WO2016126143A1 - 광전환 필름 및 이를 포함하는 광전환 소자 및 디스플레이 장치 - Google Patents
광전환 필름 및 이를 포함하는 광전환 소자 및 디스플레이 장치 Download PDFInfo
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- WO2016126143A1 WO2016126143A1 PCT/KR2016/001321 KR2016001321W WO2016126143A1 WO 2016126143 A1 WO2016126143 A1 WO 2016126143A1 KR 2016001321 W KR2016001321 W KR 2016001321W WO 2016126143 A1 WO2016126143 A1 WO 2016126143A1
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- light
- light conversion
- film
- conversion film
- polymer
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
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- H—ELECTRICITY
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- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
Definitions
- the present invention relates to a light conversion film and a light conversion element comprising the same.
- a phosphor is a light emitting material that absorbs energy in the form of light or electricity from the outside and emits light having a unique wavelength, and may be used as an inorganic phosphor, an organic fluorescent dye, or a nanocrystalline phosphor according to a component and a light emitting device constituting the phosphor. Can be distinguished.
- the phosphor absorbs a part of a specific wavelength of light from the light source and converts the light into a light having a longer wavelength in the visible range, and emits light.
- the brightness, color purity, and color reproducibility of the light emitted according to the light emission characteristics of the phosphor are emitted. It can greatly improve.
- the inorganic phosphor is composed of a matrix of sulfides, oxides, nitrides, and activator ions, and has excellent physical and chemical stability and can reproduce high color purity, so that it can be applied to high quality display devices, but the phosphor is very expensive and its luminous efficiency is low.
- Nanocrystalline phosphors composed of group II-IV or III-V semiconductor particles of several nanometers in size have different fluorescence wavelengths depending on the size of the particles, unlike organic fluorescent dyes. By adjusting the size, the visible light region of the desired wavelength can be expressed.
- the nanocrystalline phosphor since the nanocrystalline phosphor has a light absorption coefficient of 100 to 1000 times higher and a higher quantum efficiency than a general organic dye, it generates very strong fluorescence, and especially since only the transition from the bottom vibration state of the conduction band to the bottom vibration state of the valence band is observed. The wavelength shows almost monochromatic light. However, due to high raw material costs, it is difficult to secure price competitiveness, and in particular, it is vulnerable to heat or oxygen.
- organic fluorescent dyes have a variety of emission spectrum, excellent quantum efficiency, and especially low cost compared to inorganic phosphors, so it is worth using as an optical conversion device.
- organic fluorescent dyes have a variety of emission spectrum, excellent quantum efficiency, and especially low cost compared to inorganic phosphors, so it is worth using as an optical conversion device.
- a dot / adhesive on the light conversion film containing an organic fluorescent dye and laminating a barrier film there is a problem such as the optical properties of the film is reduced due to the dot / adhesive material.
- Exemplary embodiments of the present invention can greatly improve heat / moisture resistance, which enables adhesion with a barrier film due to the adhesive property of the film without using a dot / adhesive agent, and thus the optical properties of the film are stably maintained even at high temperature and high humidity. It provides an optical switching film and an optical switching device comprising the same.
- An exemplary embodiment of the present invention provides a light conversion film in which at least one organic fluorescent dye is dispersed in a polymer medium including at least one ionic polymer.
- the polymer medium may further include a nonionic polymer in addition to the ionic polymer.
- a nonionic polymer in addition to the ionic polymer.
- an ionic polymer, or an ionic polymer and a nonionic polymer may be referred to as a binder resin.
- the binder resin a photocurable resin, a thermosetting resin, a thermoplastic resin, or the like may be used.
- the polymer medium may include a cured product of a composition including a polymerizable monomer and a polymerizable initiator, in addition to a binder resin including an ionic polymer.
- Another embodiment of the present application is at least one light conversion film in which at least one organic fluorescent dye is dispersed in a polymer medium comprising at least one ionic polymer; And it provides a light conversion element comprising a barrier film provided on at least one surface of at least one of the light conversion film.
- the light conversion film may be prepared by applying the composition for forming the light conversion film on the barrier film.
- a barrier film may be laminated on the light conversion film.
- the light conversion film may be laminated on the light conversion film without one side of the barrier film by the adhesive agent provided by the ionic polymer, without the aid of a dot / adhesive.
