CN100356247C - Optical thin sheet - Google Patents
Optical thin sheet Download PDFInfo
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- CN100356247C CN100356247C CNB2005101243660A CN200510124366A CN100356247C CN 100356247 C CN100356247 C CN 100356247C CN B2005101243660 A CNB2005101243660 A CN B2005101243660A CN 200510124366 A CN200510124366 A CN 200510124366A CN 100356247 C CN100356247 C CN 100356247C
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Abstract
The present invention relates to an optical flake which comprises a substrate, at least one side of which comprises a light diffusion layer. The optical flake of the present invention has the optical characteristic of no less than 98 percent haze, and is particularly suitable for panel displays.
Description
Technical field
The present invention relates to be assembled in the used otpical leaf of back light member of liquid crystal indicator, have the optical characteristics of high diffusibility, make light see through the generation diffusion, homogenising ground distributes, and reaches the good optical effect.
Background technology
Liquid crystal panel itself is not luminous, and therefore the backlight as the brightness source is the critical elements of LCD Presentation Function, and extremely important for improving liquid crystal display brightness.
In addition, the LCD product is by past notebook computer or the LCD screen LCD TV that expands, and the material particular of being considered is that enough video picture brightness must be able to be arranged, broad watch visual angle, distinct picture contrast and standardized serviceable life.For reaching the demand, " direct-light-type backlight module " (DirectType Backlight) just becomes the technology main flow of present collocation large LCD TV.Fig. 1 is the synoptic diagram of conventional direct type backlight module.As shown in Figure 1, described direct type backlight module comprises from down to up in regular turn: reflectance coating (11), cold cathode fluorescent lamp (12), diffuser plate (13), diffusion barrier (14) and concentration piece (15).
The direct-light-type backlight module product possesses high brightness usually, but the fluorescent tube number becomes many situations that present the light and shade striped that but cause easily to be produced, to light all once having certain influence degree, so must add a diffuser plate (Diffuser) in the backlight module design.Diffuser plate generally is by the polycarbonate (Polycarbonate that contains organic or inorganic fine particles, PC) resin or polymethylmethacrylate (Polymethyl methacrylate, PMMA) resin is formed, thickness is about 2mm, major function is utilized particulate exactly, light is passed in the different medium of two refractive indexes, produce refraction and scattering phenomenon, the line source that light source is penetrated is scattered in uniform surface light source, promptly allow the light of below light source see through diffuser plate generation diffusion, upwards evenly disperse the back to penetrate in the front.
Liquid crystal flat panel display generally requires compact, but diffuser plate thickness is thick, Heavy Weight and material itself can cause inevitable optical absorption, has the light of part to be wasted and causes light source effectively to utilize.In addition, the processing procedure of diffuser plate is more time-consuming, and required production cost is also higher relatively, causes the big shortcoming of one on the modular design.
For improving above-mentioned shortcoming, this case the inventor find through broad research, and the otpical leaf of the high diffusion property of tool can allow light uniformization, reach the effect of homogeneous, can replace the employed diffuser plate of former backlight module, and volume is thin, in light weight, processing procedure is easy, yield is high, can effectively solve the aforesaid drawbacks.
Summary of the invention
Fundamental purpose of the present invention has according to JIS K7136 standard method and records the otpical leaf that is not less than 98% mist degree for providing a kind of.
Description of drawings
Fig. 1 is the synoptic diagram of conventional direct type backlight module;
Fig. 2 is the synoptic diagram of otpical leaf of the present invention;
Fig. 3 is the synoptic diagram of composite optical thin slice of the present invention;
Fig. 4 is the synoptic diagram of another composite optical thin slice of the present invention; With
Fig. 5 shows ultraviolet light-visible light penetration rate spectrum of embodiment 2-3.
Embodiment
At least one side that otpical leaf of the present invention comprises a base material and described base material comprises a light diffusion layer, and described otpical leaf has according to JIS K7136 standard method and records and be not less than 98% mist degree.
