid layer (1) is set, and the specific refractivity of the refractive index and the second transparent resin layer (5) of the refractive index of light transmission band (2) and the specific refractivity of the first transparent resin layer (4) and light transmission band (2) is respectively less than 0.1.
Description
Technical field
The present invention relates in a kind of light beam of incidence, only transmission has the light transmission direction control of the light of specific incidence angle
Film-making.More specifically, the present invention relates to a kind of when being set to illumination, display screen of various information display devices etc., can
Realize the light transmission direction controlling piece of narrow viewing angle.
Background technique
(patent document 1) discloses a kind of peep-proof component, and setting is believed in portable information terminal, automatic teller machine etc.
The display screen for ceasing display device, without damaging the identification from display screen front side, it will be able to prevent from left and right sides and right
Surface side is pried through.The peep-proof component forms the three-layer structure by following layer stackups, it may be assumed that light transmission band and photo-shield strip are arranged alternately
Antiglare layer, the translucency being arranged on a surface of the antiglare layer adhered layer and be arranged opposite with the adhered layer one
Photic zone on another surface of the antiglare layer of side.Adhered layer is pasted on the display screen of information display device and uses.
Existing technical literature
Patent document
Patent document 1: No. 3675752 bulletin of Japan's patent
Summary of the invention
Problems to be solved by the invention
The inside by the way that light transmission direction controlling piece (peep-proof component) to be packed into portable information terminal is needed, to improve
The convenience of user.The photic zone having by the peep-proof component of patent document 1 is for the rigidity for improving peep-proof component
Purpose and there is enough thickness, therefore, be not suitable for the purposes for being packed into narrow terminal inner.For slimming purpose and
It is inevitably formed small recessed when the surface of antiglare layer can expose manufacture when removing the photic zone of above-mentioned peep-proof component
It is convex.Since light is by the bumps diffusing reflection, accordingly, there exist haze values to get higher, and cannot clearly recognize through antiglare layer
Image and the problem of cannot clearly recognize antiglare layer itself etc.
If on a display screen by peep-proof component bonding, it will be able to inhibit the diffusing reflection of above-mentioned light, but due to being difficult to
Peep-proof component before having an X-rayed (penetrate and see) bonding, accordingly, there exist be difficult to carry out asking for the quality inspection of peep-proof component
Topic.
In addition, in previous peep-proof component, due to constituting the refractive index of euphotic transparent resin and constituting anti-dazzle
The refractive index of the transparent resin of layer is different, and therefore, there is also cause light transmission to decline because of refractive index difference.
The present invention is to complete to pass through, and it is an object of the present invention to provide with excellent light transmission in view of the above problems
Visually carry out the light transmission direction controlling piece of quality inspection.
The means to solve the problem
[1] a kind of light transmission direction controlling piece, has: being alternately and repeatedly provided with the grid layer of light transmission band and photo-shield strip；
First transparent resin layer in the first face of the grid layer is set；The second transparent tree in the second face of the grid layer is set
The specific refractivity of rouge layer, the refractive index of the light transmission band and first transparent resin layer and the light transmission band
The specific refractivity of refractive index and second transparent resin layer is respectively less than 0.1.
[2] the light transmission direction controlling piece recorded according to [1], wherein the outer surface of first transparent resin layer and institute
The arithmetic average roughness Ra for stating the outer surface of at least one of outer surface of the second transparent resin layer is 0 μm to 3.0 μm.
[3] the light transmission direction controlling piece recorded according to [1], wherein the light transmission band, first transparent resin layer
And second transparent resin layer is formed by silicon rubber.
[4] the light transmission direction controlling piece recorded according to [2], wherein the light transmission band, first transparent resin layer
And second transparent resin layer is formed by silicon rubber.
[5] the light transmission direction controlling piece recorded according to any one of [1] to [4], wherein the thickness of the grid layer is
150 μm to 500 μm, the thickness of first transparent resin layer is 10 μm to 20 μm, and the thickness of second transparent resin layer is
10 μm to 20 μm.
Invention effect
Light transmission direction controlling piece according to the present invention, due to interface between grid layer and first and second transparent resin layer
Interface reflect decline, thus have excellent light transmission.Thereby, it is possible to inhibit under the brightness of set display screen
Drop, even if in the case where lower setting backlight illumination, the display screen that can also be become clear enough.Furthermore it is possible to realize back
The low-power consumption of light.In turn, due to that with excellent light transmission, can be easy to carry out quality inspection by visual observation.Even if
In the case where light transmission direction controlling piece of the invention is realized slimming, these excellent effects can be also given full play to,
Therefore, the inside of information display device can be easily fitted into.
Detailed description of the invention
Fig. 1 is the sectional view for showing an example of light transmission direction controlling piece of the invention.
Fig. 2 is another perspective view for showing light transmission direction controlling piece of the invention.
Description of symbols
1... grid layer；2... light transmission band；3... photo-shield strip；4... the first transparent resin layer；The transparent tree of 4a... first
The outer surface of rouge layer；5... the second transparent resin layer；The outer surface of the second transparent resin layer of 5a...；10... light transmission direction is controlled
Film-making；20... light transmission direction controlling piece；21... the first transparent resin layer；22... the first grid layer；23... third is transparent
Resin layer；24... the second grid layer；25... the second transparent resin layer；26... light transmission band；27... photo-shield strip；28... light
Transmission bands；29... photo-shield strip.
