CN102997183A - Friction-resistant type light diffusion film and backlighting device - Google Patents
Friction-resistant type light diffusion film and backlighting device Download PDFInfo
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- CN102997183A CN102997183A CN2012104301865A CN201210430186A CN102997183A CN 102997183 A CN102997183 A CN 102997183A CN 2012104301865 A CN2012104301865 A CN 2012104301865A CN 201210430186 A CN201210430186 A CN 201210430186A CN 102997183 A CN102997183 A CN 102997183A
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- 238000009792 diffusion process Methods 0.000 title claims abstract description 144
- 239000000463 material Substances 0.000 claims abstract description 48
- 238000000576 coating method Methods 0.000 claims description 90
- 239000011248 coating agent Substances 0.000 claims description 89
- 239000012530 fluid Substances 0.000 claims description 52
- 230000003287 optical effect Effects 0.000 claims description 49
- 239000002245 particle Substances 0.000 claims description 40
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- 239000004973 liquid crystal related substance Substances 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 40
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- 239000000470 constituent Substances 0.000 description 36
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- 239000004925 Acrylic resin Substances 0.000 description 31
- 229920000178 Acrylic resin Polymers 0.000 description 31
- 239000000203 mixture Substances 0.000 description 22
- 239000012752 auxiliary agent Substances 0.000 description 21
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 18
- 230000004888 barrier function Effects 0.000 description 18
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- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 18
- 239000003795 chemical substances by application Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 9
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- 150000002513 isocyanates Chemical class 0.000 description 6
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- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
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- Optical Elements Other Than Lenses (AREA)
Abstract
The invention relates to a friction-resistant type light diffusion film and a backlighting device. The light diffusion film comprises a base material, a light diffusion layer and a bonding-resistant layer, wherein the arithmetical mean deviation Ra of the profile and the microscopic roughness height Rz at ten o'clock of the surface of the light diffusion layer meet the following requirements: Ra is greater than or equal to 1mu and less than or equal to 5mu while Rz is greater than or equal to 5mu and less than or equal to 25mu; the arithmetical mean deviation Ra of the profile and the microscopic roughness height Rz at ten o'clock of the surface of the bonding-resistant layer meet the following requirements: Ra is greater than or equal to 0.2mu and less than or equal to 0.5mu while Rz is greater than or equal to 2mu and less than or equal to 7mu. The light diffusion film provided by the invention are prevented from being scratched even if the contact friction is caused among all layer surfaces of the light diffusion film, so that the light diffusion film has better friction-resistant performance, and the requirement of a high-precise refined LCD (Liquid Crystal Display) is satisfied. Due to the application of the light diffusion film, the backlighting device is difficult to scratch and cannot easily scratch other components, so that the LCD adopting the backlighting device has good image quality.
Description
Technical field
The present invention relates to a kind of optical diffusion film and back lighting device
Background technology
Existing optical diffusion film as using at the back lighting device of liquid crystal display etc. generally is comprised of light diffusion layer, base material and anti-stick layer.For the diffusion barrier in the back lighting device, not only require to have good covering effect, also require to have good brightening effect.For satisfying above requirement, a lot of diffusion barrier manufacturing firms all improve resin or the particulate of diffusion layer.In these improvement, because limited for the luminance raising of back lighting device, so present back lighting device generally all includes prismatic lens, both can solve the covering problem by being used in combination of prismatic lens and diffusion barrier like this and also can solve the blast problem.But, for back lighting device, at overlapping optical diffusion film, prismatic lens, when diffuser plate or LGP, between the light diffusion layer of optical diffusion film and the prismatic lens back side or the front, anti-stick layer and the LGP of optical diffusion film, the diffuser plate surface, produce mutually friction because contacting between prismatic lens front or the light diffusion layer, in addition, optical diffusion film stack use with make transportation in all can produce friction because contacting, this friction all can produce on the surface of diffusion barrier and scratch, in the liquid crystal display of in recent years high-precision refinement, its slight scratch will become the poor prognostic cause of liquid crystal display.
Summary of the invention
Technical problem to be solved by this invention is the weak point that exists for prior art, and a kind of rub resistance type optical diffusion film is provided.
Another technical problem that the present invention will solve provides a kind of back lighting device that uses above-mentioned diffusion barrier.
