CN103018802B - A kind of brightness enhancement film with anti-scratch function - Google Patents
A kind of brightness enhancement film with anti-scratch function Download PDFInfo
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- CN103018802B CN103018802B CN201210501492.3A CN201210501492A CN103018802B CN 103018802 B CN103018802 B CN 103018802B CN 201210501492 A CN201210501492 A CN 201210501492A CN 103018802 B CN103018802 B CN 103018802B
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- 230000003287 optical effect Effects 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 52
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- 229920005989 resin Polymers 0.000 claims description 22
- 239000004925 Acrylic resin Substances 0.000 claims description 8
- -1 polyethylene terephthalate Polymers 0.000 claims description 8
- 229920000178 Acrylic resin Polymers 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 4
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 4
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 229920006026 co-polymeric resin Polymers 0.000 claims description 2
- 229920002521 macromolecule Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 18
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 230000003678 scratch resistant effect Effects 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
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Abstract
A kind of brightness enhancement film with anti-scratch function, comprise base material and prism structural layer, described prism structural layer is positioned on described base material, described base material has the first relative optical surface and the second optical surface, described prism structural layer is positioned on described base material, described prism structural layer is positioned on the first optical surface, and bottom surface is relative with the second optical surface; Described prism structural layer is made up of multiple prism unit structure arranged by same direction, and the ridge portion of described prism unit structure is provided with some discontinuous bulge-structures; The projection in prism unit structure ridge portion is distributed in prism direction of extension; Described prism unit structure do not arrange bulge-structure place the xsect that cuts by the plane perpendicular to prism direction of extension be isosceles triangle.The invention enables the technique during mould of the brightness enhancement film of producing anti-scratch function significantly to simplify, avoid and mould is cut on a large scale, improve production efficiency, reduce production cost, improve the production yield of luminescent film group.
Description
Technical field
The invention discloses a kind of brightness enhancement film, particularly a kind of bright enhancement film with anti-scratch function being applied to liquid crystal display.
Background technology
At present, bright enhancement film (BEF) is widely used in illuminating module to be used for converging the light that sends of light source, especially often applies the energy that bright enhancement film (BEF) increases display brightness and saves display battery apparatus in the display device such as monitor.The principle of bright enhancement film is by reflect and the light reflected outside by directive observer visual angle is adjusted within observer visual angle, which improves light source send the utilization factor of luminous energy.
Common bright enhancement film (BEF, Brightness Enhancement Film) formed in order to the prism bar converging light by many, and these prism bar arrange according to a direction, form a prism array, as shown in Figure 1.In actual applications conventional prism structure bright enhancement film due to can with other bloomings with the use of, easily scratch is caused to the sharp corners of prism structure, thus affects optical quality.In order to address this problem, US Patent No. 7142767 discloses a kind of brightness enhancement film with anti-scratch function, its structure is increase the prism columns that some tops are fillet or platform in traditional brightness enhancement film prism array, these prism heights higher than the ordinary construction prism columns of its periphery, thus can play anti-scratch effect of rubbing.But this kind of structure is owing to cancelling wedge angle in whole prism columns top, changes fillet or platform structure into, can cause the decline of optical gain values, Chinese Patent Application No. is 201110433666.2, 201110433691.0, 201110433447.4, 201110433682.1, 201110433679.X, 201110433648.4, 201110433684.0, 201110433676.6, 201120541512.0 propose a kind of discontinuous bulge-structure, to overcome the problem of the optical gain decline caused because of the anti-scratch fillet of introducing or the straight angle, but reality is when the mould structure that this blooming of production is used, engraving cutter is needed to carry out cutting in a big way to mould, cutter is caused easily to wear and tear, and need the longer process-cycle.For this reason, the present invention proposes the anti-scratch structure of a kind of novel discontinuous projection, the problems such as above-mentioned optical property, shop characteristic can be solved simultaneously.
Summary of the invention
The object of the invention is to propose a kind of brightness enhancement film with anti-scratch function, the production mould that the anti-scratch structure of discontinuous projection solving existing anti-scratch brightness enhancement film causes easily causes tool wear, and the problem that the production and processing cycle is long.