Specific embodiment
As shown in Figure 1, light transmission direction controlling piece 10 of the invention has: being alternately and repeatedly provided with light transmission band 2 and hide
The grid layer 1 of light belt 3；First transparent resin layer 4 in the first face of grid layer 1 is set；Second face of grid layer 1 is set
Second transparent resin layer 5.
Each light transmission band 2 and each photo-shield strip 3 are formed along the thickness direction of grid layer 1.In other words, light transmission band 2 and
Photo-shield strip 3 is alternately and repeatedly arranged in the width direction (the vertical direction with thickness direction) of grid layer 1.In grid layer 1, light
Thickness by the light transmission band 2 being clipped between photo-shield strip 3, along the thickness direction of grid layer 1, i.e., along light transmission direction controlling piece 10
Spend direction transmission.
In light transmission direction controlling piece 10, the first interarea of the first surface bearing thin slice of grid layer 1, the of grid layer 1
Second interarea of two surface bearing thin slices, the first face and the second face are faces opposite each other.
The size of light transmission direction controlling piece 10 is not particularly limited, and can enumerate for example: a length of 1mm in plan view
To 1500mm, width is the size of the rectangle of 1mm to 1500mm or so.It, will be rear for the thickness of light transmission direction controlling piece 10
Face description.
In light transmission direction controlling piece 10, the refractive index of the refractive index of light transmission band 2 and the first transparent resin layer 4 it
Difference and the refractive index of light transmission band 2 and the specific refractivity of the second transparent resin layer 5 are respectively smaller than 0.1.Here, each refraction
The difference of rate is absolute value.
In the present invention, term " refractive index " is the refractive index of the component in a vacuum, refers to absolute index of refraction.The refraction
Rate is measured according to the A method of JIS K 7142:2014 (ISO489:1999) " plastics-refractive index measuring method ".
The specific refractivity of the refractive index of light transmission band 2 and the first transparent resin layer 4 is less than 0.1, and preferably smaller than 0.01, more
It is preferred that substantial difference is zero, decline is reflected at the interface at 4 interface of grid layer 1 and the first transparent resin layer as a result, and light transmission mentions
It is high.Similarly, the specific refractivity of the refractive index of light transmission band 2 and the second transparent resin layer 5 is less than 0.1, and preferably smaller than 0.05,
More preferably less than 0.02, most preferably substantial difference is zero, and the interface at 5 interface of grid layer 1 and the second transparent resin layer is anti-as a result,
Decline is penetrated, light transmission improves.As a result, light transmission direction controlling piece 10 has excellent transmitance.
In the case that the surface of grid layer 1 is exposed in not set transparent resin layer, due to there is light in the exposed surface
Diffusing reflection, accordingly, it is difficult to through grid layer 1 by visual observation confirm constitute grid layer 1 light transmission band 2 and photo-shield strip 3 have rule
The case where then arranging.On the other hand, by the first transparent resin layer 4 of setting and the second transparent resin layer 5, thus saturating through light
It penetrates direction controlling piece 10 to be observed, can confirm that the light transmission band 2 for constituting grid layer 1 and photo-shield strip 3 are regular by visual observation
The case where ground arranges.Thereby, it is possible to be easy to carry out qualitative control.
Preferably, outer surface (surface towards outside) 4a of the first transparent resin layer 4 and the second transparent resin layer 5
The arithmetic average roughness Ra of the outer surface of at least one of outer surface 5a be 0 μm to 3.0 μm, it is further preferred that 0.0 μm extremely
0.5 μm, it is further preferred that, 0.0 μm to 0.2 μm.
If within the above range, which, which has, finally processes same flatness with mirror surface, can further press down
Make the scattering of the light of the outer surface.The first transparent resin layer 4 and the second transparent resin layer 5 are penetrated as a result, confirm structure by visual observation
The case where arranging regularly at the light transmission band 2 and photo-shield strip 3 of grid layer 1 becomes easier to.That is, can be easier
Carry out qualitative control.In turn, the optical characteristics such as the transmitance of light transmission direction controlling piece 10 be can be improved.
In addition, in the present specification, the numberical range of " lower limit value to upper limit value " has other unless otherwise specified
Meaning just refers to the numberical range " more than lower limit value, below upper limit value ".
According to the viewpoint for the transparency for improving light transmission direction controlling piece 10, it is preferred that outside the first transparent resin layer 4
The arithmetic average roughness Ra of the outer surface of both outer surface 5a of surface 4a and the second transparent resin layer 5 is in above-mentioned suitable model
In enclosing.
In the present invention, " arithmetic average roughness Ra " according to JIS B 0601:2013 (ISO4287:1997), " product is several
What technical specification " measurement.