Solving the problems of the technologies described above the technical scheme that adopts is:
A kind of rub resistance type optical diffusion film, the coating fluid coating that the coating fluid coating that it comprises base material, contain light diffusion particle and resin anchors at light diffusion layer on arbitrary surface of described base material, contain anti-stick particle and resin anchors at the anti-stick layer on another surface of described base material, 10 height of the profile arithmetic average error Ra on described light diffusion layer surface and nao-and micro relief Rz satisfies following the requirement: 1um≤Ra≤5um, 5um≤Rz≤25um; 10 height of the profile arithmetic average error Ra on described anti-stick layer surface and nao-and micro relief Rz satisfies following the requirement: 0.2um≤Ra≤0.5um, 2um≤Rz≤7um.
Above-mentioned optical diffusion film, the coefficient of friction between described light diffusion layer and the anti-stick layer is between 0.2～0.35.
Above-mentioned optical diffusion film, the surperficial pencil hardness of described light diffusion layer is between HB～3H.
Above-mentioned optical diffusion film, the surperficial pencil hardness of described anti-stick layer is between HB～3H.
Above-mentioned optical diffusion film, the average grain diameter of described smooth diffusion particle are 5～20um.
Above-mentioned optical diffusion film, the average grain diameter of described anti-stick particle are 3～7um.
A kind of back lighting device, it comprises that for luminous light source, reflector plate, LGP and frame, optical diffusion and prismatic lens described optical diffusion is above-mentioned optical diffusion.
Compared with prior art, the present invention has the following advantages:
1. the present invention is by the profile arithmetic average error Ra on the surface of control light diffusion layer and anti-stick layer and coefficient of friction, the particulate average grain diameter between 10 height of nao-and micro relief Rz, case hardness, light diffusion layer and the anti-stick layer, make optical diffusion have better crocking resistance, overcome between the light diffusion layer and the prismatic lens back side or front of optical diffusion film, the anti-stick layer of optical diffusion film and LGP, diffuser plate surface, prismatic lens is positive or light diffusion layer between the scuffing that produces because of contact friction, satisfied the requirement of the liquid crystal display of high-precision refinement.
2. back lighting device of the present invention is difficult for producing scar because having used rub resistance type optical diffusion film of the present invention, and is difficult for scratching other assemblies, uses in the LCD display and can obtain good image quality.
The specific embodiment
The invention will be further described below in conjunction with embodiment.
Optical diffusion film sheet of the present invention is comprised of light diffusion layer, base material and anti-stick layer.
Light diffusion layer anchors at substrate surface by the coating fluid coating that contains light diffusion particle and resin and forms, wherein, resin can be selected one or more compositions in known crylic acid resin, polyurethanes, the propylene polyalcohols, and the light diffusion particle can be selected one or more compositions of known organosilicon, PS, PMMA or nylon.
Consider the rub resistance effect, the light diffusion particle among the present invention preferably uses round particle; For profile arithmetic average error Ra and 10 height of the nao-and micro relief Rz that makes the diffusion layer surface satisfies: 1um≤Ra≤5um, the requirement of 5um≤Rz≤25um, it is good that the average grain diameter of light diffusion particle is controlled at 5～20um, because when light diffusion particle particle diameter too hour, the surface of diffusion layer is peaceful sliding, and layer surface easily is scratched; When light diffusion particle particle diameter was too large, the diffusion layer surface was too coarse, easily scratched other assemblies.
The anti-stick layer anchors at another surface of base material by the coating fluid coating that contains anti-stick particle and resin and forms, wherein, resin can be selected one or more compositions in known crylic acid resin, polyurethanes, the propylene polyalcohols, and anti-bonding particle can be selected one or more compositions of known organosilicon, PS, PMMA or nylon.For profile arithmetic average error Ra and 10 height of the nao-and micro relief Rz that makes anti-stick layer surface satisfies: 0.2um≤Ra≤0.5um, the requirement of 2um≤Rz≤7um, it is good that the average grain diameter of anti-stick particle is controlled at 3～7um.