The employed base material of otpical leaf of the present invention can be any the technical field of the invention and has and know that usually the knowledgeable is known, for example glass or plastics.Above-mentioned plastic basis material there is no particular restriction, for example is polyacrylate resin, polycarbonate resin, polystyrene resin, polyolefin resin, poly-cyclic olefin resins, cellulose acetate resin, polyimide resin or vibrin.Be preferably vibrin, as polyethylene terephthalate or poly-naphthalenedicarboxylic acid ethyl ester.The thickness of base material depends on the demand of the optical articles of being wanted usually, and is too thin, easily takes place during coating to curl, and opposite, too thick, the brightness meeting reduces, and it preferably arrives between about 250 μ m between about 16 μ m (micron).
For reaching the high diffusion effect of light, so at least one side of base material comprises a light diffusion layer, in other words, all forms concaveconvex structure on incidence surface, exiting surface or the two sides of base material, as light diffusion layer.According to ASTM D523 standard method, when light source throwed with 60 ° of incident angles, the measured glossiness of described light diffusion layer was lower than 10%.The formation method of above-mentioned concaveconvex structure there is no particular restriction, and by one of ordinary skill in the art are known, it is such as but not limited to serigraphy, spraying or embossing processing.Preferred mode is the resinous coat that applies the tool concaveconvex structure at substrate surface.
Above-mentioned resinous coat comprises particle and cement.For reaching higher diffusion effect, the diameter of described particle preferably arrives about 20 μ m between about 1 μ m.Particle is preferably the about 600 weight % of about 100-with respect to the amount of cement, is preferably the about 500 weight % of about 150-.Be lower than 100 weight % as fruit granule with respect to the amount of cement, diffusion effect is not good; If but were higher than 600 weight %, particle would be difficult to be fixed in the cement of substrate surface, can produce the misgivings that come off.
Can be used in the particle type among the present invention, there is no particular restriction, it can be organic filler, inorganic particulate or both potpourris.The coating of particles of using does not have particular restriction yet, for example sphere, rhombus etc.
Can be used for the organic filler among the present invention, is to be selected from the group that is made of acryl resin, styrene resin, amido formate resin, silicone (silicone) resin and its potpourri.
Can be used for the inorganic particulate among the present invention, is to be selected from the group that is made of zinc paste, titania, zirconia, aluminium oxide, zinc sulphide, barium sulphate and its potpourri.
According to a specific embodiment of the present invention, above-mentioned particle is preferably the organic filler between about 10 μ m between about 1 μ m, and preferred organic filler is the silicone resin particle.
According to an advantageous embodiment of the invention, at least one side that otpical leaf of the present invention comprises a plastic basis material and described plastic basis material is coated with the resinous coat with concaveconvex structure, described resinous coat comprises organic filler, and the wherein said otpical leaf mist degree that standard method records according to JIS K7136 is not less than 98%.
Above-mentioned cement there is no particular restriction, it for example is selected from acryl resin, polyamide, epoxy resin, fluoroplast, polyimide resin, polyurethane resin, alkyd resin (alkydresin), group that vibrin and its potpourri constituted, is preferably acryl resin, polyurethane resin, vibrin or its potpourri.Be used in the cement among the present invention, owing to must allow light see through, it is preferably water white.
For avoiding the plastic basis material yellow, can in coating, add inorganics with the ultraviolet ability of absorption, such as but not limited to zinc paste, massicot, zirconia, aluminium oxide, silicon dioxide, titania, calcium sulphate, barium sulphate, lime carbonate or its potpourri, be preferably titania, zirconia, aluminium oxide, zinc paste or its potpourri.The particle diameter of above-mentioned inorganics be generally about 1 to about 100 nanometers (nanometer nm), is preferably about 20nm and arrives about 50nm.
The employed coating with concaveconvex structure of otpical leaf of the present invention also can optionally comprise the known adjuvant of one of ordinary skill in the art, and it is such as but not limited to leveling agent, stabilization agent, rigidizer, fluorescer or ultraviolet light absorber.
Can be used for rigidizer of the present invention (Curing Agent) is that one of ordinary skill in the art are known, it can produce molecule and intermolecular chemical bond with cement and form interlinkage (Crosslinking), and it is such as but not limited to polyisocyanate (Polyisocyanate).