[material of light transmission band]
The material for constituting the light transmission band 2 of grid layer 1 is not particularly limited as long as meeting the relationship of above-mentioned refractive index,
For example, the resin for being suitble to the transparency high.Specifically, only for the light transmission band 2 of grid layer 1, it is preferred that make light along grid
Light transmission (light transmittance) when the thickness direction of layer 1 penetrates is as 75% or more, preferably 85% or more, has height
The resin material of the transparency.In addition, the upper limit value of light transmission is not particularly limited, such as it can be 99.99% or less.As
The resin material can be used for example the transparency high thermoplastic resin or thermosetting resin, can specifically enumerate: cellulose
Resinoid, polyester resin, silicone resin, polystyrene resin, Corvic, acrylic resin, gathers polyolefin resin
Carbonate resin etc..Wherein, preferred silicone resin, in terms of heat resistance, particularly preferred silicon rubber.Silicon rubber can be comprising in addition to
The composition of ingredient other than silicone resin.
It as silicon rubber, such as can enumerate: be blocked by molecule chain end by hydroxyl silicyl or vinylsilyl
Diorganopolysiloxanecompositions and organic peroxide constitute, commonly known as mixing rubber silicone rubber compound；To molecule
In at least 2 vinyl in conjunction with silicon atom diorganopolysiloxanecompositions, in mixed molecules at least 3 with silicon atom knot
The organosilicon rubber of the organic hydrogen polysiloxanes of the hydrogen atom (=SiH combination) of conjunction and platinum group catalyst, so-called addition reaction-type
Glue composition etc..
[material of photo-shield strip]
The material for constituting the photo-shield strip 3 of grid layer 1 is not particularly limited, for example, the material as light transmission band 2, is suitble to
, using the above-mentioned resin enumerated as substrate, pigmentary resin made of the colorants such as pigments or dyes is added to it.It is saturating to constitute light
The resin material of the resin material and the substrate as photo-shield strip 3 of penetrating band 2 may be the same or different, but make light according to easy
The resin material of the good viewpoint of the cementability of transmission bands 2 and photo-shield strip 3, preferably the two is identical.
The tone of photo-shield strip 3 as long as enough light-proofness can be obtained, such as can be enumerated: black, red, yellow, green, blue
Color, light blue etc..The tone and light-proofness of photo-shield strip 3 can be adjusted by the type and additive amount of colorant.Specifically,
Only for the photo-shield strip 3 of grid layer 1, it is preferred that have along the thickness direction irradiation light of grid layer 1 when light transmission be
20% or less, preferably 5% or less such light-proofness.Light transmission can be 0%.Further, since the tone of photo-shield strip is to see
Identified tone when grid layer 1 is examined, it is preferred, therefore, that it is also contemplated that decorative and be designed.
It as the specific example of colorant, can enumerate: carbon black, iron oxide, titanium oxide, yellow ferric oxide, dual-azo yellow, phthalein
The general organic pigment such as ultramarine or inorganic pigment.One kind can be used in colorant, also can be used two or more.In addition,
In the case where without using black pigment, good light-proofness in order to obtain, it is preferred that and use white pigment.
[width of light transmission band and photo-shield strip]
The width (the lateral thickness of Fig. 1) of light transmission band 2 and photo-shield strip 3 can be freely set.The light transmission of grid layer 1
Rate can be adjusted by the ratio of the width of width/photo-shield strip 3 of light transmission band 2.The range at visual angle (visible angle) can be with
It is adjusted by the thickness of the width of light transmission 2 and grid layer 1.
If it is considered that make the good identification of peep-proof and display screen and deposit, then the width of light transmission band 2 preferably 50 to 200
μm, more preferable 100 to 150 μm.In addition, preferably 1 to 50 μm of the width of photo-shield strip 3, more preferable 10 to 30 μm.If by each width
It adjusts to above range, then the light transmission direction controlling piece 10 of such as 80% or more light transmission, 30 to 120 ° of visual angle can be obtained.
Ratio represented by width with width/light transmission 2 of photo-shield strip 3 more preferably exists preferably 0.005 to 1
0.06 to 0.3.
[material of transparent resin layer]
The material of first transparent resin layer 4 and the second transparent resin layer 5 does not have as long as meeting the relationship of above-mentioned refractive index
It is particularly limited to, for example, above-mentioned resin is suitable as the material of light transmission band 2.Preferably, the thickness side of each transparent resin layer
To material of the light transmission 75% or more, it is further preferred that material of the light transmission 85% or more.The light transmission
The upper limit be not particularly limited, such as can be set to 99.99% or less.
As the material of the transparent resin layer, specifically, can for example enumerate: vitamins resin, polyolefins
Resin (especially cyclic olefin polymer), polyester resin, silicone resin, polystyrene resin, Corvic, propylene tree
Rouge, polycarbonate resin etc..As suitable silicon rubber, the example in above-mentioned light transmission band can be enumerated.
Among above-mentioned, it is preferred that more than the thermoplastic resins such as polycarbonate or PET (refractive index=1.59 to 1.60)
Close to the refractive index (1.0003) of air, and the light transmission reflected by interface the few silicone resin of loss (refractive index=
1.43), in terms of heat resistance, more preferably silicon rubber (refractive index=1.40 to 1.43).If transparent resin layer 4,5 is silicon
Rubber, then the close property of outer surface 4a, 5a of transparent resin layer can significantly improve and (can bring gluing sense), therefore, can make
Transparent resin layer is tightly attached to the surface of display screen, so as to be easy to set up light transmission direction controlling piece 10.