The resin that uses in light diffusion layer and the anti-stick layer, the hardness of coating after needing to consider to be coated with, coating hardness is too small easily to be scratched other assemblies in the excessive easy scuffing backlight of coating hardness by other assemblies in the backlight.Consider prism, LGP, diffuser plate in the present backlight, and product is in links such as processing, assembling, transportation, vibration tests, the surperficial pencil hardness of the light diffusion layer among the present invention and anti-stick layer is controlled between HB～3H proper.
For light diffusion layer and anti-stick layer, except using above-mentioned particle and resin, can also add according to demand the auxiliary agents such as light trigger, photopolymerization promoter, levelling agent, defoamer, curing agent, slipping agent, antistatic additive, antioxidant, UV absorbers.Above-mentioned auxiliary agent be added with the coefficient of friction that helps improve coating surface.
Being fit to base material of the present invention, can to select thickness be a kind of among PET, PC between the 25um to 250um and the PS.
Optical diffusion film of the present invention, by above-mentioned resin, particle, auxiliary agent and suitable solvent are deployed into coating fluid, be coated with the surface that method, scraper for coating method, spraying process, intaglio plate rubbing method, nick version rubbing method etc. are coated base material by rod, be solidified to form through super-dry etc.
Back lighting device of the present invention is comprised of at least a slice optical diffusion film sheet of the present invention, LGP (or diffuser plate), reflector plate, light source etc., generally comprises prismatic lens for the brightness that promotes backlight simultaneously.Back lighting device of the present invention is difficult for producing scar because having used rub resistance type optical diffusion film sheet of the present invention, and is difficult for scratching other assemblies, uses in the LCD display and can obtain good image quality.
Below the present invention will be described in more detail by implementing.
Embodiment 1
According to material proportion in table 1 and the table 2, obtain respectively light diffusion layer coating fluid and anti-stick layer coating fluid by stirring respectively.
Above coating fluid is coated in respectively the two sides of the PET base material of 188um, and is heating and curing, forming respectively thickness is the light diffusion coating of 26um and the anti-stick coating that thickness is 5um, obtains rub resistance type optical diffusion film, and test result is shown in Table 19.
The smooth diffusion coating coating fluid of table 1 forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | Acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Isocyanate curing agent | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 17.1 | Average grain diameter: 20um, the coefficient of dispersion 30% |
| 4 | Butanone | 31.0 | ? |
| 5 | Butyl acetate | 31.0 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Table 2 anti-stick layer coating fluid forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | Acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Isocyanate curing agent | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 3.8 | Average grain diameter: 6um, the coefficient of dispersion 30% |
| 4 | Butanone | 42.2 | ? |
| 5 | Butyl acetate | 33.1 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Embodiment 2
According to material proportion in table 3 and the table 4, obtain respectively light diffusion layer coating fluid and anti-stick layer coating fluid by stirring respectively.
Above coating fluid is coated in respectively the two sides of the PET base material of 188um, and is heating and curing, forming respectively thickness is the light diffusion coating of 20um and the anti-stick coating that thickness is 5um, obtains rub resistance type optical diffusion film, and test result is shown in Table 19.
The smooth diffusion coating coating fluid of table 3 forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | Acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Isocyanate curing agent | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 17.1 | Average grain diameter: 13um, the coefficient of dispersion 30% |
| 4 | Butanone | 31.0 | ? |
| 5 | Butyl acetate | 31.0 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Table 4 anti-stick layer coating fluid forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | Acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Isocyanate curing agent | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 3.8 | Average grain diameter: 4um, the coefficient of dispersion 30% |
| 4 | Butanone | 42.2 | ? |
| 5 | Butyl acetate | 33.1 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Embodiment 3
According to material proportion in table 5 and the table 6, obtain respectively light diffusion layer coating fluid and anti-stick layer coating fluid by stirring respectively.
Above coating fluid is coated in respectively the two sides of the PET base material of 188um, and is heating and curing, forming respectively thickness is the light diffusion coating of 8um and the anti-stick coating that thickness is 4um, obtains rub resistance type optical diffusion film, and test result is shown in Table 19.
