[go: up one dir, main page]

WO2018127129A1 - Film optique utilisant un polymère à points quantiques anti-oxydation, son procédé de fabrication et son utilisation - Google Patents

Film optique utilisant un polymère à points quantiques anti-oxydation, son procédé de fabrication et son utilisation Download PDF

Info

Publication number
WO2018127129A1
WO2018127129A1 PCT/CN2018/071561 CN2018071561W WO2018127129A1 WO 2018127129 A1 WO2018127129 A1 WO 2018127129A1 CN 2018071561 W CN2018071561 W CN 2018071561W WO 2018127129 A1 WO2018127129 A1 WO 2018127129A1
Authority
WO
WIPO (PCT)
Prior art keywords
quantum dot
film
polymer
pva
quantum
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.)
Ceased
Application number
PCT/CN2018/071561
Other languages
English (en)
Chinese (zh)
Inventor
肖蔓达
李沛
向振涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Polyqolor Technology Ltd
Original Assignee
Wuhan Polyqolor Technology Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan Polyqolor Technology Ltd filed Critical Wuhan Polyqolor Technology Ltd
Publication of WO2018127129A1 publication Critical patent/WO2018127129A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/10—Removing layers, or parts of layers, mechanically or chemically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/851—Wavelength conversion means
    • H10H20/8511—Wavelength conversion means characterised by their material, e.g. binder
    • H10H20/8512—Wavelength conversion materials
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/851—Wavelength conversion means
    • H10H20/8514—Wavelength conversion means characterised by their shape, e.g. plate or foil
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/851—Wavelength conversion means
    • H10H20/8515—Wavelength conversion means not being in contact with the bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/422—Luminescent, fluorescent, phosphorescent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/202—LCD, i.e. liquid crystal displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/01—Manufacture or treatment
    • H10H20/036—Manufacture or treatment of packages
    • H10H20/0361—Manufacture or treatment of packages of wavelength conversion means

