CN102419458A - Prism structural bright enhancement film with anti-scraping property - Google Patents
Prism structural bright enhancement film with anti-scraping property Download PDFInfo
- Publication number
- CN102419458A CN102419458A CN2011104334474A CN201110433447A CN102419458A CN 102419458 A CN102419458 A CN 102419458A CN 2011104334474 A CN2011104334474 A CN 2011104334474A CN 201110433447 A CN201110433447 A CN 201110433447A CN 102419458 A CN102419458 A CN 102419458A
- Authority
- CN
- China
- Prior art keywords
- prism
- enhancement film
- xsect
- bright enhancement
- prism unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007790 scraping Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 239000004925 Acrylic resin Substances 0.000 claims description 7
- 229920000178 Acrylic resin Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- -1 polyethylene terephthalate Polymers 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- YTLYLLTVENPWFT-UPHRSURJSA-N (Z)-3-aminoacrylic acid Chemical compound N\C=C/C(O)=O YTLYLLTVENPWFT-UPHRSURJSA-N 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract 1
- 238000009826 distribution Methods 0.000 description 9
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Images
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention relates to a bright enhancement film, in particular to a prism structural bright enhancement film with an anti-scraping property. The bright enhancement film comprises a base material and a prism structural layer, wherein the prism structural layer is positioned on the base material and consists of a first prism unit structure and a second prism unit structure; the second prism unit structure has a plurality of discontinuous bulged structures; all the bulged structures on second prism units have the same length; adjacent bulged structures on all the second prism units have unequal intervals; and at least two adjacent second prism units have unequal intervals. Due to the adoption of the bulged structures of the second prism units, the prism structure bright enhancement film with the anti-scraping property can prevent sharp edges and corners from being scraped when the film is assembled in the actual application process, and has an anti-scraping function. The bulged structures are only parts of the second prism units, and the other parts of the second prism units still have sharp edge and corner structures, so that the film has a higher optical gain property compared with the prior art.
Description
Technical field
The invention discloses a kind of bright enhancement film, particularly about a kind of be applied to LCD (liquid crystal display, LCD) have an anti-prism structure bright enhancement film of characteristic of scraping.
Background technology
At present; Bright enhancement film (BEF; Brightness Enhancement Film) the normal bright enhancement film (BEF) of using increases display brightness and the energy of practicing thrift the display battery apparatus in the display devices such as the light that light source is sent, especially monitor to be used for converging to be widely used in illuminating module.The principle of bright enhancement film is through refraction and reflection the light outside the directive observer visual angle to be adjusted within the observer visual angle, has so just improved the utilization factor of luminous energy that light source sends.
Common bright enhancement film (BEF) is to constitute in order to the prism bar that converges light by many, and these prism bar are arranged according to a direction, form a prism array, shown in Figure 1A.Conventional prism structure bright enhancement film in practical application is owing to can be used with other bloomings, and the sharp corners to prism structure causes scratch easily, thereby influences optical quality.In order to address this problem; U.S. Pat 7142767 discloses a kind of anti-brightness enhancement film of scraping function that has, and shown in Figure 1B, this brightness enhancement film comprises base material 1 ' and prism structure layer 2 '; Prism structure layer 2 ' is positioned on the base material 1 '; Its structure is the prism columns of fillet or platform in traditional brightness enhancement film prism array, increasing some tops, and these prism heights are higher than its peripheral ordinary construction prism columns, thereby can play the anti-effect that scratches.Yet this kind structure can cause the decline of optical gain values because cancellation wedge angle in whole prism columns top changes fillet or platform structure into.Therefore, must improve existing prism structure bright enhancement film in order to address the above problem.
Summary of the invention
The technical matters that (one) will solve
The purpose of this invention is to provide a kind of anti-prism structure bright enhancement film of characteristic of scraping that has, in order to converging the light that sends from light source, pass the dispersion angle behind this bright enhancement film with adjustment from the light source emitted light, and improve illuminating module and produce yield.