The smooth diffusion coating coating fluid of table 5 forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | Acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Isocyanate curing agent | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 17.1 | Average grain diameter: 5um, the coefficient of dispersion 30% |
| 4 | Butanone | 31.0 | ? |
| 5 | Butyl acetate | 31.0 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Table 6 anti-stick layer coating fluid forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | Acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Isocyanate curing agent | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 3.8 | Average grain diameter: 3um, the coefficient of dispersion 30% |
| 4 | Butanone | 42.2 | ? |
| 5 | Butyl acetate | 33.1 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Embodiment 4
According to material proportion in table 7 and the table 8, obtain respectively light diffusion layer coating fluid and anti-stick layer coating fluid by stirring respectively.
Above coating fluid is coated in respectively the two sides of the PET base material of 188um, and is heating and curing, forming respectively thickness is the light diffusion coating of 20um and the anti-stick coating that thickness is 5um, obtains rub resistance type optical diffusion film, and test result is shown in Table 19.
The smooth diffusion coating coating fluid of table 7 forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | The UV acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Light trigger | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 17.1 | Average grain diameter: 13um,, the coefficient of dispersion 30% |
| 4 | Butanone | 31.0 | ? |
| 5 | Butyl acetate | 31.0 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Table 8 anti-stick layer coating fluid forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | The UV acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Light trigger | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 3.8 | Average grain diameter: 4um, the coefficient of dispersion 30% |
| 4 | Butanone | 42.2 | ? |
| 5 | Butyl acetate | 33.1 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Embodiment 5
According to material proportion in table 9 and the table 10, obtain respectively light diffusion layer coating fluid and anti-stick layer coating fluid by stirring respectively.
Above coating fluid is coated in respectively the two sides of the PET base material of 188um, and is heating and curing, forming respectively thickness is the light diffusion coating of 20um and the anti-stick coating that thickness is 5um, obtains rub resistance type optical diffusion film, and test result is shown in Table 19.
The smooth diffusion coating coating fluid of table 9 forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | The UV urethane acrylate | 17.1 | Solid constituent: 50% |
| 2 | Light trigger | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 17.1 | Average grain diameter: 9um, the coefficient of dispersion 30% |
| 4 | Butanone | 31.0 | ? |
| 5 | Butyl acetate | 31.0 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Table 10 anti-stick layer coating fluid forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | The UV urethane acrylate | 17.1 | Solid constituent: 50% |
| 2 | Light trigger | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 3.8 | Average grain diameter: 3.5um, the coefficient of dispersion 30% |
| 4 | Butanone | 42.2 | ? |
| 5 | Butyl acetate | 33.1 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Embodiment 6
According to material proportion in table 11 and the table 12, obtain respectively light diffusion layer coating fluid and anti-stick layer coating fluid by stirring respectively.
Above coating fluid is coated in respectively the two sides of the PET base material of 188um, and is heating and curing, forming respectively thickness is the light diffusion coating of 20um and the anti-stick coating that thickness is 5um, obtains rub resistance type optical diffusion film, and test result is shown in Table 19.
The smooth diffusion coating coating fluid of table 11 forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | The UV acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Light trigger | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 17.1 | Average grain diameter: 13um, the coefficient of dispersion 30% |
| 4 | Butanone | 31.0 | ? |
| 5 | Butyl acetate | 31.0 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Table 12 anti-stick layer coating fluid forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | The UV acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Light trigger | 3.4 | Solid constituent: 60% |
| 3 | The nylon particle | 3.8 | Average grain diameter: 4um, the coefficient of dispersion 30% |
| 4 | Butanone | 42.2 | ? |
| 5 | Butyl acetate | 33.1 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Embodiment 7
According to material proportion in table 13 and the table 14, obtain respectively light diffusion layer coating fluid and anti-stick layer coating fluid by stirring respectively.
Above coating fluid is coated in respectively the two sides of the PET base material of 188um, and is heating and curing, forming respectively thickness is the light diffusion coating of 20um and the anti-stick coating that thickness is 5um, obtains rub resistance type optical diffusion film, and test result is shown in Table 19.
