CN103341981B - High-transmittance optical brightness enhancement film, and manufacture apparatus and manufacture process thereof - Google Patents
High-transmittance optical brightness enhancement film, and manufacture apparatus and manufacture process thereof Download PDFInfo
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- CN103341981B CN103341981B CN201310223084.0A CN201310223084A CN103341981B CN 103341981 B CN103341981 B CN 103341981B CN 201310223084 A CN201310223084 A CN 201310223084A CN 103341981 B CN103341981 B CN 103341981B
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Abstract
The invention relates to a high-transmittance optical brightness enhancement film. The film comprises a brightness enhancement film body (11), and a microprism structure (12) disposed on the upper surface of the brightness enhancement film body (11), wherein the pitch of the microprism structure is 25 [mu]m to 200 [mu]m. A manufacture apparatus of the film comprises a hot-air machine (2), a feed hopper (3), a hot-air drier (4), an air lock device (5), a hot melt device (6), a pattern roller (8) and a grinding roller (9), wherein the outlet end of the hot melt device (6) is equipped with a calender roller group (7), and the pattern roller (8) and the grinding roller (9) are in cooperation and disposed at the left side of the calender roller group (7). A manufacture process of the film comprises the following steps: S1, pattern roller preparation; S2, material preparing; S3, drying; S4, hot melting of granular materials; S5, calendaring; S6, moulding; and S7, final processing. The advantages are that processing cost is low, the influence on the environment in the manufacture process is small, the manufacture technology is simple, and transmittance is high.
Description
Technical field
The present invention relates to a kind of brightness enhancement film, particularly a kind of optical brightening membrane of high permeability, manufacturing equipment and manufacturing process thereof.
Background technology
Brightness enhancement film material adopts UV ultraviolet curing process to produce usually in the market, this technique is exactly the liquid glue of plastic material last layer after a kind of biaxial tension or multilayer in fact, patterned roll is on this liquid glue, roll the structure figure forming brightness enhancement film, due to the light transmittance of base material and glue and refractive index inconsistent, the optical grating construction formed there occurs change, cause the refractive direction of light to change, thus also have impact on the raising of light transmittance.Its raw material need that import cost is high, transmitance is low, and process is complicated, and production efficiency is low, be unfavorable for simplifying and produce, and this method is the method adopting coating, containing the dark agent of volatility in its coating fluid, certain harmful effect can be caused to environment, production safety.
Chinese Patent Application No.: 201110346640.4 disclose a kind of brightness enhancement film, it comprises substrate and microstructured layers, described substrate has the first optical surface and the second optical surface, second optical surface is positioned at the back side of the first optical surface, described not vibrational power flow is on the first optical surface, wherein microstructured layers comprises major micro-constructive and secondary micro-structural, and major micro-constructive comprises several major micro-constructive unit, and secondary micro-structural comprises several secondary microstructure unit.The brightness enhancement film of this structure is sandwich construction, and transmitance is low, and manufacturing process is complicated.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, provide that a kind of processing cost is low, optical brightening membrane, manufacturing equipment and its manufacturing process that little on the impact of environment in production process, manufacturing process is simple and transmitance is high.
Object of the present invention is achieved through the following technical solutions: a kind of manufacturing equipment of optical brightening membrane of high permeability, it comprises air-heater, feed hopper, hot-air drier, wind stopping device, hot melting equipment, patterned roll and sand roller, air-heater is fixedly mounted on the side of platform, the opposite side of platform is provided with hot-air drier, the pipeline connecting air-heater and hot-air drier is provided with feed hopper, the port of export of hot-air drier is connected with the entrance point of wind stopping device, the port of export of wind stopping device is connected with the arrival end of hot melting equipment, the port of export of hot melting equipment is provided with calendering smooth roll group, patterned roll coordinates with sand roller and is arranged at the left side of rolling smooth roll group.
The working face that the exit of described hot melting equipment, the working face of calendering smooth roll group and patterned roll coordinate with sand roller is on same level line.
Described patterned roll is column structure, the cylinder of patterned roll is provided with dentation grating.
