CN208984822U - Composite optical sheet - Google Patents
Composite optical sheet Download PDFInfo
- Publication number
- CN208984822U CN208984822U CN201821681920.4U CN201821681920U CN208984822U CN 208984822 U CN208984822 U CN 208984822U CN 201821681920 U CN201821681920 U CN 201821681920U CN 208984822 U CN208984822 U CN 208984822U
- Authority
- CN
- China
- Prior art keywords
- mentioned
- optical sheet
- layer
- prism
- pattern
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model relates to a kind of composite optical sheet, which includes: first, and front is formed with the first optical modulation layer being made of multiple prism patterns；It second, is layered in above-mentioned multiple prism patterns and front is formed with the second optical modulation layer；Joint portion is formed in a part of above-mentioned first positive end.
Description
[technical field]
The utility model relates to a kind of composite optical sheets, in more detail, the utility model relates to one kind solve it is compound
The high luminance composite optical sheet of the reduction problem of luminance caused by the side (edge) of the prism layer of optical sheet.
[background technique]
Liquid crystal display device (Liquid Crystal Display；LCD light source assembly used in) may include from liquid crystal
The side-light type light source assembly of the side supply light of display device, directly supply from the back side of liquid crystal display device light it is straight under
Formula light source assembly.The light that side-light type light source assembly allows light source to project equipped with light guide plate is irradiated towards upside, logical in order to adjust
It has crossed the optical characteristics of the light of light guide plate and has been equipped at least one optical sheet on the upside of light guide plate, directly-down light source component is then equipped with
Diffuser plate to reduce the bright line of light shot from the light source, in order to the optical characteristics for adjusting through the light of diffuser plate be equipped with to
A few optical sheet.
The light source assembly needs multiple exhibiting optical function optical sheets to shield light and accurate control light characteristic, optics the piece number
The thickness of light source assembly thickens and leads to that the production cost increases when amount increases.
As shown in Figure 1, the prior art covers after multiple optical sheets 300 are laminated in lower sash 100 in order to which optical sheet is laminated
Optical sheet unit is made in upper sash 200.The optical sheet unit is since integral thickness is thicker and needs to allow because of strength problem
The thickness of the piece of PET material becomes 180 μm or so, therefore is restricted in terms of reducing optical sheet unit thickness.
People develop composite optical sheet for this problem.Composite optical sheet is as illustrated in fig. 2 by being formed with prism layer
It first 400 and is formed with second 500 of microlens layer and is laminated, without using sash but form adhesive layer or adhesive layer
600 and the stacking of 2 pieces of pieces (sheet) is allowed by it.The composite optical sheet is able to piece thickness and is reduced to 120 without using sash
~125 μm, so as to which the thickness of optical sheet unit itself is greatly decreased.
The composite optical sheet can be reduced the thickness of piece, and manufacturing process is allowed to simplify, moreover it is possible to increase economic efficiency.However, suitable
Luminance with the optical sheet of sash is 100%, and in contrast to this, the luminance of composite optical sheet but drops to 92% or less.This
It is the problem of generation because adhesive layer or adhesive layer is configured with, due to being state that binder is coated in prism peak potion 410, because
This occurs scattering in above-mentioned peak potion 410 and luminance is caused to reduce.
Therefore, how to solve the problems, such as that above-mentioned luminance reduces when developing composite optical sheet becomes the pass for determining product quality
Key factor.
The Republic of Korea's granted patent bulletin 10-1253555 column portion with prism attempts to solve the problems, such as luminance reduction.But
The design in the column portion due to prism peak potion angulation change and can not be fully solved luminance reduce the problem of, maximum luminance is
98.78% and compared to existing optical sheet unit not can avoid 1.22% or the numerical value or more luminance reduce problem.
Moreover, Republic of Korea's granted patent bulletin 10-1414464 is by assigning inclination angle for binder course (adhesive layer)
Mode attempts to solve the problems, such as luminance reduction, but the program can not also solve to invade due to peak potion in adhesive layer and what is occurred ask
Topic, and assign the complex process at inclination angle and reduce economic benefit.
Moreover, Republic of Korea's granted patent bulletin No. 10-10-1492922 or No. 10-1502885 attempts to be constituted with particle
Solve the problems, such as optical property reduction with invading the peak potion of adhesive layer.But this method is due to the uniform chemical industry of particle distribution and density
The optimization of skill condition is very difficult and can not prevent diffraction caused by particle and can not fundamentally solve the problems, such as luminance reduction.
