CN101595404A - Optical composite and manufacture method thereof - Google Patents
Optical composite and manufacture method thereof Download PDFInfo
- Publication number
- CN101595404A CN101595404A CNA2008800013964A CN200880001396A CN101595404A CN 101595404 A CN101595404 A CN 101595404A CN A2008800013964 A CNA2008800013964 A CN A2008800013964A CN 200880001396 A CN200880001396 A CN 200880001396A CN 101595404 A CN101595404 A CN 101595404A
- Authority
- CN
- China
- Prior art keywords
- optical composite
- structural sheet
- adhering part
- light
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
- H01R24/62—Sliding engagements with one side only, e.g. modular jack coupling devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0256—Details of interchangeable modules or receptacles therefor, e.g. cartridge mechanisms
- H05K5/026—Details of interchangeable modules or receptacles therefor, e.g. cartridge mechanisms having standardized interfaces
- H05K5/0278—Details of interchangeable modules or receptacles therefor, e.g. cartridge mechanisms having standardized interfaces of USB type
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Elements Other Than Lenses (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention discloses a kind of optical composite that is used for backlight liquid crystal display module or lighting device, and it can improve luminosity fully and the adhering part in it is arranged regularly, to bring out optics illusion effect, makes scratch and dirty can't clearly being seen.The present invention also provides the manufacture method of this kind optical composite.Owing to do not need additionally to use blooming or prismatic lens, therefore can save into this locality and produce optical devices as backlight module.
Description
Technical field
The present invention relates to the optical composite and the manufacture method thereof that are used for LCD in a kind of.
Background technology
Because industrial society is towards advanced information age development now, therefore, be used to show that the importance with the electronic console of the media of the various information of transmission also grows with each passing day.In the past, bulky cathode-ray tube (CRT) (Cathode Ray Tube is hereinafter to be referred as CRT) was widely used, but to install the viewpoint of CRT requisite space, but faced considerable restriction, so that be difficult to make the CRT with large-size.Therefore, CRT is replaced by various forms of flat-panel screens gradually, comprises LCD (LCD), electric slurry display panel (PDP), Field Emission Display (FED) and display of organic electroluminescence.In these flat-panel screens, LCD particularly is for a kind of technology-intensive property product that produces in conjunction with liquid crystal-semiconductor technology, because it is frivolous and power consumption is low, so take advantage.Therefore, its structure and The Study of Manufacturing Technology and development are constant.Now, be applied to using the LCD in monitor and Portable personal communication apparatus fields such as (PDA(Personal Digital Assistant) and mobile phones) such as mobile computer, desktop PC, be manufactured into bigger size, also thereby LCD can be applied to large-sized TV, high image quality (High Definition) TV for example.Therefore, LCD is as a kind of novel display that can replace in the past just as the CRT as the display synonym, and gets most of the attention.
In LCD,,, cause and in each pixel (pixel), pass the light intensity Be Controlled of liquid crystal and then reach contrast (contrast) effect so additionally provide light source in its rear surface because liquid crystal itself can't be launched light.More specifically, LCD is as a kind of device of electrically adjusting penetrability that uses liquid crystal material, system launches light from being installed in surperficial thereafter illuminator, and the light of being launched in this way penetrates various functional prism films or sheet, cause light to become evenly and have directivity, afterwards, the controlled light of this kind also penetrates chromatic filter, thereby realizes red, green and blue (R, G, B) color.More and, LCD is an indirect light emission form, sees through electrical method, by each pixel of control to recently realizing image.Therefore, aspect the quality of judging the LCD image, comprise luminosity and homogeneity, be equipped with the light emitting devices of light source to be considered to crucial.
This kind light emitting devices mainly is as example with backlight module.Usually, backlight module is to utilize such as cathode fluorescent tube (Cold Cathode Fluorescent Lamp, CCFL) transmitting illuminant, and the light that is launched passes light guide plate in order, or pass the light pervasion component that comprises light diffusing sheet or light diffusing sheet, and prismatic lens, and then arrive liquid crystal panel.The light that light guide plate or diffuser plate go out from light emitted in order to transmission, make it intersperse among the whole flat front surface of liquid crystal panel, and such as the light pervasion component of light diffusing sheet or light diffusing sheet, then carry out shielding function, when making uniform light intensity be implemented in the front surface of whole screen, the device that is installed in light pervasion component below, for example light source can not seen in the surface in the past.Prismatic lens makes and passes the light of advancing with various directions behind the light pervasion component in order to the control light path, is converted into according to the observer to be suitable for watching in the scope of view angle θ of image.In addition, reflector plate is provided in the below of light guide plate or diffuser plate, in order to reflection no show liquid crystal panel and the light beyond light path, light is utilized once more, and then increases the service efficiency of light source.
Recently, in order further to simplify processing procedure, attempted reducing the use of blooming.This kind trial comprises prismatic lens attached on the light diffusing sheet, and forms example such as prism patterns on light diffusing sheet.In these examples, even if cost cost is enhanced with yield-power, yet luminosity is not as the increase as the expectation.
Usually, for when penetrating prismatic lens, will be through the anaclasis of light pervasion component diffusion to the front surface direction, an air layer preferably can be present between light pervasion component and the prismatic lens.When prismatic lens directly is disposed on the light pervasion component, promptly form air layer, even if the air layer that forms is thin in the extreme.Yet in the process of assembling backlight module, when using adhesive agent to stick light pervasion component and prismatic lens, or prism patterns is formed at light diffusing sheet when promoting its workability, is not formed with air layer, thereby makes the luminosity reduction.
In addition, in the process of assembling backlight module, scratch may appear, though and the light source crested, light source still must transmit light, thereby has a little restriction to be added to cover on the characteristic.More and, in the process of lamination tablet, can not remove the dirty possibility that causes by the interference of light up hill and dale.Stick process if use as above-mentioned adhesive agent, then may be owing to adhesive agent forms dirty.
Summary of the invention
Therefore, the invention provides a kind of optical composite, it sees through and sticks together, and integrates light pervasion component and optical sheet, and comprises air layer, to promote work efficiency and to avoid reducing luminosity.
In addition, the invention provides a kind of optical composite, the adhering part system between its light pervasion component and the optical sheet arranges regularly, to bring out optics illusion effect, causes scratch and dirty can't clearly being seen.