Definitions

  • the present invention relates to an oxidation-resistant photoluminescence quantum dot polymer optical film comprising a photoluminescent quantum dot nanocrystal of a core-shell structure, a polymer having low oxygen permeability, and light diffusion Agent.
  • the optical film is used in the fields of luminescence and light diffusion, such as light diffusion films, and high quality fluorescent materials for illumination and display.
  • Liquid crystal displays are widely used in personal computers, televisions, monitors, mobile phones, personal digital assistants, gaming devices, electronic reading devices, digital cameras and the like.
  • Conventional LCD devices are equipped with a backlight unit that together converts the white backlight to the desired target display color.
  • U.S. Patent No. 62,159,204 describes a one-step process for the preparation of core-shell structured photoluminescent quantum dot nanocrystals which yields large quantum dots with low cost.
  • the core-shell structured photoluminescence quantum dot nanocrystals synthesized according to this method have very strong fluorescence (quantum efficiency >70%) and are well dispersed in water due to their polyhedral shape.
  • the aqueous phase quantum dots are easily oxidized in an air environment, which reduces quantum efficiency, and generally has a stable use time of less than 6 months.
  • quantum dots synthesized in organic solvents such as TOPA/TOP and phosphorus hydride are extremely sensitive to high temperatures, intense light, oxygen, humidity, and other harmful environments.
  • US 2014/011837 on quantum dot films which discloses a quantum dot film having a three-layer composite structure comprising two barrier films on the outside to prevent moisture and oxygen from penetrating into the inner layer to destroy quantum dots.
  • the modification of the surface of the quantum dot such as plating or grafting a water-repellent oxygen barrier material such as a silica shell or an alumina shell, can make these quantum dots have water resistance.
  • CN 201480005245.1 discloses a patent for the invention of a quantum dot film encapsulated with a water-oxygen barrier film.
  • an oil-soluble quantum dot is dispersed in a system containing acrylic acid, an epoxy resin, or a photocuring agent to form an acrylic resin-based quantum dot film layer. Since the transmittance of oxygen and moisture of the acrylic resin layer is high (all are greater than 0.1 g/m 2 ⁇ day), the quantum dot film obtained by this method has unstable luminescence intensity. Therefore, the invention adopts a structure in which a two-layer water-oxygen barrier film is sandwiched with a quantum dot film to improve the luminous stability of the quantum dot film.
  • the solution for solving the stability of quantum dots of the invention has the following problems: First, the solid content of the glue must be 100%, thus limiting the range of glue selection, the optional glue is basically UV curing glue; Second, the quantum dot material It is more stable in neutral or alkaline environment, but the glue is weakly acidic, so this kind of glue is not conducive to the stability of quantum dots before curing. Third, the cost of the barrier film is very high. The cost accounts for more than half of the final product of the entire quantum dot film. Therefore, the development of inexpensive raw materials and processes to prepare quantum dot films has been a hot demand in the market.
  • the inventors have conducted extensive research and experiments and found that when a low oxygen permeability polymer is used, a quantum dot film having stable performance can be obtained without using a barrier film.
  • the present invention relates to an oxidation resistant quantum dot polymer optical film comprising: two base films, a quantum dot film sandwiched between two base films, and one or two adhesive layers, An adhesive layer is disposed between the base film and the quantum dot film, wherein the quantum dot film comprises a polymer having a low oxygen permeability, a photoluminescence quantum dot nanocrystal having a core-shell structure, and A light diffusing agent is optionally present.
  • Any polymer having low oxygen permeability can be used in the present invention, including but not limited to commercial ethylene-vinyl alcohol copolymer, polyvinyl alcohol (PVA), Resin, liquid crystal polymer, polyacrylic acid (PAA), polyvinylidene chloride, hypromellose, polyamines (such as polydiallyldimethylammonium chloride) and dicyandiamide resin, flocculant, Amphoteric polymers, polyacrylamides, polyethylene oxides, and modified derivatives of the above polymers, wherein "modification” is to further reduce the oxygen permeability of the above polymers.
  • PVA polyvinyl alcohol
  • Resin liquid crystal polymer
  • PAA polyacrylic acid
  • PAA polyvinylidene chloride
  • hypromellose polyamines (such as polydiallyldimethylammonium chloride) and dicyandiamide resin
  • flocculant such as polydiallyldimethylammonium chloride
  • the photoluminescent quantum dot nanocrystals of the core-shell structure used in the present invention include quantum dots synthesized by an aqueous phase and quantum dots synthesized by a treated oil phase.
  • the mass of the photoluminescent quantum dot nanocrystal of the core-shell structure is 0.01-10% with respect to the quantum dot film.
  • the quantum dot film has a thickness of 10 to 250 ⁇ m.
  • Light diffusing agents which can be used in the present invention include, but are not limited to, silica, titania, modified organosilicon compounds and polymer colloidal particles, preferably having a particle size of from 0.5 to 20 ⁇ m.
  • the method includes:
  • the base film in the step (5) is peeled off, and the two base films are respectively covered on the opposite faces of the peeled quantum dot film by the adhesive layer.
  • the method comprises:
  • the base film in the step (6) is peeled off, and the two base films are respectively covered on the opposite faces of the peeled quantum dot film by the adhesive layer.
  • the anti-oxidation photoluminescence polymer optical film of the invention comprises a light-diffusing agent and a core-shell structure photoluminescent quantum dot nano material, has high luminescence quantum efficiency and high optical performance, and can be applied to fluorescence and light scattering.
  • a light diffusing film for example, as a light diffusing film, a high-quality fluorescent material for illuminating and display, and a backlight module that can be stacked in a liquid crystal device
  • the invention can be applied to a liquid crystal device of a blue light source to be wider.
  • the method according to the invention has the characteristics of economy, energy saving, environmental protection, etc., and is easy to realize industrial production and mass-produce products.
