CN101644788A - Optical film structure and manufacturing method thereof - Google Patents
Optical film structure and manufacturing method thereof Download PDFInfo
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- CN101644788A CN101644788A CN200810145870A CN200810145870A CN101644788A CN 101644788 A CN101644788 A CN 101644788A CN 200810145870 A CN200810145870 A CN 200810145870A CN 200810145870 A CN200810145870 A CN 200810145870A CN 101644788 A CN101644788 A CN 101644788A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000012788 optical film Substances 0.000 title claims abstract 16
- 239000000463 material Substances 0.000 claims abstract description 75
- 239000000758 substrate Substances 0.000 claims abstract description 36
- 238000009792 diffusion process Methods 0.000 claims abstract description 33
- 238000001125 extrusion Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 3
- 239000002245 particle Substances 0.000 claims abstract 10
- 239000004793 Polystyrene Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 229920002223 polystyrene Polymers 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 6
- -1 polyethylene terephthalate Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 5
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 2
- 239000006096 absorbing agent Substances 0.000 claims 2
- 229920000139 polyethylene terephthalate Polymers 0.000 claims 2
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 1
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Abstract
An optical film structure and its manufacturing method is characterized in that a main substrate, a first transparent material and a second transparent material are combined into a whole by a co-extrusion process to change the light advancing direction. And directly forming a light guide microstructure on the surface of the first light-transmitting material in a rolling manner. In addition, the diffusion particles are added to at least one layer or each layer of the main substrate, the first light-transmitting material and the second light-transmitting material, so that the optical diaphragm structure with scratch prevention and high production yield is formed. Therefore, the invention can provide an optical film structure with high uniformity, can effectively avoid the structure from warping due to environmental change by co-extrusion and integral forming, and forms an improved optical film with scratch prevention and high production yield by the design of surface diffusion particles.
Description
Technical field
The present invention relates to a kind of optical diaphragm structure and manufacture method thereof, relate in particular to a kind of setting by different spatial structures and diffusion particulate, form the optical diaphragm structure and the manufacture method thereof of not isostructure and shape, to change the light travel path, and can be by adding the diffusion particulate on the surface of spatial structure, utilize its diffusion effect, avoid optical diaphragm structure production defective, effectively improve and produce yield.
Background technology
Along with the development of Digital Television, in the competition of field of display, LCD was subjected to consumer and dealer's attention constantly in recent years, also continued to remain on the high development rate on the sales volume of product.Wherein, the imaging mode of LCD utilizes the switch of electric field and drives and demonstrate high-quality picture, and liquid crystal panel itself can't emit beam, and must provide the display light source by backlight module.
Generally speaking, being applied in large-sized LCD is a directly-down light source, and directly-down light source can be by the increase of fluorescent tube, reaches the requirement of high brightness and uniform source of light with the design of diffusion component.In order to reach the requirement of high brightness, direct type backlight module must use " rhombus lens ", as light is concentrated the convergent important component.So-called rhombus lens, main function are the travel paths that is used to change light, by the three-legged structure on surface, its light are concentrated toward normal direction, reach for this reason and improve the third side to brightness.
Yet, though the spotlight effect of early stage rhombus lens meets the requirements, but owing to use the UV hardening process, must the shape transcription on the mould be formed in (PET) on the base material by optical forming glue, the angle of the spatial structure of its shaping is between 70 to 130 degree, directly touch the surface (as liquid crystal panel) of high rigidity and produce scratch for fear of spatial structure, must prevent structure scratch on the rhombus lens at storing a slice diffusion barrier above the rhombus lens.Moreover, the manufacture method of rhombus lens uses optical cement that the shape transcription on the mould is formed on the base material, job procedure such as must be shaped through gluing, pressing, sclerosis, release, but in release process, easy improper because of operation caused the defective of outward appearance, so manufacture method is not only more numerous and diverse, the production run difficulty causes yield not high simultaneously.
In addition,, produce the phenomenon of warpage, influence test result because base material will cause rhombus lens in reliability test with the difference of shrinkage factor between shaping glue.In the structure of existing rhombus lens, must use UV cured coating to form on the base material, often cause scratch, the release not good defective that causes, its complex process and to produce yield low.
Summary of the invention
Fundamental purpose of the present invention provides a kind of optical diaphragm structure and manufacture method thereof.By the design of different structure, can form multiple heteroid optical diaphragm structure, make light change the path that light advances by refraction or the reflection that diaphragm structure produced, reach the effect that light reconfigures.Simultaneously, also because the setting of diffusion particulate can evenly distribute the incident ray of injecting this diaphragm structure,, reach and improve the effect of producing yield with the defective of avoiding optical diaphragm structure to produce.So that the optical diaphragm structure of high uniformity to be provided, and can avoid structural environment to change producing the structure warpage.