- the barrier film may block the penetration of external moisture and / or oxygen, and the transmittance of at least one of moisture and oxygen may be 10 ⁇ 1 cc / m 2 / day or less.
- the barrier film may include a transparent substrate and a barrier layer formed on one surface of the transparent substrate.
- the barrier layer is not particularly limited as long as it can block moisture or oxygen, and those known in the art may be used.
- the barrier layer may include aluminum oxide or nitride that imparts moisture or oxygen barrier, and ionic metal oxide.
- the barrier layer may further include a buffer layer including at least one selected from a sol-gel, acrylic, epoxy, and urethane coating liquid composition as a buffer layer.
- the barrier film may include a protective coating layer including inorganic nanoparticles surface-modified with an organic-inorganic hybrid coating layer, an inorganic layer, and an organosilane on one or both surfaces of the substrate.
- the inorganic layer may be formed of a metal oxide or a nitride.
- the inorganic nanoparticles may be nanoparticles of alumina, silica, zinc oxide, antimony oxide, titanium oxide, zirconium oxide.
- the organic-inorganic hybrid coating layer may be formed by curing the coating composition of the sol state containing the organosilane by heat or UV, and the coating solution composition of the sol state is optionally in combination with the organosilane, appropriate additives, solvents, Polymerization catalysts and the like.
- the light conversion element may include two or more layers of the light conversion film.
- the plurality of light conversion films may convert the light incident from the light source into light having a different wavelength (color), and in this case, the light conversion element may convert the light incident from the light emitting diode (LED) light source into white light and emit the light.
- LED light emitting diode
- the light conversion film may include light diffusing particles for diffusing the light incident from the light source into the light conversion film.
- the light diffusing particles are dispersed in a polymer medium comprising at least one organic fluorescent dye and at least one ionic polymer.
- the light conversion film including the light diffusing particles is capable of fluorescence diffusion as well as light conversion, and may be referred to as a light conversion fluorescence diffusion film.
- the light diffusion particles are to increase the light conversion efficiency of the light conversion film, and may include TiO 2 and silica nanoparticles, but materials known in the art may be used alone or in combination of two or more thereof.
- the average particle diameter of the light diffusing particles may be 50 nm or less.
- the light diffusing particles may be used in 0.5 to 5% by weight based on the weight of the polymer medium.
- the light conversion element may further include a light extraction plate for extracting light emitted from the light source is converted through the light conversion film.
- a light extraction plate for extracting light emitted from the light source is converted through the light conversion film.
- an adhesive / adhesive layer formed on the other surface of the barrier film provided with the light conversion film may be laminated with one surface of the light extraction plate.
- the light extraction plate may include two or more materials having a scattering structure on the surface or inside, or having different refractive indices therein, in order to improve light extraction efficiency.
- the light extraction layer may be prepared by coating a composition including scattering particles and a binder on a transparent substrate, and drying or curing. If necessary, a planarization layer may be further provided on the coating layer including the scattering particles and the binder.
- the light extraction layer may be prepared by forming an uneven structure through microembossing on a transparent substrate. If necessary, a planarization layer may be further provided on the uneven structure.
- the adhesion of the barrier film is excellent due to the adhesion ability of the light conversion film itself, which is provided by the curing reaction of the ionic polymer, so that external moisture or oxygen penetrates into the film / fluorescent diffusion film.
- light characteristics such as light emission wavelength, full width at half maximum (FWHM), and conversion efficiency can be maintained unchanged when light incident to the light conversion film is converted to a specific wavelength (color). Increases. Therefore, when using two or more kinds of light conversion films having different emission wavelengths, for example, green and red organic fluorescent dyes, the luminance and color coordinates of the white light are reduced when the light incident from the single color LED light source is converted into white light. Can be kept constant.
- 1 to 5 illustrate the stacked structure of the light conversion element according to the embodiments of the present application.
- Figure 6 shows the structure of the light conversion device manufactured in Examples 1 and 2.
- Figure 7 shows the structure of the light conversion device manufactured in Comparative Examples 1 and 2.