The smooth diffusion coating coating fluid of table 13 forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | The UV acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Light trigger | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 17.1 | Average grain diameter: 11um, the coefficient of dispersion 30% |
| 4 | Butanone | 31.0 | ? |
| 5 | Butyl acetate | 31.0 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Table 14 anti-stick layer coating fluid forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | The UV acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Light trigger | 3.4 | Solid constituent: 60% |
| 3 | The silicone resin particle | 3.8 | Average grain diameter: 5um, the coefficient of dispersion 30% |
| 4 | Butanone | 42.2 | ? |
| 5 | Butyl acetate | 33.1 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Embodiment 8
Present embodiment is to use the above-mentioned optical diffusion membrane of one deck to be applied to the example of liquid crystal display.Its mechanism comprises transparent light guide plate, optical diffusion membrane, prismatic lens and the display panels in fluorescent tube, high efficiency reflector plate, the backlight.Light source can be at least a in cold-cathode fluorescence lamp, external electrode fluorescent lamp, light emitting diode and the hot-cathode fluorescent lamp.
Comparative example 1
According to material proportion in table 15 and the table 16, obtain respectively light diffusion layer coating fluid and anti-stick layer coating fluid by stirring respectively.
Above coating fluid is coated in respectively the two sides of the PET base material of 188um, and is heating and curing, forming respectively thickness is the light diffusion coating of 30um and the anti-stick coating that thickness is 15um, obtains optical diffusion film, and test result is shown in Table 19.
The smooth diffusion coating coating fluid of table 15 forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | The UV acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Light trigger | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 17.1 | Average grain diameter: 25um, the coefficient of dispersion 30% |
| 4 | Butanone | 31.0 | ? |
| 5 | Butyl acetate | 31.0 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Table 16 anti-stick layer coating fluid forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | The UV acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Light trigger | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 3.8 | Average grain diameter: 12um, the coefficient of dispersion 30% |
| 4 | Butanone | 42.2 | ? |
| 5 | Butyl acetate | 33.1 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Comparative example 2
According to material proportion in table 17 and the table 18, obtain respectively light diffusion layer coating fluid and anti-stick layer coating fluid by stirring respectively.
Above coating fluid is coated in respectively the two sides of the PET base material of 188um, and is heating and curing, forming respectively thickness is the light diffusion coating of 25um and the anti-stick coating that thickness is 4um, obtains optical diffusion film, and test result is shown in Table 19.
The smooth diffusion coating coating fluid of table 17 forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | The UV acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Light trigger | 3.4 | Solid constituent: 60% |
| 3 | The acrylic resin particle | 17.1 | Average grain diameter: 3um, the coefficient of dispersion 30% |
| 4 | Butanone | 31.0 | ? |
| 5 | Butyl acetate | 31.0 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
Table 18 anti-stick layer coating fluid forms table
| Sequence number | Material | Percentage composition % | Remarks |
| 1 | The UV acrylic resin | 17.1 | Solid constituent: 50% |
| 2 | Light trigger | 3.4 | Solid constituent: 60% |
| 3 | The silicone resin particle | 3.8 | Average grain diameter: 2um, the coefficient of dispersion 30% |
| 4 | Butanone | 42.2 | ? |
| 5 | Butyl acetate | 33.1 | ? |
| 6 | Auxiliary agent | 0.4 | ? |
The optical diffusion film wearability is estimated:
1. the test of 10 height of profile arithmetic average error Ra and nao-and micro relief Rz:
Secundum legem ISO4287-1997 measures.
2. diffusion layer and anti-stick layer frictional property detect:
Each prepares 100 embodiment 1 to 7 and comparative example 1,2 optical diffusion film sheet, is of a size of 750mm * 440mm, and 100 diffusion barriers alignment are superimposed as one group, respectively places up and down a slice diffusion barrier and does screening glass, uses the PE bag packaging, lies against in the carton.With carton be placed on average speed per hour be on 80 kilometers the truck from first be transported to second ground, specimen is taken out carries out the suface friction inspection.
3. diffusion barrier sheet vibration-testing:
Each prepares 6 embodiment 1 to 7 and comparative example 1,2 optical diffusion film, be of a size of 750mm * 440mm, 6 diffusion barriers are divided into 3 groups, press LGP, 2 diffusion barrier sheets for every group, the structure assembling of prismatic lens, carry out vibration-testing, investigate diffusion barrier sheet friction condition between each layer in backlight.