Can be used for fluorescer of the present invention, there is no particular restriction, be that one of ordinary skill in the art are known, it can be organism, such as but not limited to the two triazines (diphenylethylenebistriazines) of benzoxazoles class (benzoxazoles), benzimidazole (benzimidazoles) or talan; Or inorganics, such as but not limited to zinc sulphide.
Can be used for ultraviolet light absorber of the present invention, be that one of ordinary skill in the art are known, it for example is benzotriazole (benzotriazoles), phentriazine class (benzotriazines), Benzophenone class (benzophenones) or salicyclic acid derivatives (salicylic acid derivatives) etc.
According to an advantageous embodiment of the invention, at least one side that otpical leaf of the present invention comprises a vibrin base material and described base material is coated with the resinous coat with concaveconvex structure, described resinous coat comprises organic filler, cement and inorganics, wherein said organic filler has about 1 μ m and is the about 600 weight % of about 100-to the diameter of about 10 μ m and with respect to the amount of described cement, be preferably the about 500 weight % of about 150-, standard method records and is not less than 99% the mist degree of wherein said otpical leaf according to JIS K7136.Above-mentioned inorganics is preferably titania, zirconia, aluminium oxide, zinc paste or its potpourri, and described otpical leaf preferably has according to JIS K7136 standard method and records and be not less than 60% total light transmittance.
The employed resinous coat of otpical leaf of the present invention, its thickness depends on the demand of desired optical articles usually, general about 1 μ m preferably arrives about 20 μ m between about 1 μ m between about 50 μ m.
The optical characteristics of optical articles can be by haze value (Hz), total light transmittance (Tt), diffusion light transmitance (Td) and the equivalent direct representation of directional light transmitance (Tp), Tt=Td+Tp wherein, Hz=Td/Tt (%).Generally speaking, total light transmittance is represented the penetrance of optical articles, and haze value is represented the diffusivity of optical articles.Otpical leaf of the present invention has the optical characteristics of high penetration and high light diffusing.According to JIS K7136 standard method, the total light transmittance of otpical leaf of the present invention is not less than 60%, be preferably to be higher than 80%, and mist degree is not less than 98%, is preferably to be higher than 99%.
Otpical leaf of the present invention has characteristics such as high temperature resistant, antisticking, antistatic and high atomization, can be used in the backlight module of display as the diffusion thin slice.Because have high diffusion property, thus when light by the diffusion thin slice, light evenly can be spread, to eliminate the light and shade phenomenon, reach all once effects of light.
For effectively reduce the module production cost and reduce other diaphragms in the module (as, concentration piece and diffusion barrier etc.) use, the present invention also provides a kind of composite optical thin slice of function that can integrated other diaphragms, its opposite side that comprises otpical leaf of the present invention and described base material can optionally have Any shape and function, for example: plane or cloudy surface, optically focused or astigmatism.For example, can have the light collecting layer of optically focused effect, make it, increase the directivity of emergent light, reach the purpose that improves front face brightness with light diffusion and optically focused effect in the opposite side coating one of base material.Above-mentioned light collecting layer preferably has microstructure form, and its microstructure form is preferably the prism decorative pattern such as but not limited to rule or irregular prism decorative pattern, ring-type prism decorative pattern, solid angle decorative pattern, pearl decorative pattern or lensing decorative pattern.Perhaps, can have the diffusion layer of diffusion in the opposite side coating one of base material to change the anaclasis angle and to improve brightness.Above-mentioned diffusion layer can comprise the different scattering particle of one or more granularity, and described scattering particle has the diameter of about 1 μ m to about 50 μ m.The shape of scattering particle there is no particular restriction, and it is such as but not limited to spherical, rhombus.The scattering particle that uses can be organic filler, inorganic particulate or both potpourris, and wherein the example of organic filler and inorganic particulate as described earlier in this article.
According to an advantageous embodiment of the invention, otpical leaf of the present invention as shown in Figure 2, wherein a side of base material (1) comprises a light diffusion layer (2), and described diffusion layer comprises particle (3) and inorganics (4).