[prior art document]
[patent document]
Republic of Korea's granted patent bulletin 10-1253555
Republic of Korea's granted patent bulletin 10-1414464
Republic of Korea's granted patent bulletin 10-1492922
Republic of Korea's granted patent bulletin 10-1502885
[utility model content]
The utility model aims to solve the problem that the above problem of the prior art, and the purpose of the utility model is to provide a kind of complex lights
Piece is learned, which equally will not allow luminance to lose completely as the optical sheet unit for being applicable in sash of the prior art.
The utility model can solve the above subject, and the composite optical sheet of the utility model includes: first, and front is formed with
The first optical modulation layer being made of multiple prism patterns；It second, is layered in above-mentioned multiple prism patterns and front is formed
There is the second optical modulation layer；Joint portion is formed in a part of above-mentioned first positive end.
At this point, the peak potion of above-mentioned prism pattern and above-mentioned second back side abut, above-mentioned joint portion first just
Face is engaged with second back side.
The peak potion of above-mentioned prism pattern is isolated from above-mentioned second back side with a fixed spacing, and above-mentioned joint portion is first
Front engaged with second back side.
Moreover, above-mentioned first optical modulation layer can be scatter diagram pattern layer, microlens pattern layer or cylindrical lenses pattern layer.
[action and effect of utility model]
The structure of the composite optical sheet of the utility model is different with the existing composite optical sheet of prism peak potion intrusion adhesive layer
And the optical sheet unit for making the composite optical sheet picture of the utility model be applicable in sash equally will not allow luminance to lose completely.
[Detailed description of the invention]
Fig. 1 is the concept map for showing the optical sheet unit for the prior art for being applicable in sash.
Fig. 2 is the concept map for showing the stepped construction of general composite optical sheet.
Fig. 3 is the concept map for showing the stepped construction of composite optical sheet of one embodiment.
Fig. 4 is the concept map for showing the stepped construction of composite optical sheet of another embodiment, and (a) shows applicable bonding
The situation of agent (b) shows the situation for being applicable in adhesive tape.
[specific embodiment]
The utility model is described more detail below.The explanation of term or vocabulary used is not in present specification and claims
It can be defined in ordinary meaning or lexical meaning, inventor can suitably determine to use the best approach to illustrate its utility model
The concept of adopted relational language is based on the principle, it should solve with concept according to the meaning for the technical idea for meeting the utility model
It releases.
As shown in figure 3, the composite optical sheet of the utility model includes: first 400, front is formed with by multiple prism figures
The first optical modulation layer that case is constituted；It second 500, is layered in above-mentioned multiple prism patterns and front is formed with the second light tune
Preparative layer；Joint portion 450 is formed in a part of above-mentioned first positive end.Above-mentioned joint portion 450 can be along above-mentioned
The edge of first 400 positive end is formed in entire edge, can also be formed in a part at above-mentioned edge.
Above-mentioned first 400 is played the function of supporting the first optical modulation layer and by allowing light transmissive substance to be made.
The substance can be polycarbonate, polysulfones, polyacrylic acid, polystyrene, polyvinyl chloride, polyvinyl alcohol, polynorbornene, gather
In ester, polyethylene terephthalate some or more than one.
In one embodiment, above-mentioned first 400 can guide the straight rear injection of the light for being incident on inside.At another
In embodiment, above-mentioned first 400 itself can also have the optical modulation property of polarization, diffusion, reflection etc.For example, above-mentioned
A piece of 400, which can be polarizing coating, diffusion barrier, reflectance coating, reflective polarizer films, protective film, phase difference film or luminance, promotes film.
Above-mentioned first 400 front is formed with the first optical modulation layer.First optical modulation layer is formed with multiple prism patterns.
Each prism is equipped on the basis of the peak potion 410 of upper end towards the inclined prism facets in two sides.The apex angle of above-mentioned prism can be 45 ° extremely
135 ° of range, 60 ° to 130 ° of range or 85 ° can suitably be adjusted to 105 ° of ranges according to the optical characteristics of composite optical sheet
Section.Moreover, the overall width of above-mentioned prism is about 20 to 100 μm, the height of above-mentioned prism is about 10 to 60 μm preferable.