To achieve the above object, the invention provides a kind of optical diaphragm structure, it is characterized in that, formed by having extrusion process altogether, this optical diaphragm structure comprises: a substrate layer, one first photic zone and one second photic zone.Substrate layer has the incidence surface of an exiting surface and opposite this exiting surface.First photic zone is located on the exiting surface of this substrate layer, and the first euphotic surface forms a leaded light microstructure.Second photic zone is located on the incidence surface of this substrate layer.Wherein, substrate layer, first photic zone and second euphotic wherein at least one deck add a plurality of diffusion particulates.
The present invention provides a kind of manufacture method of optical diaphragm structure in addition, it is characterized in that, step comprises: at first, provide a main base material, one first light transmissive material and one second light transmissive material.Secondly, optionally main base material, first light transmissive material and second light transmissive material wherein at least one deck under the melting state, adds many by single shaft or twin shaft extruder and spreads particulates and mix.At last,, respectively first, second light transmissive material is pressed on the positive and negative of main base material, and forms a leaded light microstructure by extruding profile roll on the surface of first light transmissive material by the technology that is total to extrusion.
Moreover, because of down, have yellow gradually and cause the colour temperature of panel and the problem generation of aberration in the long-time irradiation of cold-cathode tube (CCFL).So can further add ultraviolet light absorber at main substrate layer, first photic zone, second photic zone, the absorption region of its ultraviolet light absorber is between the 280nm to 380nm, and can avoid blooming piece to produce yellow.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the synoptic diagram of optical diaphragm structure first embodiment of the present invention;
Fig. 2 is the synoptic diagram of optical diaphragm structure second embodiment of the present invention;
Fig. 3 is the synoptic diagram of optical diaphragm structure the 3rd embodiment of the present invention;
Fig. 4 is the synoptic diagram of optical diaphragm structure the 4th embodiment of the present invention;
Fig. 5 is the process block diagram of the manufacture method of optical diaphragm structure of the present invention;
Fig. 6 is the synoptic diagram of the extrusion modling operation of optical diaphragm structure of the present invention;
Fig. 7 is the synoptic diagram of the roller roll extrusion operation of optical diaphragm structure of the present invention.
Wherein, Reference numeral
1 substrate layer
11 exiting surfaces, 12 incidence surfaces
2 first photic zones
21 leaded light microstructures, 210 cone structures
3 second photic zones
4 diffusion particulates
5 main base materials
51 positive 52 reverse side
6 first light transmissive materials
61 leaded light microstructures
7 second light transmissive materials
8 diffusion particulates
9 co-extrusions are given as security die head
10 rollers, 100 cone structures
Embodiment
See also shown in Figure 1ly, be the synoptic diagram of optical diaphragm structure first embodiment of the present invention, its structure comprises: a substrate layer 1, one first photic zone 2 and one second photic zone 3.By being total to extrusion process, can together substrate layer 1, first, second photic zone 2,3 be combined into one.Wherein, this substrate layer 1, first, second photic zone 2,3 are plastic material, and this plastic material can be polystyrene (PS), polymethylmethacrylate-polystyrene copolymer (MS), polycarbonate (PC), poly terephthalic acid diethylester (PET), COP, polypropylene (PP) or acrylic (PMMA) or is equal to the plastic material of above-mentioned material.
This substrate layer 1 is the primary structure as optical diaphragm structure, and it has an exiting surface 11 and an incidence surface 12 in contrast to exiting surface 11, as the faying face of first and second photic zone 2,3.Moreover, this optical diaphragm structure thickness range is 50 to 1000um, wherein each layer thickness of this substrate layer 1, first photic zone 2 or second photic zone 3 is 1/198/1 to/1/2.2/1, but does not exceed with above-mentioned than (first photic zone/substrate layer/second photic zone thickness ratio) scope.
This first photic zone 2 is located on the exiting surface 11 of this substrate layer 1, as the light emitting structures of optical diaphragm structure, in order to incident ray is carried out the branch light action, improves the light uniformity coefficient.The surface of first photic zone 2 forms a leaded light microstructure 21, can directing light, and the angle as adjusting the light all directions reaches the effect that light source reconfigures, and promotes the luminescence efficiency of first photic zone, 2 integral body.Among the present invention, this leaded light microstructure 21 is a plurality of cone structures 210, and the shape of these cone structures 210 can be triangle taper, trapezium structure or aspheric surface shape, and the tip of this triangle taper forms a slick and sly bent arc.
