CN107272092A - A kind of warpage preventing diffusion barrier and preparation method thereof - Google Patents
A kind of warpage preventing diffusion barrier and preparation method thereof Download PDFInfo
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- CN107272092A CN107272092A CN201710521524.9A CN201710521524A CN107272092A CN 107272092 A CN107272092 A CN 107272092A CN 201710521524 A CN201710521524 A CN 201710521524A CN 107272092 A CN107272092 A CN 107272092A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0268—Diffusing elements; Afocal elements characterized by the fabrication or manufacturing method
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Abstract
The invention discloses a kind of warpage preventing diffusion barrier, including base material, it is arranged on the positive coating of base material one side and is arranged on the priming coat of base material another side, the horizontal percent thermal shrinkage of the base material<0.5%, longitudinal percent thermal shrinkage<1%, the positive coating includes acrylic resin, diffusion particle, curing agent, dispersant and waterproof agent.Membrane preparation method is spread the invention also discloses warpage preventing, using low stress base material, the pre-heat treatment first is carried out further to eliminate internal stress to base material before coating, coating treatment is carried out in base material upper and lower surface, waterproof agent is added in positive coating, curing operation is carried out after the completion of coating.The diffusion barrier warpage degree of the present invention is relatively low, and sticks up phenomenon without obvious bulge, wave, and liquid crystal display quality is preferable.
Description
Technical field
The invention belongs to diffusion barrier field, and in particular to a kind of warpage preventing diffusion barrier and preparation method thereof.
Background technology
In lcd technology, diffusion barrier is important part.The main function of diffusion barrier sends LED lamp bead
Spot light diverging is changed into area source.Diffusion barrier includes upper diffusion barrier and lower diffusion barrier.Upper diffusion barrier is distinguished as with lower diffusion barrier
Mist degree, transmitance are inconsistent.Lower diffusion barrier touches light guide plate, it is desirable to which possessing preferably prevents the ability of scratch light guide plate.On
Diffusion barrier touches panel, it is desirable to which possessing preferably prevents scratch polaroid ability.Meanwhile, Display Technique is put down to diffusion barrier sheet
Whole property has higher requirements.Diffusion barrier sheet produces warpage, can produce considerable influence to display effect, can produce color and luster inhomogeneities,
Taste declines.During current module group assembling, the requirement to warpage is stricter.Requirement to monomer is that, less than 2mm, some producers require
Less than 1mm.Require simultaneously, under the conditions of high temperature (65 DEG C), hot and humid (65 DEG C, 95% humidity), the diaphragm in module is without color and luster
Inhomogeneities phenomenon, taste is good.
Diffusion barrier is mainly made up of PET base material, diffusion particle, adhesive, auxiliary agent etc..Diffusion barrier include face-coating and
Back coating.Face-coating influences larger to optical property, and back coating is mainly functional layer.Face-coating thickness is more than the back side
Coating.Because PET, diffusion particle, adhesive have certain water imbibition.Diaphragm can all absorb water under humid tropical condition, by
It is more than back side thickness in positive face thickness, the two-sided stress difference after water suction causes warpage.On the other hand, PET is drawn high two-way
During, if stress release is not exclusively, after diffusion barrier is finished, in the presence of temperature, humidity, diaphragm starts release should
Power, it is easy to produce edge wave stick up, the phenomenon such as bulge.
The mode of control warpage mainly has following several ways in the prior art：1st, for module, design prevents diaphragm from sticking up
Bent module, shortcoming is that design cost is higher；2nd, for diffuser plate, in diffuser plate base material two sided coatings separation layer, separation layer
Material is cyclenes hydrocarbon materials, is provided simultaneously with water-proof function；3rd, for cutoff filter, plate different in cutoff filter
The composite film of refractive index, it is ensured that the stress on two sides is suitable；4th, for reflectance coating, using coating co-extrusion mode up and down, control two
The stress equilibrium in face, or waterproof coating is soaked to reflectance coating, reach the effect of waterproof and stress equilibrium；5th, it is thin for polyimides
Film, the scattered padded coaming of stress release and molecular shape change is added in strand, elimination stress effect is played；6th, for diffusion
Film, it is ensured that difference in height≤3um of upper diffusion layer and lower diffusion layer, it is restricted to adjusting other physical property.