The resin of each transparent resin layer is constituted, it as needed, can be with for improving weatherability, improving the purpose of aesthetic appearance
Well known additive containing the resin films such as ultraviolet absorbing agent, infrared absorbent, colorant field.
The material of the material of first transparent resin layer 4 and the second transparent resin layer 5 may be the same or different, but root
According to the viewpoint for the relationship for readily satisfying above-mentioned refractive index, preferably material is identical.In addition, according to identical viewpoint, more preferably
, the material of the light transmission band 2 of the material and grid layer 1 of the first transparent resin layer 4 and the second transparent resin layer 5 is identical.
[thickness of each layer]
It is preferred that the thickness of grid layer 1 is 100 μm to 5000 μm, more preferably 150 μm to 1000 μm, further preferred
It is 150 μm to 500 μm.If the thickness of grid layer 1 becomes easy in above range, the control of visual angle (visible angle).
The thickness of first transparent resin layer 4 and the second transparent resin layer 5 is respectively independent, preferably 1 μm to 100 μm, more excellent
It is selected as 5 μm to 50 μm, further preferably 10 μm to 20 μm.If the thickness of the first transparent resin layer 4 and the second transparent resin layer 5
Degree within the above range, then can obtain the rigidity of light transmission direction controlling piece 10 and the balance of slimming respectively.
It is preferred that the aggregate thickness of grid layer 1, the first transparent resin layer 4 and the second transparent resin layer 5 is 100 μm to 5200 μ
M, more preferably 150 μm to 1200 μm, further preferably 200 μm to 700 μm.
If the aggregate thickness of each layer, more than the lower limit value of above range, the rigidity of light transmission direction controlling piece 10 increases
Add, operability when being arranged near the display screen of information display device improves, and the control of visual angle (visible angle) becomes
It must be easy.
If the aggregate thickness of each layer in the upper limit value of above range hereinafter, if light transmission direction controlling piece 10 slimming
It can sufficiently realize, the inside for being packed into information display device becomes easy.
In addition, in the present specification, " thickness " is the section that object is observed and measured using microscope, the thickness at measurement 5
And average value is carried out to it.
[arbitrary transparent component]
It can be at least one of the outer surface 5a of the outer surface 4a and the second transparent resin layer 5 of the first transparent resin layer 4
The transparent components such as arbitrary hyaline layer, transparent membrane are set, for example, it is known that adhesive layer, adhesive layer, transparent membrane, screening glass
Deng.
It as the material of the adhesive layer, such as can enumerate: elastomer class adhesive, propylene class adhesive, polyurethanes
Adhesive, rubber adhesive etc..As the elastomer class adhesive, such as can enumerate comprising silicon rubber, Silica hydrogel, poly- ammonia
The adhesive of ester rubber, polyurethane gle etc..When using elastomer class adhesive, to improve its transparency, preferably in gluing
The surface of layer carries out well known mirror finish.
According to making the optical characteristics of light transmission direction controlling piece 10 become excellent viewpoint, preferably above-mentioned any hyaline layer,
The refractive index and light transmission band 2 of the transparent components such as transparent membrane, the first transparent resin layer 4, the second transparent resin layer 5 each structure
At the specific refractivity of material less than 0.1, more preferably less than 0.02, substantially preferably zero.
In addition, making constructed by lamellae become simple according to making the optical characteristics of light transmission direction controlling piece 10 become excellent
Viewpoint, it is preferred that other transparent components are set in the outer surface of the first transparent resin layer 4 and the second transparent resin layer 5.
[manufacturing method of light transmission direction controlling piece]
The grid layer 1 for constituting light transmission direction controlling piece 10 can for example be manufactured by following methods.Firstly, alternately laminated
It first thin slice of multiple required thicknesses being made of the constituent material of light transmission band 2 and is made of the constituent material of photo-shield strip 3
Second thin slice of multiple required thicknesses carries out heating pressurization to it, to form the block as made of these multiple sheet one.
Next, obtaining grid layer 1 by being sliced on the truncation surface perpendicular to sheet surface to block.Slice
When thickness (slice width) be equivalent to the thickness of grid layer 1.By on relative to the inclined face of sheet surface to block into
Row slice, so as to adjust surface and the angle that is constituted of photo-shield strip 3 of grid layer 1.
Grid layer 1 and each transparent resin layer 4,5 is laminated, becomes integrated method and is not particularly limited, it can be appropriate
Use well known method.
As an example, it can enumerate: the first transparent resin layer 4 is formed by the coated on one side in grid layer 1
Material, and it is solidified, thus the method for forming the first transparent resin layer 4.It, can be in grid layer using same method
1 the second face forms the second transparent resin layer 5.
By stacking grid layer 1 and each transparent resin layer 4,5, integrated laminated body is made to be formed as required shape, from
And light transmission direction controlling piece 10 can be obtained.The flat shape of light transmission direction controlling piece 10 is not particularly limited, and suitably adopts
It is matched with shapes such as rectangle, polygon, circle, ellipses with the shape of set display screen.