  • FIG. 1(a) and 1(b) are schematic views showing the structure of a photoluminescence PVA quantum dot polymer optical film comprising a 2-layer PET base film as a support film according to the present invention, respectively.
  • Example 2 is a tensile curve showing a four-layer structure PVA quantum dot polymer optical film using a PET base film as a support film in Example 1 of the present invention.
  • Figure 3 is a graph showing the tensile curves of a single layer PVA quantum dot polymer optical film of Comparative Example 2 of the present invention.
  • the oxygen permeability data of some common polymers are listed in Table 1 below, wherein it can be seen that the oxygen permeability of polyvinyl alcohol (PVA) is relatively low, Therefore, polyvinyl alcohol is preferably used in the embodiment of the present invention.
  • PVA polyvinyl alcohol
  • a polymer having an oxygen permeability of 1.0 cc / 100 in 2 ⁇ day or less preferably a polymer having an oxygen permeability of 0.5 cc / 100 in 2 ⁇ day or less may be used.
  • Polyvinyl alcohol is an important polymer material which is obtained by alcoholysis of polyvinyl acetate. Polyvinyl alcohol molecules have a strict regular linear structure and contain a large amount of hydroxyl groups in the molecule. Therefore, polyvinyl alcohol has great hydrophilicity and is a water-soluble polymer material. Due to the presence of hydroxyl groups, polyvinyl alcohol easily forms a large number of intramolecular and intermolecular hydrogen bonds. Therefore, polyvinyl alcohol molecules have high crystallinity, chemical stability, thermal stability, light transmittance, and good gloss and high. Mechanical strength.
  • the hydroxyl group of polyvinyl alcohol determines its hydrophilic property, and in order to modify polyvinyl alcohol into a hydrophobic polymer, it is necessary to start with a hydroxyl group (-OH) after alcoholysis.
  • the chemical structure of the polyvinyl alcohol macromolecule can be changed by copolymerization modification (such as lactonization modification) and post-modification (such as acetalization reaction, esterification reaction, etc.) to obtain a hydrophobic polyvinyl alcohol polymer material. .
  • PVA has been widely used in the fields of display, food, medicine, etc.
  • PVA is used to produce polarizers for LCD devices (see US Pat. No. 8,303,867, US20020001700), which proves that it has excellent optical properties.
  • PVA films have been widely used in packaging and other industries in recent years due to their good gas barrier properties, especially for oxygen barrier properties (see US4731266).
  • Industrial methods for producing PVA films are typically cast into a film on a conveyor belt or in a flat surface. More specifically, the PVA is cast in the form of an aqueous solution onto a conveyor belt or a flat surface, and then heated and dried to form a film.
  • a photoluminescent quantum dot nanomaterial having a core-shell structure is compounded with PVA, and the prepared quantum dot composite film material has high oxygen barrier properties and optical properties.
  • PVA is present in an aqueous phase system
  • the equivalent sub-point is a quantum dot synthesized by the aqueous phase, which can obtain good dispersion in the PVA system, but for the quantum phase of the oil phase synthesis, in order to make it uniform Dispersed in the PVA system, it needs to be processed.
  • the inventors have conducted extensive research and experiments and found that the quantum dots synthesized by the oil phase are subjected to surface chemical modification. For example, when a surfactant is added, the oil phase quantum dots can be uniformly dispersed in the aqueous phase system.
  • a quantum dot synthesized from a polycarbonate having a molecular weight of 15 000 to 20 000 and an oil phase is dissolved in a dichloromethane solvent, and after mixing uniformly, the dichloromethane solvent is evaporated to obtain a solid polycarbonate.
  • a mixture of quantum dots and a ball mill pulverized to obtain a polycarbonate-coated quantum dot powder is evaporated to obtain a polycarbonate-coated quantum dot powder.
  • the quantum dot powder dispersed in the aqueous phase system prevents moisture and oxygen from penetrating into the inner layer to destroy the quantum dots.
  • an organic solvent such as DMF.
  • a quantum dot synthesized from a polycarbonate having a molecular weight of 15 000 to 20 000 and an oil phase is dissolved in a dichloromethane solvent, and uniformly mixed, and then ethyl acetate is added thereto, at this time, polycarbonate and quantum dots.
  • the mixture due to its poor solubility, quickly settles into a powdery polycarbonate-coated quantum dot solid, volatilizing the dichloromethane and ethyl acetate solvent to obtain a solid polycarbonate and quantum dot mixture powder.
  • the polymer-coated quantum dots prevent moisture and oxygen from penetrating into the inner layer to destroy the quantum dots.
  • the same purpose can be achieved by using other organic solvents having poor solubility such as DMF or ethanol.
  • the stability of the oil phase quantum dots can also be improved by adding an auxiliary agent to the quantum dots synthesized in the oil phase.
  • the auxiliary agent is a substance added to increase the oxidation resistance or stability of the quantum dots.
  • an antioxidant, an oxygen barrier material, and the like and specific examples thereof include, but are not limited to, polyethylene oxide (PEO), sodium benzoate, glutaraldehyde, and the like.
  • the method for dispersing a core-shell structured photoluminescent quantum dot nanocrystal and a light diffusing agent in an aqueous PVA solution comprises first using a light diffusing agent and a PVA aqueous solution (or a PVA dimethyl sulfoxide solution). Stirring on a high-speed disperser, and then adding the photoluminescent quantum dot nanocrystals and auxiliaries of the core-shell structure according to the formulation ratio, and dispersing on a high-speed disperser.
  • the light diffusing agent is a microsphere product developed by means of polymer polymerization technology through crosslinking, grafting functional groups, etc., and is widely used in the lighting industry, especially in the field of LED lighting. Mainly by adding inorganic or organic diffusion particles with different refractive indices in transparent plastic base materials, including inorganic particles such as SiO 2 , TiO 2 , CaCO 3 , BaSO 4 and glass beads, and polymethyl methacrylate and polyphenylene.
  • Organic polymer particles such as ethylene and silicone resin can achieve the purpose of improving the haze of the material, and convert the point and line light source into a line and a surface light source, that is, while covering the glare source, the entire resin can be made softer and more beautiful. Elegant light, opaque and comfortable.
