CN105807341A - Roll-to-roll preparation method of contrast refined film - Google Patents
Roll-to-roll preparation method of contrast refined film Download PDFInfo
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- CN105807341A CN105807341A CN201610145073.9A CN201610145073A CN105807341A CN 105807341 A CN105807341 A CN 105807341A CN 201610145073 A CN201610145073 A CN 201610145073A CN 105807341 A CN105807341 A CN 105807341A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
- B05D7/04—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber to surfaces of films or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
- B05D7/586—No clear coat specified each layer being cured, at least partially, separately
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/118—Anti-reflection coatings having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/12—Optical coatings produced by application to, or surface treatment of, optical elements by surface treatment, e.g. by irradiation
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
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Abstract
The invention provides a roll-to-roll preparation method of a contrast refined film. The method comprises the steps of: designing and simulating a contrast refined film; carving out a wedge-shaped microstructure roller with the designed structure and size; carrying out surface processing on a PET base film coiled material, and then carrying out precise coating with optical microstructure function layer resin; carrying out semi-solidifying on the optical microstructure function layer resin, carrying out demoulding, deeply solidifying the basically-shaped optical microstructure function layer resin after demoulding, and solidifying the optical microstructure function layer resin into a film; precisely coating a optical microstructure function layer after film formation by solidifying with absorbing layer resin, and solidifying the absorbing layer resin into a film; and precisely coating an absorbing layer after film formation by solidifying with protection layer resin, and solidifying the protection layer resin into a film. The roll-to-roll preparation method of the contrast refined film has the advantages that a press roller facilitates demoulding, the size accuracy of the wedge-shaped microstructure is high, the yield is high, the operation is convenient, safety and reliability are realized, the method is economic and environmental-friendly, and large-scale batch production can be easily realized.
Description
Technical field
The present invention relates to new material technology field, especially relate to a kind of raising bright room contrast functional membrane volume to volume preparation method.
Background technology
Flexible Displays is the study hotspot of currently displaying technology, it is widely used in the fields such as communication, medium, mainly having Organic Light Emitting Diode (OLED), flexible liquid crystal (Flexible-LCD), Electronic Paper (EPD) etc., wherein OLED becomes the full color flexible display technologies of most industrialization prospect due to its simple in construction, the feature such as frivolous.But owing to OLED film layer structure is simple, lack the polaroid of liquid crystal display, thus external light source can reflect at the film surface of display device, causes contrast to be greatly reduced, and affects display effect.As the Display Technique of a kind of active illuminating, simultaneously with outdoor and portable for main application mode, high bright room contrast is that it meets the important indicator applied, and improving bright room contrast functional membrane is the requisite measure meeting application.
Improve bright room contrast functional membrane (ContrastRefinedFilm at present, CRF) it is mainly used in PDP TV, its primary structure is to imprint out trapezoidal, triangle, rectangular micro structure groove in the rete (white coating) of high permeability, and fills black absorption coating (black coating) in micro structure groove.The subject matter that existing CRF exists is that flexible poor, not easily shaping, transmitance are low, the degree of depth of this micro structure CRF rete micro structure is at 70～200 μm, considering the thickness of white coating and the thickness of basement membrane, gross thickness can reach 200～300 μm, and this thickness is not suitable for Flexible Displays；This rete depth of microstructure is excessive, causes the not easily demoulding in moulding process, causes yields low, and this is also the reason that this rete cost is high；Existing CRF utilizes black coating that the absorption of environment light is improved bright room contrast, necessarily cause the absorption that display is luminous, although the size that can pass through controlling depth, pitch, screening angle and black micro structure improves the transmitance that display is luminous in certain angle, but transmitance is still relatively low.We have invented a kind of new raising bright room contrast functional membrane volume to volume preparation method for this, solve above technical problem.
Summary of the invention
It is an object of the invention to provide a kind of thickness that micro structure functional layer is greatly reduced, improve the accuracy of wedged microstructures size, and make impression roller be prone to the demoulding, improve the raising bright room contrast functional membrane volume to volume preparation method of novel raising bright room contrast functional membrane yields.