For reaching this object, the present invention by the following technical solutions:
A kind of brightness enhancement film with anti-scratch function, comprise base material and prism structural layer, described prism structural layer is positioned on described base material, described base material has the first relative optical surface and the second optical surface, described prism structural layer is positioned on described base material, described prism structural layer is positioned on the first optical surface, and bottom surface is relative with the second optical surface; Described prism structural layer is made up of multiple prism unit structure arranged by same direction, and the ridge portion of described prism unit structure is provided with some discontinuous bulge-structures; The projection in prism unit structure ridge portion is distributed in the direction of extension of prism; Described prism unit structure do not arrange bulge-structure place the xsect that cuts by the plane perpendicular to prism direction of extension be isosceles triangle.
Preferably, described prism unit structure do not arrange bulge-structure place the xsect isosceles triangle corner angle A1 that cuts by the plane perpendicular to prism direction of extension between 60 ° ~ 120 °, height H 1 is between 5 μm ~ 500 μm.
Preferably, described bulge-structure the xsect that cuts by the plane perpendicular to prism direction of extension be the class isosceles triangle figure that two base angles are equal, drift angle is smooth convex outer curve, and two hypotenuse angle angle A 2 be less than prism structure the cross-sectional triangle corner angle A1 that cuts by same cross section.
Preferably, described bulge-structure summit to prism unit structure by through this bulge-structure summit and perpendicular to prism direction of extension plane the distance H2 on cross-sectional triangle base that cuts be greater than prism unit feature cross-section triangle height H1.
Preferably, described bulge-structure summit to bulge-structure by through bulge-structure summit and perpendicular to prism direction of extension plane the distance h1 on xsect base that cuts be less than prism unit structure by the plane perpendicular to prism direction of extension the cross-sectional triangle height H 1 of cutting.
Preferably, described bulge-structure by through bulge-structure summit and perpendicular to the first optical surface, be parallel to prism direction of extension plane the xsect that cuts be the X-Y scheme that smooth curve and straight line are formed, wherein the length L of straight line is between 2 μm ~ 106 μm.
Preferably, in the bulge-structure on same prism, two adjacent bulge-structures are had at least not overlap each other.
Preferably, the material of described base material is macromolecule copolymer resin, and the material of described prism structural layer is UV-cured resin.
Preferably, described substrate material is polyethylene terephthalate or polymethylmethacrylate, and the material of described prism structure is epoxy acrylic resin or amino acrylic resin or polyvinyl resin or polyurethane acrylic resin or polyester acrylate resin.
Comprise the liquid crystal display of described prism structure brightness enhancement film.
The invention has the beneficial effects as follows: by improving shape and the direction of brightness enhancement film projection structure, make it while the anti-scratch function of maintenance, overcome the problem that bulge-structure causes optical gain to decline, and due to brightness enhancement film projection vibrational power flow reasonable, the technique during mould producing this kind of blooming is significantly simplified, avoids and mould is cut on a large scale, improve production efficiency, reduce production cost, improve the production yield of luminescent film group.
Accompanying drawing explanation
Fig. 1 is existing anti-scratch function structure of reflection reducting coating schematic diagram;
Fig. 2 is the embodiment of the present invention 1 structure of reflection reducting coating schematic diagram;
Fig. 3 A be do not arrange in Fig. 2 bulge-structure the plane of part by vertical prism direction of extension 110B and through prism unit bulge-structure 120 summit the shape of cross section schematic diagram that intercepts;
Fig. 3 B be arrange in prism unit 118 in Fig. 1 bulge-structure 120 the plane of part by vertical prism direction of extension 110B and through prism unit projection structure 120 summit the shape of cross section schematic diagram that intercepts;
Fig. 3 C is that in Fig. 1, brightness enhancement film 100 is parallel to prism direction of extension 110B and the plane 106 of vertical first optical surface, the flat shape schematic diagram that intercepts through prism unit bulge-structure 120 summit;
Fig. 4 is embodiment 2 structure of reflection reducting coating schematic diagram;
Fig. 5 A be do not arrange in prism unit 218 in Fig. 4 bulge-structure 220 the plane of part by vertical prism direction of extension 210B and through prism unit bulge-structure 220 summit the shape of cross section schematic diagram that intercepts;
Fig. 5 B be arrange in prism unit 218 in Fig. 4 bulge-structure 220 the plane of part by vertical prism direction of extension 210B and through prism unit bulge-structure 220 summit the shape of cross section schematic diagram that intercepts;
Fig. 5 C is the vertical view of Fig. 4;
Fig. 5 D is that in Fig. 4, brightness enhancement film 200 is parallel to prism direction of extension 210B and perpendicular to the first optical surface 206, the flat shape schematic diagram that intercepts through prism unit bulge-structure 220 summit.