In addition, the invention provides a kind of optical composite, can spread the light of launching from light source equably, to represent the excellent characteristic of covering.
And, the invention provides a kind of method of making optical composite, it can stably form air layer, to increase luminosity fully and to get rid of extra the use in order to promote the blooming or the prismatic lens of luminosity.
In addition, the invention provides a kind of method of making optical composite, even if having adhering part, luminosity still can not reduce.
The invention provides a kind of optical composite, it comprises a structural sheet, and it has a light transmitting surface and a plurality of spatial structure with equal height; One is formed at structural sheet one lip-deep adhering part; And one be formed at adhering part one lip-deep light collecting layer.
In optical composite, air duct can be formed between the spatial structure of structural sheet.
In optical composite, the light transmitting surface of structural sheet can not be smooth.
Optical composite can further comprise one of them or two what follows: the bottom with respect to this light transmitting surface is gone up on a surface that is formed at structural sheet; And be formed at top layer on the light transmitting surface of structural sheet.
In optical composite, one of them of top layer and bottom or two can be contained the light diffusion particle.
In optical composite, (parts by weight, formation top layer PBW) and one of them of bottom or two s' resin is a benchmark, can contain 0.01 to 30PBW light diffusion particle with 100 weight deals.
In optical composite, adhering part can have and is equal to or greater than 90% total transmittancy.
In optical composite, adhering part can have 1.40 to 1.60 refractive index.
In optical composite, adhering part can have per 25 millimeter 100 to 1000 the gram (100～1000g/25mm) adhesions.
In optical composite, adhering part can be formed by UV cured dose or thermoinitiators, and can have 100 to 15000cps viscosity after sclerosis.
In optical composite, adhering part can be formed by the solid adhesive agent.
In optical composite, adhering part can have the thickness that is equal to or less than 10 μ m.
In optical composite, the spatial structure of structural sheet can be the structure that having of a kind of linearity or non-linear arrangement is selected from polygonal taper, taper shape, semisphere and aspheric shape.
In optical composite, structural sheet can have fixing distance between the peak dot of two spatial structures adjacent one another are.
In optical composite, can have the spacing (pitch) that is equal to or less than 300 μ m between the spatial structure.
In optical composite, the spacing of spatial structure, can be its height at least four times.
In optical composite, adhering part can have 1/10th to 1/5th width of the spacing of spatial structure.
In optical composite, when structural sheet can be by the figure roller of base resin by being in contact with it, co-extrusion pressure (co-extruding) base resin and forming.
In optical composite, base resin can be selected from potpourri, polycarbonate resin, polystyrene resin and methyl methacrylate (methylmethacrylate) resin with the polycarbonate of part by weight 1 to 9 to 9 to 1 mixing (polycarbonate) resin and polystyrene (polystyrene) resin.
In optical composite, be benchmark with the base resin of 100PBW, can further contain 10 to 500PBW light diffusion particle.
In optical composite, the light diffusion particle can be one or more and is selected from the following group that constitutes: acrylic acid (acrylic) particle comprises methyl methacrylate (methylmethacrylate), acrylic acid (acrylic acid), methacrylic acid (methacrylic acid), hydroxyethyl methylacrylate (hydroxyethylmethacrylate), hydroxy propyl methacrylate (hydroxypropyl methacrylate), acrylamide (acrylamide), n-methylolacrylamide (methylol acryl amide), glytidyl methacrylate (glycidylmethacrylate), ethyl acrylate (ethyl acrylate), isobutyl acrylate (isobutyl acrylate), n-butyl acrylate (n-butyl acrylate), and the homopolymer (monopolymer) of 2-EHA (2-ethylhexyl acrylate) or multipolymer (copolymer); Alkene (olefin) particle comprises tygon (polyethylene), polystyrene and polypropylene (polypropylene); Propylene-alkene (acryl-olefin) copolymer particle; Multilayer (multilayer) multicomponent (multicomponent) particle is by forming earlier homopolymer (homopolymer) particle, with the monomer (monomer) of other type its covering is got afterwards again; Siloxy group (siloxane-based) polymer particle; Tetrafluoroethene (tetrafluoroethylene) particle; Monox (silicon oxide); Aluminium oxide (aluminumoxide); Titanium dioxide (titanium oxide); Zirconia (zirconium oxide) and magnesium fluoride (magnesium fluoride).
In addition, the invention provides a kind of method of making optical composite, comprise preparation one and have light transmitting surface and a plurality of structural sheet with spatial structure of equal height; On the flat surfaces of a light collecting layer, form an adhering part; And adhering part attached to structural sheet.
In addition, the invention provides a kind of method of making optical composite, comprise preparation one and have light transmitting surface and a plurality of structural sheet with spatial structure of equal height; Use self-structure layer place keeps the overlay film roller of equal equal altitudes, adhesive agent is coated on the peak of the spatial structure of structural sheet; The adhesive agent of hard-coating is to form an adhering part; And lamination one light collecting layer.
In the said method, the light transmitting surface of structural sheet can not be smooth.
In the said method, the step of preparation structural sheet, in the time of can comprising the figure roller of base resin by being in contact with it, the co-extrusion pressure base resin.
In the said method, adhering part can have per 25 millimeter 100 to 1000 the gram (100～1000g/25mm) adhesions.
In the said method, adhering part can be formed by UV cured dose or thermoinitiators, and can have 100 to 15000cps viscosity after sclerosis.
In the said method, adhering part can be formed by the solid adhesive agent.
In the said method, adhering part can have 1/10th to 1/5th width of the spatial structure spacing of structural sheet.
In the said method, adhering part can have the thickness that is equal to or less than 10 μ m.
According to the present invention, a kind of optical composite can be provided, its light pervasion component and optical sheet see through and to stick together and integrate mutually, use the enhancement work efficiency, and it comprises air layer, to avoid reducing luminosity.
In addition, can provide a kind of optical composite, the adhering part between its light pervasion component and the optical sheet is arranged regularly, to bring out optics illusion effect, causes scratch or dirty can't clearly being seen.
In addition, also can provide a kind of and can spread the light of launching from light source equably, cover the optical composite of characteristic to represent excellence.