  • Another object of the present invention to employ a light diffusing agent is to increase the path of light propagation to increase the absorption of light by quantum dots.
  • the invention relates to a method for preparing a quantum dot polymer optical film, in particular to a method for casting film comprising a quantum dot nanocrystal and a polymer having a mass percentage (nanocrystal/polymer) of 0.01-10%.
  • the solution is prepared together, then cast and dried to form a film, and the thickness of the quantum dot film after drying is between 10 and 250 ⁇ m.
  • the present inventors have confirmed that this method can produce a polymer optical film having stable optical properties and high photoluminescence quantum efficiency.
  • the film forming process according to the present invention includes a coating film and a dry film forming process.
  • the film coating method is to use a film applicator on a PET base film, the PVA quantum dot mixed solution is scraped into a uniform thickness wet film, and dried in an oven to obtain a PVA/PET double layer structure film, wherein
  • the PVA quantum dot layer has a thickness between 10 and 250 ⁇ m. Specifically, it is first dried in a forced air oven at 60-80 ° C for 3-10 min, and then dried in a vacuum drying oven at 30-50 ° C for 3-12 h to completely remove water. In the vacuum drying process, potassium hydroxide, calcium oxide or the like is used as a water absorbing agent.
  • the film forming method can prepare a quantum dot film with uniform appearance and uniform thickness, and at the same time can ensure that the quantum dots are less attenuated during the preparation process.
  • the PVA quantum dot mixed solution can be coated on the PET base film by a comma scraper, a die, a dimple, etc., and then passed through a drying unit at a temperature lower than 80 ° C, and the solvent is completely evaporated and dried.
  • the low oxygen permeability single-layer quantum dot film prepared by the method provided by the present invention has low mechanical strength due to the addition of a plasticizer auxiliary such as glycerin, phthalate or the like at a low glass transition temperature.
  • a plasticizer auxiliary such as glycerin, phthalate or the like
  • the polyvinyl alcohol single-layer quantum dot optical film which has not been modified by water resistance may be damaged by the moisture vapor erosion under high temperature and high humidity conditions.
  • the present invention improves its mechanical strength and product appearance by providing a supporting two-layer base film on the opposite side of a single-layer quantum dot film.
  • a polymer optical film having a 4-layer structure can be obtained.
  • the preparation method comprises: (1) casting a water-soluble quantum dot casting solution liquid on a surface-modified base film; 2) drying the wet film to prepare a film having a two-layer structure comprising a first base film such as PET, PMMA, PC, etc. and a PVA quantum dot optical film; (3) another surface-modified support film such as PET, PMMA, PC are coated with a glue layer; (4) The two double-layer structure films are composited to form a 4-layer composite film, as shown in Fig. 1(a). The resulting 4-layer composite film has a thickness of 50 to 350 ⁇ m.
  • the present invention confirms that this method can produce a 4-layer structure composite quantum dot polymer optical film having high photoluminescence quantum efficiency and light diffusion properties.
  • the glue for bonding the PVA quantum layer and the second base film in the method used may be a UV curing glue, a heat curing glue or the like.
  • the base film can be covered on the PVA/base film composite film, and the PVA quantum dot layer is sandwiched in the middle.
  • the UV light curing glue is squeezed in the middle with a dropper, and the glue is flattened and evenly distributed by the pressure roller.
  • the composite film prepared above is subjected to ultraviolet exposure treatment to cure the UV light curing glue to obtain a four-layer composite structure.
  • UV glue can be applied to the second base film, and then the PET/PVA quantum dot layer is bonded and UV cured to obtain a four-layer composite structure.
  • the UV light curing glue comprises a mixture of a methacrylate monomer and a photoinitiator, wherein the photoinitiator generates a radical under the excitation of ultraviolet light and induces radical polymerization of the acrylate monomer.
  • the polymer is formed and the PVA and PET are bonded together.
  • the light wave energy used in the ultraviolet exposure treatment is 8-3000 mj/cm 2 , and the exposure processing time varies depending on the exposure energy, and the range is 0.1-180 s.
  • a polymer optical film having a 5-layer structure in which a structure as shown in Fig. 1(b) is used to support a PVA film and to isolate external water vapor can be obtained.
  • the preparation method comprises: (1) casting a PVA water-soluble quantum dot casting solution liquid on an easily peelable substrate; (2) drying the wet film and peeling off the substrate to obtain a single-layer PVA quantum dot optical film; 3) Applying a layered surface of the support film such as PET, PMMA, PC to the PVA quantum dot optical film; (4) supporting the surface after another surface modification such as PET, PMMA, PC
  • the adhesive layer is coated with the other side of the composite PVA quantum dot optical film to form a composite quantum dot film having a 5-layer structure as shown in Fig. 1(b).
  • the 5-layer composite film produced has a thickness of 50-350 ⁇ m.
  • the glue used to bond the PVA quantum dot layer and the two base film in the method can be UV curing glue,
  • Example 1 Polymer optical film comprising a combination of aqueous phase synthesis quantum dots + high crystallinity PVA
  • the casting solution was deaerated in a vacuum for 12 h, then cast on a 75 ⁇ m PET base film with a surface adhesion of more than 40 dynes, and then dried in a 70 ° C blast oven for 10 min, followed by a vacuum oven at 50 ° C. Drying for 3 hours gave a dry film (PVA/PET composite structural film).
  • the obtained composite film had a full line transmittance of 85% and an initial photoluminescence quantum efficiency of 70%.
  • the sample was placed at 85 ° C, 85% RH for 100 h, the total light transmittance was 85%, the haze was 98%, and the photoluminescence quantum efficiency was 68.5%.
  • the obtained four-layer composite film was subjected to tensile test using a universal stretching machine (Instron tester HY-30080), and the obtained tensile curve was as shown in Fig. 2, and the yield strength was 65 MPa.
  • Comparative Example 1 Polymer optical film comprising a PVA film (excluding quantum dots) compounded with a light diffusing agent
  • the obtained composite film had a light transmittance of 85%, a haze of 80%, and a photoluminescence quantum efficiency of 0%.