The mode of warpage is controlled above, and general principle is all to eliminate internal stress, film upper and lower surface stress equilibrium as far as possible, preventing
Water.But have that design cost is high, operability is not high, have the shortcomings that limitation.Meanwhile, some method (such as extrusion, plating) nothings
Method is copied in diffusion barrier.
The content of the invention
It is an object of the present invention to provide a kind of warpage preventing diffusion barrier, with solve in the prior art diffusion barrier warpage with
And display effect it is poor the problem of.
To achieve these goals, the invention provides a kind of warpage preventing diffusion barrier, including base material, be arranged on base material one side
Positive coating and be arranged on the priming coat of base material another side, the horizontal percent thermal shrinkage of the base material<0.5%, longitudinal percent thermal shrinkage<
1%, the positive coating includes acrylic resin, diffusion particle, curing agent, dispersant and waterproof agent.
Further, base material is optical grade polyethylene terephthalate, PEN, makrolon
Any of resin, acrylic resin, preferably polyethylene terephthalate.
Further, the TG points difference of the TG points of acrylic resin and the base material is less than 10 DEG C.
Further, diffusion particle is polymethyl methacrylate (PMMA), Vinalac 5920 (PBMA), gathered
One or more in styrene (PS), nylon (NYLON).
Further, diffusion particle is that average grain diameter is 5~20 μm, and the particle at least containing two kinds of different-grain diameters.
Further, waterproof agent is fluorosilane-type materials, preferably BYK3700.
Further, priming coat includes the cured modified acrylic resins of UV.
Further, it is additionally provided with priming coat between base material and positive coating.
Further, the two sides of base material is also respectively provided with precoated shet.
In addition, to achieve the above object, the invention provides a kind of preparation method of warpage preventing diffusion barrier, including following step
Suddenly：
1) base material the pre-heat treatment：By base material in 40-80 DEG C of gradient baking oven, carried out with 5-20m/min speed by baking oven
Winding.
2) prepared by priming coat：By the coating liquid of the cured modified acrylic resin containing UV in after substrate surface, with 20-
40m/min speed, by drying oven solvent flashing, passes through uviol lamp, winding.
3) prepared by positive coating：The base material for completing priming coat is unreeled to head region is applied, will be by diffusion particle, diluent, third
The coating fluid gravure roll application that olefin(e) acid resin, levelling agent, dispersant, curing agent and waterproof agent are mixed is in the table of base material
Face, with 15-35m/min speed, by drying oven solvent flashing, winding obtains the positive coating of diffusion barrier.
Further, in step 2) and step 3) between also include, in the another side painting bottom coating of base material.
Further, in addition to, in step 3) afterwards carry out curing operation, 50 DEG C curing chambers cure 24h.
Compared with prior art, the present invention has the advantages that：
The present invention is using horizontal percent thermal shrinkage<0.5%, longitudinal percent thermal shrinkage<1% low stress base material, it is first right before coating
Base material carries out the pre-heat treatment further to eliminate internal stress, adds anti-in base material upper and lower surface carries out coating treatment, positive coating
Water auxiliary agent, carries out curing operation, to reduce diffusion barrier warpage degree, hence it is evident that improve liquid crystal display quality after the completion of coating.