It is illustrated the case where among the above, there is one layer of grid layer to light transmission direction controlling piece of the invention.This
The light transmission direction controlling piece of invention can also have two layers of grid layer.Hereinafter, referring to Fig. 2, to being laminated with two layers of grid layer
The structure of light transmission direction controlling piece 20 is illustrated.
Fig. 2 is the perspective view for amplifying a part of light transmission direction controlling piece 20 and schematically showing.In Fig. 2, if
The thickness direction of light transmission direction controlling piece 20 is Z-direction, and into the thin slice 20, the light source side of incident light is the side Z1, through this
The irradiation side (identification side) that the light emission of thin slice 20 goes out is the side Z2.In addition, setting respectively mutually perpendicular in the face vertical with Z-direction
Both direction is X-direction, Y-direction.
The first transparent resin layer 21, is laminated in a thickness direction, from the side Z1 in light transmission direction controlling piece 20 in sequence
One grid layer 22, third transparent resin layer 23, the second grid layer 24 and the second transparent resin layer 25, to be formed integral with one another
Change.
The surface (the first face) of the side Z1 of the first grid layer 22, the second transparent resin layer is arranged in first transparent resin layer 21
25 are arranged in the surface (the second face) of the side Z2 of the second grid layer 24, and the first grid layer 22 is arranged in third transparent resin layer 23
The surface (the second face) of the side Z2, i.e., on the surface (the first face) of the side Z1 of the second grid layer 24.
The integral planar shape of light transmission direction controlling piece in X-Y plane (face vertical with Z-direction) is such as rectangle,
But it can be suitably changed according to the shape at set place.
In light transmission direction controlling piece 20, the refractive index of the refractive index of light transmission band 26 and the first transparent resin layer 22 it
Difference, specific refractivity, third transparent resin layer 23 and the light transmission of the refractive index of light transmission band 26 and third transparent resin layer 23
Specific refractivity with 28 specific refractivity and the refractive index of light transmission band 28 and the second transparent resin layer 25 is respectively smaller than
0.1.Here, each specific refractivity is absolute value.
In the first grid layer 22, light transmission band 26 and photo-shield strip 27 are in the Y direction alternately and repeatedly.Light transmission band 26 and screening
Light belt 27 is to extend in X direction band-like, and the width in its Y-direction is uniform and constant respectively.Multiple light transmission bands
26 is of same size each other, and multiple photo-shield strips 27 are of same size each other.
In the second grid layer 24, light transmission band 28 and photo-shield strip 29 are in the X direction alternately and repeatedly.Light transmission band 28 and screening
Light belt 29 is along the band-like of Y-direction extension, and the width in its X-direction is uniform and constant respectively.Multiple light transmission bands
28 is of same size each other, and multiple photo-shield strips 29 are of same size each other.
In light transmission direction controlling piece 20 shown in Fig. 2, by the photo-shield strip of each grid layers 22,24 of two layer stackups
It is each other in about 90 ° when angle is arranged to overlook view.Here, above-mentioned angle can be the angle other than 90 °, it is also possible to from 0
Any angle selected to 90 °.The light transmission band of the thickness and each grid layer of first grid layer 22 and the second grid layer 24 and screening
The thickness of light belt is independently set, can be mutually the same, can also be different.
The light transmission direction controlling piece 20 of Fig. 2 is to be overlapped into two light transmission direction controlling pieces 10 of Fig. 1 two layers, upper
The composition of third transparent resin layer 23 is shared on each light transmission direction controlling piece 10 of side and downside.Due to each grid layer 22,
24 and each transparent resin layer 21,23,25 specific refractivity as described above, the therefore interface of each grid layer and each transparent resin layer
Interface reflect decline, light transmission improve.As a result, light transmission direction controlling piece 20 has excellent transmitance.In turn,
In light transmission direction controlling piece 20, the control of the first grid layer 22 controls in X direction along the visual angle of Y-direction, the second grid layer 24
Visual angle therefore can control the visual angle of both direction simultaneously by a light transmission direction controlling piece 20.
The manufacturing method of light transmission direction controlling piece 20, as long as be laminated each grid layer 22,24 and each transparent resin layer 21,
23,25, and make its integrated method, just it is not particularly limited.For example, passing through the coated on one side shape in the first grid layer 22
At the material of the first transparent resin layer 21, and it is solidified, to form the first transparent resin layer 21.Hereafter, first
Second face of grid layer 22 is coated with the curable material to form third transparent resin layer 23, loads on the film before being fully cured
Second grid layer 24, makes the curing of coating.Thereby, it is possible to form third transparent resin layer 23, and by the transparent tree of third
Rouge layer 23 is bonded the first grid layer 22 and the second grid layer 24.Next, in the same manner as the formation of the first transparent resin layer 21,
Second face of the second grid layer 24 forms the second transparent resin layer 25, so as to obtain light transmission direction controlling piece 20.