Use the manufacturing equipment of the optical brightening membrane of described high permeability to manufacture a technique for optical brightening membrane, it comprises the following steps:
S1, preparation patterned roll: electroplate by electrochemical method the nickel alloy layer that a layer thickness is 500 μm ~ 1000 μm at calendering smooth roll roller surface, on nickel alloy layer, carve dentation optical grating construction with ultraprecise diamond special purpose machine tool, and pitch is 50 μm ~ 250 μm;
S2, to get the raw materials ready: select that transmitance is 87% ~ 90%, refractive index be PC, PMMA or PET of 1.53 ~ 1.62 as base-material, and fully to mix according to the ratio of 100:1 ~ 2:1 ~ 2 with plasticizer, light diffusing agent, for subsequent use;
S3, drying: the compound obtained by step S2 adds hot-air drier from feed hopper, and in hot-air drier, pass into hot blast by air-heater, moisture exhausting port discharges moisture, makes base-material be dried to moisture content≤0.13%;
S4, hot melt pellet: sent in hot melting equipment by the base-material obtained after drying and carry out hot melt, hot melting temperature is 220 DEG C ~ 260 DEG C;
S5, calendering: the base-material after hot melt rolls through calendering bachelor group, obtains the optical film material that thickness is 0.3mm ~ 1.0mm;
S6, shaping: the optical film material obtained by step S5 puts into the gap that patterned roll coordinates with sand roller, obtains the optical brightening membrane that lower surface mist degree is 8% ~ 12%, upper surface has micro-prism structure;
S7, finally process: cut according to customer requirement after the optical brightening membrane obtained by step S6 processes, detect, pack warehouse-in.
The environment temperature of described ultraprecise diamond special purpose machine tool processing mould roller should control between 19.9 DEG C ~ 20.1 DEG C.
The material of described employing high index of refraction carries out heat and melts the processing of rear calendering technology.
The optical brightening membrane of the high permeability that described manufacturing process manufactures, it comprises brightness enhancement film body, and the upper surface of brightness enhancement film body is provided with micro-prism structure; The pitch of micro-prism structure is 25 μm ~ 200 μm.
The angular error of described micro-prism structure is ± 1 °.
Described micro-prism structure is V-arrangement or semicircular arc structure.
The present invention has the following advantages:
1, only a kind of material is used, and molded by once prolonging, and do not need first to manufacture basement membrane by biaxial tension, then above basement membrane, adopt the manufacture of UV ultraviolet curing process, while the cost of raw material is low, shorten manufacturing man-hours, overall cost is low.
2, owing to not needing to use solvent, the method that environmental protection, security are also comparatively coated with will be got well, little on the impact of environment.
3, the present invention directly selects the macromolecular material of high permeability refractive index, and the mode of being prolonged pressure by hot melt is manufactured, and its manufacturing process is simple.
4, only use a kind of forming materials, improve the transmitance of product, make the refractive index of product more stable, refractive index can not be affected because the material of two or more unlike material is superimposed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the optical brightening membrane producing device of high permeability;
Fig. 2 is the structural representation of patterned roll;
Fig. 3 is the structure for amplifying schematic diagram at A place in Fig. 2;
The structural representation of Fig. 4 to be prism structure be optical brightening membrane of V-arrangement;
The structural representation of Fig. 5 to be prism structure be optical brightening membrane of semicircular arc;
In figure: 1-platform, 2-air-heater, 3-feed hopper, 4-hot-air drier, 5-wind stopping device, 6-hot melting equipment, 7-rolls smooth roll group, 8-patterned roll, 9-sand roller, 10-dentation grating, 11-brightness enhancement film body, 12-prism structure.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described, but protection scope of the present invention is not limited to the following stated.
[embodiment 1]:
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of manufacturing equipment of optical brightening membrane of high permeability, it comprises air-heater 2, feed hopper 3, hot-air drier 4, wind stopping device 5, hot melting equipment 6, patterned roll 8 and sand roller 9, air-heater 2 is fixedly mounted on the side of platform 1, the opposite side of platform 1 is provided with hot-air drier 4, connect air-heater 2 and be provided with feed hopper 3 with the pipeline of hot-air drier 4, the port of export of hot-air drier 4 is connected with the entrance point of wind stopping device 5, the port of export of wind stopping device 5 is connected with the arrival end of hot melting equipment 6, the port of export of hot melting equipment 6 is provided with calendering smooth roll group 7, patterned roll 8 coordinates with sand roller 9 and is arranged at the left side of rolling smooth roll group 7.
The working face that the exit of described hot melting equipment 6, the working face of calendering smooth roll group 7 and patterned roll 8 coordinate with sand roller 9 is on same level line.
Described patterned roll 8 is column structure, the cylinder of patterned roll 8 is provided with dentation grating 10.