Brief description of the drawings
The Figure of description for constituting the part of the present invention is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the warpage preventing diffusion barrier structural representation of one embodiment of the present invention；
Fig. 2 shows the warpage preventing diffusion barrier structural representation of another embodiment of the present invention；
Fig. 3 shows the warpage preventing diffusion barrier structural representation of another embodiment of the present invention；
Wherein, 10 be base material, and 11,12 be precoated shet, and 20 be priming coat, and 30 be positive coating.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model that the present invention is protected
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two ", " on ", " under " etc. is for distinguishing similar object, without for describing specific order or precedence.It should manage
The data that solution is so used can be exchanged in the appropriate case, so as to embodiments of the invention described herein.In addition, term
" comprising " and " having " and their any deformation, it is intended that covering is non-exclusive to be included, for example, containing a series of steps
Process, method, system, product or the equipment of rapid or unit are not necessarily limited to those steps clearly listed or unit, but can
Including not listing clearly or for the intrinsic other steps of these processes, method, product or equipment or unit.
From background technology, existing diffusion barrier warpage is serious, influences larger to display effect, is also easy to produce color and luster uneven
Even property, and warpage is more serious under the conditions of hot and humid, display effect is poor.The present inventor is carried out regarding to the issue above
Research, it is proposed that a kind of warpage preventing diffusion barrier, as shown in figure 1, including base material 10, being arranged on the positive coating 30 of base material one side and setting
Put the priming coat 20 in base material another side, the horizontal percent thermal shrinkage of the base material 10<0.5%, longitudinal percent thermal shrinkage<1%, it is positive to apply
Layer includes acrylic resin, diffusion particle, curing agent, dispersant and waterproof agent.
Above-mentioned base material is optical grade polyethylene terephthalate (PET), PEN (PEN), gathered
Any of carbonate resin (PC), acrylic resin, preferably polyethylene terephthalate (PET).Above-mentioned base material
In process of production by processes such as biaxial tension, crystallizations, horizontal (TD directions) percent thermal shrinkage<0.5%, longitudinal direction (MD directions) heat
Shrinkage factor<1%, thus the stress of base material is relatively low.
Positive coating acrylic resin can be selected from common acrylic resin in the art, and the TG points of its TG point and base material are poor
Value is less than 10 DEG C, can be so consistent in thermal expansion contraction, reduces stress difference, mitigates the warpage journey of diffusion barrier
Degree.Positive coating diffusion particle is polymethyl methacrylate (PMMA), Vinalac 5920 (PBMA), polystyrene
(PS), the one or more in nylon (NYLON), average grain diameter is 5~20 μm, and the particle at least containing two kinds of different-grain diameters.
Curing agent is the common isocyanate curing agent in this area, can occur heat cure reaction with the acrylate of the present invention.
In order to prevent diffusion barrier from being absorbed water under the conditions of hot and humid, the two-sided stress of diffusion barrier is caused to cause warpage greatly, it is above-mentioned
Also include waterproof agent in positive coating, waterproof agent can be selected from fluorosilane-type materials common on the market, such as BKY3700.It is logical
Cross and add waterproof agent in positive coating, can make diffusion barrier surface that there is preferable hydrophobic effect, be effectively improved diffusion barrier suction
Aqueous energy, reduces warpage.
Also include retarder thinner, levelling agent etc. in the coating fluid of above-mentioned positive coating.The retarder thinner is ethyl acetate, second
Two or more mixed solvent in acid butyl ester, butanone, cyclohexanone, the levelling agent helps for levelling common on the market
Agent.
The priming coat of the present invention includes the cured modified acrylic resins of UV, diffusion particle, solvent, initiator etc., above-mentioned UV
Cured modified acrylic resin, diffusion particle, solvent, initiator are the common resin in this area, particle, solvent and initiation
Agent, will not be repeated here.Antistatic additive can also be added in above-mentioned priming coat, makes warpage preventing diffusion barrier that there is necessarily antistatic
Performance, the antistatic additive is the common material in this area.