(2) technical scheme
To achieve these goals, the present invention provides a kind of base material and prism structure layer of comprising, said prism structure layer is positioned on the said base material; This prism structure layer is made up of several the first prism unit structure and second prism unit structures of arranging by same direction; The xsect of the said first prism unit structure is an isosceles triangle, and the said second prism unit structure has some discontinuous bulge-structures on the direction of extension of prism unit; The equal in length of each bulge-structure on said second prism; The interval of adjacent bulge-structure is unequal on each second prism unit; Spacing between at least two second adjacent prism unit is unequal.
Further, the drift angle angle of the said first prism unit structure xsect is 60 °-120 °, highly is H1, and H1 is between 10 μ m-100 μ m.
Further, the non-bossing xsect of described second prism unit is and the identical isosceles triangle of the said first prism unit xsect, and its bossing height is H2, H2 be the said first prism cross-section height H 1 1.05-1.5 doubly.
Further; The non-bossing xsect of described second prism unit is and the identical isosceles triangle of the said first prism unit xsect; Lug boss office xsect is that drift angle is the isosceles triangle of fillet, and said drift angle radius of corner is between 0.5-2 μ m.
Further, the non-bossing xsect of described second prism unit is and the identical isosceles triangle of the said first prism unit xsect that lug boss office xsect is an isosceles trapezoid, the 0.03-0.2 that its upper base edge lengths is a bottom length times.
Further, said base material is selected from a kind of in polyethylene terephthalate and the polymethylmethacrylate, and the material of said prism structure layer is a UV-cured resin.
Further, said UV-cured resin comprises a kind of in epoxy acrylic resin, aminoacrylic acid resin, polyvinyl resin, polyurethane acrylic resin, the polyester acrylic resin.
(3) beneficial effect
Beneficial effect of the present invention is, because the bulge-structure of second prism unit to the scratch of sharp corners, plays anti-function of scraping in the time of can in practical application, avoiding the diaphragm assembling.In addition, because bulge-structure only accounts for the second prism unit part ratio, remainder is sharp-pointed angular structures still, and with respect to prior art, the present invention has higher optical gain performance.
Description of drawings
Figure 1A is the perspective view of conventional prism structure bright enhancement film;
Figure 1B is the anti-perspective view of scraping the prism structure bright enhancement film of tradition;
Wherein, 1 ' is base material, and 2 ' is the prism structure layer;
Fig. 2 is a prism structure bright enhancement film perspective view in the embodiment of the invention 1;
Fig. 3 A is a prism structure bright enhancement film front view in the embodiment of the invention 1;
Wherein, 112A is the first prism structure unit; 112B is the second prism structure unit; H1 is the height of the first prism structure unit, and H2 is the height of the bossing of the second prism structure unit, and R is that the bossing xsect of the second prism structure unit is the radius of the fillet drift angle of isosceles right triangle;
Fig. 3 B is a prism structure bright enhancement film vertical view in the embodiment of the invention 1;
Wherein, L1 is the length of the second prism structure unit raising part, and L2 is the interval of two convex parts adjacent in the second prism structure unit;
Fig. 4 A is the viewing angle distribution curve map that does not increase the common prism vertical direction of film material in the prior art;
Fig. 4 B is the viewing angle distribution curve map that does not increase the common prism horizontal direction of film material in the prior art;
Fig. 4 C is the viewing angle distribution curve map of conventional prism structure brightness enhancement film vertical direction in the prior art;
Fig. 4 D is the viewing angle distribution curve map of conventional prism structure brightness enhancement film horizontal direction in the prior art;
Fig. 4 E is the viewing angle distribution curve map of the brightness enhancement film embodiment of the invention one prism structure vertical direction;
Fig. 4 F is the viewing angle distribution curve map of the brightness enhancement film embodiment of the invention one prism structure horizontal direction;
Fig. 5 is a prism structure bright enhancement film perspective view in the embodiment of the invention two;
Wherein, the 100th, anti-structure bright enhancement film, the 102nd, the base material scraped; The 108th, the prism structure layer, 106 is first optical surfaces, 104 is second optical surfaces; 110B is the direction of extension of prism structure unit; 110A is the orientation of prism structure unit, and 112A is the first prism structure unit, and 112B is the second prism structure unit;
Fig. 6 is a prism structure bright enhancement film front view in the embodiment of the invention two;
Wherein, H1 is the height of the first prism structure unit, and H3 is the height of the bossing of the second prism structure unit, and d is that the bossing xsect of the second prism structure unit is the upper base length of isosceles trapezoid;
Fig. 7 is a prism structure bright enhancement film vertical view in the embodiment of the invention two;
Wherein, L1 is the length of the second prism structure unit raising part, and L2 is the interval of two convex parts adjacent in the second prism structure unit;
Fig. 8 A is the viewing angle distribution curve map of the brightness enhancement film embodiment of the invention two prism structure vertical direction;
Fig. 8 B is the viewing angle distribution curve map of the brightness enhancement film embodiment of the invention two prism structure horizontal directions.