The purpose of the present invention can be achieved by the following technical measures: improves bright room contrast functional membrane volume to volume preparation method; this raising bright room contrast functional membrane volume to volume preparation method includes: step 1; it is designed and simulation improving bright room contrast functional membrane; design the wedged microstructures of parallel arranged; constituted by four layers; base material is PET film, is upwards followed successively by optical microstructures functional layer, absorbed layer, protective layer from base material；Step 2, utilizes precision diamond machining equipment, carves out the wedged microstructures roller of the structure with design and size；Step 3, carries out surface treatment by PET basement membrane coiled material, and then accurate coated optical micro structure functional layer resin, imprints out the wedged microstructures of the parallel arranged of design with wedged microstructures roller；Step 4, by controlling UV Light distance, intensity and hardening time, makes optical microstructures functional layer resin semi-solid preparation, it is simple to the wedged microstructures roller demoulding, to the optical microstructures functional layer resin deeply-curing substantially shaped after the demoulding so that it is film-forming；Step 5, accurate coating absorbed layer resin in the optical microstructures functional layer after film-forming, by controlling UV Light distance, intensity and hardening time so that it is film-forming；Step 6, accurate coat protective layer resin on the absorbed layer after film-forming, by controlling UV Light distance, intensity and hardening time so that it is film-forming.
The purpose of the present invention realizes also by following technical measures:
In step 1, adopt ray tracing method that micro structure is designed and simulation, it is determined that microstructure size parameter and optical properties of material parameter, design the wedged microstructures of parallel arranged.
In step 3, carrying out accurate coating accuracy and be ± 1 μm, the PET basement membrane coil thickness of employing is 35～125 μm, light transmittance >=90%.
In step 4, the UV Light distance carried out is 10～30cm, and intensity is 100～300mV/cm2, hardening time≤10s, the optical microstructures functional layer thickness of generation is 15 μm, optical microstructures functional layer material refractive index 1.35～1.38, light transmittance >=93%.
In steps of 5, carrying out accurate coating accuracy and be ± 1 μm, the UV Light distance carried out is 10～30cm, and intensity is 100～300mV/cm2, hardening time≤10s, the absorber thickness of generation is 40 μm, absorbed layer Refractive Index of Material 1.6～1.65, light transmittance 81%～85%.
In step 6, carrying out accurate coating accuracy and be ± 1 μm, the UV Light distance carried out is 10～30cm, and intensity is 100～300mV/cm2, hardening time≤10s, the protective layer thickness of generation is 10 μm, protective layer material refractive index 1.35～1.38, light transmittance >=93%；
This raising bright room contrast functional membrane volume to volume preparation method also includes, after step 6, and the novel raising bright room contrast functional membrane rolling that will obtain, and cut into the coiled material of different in width as requested, and through after the assay was approved, packaging warehouse-in.
Raising bright room contrast functional membrane volume to volume preparation method in the present invention, thickness for existing bright room contrast functional membrane microstructured layers is excessive, moulding process is the demoulding not easily, yields is low, high in cost of production shortcoming, carry out the optical function membrane material based on microstructure technology and volume to volume Study on Preparation Technology thereof, a kind of novel raising bright room contrast functional membrane volume to volume preparation method is provided, the thickness of micro structure functional layer can be greatly reduced, improve the accuracy of wedged microstructures size, and make impression roller be prone to the demoulding, improve novel raising bright room contrast functional membrane yields.The raising bright room contrast functional membrane volume to volume preparation method of the present invention has the advantage that compared with customary preparation methods
The thickness of the microstructured layers of existing bright room contrast functional membrane is at 70～200 μm, and this rete micro structure thickness is excessive, causes the not easily demoulding in moulding process, causes yields low, and cost is high.The micro structure functional layer thickness of the novel raising of the present invention bright room contrast functional membrane is 15 μm, by controlling UV Light distance, intensity and hardening time in its volume to volume preparation method, make optical microstructures functional layer resin through semi-solid preparation, solidification process, make impression roller be prone to the demoulding, improve yields.