  • the sample was placed at 85 ° C, 85% RH for 100 h, the total light transmittance was 85%, the haze was 80%, and the photoluminescence quantum efficiency was 0%.
  • Example 1 Compared with Comparative Example 1, the haze of the polymer optical film obtained in Example 1 was increased by 18% and the haze was 98%, indicating that almost 100% of the light transmitted from the polymer optical film was scattered, and the most The main reason is that the quantum dots absorb the light of the light source and then uniformly diverge to the surroundings, and the quantum dots act as a point source.
  • the PET base film with a surface tension of less than 25 dynes is used, and after the PVA/PET composite film is obtained, the PET base film is peeled off to obtain a quantum of only the PVA quantum dot layer. Point film.
  • the tensile test was carried out using a universal stretching machine (Instron tester HY-30080), and the obtained tensile curve is shown in Fig. 3, and the yield strength was 8 MPa.
  • the initial photoluminescence quantum efficiency of the film was 70%.
  • the sample was placed at 85 ° C, 85% RH for 100 h, and the appearance of the sample was impaired, and the photoluminescence quantum efficiency was 60%.
  • Comparative Example 2 Compared with Comparative Example 2, the strength of the composite film of the four-layer structure of Example 1 was increased by about 7 times, and the single-layer PVA film of Comparative Example 2 was very soft, which was disadvantageous for use as an optical film in a module, but was implemented.
  • the four-layer composite structure in Example 1 can greatly increase the strength of the optical film (refer to Figs. 2 and 3) and is convenient to use.
  • Comparative Example 2 has no water-insoluble PET base film protection on both sides of the PVA film, so the water vapor is eroded at 85% relative humidity. The appearance of the film was impaired, but the composite film of the four-layer structure was not damaged in appearance under the conditions.
  • the quantum dot film of Comparative Example 2 was attenuated by 8.5 percentage points after 100 h at 85% RH.
  • Example 2 Polymer optical film comprising a combination of aqueous phase synthesis quantum dots + low crystallinity PVA
  • the obtained composite film had a light transmittance of 85%, a haze of 98%, and an initial photoluminescence quantum efficiency of 70%.
  • the sample was placed at 85 ° C, 85% RH for 100 h, the total light transmittance was 85%, the haze was 98%, and the photoluminescence quantum efficiency was 58%.
  • Example 3 Polymer optical film comprising an oil phase synthetic quantum dot powder + PVA combination
  • a powder of an oil phase synthetic quantum dot is prepared, and 10 parts by mass of a polycarbonate material having an molecular weight of 15000 to 20,000 and an oil phase synthesized with a quantum dot material (1.0 parts by mass of a green quantum dot, a peak position of 520 nm, and 0.25 parts by mass of a red quantum dot) , peak position 625nm, provided by Tianjin Nanocomy) dissolved in methylene chloride solvent, mixed uniformly and then volatilized solvent to obtain a solid polycarbonate and quantum dot mixture, after ball milling and pulverization to obtain polymer coated oil phase synthesis Quantum dot powder.
  • a quantum dot material 1.0 parts by mass of a green quantum dot, a peak position of 520 nm, and 0.25 parts by mass of a red quantum dot
  • peak position 625nm provided by Tianjin Nanocomy
  • a PVA polymer PVA having a degree of alcoholysis of 98.0 mol% and a degree of polymerization of 2,700
  • 10 parts by mass of glycerin were dissolved in water, and it took 2 hours to dissolve at a temperature of 90 °C.
  • 7.5 parts by mass of silicone particles having a particle diameter of 10 ⁇ m were dispersed in a PVA solution by a disperser at a dispersion speed of 1200 rpm.
  • the oil phase quantum dot powder prepared above was dispersed in a PVA solution to form a casting solution at a dispersion speed of 1200 rpm.
  • the casting solution contains 75% by mass of volatile water.
  • the casting solution was degassed in a vacuum for 12 h, then cast on a surface-modified PET base film having a thickness of 75 ⁇ m, dried in a 70 ° C blast oven for 10 min, and dried in a vacuum oven at 50 ° C for 3 h. Dry film. Then, another PET base film having a thickness of 75 ⁇ m which was not easily peeled off after surface modification was overlaid on the PVA/PET film to sandwich the PVA quantum dot layer. Then, the UV light curing glue is squeezed in the middle with a dropper, the glue is flattened by a pressure roller and evenly distributed between the PVA and the PET base film, and the composite film prepared above is subjected to ultraviolet exposure treatment. The gel was cured by exposure to UV light having an energy of 8 W/cm 2 for 180 s to obtain a polymer optical film of a four-layer composite structure in which the thickness of the quantum dot layer was 40 ⁇ m.
  • the initial photoluminescence quantum efficiency of the obtained polymer optical film was 72%.
  • the sample was placed at 85 ° C, 85% RH for 100 h, and the photoluminescence quantum efficiency was reduced to 65%.
  • Example 4 Polymer optical film comprising an oil phase synthetic quantum dot powder + PVA combination
  • the initial photoluminescence quantum efficiency of the obtained polymer optical film was 72%.
  • the sample was placed at 85 ° C, 85% RH for 100 h, and the photoluminescence quantum efficiency was reduced to 65%.
  • Example 4 The photoluminescence quantum efficiency of the polymer optical film obtained in Example 4 and Example 3 was the same, indicating that the above two methods for treating quantum dots synthesized by the oil phase did not have much influence on the performance of the quantum dots.
  • a UV glue quantum dot film with a quantum dot layer thickness of 40 ⁇ m was prepared.
  • This method uses quantum dot nanocrystals synthesized by an oil phase, and the acrylic resin used is an amorphous polymer material.
  • the dispersion machine (Dragon Lab OS20-S) rotates at 1800 rpm, the turntable diameter is 30 mm, and the dispersion time is 10 min.
  • the photoluminescence quantum efficiency of the obtained polymer optical film was 68%.
  • the polymer optical film was allowed to stand at a temperature of 85 ° C and 85% RH for 100 h, and the photoluminescence quantum efficiency was 50%.
  • the quantum luminescence efficiency of the polymer optical film is higher than that of Comparative Example 3.
  • the main reason is that the quantum luminescence efficiency of quantum dots is proportional to the refractive index of the dispersion medium.
  • the refractive index of PVA is higher than that of acrylic resin, resulting in higher luminous efficiency of quantum dots finally dispersed in the PVA film.