Embodiment
Embodiment 1
Shown in Fig. 2,3B, the embodiment of the invention has the anti-prism structure bright enhancement film 100 of scraping characteristic and comprises base material 102 and prism structure layer 108.This base material 102 has first optical surface 106 and is positioned at aspectant second optical surface 104 of first optics.Prism structure layer 108 is arranged on first optical surface 106, and this prism structure layer 108 is lined up array by several the first prism unit structure 112A and the second prism structure unit 112B by direction 110A and constituted, and the prism direction of extension is 110B.The second prism unit structure 112B has some discontinuous bulge-structures on the direction of extension of prism unit; The length L 1 of each bulge-structure on the second prism unit 112B equates that L1 is between 50 μ m-500mm, and the interval L2 of adjacent bulge-structure is unequal on each second prism unit 112B, and L2 is between 100 μ m～500mm; Spacing L3 between at least two second adjacent prism unit 112B is unequal.On the prism arrangement direction, can whenever one second prism unit 112B be set at a distance from 1～100 first prism unit 112A.
The preparation method of brightness enhancement film is: coating polyethylene resin bed on base material 102 first optical surfaces 106; With having the polyvinyl resin of uV curable is carried out press mold with the mold wheel of the microstructure complementary structure of prism structure layer 108; Can make the polyvinyl resin layer form required microstructure; Use UV-irradiation subsequently again, the UV-cured resin layer that forms microstructure is solidified, thereby prism structure layer 108 is arranged on first optical surface 106 of base material 102.
Shown in Fig. 3 A, first its xsect of prism unit structure 112A is an isosceles right triangle in this prism structure layer 108, and height H 1 is 25 μ m.Have some bulge-structures on the direction of extension of the second prism unit 112B; The second prism unit 112B xsect at non-bossing is and the identical isosceles right triangle of the first prism unit 112A xsect; Highly also be H1; Bossing height H 2 is 27 μ m, and lug boss office xsect is that drift angle is the isosceles right triangle of fillet, and radius of corner R is 1 μ m.
Some bulge-structures among the second prism structure 112B can effectively prevent in the illuminating module production run injury of scratching the sharp-pointed drift angle of first prism structure is caused because of friction with other diaphragms, thereby ensure the production yield of illuminating module.In addition, still comprise the non-dried bulge-structure of part among the second prism structure 112B, this part is the sharp-pointed structure identical with the first prism structure 112A, can avoid the reduction of optical gain.
Shown in Fig. 4 A-4F, be the optical gain of brightness enhancement film among the embodiment 1 and the relatively performance of no film material and traditional structure brightness enhancement film.Wherein: the metering system of briliancy distribution curve is: with the planar light source of a uniformly light-emitting as measurement light source; To test diaphragm is covered on the light source; Use brightness photometer perpendicular alignmnet diaphragm central authorities, define test angle this moment is 0 °, is the center of circle with diaphragm central authorities then; Brightness photometer is distributed in level and several angles of vertical direction rotation, records a series of data and constitute the briliancy scatter chart.It is defined as horizontal direction along the prism unit direction of extension, is defined as vertical direction along the prism arrangement direction; Luminance gain is defined as 1 during no diaphragm.
Can know by Fig. 4 E-4F; Traditional structure brightness enhancement film luminance gain is 1.59; And the luminance gain in the present embodiment 1 is 1.52, do not have obvious decline, and visible angle does not have significant change; Take all factors into consideration the anti-characteristic of scraping of brightness enhancement film according to the invention again, but the brightness enhancement film of knowledge capital invention all has higher advantage aspect optical appearance and the assembly technology.