It is preferably carried out in one kind of the present invention in mode, as shown in Fig. 2 being additionally provided between base material 10 and positive coating 30
Priming coat 20, so that the two sides of base material 10 is provided with priming coat, by carrying out primary coat, coating substance knot in base material upper and lower surface
Structure is finer and close, so as to reach the stress equilibrium of base material upper and lower surface.
The present invention it is another be preferably carried out in mode, as shown in figure 3, the two sides of base material 10 be also respectively provided with it is pre-
Coating, can both improve the adhesive force of positive coating, priming coat and base material, can increase consistency again, make base material upper and lower surface stress
Balance.
In addition, present invention also offers a kind of preparation method of warpage preventing diffusion barrier, comprising the following steps：
1) base material the pre-heat treatment：By base material in 40-80 DEG C of gradient baking oven, carried out with 5-20m/min speed by baking oven
Winding.
2) prepared by priming coat：By the coating liquid of the cured modified acrylic resin containing UV in after substrate surface, with 20-
40m/min speed, by drying oven solvent flashing, passes through uviol lamp, winding.
3) prepared by positive coating：The base material for completing priming coat is unreeled to head region is applied, will be by diffusion particle, diluent, third
The coating fluid gravure roll application that olefin(e) acid resin, levelling agent, dispersant, curing agent and waterproof agent are mixed is in the table of base material
Face, with 15-35m/min speed, by drying oven solvent flashing, winding obtains the positive coating of diffusion barrier.
Above-mentioned steps 1) in, the temperature near base material TG points carries out the macromolecule molecule in the pre-heat treatment, base material to base material
Chain redirects arrangement, can further eliminate internal stress.
The present invention one kind be preferably carried out in mode, in step 2) and step 3) between also include, in the another of base material
Coated on one side priming coat, so that the two-sided formation priming coat of base material, coating substance structure is finer and close, so as to reach following table on base material
The stress equilibrium in face.
In another preferred embodiment of the present invention, in addition to, in step 3) curing operation is carried out afterwards, at 50 DEG C
Curing chamber curing 24h.During maturing process is an important step of diffusion barrier dimensionally stable, maturing process, reaction completely
Reaction persistently carry out, and under the appropriate temperature conditions, the macromolecular chain of glue-line is being arranged, and eliminates internal stress.
Below with reference to embodiment and comparative example, beneficial effects of the present invention are further illustrated.Obviously, described implementation
Example only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
Embodiment 1
Warpage preventing diffusion barrier as shown in Figure 1, using 188 μm of optical grade PET, horizontal percent thermal shrinkage is 0.2%, longitudinal direction
Percent thermal shrinkage is 0.5%, and the optical grade PET is handled and received by 40-80 DEG C of gradient baking oven with 20m/min speed
Volume；By priming coat coating liquid in after substrate surface, with 40m/min speed, by drying oven solvent flashing, by ultraviolet
Lamp, winding；The base material for completing priming coat is unreeled to head region is applied, by positive coating coating fluid gravure roll application in the table of base material
Face, with 35m/min speed, by drying oven solvent flashing, winding obtains the positive coating of diffusion barrier.
Wherein, positive coating coating fluid is 26 parts of ethyl acetate, 26 parts of butyl acetate, 24 parts of modified acroleic acids, 8.5 parts
5 μm and 12.6 parts of 12 μm of polydispersion PMMA particles, 0.5 part of dispersant P104S (BYK manufactures), 0.1 part of levelling agent
BYK354 (BYK manufactures), 1 part of BYK3700, the mixture of 1.3 parts of curing agent (model DHD01A, KDX).Priming coat coating fluid
For 30 parts of ethyl acetate, 30 parts of butyl acetates, 35 parts of modified acroleic acid UV resins (HAS03A, KDX), 4 parts of 5 μm of PBMA particles,
The mixture of 1 part of initiator 184 (manufacture of double bond chemical industry).