Fig. 6 is the embodiment of the present invention 3 structure of reflection reducting coating schematic diagram;
Fig. 7 A be part that bulge-structure 320 is not set in prism unit 318 in Fig. 6 the shape of cross section schematic diagram that intercepts by the plane perpendicular to prism direction of extension 310B;
Fig. 7 B be part that bulge-structure 320 is set in prism unit 318 in Fig. 6 the shape of cross section schematic diagram that intercepts by the plane perpendicular to prism direction of extension and through bulge-structure 320 summit;
Fig. 7 C is that in Fig. 6, brightness enhancement film 300 is parallel to prism direction of extension 310B and perpendicular to the first optical surface 306, the graphics shape schematic diagram that intercepts through the plane on prism unit bulge-structure 320 summit;
Fig. 8 is embodiments of the invention 4 structural representations;
Fig. 9 A be part that bulge-structure 420 is not set in prism unit 418 in Fig. 8 the shape of cross section schematic diagram that intercepts by the plane perpendicular to prism direction of extension 410B;
Fig. 9 B be in Fig. 8 in bulge-structure 420 is set in prism unit 418 part the shape of cross section schematic diagram that intercepts by the plane perpendicular to prism direction of extension and through bulge-structure 420 summit;
Fig. 9 C is that in figure, brightness enhancement film 400 is parallel to prism direction of extension 410B and the flat shape schematic diagram that intercepts through prism unit projection structure summit of the plane of vertical first optical surface 406.
Embodiment
Be illustrated in figure 1 the bright enhancement film of prism structure structural representation in the prior art mentioned in background technology with scratch-resistant characteristic, described bright enhancement film includes a base material 002, one prism structure 008, base material 002 has the second optical surface 004 that the first optical surface 003 and are positioned at the first optical surface, prism structural layer 008 is arranged on the first optical surface 003, this prism structural layer 008 is lined up array by a plurality of first prism unit structure 011A and a plurality of second prism structure cellular construction 011B by direction 010A and formed, the direction of extension of prism unit structure is 010B, the direction of extension of the second prism unit structure 011B have some bulge-structures, and this bulge-structure has not exclusively equal length in prism direction of extension.The injury that this structure effectively can prevent from scratching because rubbing with other diaphragm in luminescent film group production run and cause the sharp-pointed drift angle of the first prism unit structure, and the non-bulge-structure of the second prism unit structure 011B and the pointed structures identical with the first prism unit structure 011A, for avoiding the reduction of optical gain, but it is following unfavorable that the brightness enhancement film of this kind of structure but has when producing: when the mould structure that this blooming of production is used, graver is needed to carry out cutting in a big way to grinding tool, cutter is caused easily to wear and tear, and need the longer process-cycle.
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
Embodiment 1:
As Fig. 2, Fig. 3 (A, B, C) are depicted as one embodiment of the invention
In figure, 2 for having the schematic diagram of the prism structure brightness enhancement film 100 of scratch-resistant characteristic, and brightness enhancement film 100 includes base material 102, prism structural layer 108.Base material 102 has first optical surface 106 second optical surface 104 relative with the first optical surface with.Prism structural layer 108 is arranged on the first optical surface 106, this prism structural layer 108 is arranged by same direction 110A by multiple prism unit 118, prism unit 118 is all pressed same direction 110B and is stretched, have in layers of prisms 108 in some prism unit 118 and be provided with some discontinuous bulge-structures 120, its rule is: be provided with the prism unit of bulge-structure with spaced without bulge-structure prism unit.
Fig. 3 A for do not arrange in prism unit 118 in embodiment 1 plane of part by vertical prism direction of extension 110B and through prism unit bulge-structure 120 summit of bulge-structure the xsect that intercepts, this xsect is isosceles triangle, corner angle A1 is 90 °, and height H 1 is 25um.
Fig. 3 B for arrange in prism unit 118 in embodiment 1 plane of part by vertical prism direction of extension 110B and through prism unit projection structure 120 summit of bulge-structure 120 the xsect that intercepts.The class isosceles triangle figure of the xsect of this bulge-structure 120 to be drift angles be fillet, radius of corner R is 3 μm, vertical range H2 bottom summit, cross section to prism unit 118 is 27.5um, the vertical range h1 of xsect summit bottom the xsect of bulge-structure 120 of bulge-structure 120 is 17.5um, and bulge-structure 120 cross section dual-side angle angle A 2 is 80 °.