4. friction testing:
Each prepares 6 embodiment 1 to 7 and comparative example 1,2 optical diffusion film sheet, be of a size of 100mm * 100mm, 6 diffusion barrier sheets are divided into 2 groups, 3 of every groups, one group of friction effect of under abrasion resistant tester, testing between diffusion barrier light diffusion layer and the prismatic lens back side, the wearability of checking diffusion barrier light diffusion layer and the prismatic lens back side; One group of friction effect of testing under abrasion resistant tester between diffusion barrier anti-stick layer and the LGP is checked the wearability of diffusion barrier anti-stick layer and the wearability of LGP exiting surface.
Wearability detects and is mainly the rear apparent inspection of product of test, and the result of visual examination is divided into: excellence, participate in the element of test without any problem, and be designated as ◎; Qualified, the element that participates in test has slight scratch, scratch, but does not affect use, is designated as zero; Defective, the element that participates in test has serious scratch, scratch, and impact is used, be designated as *.
The test result of each embodiment of table 19
In table 19, can find out, the surface roughness test data of embodiment 1, embodiment 2, embodiment 3 reduces successively, and case hardness all is 1H, wherein the result of embodiment 2 in diffusion layer and the detection of anti-stick layer frictional property is better than embodiment 1 and embodiment 2, reason is that embodiment 1 positive surface roughness is bigger than normal, easy scratch and the positive diffusion barrier back side that contacts, embodiment 3 positive coarseness data are less than normal, adsorb easily dust also easily by the scratch of the product back side.And embodiment 1, embodiment 2, embodiment 3 is because the case hardness of three products is 1H, so performance is unexcellent in vibration-testing and wear-resisting test.
The case hardness that embodiment 4 and embodiment 5 investigate product is promoted to 2H and 3H by 1H, in the frictional property test of diffusion layer and anti-stick layer, performance is excellent, embodiment 4 shows also excellent in vibration-testing simultaneously, but embodiment 5 is because case hardness is excessive, scratch easily other elements in vibration and friction testing, performance only is qualified.
Embodiment 4 compares with embodiment 6, because embodiment 6 skin-friction coefficients are little than embodiment 4, the surface is relatively smooth, and performance is good than embodiment 4 in friction testing.
Embodiment 6 compares with embodiment 7, and the skin-friction coefficient of embodiment 7 is lower, and in the vibration-testing process, relative motion aggravation between diffusion barrier and other elements is so that performance is qualified in vibration-testing.
The main situation of investigating the large roughness product test of comparative example 1, the product surface roughness is too large, in diffusion layer and the test of anti-stick layer frictional property, vibration-testing and friction testing, easily scratch, abrades other assemblies, tests all defective.
The comparative example 2 main test case of investigating little roughness product, the product surface roughness is too little, in diffusion layer and the test of anti-stick layer frictional property, vibration-testing and friction testing, easily by other assembly scratches, scratch, tests all defective.
Claims (7)
1. rub resistance type optical diffusion film, it is characterized in that, the coating fluid coating that the coating fluid coating that comprise base material, contains light diffusion particle and resin anchors at light diffusion layer on arbitrary surface of described base material, contain anti-stick particle and resin anchors at the anti-stick layer on another surface of described base material, 10 height of the profile arithmetic average error Ra on described light diffusion layer surface and nao-and micro relief Rz satisfies following the requirement: 1um≤Ra≤5um, 5um≤Rz≤25um; 10 height of the profile arithmetic average error Ra on described anti-stick layer surface and nao-and micro relief Rz satisfies following the requirement: 0.2um≤Ra≤0.5um, 2um≤Rz≤7um.
2. described rub resistance type optical diffusion film according to claim 1 is characterized in that the coefficient of friction between described light diffusion layer and the anti-stick layer is between 0.2～0.35.
3. described rub resistance type optical diffusion film according to claim 2 is characterized in that the surperficial pencil hardness of described light diffusion layer is between HB～3H.
4. described rub resistance type optical diffusion film according to claim 3 is characterized in that the surperficial pencil hardness of described anti-stick layer is between HB～3H.
5. described rub resistance type optical diffusion film according to claim 4 is characterized in that the average grain diameter of described smooth diffusion particle is 5～20um.
6. described rub resistance type optical diffusion film according to claim 5 is characterized in that the average grain diameter of described anti-stick particle is 3～6um.
