CN102798909A - Optical film and manufacturing method thereof - Google Patents
Optical film and manufacturing method thereof Download PDFInfo
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- CN102798909A CN102798909A CN2011101344830A CN201110134483A CN102798909A CN 102798909 A CN102798909 A CN 102798909A CN 2011101344830 A CN2011101344830 A CN 2011101344830A CN 201110134483 A CN201110134483 A CN 201110134483A CN 102798909 A CN102798909 A CN 102798909A
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- blooming piece
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- prism
- roller
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Abstract
The invention discloses an optical film and aims to provide a composite film, which is applicable to a backlight module, replaces the conventional architecture consisting of a prism sheet and a diffusion sheet or a micro-lens sheet and cannot generate ripple after being heated. The optical film comprises an optical film base material, a prism structure and a micro-lens structure, wherein the prism structure and the micro-lens structure are respectively arranged on two opposite surfaces of the optical film base material. The invention also discloses a manufacturing method of the optical film. The invention can be applied to the backlight module and a liquid crystal display screen.
Description
Technical field
The present invention relates to module backlight, especially relate to a kind of blooming piece and manufacturing approach thereof.
Background technology
Nowadays, lcd technology is more and more ripe, and TV is also from using traditional kinescope liquid crystal display till now.Because crystal display screen is passive luminous display screen, liquid crystal itself is not luminous, so LCDs needs module backlight that light source is provided.Divide from the classification of light source, module backlight can be divided into CCFL module backlight, LED-backlit module etc.Because general light source all is pointolite or line source, in common application, just need to use blooming piece to realize adding lustre to and effect such as diffusion.Common module backlight can need other diaphragms such as diffusion sheet, prismatic lens or lenticule.Many diaphragm frameworks are usually used diaphragm collocation modes, and it comprises that two diaphragms are the framework that a prismatic lens adds a diffusion sheet or micro-lens sheet.Like Fig. 4 is that traditional diaphragm one of is arranged in pairs or groups; It adopts DBEF (Dual Brightness Enhancement Film; The emission type polaroid) framework of 81+ prismatic lens 82+ micro-lens sheet 83; The upper surface of prismatic lens 82 is provided with prism structure 821, and the upper surface of micro-lens sheet 83 is provided with microlens structure 831.But the framework manufacturing of many diaphragms of these employings and installation are all very inconvenient, and cost is higher.Therefore, the composite membrane of prismatic lens and micro-lens sheet function has appearred integrating.The upper strata of existing composite membrane adopts prism, bottom to adopt the diffusion particle coating method to be made.Because the upper strata layers of prisms is different with bottom diffusion layer material, the heat expansion shrinkage is different, and deflection is inconsistent when being heated, and composite membrane has waviness phenomena and takes place.
Summary of the invention
The present invention provides a kind of blooming piece and manufacturing approach thereof for the composite membrane that solves prior art module backlight has the technical matters of waviness phenomena.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is a kind of blooming piece of design; Said blooming piece comprises blooming piece base material, prism structure and microlens structure, and said prism structure and microlens structure are separately positioned on two opposite faces of said blooming piece base material.
Said prism structure is arranged on the upper surface of blooming piece base material, and said microlens structure is arranged on the lower surface of blooming piece base material.
Said prism structure and said microlens structure are formed on the said blooming piece base material through roller roll extrusion, curing by UV glue.
The present invention also provides a kind of method of making above-mentioned blooming piece, comprises the following steps:
Coating UV glue on two opposite faces of blooming piece base material;
With the roll extrusion and behind overcuring, form prism structure and microlens structure respectively on two opposite faces of blooming piece base material respectively of the roller with prism transcription structure and roller with lenticule transcription structure.
Said prism transcription structure and said lenticule transcription structure all directly form or form through soft mode is installed on roller in portrayal on the roller.
The present invention is through being provided with prism structure and microlens structure respectively on two opposite faces of blooming piece base material; Thereby make light facial mask sheet constitute the composite membrane of double-side micro structure, wherein, prism structure is used for optically focused; The existing spotlight effect of microlens structure has diffusion effect again.Thereby can be used for replacing the framework that an existing prismatic lens adds a diffusion sheet or micro-lens sheet, manufacturing and installation are all very convenient, have reduced cost.Simultaneously, the sandwich framework of sandwich makes that the heat expansion shrinkage of diaphragm is fine, has avoided at high temperature each layer uneven phenomenon that produces ripple of being heated.
Description of drawings
Below in conjunction with embodiment and accompanying drawing the present invention is elaborated, wherein:
Fig. 1 is the structural drawing of blooming piece of the present invention;
Fig. 2 is the structural drawing that blooming piece of the present invention is provided with DBEF;
Fig. 3 is the manufacturing schematic diagram of blooming piece of the present invention;
Fig. 4 is the structural drawing of prior art blooming piece.