Shown in Fig. 5-7, the xsect of the first prism unit structure 112A in the present embodiment is an isosceles right triangle, and height H 1 is 25 μ m.The second prism structure bossing xsect is that the base angle is the isosceles trapezoid of 45 degree, and trapezoidal height H 3 is 28 μ m, and the upper base length d is 2 μ m, and is as shown in Figure 6.The material of base material 102 is polymethylmethacrylates, and the material of prism structure layer 108 is the polyurethane acroleic acid fat of uV curable.
The preparation method of brightness enhancement film is: coating ultraviolet light curing resin epoxy acrylic resin on base material 102 first optical surfaces 106; Mold wheel with having with the microstructure complementary structure of prism structure layer 108 is carried out press mold to UV-cured resin; Can make the UV-cured resin layer form required microstructure; Use UV-irradiation subsequently again; The UV-cured resin layer that forms microstructure is solidified, thereby prism structure layer 108 is arranged on first optical surface 106 of base material 102, the cross sectional shape of the bossing of its second prism structure unit is an isosceles trapezoid.Bossing has equal lengths L1 in the prism direction of extension, and L1 is 50 μ m; Any two convex parts adjacent have incomplete equal spacing L2 on the prism direction of extension, and L2 is between 100 μ m～500mm; On the prism arrangement direction, whenever one second prism unit 112B is set at a distance from 1～100 first prism unit 112A.
Can know by Fig. 8 A-8B; Compare with traditional structure brightness enhancement film luminance gain; Luminance gain in the present embodiment 2 does not have obvious decline; And visible angle does not have significant change, takes all factors into consideration the anti-characteristic of scraping of brightness enhancement film according to the invention again, but the brightness enhancement film of knowledge capital invention all has higher advantage aspect optical appearance and the assembly technology.
Description of the invention provides for example with for the purpose of describing, and is not the disclosed form that exhaustively perhaps limit the invention to.A lot of modifications and variation are obvious for those of ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment that have various modifications that the present invention's design is suitable for special-purpose.
Claims (7)
1. one kind has and anti-scrapes the prism structure bright enhancement film of characteristic, it is characterized in that comprise base material and prism structure layer, said prism structure layer is positioned on the said base material; This prism structure layer is made up of several the first prism unit structure and second prism unit structures of arranging by same direction; The xsect of the said first prism unit structure is an isosceles triangle, and the said second prism unit structure has some discontinuous bulge-structures on the direction of extension of prism unit; The equal in length of each bulge-structure on said second prism unit; The interval of adjacent bulge-structure is unequal on each second prism unit; Spacing between at least two second adjacent prism unit is unequal.
According to claim 1 said have anti-scrape the prism structure bright enhancement film of characteristic, it is characterized in that the drift angle angle of the said first prism unit structure xsect is 60 °-120 °, highly be H1, H1 is between 10 μ m-100 μ m.
3. has an anti-prism structure bright enhancement film of characteristic of scraping according to claim 2 is said; It is characterized in that; The non-bossing xsect of described second prism unit is and the identical isosceles triangle of the said first prism unit xsect; Its bossing height is H2, and H2 is 1.05-1.5 a times of the said first prism cross-section height H 1.
4. has an anti-prism structure bright enhancement film of characteristic of scraping according to claim 3 is said; It is characterized in that; The non-bossing xsect of described second prism unit is and the identical isosceles triangle of the said first prism unit xsect; Lug boss office xsect is that drift angle is the isosceles triangle of fillet, and said drift angle radius of corner is between 0.5-2 μ m.
5. has an anti-prism structure bright enhancement film of characteristic of scraping according to claim 4 is said; It is characterized in that; The non-bossing xsect of described second prism unit is and the identical isosceles triangle of the said first prism unit xsect; Lug boss office xsect is an isosceles trapezoid, and the 0.03-0.2 that its upper base edge lengths is a bottom length doubly.
According to claim 1 said have anti-scrape the prism structure bright enhancement film of characteristic, it is characterized in that said base material is selected from a kind of in polyethylene terephthalate and the polymethylmethacrylate, the material of said prism structure layer is a UV-cured resin.