The bright room contrast functional membrane of improving of the present invention has the antiradar reflectivity to external incident light and low transmission, to features such as the high permeabilities of internal emission light, is remarkably improved flexible display device bright room contrast.The present invention improves bright room contrast functional membrane volume to volume preparation method to be had impression roller and is prone to the advantages such as the demoulding, wedged microstructures dimensional accuracy is high, yields is high, easy to operate, safe and reliable, economic and environment-friendly, it is easy to accomplish scale is produced in batches.
Accompanying drawing explanation
Fig. 1 is the flow chart of the specific embodiment improving bright room contrast functional membrane volume to volume preparation method of the present invention.
Detailed description of the invention
For making the above and other purpose of the present invention, feature and advantage to become apparent, cited below particularly go out preferred embodiment, and coordinate shown in accompanying drawing, be described in detail below.
As it is shown in figure 1, the flow chart improving bright room contrast functional membrane volume to volume preparation method that Fig. 1 is the present invention.Adopt following steps:
(1) adopt ray tracing method that micro structure is designed and simulation; determine microstructure size parameter and optical properties of material parameter, design the wedged microstructures of parallel arranged, constituted by four layers; base material is PET film, is upwards followed successively by optical microstructures functional layer, absorbed layer, protective layer from base material；
(2) utilize precision diamond machining equipment, carve out the wedged microstructures roller of the structure with design and size；
(3) PET basement membrane coiled material is carried out surface treatment, then accurate coated optical micro structure functional layer resin, the wedged microstructures of the parallel arranged of design is imprinted out with wedged microstructures roller, described accurate coating accuracy is ± 1 μm, described PET basement membrane coil thickness is 35～125 μm, light transmittance >=90%；
(4), by controlling UV Light distance, intensity and hardening time, make optical microstructures functional layer resin semi-solid preparation, it is simple to the wedged microstructures roller demoulding；To the optical microstructures functional layer resin deeply-curing substantially shaped after the demoulding so that it is film-forming, described UV Light distance is 10～30cm, and intensity is 100～300mV/cm2, hardening time≤10s, described optical microstructures functional layer thickness is 15 μm, optical microstructures functional layer material refractive index 1.35～1.38, light transmittance >=93%；
(5) accurate coating absorbed layer resin in the optical microstructures functional layer after film-forming, by controlling UV Light distance, intensity and hardening time, make its film-forming, described accurate coating accuracy is ± 1 μm, described UV Light distance is 10～30cm, and intensity is 100～300mV/cm2, hardening time≤10s, described absorber thickness is 40 μm, absorbed layer Refractive Index of Material 1.6～1.65, light transmittance 81%～85%；
(6) accurate coat protective layer resin on the absorbed layer after film-forming; by controlling UV Light distance, intensity and hardening time so that it is film-forming, described accurate coating accuracy is ± 1 μm; described UV Light distance is 10～30cm, and intensity is 100～300mV/cm2, hardening time≤10s, described protective layer thickness is 10 μm, protective layer material refractive index 1.35～1.38, light transmittance >=93%；
(7) the novel raising bright room contrast functional membrane rolling that will obtain, and cut into the coiled material of different in width as requested, through after the assay was approved, packaging warehouse-in.
Below for a specific embodiment of the application present invention.
Embodiment 1
(1) adopting ray tracing method, design the novel raising bright room contrast functional membrane adopting wedged microstructures, constituted by four layers, base material is PET film, is upwards followed successively by optical microstructures functional layer, absorbed layer, protective layer from base material.
(2) utilize precision diamond machining equipment, carve out wedged microstructures roller.
(3) by PET basement membrane (thickness 100 μm, light transmittance 91%) coiled material carries out surface treatment, then the optical microstructures functional layer resin (refractive index 1.35 of accurate coating 15 μ m-thick, light transmittance 93%), the wedged microstructures of the parallel arranged of design is imprinted out with wedged microstructures roller.
