CN110967865A - Multilayer lamination film - Google Patents
Multilayer lamination filmDownload PDFInfo
- Publication number
- CN110967865A CN110967865ACN201811149989.7ACN201811149989ACN110967865ACN 110967865 ACN110967865 ACN 110967865ACN 201811149989 ACN201811149989 ACN 201811149989ACN 110967865 ACN110967865 ACN 110967865A
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- Prior art keywords
- prism
- layer
- prism layer
- structure array
- angle
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Optical Elements Other Than Lenses (AREA)
- Laminated Bodies (AREA)
Abstract
Translated fromChinese
Description
Technical Field
The invention relates to the field of optical films, in particular to a multilayer laminating film.
Background
The laminating film in the backlight module of the liquid crystal display has the advantages of high brightness, convenient assembly and high yield. The included angle between the upper layer of prism and the lower layer of prism of the laminating film used in the liquid crystal display is fixed at present, for example, the included angle between the two layers of prisms in the patent CN201310058308 is vertical, and the included angle between the two layers of prisms in the patent CN201611096522 is 45-135 degrees. Because two-layer prism all is sharp, and the angle of two-layer prism contained angle is fixed moreover, produces mole easily and interferes the problem, interferes the problem in order to solve mole, generally can adjust laminating film, if rotate an angle with the product is whole, nevertheless can change the product picture, derive new model. Because the included angle between the upper layer of prism and the lower layer of prism is fixed, the universality of the product is poor, and the product can be used on one machine type but cannot be used due to molar interference on the other machine type. At this time, the angle of the product needs to be adjusted by redevelopment or the product itself needs to be cut by rotating the angle, which wastes manpower and material resources. In addition, the linear prism is easy to generate rainbow lines, is easy to be adsorbed by the upper polaroid, and has low assembly yield due to poor wear resistance of products.
Disclosure of Invention
In order to overcome the above disadvantages, the present invention provides a multilayer adhesive film, which can reduce molar interference between two layers of prisms and between the prisms and pixel points of a liquid crystal display by changing an included angle between the two layers of prisms, and reduce material waste caused by angle-turning cutting of an adhesive film product.
In order to achieve the purpose, the technical scheme includes that the multilayer laminating film comprises a first prism layer and a second prism layer, the first prism layer and the second prism layer are bonded together by coating an adhesive on the non-prism structure array surface of the second prism layer, at least one prism valley connecting line of the first prism layer or the second prism layer is a wavy curve, the included angle between the trend direction of the prism valley bottom of the first prism layer and the trend direction of the prism valley bottom of the second prism layer is β and is more than or equal to 1 and less than or equal to β and less than or equal to 179 degrees, and the included angle β between the prism valley bottom directions of the first prism layer and the second prism layer is changed, so that molar interference between prisms and pixel points of a liquid crystal display can be effectively overcome, and material waste caused by angle-turning cutting of a laminating film product is reduced.
Of course, the connection line of the prism vertex angles of the first prism layer or the second prism layer may also adopt other bending lines besides a wave curve, so that the included angle β between the first prism layer or the second prism layer is changed by left-right change, depth change, straight line or combination of two or three.
The adhesive may be transparent or may have a matte surface formed by adding fine particles, and generally the adhesive has a thickness of 1 to 5 μm and a haze of 0 to 50%.
Further, first prism layer comprises from supreme first optical surface, the first substrate layer and the first prism structure array that set gradually down, second prism layer comprises from supreme second substrate layer and the second prism structure array that sets gradually down.
Further, the first prism layer and the second prism layer are produced by embossing, the cross section of the prism can be triangular or triangle-like, the vertex angle of the triangle can be sharp angle or round angle or other shapes, the preferred triangle is an isosceles triangle, the height of the triangle is 5-40 um, the vertex angle α of the triangle is 80-110 degrees, and the refractive index of the prism of the first prism layer and the second prism structure array is 1.48-1.64.
Further, the cycle length of the wave curve is 10-10000 um, and the amplitude of the wave curve is 1-100 um. The variation of the valley bottom connecting lines of the prism layer can be periodic or random. Preferably, the connecting line of the prism bottom of the first prism structure array is generally selected to be a straight line, and the connecting line of the prism bottom of the second prism structure array is selected to be a wave curve.
Furthermore, the first optical surface is usually formed by coating and curing a coating liquid containing fine particles, or may be formed by imprinting microstructures having different heights on the surface, and the haze of the back surface structure is usually in the range of 1 to 60% and the thickness is 2 to 10 μm.
Further, first substrate layer and second substrate layer constitute by PET or PC, between thickness 25 ~ 300 um.