Fig. 3 C is for having scratch-resistant characteristic brightness enhancement film 100 and be parallel to prism direction of extension 110B and the plane 106 of vertical first optical surface, the plane that intercepts through prism unit bulge-structure 120 summit in embodiment 1, in prism unit 118 direction of extension, the spacing L1 of 110B adjacent protrusion structure 120 is 60um, and the length L2 of bossing is 40um.
Described base material 102 material is selected from polyethylene terephthalate, and described prism structural layer 108 material is selected from polyethylene kind UV-cured resin.The preparation method of described brightness enhancement film is: coating ultraviolet light curing resin bed on base material 102 first optical surface 106, by the mold wheel had with the microstructure complementary structure of prism structural layer 108, press mold is carried out to UV-cured resin, UV-cured resin layer can be made to form required microstructure, use UV-irradiation more subsequently, make the UV-cured resin layer solidification forming microstructure, thus prism structural layer 108 is arranged on the first optical surface 106 of base material 102.
Embodiment 2:
If Fig. 4, Fig. 5 (A, B, C, D) are an alternative embodiment of the invention.
As shown in Figure 4, in the present embodiment, brightness enhancement film 200 includes base material 202, prism structural layer 208, and described base material 202 has first optical surface 206 second optical surface 204 relative with the first optical surface with.Prism structural layer 208 is arranged on the first optical surface 206, this prism structural layer 208 is arranged by same direction 210A by multiple prism unit, prism unit is all pressed same direction 210B and is stretched, in layers of prisms 208, some prism structures 218 are provided with some discontinuous bulge-structures 220, described bulge-structure 220 stochastic distribution on prism direction of extension 310B.
Fig. 5 A for do not arrange in prism unit in the present embodiment 218 plane of part by vertical prism direction of extension 210B and through prism unit bulge-structure 220 summit of bulge-structure 220 the xsect that intercepts, prism unit 218 xsect is isosceles right triangle, corner angle A1 is 90 degree, and H1 is 30um.
Fig. 5 B for arrange in prism unit in the present embodiment 218 plane of part by vertical prism direction of extension 210B and through prism unit bulge-structure 220 summit of bulge-structure 220 the xsect that intercepts, the class isosceles triangle figure of this xsect to be drift angle be fillet, arc radius R is 5 μm.Summit, cross section is 33.4um to the vertical range H2 of section-bottom, and bulge-structure 220 xsect summit is 20.7um to bulge-structure 220 xsect distance from bottom h1, and bulge-structure 220 both sides angle angle A 2 is 74 °.
Fig. 5 C is the vertical view of brightness enhancement film 200 in the present embodiment, and described bulge-structure 220 is irregular on prism direction of extension 210B is in this embodiment distributed in prism unit 218.
Fig. 5 D is parallel to prism direction of extension 210B and perpendicular to the first optical surface 206, the plane that intercepts through prism unit bulge-structure 220 summit for brightness enhancement film in embodiment 200, the spacing L1 of bossing is between 61 μm ~ 5000 μm, and bossing length L2 is 60um.
Described base material 202 material is selected from polymethylmethacrylate, and described prism structural layer 208 material is selected from polyethylene kind UV-cured resin.The preparation method of described brightness enhancement film is: coating ultraviolet light curing resin bed on base material 202 first optical surface 206, by the mold wheel had with the microstructure complementary structure of prism structural layer 208, press mold is carried out to UV-cured resin, UV-cured resin layer can be made to form required microstructure, use UV-irradiation more subsequently, make the UV-cured resin layer solidification forming microstructure, thus prism structural layer 208 is arranged on the first optical surface 206 of base material 202.
Embodiment 3:
As shown in Fig. 6, Fig. 7 (A, B, C), be the 3rd embodiment of the present invention.
As shown in Figure 6, the brightness enhancement film 300 with anti-scratch function includes base material 302, prism structural layer 308.Base material 302 has first optical surface 306 second optical surface 304 relative with the first optical surface with, prism structural layer 308 is arranged on the first optical surface 306, this prism structural layer 308 inherence is along on prism direction of extension 310B, and each prism unit structure 318 is provided with discontinuous bulge-structure 320 with all having certain rule.
Fig. 7 A for part that bulge-structure 320 is not set in prism unit in the present embodiment 318 xsect that intercepts by the plane perpendicular to prism direction of extension 310B, this xsect is isosceles triangle, and corner angle A1 is 93 °, and height H 1 is 25um.