Fig. 3 and Fig. 4 then are respectively the synoptic diagram of composite optical thin slice of the present invention.As shown in Figure 3 and Figure 4, except that otpical leaf of the present invention, described composite optical thin slice comprises diffusion layer (5) or the light collecting layer (7) that contains scattering particle (6) in addition.
Following examples are used for that the invention will be further described, just are not in order to limit the scope of the invention.Modification that any one of ordinary skill in the art can realize easily and change are included in the scope of this case instructions disclosure and aforementioned claim.
Embodiment 1-1
With 21.0 gram acryl resin [Eterac 7363-ts-50, Eternal company] (solid part about 50%), add in the plastic bottle, respectively 15.0 grams, mean grain size are silicone resin pearl powder 24 gram [the Tospearl 120E of 2 μ m to add MEK and toluene again under high-speed stirred in regular turn, GE Toshiba silicones company], just add rigidizer [Desmodur 3390, Bayer company] 2.0 grams (solid part about 75%) at last, infusion becomes solid part about 46%, the about 77.0 gram coating of gross weight.# 12 is coated on PET[T680E100 with coating with the RDS paint daubs, Mitsubishi company] on the base material incidence surface, through 120 ℃ of dryings can about 7 μ m after 1 minute film, do transparent material brightness test, test gained result as shown in the following Table 1.
Embodiment 1-2
With 21.0 gram acryl resin [Eterac 7363-ts-50, Eternal company] (solid part about 50%), add in the plastic bottle, respectively 18.0 grams, mean grain size are silicone resin pearl powder 36 gram [the Tospearl 120E of 2 μ m to add MEK and toluene again under high-speed stirred in regular turn, GE Toshiba silicones company], just add rigidizer [Desmodur 3390, Bayer company] 2.0 grams (solid part about 75%) at last, infusion becomes solid part about 49%, the about 95.0 gram coating of gross weight.# 12 is coated on PET[T680E100 with coating with the RDS paint daubs, Mitsubishi company] on the base material incidence surface, through 120 ℃ of dryings can about 7 μ m after 1 minute film, do transparent material brightness test, test gained result as shown in the following Table 1.
Embodiment 1-3
With RDS paint daubs # 12 the coating of embodiment 1-1 is coated on PET[T680E100 respectively, Mitsubishi company] on the base material both side surface, each always can get after 1 minute and the filming of about 14 μ m through 120 ℃ of dryings, does transparent material brightness test, and test gained result as shown in the following Table 1.
Comparative example 1-1
With 21.0 gram acryl resin [Eterac 7363-ts-50, Eternal company] (solid part about 50%), add in the plastic bottle, under high-speed stirred, add each 6.0 gram of MEK and toluene, 1-100nm titania solution totally 48 grams (solid part about 50%) more in regular turn, [Desmodur 3390 just to add rigidizer at last, Bayer company] 2.0 grams (solid part about 75%), infusion becomes solid part about 42%, the about 111.0 gram coating of gross weight.# 12 is coated on PET[T680E100 with coating with the RDS paint daubs, Mitsubishi company] on the base material, through 120 ℃ of dryings can about 7 μ m after 1 minute film, do transparent material brightness test, test gained result as shown in the following Table 1.
Method of testing:
The test of transparent material brightness: utilize NDH 5000W haze meter (Japanese electric look company),, record mist degree (Hz) and total light transmittance (Tt) according to JIS K7136 standard method.
Table 1
| Hz(％) | Tt(％) | |
| Embodiment 1-1 | 98.20 | 91.72 |
| Embodiment 1-2 | 99.55 | 75.05 |
| Embodiment 1-3 | 99.15 | 83.86 |
| Comparative example 1-1 | 9.41 | 84.17 |
Embodiment 2-1
With filming of embodiment 1-1, leave standstill after 7 days and do weather resistance test.Test gained result as shown in the following Table 2.
Embodiment 2-2
With filming of embodiment 1-2, leave standstill after 7 days and do weather resistance test.Test gained result as shown in the following Table 2.
Embodiment 2-3
With 21.0 gram acryl resin [Eterac 7363-ts-50, Eternal company] (solid part about 50%), add in the plastic bottle, under high-speed stirred, add each 38.0 gram of MEK and toluene more in regular turn, mean grain size is silicone resin pearl powder 24 gram [the Tospearl 120E of 2 μ m, GE Toshiba silicones company], 1-100nm titania, burnett's solution is totally 48 grams (solid part about 50%), [Desmodur 3390 just to add rigidizer at last, Bayer company] 2.0 grams (solid part about 75%), infusion becomes solid part about 35%, the about 171.0 gram coating of gross weight.# 12 is coated on PET[T680E100 with coating with the RDS paint daubs, Mitsubishi company] on the base material, through 120 ℃ of dryings can about 7 μ m after 1 minute film, leave standstill after 7 days and do weather resistance test, test gained result as shown in the following Table 2, and survey its ultraviolet light-visible light penetration rate spectrum, as shown in Figure 5.
Embodiment 2-4
With 21.0 gram acryl resin [Eterac 7363-ts-50, Eternal company] (solid part about 50%), add in the plastic bottle, under high-speed stirred, add each 18.0 gram of MEK and toluene more in regular turn, mean grain size is silicone resin pearl powder 36 gram [the Tospearl 120E of 2 μ m, GE Toshiba silicones company], 1-100nm titania, aluminium oxide, zirconia solution is totally 48 grams (solid part about 50%), [Desmodur 3390 just to add rigidizer at last, Bayer company] 2.0 grams (solid part about 75%), infusion becomes solid part about 49%, the about 143.0 gram coating of gross weight.# 12 is coated on PET[T680E100 with coating with the RDS paint daubs, Mitsubishi company] on the base material, through 120 ℃ of dryings can about 7 μ m after 1 minute film, leave standstill after 7 days and do weather resistance test.Test gained result as shown in the following Table 2.
Method of testing:
Weather resistance test: utilize QUV weather resistance test machine (Q-panel company) irradiation,, survey its yellow index (Yellowingindex, YI) Zhi variation with beam split color difference meter ColorQuest XE (HUNTERLAB company) along with different exposure time.The main wavelength of weather-proof test is 313nm.
The test of ultraviolet light-visible light light-splitting penetrance: utilize Lamda 650S ultraviolet light-visible light light-splitting spectrometer (Perkin Elmer company), do detector with the 60mm integrating sphere, the test wavelength is 300nm-800nm, records ultraviolet light-visible light penetration rate spectrum.
Table 2
| Exposure 100hr Δ YI | Exposure 200hr Δ YI | Exposure 300hr Δ YI | |
| Embodiment 2-1 | 4.96 | 8.76 | 11.26 |
| Embodiment 2-2 | 5.63 | 10.25 | 14.63 |
| Embodiment 2-3 | 0.6 | 0.8 | 0.9 |
| Embodiment 2-4 | 0.8 | 1.1 | 1.2 |
Preparation coating A: with 21.0 gram acryl resin [Eterac 7363-ts-50, Eternal company] (solid part about 50%), add in the plastic bottle, under high-speed stirred, add each 38.0 gram of MEK and toluene more in regular turn, mean grain size is silicone resin pearl powder 24 gram [the Tospearl 120E of 2 μ m, GE Toshibasilicones company], 1-100nm titania, zirconia, aluminium oxide, burnett's solution is totally 48 grams (solid part about 50%), [Desmodur 3390 just to add rigidizer at last, Bayer company] 2.0 grams (solid part about 75%), infusion becomes solid part about 35%, the about 171.0 gram coating of gross weight.
Embodiment 3-1
#20 is coated on PET[T680E100 with coating A with the RDS paint daubs, Mitsubishi company] on the PET base material, through 120 ℃ of dryings can about 14 μ m after 1 minute film, do transparent material brightness test, test gained result as shown in the following Table 3.
Embodiment 3-2
#18 is coated on PET[T680E100 with coating A with the RDS paint daubs, Mitsubishi company] on the PET base material, through 120 ℃ of dryings can about 12 μ m after 1 minute film, do transparent material brightness test, test gained result as shown in the following Table 3.
Embodiment 3-3
#16 is coated on PET[T680E100 with coating A with the RDS paint daubs, Mitsubishi company] on the PET base material, through 120 ℃ of dryings can about 10 μ m after 1 minute film, do transparent material brightness test, test gained result as shown in the following Table 3.
Embodiment 3-4
#14 is coated on PET[T680E100 with coating A with the RDS paint daubs, Mitsubishi company] on the PET base material, through 120 ℃ of dryings can about 8 μ m after 1 minute film, do transparent material brightness test, test gained result as shown in the following Table 3.
Comparative example 3-1
Diffuser plate commercially available product (PC-8311, Teijin Chemicals company) thickness is about 2mm, does transparent material brightness test, test gained result as shown in the following Table 3.
Comparative example 3-2
Diffuser plate commercially available product (PC-8391, Teijin Chemicals company) thickness is about 2mm, does transparent material brightness test, test gained result as shown in the following Table 3.
Comparative example 3-3
Diffuser plate commercially available product (703, ChiMei company) thickness is about 2mm, does transparent material brightness test, test gained result as shown in the following Table 3.
Comparative example 3-4
Diffuser plate commercially available product (DSX70, Asahi Kasei Chemicals company) thickness is about 2mm, does transparent material brightness test, test gained result as shown in the following Table 3.
Table 3
| Hz(％) | Tt(％) | |
| Embodiment 3-1 | 99.74 | 64.94 |
| Embodiment 3-2 | 99.67 | 68.58 |
| Embodiment 3-3 | 99.54 | 80.90 |
| Embodiment 3-4 | 99.18 | 81.25 |
| Comparative example 3-1 | 99.67 | 63.79 |
| Comparative example 3-2 | 99.64 | 64.17 |
| Comparative example 3-3 | 99.51 | 70.88 |
| Comparative example 3-4 | 99.13 | 74.70 |
By the result of embodiment 1-1 and embodiment 1-2 as can be known, in substrate surface coating resin coating,, make the effect of light diffusion better because organic filler increases, thereby can improve mist degree.
By the result of embodiment 1-1 and embodiment 1-3 as can be known, when substrate surface both sides all during the coating resin coating, because organic filler increases and coating thickness increases, thereby can effectively cover the high light light source, the light diffusion effect is better.
The comparative result of embodiment 1-1 and comparative example 1-1 do not have the coating of concaveconvex structure owing to lack organic filler, thereby mist degree is low as can be known, does not have the effect of light diffusion.
The result of comparing embodiment 2-1 and embodiment 2-3 and embodiment 2-2 and embodiment 2-4 as can be known, when the resinous coat of coating substrate surface contains the inorganics with ultraviolet absorption ability, have preferred anti-yellow effect, therefore can provide base material ultraviolet light character.And learn that by Fig. 5 the following ultraviolet light penetrance of wavelength 380nm is lower than 5%, the visible light penetrance of wavelength 400nm-780nm is greater than 90%, thereby has the effect that absorbs ultraviolet light.
Comparing embodiment 3-1 and comparative example 3-1 to the result of 3-4 as can be known, otpical leaf of the present invention has higher mist degree than commercially available diffuser plate, so otpical leaf of the present invention has high diffusion property, can allow light uniformization, reaches the homogeneous effect.
The result of comparing embodiment 3-1 and comparative example 3-1, embodiment 3-2 and comparative example 3-2, embodiment 3-3 and comparative example 3-3 and embodiment 3-4 and comparative example 3-4, as can be known when the mist degree of otpical leaf of the present invention is identical with commercially available diffuser plate or higher, otpical leaf provided by the present invention all has higher total light transmittance, therefore can provide higher brightness.
The result of comparing embodiment 3-1 and comparative example 3-1, embodiment 3-2 and comparative example 3-2, embodiment 3-3 and comparative example 3-3 and embodiment 3-4 and comparative example 3-4, the mist degree of otpical leaf of the present invention is all higher than commercially available diffuser plate as can be known, thickness but only is about 1/10th of commercially available diffuser plate, can significantly reduce module thickness and weight, thereby have more industry applications.
Otpical leaf of the present invention has high diffuse optical characteristic, can allow light uniformization, and volume is thin, in light weight, thereby can replace the employed diffuser plate of former backlight module.
Claims (18)
1. otpical leaf, its at least one side that comprises a plastic basis material and described plastic basis material be coated with have concaveconvex structure resinous coat as light diffusion layer, described resinous coat comprises organic filler and cement, it is 100～600 weight % to the diameter of 20 μ m and with respect to the amount of described cement that wherein said organic filler has 1 μ m, and described otpical leaf has according to JIS K7136 standard method and records and be not less than 98% mist degree.
2. otpical leaf according to claim 1, wherein said plastic basis material are to be selected from the group that is made of polyacrylate resin, polycarbonate resin, polystyrene resin, poly-cyclic olefin resins, polyolefin resin, poly-cellulose acetate resin, polyimide resin and vibrin.
3. otpical leaf according to claim 1, wherein said organic filler are to be selected from the group that is made of acryl resin, styrene resin, amido formate resin, silicone resin and composition thereof.
4. otpical leaf according to claim 1, wherein said coating further contains organic/inorganic substance.
5. otpical leaf according to claim 4, wherein said inorganics are to be selected from the group that is made of zinc paste, massicot, zirconia, aluminium oxide, silicon dioxide, titania, calcium sulphate, barium sulphate, lime carbonate and composition thereof.
6. otpical leaf, its at least one side that comprises a vibrin base material and described base material is coated with the resinous coat with concaveconvex structure, described resinous coat comprises organic filler, cement and inorganics, it is 100-600 weight % to the diameter of 10 μ m and with respect to the amount of described cement that wherein said organic filler has 1 μ m, and described otpical leaf has according to JIS K7136 standard method and records and be not less than 99% mist degree.
7. otpical leaf according to claim 6, wherein said vibrin are polyethylene terephthalate or poly-naphthalenedicarboxylic acid ethyl ester.
8. otpical leaf according to claim 6, wherein said inorganics are titania, zirconia, aluminium oxide, zinc paste or its potpourri.
9. otpical leaf according to claim 6, wherein said organic filler are silicone resin.
10. otpical leaf according to claim 6, wherein said cement is to be selected from the group that is made of acryl resin, polyamide, epoxy resin, fluoroplast, polyimide resin, polyurethane resin, alkyd resin, vibrin and its potpourri.
11. otpical leaf according to claim 6, wherein said organic filler is 150-500 weight % with respect to the amount of described cement.
12. otpical leaf according to claim 6, wherein said resinous coat have the thickness of 1 μ m to 50 μ m.
13. otpical leaf according to claim 12, wherein said resinous coat have the thickness of 1 μ m to 20 μ m.
14. a composite optical thin slice, it comprises according to the described otpical leaf of arbitrary claim in the claim 1 to 13, and the opposite side of wherein said base material further comprises at least one light collecting layer with optically focused effect.
15. composite optical thin slice according to claim 14, wherein said light collecting layer has microstructure form.
16. composite optical thin slice according to claim 15, wherein said microstructure form are to be selected from the group that is made of rule or irregular prism decorative pattern, ring-type prism decorative pattern, solid angle decorative pattern, pearl decorative pattern and lensing decorative pattern.
17. a composite optical thin slice, it comprises according to the described otpical leaf of arbitrary claim in the claim 1 to 13, and the opposite side of wherein said base material further comprises at least one diffusion layer with diffusion.
18. composite optical thin slice according to claim 17, wherein said diffusion layer comprise the different scattering particle of one or more granularity, and scattering particle has the diameter of 1 μ m to 50 μ m.
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| EP2237081A4 (en) * | 2008-01-10 | 2014-07-16 | Kolon Inc | Optical sheets |
| TWI408405B (en) | 2009-10-27 | 2013-09-11 | Eternal Chemical Co Ltd | Optical film composite |
| JP2011098445A (en) * | 2009-11-04 | 2011-05-19 | Tomoegawa Paper Co Ltd | Optical laminate and method for manufacturing the same, and polarizing plate and display device using the same |
| EP2579070B1 (en) * | 2010-06-02 | 2020-02-12 | Kimoto Co., Ltd. | Scattering film for organic el light-emitting device and organic el light-emitting device comprising the film |
| TWI435120B (en) | 2010-07-09 | 2014-04-21 | Eternal Chemical Co Ltd | Composite optical film |
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