Prism pattern can be formed continuously from above-mentioned first 400 positive side to the other side.Moreover, adjacent rib
Mirror can be adjacent to each other, but can also be locally isolated.Here, " prism is adjacent " refers to that the bottom surface of prism is adjacent to each other.
Moreover, above-mentioned prism can be formed in first 400 integral face.Rectangle is formed on top view for first 400
When, the first direction as prism extending direction can be parallel with first 400 long side or short side.Moreover, above-mentioned first party
The angle of the crossing to the angle of the crossing of the long side with first 400 and/or above-mentioned first direction and short side can be respectively acute angle.This
When, the above-mentioned angle of the crossing can be between ± 5 to ± 30 ° of range.
Positive end a part due to the utility model at first 400 forms joint portion 450, it is preferred that
Even if above-mentioned prism pattern is formed in above-mentioned first 400 integral face, in the end a part for installing above-mentioned joint portion 450
Do not form prism pattern.Even if above-mentioned prism pattern is formed in above-mentioned first 400 integral face, end can also be formed in
Above-mentioned joint portion 450 is formed in the prism pattern at end in conjunction with binder or adhesive tape.
Above-mentioned prism can be formed by the macromolecule resin comprising UV-cured resin or thermosetting resin.For example, can
Illustrate unsaturated fatty acid ester, aromatic ethenyl compound, unsaturated fatty acid and its derivative, unsaturated dibasic acid and its
The vinyl cyanide compound etc. of derivative, methacrylonitrile etc.
Furthermore, it is also possible to be not suitable for above-mentioned prism pattern and be applicable in scatter diagram pattern layer, microlens pattern layer or cylindrical lenses
Pattern layer, at this point, peak potion refers to the point formed by each pattern.Also that is, above-mentioned peak potion should be illustrated as in the prior art
The point of the pattern configured to intrusion adhesive layer.It will not be damaged because of adhesive layer in the diversified pattern
Luminance is lost, therefore higher optical characteristics can be showed.
Above-mentioned first 400 upside configures second 500.Second 500 as above-mentioned first 400 by permission light
The substance of transmission is made, specifically, be applicable in polycarbonate, polysulfones, polyacrylic acid, polystyrene, polyvinyl chloride, polyvinyl alcohol,
Polynorbornene, polyester, in polyethylene terephthalate some or more than one.Above-mentioned second 500 can be by
It is made, can also be made of different substances with first 400 identical substance.
It is added in the composite optical sheet that physically combines derived from the first optical modulation layer being laminated as previously mentioned
It is able to carry out the photocontrol of all kinds of precisions with the optical modulation property of the second optical modulation layer.Above-mentioned second optical modulation layer can be with
It is scatter diagram pattern layer, microlens pattern layer, prism pattern layer or cylindrical lenses pattern layer.
When second optical modulation layer is applicable in microlens layer as shown in Figure 3 or Figure 4, above-mentioned second optical modulation layer may include multiple
Lenticule.The shape of each lenticule 230a can be with the shape of works remaining after certain surface cutting ball or ellipsoid.Cause
This, the surface of each lenticule can be curved surface.Above-mentioned cutting plane can pass through ball or ellipsoidal center.In this case, micro-
Lens can have the shape of hemisphere or semiellipsoid.
Moreover, above-mentioned cutting plane can also pass through inside beyond ball or ellipsoidal central place and be formed and be less than hemisphere or half
Ellipsoidal size.As another example, above-mentioned cutting plane can also be no more than on the outside of ball or ellipsoidal central place process and shape
At the size for being greater than hemisphere or semiellipsoid.As another variation, lenticule is also possible to the structure comprising following surface
Object, the surface do not have derived from ball or ellipsoidal curved surface.
The mean size of above-mentioned lenticule can select within the scope of the following in one embodiment, also that is, itself and second
The width in the face that 500 fronts connect is between 20 to 100 μm of range.The size of each lenticule can be uniform, but can also be upper
State the various lenticules of configuration different sizes in range.
Above-mentioned lenticule is formed in above-mentioned second 500 front, and adjacent lenticule can be adjacent to each other, but can also be with
Whole is locally isolated.As an example, above-mentioned lenticule can be practical flat along the second direction for being different from above-mentioned first direction
It arranges capablely.Further, lenticule can also be arranged in parallel along the third direction intersected with above-mentioned second direction is practical.