Embodiment 2
Warpage preventing diffusion barrier as shown in Figure 1, using 100 μm of optical grade PET, horizontal percent thermal shrinkage is 0.3%, longitudinal direction
Percent thermal shrinkage is 0.8%, and the optical grade PET is handled and received by 40-80 DEG C of gradient baking oven with 10m/min speed
Volume；By priming coat coating liquid in after substrate surface, with 30m/min speed, by drying oven solvent flashing, by ultraviolet
Lamp, winding；The base material for completing priming coat is unreeled to head region is applied, by positive coating coating fluid gravure roll application in priming coat
Surface, with 25m/min speed, by drying oven solvent flashing, winding obtains the positive coating of diffusion barrier.The positive coating, primary coat
Layer coating fluid be the same as Example 1.
Embodiment 3
Warpage preventing diffusion barrier as shown in Figure 2, using 100 μm of optical grade PET, horizontal percent thermal shrinkage is 0.3%, longitudinal direction
Percent thermal shrinkage is 0.8%, and the optical grade PET is handled and wound by 40-80 DEG C of gradient baking oven with 5m/min speed；
By priming coat coating liquid in after substrate surface, with 20m/min speed, by drying oven solvent flashing, by uviol lamp,
Winding；In the same way in base material another side painting bottom coating, two-sided primary coat is completed；The base material for completing two-sided priming coat is put
Volume is to head region is applied, by positive coating coating fluid gravure roll application in the surface of priming coat, with 15m/min speed, by drying
Baking oven solvent flashing, winding obtains the positive coating of diffusion barrier.The positive coating, priming coat coating fluid be the same as Example 1.
Embodiment 4
Warpage preventing diffusion barrier as shown in Figure 3, compared with Example 2, difference is：After base material the pre-heat treatment, in base material
Two sides is respectively coated precoated shet 11 and 12, and pre-coating material is water-soluble polyurethane acrylic resin.
Embodiment 5
Compared with Example 3, diffusion barrier winding obtained proceeds curing operation, is cured in 50 DEG C of curing chambers
24h。
Comparative example 1
It is with the difference of embodiment 1：Optical grade PET, horizontal percent thermal shrinkage is 1%, and longitudinal percent thermal shrinkage is 1.4%, no
Including the pre-heat treatment.
Comparative example 2
It is with the difference of embodiment 1：Optical grade PET, horizontal percent thermal shrinkage is 1%, and longitudinal percent thermal shrinkage is 1.4%, just
Coating is free of waterproof agent.
The transmitance (T) and mist degree of warpage preventing diffusion barrier are measured using mist shadow instrument (NDH2000, Japan's electricity color) is transmitted
(H).The water contact angle of warpage preventing diffusion barrier is determined using water contact angle instrument (producer Kruss, model DSA25-Kruss).Will
Diffusion barrier is placed to take out after 500h in the environment of hot and humid (65 DEG C, 95% humidity) and placed on a glass, tests warpage
Height.Visually the wave of observation diffusion barrier sticks up and bulge situation.
Test result is as shown in the table：
| H/% | T/% | Water contact angle | Warpage/mm | Wave sticks up | Bulge | |
| Embodiment 1 | 96.55 | 75.78 | 103.3° | 0.85 | Nothing | Nothing |
| Embodiment 2 | 95.96 | 76.88 | 102° | 0.95 | Nothing | Nothing |
| Embodiment 3 | 95.34 | 76.23 | 102° | 0.2 | Nothing | Nothing |
| Embodiment 4 | 95.62 | 74.98 | 102.4° | 0.6 | Nothing | Nothing |
| Embodiment 5 | 95.90 | 75.01 | 101.9° | 0.1 | Nothing | Nothing |
| Comparative example 1 | 94.97 | 76.32 | 102.1° | 1.6 | Nothing | Have |
| Comparative example 2 | 96.01 | 76.32 | 90° | 2 | Have | Nothing |
From above example and comparative example, the present invention is using horizontal percent thermal shrinkage<0.5%, longitudinal percent thermal shrinkage<
1% low stress base material, first carries out the pre-heat treatment further to eliminate internal stress to base material before coating, enters in base material upper and lower surface
Waterproof agent is added in row coating treatment, positive coating, curing operation is carried out after the completion of coating.The diffusion barrier warp value of the present invention<
1mm, and phenomenon is stuck up without obvious bulge, wave, liquid crystal display quality is preferable.