Use the manufacturing equipment of the optical brightening membrane of described high permeability to manufacture a technique for optical brightening membrane, it comprises the following steps:
S1, preparation patterned roll: electroplate by electrochemical method the nickel alloy layer that a layer thickness is 500 μm at calendering smooth roll roller surface, with ultraprecise diamond special purpose machine tool, environment temperature is 19.9 DEG C, and nickel alloy layer is carved dentation optical grating construction, and pitch is 50 μm;
S2, to get the raw materials ready: select that transmitance is 87%, refractive index be PC, PMMA or PET of 1.62 as base-material, and fully to mix according to the ratio of 100:1:1 with plasticizer, light diffusing agent, for subsequent use;
S3, drying: the compound obtained by step S2 adds hot-air drier 4 from feed hopper 3, and in hot-air drier 4, pass into hot blast by air-heater 2, moisture exhausting port discharges moisture, makes base-material be dried to moisture content≤0.13%;
S4, hot melt pellet: sent in hot melting equipment 6 by the base-material obtained after drying and carry out hot melt, hot melting temperature is 260 DEG C;
S5, calendering: the base-material after hot melt is organized 7 through calendering bachelor and rolled, and obtains the optical film material that thickness is 1.0mm;
S6, shaping: the optical film material obtained by step S5 puts into the gap that patterned roll 8 coordinates with sand roller 9, obtains the optical brightening membrane that lower surface mist degree is 8%, upper surface has micro-prism structure;
S7, finally process: cut according to customer requirement after the optical brightening membrane obtained by step S6 processes, detect, pack warehouse-in.
Adopt the material of high index of refraction to carry out heat and melt the processing of rear calendering technology.
As shown in Figure 4, the optical brightening membrane of the high permeability adopting above-mentioned manufacturing process to manufacture, it comprises brightness enhancement film body 11, and the upper surface of brightness enhancement film body 11 is provided with micro-prism structure 12; The pitch of micro-prism structure 12 is 25 μm.
The angular error of the micro-prism structure 12 obtained is+1 °, and micro-prism structure 12 is v-shaped structure.
[embodiment 2]:
A manufacturing equipment for the optical brightening membrane of high permeability, its structure is with embodiment 1.
Use the manufacturing equipment of the optical brightening membrane of described high permeability to manufacture a technique for optical brightening membrane, it comprises the following steps:
S1, preparation patterned roll: electroplate by electrochemical method the nickel alloy layer that a layer thickness is 750 μm at calendering smooth roll roller surface, with ultraprecise diamond special purpose machine tool, environment temperature is 20 DEG C, and nickel alloy layer is carved dentation optical grating construction, and pitch is 150 μm;
S2, to get the raw materials ready: select that transmitance is 88%, refractive index be PC, PMMA or PET of 1.57 as base-material, and fully to mix according to the ratio of 100:1.5:1.5 with plasticizer, light diffusing agent, for subsequent use;
S3, drying: the compound obtained by step S2 adds hot-air drier 4 from feed hopper 3, and in hot-air drier 4, pass into hot blast by air-heater 2, moisture exhausting port discharges moisture, makes base-material be dried to moisture content≤0.13%;
S4, hot melt pellet: sent in hot melting equipment 6 by the base-material obtained after drying and carry out hot melt, hot melting temperature is 240 DEG C;
S5, calendering: the base-material after hot melt is organized 7 through calendering bachelor and rolled, and obtains the optical film material that thickness is 0.7mm;
S6, shaping: the optical film material obtained by step S5 puts into the gap that patterned roll 8 coordinates with sand roller 9, obtains the optical brightening membrane that lower surface mist degree is 10%, upper surface has micro-prism structure;
S7, finally process: cut according to customer requirement after the optical brightening membrane obtained by step S6 processes, detect, pack warehouse-in.
Adopt the material of high index of refraction to carry out heat and melt the processing of rear calendering technology.
As shown in Figure 5, the optical brightening membrane of the high permeability adopting above-mentioned manufacturing process to manufacture, it comprises brightness enhancement film body 11, and the upper surface of brightness enhancement film body 11 is provided with micro-prism structure 12; The pitch of micro-prism structure 12 is 140 μm.The angular error of obtained micro-prism structure 12 is 0; Micro-prism structure 12 is semicircular arc structure.
[embodiment 3]:
A manufacturing equipment for the optical brightening membrane of high permeability, its structure is with embodiment 1.