(4) first control luminous range 20cm, intensity 200mV/cm2, hardening time 5s, make optical microstructures functional layer resin semi-solid preparation；To the optical microstructures functional layer pitch control luminous range 20cm, the intensity 200mV/cm that substantially shape after the demoulding2, hardening time 10s so that it is deeply-curing film forming.
(5) the absorbed layer resin (refractive index 1.62, light transmittance 85%) of accurate coating 40 μ m-thick in the optical microstructures functional layer after film-forming, controls luminous range 20cm, intensity 200mV/cm2, hardening time 10s so that it is film-forming.
(6) the protective layer resin (refractive index 1.36, light transmittance 94%) of accurate coating 10 μ m-thick on the absorbed layer after film-forming, controls luminous range 20cm, intensity 200mV/cm2, hardening time 10s so that it is film-forming, it is thus achieved that novel raising bright room contrast functional membrane.
(7) test naked bright field bright room brightness value, naked details in a play not acted out on stage, but told through dialogues bright room brightness value, naked pad pasting (novel raising bright room contrast functional membrane) bright field bright room brightness value, naked pad pasting (novel raising bright room contrast functional membrane) details in a play not acted out on stage, but told through dialogues bright room brightness value respectively, being computed, the raising value of the bright room contrast of novel raising bright room contrast functional membrane is 262%.
Claims (7)
1. improve bright room contrast functional membrane volume to volume preparation method, it is characterised in that this raising bright room contrast functional membrane volume to volume preparation method includes:
Step 1, is designed and simulation improving bright room contrast functional membrane, designs the wedged microstructures of parallel arranged, constituted by four layers, and base material is PET film, is upwards followed successively by optical microstructures functional layer, absorbed layer, protective layer from base material；
Step 2, utilizes precision diamond machining equipment, carves out the wedged microstructures roller of the structure with design and size；
Step 3, carries out surface treatment by PET basement membrane coiled material, and then accurate coated optical micro structure functional layer resin, imprints out the wedged microstructures of the parallel arranged of design with wedged microstructures roller；
Step 4, by controlling UV Light distance, intensity and hardening time, makes optical microstructures functional layer resin semi-solid preparation, it is simple to the wedged microstructures roller demoulding, to the optical microstructures functional layer resin deeply-curing substantially shaped after the demoulding so that it is film-forming；
Step 5, accurate coating absorbed layer resin in the optical microstructures functional layer after film-forming, by controlling UV Light distance, intensity and hardening time so that it is film-forming；
Step 6, accurate coat protective layer resin on the absorbed layer after film-forming, by controlling UV Light distance, intensity and hardening time so that it is film-forming.
2. raising according to claim 1 bright room contrast functional membrane volume to volume preparation method, it is characterized in that, in step 1, adopt ray tracing method that micro structure is designed and simulation, determine microstructure size parameter and optical properties of material parameter, design the wedged microstructures of parallel arranged.
3. raising according to claim 1 bright room contrast functional membrane volume to volume preparation method, it is characterised in that in step 3, carries out accurate coating accuracy and is ± 1 μm, and the PET basement membrane coil thickness of employing is 35～125 μm, light transmittance >=90%.
4. raising according to claim 1 bright room contrast functional membrane volume to volume preparation method, it is characterised in that in step 4, the UV Light distance carried out is 10～30cm, and intensity is 100～300mV/cm2, hardening time≤10s, the optical microstructures functional layer thickness of generation is 15 μm, optical microstructures functional layer material refractive index 1.35～1.38, light transmittance >=93%.
5. raising according to claim 1 bright room contrast functional membrane volume to volume preparation method, it is characterised in that in steps of 5, carries out accurate coating accuracy and is ± 1 μm, and the UV Light distance carried out is 10～30cm, and intensity is 100～300mV/cm2, hardening time≤10s, the absorber thickness of generation is 40 μm, absorbed layer Refractive Index of Material 1.6～1.65, light transmittance 81%～85%.