Fig. 7 B for part that bulge-structure 320 is set in prism unit in the present embodiment 318 xsect that intercepts by the plane perpendicular to prism direction of extension and through bulge-structure 320 summit, the class isosceles triangle figure of this xsect to be a drift angle be sinusoidal part, sinusoidal curve is by equation y=4*sin(0.4x) μm to determine, wherein x is between 0 ~ 2.5 π μm.Summit, cross section is 30um to the vertical range H2 of section-bottom, and bulge-structure 320 xsect summit is 15um to bulge-structure 320 xsect distance from bottom h1, and bulge-structure 320 both sides angle angle A 2 is 60 °.
Fig. 7 C for there is in the present embodiment scratch-resistant characteristic brightness enhancement film 300 be parallel to prism direction of extension 310B and perpendicular to the first optical surface 306, figure that plane through prism unit bulge-structure 320 summit intercepts, its be shown in adjacent protrusion structure 320 on prism unit direction of extension 310B spacing L1 be 60um, the length L2 of bossing is 40um.
Described base material 302 material is selected from polyethylene terephthalate, and described prism structural layer 308 material is selected from polyethylene kind UV-cured resin.The preparation method of described brightness enhancement film is: coating ultraviolet light curing resin bed on base material 302 first optical surface 306, by the mold wheel had with the microstructure complementary structure of prism structural layer 308, press mold is carried out to UV-cured resin, UV-cured resin layer can be made to form required microstructure, use UV-irradiation more subsequently, make the UV-cured resin layer solidification forming microstructure, thus prism structural layer 308 is arranged on the first optical surface 306 of base material 302.
Embodiment 4:
As shown in Fig. 8, Fig. 9 (A, B, C), give the 4th embodiment of the present invention.
Fig. 8 is the schematic diagram of the brightness enhancement film 400 in embodiment with anti-scratch function, and described brightness enhancement film 400 includes base material 402, prism structural layer 408.Wherein said base material 402 has first optical surface 406 second optical surface 404 relative with the first optical surface with; Prism structural layer 408 is arranged on the first optical surface 406, this prism structural layer 408 is arranged by same direction 410A by multiple prism unit 418, prism unit is all pressed same direction 410B and is stretched, the bulge-structure 420 that the ridge portion of some prism unit 418 has some stochastic distribution, differs in prism direction of extension length.
Fig. 9 A for part that bulge-structure 420 is not set in prism unit in embodiment 418 xsect that intercepts by the plane perpendicular to prism direction of extension 410B, this xsect is isosceles triangle, and corner angle A1 is 91 °, and height H 1 is 24.5um.
Fig. 9 B for part that bulge-structure 420 is set in prism unit 418 in embodiment 4 xsect that intercepts by the plane perpendicular to prism direction of extension and through bulge-structure 420 summit, the class isosceles triangle figure of this xsect to be a drift angle be sinusoidal part, sinusoidal curve is by equation y=5*sin(0.25x) μm to determine, wherein x is between 0 ~ 4 π μm.Summit, cross section is 30um to the vertical range H2 of section-bottom, and bulge-structure 420 xsect summit is 14um to bulge-structure 420 xsect distance from bottom h1, and bulge-structure 320 both sides angle angle A 2 is 68 °.
Fig. 9 C is for having scratch-resistant characteristic brightness enhancement film 400 and be parallel to prism direction of extension 410B and the plane that intercepts through prism unit projection structure summit of the plane of vertical first optical surface 406 in embodiment 4, the spacing L1 of bossing and length L2 is random, in prism structural layer 408, at least one group two adjacent bulge-structures 420 overlap.
Described base material 402 material is selected from polymethylmethacrylate, and described prism structural layer 408 material is selected from polyethylene kind UV-cured resin.The preparation method of described brightness enhancement film is: coating ultraviolet light curing resin bed on base material 402 first optical surface 406, by the mold wheel had with the microstructure complementary structure of prism structural layer 408, press mold is carried out to UV-cured resin, UV-cured resin layer can be made to form required microstructure, use UV-irradiation more subsequently, make the UV-cured resin layer solidification forming microstructure, thus prism structural layer 408 is arranged on the first optical surface 406 of base material 402.