And, can provide because the stable air layer that forms, thereby have the optical composite and the manufacture method thereof of abundant increase luminosity, therefore do not need extra blooming or the prismatic lens that uses in order to increase luminosity, thereby reduce manufacturing cost, simplify processing procedure and realize thin display.
And according to the present invention, in the method for making optical composite, even if having adhering part, luminosity does not still lower, and induces optics illusion effect, makes scratch or dirty can't clearly being seen.
Description of drawings
Fig. 1 is for showing the longitudinal sectional drawing according to optical composite of the present invention;
Fig. 2 to Figure 12 is for showing the longitudinal sectional drawing according to the various enforcement aspects after the optical composite modification of the present invention; And
Figure 13 is for showing the synoptic diagram of the process on the foundation optical composite of the present invention that adhering part is formed at.
Embodiment
Cooperate following graphic, with the present invention detailed give be illustrated in after.
Fig. 1 is the longitudinal sectional drawing according to optical composite of the present invention, and Fig. 2 to Figure 12 is the longitudinal sectional drawing of the various enforcement aspects after modifying according to optical composite of the present invention.For simplicity, during all were graphic, identical assembly was all represented with identical label, but this does not represent that the formation of each assembly is identical all mutually with shape.
According to the present invention, optical composite comprises a structural sheet 100, an adhering part 120 and a light collecting layer 130 that forms in regular turn.
Generally speaking, light diffusing sheet is the mode manufacturing that forms surfaceness with the light diffusion particle by making, to increase luminosity.Yet according to the viewpoint of compatibility of the base resin that is used for light diffusing sheet, the size of particle can limit to some extent.When light collecting layer is formed on the light diffusing sheet, although use big as far as possible light diffusion particle, air duct 151 does not form yet.
Among the present invention, comprise structural sheet 100, stably form air duct 151 according to this with spatial structure 111.Therefore, after the light that is fully spread in the structural sheet 100 at optical composite passes the air channel 151 of being formed, being had relatively low density by air, when being transferred to light collecting layer 130 with relative higher density, by light circulation and anaclasis corresponding to light collecting layer 130 inherent functions, light can finally increase luminosity effectively towards the front surface transmission.
Not only be formed with the structural sheet 100 in order to diffusion light, the light collecting layer 130 with in order to gathered light also is formed with air duct 151, therefore can promote luminosity effectively.Diffusion barrier that need provide individually and prismatic lens traditionally, its function is endowed in a single optical composite, therefore, can reduce the quantity that is installed in the film in the backlight module, and its luminosity is identical or higher with the luminosity of the example that light diffusing sheet and prismatic lens are provided individually.
The height of spatial structure 111 forms air can be circulated in air duct 151 to principle.
Particularly, the spatial structure 111 of structural sheet 100 is preferably at its peak dot place has identical height, and remaining unchanged apart from a between the peak dot of two spatial structures adjacent one another are.As shown in Figure 9, if the fixed distance between the peak dot of two spatial structures, all spacings can equal length form, or the spacing between two figures adjacent one another are can form unequal.That is, even if the spacing I between two figures adjacent one another are is different with II, spatial structure is still arranged regularly with the figure that repeats, and makes fixed distance between the peak dot of two spatial structures.In the time can seeing the prismatic lens that is formed on the smooth pervasion component of the present invention from the front surface place, utilize under the situation that adhesive agent sticks together at light pervasion component and prismatic lens, will see dirty as white point on the surface sticking together.Fixed distance when between the peak dot of two spatial structures, the adhering part that is formed at peak place is arranged regularly, cause as the dirty systematicness fully ground of white point to be seen, thus cause a kind of can't know see dirty optics illusion.On the contrary, when figure is irregularly formed, this kind is dirty can more clearly be seen.
As previously mentioned, fix the white point that is produced when attempting to be formed on the lamination prismatic lens regularly between the peak dot of two spatial structures apart from a.Under the condition that distance is fixed between the peak dot of two spatial structures 111, in the spacing of the spatial structure 111 of structural sheet 100, even if adjacent two spatial structures 111 or three or more spatial structure 111 have different length, obviously it still belongs to technology category of the present invention as can be known.
In the structural sheet 100, the spacing of spatial structure 111 can be at least four times of its peak dot height b, and its spacing can be equal to or less than 300 μ m.This is owing to this optical composite that is positioned on light source or the light guide plate, is playing the part of the role who supports other tablet laminated thereon, therefore, should realize lower height as much as possible, thereby realizes the surface of stability.
Among the present invention, structural sheet 100 is not defined in Any shape especially, as long as can satisfy above-mentioned condition, and it can be the structure that having of a kind of linear array or non-linear arrangement is selected from polygonal taper, taper shape, semisphere and aspheric Any shape.
More and, structural sheet 100 sees through light transmitting surface 112 diffusion lights, and can have various aspects to increase the diffuser efficiency of light.That is, as shown in Figure 1, light transmitting surface 112 can be smooth person, and to shown in Figure 9, light transmitting surface 112 can be various aspects as Fig. 2.The processing procedure that forms this kind spatial structure 111 does not have specific limited, comprises laser cutting, co-extrusion pressure, lift-over (rolltransfer), hot pressing, screen painting and lithography.
For example, structural sheet 100 can be prepared through co-extrusion pressure.That is, during the figure roller of the base resin of fusion by being in contact with it, formed structural sheet by co-extrusion pressure.Extrusion temperature becomes along with the type of base resin, generally is set at 200 ℃ to 300 ℃.In this example, each structural sheet (100) can use one type resin to prepare simply.The example of base resin comprises with the polycarbonate resin of part by weight 1 to 9 to 9 to 1 mixing and potpourri, polycarbonate resin, polystyrene resin, methyl methacrylate or styrene-propene acid (styrene-acryl) copolymer resin of polystyrene resin.
Except aforesaid processing procedure, but but structural sheet 100 can contain the fluoropolymer resin of ultraviolet ray hardening resin or heat hardening resin by coating, coat on the surface of basement membrane form.
This basement membrane comprises polyethylene terephthalate (polyethylene terephthalate) film, polycarbonate membrane, polypropylene screen, polyethylene film, polystyrene film or poly-epoxy (polyepoxy) film.Particularly useful person is polyethylene terephthalate film or polycarbonate membrane.