[use of light transmission direction controlling piece]
Near the display screen of information display device, by the way that the control of light transmission direction is arranged in a manner of covering the display screen
Film-making 10, so as to prevent so-called pry through.It as setting method, such as can enumerate: make the light transmission for being configured to rectangle
The outer surface 4a of first transparent resin layer 4 of direction controlling piece 10 or the outer surface 5a of the second transparent resin layer 5 are tightly attached to composition
The setting method of the transparent substrate of the display screen of information display device.Light transmission direction controlling piece 10 can be set in the outer of device
Surface also can be set in the inside of device with being exposed to external state setting to be difficult to the state setting from outside identification.
In the case where light transmission direction controlling piece 10 is packed into the inside of information display device, such as it is preferably, the first transparent resin
The outer surface 4a of layer 4 is close to and is fixed on the transparent substrate of the display screen inside constituent apparatus, the second transparent resin layer 5
Outer surface 5a is close to and is fixed on the transparent substrate of outer surface (a part of cabinet) of constituent apparatus.That is, it is preferred that
, it is separated from each other possessed by the information display device and between two opposed transparent substrates, with what is be close to and clipped
Light transmission direction controlling piece 10 is arranged in state.When so arranged, since air layer does not intervene two of information display device thoroughly
Between bright substrate and the transparent resin layer 4,5 of light transmission direction controlling piece 10, therefore, it is able to suppress the decline of light transmission.
The extending direction and display mask of the light transmission band 2 (and photo-shield strip 3) of the light transmission direction controlling piece 10 of setting
The side of frame can be parallel, can also be not parallel.For the generation for preventing Moire fringe, the extending direction of light transmission band 2 can also be made
(can be with drift angle) be tilted relative to display frame.
More than, as the method for using light transmission direction controlling piece of the invention, to the feelings of light transmission direction controlling piece 10
The case where condition is illustrated, light transmission direction controlling piece 20 can also be used in the same manner with above-mentioned.
[embodiment]
It is exemplified below embodiment, but the present invention is not limited by these embodiments.
[embodiment 1]
Light transmission direction controlling piece 10 shown in FIG. 1 is manufactured.
Firstly, preparation is by transparent silicone rubber (the Shin-Etsu Chemial Co., Ltd's manufacture, commodity that refractive index is about 1.43
Name: KE-153-U) material with a thickness of 125 μm of the first thin slice as light transmission band 2 that constitutes.
In addition, preparing by 100 mass parts transparent silicone rubbers (Shin-Etsu Chemial Co., Ltd's manufacture, trade name: KE-
153-U) it is added to the material with a thickness of 10 μm of the second thin slice as photo-shield strip 3 that the material of 15 mass parts carbon blacks is constituted.
Multiple alternately laminated first thin slices and multiple second thin slices, and it is heated, vulcanized and is pressurizeed, thus shape
At making block made of these multiple sheet one.
By the way that block to be cut into 310 μm of thickness of thin slice in the truncation surface vertical with sheet surface, so that grid be made
Layer 1.
It is coarse since the surface of grid layer 1 is sliced processing, thus the diffusing reflection of light can be generated on surface, it appears that mould
It pastes unclear.Accordingly, it is difficult to observe through individual grid layer 1, light transmission band 2 and photo-shield strip 3 thus can not be confirmed by visual observation
Whether arrange regularly.
Next, using screen process press on the surface for the PET film for being carried out mirror finish with about 20 μm of thickness
Liquid silicon rubber (manufacture of company, Shin-Etsu Chemial Co., Ltd, trade name: KE- of degree coating refractive index about 1.43
1987), the coated face is positioned in the first face of grid layer 1, and heating bonding by Vulcanization has been carried out to it.Hereafter, pass through removing
PET film, so as to form the first transparent resin layer 4 being made of silicon rubber.By the same method, the of grid layer 1
Dihedron is at the second transparent resin layer 5 being made of silicon rubber, to obtain light transmission direction controlling piece 10.
Through the light transmission direction controlling piece 10 before removing PET film visually to be observed, grid layer 1 is constituted
Light transmission band 2 and photo-shield strip 3 arrange regularly, can easily verify that this is that do not have defective good merchantable brand.
In addition, can easily verify that by visual observation when existing defects and be irregularly distributed stain or white point.
It is measured in removing using surfagauge (Kosaka Laboratory Ltd.'s manufacture, trade name: SE600)
State the arithmetic mean of instantaneous value Ra of the outer surface of each transparent resin layer 4,5 of light transmission direction controlling piece 10 obtained from PET film, two
A surface Ra is 0.1 μm, is all same smooth mirror surface with the surface for the PET film for implementing mirror finish.
Light transmission direction is measured using mist degree instrument (Japanese electricity Shi Industrial Co., Ltd manufacture, trade name: NDH2000) to control
The transmitance of film-making 10, full light transmittance are 80%, mist degree 3.Here, mist degree is by formula " mist degree (%)=Td/
What Tt × 100 " was found out.In formula, Td indicates diffused transmission rate, and Tt indicates full light transmittance.
The visual angle of light transmission direction controlling piece 10 is relative to the extended light transmission band 2 and photo-shield strip 3 for having grid layer 1
The vertical plane of length direction on, about 65 °.
