CN203405590U - Brightness enhancement film - Google Patents
Brightness enhancement film Download PDFInfo
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- CN203405590U CN203405590U CN201320315207.9U CN201320315207U CN203405590U CN 203405590 U CN203405590 U CN 203405590U CN 201320315207 U CN201320315207 U CN 201320315207U CN 203405590 U CN203405590 U CN 203405590U
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Abstract
The utility model relates to the technical field of liquid crystal display equipment, and particularly to a brightness enhancement film. The brightness enhancement film includes a substrate and a plurality of prisms which are arranged on the substrate, the prisms are triangular prisms including first prisms and second prisms, and the heights of the first prisms are higher than that of the second prisms; and at least five second prisms form a second prism group, the first prisms and the second prism groups are arranged in an alternant manner, all the prisms are arranged in parallel with each other along their length directions. According to the brightness enhancement film, a protection film just contacts the first prisms when the protection film is laid, so that the contact area of prisms and the protection film can be reduced. The problem that residual glue may be left behind when the protection film is peeled can be solved because of the reduced contact area of prisms and the protection film.
Description
Technical field
The utility model relates to liquid crystal display device technical field, more particularly, and particularly a kind of brightness enhancement film.
Background technology
At present, brightness enhancement film (Brightness Enhancement Film, BEF) is widely used in illuminating module to be used for converging the light that light source is sent.Especially in the display device such as display, thereby increasing display brightness, conventional brightness enhancement film reaches the object that reduces display energy resource consumption.Traditional brightness enhancement film is normally consisted of substrate and the optically focused prism structure layer that is arranged on substrate, substrate and optically focused prism structure layer are all made by transparent resin material, optically focused prism structure layer is formed on a side of substrate, prism structure layer is comprised of in order to converge the common prism bar of light a plurality of, and these prism bar be arranged in parallel and form a prism array according to identical direction.Prism array will distribute within the refraction by light of light outside observer visual angle and reflection adjust to observer visual angle, has so improved the utilization factor of luminous energy that light source sends.
Yet, in traditional structure of reflection reducting coating, highly identical between the single prism unit of composition optically focused prism structure layer., easily there is in actual use problem below in like this structural design: when light penetration penetrates this prism structure layer, easily produce Newton ring and repeatedly line interfere) etc. negative optical effect; While stacking between brightness enhancement film, diffusion barrier, easily produce the dirty phenomenon of static; When diaphragm is peeled off, on structural sheet, easily leave more cull; Simultaneously traditional brightness enhancement film is in the processes such as touch, product stack, assembling, the phenomenon being all easily damaged; With this all assembling that is all unfavorable for backlight module, reduced the efficiency of assembling and the utilization factor of brightness enhancement film, increased cost.
In sum, how to solve diaphragm cull when peeling off brightness enhancement film and leave over more problem, become those skilled in the art's problem demanding prompt solution.
Utility model content
The purpose of this utility model is to provide a kind of brightness enhancement film, to solve the problems of the technologies described above.
A kind of brightness enhancement film is provided in embodiment of the present utility model, comprise substrate and prism, prism is arranged on substrate, prism is triangular prism, prism includes the first prism and the second prism, and the height of the first prism is higher than the height of the second prism, and the second prism that is no less than five forms the second prism group, the first prism and the second prism group are interspersed to be arranged, and whole prisms are horizontally disposed with along its length mutually.
Substrate can arrange support for prism provides, and prism can be arranged in an orderly manner.Substrate adopts sheet material light-permeable and that have higher intensity to make, and so, when prism is set, can improve the precision that arranges of prism.The concrete structure that a plurality of prisms are arranged on substrate is: along its length, whole prisms be arranged in parallel.
In the brightness enhancement film providing at the utility model, due to prism is specifically divided into two kinds, comprise the first prism and the second prism.The height of the first prism, higher than the height of the second prism, is so arranged on while laying diaphragm, and diaphragm only contacts with the first prism, thereby reaches the object that reduces prism and diaphragm contact area.Contact area between prism and diaphragm reduces, and when diaphragm is peeled off, the problem that cull is left over obtained solution.