In first embodiment, this first photic zone 2 adds a plurality of diffusion particulates 4, in order to light is further disperseed, homogenising, improve the luminous diffusivity of first photic zone 2, and avoid scratch, the wearing and tearing open defect that produces of this first photic zone 2.Use by these diffusion particulates 4 can substitute traditional diffusion barrier sheet.Wherein, additions of these diffusion particulates 4 be 0.1% to 20% whole volume ratio of this first photic zone 2, and each spreads the diameter of particulate 4 between 0.1 μ m to 50 μ m, to improve luminous diffuser efficiency.The material of diffusion particulate 4 can be polystyrene (PS), acrylic (PMMA), silicon dioxide (SiO2) or silica resin (Silicone), or effect is equal to the material of PS, PMMA, SiO2 or Silicone.
In addition, optionally ultraviolet light absorber is made an addition in the arbitrary layer in this substrate layer 1, one first photic zone 2 and one second photic zone 3 or appoint among two-layer or the three-decker, and then avoid blooming piece to produce the problem of yellow.And in this specific embodiment, this second photic zone 3 is located on the incidence surface 12 of this substrate layer 1, and adds ultraviolet light absorber, as the light entrance structures thereof of optical diaphragm structure, light is entered, and carries out preliminary branch light action.
For this reason, under the structural design by substrate layer 1, first photic zone 2, second photic zone 3 and diffusion particulate 4, make this optical diaphragm structure effectively change light going direction, prevent scratch, damage, high uniformity of luminance is provided.
See also shown in Figure 2ly, be the synoptic diagram of optical diaphragm structure second embodiment of the present invention.The difference of second embodiment and first embodiment is:
To spread particulate 4 and make an addition to second photic zone 3; Same, light further can be disperseed, homogenising, improve the luminous diffusivity of second photic zone 3, and avoid structure scratch, the wearing and tearing of second photic zone 3.Additions of these diffusion particulates 4 are 0.1% to 20% whole volume ratio of this second photic zone 3.
See also shown in Figure 3ly, be the synoptic diagram of optical diaphragm structure the 3rd embodiment of the present invention.The difference of the 3rd embodiment and first embodiment is:
To spread that particulate 4 makes an addition to respectively, second photic zone 2,3, improve the luminous diffusivity of first and second photic zone 2,3, avoid structure scratch, the wearing and tearing of first, second photic zone 2,3.Additions of these diffusion particulates 4 are substrate layer 1, first photic zone 2 or 0.1% to 20% whole volume ratio of second photic zone 3.
See also shown in Figure 4ly, be the synoptic diagram of optical diaphragm structure the 4th embodiment of the present invention.The 4th embodiment and the first embodiment difference are:
To spread particulate 4 and make an addition to substrate layer 1, first photic zone 2 and second photic zone 3 respectively, improve the luminous diffusivity of this substrate layer 1 and first and second photic zone 2,3 simultaneously.
See also Fig. 5 to shown in Figure 7, be the process block diagram of the manufacture method of optical diaphragm structure of the present invention, with and the synoptic diagram of work flow.The manufacture method of this optical diaphragm structure, step is as follows:
First step provides a main base material 5, one first light transmissive material 6 and one second light transmissive material 7 (S101).Wherein, main base material 5 is as main extrusion structure, between first, second light transmissive material 6,7.6,7 secondary extrusion structures of first, second light transmissive material as this main extrusion structure of collocation.This main base material 5, first light transmissive material 6 and second light transmissive material 7 are a plastic material, and this plastic material is polystyrene (PS), polymethylmethacrylate-polystyrene copolymer (MS), polycarbonate (PC), poly terephthalic acid diethylester (PET), COP, polypropylene (PP) or acrylic (PMMA).
Second step, optionally main base material 5, first light transmissive material 6 and second light transmissive material 7 wherein at least one deck add diffusion particulate 8 (S103).More specifically, diffusion particulate 8 can make an addition in first light transmissive material 6; Perhaps, diffusion particulate 8 can make an addition in second light transmissive material 7; Perhaps, diffusion particulate 8 can make an addition on main base material 5, first light transmissive material 6 and second light transmissive material 7 simultaneously.Can utilize diffusion particulate 8 to improve the light diffusion effect of main base material 5, first and second light transmissive material 6,7, and protect first and second light transmissive material 6,7 structures, avoid scratch, wearing and tearing.As shown in Figure 6, add a plurality of diffusion particulates 8 in first light transmissive material 6.