But but contain the fluoropolymer resin of ultraviolet ray hardening resin or heat hardening resin, comprise very transparently, and can form in order to keep the resin combination of the required crosslink bond of optical texture shape.The example of fluoropolymer resin comprises epoxy resin-lewis acid or poly-hydroxyethyl (polyethylol), unsaturated polyester (UP)-styrene (polyester-styrene), acrylic or methacrylic acid esters.Particularly useful person is the acrylic or methacrylic acid ester resin, and it is very transparent person.This kind resin is to be example with oligomer (oligomer), such as Polyurethane acrylate (polyurethane acrylate) or methacrylate, epoxy acrylate or methacrylate and polyester acrylate or methacrylate, and, can use separately or use with acrylate with multiple functional radical or monofunctional or mixed with methacrylate monomers.
The thickness setting of basement membrane is applicable to physical strength, thermal stability and pliability for making it, and basement membrane thickness is preferably 10 to 1000 μ m, and avoiding the transmitted light loss, and the thickness of basement membrane is more preferred from 15 to 400 μ m.
In basement membrane, the light diffusion particle can form of single sheet or multilayer form scatters, and particle size is 1 to 100 μ m, and is benchmark with the base resin of 100PBW, contains 10 to 500PBW amount.When having the light diffusion particle of aforementioned particles size, when avoiding generation of gonorrhoea degree and separate particles, can realize suitable photodiffusion effect with aforesaid amount use.
The light diffusion particle comprises a plurality of organic or inorganic particles.The prominent example of organic filler comprises acrylic particles, and it comprises the homopolymer or the multipolymer of methyl methacrylate, acrylic acid, methacrylic acid, hydroxyethyl methylacrylate, hydroxy propyl methacrylate, acrylamide, n-methylolacrylamide, glytidyl methacrylate, ethyl acrylate, isobutyl acrylate, n-butyl acrylate and 2-EHA; The alkene particle, it comprises tygon, polystyrene and polypropylene; Propylene-olefin copolymer particle; Multilayer multicomponent particle by forming earlier the homopolymer particle, gets its covering with the monomer of other type afterwards again; The silica alkyl polymer particle; And tetrafluoroethene particle.The example of inorganic particulate then comprises monox; Aluminium oxide; Titanium dioxide; Zirconia and magnesium fluoride.Aforementioned organic and inorganic particulate only in order to illustrate, is not limited to aforementioned listed example, the fundamental purpose of every attainable cost invention, and for the person of ordinary skill in the field can not have other known materials that difference is learnt, all can be replaced.And the type of material of being replaced also falls in the technology category of the present invention.
In addition, in the optical composite of the present invention, as Figure 10 and shown in Figure 11, a bottom 170 can further be formed at the below of the flat surfaces of structural sheet 100, and can contain light diffusion particle 175.
When bottom 170 forms by sclerosis, bind resin by sticking together finely with structural sheet 100, and with intersperse among the resin that light diffusion particle 175 in it has favorable compatibility and form, for example, light diffusion particle 175 intersperses among in it equably, causes particle can not separate or a kind of resin of Shen Dian.The concrete example of this resin comprises acryl resin, it comprises unsaturated polyester (UP), methyl methacrylate, Jia Jibingxisuanyizhi (ethyl methacrylate), isobutyl methacrylate (isobutyl methacrylate), n-BMA (n-butylmethacrylate), methacrylic acid normal-butyl methyl esters (n-butylmethyl methacrylate), acrylic acid, methacrylic acid, hydroxyethyl methylacrylate, hydroxy propyl methacrylate, hydroxy-ethyl acrylate, acrylamide, n-methylolacrylamide, glytidyl methacrylate, ethyl acrylate, isobutyl acrylate, n-butyl acrylate, and the homopolymer of 2-EHA, multipolymer or three multipolymers (terpolymer), amine ethyl formate (urethane) resin, epoxy resin, and melamine (melamine) resin.
The light diffusion particle 175 that bottom 170 is contained comprises organic filler or inorganic particulate, and can be identical or different with the contained light diffusion particle of structural sheet 100.The refractive index of light diffusion particle 175 has one with base resin or bind the different refractive index of resin, and it is in order to promoting the diffuser efficiency of light, and suitable degree is provided cover functions such as characteristic, penetrability and diffusivity.
Realizing infringement prevention and light diffusion, and when avoiding the service efficiency of light to reduce, considering the luminosity of front surface that then with the base resin of 100PBW or to bind resin be benchmark, the amount of light diffusion particle is contained in the bottom 170 with 0.01 to 30PBW.When the refractive index difference between light diffusing agent and the base resin is big, although only use a spot of light diffusing agent, also can show photodiffusion effect.On the contrary, the refractive index difference between light diffusing agent and base resin hour then must use a large amount of relatively light diffusing agents.In addition, when the use amount of light diffusion particle 175 was too much, luminosity can reduce on the contrary.Therefore, the amount of light diffusion particle 175 is adjusted, and is accompanied by the suitable high luminosity that covers characteristic to show.
By the light diffusion particle 175 formed surperficial protrusions that scatter, in order to during the loading of blooming or storage or blooming and other parts assembling, reduce with process apparatus in or the contact area of the apparent surface in other laminated optical film, thereby transporting and assembly process, avoiding being separated into the damage on each film and surface.This kind bottom 170 has the not predetermined thickness of specific limited, and it is thick to be preferably 10 to 200 μ m.
As shown in figure 12, in the optical composite of the present invention, structural sheet 100 can further be included in the top layer 180 on its body structure surface, and particle 185 can be contained in top layer 180.
The thickness on top layer 180 there is no specific limited, and is set at 10 to 200 μ m.
Thus, optical composite of the present invention can neither be provided with bottom 170 and also not be provided with top layer 180, optionally be provided with bottom 170 or top layer 180 one of them, or can be provided with bottom 170 and top layer 180 simultaneously.