7. has an anti-prism structure bright enhancement film of characteristic of scraping according to claim 6 is said; It is characterized in that said UV-cured resin comprises a kind of in epoxy acrylic resin, aminoacrylic acid resin, polyvinyl resin, polyurethane acrylic resin, the polyester acrylic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104334474A CN102419458A (en) | 2011-12-21 | 2011-12-21 | Prism structural bright enhancement film with anti-scraping property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104334474A CN102419458A (en) | 2011-12-21 | 2011-12-21 | Prism structural bright enhancement film with anti-scraping property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102419458A true CN102419458A (en) | 2012-04-18 |
Family
ID=45943951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104334474A Pending CN102419458A (en) | 2011-12-21 | 2011-12-21 | Prism structural bright enhancement film with anti-scraping property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102419458A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1996099A (en) * | 2005-12-31 | 2007-07-11 | 财团法人工业技术研究院 | Optical modulation assembly |
| JP2009122440A (en) * | 2007-11-15 | 2009-06-04 | Idemitsu Unitech Co Ltd | Prism member and optical member |
| CN101529280A (en) * | 2006-11-09 | 2009-09-09 | 夏普株式会社 | Prism sheet and liquid crystal display |
| CN101630031A (en) * | 2007-11-16 | 2010-01-20 | 长兴化学工业股份有限公司 | Optical film |
| CN102236122A (en) * | 2010-04-30 | 2011-11-09 | 中强光电股份有限公司 | Optical film |
-
2011
- 2011-12-21 CN CN2011104334474A patent/CN102419458A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1996099A (en) * | 2005-12-31 | 2007-07-11 | 财团法人工业技术研究院 | Optical modulation assembly |
| CN101529280A (en) * | 2006-11-09 | 2009-09-09 | 夏普株式会社 | Prism sheet and liquid crystal display |
| JP2009122440A (en) * | 2007-11-15 | 2009-06-04 | Idemitsu Unitech Co Ltd | Prism member and optical member |
| CN101630031A (en) * | 2007-11-16 | 2010-01-20 | 长兴化学工业股份有限公司 | Optical film |
| CN102236122A (en) * | 2010-04-30 | 2011-11-09 | 中强光电股份有限公司 | Optical film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201935118U (en) | Prism sheet, backlight source and liquid crystal display thereof | |
| CN102540294B (en) | A kind of bright enhancement film | |
| US9134463B2 (en) | Optical film having improved optical performance, and backlight unit comprising the same | |
| CN102621608A (en) | Brightness enhancement film and manufacturing mold and manufacturing method thereof | |
| CN104238182B (en) | Liquid crystal indicator | |
| CN104698518A (en) | Prismatic lens, backlight module adopting prismatic lens and liquid crystal display | |
| CN108008576A (en) | A kind of diffusion sheet and preparation method thereof, backlight module and display device | |
| CN102588828A (en) | Panel spliced type backlight module | |
| CN103513307A (en) | Brightness enhancement film matched with flat-panel displayer and manufacturing method thereof | |
| CN204479779U (en) | Brightness enhancing film with pyramid structure | |
| CN203240403U (en) | Backlight module and LCD (liquid crystal display) device | |
| CN102436021B (en) | Prism-structure bright enhancement film with raised structures in non-uniform distribution | |
| US11320662B2 (en) | Light deflection film and display device using the same | |
| CN205450322U (en) | A high brightness anti-blue light brightness enhancement film | |
| CN102455449A (en) | Prism-structured brightness enhancement film with anti-scraping property | |
| CN203836775U (en) | Backlight module, prismatic lens of backlight module and display device | |
| CN103091741A (en) | Light enhancement film and display device using the same | |
| CN102445723A (en) | Prism-structured brightness enhancement film with scratch-resistant characteristic | |
| CN104635394A (en) | Array substrate and liquid crystal display panel | |
| CN203164449U (en) | Brightness enhancement film and display device | |
| CN102419458A (en) | Prism structural bright enhancement film with anti-scraping property | |
| CN202372657U (en) | Prism structure brightness enhancement film | |
| CN102520469A (en) | Bright enhancement film with projection structures distributed uniformly | |
| CN102445722A (en) | Prism-structured brightness enhancement film with scratch-resistant characteristic | |
| CN202256735U (en) | Composite structure brightness enhancing film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120418 |