Third step sees through the technology of extrusion altogether, respectively first and second light transmissive material 6,7 is pressed on the front 51 and the reverse side 52 of main base material 5, and forms a leaded light microstructure 61 (S105) on the surface of this first light transmissive material 6.,, in the technology of extrusion altogether, mainly comprise: heating and melting, extrusion modling and roll extrusion operation to shown in Figure 7 as Fig. 6.Wherein,, give as security the extrusion modling operation of die head 9 again via a co-extrusion, main base material 5, first light transmissive material 6 and second light transmissive material, 7 three-deckers are combined into an optical diaphragm structure main base material 5, first, second light transmissive material 6,7 heating and melting in advance.Secondly, form the operation of roller roll extrusion again by a plurality of rollers 10, so that this optical diaphragm structure is rolled into a reservation shape.In the roll extrusion operation, this roller 10 that is contacted with first light transmissive material 6 is provided with a plurality of cone structures 100, and these cone structures 100 can be triangle taper, trapezium structure or aspheric surface shape, and the tip of this triangle taper forms a slick and sly bent arc.In mode in the roller roll extrusion, make roller go out leaded light microstructure 61 in the surface rolling of first light transmissive material 6, and leaded light microstructure 61 forms a plurality of cone structures, the shape of these cone structures can be triangle taper, trapezium structure or aspheric surface shape, and the tip of this triangle taper forms a slick and sly bent arc.
In sum, optical diaphragm structure of the present invention and manufacture method thereof have following characteristics:
(1), utilize the technology of extrusion altogether, and the interpolation setting of diffusion particulate prevents scratch, the damage of optical diaphragm structure, and the effect by its light diffusion, effectively hides the thin portion defective of blooming piece itself.
(2), utilize the technology of extrusion altogether, can directly each structure be finished combination one-body moldedly, avoid the variation of environment, the shrinkage factor between the shaping glue that causes existing technology and base material different and produce the situation of structure warpage.
(3), only must utilize the setting of diffusion particulate, can save the use of diffusion barrier, and reach identical diffusion effect.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810145870A CN101644788A (en) | 2008-08-07 | 2008-08-07 | Optical film structure and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810145870A CN101644788A (en) | 2008-08-07 | 2008-08-07 | Optical film structure and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN101644788A true CN101644788A (en) | 2010-02-10 |
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| CN200810145870A Pending CN101644788A (en) | 2008-08-07 | 2008-08-07 | Optical film structure and manufacturing method thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147488A (en) * | 2011-03-11 | 2011-08-10 | 北京化工大学 | Diffusion plate of multilayered diffusion particle layer |
| CN102183804A (en) * | 2011-03-11 | 2011-09-14 | 北京化工大学 | Multi-layer variable combined diffusion plate |
| CN102411163A (en) * | 2010-07-23 | 2012-04-11 | 颖台科技股份有限公司 | Light guide device, backlight module with light guide device and liquid crystal display |
| CN102411164A (en) * | 2010-07-23 | 2012-04-11 | 颖台科技股份有限公司 | Light guide device, backlight module and liquid crystal display with light guide device |
| CN102411165A (en) * | 2010-07-23 | 2012-04-11 | 颖台科技股份有限公司 | Light guide device, backlight module and liquid crystal display with the light guide device |
| CN103163585A (en) * | 2011-12-08 | 2013-06-19 | 鸿富锦精密工业（深圳）有限公司 | Compound type light guiding module and manufacturing method thereof |
| CN105103011A (en) * | 2013-04-02 | 2015-11-25 | 三菱瓦斯化学株式会社 | Optical sheet and method for manufacturing same |
| CN105974500A (en) * | 2016-06-21 | 2016-09-28 | 钟莉 | Multilayer integrally-formed anti-dazzle optical diffuser plate |