In this case, the angle of the crossing of above-mentioned second direction and third direction can be 90 °, but it's not limited to that for the utility model,
It is also possible to acute angle or obtuse angle.
Substrate layer can also be formed below first 400.Above-mentioned substrate layer can be the tree comprising multiple globules (bead)
Rouge layer is formed after being solidified.As another example, substrate layer can also be formed by the embossed pattern for having default surface roughness.It closes
It can be applicable in the detailed content of substrate layer and be disclosed specially by Republic of Korea granted patent bulletin 10-1001 322 or Republic of Korea
Sharp bulletin 10-2010-0043900 by embossed pattern, anti-be adjacent to the known skill for referring to and illustrating in a manner of floor, multiple globules etc.
Art.
Though it is not illustrated, being that can not form substrate layer below first 400 and form other optical modulation layers.
Above-mentioned other optical modulation layers can illustrate scatter diagram pattern layer, microlens pattern layer, prism pattern layer or cylindrical lenses pattern layer.
Moreover, above-mentioned first 400 and second 500 by above-mentioned joint portion 450 allow above-mentioned first 400 front with
Second 500 the back side engagement, at this point, the peak potion 410 of above-mentioned prism pattern as illustrated in fig. 3 with above-mentioned second 500 back
Face connects or is isolated from as illustrated in fig. 4 with a fixed spacing second 500 back side.
Different from the composite optical sheet of the prior art shown in Fig. 2, the structure of the prism pattern does not have at second 500 back side
It to form adhesive layer or adhesive layer and peak potion 410 will not occur completely and invade adhesive layer or adhesive layer and optical characteristics is caused to subtract
Few phenomenon.It has form identical with the optical sheet unit for being applicable in prior art sash and light loss does not occur completely, because
This can maintain 100% luminance.
As shown in above-mentioned Fig. 3 or Fig. 4, the peak potion 410 of above-mentioned prism pattern and above-mentioned second 500 back face or with
The case where one fixed spacing is isolated can suitably be adjusted according to the material of sheet above, thickness, required optical characteristics, can be by upper
The thickness for stating joint portion 450 is adjusted.
It is learnt according to simulation (simulation), regardless of the peak potion 410 of above-mentioned prism pattern and second 50 0 above-mentioned
Back face is isolated with a fixed spacing, and luminance will not change with the thickness at above-mentioned joint portion 450.
Also that is, Fig. 3 instantiates the peak potion 410 of above-mentioned prism pattern and the stacking knot of above-mentioned second 500 back face
Structure, the stacking knot that Fig. 4 instantiates the peak potion 410 of above-mentioned prism pattern and above-mentioned second 500 back side is isolated with a fixed spacing
Structure.In Fig. 4, it is formed in the above-mentioned joint portion 450 such as (a) institute in Fig. 4 of above-mentioned first 400 positive end a part
A part of the prism pattern of end is cut off and connects with joint portion 450 when being applicable in binder with showing, (b) institute in Fig. 4
The prism pattern of end maintains form when being applicable in adhesive tape with showing and binder is only only applied to the peak potion of above-mentioned prism pattern
Ground stacking.
Above-mentioned joint portion 450 can be made of binder, adhesive or resin, also can be with band (tape) morphosis.Structure
It can illustrate the high transparency binder comprising polymer substance at the substance at above-mentioned joint portion 450, which can divide into
Silicon systems, urethane system, silicon-urethane composite construction SU polymer, acrylic acid (acryl) system, isocyanates (isocyanate)
System, polyethenol series, gelatin system, ethylene base system, latex (latex) system, Polyester, water system Polyester etc..
It as an example, can be by being solidified with the weight rate of 20~80%:80~20% comprising the UV of oligomer and monomer
Property cementing compositions are formed, at this point, above-mentioned oligomer can be applicable in one selected from urethane, epoxy acrylate and polyester series
Above oligomer, above-mentioned monomer can be applicable in selected from the DP HA for having 6,5,4,3,2,1 functional groups
(Dipentaerythritol Hexaacrylate)、DPPA(Dipentaerythritol Pentaacrylate) 、TMPTA
(trimethylolpropane triacrylate)、TMPTMA(Trimethylol propane triacrylate)、HDDA
(Hexanedioldiacrylate)、DPGDA(Dipropylene Glycol Diacrylate)、TPGDA
(Tripropylene Glycol Diacrylate), phenoxyethyl acrylate (PEA, phenoxyethyl
Acrylate), isobornyl methacrylate (IBOA), 2-Hydroxyethyl Methacrylate (2-HEMA) and 2-
The more than one monomer of hydroxyethyl acrylate (2-HEA).