Use the manufacturing equipment of the optical brightening membrane of described high permeability to manufacture a technique for optical brightening membrane, it comprises the following steps:
S1, preparation patterned roll: electroplate by electrochemical method the nickel alloy layer that a layer thickness is 1000 μm at calendering smooth roll roller surface, with ultraprecise diamond special purpose machine tool, environment temperature is 20.1 DEG C, and nickel alloy layer is carved dentation optical grating construction, and pitch is 250 μm;
S2, to get the raw materials ready: select that transmitance is 90%, refractive index be PC, PMMA or PET of 1.53 as base-material, and fully to mix according to the ratio of 100:2:2 with plasticizer, light diffusing agent, for subsequent use;
S3, drying: the compound obtained by step S2 adds hot-air drier 4 from feed hopper 3, and in hot-air drier 4, pass into hot blast by air-heater 2, moisture exhausting port discharges moisture, makes base-material be dried to moisture content≤0.13%;
S4, hot melt pellet: sent in hot melting equipment 6 by the base-material obtained after drying and carry out hot melt, hot melting temperature is 220 DEG C;
S5, calendering: the base-material after hot melt is organized 7 through calendering bachelor and rolled, and obtains the optical film material that thickness is 0.3mm;
S6, shaping: the optical film material obtained by step S5 puts into the gap that patterned roll 8 coordinates with sand roller 9, obtains the optical brightening membrane that lower surface mist degree is 12%, upper surface has micro-prism structure;
S7, finally process: cut according to customer requirement after the optical brightening membrane obtained by step S6 processes, detect, pack warehouse-in.
Adopt the material of high index of refraction to carry out heat and melt the processing of rear calendering technology.
As shown in Figure 5, the optical brightening membrane of the high permeability adopting above-mentioned manufacturing process to manufacture, it comprises brightness enhancement film body 11, and the upper surface of brightness enhancement film body 11 is provided with micro-prism structure 12; The pitch of micro-prism structure 12 is 200 μm.
The angular error of obtained micro-prism structure 12 is-1 °; Micro-prism structure 12 is semicircular arc structure.
Claims (7)
1. the manufacturing equipment of the optical brightening membrane of a high permeability, it comprises air-heater (2), feed hopper (3), hot-air drier (4), wind stopping device (5), hot melting equipment (6) and patterned roll (8), air-heater (2) is fixedly mounted on the side of platform (1), the opposite side of platform (1) is provided with hot-air drier (4), connect air-heater (2) and be provided with feed hopper (3) with the pipeline of hot-air drier (4), the port of export of hot-air drier (4) is connected with the entrance point of wind stopping device (5), the port of export of wind stopping device (5) is connected with the arrival end of hot melting equipment (6), the port of export of hot melting equipment (6) is provided with calendering smooth roll group (7), it is characterized in that: it also comprises sand roller (9), patterned roll (8) coordinates with sand roller (9) and is arranged at the left side of rolling smooth roll group (7), the exit of described hot melting equipment (6), the working face that the working face of calendering smooth roll group (7) and patterned roll (8) coordinate with sand roller (9) is on same level line,
The manufacturing process of the optical brightening membrane of described high permeability, comprises the following steps:
S1, preparation patterned roll: electroplate by electrochemical method the nickel alloy layer that a layer thickness is 500 μm ~ 1000 μm at calendering smooth roll roller surface, on nickel alloy layer, carve dentation optical grating construction with ultraprecise diamond special purpose machine tool, and pitch is 50 μm ~ 250 μm;
S2, to get the raw materials ready: select that transmitance is 87% ~ 90%, refractive index be PC, PMMA or PET of 1.53 ~ 1.62 as base-material, and fully to mix according to the ratio of 100:1 ~ 2:1 ~ 2 with plasticizer, light diffusing agent, for subsequent use;
S3, drying: the compound obtained by step S2 adds hot-air drier (4) from feed hopper (3), and in hot-air drier (4), pass into hot blast by air-heater (2), moisture exhausting port discharges moisture, makes base-material be dried to moisture content≤0.13%;
S4, hot melt pellet: sent in hot melting equipment (6) by the base-material obtained after drying and carry out hot melt, hot melting temperature is 220 DEG C ~ 260 DEG C;
S5, calendering: the base-material after hot melt rolls through calendering bachelor's group (7), obtains the optical film material that thickness is 0.3mm ~ 1.0mm;
S6, shaping: the optical film material obtained by step S5 puts into the gap that patterned roll (8) coordinates with sand roller (9), obtains the optical brightening membrane that lower surface mist degree is 8% ~ 12%, upper surface has micro-prism structure;
S7, finally process: cut according to customer requirement after the optical brightening membrane obtained by step S6 processes, detect, pack warehouse-in.