| CN105974512A (en) * | 2016-06-06 | 2016-09-28 | 广州创维平面显示科技有限公司 | Light guide plate, backlight module, display device and manufacture method for light guide plate |
| CN106252452A (en) * | 2016-09-12 | 2016-12-21 | 深圳市金立通信设备有限公司 | A kind of manufacture method of optical sensor, terminal and optical sensor |
| CN110261943A (en) * | 2019-05-21 | 2019-09-20 | 品诚塑胶科技（上海）有限公司 | Multi-layer co-extruded compound light diffusing sheet material of one kind and preparation method thereof |
| CN111443407A (en) * | 2019-01-17 | 2020-07-24 | 惠州市凯帝智光电科技有限公司 | Multifunctional composite board |
| CN112099116A (en) * | 2020-09-07 | 2020-12-18 | 欧菲微电子技术有限公司 | Diffusion sheet and manufacturing method thereof, camera module and electronic equipment |
| CN113311527A (en) * | 2020-02-26 | 2021-08-27 | 南亚塑胶工业股份有限公司 | Infrared shielding film and method for producing same |
| CN116068807A (en) * | 2021-10-29 | 2023-05-05 | 友辉光电股份有限公司 | Optical film and method for producing the same |
| CN116572493A (en) * | 2023-07-07 | 2023-08-11 | 成都希德光安全科技有限公司 | Composite laser protection plate and processing technology thereof |
-
2008
- 2008-08-07 CN CN200810145870A patent/CN101644788A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411163A (en) * | 2010-07-23 | 2012-04-11 | 颖台科技股份有限公司 | Light guide device, backlight module with light guide device and liquid crystal display |
| CN102411164A (en) * | 2010-07-23 | 2012-04-11 | 颖台科技股份有限公司 | Light guide device, backlight module and liquid crystal display with light guide device |
| CN102411165A (en) * | 2010-07-23 | 2012-04-11 | 颖台科技股份有限公司 | Light guide device, backlight module and liquid crystal display with the light guide device |
| CN102411163B (en) * | 2010-07-23 | 2013-07-10 | 颖台科技股份有限公司 | Light guide device, backlight module and liquid crystal display with light guide device |
| CN102183804A (en) * | 2011-03-11 | 2011-09-14 | 北京化工大学 | Multi-layer variable combined diffusion plate |
| CN102147488B (en) * | 2011-03-11 | 2013-01-23 | 北京化工大学 | Diffusion plate of multilayered diffusion particle layer |
| CN102183804B (en) * | 2011-03-11 | 2013-03-13 | 北京化工大学 | Multi-layer variable combined diffusion plate |
| CN102147488A (en) * | 2011-03-11 | 2011-08-10 | 北京化工大学 | Diffusion plate of multilayered diffusion particle layer |
| CN103163585A (en) * | 2011-12-08 | 2013-06-19 | 鸿富锦精密工业（深圳）有限公司 | Compound type light guiding module and manufacturing method thereof |
| CN105103011B (en) * | 2013-04-02 | 2017-11-14 | 三菱瓦斯化学株式会社 | Optical sheet and its manufacture method |
| CN105103011A (en) * | 2013-04-02 | 2015-11-25 | 三菱瓦斯化学株式会社 | Optical sheet and method for manufacturing same |
| CN105974512A (en) * | 2016-06-06 | 2016-09-28 | 广州创维平面显示科技有限公司 | Light guide plate, backlight module, display device and manufacture method for light guide plate |
| CN105974500A (en) * | 2016-06-21 | 2016-09-28 | 钟莉 | Multilayer integrally-formed anti-dazzle optical diffuser plate |
| CN106252452A (en) * | 2016-09-12 | 2016-12-21 | 深圳市金立通信设备有限公司 | A kind of manufacture method of optical sensor, terminal and optical sensor |
| CN111443407A (en) * | 2019-01-17 | 2020-07-24 | 惠州市凯帝智光电科技有限公司 | Multifunctional composite board |
| CN110261943A (en) * | 2019-05-21 | 2019-09-20 | 品诚塑胶科技（上海）有限公司 | Multi-layer co-extruded compound light diffusing sheet material of one kind and preparation method thereof |
| CN113311527A (en) * | 2020-02-26 | 2021-08-27 | 南亚塑胶工业股份有限公司 | Infrared shielding film and method for producing same |
| US11561332B2 (en) | 2020-02-26 | 2023-01-24 | Nan Ya Plastics Corporation | Infrared shielding film and method for manufacturing the same |
| CN113311527B (en) * | 2020-02-26 | 2023-09-08 | 南亚塑胶工业股份有限公司 | Infrared shielding film and method for producing same |
| CN112099116A (en) * | 2020-09-07 | 2020-12-18 | 欧菲微电子技术有限公司 | Diffusion sheet and manufacturing method thereof, camera module and electronic equipment |
| CN116068807A (en) * | 2021-10-29 | 2023-05-05 | 友辉光电股份有限公司 | Optical film and method for producing the same |
| CN116572493A (en) * | 2023-07-07 | 2023-08-11 | 成都希德光安全科技有限公司 | Composite laser protection plate and processing technology thereof |
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