Adhering part 120 can be formed on the structural sheet 100.When adhering part by the applying liquid adhesive agent on structural sheet 100 and when forming, adhesive agent only is coated on the peak, though the light collecting layer 130 that causes adhering part 120 to be laminated on it presses, agent covers yet the whole spatial structure of structural sheet 100 can't get adhered, guaranteeing existing of air duct 151, thereby avoid luminosity to reduce.The processing procedure that forms adhering part 120 does not have specific limited, but, as shown in figure 13, for avoiding the space between bonding material infiltration spatial structure, so utilize roller 400 with bonding material, the peak that is coated on the spatial structure of structural sheet 100 is a little located to carry out, and in order after sclerosis, to keep 100 to 15000cps viscosity, before dirty, under the effect of UV cured or Rapid Thermal sclerosis, it is hardened it at adhesive agent.Adhering part have per 25 millimeter 100 to 1000 grams (100～1000g/25mm) adhesion makes structural sheet 100 and light collecting layer 130 firmly to stick together mutually.The width of adhering part (120), can be structural sheet 100 spatial structure 111 spacings 1/10th to 1/5th.
Adhering part 120 must be transparent, so that can not lower luminosity, and has and is equal to or greater than 90% total transmittancy, and 1.40 to 1.60 refractive index.For reaching this purpose, adhering part 120 is made up of the bonding material that can harden, comprise UV cured dose or thermoinitiators, more specifically, for one or more are selected from acryl resin, silica (silicone) resin, epoxy resin and amine ethyl formate resin person.
Except the roller of the structural sheet 100 that uses the aforementioned liquids bonding material applies, the processing procedure that forms adhering part 120 also comprises the coating bonding material that can harden, and afterwards with its sclerosis, or uses the solid adhesive agent as adhesive film or a slice double faced adhesive tape.Adhering part 120 when light collecting layer 130 belows forms, and when then finishing it with the adhering to of structural sheet 100, and bonding material can't be along the surface of the spatial structure 111 of structural sheet 100 toward dirty, thus the stable formation of promotion air duct 151.For fixed sturcture layer stably 100 and light collecting layer 130, the adhesion of adhering part 120 can be set to per 25 millimeter 100 to 1000 grams (in 100～1000g/25mm) the scope.
Reduce to minimumly in order to represent the negative effect of sticking together performance and making optical property, adhering part 120 can have the thickness of 5 to 50 μ m.
Thus, light collecting layer 130 is laminated on the structural sheet 100, and air duct 151 is formed between the spatial structure 111 afterwards, to cause the refractive index difference of light collecting layer 130, luminosity is increased.
The resin that is used for light collecting layer 130 is formed and be there is no specific limited, and comprises the prismatic lens that is used for prior art or the known resin of prism film.For example can comprise ultraviolet polymerisable monomer or oligomer potpourri (oligomer mixture), and can comprise light initiator (photoinitiator).
The concentration structure of light collecting layer 130 can have polyhedron-shaped, and its section is polygon, semicircle or half elliptic; Or cylinder body shape, its section is polygon, semicircle or half elliptic.Can use the combination of one or more shapes.These structures can be distinguished arrangement adjacent one another are or non-conterminous.Light collecting layer 130 has the control light path, is passed to the function of front surface forward with the light that will spread, thereby further promotes luminosity.
The visual demand of optical composite of the present invention is further added processing procedure stabilizing agent, ultraviolet light absorber or ultra-violet stabilizer.
As the present invention with reference to only in order to illustrate but not of the present invention graphic in order to limit, when disclosing as described above, the various variations that the person of ordinary skill in the field does in not violating the technology of the present invention spirit scope, all genus claims of the present invention.
See through following example, with the detailed description of the invention in after, yet these examples are only in order to illustrating, and should not be construed as restriction the present invention.
＜example 1 〉
Form by polymethylmethacrylate, and have the structural sheet (TT:70% of 2.0mm thickness; Mist degree: a surface 99%), the processing procedure that sees through as the laser cutting forms figure, causes spatial structure interval 100 μ m each other, having bosom part height with formation is 50 μ m, and width is the air duct of the shape of 100 μ m, as shown in Figure 2, thereby finishes structural sheet.
A slice double faced adhesive tape (manufacturer: Sumiron; Name of product: TG4191; Total transmittancy: 99%; Refractive index: 1.49; Thickness: 25 μ m) be attached to prismatic lens (refractive index: 1.59 as light collecting layer; Basement membrane: polyethylene terephthalate (PET); Thickness: 188 μ m; Spacing: 50 μ m; Highly: lower surface 25 μ m) to form adhering part, attaches to the upper surface of the spatial structure of structural sheet, to produce optical composite after this adhering part.
＜example 2 〉
Example 1 is revised as, and makes by polymethylmethacrylate to be formed, and has the structural sheet (TT:70% of 2.0mm thickness; Mist degree: a surface 99%), to handle through lift-over, the height that has the bosom part with formation is 50 μ m, and width is the air duct of the shape of 100 μ m, as shown in Figure 3, thereby finishes structural sheet.
＜example 3 〉
Example 1 working pressure machine maintenance changes into, makes structural sheet be printed off as shown in Figure 4 graphics shape.So, the width of spatial structure is 100 μ m, and the height of bosom part is 50 μ m, and the width of air duct is 100 μ m.
＜example 4 〉
Example 1 is revised as, and uses prismatic lens (refractive index: 1.55; Basement membrane: polyethylene terephthalate (PET); Thickness: 188 μ m; Spacing: 50 μ m; Highly: 25 μ m).
＜example 5 〉
Example 1 is revised as, and uses by the formed structural sheet of polycarbonate resin.
＜example 6 〉
Example 1 is revised as, and use a slice total transmittancy is 85% double faced adhesive tape.
＜example 7 〉
Example 1 is revised as, and is being formed by plexiglass, and is having the structural sheet (TT:70% of 1.8mm thickness; Mist degree: on another surface 99%), see through co-extrusion pressure formation and formed, and have the bottom of 0.2mm thickness by the plexiglass of 100PBW and the silica pearl of 1PBW.Afterwards, in the mode identical, form air channel, adhering part and light collecting layer, to finish optical composite with example 1.
＜example 8 〉
The polycarbonate resin fat granule mixes with 1 to 1 weight ratio with the polystyrene resin grain, in 250 ℃ of fusings down, be squeezed into the thickness of 2.0mm, figure roller by being in contact with it afterwards, to cause the longitudinal profile spacing be 250 μ m and be the half elliptic convex lens figure of having of 50 μ m highly, be arranged in regularly on the surface of structural sheet, with the preparation structural sheet.