Compared with the prior art, the invention has the following advantages: the included angle between the first prism layer and the second prism layer of the laminating film is changed, molar interference between the prisms of the first prism layer and the second prism layer and pixel points of the liquid crystal display can be reduced, and material waste caused by angle-turning cutting of a laminating film product is reduced. The included angle between the prism on first prism layer and second prism layer changes, has also improved the commonality of product, has reduced manpower and material resources extravagant. The change of contained angle between the prism millet bottom line has reduced because the straight line leads to the rainbow line, has reduced with lower polaroid adsorption possibility, has promoted product wearability and equipment yield.
Drawings
Fig. 1 is a schematic perspective view of embodiment 1 of the present invention;
fig. 2 is a schematic perspective view ofembodiment 2 of the present invention.
In the figure:
1-a first prism layer; 2-a second prism layer; 3-a binder; 11-a first optical surface; 12-a first substrate layer; 13-a first array of prismatic structures; 21-a second array of prismatic structures; 22-a second substrate layer.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Example 1
Referring to fig. 1, the multilayer bonding film in the embodiment includes a first prism layer 1 and asecond prism layer 2, the first prism layer 1 and thesecond prism layer 2 are bonded together by coating an adhesive 3 on a non-prism structure array surface of the second prism layer, theadhesive 3 may be transparent, or may be a matte surface formed by adding particles in the middle, the thickness of the adhesive is generally 1 to 5um, and the haze is 0 to 50%.
In the embodiment, the connecting line of the bottom of the prism valley of the first prism layer 1 is a straight line, one part of the connecting line of the bottom of the prism valley of thesecond prism layer 2 is a wave curve, and the other part of the connecting line of the bottom of the prism valley of thesecond prism layer 2 is a straight line, the included angle between the moving direction of the bottom of the prism valley of the first prism layer 1 and the moving direction of the bottom of the prism valley of thesecond prism layer 2 is β, the interval range of the included angle is 1- β -179 degrees, the included angle β between the bottom of the prism of the first prism layer 1 and the bottom of the prism of thesecond prism layer 2 is changed due to the fact that the connecting lines of the bottom of the prism of thesecond prism layer 2 are different, so that the molar interference between the prism and the pixel point of the liquid crystal display can be effectively overcome, and the material waste caused by the angle-turning cutting of the attached film product is reduced.
In this embodiment, the first prism layer 1 is composed of a firstoptical surface 11, afirst substrate layer 12 and a firstprism structure array 13 which are sequentially arranged from bottom to top, and thesecond prism layer 2 is composed of asecond substrate layer 22 and a secondprism structure array 21 which are sequentially arranged from bottom to top.
The first prism layer 1 and thesecond prism layer 2 are produced by embossing, the cross section of the prism can be triangular or triangle-like, the vertex angle of the triangle can be sharp angle or round angle or other shapes, the preferred triangle is an isosceles triangle, the height of the triangle is 5-40 um, the vertex angle α of the triangle is 80-110 degrees, and the refractive index of the prism of the first prism layer and the second prism structure array is 1.48-1.64.
In this embodiment, the period length of the wave curve is 10 ~ 10000um, the amplitude of the wave curve is 1 ~ 100 um. The variation of the bottom connecting lines of thesecond prism layer 2 may be periodic or random.
In this embodiment,first substrate layer 12 andsecond substrate layer 22 constitute by PET or PC, between thickness 25 ~ 300 um. The firstoptical surface 11 is usually formed by coating a coating liquid containing fine particles and then curing, or may be formed by imprinting microstructures having different heights on the surface, and usually the haze of the back surface structure is 1 to 60% and the thickness is 2 to 10 um.
Aiming at the effect of the multilayer laminated film, JH55Q, a UV glue of Zhejiang brocade glow discharge materials Co., Ltd, is used for manufacturing the prism layer, and T913E125 PET, Suzhou Mitsubishi chemical company, is used as the base material layer. The liquid crystal panel used in the interference test was a 55-inch 4K liquid crystal panel from Jingdong, and the JD-704 AG surface from Zhejiang brocade glow discharge materials, Inc. was used in the abrasion resistance test to rub the prism surface. The experimental data obtained were as follows:
it can be seen that when the included angle β between two layers of prisms is changed, molar interference is slightly smaller than a fixed included angle, the larger the bending amplitude is, the larger the change range of β is, the slightly smaller the bending length is, the smaller the change range of β is, the more serious the interference is, and meanwhile, the adsorption and wear resistance can be improved.
Example 2
As shown in fig. 2, the present embodiment provides a multilayer bonding film, which includes a first prism layer 1 and asecond prism layer 2, wherein the first prism layer 1 and thesecond prism layer 2 are bonded together by coating an adhesive 3 on a non-prism structure array surface of the second prism layer, theadhesive 3 may be transparent, or may be a matte surface formed by adding particles in the middle, the thickness of the adhesive is generally 1 to 5um, and the haze is 0 to 50%.