  • the quantum dot luminescence efficiency of the quantum dot film of Example 1 was only attenuated by 1.5% over 100 h, Example 2 was attenuated by 12%, and Comparative Example 3 quantum dot film The quantum dot luminescence efficiency is attenuated by 18%. It shows that PVA polymer material with high crystallinity has very good oxygen barrier property; and PVA with low crystallinity also has certain oxygen barrier property, which leads to delay of quantum dot luminous efficiency decay.
  • the initial photoluminescence quantum efficiency of the polymer optical film of Example 3 is 4 percentage points higher, which is mainly because the quantum luminous efficiency of the quantum dot is proportional to the refractive index of the dispersion medium, and the refractive index of the PVA The rate is higher than that of the acrylic resin, resulting in a higher luminous efficiency of the quantum dots finally dispersed in the PVA film.
  • the quantum luminescence efficiency of Example 3 is more stable, and the sample is only attenuated by 7 percentage points at 85 ° C and 85% RH for 100 h, while the quantum luminescence efficiency of Comparative Example 3 is attenuated by 18 percentage points, further demonstrating that the crystalline polymer can Improve the stability of quantum dots.
  • Example 5 Polymer optical film comprising oil phase synthesis quantum dot + polyoxyethylene (PEO) auxiliary + PVA
  • PVA polymer Extrapolymer-based polymer (Mowiol 24-88 alcoholysis degree 88.0 mol%, polymerization degree 3200, supplied by Sigma-Aldrich), 20 parts by mass of PEO (1,000,000 molecular weight, supplied by BASF) were dissolved in water at a temperature of 90 ° C. It takes 2.5 hours to dissolve. Then, 7.50 parts by mass of silicone particles having a particle diameter of 10 ⁇ m (elected by EL202A, supplied by a singular material) were dispersed in the above PVA solution by a disperser at a dispersion speed of 1200 rpm.
  • PVA polymer Extrapolysis degree 88.0 mol%, polymerization degree 3200, supplied by Sigma-Aldrich
  • PEO 1,000,000 molecular weight
  • the obtained polymer optical film had a full line transmittance of 88%, a haze of 98%, and an initial photoluminescence quantum efficiency of 77%.
  • the sample was placed at 85 ° C, 85% RH for 100 h, and the photoluminescence quantum efficiency was 72.6%.
  • the initial quantum dot efficiency of the polymer optical film of Example 5 is 9 percentage points higher, which is mainly because the quantum luminous efficiency of the quantum dot is proportional to the refractive index of the dispersion medium, and the refractive index of the PVA is higher.
  • the high acrylic resin leads to higher luminous efficiency of quantum dots finally dispersed in the PVA film.
  • PEO can be bonded to PVA through hydrogen bonding and embedded in the amorphous segment of PVA to form a denser structure. Increased barrier properties.
  • the quantum dot luminous efficiency of the polymer optical film of Example 5 was attenuated by 4.4%, while the quantum dot luminous efficiency of the polymeric optical film of Comparative Example 3 was attenuated by 18%. It proves that PVA polymer material blended with PEO solution has better anti-attenuation performance.
  • Example 6 Polymer optical film comprising oil phase synthesis quantum dot + glutaraldehyde adjuvant + PVA
  • red core-shell structured photoluminescent quantum dot nanocrystals and 1.0 part by mass of green core-shell structured photoluminescent quantum dot nanocrystals are dispersed into the above PVA solution to form a casting solution.
  • the stirring speed was 800 rpm.
  • a glutaraldehyde hydrochloride mixed solution (containing 5 parts by mass of a 10% aqueous solution of glutaraldehyde and 0.5 part by mass of a 1.0 mol/L aqueous hydrochloric acid solution) was dispersed in a casting solution at a stirring speed of 500 rpm.
  • the casting solution contains 75% by mass of volatile water.
  • the casting solution was degassed in a vacuum for 12 h, then cast on a surface-modified 75 ⁇ m thick PET base film, dried in a 70 ° C blast oven for 10 min, and then dried in a vacuum oven at 50 ° C for 3 h.
  • a dry film (PVA/PET composite structural film) was obtained.
  • the obtained composite film had a light transmittance of 88%, a haze of 98%, and an initial photoluminescence quantum efficiency of 75%.
  • the sample was placed at 85 ° C, 85% RH for 100 h, and the photoluminescence quantum efficiency was 69%.
  • the initial quantum dot efficiency of the polymer optical film of Example 6 is 7 percentage points higher, which is mainly because the quantum luminous efficiency of the quantum dot is proportional to the refractive index of the dispersion medium, and the refractive index of the PVA is higher.
  • the high acrylic resin leads to higher luminous efficiency of the quantum dots finally dispersed in the PVA film.
  • glutaraldehyde reacts with PVA under the catalysis of hydrochloric acid to form a moderate cross-linking structure, making the PVA water resistant. Sexuality has been improved, and it is difficult for water vapor to penetrate into the interior of PVA to affect quantum dots.
  • Example 7 Polymer optical film comprising an oil phase synthetic quantum dot + high crystallinity PVA combination
  • the casting solution was deaerated in a vacuum for 12 h, then cast on a PET base film having a surface adhesion of more than 40 dynes having a thickness of 75 ⁇ m, dried in a 70 ° C blast oven for 10 min, and then vacuum dried at 50 ° C. Drying in a box for 3 hours gave a dry film (PVA/PET composite structural film).
  • the obtained composite film had a full line transmittance of 85% and an initial photoluminescence quantum efficiency of 70%.
  • the sample was placed at 85 ° C, 85% RH for 100 h, the total light transmittance was 85%, the haze was 98%, and the photoluminescence quantum efficiency was 68.5%.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Luminescent Compositions (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un film optique utilisant un polymère à points quantiques anti-oxydation, un procédé de fabrication de celui-ci et une application de celui-ci dans l'émission de lumière et la diffusion de lumière, par exemple des applications dans un film de diffusion de lumière et un matériau fluorescent de haute qualité utilisé dans l'éclairage et l'affichage. Le film de polymère optique comprend : un nano-cristal à points quantiques de photoluminescence comprenant une structure noyau et coquille ; et un polymère ayant une faible perméabilité à l'oxygène. En ajoutant un agent de diffusion de lumière, le film de polymère optique peut obtenir un effet d'affichage amélioré.
PCT/CN2018/071561 2017-01-05 2018-01-05 Film optique utilisant un polymère à points quantiques anti-oxydation, son procédé de fabrication et son utilisation Ceased WO2018127129A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710008657.6 2017-01-05
CN201710008657.6A CN107650452B (zh) 2017-01-05 2017-01-05 一种抗氧化的量子点聚合物光学膜及其制备方法和用途