Accompanying drawing explanation
Fig. 1 shows the structural representation of brightness enhancement film in a kind of embodiment of the utility model;
Fig. 2 shows the structural representation that is provided with diaphragm in a kind of embodiment of the utility model in brightness enhancement film;
In Fig. 1 and Fig. 2, the corresponding relation of component names and Reference numeral is:
Embodiment
Below by specific embodiment, also by reference to the accompanying drawings the utility model is described in further detail.
Please refer to Fig. 1, Fig. 1 shows the decomposition texture schematic diagram of internet electronic photo frame in a kind of embodiment of the utility model; Fig. 2 shows the schematic diagram of internet electronic photo frame and network interconnection in a kind of embodiment of the utility model.
The utility model provides a kind of brightness enhancement film, for increasing the display brightness of display module, to improve the service efficiency of display die set light source.
In the prior art; in brightness enhancement film, all can be provided with diaphragm; diaphragm adheres on the prism structure layer of brightness enhancement film by glue; because the prism unit height in prism structure layer is identical; cause area gluing between diaphragm and prism structure layer larger, the cull of leaving over after causing diaphragm to be peeled off is more.
In order to solve diaphragm cull when peeling off brightness enhancement film, leave over more problem, the utility model, on the architecture basics of prior art, has proposed following improvement project:
Brightness enhancement film comprises substrate 1 and prism, prism is arranged on substrate 1, prism is triangular prism, prism includes the first prism 2 and the second prism 3, the height of the first prism 2 is higher than the height of the second prism 3, the second prism that is no less than five forms the second prism group, and the first prism 2 and the second prism group are interspersed to be arranged, and whole prisms are horizontally disposed with along its length mutually.
Those skilled in the art are known, and the common prism of prior art is tri-prismoid structure.The concrete structure that a plurality of prisms are arranged on substrate 1 is: along its length, whole prisms be arranged in parallel.
Based on said structure design, in the utility model, prism has been carried out to architecture advances: prism is triangular prism, prism includes the height of the first prism 2 and the second prism 3, the first prisms 2 higher than the height of the second prism 3.
Diaphragm is when laying, and operating personnel can be tiled diaphragm, and then diaphragm is layed in brightness enhancement film with plane (diaphragm does not bend or fold).
In the brightness enhancement film providing at the utility model, due to prism is specifically divided into two kinds, comprise the first prism 2 and the second prism 3.The height of the first prism 2, higher than the height of the second prism 3, is so arranged on while laying diaphragm, and diaphragm only contacts with the first prism 2, thereby reaches the object that reduces prism and diaphragm contact area.Contact area between prism and diaphragm reduces, and when diaphragm is peeled off, the problem that cull is left over obtained solution.
At this, the second prism 3 is carried out to structure qualification: the second prism that is no less than five forms the second prism group, the first prism 2 and the second prism group adopt interspersed mode to arrange.
Those skilled in the art are known, and when diaphragm is laid, diaphragm contacts with prism.Prism is provided with to two highly different prisms, and object is to reduce the contact area between diaphragm and brightness enhancement film.Therefore, if the spacing between two the first prisms 2 is larger, can makes diaphragm support span and deform more greatly, increase the contact area between diaphragm and brightness enhancement film, increase leaving over of cull.Therefore,, through utility model people's test of many times, determine that the second prism 3 is set to five; five the second prisms form the second prism group; the first prism 2 and the second prism group are interspersed to be arranged, and so can either solve the leftover problem of cull, can also guarantee that diaphragm does not deform simultaneously.
Particularly, in the utility model, whole prisms uniformly-spaced arrange.Brightness enhancement film is provided with prism, and prism has the effect of collected light, thereby improves screen intensity, reduces the energy consumption of light source in display module.Prism adopts uniformly-spaced and arranges, and can guarantee that light that whole prisms assembles is when imaging, and the brightness of whole screen always, improves the display effect of display module.
In the utility model, because prism specifically includes two kinds, a kind of is the first highly relatively high prism 2, and another kind is the second highly relatively short prism 3.And in the above-described embodiments, whole prisms adopts and uniformly-spaced arranges, its concrete structure is:
Between the first prism 2, adopt uniformly-spaced and arrange; Between the second prism 3, adopt uniformly-spaced and arrange.The first prism 2 and the second prism 3 adopt interspersed structural design mutually.