It should be noted that embodiment is only the explanation to technical solution of the present invention, it should not be managed
Solve as the restriction to technical solution of the present invention, any only to make local change using the substantive content of the invention of the present invention, Reng Yingluo
Enter in protection scope of the present invention.
Claims (12)
1. a kind of warpage preventing diffusion barrier, including base material (10), it is arranged on the positive coating (30) of base material one side and to be arranged on base material another
Priming coat (20) simultaneously, it is characterised in that：The horizontal percent thermal shrinkage of the base material (10)<0.5%, longitudinal percent thermal shrinkage<
1%, the positive coating includes acrylic resin, diffusion particle, curing agent, dispersant and waterproof agent.
2. warpage preventing diffusion barrier according to claim 1, it is characterised in that：The base material is optical grade poly terephthalic acid
Any of glycol ester, PEN, polycarbonate resin, acrylic resin, preferably gather to benzene two
Formic acid glycol ester.
3. warpage preventing diffusion barrier according to claim 1, it is characterised in that：(vitrifying turns the TG of the acrylic resin
Move temperature) the TG points difference with the base material is put less than 10 DEG C.
4. warpage preventing diffusion barrier according to claim 1, it is characterised in that：The diffusion particle is poly-methyl methacrylate
One or more in ester (PMMA), Vinalac 5920 (PBMA), polystyrene (PS), nylon (NYLON).
5. warpage preventing diffusion barrier according to claim 1, it is characterised in that：The diffusion particle be average grain diameter be 5~
20 μm, and the particle at least containing two kinds of different-grain diameters.
6. warpage preventing diffusion barrier according to claim 1, it is characterised in that：The waterproof agent is fluorosilane-type materials, excellent
Elect BYK3700 as.
7. warpage preventing diffusion barrier according to claim 1, it is characterised in that：The priming coat includes the cured modified propylene of UV
Acid resin.
8. warpage preventing diffusion barrier according to claim 1, it is characterised in that：The base material (10) and the positive coating (30)
Between be additionally provided with priming coat (20).
9. warpage preventing diffusion barrier according to claim 1, it is characterised in that：The two sides of the base material (10) is also set respectively
There is precoated shet.
10. a kind of preparation method of warpage preventing diffusion barrier, it is characterised in that comprise the following steps：
1) base material the pre-heat treatment：By base material in 40-80 DEG C of gradient baking oven, wound with 5-20m/min speed by baking oven.
2) prepared by priming coat：By the coating liquid of the cured modified acrylic resin containing UV in after substrate surface, with 20-40m/
Min speed, by drying oven solvent flashing, passes through uviol lamp, winding.
3) prepared by positive coating：The base material for completing priming coat is unreeled to head region is applied, will be by diffusion particle, diluent, acrylic acid
The coating fluid gravure roll application that resin, levelling agent, dispersant, curing agent and waterproof agent are mixed in the surface of base material, with
15-35m/min speed, by drying oven solvent flashing, winding obtains the positive coating of diffusion barrier.
11. the preparation method of warpage preventing diffusion barrier according to claim 10, it is characterised in that：In step 2) and step 3)
Between also include, in the another side painting bottom coating of base material.