Embodiment
See also Fig. 1.Blooming piece of the present invention comprises blooming piece base material 1, prism structure 2 and microlens structure 3, and said prism structure and microlens structure are separately positioned on two opposite faces of said blooming piece base material.In this specific embodiment, prism structure 2 is arranged on the upper surface of blooming piece base material 1, and microlens structure 3 is arranged on the lower surface of blooming piece base material 1.The blooming piece base material is optical grade diaphragm base materials such as PET or PC.Said prism structure and said microlens structure are formed on the said blooming piece base material through roller roll extrusion, curing by UV glue.
When being applied to module backlight, also can on blooming piece, add and join DBEF (Dual Brightness Enhancement Film, emission type polaroid) 4, as shown in Figure 2.
See also Fig. 3, the figure shows a kind of principle of making above-mentioned blooming piece, the manufacturing approach of blooming piece is following:
The first step: coating UV glue on two opposite faces of blooming piece base material.
Concrete, the manufacturing structure of blooming piece comprises two blooming piece base materials among the figure: blooming piece base material 51 and blooming piece base material 52, and at the equal coating UV glue of upper and lower surfaces of blooming piece base material 51 and blooming piece base material 52.
Second step: with the roll extrusion and behind overcuring, form prism structure and microlens structure respectively on two opposite faces of blooming piece base material respectively of the roller with prism transcription structure and roller with lenticule transcription structure.
Concrete, the manufacturing structure of blooming piece also comprises four rolling among the figure: have first roller 61 of prism transcription structure, second roller 62 with prism transcription structure, the 4th roller 64 that has the 3rd roller 63 of lenticule transcription structure and have lenticule transcription structure.Wherein, first roller 61 and second roller 62 are one group of roller, are used for blooming piece base material 51 is processed.First roller 61 and second roller 62 be respectively in roll extrusion on the upper surface of blooming piece base material 51 and lower surface, and through forming prism structure and microlens structure behind the overcuring respectively on two opposite faces of blooming piece base material.The 3rd roller 63 and the 4th roller 64 are one group of roller, are used for blooming piece base material 52 and process.The 3rd roller 63 and the 4th roller 64 be respectively in roll extrusion on the upper surface of blooming piece base material 52 and lower surface, and through forming prism structure and microlens structure behind the overcuring respectively on two opposite faces of blooming piece base material.Said prism transcription structure and said lenticule transcription structure can also can be installed on the roller through soft mode through directly on roller, portraying.On first roller 61 and the 3rd roller 63, UV glue drip nozzle can also be set, to be used for coating UV glue on the blooming piece base material.In this step, the UV adhesive curing is consistent with traditional prism preparation method, so the present invention repeats no more.
Prism structure and microlens structure can generate simultaneously, also can generate prism structure, regeneration microlens structure earlier.
The present invention is through being provided with prism structure and microlens structure respectively on two opposite faces of blooming piece base material; Thereby make light facial mask sheet constitute the composite membrane of double-side micro structure, wherein, prism structure is used for optically focused; The existing spotlight effect of microlens structure has diffusion effect again.Thereby can be used for replacing the framework that an existing prismatic lens adds a diffusion sheet or micro-lens sheet, manufacturing and installation are all very convenient, have reduced cost.Simultaneously, the sandwich framework of sandwich makes that the heat expansion shrinkage of diaphragm is fine, has avoided at high temperature each layer uneven phenomenon that produces ripple of being heated.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. blooming piece, it is characterized in that: said blooming piece comprises blooming piece base material, prism structure and microlens structure, and said prism structure and microlens structure are separately positioned on two opposite faces of said blooming piece base material.
2. blooming piece according to claim 1 is characterized in that: said prism structure is arranged on the upper surface of blooming piece base material, and said microlens structure is arranged on the lower surface of blooming piece base material.
3. blooming piece according to claim 1 is characterized in that: said prism structure and said microlens structure are formed on the said blooming piece base material through roller roll extrusion, curing by UV glue.
4. a method of making the said blooming piece of claim 1 is characterized in that comprising the following steps:
Coating UV glue on two opposite faces of blooming piece base material;
With the roll extrusion and behind overcuring, form prism structure and microlens structure respectively on two opposite faces of blooming piece base material respectively of the roller with prism transcription structure and roller with lenticule transcription structure.
5. the manufacturing approach of blooming piece according to claim 4 is characterized in that: said prism transcription structure and said lenticule transcription structure all directly form or form through soft mode is installed on roller in portrayal on the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101344830A CN102798909A (en) | 2011-05-24 | 2011-05-24 | Optical film and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101344830A CN102798909A (en) | 2011-05-24 | 2011-05-24 | Optical film and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN102798909A true CN102798909A (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101344830A Pending CN102798909A (en) | 2011-05-24 | 2011-05-24 | Optical film and manufacturing method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257478A (en) * | 2013-05-22 | 2013-08-21 | 张家港康得新光电材料有限公司 | Composite type optical film and manufacturing method thereof |
| CN103760626A (en) * | 2013-12-26 | 2014-04-30 | 明基材料有限公司 | Dimming thin film |
| CN106154368A (en) * | 2015-03-23 | 2016-11-23 | 宁波激智科技股份有限公司 | A kind of multi-functional complex optical film |
| CN106908872A (en) * | 2017-01-20 | 2017-06-30 | 宁波长阳科技股份有限公司 | A kind of anti-scratch diffusion barrier and preparation method thereof |
| CN108121481A (en) * | 2018-01-16 | 2018-06-05 | 京东方科技集团股份有限公司 | A kind of composite prism, backlight module, display device |
| CN108474877A (en) * | 2015-12-28 | 2018-08-31 | 3M创新有限公司 | Product with microstructured layer |
| WO2020177780A3 (en) * | 2019-09-16 | 2020-10-29 | 南京贝迪电子有限公司 | Composite prism light guide film production apparatus |
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| EP0814300A1 (en) * | 1996-06-21 | 1997-12-29 | Casio Computer Company Limited | Surface light source device and liquid crystal display device using the same |
| US20050276565A1 (en) * | 2004-06-11 | 2005-12-15 | David Bourdin | Lighting and/or signalling device with optical guide for a motor vehicle |
| JP2006107997A (en) * | 2004-10-07 | 2006-04-20 | Mitsubishi Electric Corp | Surface light source device and liquid crystal display device |
| CN101324726A (en) * | 2007-04-18 | 2008-12-17 | 罗门哈斯丹麦金融有限公司 | Double-sided turning film |
| CN101362370A (en) * | 2007-08-08 | 2009-02-11 | 颖台科技股份有限公司 | Molding method for light diffusion structure of diffusion film and apparatus thereof |
| CN101498859A (en) * | 2008-01-30 | 2009-08-05 | 昌兴科技股份有限公司 | Multifunctional optical thin slab and manufacturing method thereof |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0814300A1 (en) * | 1996-06-21 | 1997-12-29 | Casio Computer Company Limited | Surface light source device and liquid crystal display device using the same |
| US20050276565A1 (en) * | 2004-06-11 | 2005-12-15 | David Bourdin | Lighting and/or signalling device with optical guide for a motor vehicle |
| JP2006107997A (en) * | 2004-10-07 | 2006-04-20 | Mitsubishi Electric Corp | Surface light source device and liquid crystal display device |
| CN101324726A (en) * | 2007-04-18 | 2008-12-17 | 罗门哈斯丹麦金融有限公司 | Double-sided turning film |
| CN101362370A (en) * | 2007-08-08 | 2009-02-11 | 颖台科技股份有限公司 | Molding method for light diffusion structure of diffusion film and apparatus thereof |
| CN101498859A (en) * | 2008-01-30 | 2009-08-05 | 昌兴科技股份有限公司 | Multifunctional optical thin slab and manufacturing method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257478A (en) * | 2013-05-22 | 2013-08-21 | 张家港康得新光电材料有限公司 | Composite type optical film and manufacturing method thereof |
| CN103760626A (en) * | 2013-12-26 | 2014-04-30 | 明基材料有限公司 | Dimming thin film |
| CN103760626B (en) * | 2013-12-26 | 2016-03-02 | 明基材料有限公司 | dimming film |
| CN106154368A (en) * | 2015-03-23 | 2016-11-23 | 宁波激智科技股份有限公司 | A kind of multi-functional complex optical film |
| CN108474877A (en) * | 2015-12-28 | 2018-08-31 | 3M创新有限公司 | Product with microstructured layer |
| CN106908872A (en) * | 2017-01-20 | 2017-06-30 | 宁波长阳科技股份有限公司 | A kind of anti-scratch diffusion barrier and preparation method thereof |
| CN108121481A (en) * | 2018-01-16 | 2018-06-05 | 京东方科技集团股份有限公司 | A kind of composite prism, backlight module, display device |
| CN108121481B (en) * | 2018-01-16 | 2020-12-08 | 京东方科技集团股份有限公司 | Composite prism, backlight module and display device |
| WO2020177780A3 (en) * | 2019-09-16 | 2020-10-29 | 南京贝迪电子有限公司 | Composite prism light guide film production apparatus |
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Application publication date: 20121128 |