Claims (8)
1. have a brightness enhancement film for anti-scratch function, comprise base material and prism structural layer, described prism structural layer is positioned on described base material, and described base material has the first relative optical surface and the second optical surface, and described prism structural layer is positioned on described base material, it is characterized in that:
Described prism structural layer is positioned on the first optical surface, and bottom surface is relative with the second optical surface; Described prism structural layer is made up of multiple prism unit structure arranged by same direction, and the ridge portion of described prism unit structure is provided with some bulge-structures;
Spacing L1 and the bulge-structure length L2 of bulge-structure are random, and in prism structural layer, at least one group two adjacent bulge-structures overlap;
The bulge-structure in prism unit structure ridge portion is randomly dispersed in the direction of extension of prism;
Described prism unit structure do not arrange bulge-structure place the xsect that cuts by the plane perpendicular to prism direction of extension be isosceles triangle;
Described bulge-structure the xsect that cuts by the plane perpendicular to prism direction of extension be the class isosceles triangle figure that two base angles are equal, drift angle is smooth convex outer curve, and two hypotenuse angle angle A 2 be less than prism structure the cross-sectional triangle corner angle A1 that cuts by same cross section;
Described bulge-structure by through bulge-structure summit and perpendicular to the first optical surface, be parallel to prism direction of extension plane the xsect that cuts be the X-Y scheme that smooth curve and straight line are formed, wherein the length L of straight line is between 2 μm ~ 106 μm.
2. a kind of brightness enhancement film with anti-scratch function according to claim 1, it is characterized in that: described prism unit structure do not arrange bulge-structure place the xsect isosceles triangle corner angle A1 that cuts by the plane perpendicular to prism direction of extension between 60 ° ~ 120 °, height H 1 is between 5 μm ~ 500 μm.
3. a kind of brightness enhancement film with anti-scratch function according to claim 2, is characterized in that: described bulge-structure summit to prism unit structure by through this bulge-structure summit and perpendicular to prism direction of extension plane the distance H2 on cross-sectional triangle base that cuts be greater than prism unit feature cross-section triangle height H1.
4. a kind of brightness enhancement film with anti-scratch function according to claim 1, is characterized in that: described bulge-structure summit to bulge-structure by through bulge-structure summit and perpendicular to prism direction of extension plane the distance h1 on xsect base that cuts be less than prism unit structure by the plane perpendicular to prism direction of extension the cross-sectional triangle height H 1 of cutting.
5. according to the arbitrary described a kind of brightness enhancement film with anti-scratch function of Claims 1-4, it is characterized in that: in the bulge-structure on same prism having at least two adjacent bulge-structures not overlap each other.
6. a kind of brightness enhancement film with anti-scratch function as claimed in claim 1, it is characterized in that: the material of described base material is macromolecule copolymer resin, the material of described prism structural layer is UV-cured resin.
7. a kind of brightness enhancement film with anti-scratch function according to claim 1 or 6, it is characterized in that: described substrate material is polyethylene terephthalate or polymethylmethacrylate, the material of described prism structure is epoxy acrylic resin or amino acrylic resin or polyvinyl resin or polyurethane acrylic resin or polyester acrylate resin.
8. comprise the arbitrary described liquid crystal display with the brightness enhancement film of anti-scratch function of claim 1 to 7.
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| CN201210501492.3A CN103018802B (en) | 2012-11-30 | 2012-11-30 | A kind of brightness enhancement film with anti-scratch function |
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| CN106199773B (en) * | 2016-06-21 | 2018-06-01 | 宁波激智科技股份有限公司 | A kind of optical film stack of high mechanical stability and preparation method thereof |
| CN114077091A (en) * | 2020-08-10 | 2022-02-22 | 瑞仪光电(南京)有限公司 | Backlight module and display device |
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| US7142767B2 (en) * | 2003-12-31 | 2006-11-28 | 3M Innovative Properties Company | Scratch-resistant light directing films |
| US7950838B2 (en) * | 2006-05-31 | 2011-05-31 | 3M Innovative Properties Company | Light directing film |
| CN101165512A (en) * | 2006-10-16 | 2008-04-23 | 开曼群岛商亚岗科技股份有限公司 | Optical film capable of overcoming optical defects |
| TW200912390A (en) * | 2007-09-03 | 2009-03-16 | Efun Technology Co Ltd | Optical film, mold for forming optical film and method of manufacturing mold |
| CN102236122B (en) * | 2010-04-30 | 2012-12-19 | 中强光电股份有限公司 | Optical film |
| CN102436021B (en) * | 2011-12-21 | 2014-10-22 | 北京康得新复合材料股份有限公司 | Prism-structure bright enhancement film with raised structures in non-uniform distribution |
| CN203164450U (en) * | 2012-11-30 | 2013-08-28 | 张家港康得新光电材料有限公司 | Brightness enhancement film with scratch resistant function and liquid crystal display |
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