6. raising according to claim 1 bright room contrast functional membrane volume to volume preparation method, it is characterised in that in step 6, carries out accurate coating accuracy and is ± 1 μm, and the UV Light distance carried out is 10～30cm, and intensity is 100～300mV/cm2, hardening time≤10s, the protective layer thickness of generation is 10 μm, protective layer material refractive index 1.35～1.38, light transmittance >=93%.
7. raising according to claim 1 bright room contrast functional membrane volume to volume preparation method, it is characterized in that, this raising bright room contrast functional membrane volume to volume preparation method also includes, after step 6, the novel raising bright room contrast functional membrane rolling that will obtain, and cut into the coiled material of different in width as requested, and through after the assay was approved, packaging warehouse-in.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610145073.9A CN105807341B (en) | 2016-03-14 | 2016-03-14 | Improve bright room contrast functional membrane volume to volume preparation method |
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| CN201610145073.9A CN105807341B (en) | 2016-03-14 | 2016-03-14 | Improve bright room contrast functional membrane volume to volume preparation method |
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| CN105807341A true CN105807341A (en) | 2016-07-27 |
| CN105807341B CN105807341B (en) | 2018-02-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107479115A (en) * | 2017-08-04 | 2017-12-15 | 来奇偏光科技(中国)股份有限公司 | A kind of manufacture craft of anti-reflective film |
| CN110088648A (en) * | 2016-12-14 | 2019-08-02 | 六号元素技术有限公司 | Diamond synthesis optical element |
| CN113552657A (en) * | 2021-07-01 | 2021-10-26 | 安徽胜利精密制造科技有限公司 | Preparation method of anti-glare ultralow-reflection film |
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| US20090273853A1 (en) * | 2006-08-31 | 2009-11-05 | Sang Hyun Park | Film for Improving Contrast and Preventing Moire Pattern, PDP Filter and Display Device Comprising the Same |
| CN101943859A (en) * | 2010-07-13 | 2011-01-12 | 苏州苏大维格光电科技股份有限公司 | Reel-to-reel ultraviolet nanometer coining device and method |
| CN102798915A (en) * | 2012-09-03 | 2012-11-28 | 天诺光电材料股份有限公司 | Filter membrane of plasma display panel capable of improving light-room contrast and preparation method of filter membrane |
| CN103792609A (en) * | 2011-12-31 | 2014-05-14 | 四川虹欧显示器件有限公司 | Plasma display screen filtering film and plasma display screen having plasma display screen filtering film |
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2016
- 2016-03-14 CN CN201610145073.9A patent/CN105807341B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090273853A1 (en) * | 2006-08-31 | 2009-11-05 | Sang Hyun Park | Film for Improving Contrast and Preventing Moire Pattern, PDP Filter and Display Device Comprising the Same |
| CN101943859A (en) * | 2010-07-13 | 2011-01-12 | 苏州苏大维格光电科技股份有限公司 | Reel-to-reel ultraviolet nanometer coining device and method |
| CN103792609A (en) * | 2011-12-31 | 2014-05-14 | 四川虹欧显示器件有限公司 | Plasma display screen filtering film and plasma display screen having plasma display screen filtering film |
| CN102798915A (en) * | 2012-09-03 | 2012-11-28 | 天诺光电材料股份有限公司 | Filter membrane of plasma display panel capable of improving light-room contrast and preparation method of filter membrane |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110088648A (en) * | 2016-12-14 | 2019-08-02 | 六号元素技术有限公司 | Diamond synthesis optical element |
| CN107479115A (en) * | 2017-08-04 | 2017-12-15 | 来奇偏光科技(中国)股份有限公司 | A kind of manufacture craft of anti-reflective film |
| CN107479115B (en) * | 2017-08-04 | 2022-01-18 | 来奇偏光科技(中国)股份有限公司 | Manufacturing process of anti-reflection film |
| CN113552657A (en) * | 2021-07-01 | 2021-10-26 | 安徽胜利精密制造科技有限公司 | Preparation method of anti-glare ultralow-reflection film |
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| CN105807341B (en) | 2018-02-06 |
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