Use roller devices (manufacturer: Daiei gluing machine, DaeYoung Laminator thereafter; Name of product: JW096), see through roller and apply with adhesive agent (manufacturer: ternary, Sam Won; Name of product: MO-40) be coated on the peak of structural sheet, as shown in figure 13, and thermmohardening afterwards, so that to form width be 30 μ m and be the adhering part of 10 μ m highly.Measure peel strength (PeelStrength) to demonstrate adhesion thereafter.Adhesion is determined as per 25 millimeter 1000 gram (1000g/25mm), and viscosity measurement is 1500cps.Particularly, the measurement of peel strength is the thermmohardening adhering part that 13mm is wide, be attached to specific workpiece (corrosion resistant plate SUS303), it then is 2 kilograms cylinder through weight, speed with per minute 300mm, three reciprocating pressing, afterwards, when adhering part during with the angles oneselfs folding of 180 degree, it is that 300 ± 30 millimeters (300 ± 30mm/min) speed is stripped from per minute, when the length of being stripped from when adhering part reaches 25mm, use tensile machine (Shimaozy Autograph AGS-100A) to measure its intensity.
Be coated with on the spatial structure of adhering part lamination one prismatic lens (refractive index: 1.59; Basement membrane: polyethylene terephthalate (PET); Thickness: 188 μ m; Spacing: 50 μ m; Highly: 25 μ m), finishing the laminar structure that has structural sheet, thereby produce optical composite.
＜example 9 〉
Produce optical composite in the mode identical with example 8, except the spatial structure of structural sheet forms, make have spacing be 200 μ m the convex lens figure with have the convex lens figure that spacing is 300 μ m, be staggered in the mode of repetitive pattern.
＜example 10 〉
Produce optical composite in the mode identical,, be formed at the below of structural sheet except bottom as shown in figure 11 with example 8.Bottom contains the potpourri of the silica pearl of the base resin of 100PBW and 1PBW by co-extrusion pressure, be formed on the flat surfaces of structural sheet, and has the thickness of 0.2mm, this base resin is to be mixed with 1 to 1 weight ratio with the polystyrene resin grain by the polycarbonate resin fat granule, and forms in 250 ℃ of fusings down afterwards.
＜example 11 〉
Produce optical composite in the mode identical with example 8, the top layer except as shown in figure 12 is formed on the structural sheet.The potpourri of the silica pearl of the base resin of 100PBW and 1PBW is contained on the top layer by co-extrusion pressure, be formed on the body structure surface of structural sheet, and has the thickness of 0.2mm, this base resin is to be mixed with 1 to 1 weight ratio with the polystyrene resin grain by the polycarbonate resin fat granule, and forms in 250 ℃ of fusings down afterwards.
＜example 12 〉
Acrylate oligomer resin (refractive index: 1.57) be coated on the mould that can form the structural sheet identical with example 8, afterwards with polyethylene terephthalate film (happiness star electronics, HeeSungElectronics, model: LM170E01) laminated thereon, UV cured 3 seconds of working strength 120 watts (watt), separate from metal die afterwards, with the preparation structural sheet.Thereafter, adhering part forms in an identical manner, and prismatic lens attaches to, to produce optical composite.
＜example 13 〉
Produce optical composite in the mode identical with example 10, except used thickness is 10 μ m, and adhesion is the adhesive film (manufacturer: Sumiron of per 25 millimeter 1000 gram (1000g/25mm); Name of product: TG4193; Total transmittancy: 99%; Refractive index: 1.49; Thickness: 10 μ m) substitute adhesive agent, form adhering part.
＜comparative example 1 〉
Example 1 is revised as, and does not form air duct, and uses a slice double faced adhesive tape to stick together a prismatic lens.
＜comparative example 2 〉
Example 1 is revised as, and a slice double faced adhesive tape is attached to the body structure surface of structural sheet, and a prismatic lens is attached thereon afterwards.
＜comparative example 3 〉
Example 8 employed adhesive agents see through roller and apply to be coated on and do not have a light pervasion component (manufacturer: can swell Kolon of spatial structure; Trade name: DP350; Thickness: 2.0mm; Penetrability: 70.0%; Mist degree: on the surface 99%), and then harden, afterwards a prismatic lens (manufacturer: can swell Kolon; Trade name: LC213; Thickness: 188 μ m; Spacing: 50 μ m; Highly: 25 μ m; The pitch angle: flat surfaces 45 degree) gets adhered thereon, to produce optical composite.
＜comparative example 4 〉
Produce optical composite in the mode identical with example 10, height and spacing except the spatial structure peak dot of structural sheet determine randomly in the scope of 100 to 300 μ m.
By the optical composite of above-mentioned example and comparative example manufacturing, its luminosity of following assessment, cover characteristic and dirty.The results are shown in down tabulation 1.
(1) luminosity
Each optical composite of above-mentioned example and comparative example is installed in the backlight module that is used for 17 inch LCD panels, uses photometer (Tokyo optics, Topcon Japan; Name of product BM-7) measure the shading value of 13 random points, and on average, assessed according to following represented person thereafter:
◎: luminosity is equal to or greater than 4500cd/m
2
Zero: luminosity is between 3500cd/m
2With 4500cd/m
2Between, and less than 4500cd/m
2
△: luminosity is between 3000cd/m
2With 3500cd/m
2Between, and less than 3500cd/m
2
*: luminosity is less than 3000cd/m
2
(2) cover characteristic
Each optical composite of above-mentioned example and comparative example is installed in the backlight module that is used for 42 inch LCD panels, detects by an unaided eye, and whether can see light source, and visibility is followingly relatively assessed:
Visibility: weak ← ◎-zero-△-* → strong
(3) dirty assessment
Each optical composite of above-mentioned example and comparative example is installed in the backboard optical module that is used for 42 inch LCD faces, detects by an unaided eye, and whether can see that dirty as white point, visibility are followingly relatively assessed:
Visibility: weak ← ◎-zero-△-* → strong
[table 1]
| Luminosity | Cover | Dirty | |
| Example 1 | ○ | ○ | ○ |
| Example 2 | ○ | ○ | ○ |
| Example 3 | ○ | ○ | ○ |
| Example 4 | △ | ○ | ○ |
| Example 5 | ○ | ○ | ○ |
| Example 6 | △ | ○ | ○ |
| Example 7 | ○ | △ | △ |
| Example 8 | ◎ | △ | ○ |
| Example 9 | ○ | △ | ○ |
| Example 10 | ◎ | ◎ | ◎ |
| Example 11 | ○ | ○ | ○ |
| Example 12 | ○ | △ | ○ |
| Example 13 | ◎ | ◎ | ○ |
| Comparative example 1 | × | △ | ○ |
| Comparative example 2 | △ | △ | △ |
| Comparative example 3 | × | △ | ○ |
| Comparative example 4 | △ | ○ | × |
Can know and to know, to have proper standard or be higher than the luminosity of standard with the obtained optical composite of example of the present invention by The above results, dirty by this and can't be seen, more and, cover characteristic and luminosity and all maintain good horizontal.By this, observe the influence that luminosity is subjected to the air layer total area ratio, the long-range too air channel or the influence of the graphics shape of spatial structure or generation type.When the total transmittancy of adhering part reduces, light loss can take place, and then reduce luminosity slightly.