Moreover, above-mentioned monomer may include DPAH (5~30%), DPPA (5~30%), TMTPA (3~20), PEA (10
~50%), IBOA (10~40%), 2-HEMA (1~10), 2-HEA (1~10%) and other monomers (1~30%).
Moreover, above-mentioned bonding layer 450 can be by the macromolecule resin shape comprising UV-cured resin or thermosetting resin
At.
Preferred embodiment is combined to illustrate the utility model as previously mentioned above, but the utility model is not limited to
Embodiment is stated, having usual skill in the utility model technical field can be in the model for the thought for not departing from the utility model
Various modifications and modification are realized in farmland.These variations and modification should all be illustrated as belonging to claims of the utility model
In range.
[symbol description]
100: lower sash 200: upper sash
300: optical sheet 400: the first
410: peak potion 450: joint portion
500: the second 600: adhesive layer
Claims (4)
1. a kind of composite optical sheet characterized by comprising
First, front is formed with the first optical modulation layer being made of multiple prism patterns；
It second, is layered in the multiple prism pattern and front is formed with the second optical modulation layer；
Joint portion is formed in a part of described first positive end.
2. composite optical sheet according to claim 1, it is characterised in that:
Wherein, the peak potion of the prism pattern and second back side abut, the joint portion first front with
Second back side is engaged.
3. composite optical sheet according to claim 1, it is characterised in that:
Wherein, the peak potion of the prism pattern is isolated from second back side with a fixed spacing, and the joint portion is described in
First front is engaged with second back side.
4. composite optical sheet according to claim 1, it is characterised in that:
Wherein, first optical modulation layer is scatter diagram pattern layer, microlens pattern layer or cylindrical lenses pattern layer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20180060793 | 2018-05-29 | ||
| KR10-2018-0060793 | 2018-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208984822U true CN208984822U (en) | 2019-06-14 |
Family
ID=66787862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821681920.4U Active CN208984822U (en) | 2018-05-29 | 2018-10-17 | Composite optical sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208984822U (en) |
-
2018
- 2018-10-17 CN CN201821681920.4U patent/CN208984822U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI662300B (en) | Light diffusing sheet and backlight device including the same | |
| CN101910921A (en) | Backlight reflectors with prism structure | |
| KR101915110B1 (en) | Method for manufacturing complex reflective polarized light film | |
| US10288796B2 (en) | Optical film | |
| CN110515241A (en) | A kind of backlight module, display device and production method | |
| JP2002208308A (en) | Plane light source device | |
| CN101784919A (en) | Optical sheet and backlight assembly and liquid crystal display comprising the same | |
| JP4970663B2 (en) | Light diffusion sheet and backlight unit using the same | |
| KR101253555B1 (en) | Complex optical film, light source assembly and liquid crystal display including the same, and method for fabricating the complex optical film | |
| WO2015019648A1 (en) | External-light-utilizing display body | |
| CN108254818A (en) | Liquid crystal display optical sheet and back light for liquid crystal display device unit | |
| JP2000231103A (en) | Lens sheet and back light and liquid crystal display device using the same | |
| CN208984822U (en) | Composite optical sheet | |
| KR100932606B1 (en) | Optical film and backlight unit including same | |
| CN101493200A (en) | Backlight module | |
| JP2009053686A (en) | Curved surface-forming prism sheet having concave curve-forming valley part cross section, its manufacturing method, surface light source and liquid crystal display apparatus | |
| JPH11142631A (en) | Prism type reflecting plate | |
| JP2001296408A (en) | Light diffusing sheet and back light unit using the same | |
| KR101050217B1 (en) | Diffuse plate integrated light collecting sheet having optical structure and liquid crystal display device having same | |
| KR100544518B1 (en) | Prismatic film for minimizing loss of light source | |
| KR100776714B1 (en) | Light guide plate for back-light with prism interface and the manufacturing method thereof | |
| KR101534341B1 (en) | Optical sheet | |
| KR101685574B1 (en) | Complex reflective polarized light film | |
| KR100983908B1 (en) | Optical sheet | |
| KR101586713B1 (en) | Optical film, light source assembly including the same, and method of fabricating mold for optical film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |