CN103412357A - Combined high-gain horizontal brightness enhancement film - Google Patents
Combined high-gain horizontal brightness enhancement film Download PDFInfo
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- CN103412357A CN103412357A CN2013103630130A CN201310363013A CN103412357A CN 103412357 A CN103412357 A CN 103412357A CN 2013103630130 A CN2013103630130 A CN 2013103630130A CN 201310363013 A CN201310363013 A CN 201310363013A CN 103412357 A CN103412357 A CN 103412357A
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Abstract
The invention provides a combined high-gain horizontal brightness enhancement film. The combined high-gain horizontal brightness enhancement film sequentially comprises a bearing layer, an atomizing layer and a brightness enhancement layer. Ball-shaped mini-type bubbles are formed on the surface of membranes of the atomizing layer. According to the combined high-gain horizontal brightness enhancement film, the usage amount of diffusion membranes is reduced, namely, two diffusion membranes do not need to be used , three membranes are used instead of five membranes, a medium capable of changing light evenness is utilized, the loss caused when a light ray passes through the brightness enhancement film is enhanced, meanwhile, the problem that total reflection is formed through a backlight module is solved, a bright ratio is improved, and cost is reduced.
Description
Technical field
The present invention relates to field of liquid crystal display, relate in particular to a kind of multi-functional compound horizontal brightness enhancement film of high-gain.
Background technology
The backlight module of conventional liquid crystal (LCD) (back light module) comprises light guide plate usually, the incidence surface of light guide plate is provided with light source, the light guide plate bottom is provided with reflector plate, on the light guide plate exiting surface, be disposed with lower diffusion barrier, vertical brightness enhancement film, horizontal brightness enhancement film, upper diffusion barrier.When the light source of backlight module produced light, light passed through the even light action of diffusion barrier and the optically focused effect of brightness enhancement film by the light that this light guide plate exiting surface sends, and reaches luminous energy and is evenly distributed, the optical effect of light focusing.
But the blooming piece that the backlight module of this structure is used is more, the assembly technology complexity, cost is high, and the efficiency of light energy utilization is not high yet.
Chinese patent application numbers 201010532465.3 discloses a kind of composite brightening film, and the structure of this composite brightening film is: in the one side with transparent film layer, the light collecting layer that one direction is arranged is set, at the another side of this transparent film layer, atomization face is set.This atomization bread contains a plurality of evenly distributed protruding semisphere pearl bodies, and the pearl body of this protruding semisphere particle diameter is to adopt the pearl body of recessed semisphere particle diameter of optical microstructures and the optical grade acrylate of liquid high index of refraction to form in conjunction with copying.The effect of this protruding semisphere pearl body is to make light diffraction, has the effect of atomization diffusion.But on manufacturing process, the recessed semisphere mould that must first prepare a microstructure just can be made described atomizing layer, cause production cost to rise.
Summary of the invention
The object of the invention is to overcome the shortcoming of above-mentioned prior art, provide a kind of compound high-gain horizontal brightness enhancement film, the horizontal brightness enhancement film of this compound high-gain (is called for short: lower brightness enhancement film) reduced by two diffusion barrier sheet use amounts, 5 diaphragms are reduced to 3 diaphragms, and on processing technology, reduced cost, improve bright rate.
To achieve these goals, the present invention adopts following technical scheme:
The horizontal brightness enhancement film of a kind of compound high-gain, comprise bearing bed, atomizing layer and brightness enhancement layer successively, and the membrane surface of described atomizing layer is formed with spherical micro bubbles.
Preferably, the size of described spherical micro bubbles is not exclusively the same.
Preferably, the horizontal brightness enhancement film of described compound high-gain is comprised of bearing bed, atomizing layer and brightness enhancement layer.
Preferably, described bearing bed is optical grade polyethylene terephthalate thin film layer.
Preferably, described atomizing layer is epoxide resin type high index of refraction UV-cured resin layer; Be preferably the methacryloxy resin bed.
Preferably, described brightness enhancement layer is high strength high index of refraction UV-cured resin layer; Be preferably the methacryloxy resin bed.
The preparation method of the horizontal brightness enhancement film of compound high-gain of the present invention, comprise the steps:
(1) on the bearing bed of the horizontal brightness enhancement film of compound high-gain, adopt the high-accuracy contrary print roll coating mode of three rollers that epoxide resin type high index of refraction UV-cured resin glue or epoxide resin type high index of refraction UV-cured resin aqueous solution are coated with, in the prebake conditions process, control the temperature of reaction of epoxide resin type high index of refraction UV-cured resin at 20-80 ℃, by ul-trasonic irradiation, make membrane surface form spherical micro bubbles simultaneously, and adopt ultraviolet light to be cured the acquisition atomizing layer;
(2) coating high strength high index of refraction UV-cured resin glue or aqueous solution on the atomizing layer of step (1), adopt ultraviolet source to be cured the acquisition brightness enhancement layer, the final horizontal brightness enhancement film of described compound high-gain that comprises bearing bed, atomizing layer and brightness enhancement layer that obtains.
Preferably, in step (1), during the high-accuracy contrary print roll coating of described employing three rollers, can adopt existing contrary roll-type three roll-coater or the reverse apparatus for coating of three rollers.
Preferably, in step (1), in epoxide resin type high index of refraction UV-cured resin glue or aqueous solution, the content of epoxide resin type high index of refraction UV-cured resin gets final product for the liquid that is applicable to coating.
Preferably, in step (2), in high strength high index of refraction UV-cured resin glue or aqueous solution, the content of high strength high index of refraction UV-cured resin gets final product for the liquid that is applicable to coating.
Preferably, in step (2), the energy of described ultraviolet source is higher can obtain more excellent effect, and the energy of more high-octane ultraviolet source or wavelength are 320-470nm.
Bearing bed of the present invention adopts optical grade polyethylene terephthalate thin film material.
Atomizing layer of the present invention, its materials'use epoxide resin type high index of refraction UV-cured resin, and adopt three rollers high-accuracy against the print roll coating mode, by the temperature of reaction of controlling resin, make its distillation composition in the prebake conditions process, pass through simultaneously ul-trasonic irradiation, at membrane surface, form spherical micro bubbles, it is better that the air light transmission is compared the diffusion particle effect, simultaneously, because light is the feature of diversity in the refraction that enters the surface of micro bubbles by resin, directly solved the essence root that forms total reflection.
Brightness enhancement layer of the present invention, its material adopts high strength high index of refraction UV-cured resin, increasing under the prism volume, increase lighting area, promote brightness, adopt simultaneously more high-octane ultraviolet source (this more high-octane ultraviolet source is the energy of the ultraviolet source that uses higher than blast resin bed of the prior art), make the link of light-cured resin molecule longer, closeer, promote surface strength, the damage of minimizing in assembling, promote bright rate.
Due to the backlight module self character, must be by clashing on light guide plate, etching, or laser carving method forms reflective site, in traditional backlight module, uses lower diffusion barrier sheet to hide these sites, improves simultaneously the uniformity characteristic of optics.Utilize attaching process by the use that fits together of lower diffusion barrier and lower brightness enhancement film abroad before, but this solution itself is still used two diaphragms, material itself or waste, simultaneously, a fatal shortcoming is: the even light effect of diffusion barrier is mainly by equally distributed diffusion particle, from on microstructure, diffusion particle (generally adopting the ball grain of high-index material) with air interface for the refraction of optics, be diversity, if but after diffusion barrier and lower brightness enhancement film are fit together, refraction for optics is to gather characteristic to diffusion particle at the interface with blooming piece, inner face at the brightness enhancement film triangular prism structure after light continues by the carrying basement membrane forms total reflection, greatly reduced the optical gain effect of brightness enhancement film.
The horizontal brightness enhancement film of compound high-gain of the present invention, utilize the medium that changes even light, promotes light in the loss by brightness enhancement film, solves simultaneously the problem that above-mentioned backlight module forms total reflection, raises the efficiency, and reduces costs.
The accompanying drawing explanation
Fig. 1 is the structural representation of the horizontal brightness enhancement film of compound high-gain of the present invention.
Embodiment
Content for a better understanding of the present invention, be described further below in conjunction with specific embodiment.
The horizontal brightness enhancement film of compound high-gain as shown in Figure 1, comprise bearing bed 3, atomizing layer 2 and brightness enhancement layer 1 successively, and the membrane surface of described atomizing layer 2 is formed with spherical micro bubbles 21.
Preferably, the horizontal brightness enhancement film of described compound high-gain is comprised of bearing bed 3, atomizing layer 2 and brightness enhancement layer 1.
Preferably, described bearing bed is optical grade polyethylene terephthalate thin film layer.
Preferably, described atomizing layer is epoxide resin type high index of refraction UV-cured resin layer; Be preferably the methacryloxy resin bed.
Preferably, described brightness enhancement layer is high strength high index of refraction UV-cured resin layer; Be preferably the methacryloxy resin bed.
The preparation method of the horizontal brightness enhancement film of compound high-gain of embodiment 1 is:
(1) on the bearing bed of the horizontal brightness enhancement film of compound high-gain, adopt the high-accuracy contrary print roll coating mode of three rollers that epoxide resin type high index of refraction UV-cured resin glue or aqueous solution are coated with, in the prebake conditions process, control the temperature of reaction of epoxide resin type high index of refraction UV-cured resin at 20-80 ℃, by ul-trasonic irradiation, make membrane surface form spherical micro bubbles simultaneously, and adopt ultraviolet light to be cured the acquisition atomizing layer;
(2) coating high strength high index of refraction UV-cured resin glue or aqueous solution on the atomizing layer of step (1), adopt more high-octane ultraviolet source to be cured the acquisition brightness enhancement layer, the final horizontal brightness enhancement film of described compound high-gain that comprises bearing bed, atomizing layer and brightness enhancement layer that obtains.
Preferably, in step (1), during the high-accuracy contrary print roll coating of described employing three rollers, can adopt existing contrary roll-type three roll-coater or the reverse apparatus for coating of three rollers.
Preferably, in step (1), in epoxide resin type high index of refraction UV-cured resin glue or aqueous solution, the content of epoxide resin type high index of refraction UV-cured resin gets final product for the liquid that is applicable to coating.
Preferably, in step (2), in high strength high index of refraction UV-cured resin glue or aqueous solution, the content of high strength high index of refraction UV-cured resin gets final product for the liquid that is applicable to coating.
Preferably, in step (2), the energy of described more high-octane ultraviolet source or wavelength are 320-470nm.
Bearing bed of the present invention adopts optical grade polyethylene terephthalate thin film material.
Atomizing layer of the present invention, its materials'use epoxide resin type high index of refraction UV-cured resin, and adopt three rollers high-accuracy against the print roll coating mode, by the temperature of reaction of controlling resin, make its distillation composition in the prebake conditions process, pass through simultaneously ul-trasonic irradiation, at membrane surface, form spherical micro bubbles, it is better that the air light transmission is compared the diffusion particle effect, simultaneously, because light is the feature of diversity in the refraction that enters the surface of micro bubbles by resin, directly solved the essence root that forms total reflection.
Brightness enhancement layer of the present invention, its material adopts high strength high index of refraction UV-cured resin, increasing under the prism volume, increase lighting area, promote brightness, adopt simultaneously more high-octane ultraviolet source (this more high-octane ultraviolet source is the energy of the ultraviolet source that uses higher than blast resin bed of the prior art), make the link of light-cured resin molecule longer, closeer, promote surface strength, the damage of minimizing in assembling, promote bright rate.
Due to the backlight module self character, must be by clashing on light guide plate, etching, or laser carving method forms reflective site, in traditional backlight module, uses lower diffusion barrier sheet to hide these sites, improves simultaneously the uniformity characteristic of optics.Utilize attaching process by the use that fits together of lower diffusion barrier and lower brightness enhancement film abroad before, but this solution itself is still used two diaphragms, material itself or waste, simultaneously, a fatal shortcoming is: the even light effect of diffusion barrier is mainly by equally distributed diffusion particle, from on microstructure, diffusion particle (generally adopting the ball grain of high-index material) with air interface for the refraction of optics, be diversity, if but after diffusion barrier and lower brightness enhancement film are fit together, refraction for optics is to gather characteristic to diffusion particle at the interface with blooming piece, inner face at the brightness enhancement film triangular prism structure after light continues by the carrying basement membrane forms total reflection, greatly reduced the optical gain effect of brightness enhancement film.
The horizontal brightness enhancement film of compound high-gain of the present invention, utilize the medium that changes even light, promotes light in the loss by brightness enhancement film, solves simultaneously the problem that above-mentioned backlight module forms total reflection, raises the efficiency, and reduces costs.
The above; it is only preferred embodiment of the present invention; not to any formal and substantial restriction of the present invention; should be understood that; for those skilled in the art; under the premise of not departing from the present invention, also can make some improvement and supplement, these improvement and supplement and also should be considered as falling into protection scope of the present invention.All those skilled in the art, without departing from the spirit and scope of the present invention, a little change of making when utilizing the disclosed above technology contents, the equivalent variations of modifying and developing, be equivalent embodiment of the present invention; Simultaneously, the change of any equivalent variations that all foundations essence technology of the present invention is done above-described embodiment, modify and differentiation, all still belong in the scope of technical scheme of the present invention.
Claims (9)
1. the horizontal brightness enhancement film of compound high-gain, is characterized in that, comprise successively bearing bed, atomizing layer and brightness enhancement layer, the membrane surface of described atomizing layer is formed with spherical bubbles.
2. the horizontal brightness enhancement film of compound high-gain according to claim 1, is characterized in that, described spherical bubbles is spherical micro bubbles.
3. the horizontal brightness enhancement film of compound high-gain according to claim 2, is characterized in that, the size of described spherical micro bubbles is not exclusively the same.
4. according to the horizontal brightness enhancement film of the arbitrary described compound high-gain of claim 1-3, it is characterized in that, the horizontal brightness enhancement film of described compound high-gain is comprised of bearing bed, atomizing layer and brightness enhancement layer.
5. the horizontal brightness enhancement film of compound high-gain according to claim 1, is characterized in that, described bearing bed is optical grade polyethylene terephthalate thin film layer.
6. the horizontal brightness enhancement film of compound high-gain according to claim 1, is characterized in that, described atomizing layer is epoxide resin type high index of refraction UV-cured resin layer; Described brightness enhancement layer is high strength high index of refraction UV-cured resin layer.
7. the horizontal brightness enhancement film of compound high-gain according to claim 6, is characterized in that, described atomizing layer and brightness enhancement layer are all the methacryloxy resin bed.
8. according to the preparation method of the horizontal brightness enhancement film of the arbitrary described compound high-gain of claim 1-7, comprise the steps:
(1) on the bearing bed of the horizontal brightness enhancement film of compound high-gain, adopt the high-accuracy contrary print roll coating mode of three rollers that epoxide resin type high index of refraction UV-cured resin glue or epoxide resin type high index of refraction UV-cured resin aqueous solution are coated with, in the prebake conditions process, control the temperature of reaction of epoxide resin type high index of refraction UV-cured resin at 20-80 ℃, by ul-trasonic irradiation, make membrane surface form spherical micro bubbles simultaneously, and adopt ultraviolet light to be cured the acquisition atomizing layer;
(2) coating high strength high index of refraction UV-cured resin glue or aqueous solution on the atomizing layer of step (1), adopt ultraviolet source to be cured the acquisition brightness enhancement layer, the final horizontal brightness enhancement film of described compound high-gain that comprises bearing bed, atomizing layer and brightness enhancement layer that obtains.
9. the preparation method of the horizontal brightness enhancement film of compound high-gain according to claim 8, is characterized in that, in step (2), the energy of described ultraviolet source is higher can obtain more excellent effect, and the energy of more high-octane ultraviolet source or wavelength are 320-470nm.
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| CN2013103630130A CN103412357A (en) | 2013-08-19 | 2013-08-19 | Combined high-gain horizontal brightness enhancement film |
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| CN2013103630130A CN103412357A (en) | 2013-08-19 | 2013-08-19 | Combined high-gain horizontal brightness enhancement film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340553A (en) * | 2017-08-10 | 2017-11-10 | 宁波激智科技股份有限公司 | A kind of high sprayed film for covering high briliancy and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007034287A (en) * | 2005-07-25 | 2007-02-08 | Samsung Electronics Co Ltd | Optical unit, method of manufacturing the same, backlight assembly having the same and display device |
| CN2916693Y (en) * | 2006-01-11 | 2007-06-27 | 长兴化学工业股份有限公司 | Multi-layer optical film |
| US20070164274A1 (en) * | 2006-01-18 | 2007-07-19 | K-Bridge Electronics Co., Ltd. | Brightness enforcement diffussion construction |
| CN101373228A (en) * | 2007-08-23 | 2009-02-25 | 开曼群岛商亚岗科技股份有限公司 | Optical film directly with base layer as light diffusion layer and its preparing method |
-
2013
- 2013-08-19 CN CN2013103630130A patent/CN103412357A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007034287A (en) * | 2005-07-25 | 2007-02-08 | Samsung Electronics Co Ltd | Optical unit, method of manufacturing the same, backlight assembly having the same and display device |
| CN2916693Y (en) * | 2006-01-11 | 2007-06-27 | 长兴化学工业股份有限公司 | Multi-layer optical film |
| US20070164274A1 (en) * | 2006-01-18 | 2007-07-19 | K-Bridge Electronics Co., Ltd. | Brightness enforcement diffussion construction |
| CN101373228A (en) * | 2007-08-23 | 2009-02-25 | 开曼群岛商亚岗科技股份有限公司 | Optical film directly with base layer as light diffusion layer and its preparing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340553A (en) * | 2017-08-10 | 2017-11-10 | 宁波激智科技股份有限公司 | A kind of high sprayed film for covering high briliancy and preparation method thereof |
| CN107340553B (en) * | 2017-08-10 | 2020-02-28 | 宁波激智科技股份有限公司 | High-covering-capacity and high-brightness atomization film and preparation method thereof |
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Application publication date: 20131127 |