On the contrary, in comparative example, dirty clog-free being seen, therefore, even if luminosity with cover characteristic and be maintained at good horizontal, image is still had negative effect.Not only when air duct does not form, and when the ratio of air layer, when reducing, can see the photographic nucleation reduction because of adhering part by the formation order of adhering part.
Preamble is that technical characterictic of the present invention carries out specific description at preferred embodiment of the present invention, the technology people source of only being familiar with this area is when can the present invention being changed and revise not breaking away under spirit of the present invention and the principle, and these changes with revise, all should be covered by in the category that following claim defines.
Claims (30)
1. an optical composite is characterized in that, comprises:
One structural sheet has a light transmitting surface and a plurality of spatial structure with equal height;
One adhering part is formed at one of this structural sheet surface; And
One light collecting layer is formed at one of this adhering part surface.
2. optical composite as claimed in claim 1 is characterized in that, an air channel is formed between these spatial structures of this structural sheet.
3. optical composite as claimed in claim 1 is characterized in that, this light transmitting surface unevenness of this structural sheet.
4. optical composite as claimed in claim 1, it is characterized in that, further comprise one be formed at this structural sheet a surface go up one or two of top layer on this light transmitting surface that bottom and with respect to this light transmitting surface is formed at this structural sheet.
5. optical composite as claimed in claim 4 is characterized in that, one of them of this top layer and this bottom or two comprise the light diffusion particle.
6. optical composite as claimed in claim 5 is characterized in that, these light diffusion particles are with this top layer of formation and one of them of this bottom of 100 weight deals or two resin is a benchmark, contain 0.01 to 30 weight deal.
7. optical composite as claimed in claim 1, its feature have for fear of, this adhering part and are equal to or greater than 90% total transmittancy.
8. optical composite as claimed in claim 1 is characterized in that this adhering part has one 1.40 to 1.60 refractive index.
9. optical composite as claimed in claim 1 is characterized in that, this adhering part has per 25 millimeter 100 adhesion to 1000 grams.
10. optical composite as claimed in claim 1 is characterized in that, this adhering part is formed by one UV cured dose or a thermoinitiators, and has 100 to 15000cps viscosity after sclerosis.
11. optical composite as claimed in claim 1 is characterized in that, this adhering part is formed by a solid adhesive agent.
12. optical composite as claimed in claim 1 is characterized in that, this adhering part has a thickness that is equal to or less than 10 μ m.
13. optical composite as claimed in claim 1 is characterized in that, these spatial structures of this structural sheet are the structure that having of a kind of linearity or non-linear arrangement is selected from a polygonal taper, a taper shape, a semisphere and an aspheric shape.
14., it is characterized in that this structural sheet has a fixing distance as claim 1 or 13 described optical composites between the peak dot of two these spatial structures adjacent one another are.
15., it is characterized in that having a spacing that is equal to or less than 300 μ m between these spatial structures as claim 1 or 13 described optical composites.
16. as claim 1 or 13 described optical composites, it is characterized in that, between these spatial structures apart from being at least four times of one height.
17. optical composite as claimed in claim 13 is characterized in that, this adhering part has a width of 1/10th to 1/5th for these spatial structure spacings.
18. optical composite as claimed in claim 1 is characterized in that, this structural sheet is during by the figure roller of a base resin by being in contact with it, this base resin of co-extrusion pressure and forming.
19. optical composite as claimed in claim 18, it is characterized in that this base resin is selected from the following group that constitutes: with the polycarbonate resin of part by weight 1 to 9 to 9 to 1 mixing and potpourri, polycarbonate resin, polystyrene resin and the polymethyl methacrylate resin of polystyrene resin.
20. optical composite as claimed in claim 18 is characterized in that, is benchmark with this base resins of 100 weight deals, can further contain the light diffusion particle of 10 to 500 weight deals.
21. as claim 5 or 20 described optical composites, it is characterized in that, these light diffusion particles are selected from the following group that constitutes for one or more: acrylic particles comprises the homopolymer or the multipolymer of methyl methacrylate, acrylic acid, methacrylic acid, hydroxyethyl methylacrylate, hydroxy propyl methacrylate, acrylamide, n-methylolacrylamide, glytidyl methacrylate, ethyl acrylate, isobutyl acrylate, n-butyl acrylate and 2-EHA; The alkene particle comprises tygon, polystyrene and polypropylene; Propylene-olefin copolymer particle; Multilayer multicomponent particle by forming earlier the homopolymer particle, gets its covering with the monomer of other type afterwards again; The silica alkyl polymer particle; The tetrafluoroethene particle; Monox; Aluminium oxide; Titanium dioxide; Zirconia and magnesium fluoride.
22. the manufacture method of an optical composite is characterized in that, comprises the following step:
Prepare a structural sheet, it has a light transmitting surface and a plurality of spatial structure with equal height;
On a flat surfaces of a light collecting layer, form an adhering part; And
This adhering part is attached to this structural sheet.
23. the manufacture method of an optical composite is characterized in that, comprises the following step:
Prepare a structural sheet, it has a light transmitting surface and a plurality of spatial structure with equal height;
An overlay film roller of predetermined altitude is kept in use from this structural sheet place, adhesive agent is coated on the peak of these spatial structures of this structural sheet;
The harden adhesive agent of this coating is to form an adhering part; And
Lamination one light collecting layer.