In the present embodiment, be no less than two the second prisms and form the second prism group, the first prism 2 and the second prism group are interspersed to be arranged.Between two the first prisms 2, be provided with at least two the second prisms 3.
Certainly, in other embodiments of the present utility model, be no less than two the first prisms and form the first prism group; Be no less than five the second prisms and form the second prism group, the first prism group and the second prism group adopt interspersed mode to arrange.
In the utility model, prism adopts isoceles triangle prism structure, adopts isosceles structural design, can further improve the symmetry of prism to light-ray condensing and reflection, improves the display effect of display module.
Based on said structure, design:
Embodiment mono-
Prism includes drift angle, and the angle of drift angle is 85 ° to 95 °.
Be in particular: 90 °.
Embodiment bis-
Prism includes drift angle, and drift angle is arc chord angle, and the arc radius of arc chord angle is not more than 2 μ m.
Be in particular: 2 μ m.
The utility model arranges atomizing layer 4 in substrate 1 one sides, can make source light homogenising and the forward luminance raising of backlight module, and reduce the visual bright rays phenomenon of liquid crystal display, can simplify the usage quantity of blooming, simplify back light module unit structure, reduce costs; Also the probability that occurs the optics flaws such as Newton ring or moir Lou Lou patterns phenomenon because of optical interference can be reduced, the effect of coverage or hidden defects can be reached, and then enhancing optical representation and ease of use.
Particularly, at substrate, adopt in the embodiment of pet substrate, prism is arranged at a side of substrate, and the opposite side of substrate is provided with atomizing layer 4, and the degree of atomization of atomizing layer 4 is 20% to 30%.
Particularly, atomizing layer 4 can adopt the mode of spreading glue to realize.
In the present embodiment, the height that limits the first prism 2 is: 17 μ m to 19 μ m.
Be in particular: 18 μ m.
In the present embodiment, the height that limits the second prism 3 is: 14 μ m to 16 μ m.
Be in particular: 15 μ m.
In the present embodiment, the surface roughness Ra that limits the first prism 2 and the second prism 3 is not more than 20 μ m.
An embodiment of the present utility model is: a kind of brightness enhancement film, includes by triangular prism and form structural sheet, substrate 1 and atomizing layer 4; The structural sheet that triangular prism forms has the first prism 2 and the second prism 3; Between adjacent two the first prisms 2, be provided with three the second prisms 3; The setting of triangular prism structure layer is connected to the top of substrate 1; Atomizing layer 4 is arranged on the below of substrate 1, and substrate 1 adopts pet substrate.
Technique scheme also has front protecting film and back protection film; The setting of front protecting film is connected to the top of structural sheet, by special construction of the present utility model, designs, and can, when peeling off this diaphragm, reduce leaving over of cull.
Described in technique scheme, the first prism 2 is highly 18 μ m, and drift angle is 90 °.
Described in technique scheme, the second prism 3 is highly 15 μ m, and drift angle is 90 °.
This scheme has two kinds of prism structures, and diaphragm contacts with the first prism 2, has therefore reduced the contact area of diaphragm and brightness enhancement film.When brightness enhancement film assembling is used, peel off diaphragm and can reduce cull; The first prism 2 in two kinds of prisms also has the effect of protection brightness enhancement film simultaneously.Brightness enhancement film equal fragile prism structure layer in touch, stack, assembling process, and the first prism 2 can protect the second prism 3 to avoid damaging, thus reach the object of protection.
Compare with the mode of prior art, the utlity model has following advantage:
1, simple in structure, prism adopts the design of high five low (first prism 2 adds five the second prisms 3), and height is staggered, reduces cull and leaves over;
2, the structural design that the first prism 2 adopts higher than the second prism 3, has scratch resistant, to reduce static pollution effect;
3, reduce the damage in the processes such as touch, product stack, assembling.