Publications (1)

Publication Number Publication Date
WO2018127129A1 true WO2018127129A1 (fr) 2018-07-12

Family

ID=61126762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/071561 Ceased WO2018127129A1 (fr) 2017-01-05 2018-01-05 Film optique utilisant un polymère à points quantiques anti-oxydation, son procédé de fabrication et son utilisation

Country Status (2)

Country Link
CN (1) CN107650452B (fr)
WO (1) WO2018127129A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111690203A (zh) * 2019-03-14 2020-09-22 苏州星烁纳米科技有限公司 量子点-聚合物复合体的制备方法
CN114015232A (zh) * 2021-11-17 2022-02-08 桂林电器科学研究院有限公司 用于制备聚酰亚胺反射膜的聚酰胺酸组合物、其制备方法和聚酰亚胺反射膜及其制备方法
WO2022179456A1 (fr) * 2021-02-25 2022-09-01 昆山博益鑫成高分子材料有限公司 Procédé de préparation et application d'une microsphère polymère à structure cœur-enveloppe pour points quantiques de pérovskite
EP4066024A4 (fr) * 2019-11-25 2023-11-15 IPC Works Limited Filtre de lumière et son procédé

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108481825A (zh) * 2018-05-22 2018-09-04 惠州市创亿达新材料有限公司 量子点光学功能板及其制备方法
CN110739385B (zh) * 2018-07-20 2021-07-20 纳晶科技股份有限公司 发光器件及其制作方法
CN109638169B (zh) * 2018-10-29 2021-02-23 纳晶科技股份有限公司 有机阻隔膜、有机阻隔膜的制备方法以及量子点器件
CN111349428B (zh) * 2018-12-21 2023-02-28 苏州星烁纳米科技有限公司 荧光纳米材料-聚合物复合体、波长转换元件的制备方法
CN109694518B (zh) * 2018-12-27 2022-01-28 四川东方绝缘材料股份有限公司 一种双键聚合物量子点膜及其制备方法
CN110129027B (zh) * 2019-05-31 2022-06-07 苏州星烁纳米科技有限公司 量子点复合膜及其制备方法
CN112080029A (zh) * 2019-06-13 2020-12-15 苏州星烁纳米科技有限公司 量子点膜及其制备方法
CN110311055A (zh) * 2019-07-26 2019-10-08 马鞍山微晶光电材料有限公司 一种复合发光基片及其制备方法和应用
CN111040756A (zh) * 2019-12-16 2020-04-21 深圳扑浪创新科技有限公司 一种光学膜及制作方法
CN113267922A (zh) * 2020-02-17 2021-08-17 广东普加福光电科技有限公司 一种量子点彩色滤光片及其制备方法
CN113969171A (zh) * 2020-07-24 2022-01-25 Tcl科技集团股份有限公司 掺杂的MXene量子点的制备方法以及光学薄膜和QLED
CN115197517B (zh) * 2021-04-13 2024-09-24 致晶科技（北京）有限公司 一种钙钛矿量子点复合光扩散剂及其制备方法和应用
KR102805924B1 (ko) * 2021-04-22 2025-05-09 유브라이트 옵트로닉스 코포레이션 퀀텀닷 광학 필름 및 그의 제조 방법
KR20220146326A (ko) * 2021-04-23 2022-11-01 유브라이트 옵트로닉스 코포레이션 퀀텀닷 광학 필름 및 그의 제조방법
CN115466481B (zh) * 2021-06-11 2025-05-23 纳晶科技股份有限公司 复合材料及其制备方法、光转换器件
US12411271B2 (en) * 2021-08-09 2025-09-09 Ubright Optronics Corporation Composite quantum dot optical film comprising first and second optical prism films
CN114474940B (zh) * 2022-01-30 2023-08-25 东南大学 一种高稳定自阻隔量子点光学膜及其制备方法和应用
CN115340861A (zh) * 2022-08-25 2022-11-15 深圳微纳光晶科技有限公司 微纳光晶体材料、其制备方法及含有其的发光器件
CN115347094A (zh) * 2022-08-25 2022-11-15 深圳微纳光晶科技有限公司 半导体发光材料芯片及其制备方法
CN115284513B (zh) * 2022-10-09 2023-01-03 广域兴智能(南通)科技有限公司 一种简化阻隔膜的光转换膜