24., it is characterized in that this light transmitting surface unevenness of this structural sheet as claim 22 or 23 described manufacture methods.
25., it is characterized in that the step of this preparation structural sheet comprises when the figure roller of a base resin by being in contact with it this base resin of co-extrusion pressure as claim 22 or the 23rd described manufacture method.
26., it is characterized in that this adhering part has per 25 millimeter 100 adhesion to 1000 grams as claim 22 or 23 described manufacture methods.
27., it is characterized in that this adhering part is formed by one UV cured dose or a thermoinitiators as claim 22 or 23 described manufacture methods, and after sclerosis, have 100 to 15000cps viscosity.
28. manufacture method as claimed in claim 22 is characterized in that, this adhering part is formed by a solid adhesive agent.
29. manufacture method as claimed in claim 23 is characterized in that, this adhering part has a width of 1/10th to 1/5th for these spatial structure spacings of this structural sheet.
30., it is characterized in that this adhering part has a thickness that is equal to or less than 10 μ m as claim 22 or 23 described manufacture methods.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070000068A KR20080063543A (en) | 2007-01-02 | 2007-01-02 | The plate for brightness enhancement and method of manufacturing the same |
| KR1020070000068 | 2007-01-02 | ||
| KR1020070131520 | 2007-12-14 | ||
| KR1020070131522 | 2007-12-14 | ||
| KR1020080000057 | 2008-01-02 | ||
| KR1020080000053 | 2008-01-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101595404A true CN101595404A (en) | 2009-12-02 |
Family
ID=39815191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008800013964A Pending CN101595404A (en) | 2007-01-02 | 2008-01-02 | Optical composite and manufacture method thereof |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20080063543A (en) |
| CN (1) | CN101595404A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806700A (en) * | 2012-08-04 | 2012-12-05 | 方显峰 | Long-afterglow luminous product easy to be excited |
| CN103675964A (en) * | 2012-09-14 | 2014-03-26 | 群康科技(深圳)有限公司 | Optical film and display device comprising same |
| CN103946329A (en) * | 2011-10-05 | 2014-07-23 | 3M创新有限公司 | Microstructured transfer tapes |
| CN104109485A (en) * | 2014-06-25 | 2014-10-22 | 苏州世优佳电子科技有限公司 | Viscose glue used for apparatus and preparation method thereof |
| CN107991725A (en) * | 2018-01-29 | 2018-05-04 | 京东方科技集团股份有限公司 | A kind of prism, backlight source module and display device |
| WO2019174575A1 (en) * | 2018-03-16 | 2019-09-19 | 京东方科技集团股份有限公司 | Prism sheet, backlight module, display device, and manufacturing method for prism sheet |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102074677B1 (en) * | 2013-11-19 | 2020-02-07 | 엘지디스플레이 주식회사 | Prism sheet and back light unit for liquid crystal display device having the same |
-
2007
- 2007-01-02 KR KR1020070000068A patent/KR20080063543A/en not_active Application Discontinuation
-
2008
- 2008-01-02 CN CNA2008800013964A patent/CN101595404A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103946329A (en) * | 2011-10-05 | 2014-07-23 | 3M创新有限公司 | Microstructured transfer tapes |
| CN103946329B (en) * | 2011-10-05 | 2016-03-23 | 3M创新有限公司 | Micro-structural transition zone |
| CN102806700A (en) * | 2012-08-04 | 2012-12-05 | 方显峰 | Long-afterglow luminous product easy to be excited |
| CN103675964A (en) * | 2012-09-14 | 2014-03-26 | 群康科技(深圳)有限公司 | Optical film and display device comprising same |
| CN104109485A (en) * | 2014-06-25 | 2014-10-22 | 苏州世优佳电子科技有限公司 | Viscose glue used for apparatus and preparation method thereof |
| CN107991725A (en) * | 2018-01-29 | 2018-05-04 | 京东方科技集团股份有限公司 | A kind of prism, backlight source module and display device |
| CN107991725B (en) * | 2018-01-29 | 2020-03-06 | 京东方科技集团股份有限公司 | Prism, backlight module and display device |
| US10948634B2 (en) | 2018-01-29 | 2021-03-16 | Beijing Boe Display Technology Co., Ltd. | Prism sheet, backlight module and display device |
| WO2019174575A1 (en) * | 2018-03-16 | 2019-09-19 | 京东方科技集团股份有限公司 | Prism sheet, backlight module, display device, and manufacturing method for prism sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080063543A (en) | 2008-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102176081B (en) | Optical sheet | |
| CN101636670B (en) | Optical sheets | |
| CN101595404A (en) | Optical composite and manufacture method thereof | |
| KR100909427B1 (en) | Light control film | |
| KR20090056903A (en) | Multi-functional optic sheet | |
| CN101995595A (en) | Optical sheet for controlling the direction of ray of light | |
| KR101157298B1 (en) | Optic complex member | |
| KR100920645B1 (en) | Prism Complex Film | |
| KR20100012666A (en) | A optical sheet and a liquid crystal display device comprising the same | |
| KR101087026B1 (en) | Multi-functional optic film | |
| US20100055409A1 (en) | Optical composite and method of manufacturing the same | |
| KR100961702B1 (en) | Optical Sheet, Back Light Unit And Liquid Crystal Display Device Comprising The Same | |
| KR101233533B1 (en) | Backlight Unit Assembly Comprising Light Diffusion member | |
| US9020315B2 (en) | Optical sheet, backlight unit using the same and method for producing the same | |
| KR20110107685A (en) | Reflection sheet for led source back light unit | |
| KR101137622B1 (en) | Patterned Diffuser Plate and Backlight Unit Assembly Comprising the Same | |
| CN101802654B (en) | Multi-functional optical film | |
| KR101244550B1 (en) | Light Diffusion member | |
| KR100980068B1 (en) | Multi-functional optic film | |
| KR100544518B1 (en) | Prismatic film for minimizing loss of light source | |
| KR102013498B1 (en) | Liquid Crystal Display device using high brightness film and composite sheet for liquid crystal display | |
| WO2008082248A1 (en) | Optical composite and method of manufacturing the same | |
| CN220105328U (en) | Diffusion plate, backlight module and display device | |
| KR20180019627A (en) | Functional reflection sheet for back light unit | |
| KR101370167B1 (en) | Backlight unit assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091202 |