The brightness enhancement film that the utility model provides, prism adopts the structure of height combination, is called for short high five ends: between two adjacent high triangular prism structures (the first prism 2), be provided with five contour end triangular prism structures (the second prism 3).The high triangular prism structure on brightness enhancement film surface can support another sheet brightness enhancement film stacking, and so just can avoid brightness enhancement film to stack or backlight module when assembling produces the dirty phenomenon of static; High triangular prism structure contacts with diaphragm, and low triangular prism structure does not contact with diaphragm, thereby has just reduced the contact area of diaphragm and prism structure layer, so can effectively reduce cull when peeling off diaphragm; High triangular prism structure can be in the process of the packing of brightness enhancement film, carrying, use preferably the low triangular prism structure of protection avoid the damages such as scratch.Back coating can reduce the visual bright rays phenomenon of liquid crystal display, can make source light homogenising and the forward luminance raising of backlight module, can reduce the probability that occurs the optics flaws such as Newton ring or moir Lou Lou patterns phenomenon because of optical interference.Meanwhile, the low triangular prism structure on brightness enhancement film surface can be by most light optically focused, thereby make the brightness of brightness enhancement film increase by 50%～70%.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a brightness enhancement film, comprise substrate and prism, described prism is arranged on described substrate, it is characterized in that, described prism is triangular prism, and described prism includes the first prism and the second prism, the height of described the first prism is higher than the height of described the second prism, described the second prism that is no less than five forms the second prism group, and described the first prism and described the second prism group are interspersed to be arranged, and whole described prisms are horizontally disposed with along its length mutually.
2. brightness enhancement film according to claim 1, is characterized in that, whole described prisms uniformly-spaced arrange.
3. brightness enhancement film according to claim 2, is characterized in that, described the second prism group includes five described the second prisms.
4. brightness enhancement film according to claim 3, is characterized in that, described prism is isoceles triangle prism.
5. brightness enhancement film according to claim 4, is characterized in that, described prism includes drift angle, and the angle of described drift angle is 85 ° to 95 °.
6. brightness enhancement film according to claim 5, is characterized in that, described prism includes drift angle, and described drift angle is arc chord angle, and the arc radius of described arc chord angle is not more than 2 μ m.
7. brightness enhancement film according to claim 5, is characterized in that, described substrate is pet substrate, and described prism is arranged at a side of described substrate, and the opposite side of described substrate is provided with atomizing layer, and the degree of atomization of described atomizing layer is 20% to 30%.
8. according to the brightness enhancement film described in claim 1 to 7 any one, it is characterized in that, the height of described the first prism is 17 μ m to 19 μ m.
9. brightness enhancement film according to claim 8, is characterized in that, the height of described the second prism is 14 μ m to 16 μ m.
10. brightness enhancement film according to claim 9, is characterized in that, the surface roughness Ra of described prism is not more than 20 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320315207.9U CN203405590U (en) | 2013-06-03 | 2013-06-03 | Brightness enhancement film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320315207.9U CN203405590U (en) | 2013-06-03 | 2013-06-03 | Brightness enhancement film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203405590U true CN203405590U (en) | 2014-01-22 |
Family
ID=49941520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320315207.9U Expired - Fee Related CN203405590U (en) | 2013-06-03 | 2013-06-03 | Brightness enhancement film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203405590U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105961084A (en) * | 2016-05-10 | 2016-09-28 | 林智生 | Thermal insulation flowerpot |
| CN107179573A (en) * | 2017-06-19 | 2017-09-19 | 张家港康得新光电材料有限公司 | Composite membrane and preparation method thereof |
| CN107572135A (en) * | 2017-09-26 | 2018-01-12 | 广东美的制冷设备有限公司 | Packaging structure and its manufacture method and air-conditioning device assembly |
-
2013
- 2013-06-03 CN CN201320315207.9U patent/CN203405590U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105961084A (en) * | 2016-05-10 | 2016-09-28 | 林智生 | Thermal insulation flowerpot |
| CN105961084B (en) * | 2016-05-10 | 2020-04-28 | 林智生 | Heat-insulation flowerpot |
| CN107179573A (en) * | 2017-06-19 | 2017-09-19 | 张家港康得新光电材料有限公司 | Composite membrane and preparation method thereof |
| CN107572135A (en) * | 2017-09-26 | 2018-01-12 | 广东美的制冷设备有限公司 | Packaging structure and its manufacture method and air-conditioning device assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20170603 |