12. the preparation method of the warpage preventing diffusion barrier according to claim 10 or 11, it is characterised in that：Also include, in step
It is rapid 3) to carry out curing operation afterwards, cure 24h in 50 DEG C of curing chambers.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196466A (en) * | 2019-05-24 | 2019-09-03 | 河南镀邦光电股份有限公司 | A kind of low warpage cutoff filter and its film plating process |
| CN112300431A (en) * | 2020-11-08 | 2021-02-02 | 合肥乐凯科技产业有限公司 | Optical diffusion film |
| CN113534308A (en) * | 2021-05-27 | 2021-10-22 | 张家港康得新光电材料有限公司 | Anti-warping diffusion film and preparation method thereof |
| CN114815022A (en) * | 2022-04-12 | 2022-07-29 | 凯鑫森(上海)功能性薄膜产业股份有限公司 | High-shielding double-sided diffusion film and preparation method thereof |
| US11485875B2 (en) | 2018-03-09 | 2022-11-01 | Lg Chem, Ltd. | Visibility improving film for display panel and display device comprising same |
| CN115746370A (en) * | 2022-11-18 | 2023-03-07 | 江苏斯迪克新材料科技股份有限公司 | Matte hardened semitransparent optical film and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285897A (en) * | 2007-04-11 | 2008-10-15 | 新日铁化学株式会社 | Light diffusing plate resin composition and light diffusing plate |
| CN103852817A (en) * | 2014-03-14 | 2014-06-11 | 宁波激智科技股份有限公司 | Quantum dot film applied to backlight module |
| CN104566232A (en) * | 2015-01-09 | 2015-04-29 | 张家港康得新光电材料有限公司 | Light-emitting layer structure, production method and backlight |
| CN104962043A (en) * | 2015-05-29 | 2015-10-07 | 吉翔宝（太仓）离型材料科技发展有限公司 | PET photodiffusion release film |
-
2017
- 2017-06-30 CN CN201710521524.9A patent/CN107272092B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285897A (en) * | 2007-04-11 | 2008-10-15 | 新日铁化学株式会社 | Light diffusing plate resin composition and light diffusing plate |
| CN103852817A (en) * | 2014-03-14 | 2014-06-11 | 宁波激智科技股份有限公司 | Quantum dot film applied to backlight module |
| CN104566232A (en) * | 2015-01-09 | 2015-04-29 | 张家港康得新光电材料有限公司 | Light-emitting layer structure, production method and backlight |
| CN104962043A (en) * | 2015-05-29 | 2015-10-07 | 吉翔宝（太仓）离型材料科技发展有限公司 | PET photodiffusion release film |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11485875B2 (en) | 2018-03-09 | 2022-11-01 | Lg Chem, Ltd. | Visibility improving film for display panel and display device comprising same |
| CN110196466A (en) * | 2019-05-24 | 2019-09-03 | 河南镀邦光电股份有限公司 | A kind of low warpage cutoff filter and its film plating process |
| CN110196466B (en) * | 2019-05-24 | 2023-11-28 | 河南镀邦光电股份有限公司 | Low-warpage infrared cut-off filter and film coating method thereof |
| CN112300431A (en) * | 2020-11-08 | 2021-02-02 | 合肥乐凯科技产业有限公司 | Optical diffusion film |
| CN112300431B (en) * | 2020-11-08 | 2022-04-15 | 合肥乐凯科技产业有限公司 | Optical diffusion film |
| CN113534308A (en) * | 2021-05-27 | 2021-10-22 | 张家港康得新光电材料有限公司 | Anti-warping diffusion film and preparation method thereof |
| CN114815022A (en) * | 2022-04-12 | 2022-07-29 | 凯鑫森(上海)功能性薄膜产业股份有限公司 | High-shielding double-sided diffusion film and preparation method thereof |
| CN114815022B (en) * | 2022-04-12 | 2023-09-01 | 凯鑫森(上海)功能性薄膜产业股份有限公司 | High shielding double-sided diffusion film and preparation method thereof |
| CN115746370A (en) * | 2022-11-18 | 2023-03-07 | 江苏斯迪克新材料科技股份有限公司 | Matte hardened semitransparent optical film and preparation method thereof |
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