7. back lighting device, it comprises for luminous light source, reflector plate, LGP and frame, optical diffusion and prismatic lens, it is characterized in that, described optical diffusion adopts the described optical diffusion of claim 1 ~ 6.
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| CN201210430186.5A CN102997183B (en) | 2012-11-01 | 2012-11-01 | Friction-resistant type light diffusion film and backlighting device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412356A (en) * | 2013-08-30 | 2013-11-27 | 浙江元泰特种膜有限公司 | Optical diffusion film and preparation method of optical diffusion film |
| CN106597584A (en) * | 2016-12-15 | 2017-04-26 | 张家港康得新光电材料有限公司 | Anti-absorption diffusion barrier |
| CN108957605A (en) * | 2018-06-19 | 2018-12-07 | 嘉兴市汇华光学科技有限公司 | A kind of diffusion film production process |
| CN109683221A (en) * | 2019-01-16 | 2019-04-26 | 苏州世沃电子科技有限公司 | A kind of novel optical diaphragm group and preparation method for preventing glutinous piece |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000089007A (en) * | 1998-09-17 | 2000-03-31 | Keiwa Inc | Light diffusing sheet and back light unit using the same |
| CN101059618A (en) * | 2006-04-18 | 2007-10-24 | 惠和株式会社 | Liquid crystal display module |
| CN101310213A (en) * | 2005-11-15 | 2008-11-19 | 旭化成化学株式会社 | Light diffusion plate for liquid crystal display |
| CN101961940A (en) * | 2009-06-04 | 2011-02-02 | 株式会社Jiro企业策划 | Optical sheet for direct type liquid crystal display device and backlight unit |
| CN102221719A (en) * | 2010-04-19 | 2011-10-19 | 住友化学株式会社 | Resin sheet and liquid crystal display device |
-
2012
- 2012-11-01 CN CN201210430186.5A patent/CN102997183B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000089007A (en) * | 1998-09-17 | 2000-03-31 | Keiwa Inc | Light diffusing sheet and back light unit using the same |
| CN101310213A (en) * | 2005-11-15 | 2008-11-19 | 旭化成化学株式会社 | Light diffusion plate for liquid crystal display |
| CN101059618A (en) * | 2006-04-18 | 2007-10-24 | 惠和株式会社 | Liquid crystal display module |
| CN101961940A (en) * | 2009-06-04 | 2011-02-02 | 株式会社Jiro企业策划 | Optical sheet for direct type liquid crystal display device and backlight unit |
| CN102221719A (en) * | 2010-04-19 | 2011-10-19 | 住友化学株式会社 | Resin sheet and liquid crystal display device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412356A (en) * | 2013-08-30 | 2013-11-27 | 浙江元泰特种膜有限公司 | Optical diffusion film and preparation method of optical diffusion film |
| CN106597584A (en) * | 2016-12-15 | 2017-04-26 | 张家港康得新光电材料有限公司 | Anti-absorption diffusion barrier |
| CN108957605A (en) * | 2018-06-19 | 2018-12-07 | 嘉兴市汇华光学科技有限公司 | A kind of diffusion film production process |
| CN109683221A (en) * | 2019-01-16 | 2019-04-26 | 苏州世沃电子科技有限公司 | A kind of novel optical diaphragm group and preparation method for preventing glutinous piece |
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|---|---|
| CN102997183B (en) | 2014-07-16 |
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Effective date of registration: 20240412 Address after: 230041 Lekai Industrial Park, zone a, Xinzhan Industrial Park, Xinzhan District, Hefei City, Anhui Province Patentee after: HEFEI LUCKY SCIENCE & TECHNOLOGY INDUSTRY Co.,Ltd. Country or region after: China Patentee after: LUCKY HEALTHCARE CO.,LTD. Patentee after: Tianjin Lekai Film Technology Co.,Ltd. Address before: 230041 Lekai Industrial Park, zone a, Xinzhan Industrial Park, Xinzhan District, Hefei City, Anhui Province Patentee before: HEFEI LUCKY SCIENCE & TECHNOLOGY INDUSTRY Co.,Ltd. Country or region before: China Patentee before: LUCKY HEALTHCARE CO.,LTD. Patentee before: Tianjin Lucky Film Co.,Ltd. |