The connecting line of the bottom of the prism valley of the first prism layer 1 is a wave curve in one part and a straight line in the other part, the connecting line of the bottom of the prism valley of thesecond prism layer 2 is a straight line, the included angle between the moving direction of the bottom of the prism valley of the first prism layer and the moving direction of the bottom of the prism valley of the second prism layer is β, the range of the included angle is more than or equal to 1 degree and less than or equal to β and more than or equal to 179 degrees, and the included angle β between the bottom of the prism valley of the first prism layer 1 and the bottom of the prism of thesecond prism layer 2 is changed due to different connecting lines of the bottom of the prism valley of the first prism layer 1, so that molar interference between the pixel points of the prism and the liquid crystal display can be effectively overcome, and material waste caused by rotating angle cutting of a laminating.
As in embodiment 1, the first prism layer 1 in this embodiment is composed of a firstoptical surface 11, afirst substrate layer 12, and a firstprism structure array 13, which are sequentially disposed from bottom to top, and thesecond prism layer 2 is composed of asecond substrate layer 22 and a secondprism structure array 21, which are sequentially disposed from bottom to top.
The first prism layer 1 and thesecond prism layer 2 are produced by embossing, the cross section of the prism can be triangular or triangle-like, the vertex angle of the triangle can be sharp angle or round angle or other shapes, the preferred triangle is an isosceles triangle, the height of the triangle is 5-40 um, the vertex angle α of the triangle is 80-110 degrees, and the refractive index of the prism of the first prism layer and the second prism structure array is 1.48-1.64.
In this embodiment, the period length of the wave curve is 10 ~ 10000um, the amplitude of the wave curve is 1 ~ 100 um. The variation of the bottom connecting lines of thesecond prism layer 2 may be periodic or random.
In this embodiment,first substrate layer 12 andsecond substrate layer 22 constitute by PET or PC, between thickness 25 ~ 300 um. The firstoptical surface 11 is usually formed by coating a coating liquid containing fine particles and then curing, or may be formed by imprinting microstructures having different heights on the surface, and usually the haze of the back surface structure is 1 to 60% and the thickness is 2 to 10 um.
From the above two embodiments, it can be seen that the included angle β between the first prism layer 1 and thesecond prism layer 2 is variable, and the valley bottom connecting line at least comprising one prism layer is curved and variable, and the included angle between the two prism layers is variable by left-right variation, depth variation, straight line or combination of two or three, and the curved period length of the curved prism layer is 10-10000 um, the curved amplitude is 1-100 um, and the variation of the top angle connecting line of the prism layer can be periodic or random.
Compared with the prior art, the structure of the liquid crystal display reduces the interference between the prisms and the molar interference between the prisms and the pixel points of the liquid crystal display, improves the universality of products, reduces rainbow lines generated by straight lines easily, reduces the adsorption possibility, and improves the wear resistance and the assembly yield.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (8)
Translated fromChinesePriority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811149989.7ACN110967865A (en) | 2018-09-29 | 2018-09-29 | Multilayer lamination film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811149989.7ACN110967865A (en) | 2018-09-29 | 2018-09-29 | Multilayer lamination film |
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| Publication Number | Publication Date |
|---|---|
| CN110967865Atrue CN110967865A (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811149989.7APendingCN110967865A (en) | 2018-09-29 | 2018-09-29 | Multilayer lamination film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112764142A (en)* | 2021-01-05 | 2021-05-07 | 常州华威新材料有限公司 | High-brightness prism laminating film and preparation method thereof |
| CN114089453A (en)* | 2021-12-31 | 2022-02-25 | 凯鑫森(上海)功能性薄膜产业股份有限公司 | Preparation method of anti-interference and anti-scratch laminating film, laminating film and screen |
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| CN208766425U (en)* | 2018-09-29 | 2019-04-19 | 浙江锦德光电材料有限公司 | Multilayer lamination film |
- 2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2009085543A1 (en)* | 2007-12-20 | 2009-07-09 | 3M Innovative Properties Company | Backlight reflectors having a prismatic structure |
| CN102346268A (en)* | 2011-10-14 | 2012-02-08 | 北京康得新复合材料股份有限公司 | Brightness enhancement film |
| CN102789014A (en)* | 2012-07-13 | 2012-11-21 | 北京康得新复合材料股份有限公司 | Brightness enhancement film and display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112764142A (en)* | 2021-01-05 | 2021-05-07 | 常州华威新材料有限公司 | High-brightness prism laminating film and preparation method thereof |
| CN112764142B (en)* | 2021-01-05 | 2022-06-21 | 常州华威新材料有限公司 | High-brightness prism laminating film and preparation method thereof |
| CN114089453A (en)* | 2021-12-31 | 2022-02-25 | 凯鑫森(上海)功能性薄膜产业股份有限公司 | Preparation method of anti-interference and anti-scratch laminating film, laminating film and screen |
| CN114089453B (en)* | 2021-12-31 | 2023-09-01 | 凯鑫森(上海)功能性薄膜产业股份有限公司 | Preparation method of anti-interference and anti-scratch laminated film, laminated film and screen |
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