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016075949A1 (fr) * 2014-11-14 2016-05-19 富士フイルム株式会社 Élément de conversion de longueur d'onde, unité de rétroéclairage le comprenant et appareil d'affichage à cristaux liquides
WO2016092805A1 (fr) * 2014-12-10 2016-06-16 富士フイルム株式会社 Élément de conversion de longueur d'onde, unité de rétroéclairage, dispositif d'affichage à cristaux liquides et procédé de fabrication d'un élément de conversion de longueur d'onde
CN105829103A (zh) * 2013-12-20 2016-08-03 3M创新有限公司 边缘侵入得到改善的量子点制品
WO2016125502A1 (fr) * 2015-02-06 2016-08-11 富士フイルム株式会社 Composition polymérisable, élément de conversion de longueur d'onde, unité de rétro-éclairage et dispositif d'affichage à cristaux liquides
CN105870305A (zh) * 2016-04-27 2016-08-17 纳晶科技股份有限公司 量子点膜与其制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10513656B2 (en) * 2014-09-08 2019-12-24 Samsung Electronics Co., Ltd. Quantum dot-containing materials and products including same
CN104963022B (zh) * 2015-07-07 2017-06-27 中国科学院重庆绿色智能技术研究院 一种高强度高模量聚乙烯醇‑石墨烯量子点复合纤维的制备方法及产物
CN105929635A (zh) * 2016-04-29 2016-09-07 京东方科技集团股份有限公司 量子点光刻胶及其制备方法、显示基板和显示装置
CN105754603A (zh) * 2016-05-11 2016-07-13 青岛海信电器股份有限公司 量子点组件及其制备方法和应用
CN106190101B (zh) * 2016-07-13 2018-07-17 上海交通大学 具有微结构表面的自支持薄膜及其制备方法
CN106292073A (zh) * 2016-10-09 2017-01-04 纷响新材料科技（上海）有限公司 一种长寿命量子点膜及其制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105829103A (zh) * 2013-12-20 2016-08-03 3M创新有限公司 边缘侵入得到改善的量子点制品
WO2016075949A1 (fr) * 2014-11-14 2016-05-19 富士フイルム株式会社 Élément de conversion de longueur d'onde, unité de rétroéclairage le comprenant et appareil d'affichage à cristaux liquides
WO2016092805A1 (fr) * 2014-12-10 2016-06-16 富士フイルム株式会社 Élément de conversion de longueur d'onde, unité de rétroéclairage, dispositif d'affichage à cristaux liquides et procédé de fabrication d'un élément de conversion de longueur d'onde
WO2016125502A1 (fr) * 2015-02-06 2016-08-11 富士フイルム株式会社 Composition polymérisable, élément de conversion de longueur d'onde, unité de rétro-éclairage et dispositif d'affichage à cristaux liquides
CN105870305A (zh) * 2016-04-27 2016-08-17 纳晶科技股份有限公司 量子点膜与其制备方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111690203A (zh) * 2019-03-14 2020-09-22 苏州星烁纳米科技有限公司 量子点-聚合物复合体的制备方法
EP4066024A4 (fr) * 2019-11-25 2023-11-15 IPC Works Limited Filtre de lumière et son procédé
WO2022179456A1 (fr) * 2021-02-25 2022-09-01 昆山博益鑫成高分子材料有限公司 Procédé de préparation et application d'une microsphère polymère à structure cœur-enveloppe pour points quantiques de pérovskite
CN114015232A (zh) * 2021-11-17 2022-02-08 桂林电器科学研究院有限公司 用于制备聚酰亚胺反射膜的聚酰胺酸组合物、其制备方法和聚酰亚胺反射膜及其制备方法
CN114015232B (zh) * 2021-11-17 2023-04-28 桂林电器科学研究院有限公司 用于制备聚酰亚胺反射膜的聚酰胺酸组合物、其制备方法和聚酰亚胺反射膜及其制备方法

Also Published As

Publication number Publication date
CN107650452B (zh) 2019-10-22
CN107650452A (zh) 2018-02-02

Similar Documents

Publication Publication Date Title
WO2018127129A1 (fr) Film optique utilisant un polymère à points quantiques anti-oxydation, son procédé de fabrication et son utilisation
JP6448782B2 (ja) 量子ドット含有組成物、波長変換部材、バックライトユニット、および液晶表示装置
CN101400492B (zh) 光学膜及其制造方法
KR102151510B1 (ko) 양자 도트 함유 조성물, 파장 변환 부재, 백라이트 유닛, 및 액정 표시 장치
CN102439103B (zh) 紫外线固化型粘合剂组合物、粘合剂层、粘合片及其制造方法
Hu et al. Optical diffusers with enhanced properties based on novel polysiloxane@ CeO 2@ PMMA fillers
CN108128004B (zh) 钙钛矿量子点光学功能板及其制备方法
JP2009120726A (ja) 屈折率調整光学部材用透明粘着剤と光学用透明粘着層及び屈折率調整光学部材用透明粘着剤の製造方法並びに光学用透明粘着層の製造方法
CN103044996A (zh) 一种无溶剂uv固化光扩散涂层材料、制备方法及其应用
JPH0516002B2 (fr)
WO2015115329A1 (fr) Film optique
KR20170037953A (ko) 유기 el 발광장치
CN118725381B (zh) 一种量子点涂布反射膜及其制备方法
CN115380229A (zh) 双面带粘合剂层的光学层叠体及光学装置
CN115398292A (zh) 光学构件、以及使用了该光学构件的背光灯单元及图像显示装置
TW575742B (en) Optical element
CN112771413B (zh) 双面带粘合剂层的光学层叠体
TWI713658B (zh) 照明裝置
CN103059323A (zh) 一种高透明紫外阻隔仿陶瓷纳米复合膜材料的制备方法
KR100989076B1 (ko) 가교제가 함유된 구형 실리카 비드 광확산제 및 그것의제조방법
CN114137644B (zh) 一种丙烯酸酯发泡反射片、其制备方法及背光模组
CN107797339A (zh) 一种具有内增光程的量子点薄膜
CN113861475A (zh) 光学显示用聚酯薄膜及其制备方法
TWI388603B (zh) 聚甲基丙烯酸甲酯粒子披覆二氧化矽的製備方法
JP2008308584A (ja) 無機酸化物透明分散液と透明複合体およびその製造方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18735924

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18735924

Country of ref document: EP

Kind code of ref document: A1