[embodiment 2]
Other than the PET film for using asperities to process, similarly to Example 1, light transmission direction controlling piece has been made
10’。
Through the light transmission direction controlling piece 10 ' before removing PET film visually to be observed, grid layer 1 is constituted
Light transmission band 2 and photo-shield strip 3 arrange regularly, can easily verify that this is that do not have defective good merchantable brand.
In addition, can easily verify that by visual observation when existing defects and be irregularly distributed stain or white point.
Similarly to Example 1, to the light transmission direction controlling piece 10 ' for removing embodiment 2 obtained from above-mentioned PET film
The arithmetic average roughness Ra of outer surface of each transparent resin layer 4,5, transmitance, mist degree, visual angle measured, Ra=
2.6 μm, full light transmittance=73%, mist degree=41, visual angle=about 65 °.Compared with Example 1, haze value is got higher, Quan Guang
The decline of line transmissivity.
[embodiment 3]
Other than using and the PET film of mirror finish is not carried out, the control of light transmission direction has been made similarly to Example 1
Film-making 10 ".
Through the light transmission direction controlling piece 10 " before removing PET film visually to be observed, grid layer 1 is constituted
Light transmission band 2 and photo-shield strip 3 arrange regularly, can easily verify that this is that do not have defective good merchantable brand.
In addition, can easily verify that by visual observation when existing defects and be irregularly distributed stain or white point.
Similarly to Example 1, to the light transmission direction controlling piece 10 " for removing embodiment 3 obtained from above-mentioned PET film
The arithmetic average roughness Ra of outer surface of each transparent resin layer 4,5, transmitance, mist degree, visual angle measured, Ra=
0.2 μm, full light transmittance=78%, mist degree=6, visual angle=about 65 °.
[comparative example 1]
In the two-sided epoxy adhesive (refraction for being respectively coated 10 μm of thickness of the grid layer 1 made by embodiment 1
Rate: it about 1.55), by the adhesive layer in each face, is bonded respectively and 30 μm of thickness of mirror finish was implemented to outer surface
Polycarbonate film (refractive index: about 1.58).
By the above process, the light transmission direction controlling piece of comparative example is obtained, in two-sided each face of grid layer 1
It is provided with adhesive layer and polycarbonate film.
Through in the two-sided above-mentioned light transmission direction controlling piece for having polycarbonate film and visually to be observed, structure
It is arranged regularly at the light transmission band 2 and photo-shield strip 3 of grid layer 1, can easily verify that this is that do not have defective good merchantable brand.
In addition, can easily verify that by visual observation when existing defects and be irregularly distributed stain or white point.
However, as shown in following result, if compared with the light transmission direction controlling piece 10 of embodiment 1, optical characteristics
It is deteriorated.As its reason, it may be considered that be grid layer 1, adhesive layer, polycarbonate film each interface produce it is big
The reason of interface reflection.
Similarly to Example 1, to the outer surface of each polycarbonate film of the light transmission direction controlling piece of comparative example 1
Arithmetic average roughness Ra, transmitance, mist degree, visual angle are measured, and Ra=0.1 μm, full light transmittance=77%, mist
Spend=6, visual angle=about 65 °.
Compared with Example 1, haze value is got higher, full light transmittance decline.
[comparative example 2]
In addition to the polycarbonate film for using asperities to process (refractive index: other than about 1.58), is made in the same manner as comparative example 1
Light transmission direction controlling piece is made.
Through in the two-sided above-mentioned light transmission direction controlling piece for having polycarbonate film and visually to be observed, structure
It is arranged regularly at the light transmission band 2 and photo-shield strip 3 of grid layer 1, can easily verify that this is that do not have defective good merchantable brand.
In addition, can easily verify that by visual observation when existing defects and be irregularly distributed stain or white point.
However, as shown in the result of table 1, if compared with the light transmission direction controlling piece 10 of embodiment 1, optical characteristics
It is deteriorated.As its reason, it may be considered that be grid layer 1, adhesive layer, polycarbonate film each interface produce it is big
The reason of interface reflection.
Hereinafter, taking passages the result for showing embodiment 1 to 3 and comparative example 1 to 2.In table 1, " specific refractivity ", in embodiment
In refer to the difference of the refractive index (1.43) of light transmission band and the refractive index (1.43) of the first transparent resin layer, refer in a comparative example
The difference of the refractive index (1.55) of the refractive index (1.43) and epoxy adhesive of light transmission band.In addition, " Ra " is in embodiment
Refer to the arithmetic average roughness of the outer surface of the first transparent resin layer, refers to the outer surface of polycarbonate film in a comparative example
Arithmetic average roughness.
[table 1]
| Specific refractivity | Ra(μm) | Full light transmittance (%) | Mist degree | |
| Embodiment 1 | 0 | 0.1 | 80 | 3 |
| Embodiment 2 | 0 | 2.6 | 73 | 41 |
| Embodiment 3 | 0 | 0.2 | 78 | 6 |
| Comparative example 1 | 0.12 | 0.1 | 77 | 6 |
| Comparative example 2 | 0.12 | 2.2 | 71 | 38 |
Show that the arithmetic average roughness Ra of the outer surface of light transmission direction controlling piece is lower according to the result of table 1, optics
Characteristic more improves.In turn, according to the identical embodiment 1 of Ra and comparative example 1 the result shows that, if specific refractivity less than 0.1,
Then optical characteristics can improve.