2. the manufacturing equipment of the optical brightening membrane of a kind of high permeability according to claim 1, is characterized in that: described patterned roll (8) is column structure, the cylinder of patterned roll (8) is provided with dentation grating (10).
3. a kind of technique using the manufacturing equipment of the optical brightening membrane of high permeability to manufacture optical brightening membrane according to claim 1, is characterized in that: the environment temperature of described ultraprecise diamond special purpose machine tool processing mould roller should control between 19.9 DEG C ~ 20.1 DEG C.
4. a kind of technique using the manufacturing equipment of the optical brightening membrane of high permeability to manufacture optical brightening membrane according to claim 1, is characterized in that: the material of described employing high index of refraction carries out heat and melts the processing of rear calendering technology.
5. an optical brightening membrane for the high permeability of manufacturing process manufacture as claimed in claim 1, is characterized in that: it comprises brightness enhancement film body (11), the upper surface of brightness enhancement film body (11) is provided with micro-prism structure (12); The pitch of micro-prism structure (12) is 25 μm ~ 200 μm.
6. the optical brightening membrane of a kind of high permeability according to claim 5, is characterized in that: the angular error of described micro-prism structure (12) is ± 1 °.
7. the optical brightening membrane of a kind of high permeability according to claim 5, is characterized in that: described micro-prism structure (12) is V-arrangement or semicircular arc structure.
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| CN201310223084.0A CN103341981B (en) | 2013-06-06 | 2013-06-06 | High-transmittance optical brightness enhancement film, and manufacture apparatus and manufacture process thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105549135B (en) * | 2016-01-27 | 2018-01-12 | 张家港康得新光电材料有限公司 | Brightness enhancement film, its preparation method and include its display device |
| CN106671440A (en) * | 2016-08-29 | 2017-05-17 | 福建正德光电科技有限公司 | High-transmittance silk-screen-printing-free optical thin slice extrusion calendaring device and process |
| CN106671455A (en) * | 2016-08-30 | 2017-05-17 | 福建正德光电科技有限公司 | Silk-screen-printing-free light guide plate online production process and production device |
| CN109613748A (en) * | 2018-11-16 | 2019-04-12 | 薛治邑 | A kind of organic composite backlight module and its preparation system and production method |
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| CN101419296A (en) * | 2008-12-05 | 2009-04-29 | 南通天鸿镭射科技有限公司 | Optical film for plane display and method for manufacturing same |
| CN202200442U (en) * | 2011-09-06 | 2012-04-25 | 成都菲斯特科技有限公司 | Brightening optical grating mold |
| KR20120041565A (en) * | 2010-10-21 | 2012-05-02 | 김영희 | Pvc translucent sheet maker and it's sheet products |
| CN202805461U (en) * | 2012-12-06 | 2013-03-20 | 青州欧宝塑业有限公司 | Extruder raw material drying device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6808658B2 (en) * | 1998-01-13 | 2004-10-26 | 3M Innovative Properties Company | Method for making texture multilayer optical films |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419296A (en) * | 2008-12-05 | 2009-04-29 | 南通天鸿镭射科技有限公司 | Optical film for plane display and method for manufacturing same |
| KR20120041565A (en) * | 2010-10-21 | 2012-05-02 | 김영희 | Pvc translucent sheet maker and it's sheet products |
| CN202200442U (en) * | 2011-09-06 | 2012-04-25 | 成都菲斯特科技有限公司 | Brightening optical grating mold |
| CN202805461U (en) * | 2012-12-06 | 2013-03-20 | 青州欧宝塑业有限公司 | Extruder raw material drying device |
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Effective date of registration: 20160706 Address after: 364300 Longyan City, Fujian province Wuping County Yanqian Industrial Zone B04 Patentee after: FUJIAN ZHENGDE OPTOELECTRONICS TECHNOLOGY CO., LTD. Address before: 610023 No. 9 Tianyu Road, hi tech Zone, Sichuan, Chengdu Patentee before: Chengdu Fscreen Sci-Tech Co., Ltd. |
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