More than, by specific embodiment, the present invention is described, but unquestionably, technical scope of the invention is not
It is limited by range illustrated in the above embodiments.Those skilled in the art know clearly, can carry out to above-described embodiment
Numerous variations or improvement.In addition, it is therefore apparent that according to the record of scope of the claims, carried out such change or improvement
Mode is also included in the technical scope of the present invention.
Industrial utilizability
Light transmission direction controlling piece of the invention, such as can be arranged on the display screen of various information display devices and make
To prevent the thin slice pried through from using, or it is mounted in lighting device or sensor device and is used as optical filter.
Claims (5)
1. a kind of light transmission direction controlling piece, has:
Grid layer is alternately and repeatedly provided with light transmission band and photo-shield strip；
The first face of the grid layer is arranged in first transparent resin layer；And
The second face of the grid layer is arranged in second transparent resin layer,
The folding of the specific refractivity and the light transmission band of the refractive index of the light transmission band and first transparent resin layer
The specific refractivity for penetrating rate and second transparent resin layer is respectively smaller than 0.1.
2. light transmission direction controlling piece according to claim 1, wherein
The arithmetic average roughness of the outer surface of at least one of first transparent resin layer and second transparent resin layer
Ra is 0 μm to 3.0 μm.
3. light transmission direction controlling piece according to claim 1, wherein
The light transmission band, first transparent resin layer and second transparent resin layer are formed by silicon rubber.
4. light transmission direction controlling piece according to claim 2, wherein
The light transmission band, first transparent resin layer and second transparent resin layer are formed by silicon rubber.
5. light transmission direction controlling piece according to any one of claim 1 to 4, wherein
The thickness of the grid layer is 150 μm to 500 μm, and the thickness of first transparent resin layer is 10 μm to 20 μm, described
The thickness of second transparent resin layer is 10 μm to 20 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710674895.0A CN109387891A (en) | 2017-08-09 | 2017-08-09 | Light transmission direction controlling piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710674895.0A CN109387891A (en) | 2017-08-09 | 2017-08-09 | Light transmission direction controlling piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109387891A true CN109387891A (en) | 2019-02-26 |
Family
ID=65414118
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710674895.0A Pending CN109387891A (en) | 2017-08-09 | 2017-08-09 | Light transmission direction controlling piece |
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| Country | Link |
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| CN (1) | CN109387891A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111290056A (en) * | 2020-03-19 | 2020-06-16 | 京东方科技集团股份有限公司 | Peep-proof film, preparation method thereof and display panel |
| CN117706822A (en) * | 2024-02-06 | 2024-03-15 | 惠科股份有限公司 | Display panel and display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006337837A (en) * | 2005-06-03 | 2006-12-14 | Shin Etsu Polymer Co Ltd | Light emitting direction controlling film |
| JP2007072239A (en) * | 2005-09-08 | 2007-03-22 | Shin Etsu Polymer Co Ltd | Viewing angle controlling element |
| JP2007212507A (en) * | 2006-02-07 | 2007-08-23 | Shin Etsu Polymer Co Ltd | Peep prevention object |
| CN102289017A (en) * | 2010-06-16 | 2011-12-21 | 索尼公司 | Optical body, window member, building fitting, and solar shading device |
| CN104090378A (en) * | 2014-07-11 | 2014-10-08 | 京东方科技集团股份有限公司 | Peeping-resistant device and method |
| CN210072116U (en) * | 2016-11-29 | 2020-02-14 | 信越聚合物株式会社 | Louvered film |
-
2017
- 2017-08-09 CN CN201710674895.0A patent/CN109387891A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006337837A (en) * | 2005-06-03 | 2006-12-14 | Shin Etsu Polymer Co Ltd | Light emitting direction controlling film |
| JP2007072239A (en) * | 2005-09-08 | 2007-03-22 | Shin Etsu Polymer Co Ltd | Viewing angle controlling element |
| JP2007212507A (en) * | 2006-02-07 | 2007-08-23 | Shin Etsu Polymer Co Ltd | Peep prevention object |
| CN102289017A (en) * | 2010-06-16 | 2011-12-21 | 索尼公司 | Optical body, window member, building fitting, and solar shading device |
| CN104090378A (en) * | 2014-07-11 | 2014-10-08 | 京东方科技集团股份有限公司 | Peeping-resistant device and method |
| CN210072116U (en) * | 2016-11-29 | 2020-02-14 | 信越聚合物株式会社 | Louvered film |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111290056A (en) * | 2020-03-19 | 2020-06-16 | 京东方科技集团股份有限公司 | Peep-proof film, preparation method thereof and display panel |
| CN111290056B (en) * | 2020-03-19 | 2022-06-14 | 京东方科技集团股份有限公司 | Peep-proof film, preparation method thereof and display panel |
| CN117706822A (en) * | 2024-02-06 | 2024-03-15 | 惠科股份有限公司 | Display panel and display device |
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