- Polyethylene alcohol (PVA) having a weight average molecular weight (Mw) of 85,000 to 124,000 and a saponification degree of 87% in 20 g of water was completely dissolved at a temperature of 150 ° C, and a polyethylene having a weight average molecular weight (Mw) of 10,000 in a cooled solution.
- 4 g of imine (PEI) and epichlorohydrin were added at 15% to the weight of PEI, and then dissolved at room temperature. Then, pyranine, a green fluorescent dye, was added to the composition to obtain a high molecular weight (PVA and PEI weight). Of 0.3) was added to prepare a composition for forming a film.
- the film-forming composition made by the above method is applied on the barrier film on which the barrier layer is formed by a wire bar, and hot-dried for 5 minutes in a 100 ° C. drying oven to induce heat curing, and then a separate barrier on the film.
- the film was laminated.
- a light extraction film was laminated on one surface of the barrier film to complete a green light conversion device having a structure as shown in FIG. 6.
- the composition for forming a film was prepared by adding 0.3% of pyranine, which is a green fluorescent dye, to the composition, based on the polymer weight of the composition (the sum of the weights of PAA and PEI).
- the film-forming composition made by the above method is applied on the barrier film on which the barrier layer is formed by a wire bar, and hot-dried for 5 minutes in a 100 ° C. drying oven to induce heat curing, and then a separate barrier on the film.
- the film was laminated. Finally, a light extraction film was laminated on one surface of the barrier film to complete a green light conversion device having a structure as shown in FIG. 6.
- polyvinyl alcohol having a weight average molecular weight (Mw) of 85,000 to 124,000 and a saponification degree of 87% in 20 g of water was completely dissolved at a temperature of 150 ° C., and pyranine, a green fluorescent dye, was added to the cooled solution.
- the film composition solution was prepared by adding 0.3% by weight of PVA. It was applied on the barrier film in the same manner as in Example 1, and a separate barrier film was laminated, but adhesion was not possible.
- the film-forming composition was coated on the PET film, and then a separate PET film was applied. Then, the barrier film was laminated on both sides of the film using a barrier film with an adhesive to complete a green light conversion device having a structure as shown in FIG. 7. .
- PAA polyallylamine
- Mw weight average molecular weight
- the optical conversion elements were placed in a constant temperature and humidity chamber at a temperature of 85 ° C. and a humidity of 85%. .
- the observation result is shown in FIG.
- the light conversion film according to an exemplary embodiment of the present specification was able to obtain the desired effect on the adhesion compared to the comparative example does not contain the ionic polymer.
- the light conversion film according to the exemplary embodiment of the present application is characterized in that at least one organic fluorescent dye is dispersed in a polymer medium containing at least one ionic polymer.
- the light conversion film serves to convert light incident from a light source including light having a wavelength selected from the visible light region in the near ultraviolet ray into light having a specific wavelength (color).
- the light conversion film serves to convert the light incident from the LED light source to the white light to emit.
- the light conversion film may include an organic fluorescent dye that can implement excellent color purity and color reproducibility.
- the organic fluorescent dye may be a dye that absorbs light of a wavelength selected from the visible region in the near ultraviolet, and emits light of a wavelength different from the absorbed light.
- the organic fluorescent dye includes one or two green luminescent fluorescent dyes having a maximum emission wavelength of 500 to 550 nm and / or a red luminescent fluorescent dye each having a maximum emission wavelength of 600 to 660 nm. More than one species can be used simultaneously.
- the organic fluorescent dye is not particularly limited, but acridine-based, xanthene-based, arylmethane-based, coumarin-based, polycyclic aromatic hydrocarbon-based, polycyclic heteroaromatic-based, perylene-based, pyrrole-based, pyrene-based derivatives, and the like. desirable.
- the above materials are examples of organic fluorescent dyes, and various organic fluorescent dyes may be used.
- the full width at half maximum (FWHM) less than 60 nm and the molar extinction coefficient (molecular absorption coefficient) is 50,000 ⁇ 150,000 M -1 cm of the film in the state of an organic fluorescent dye and is 1, the organic fluorescent dye can be used, thereby limiting It is not.
- the half width means the width of the light emission peak when the light absorbed from the external light source is converted to light having a different wavelength to emit light, and is half of the maximum height of the light emitted.
- the full width at half maximum is measured in a film state.
- the half width of the luminescence peak in the film state of the organic fluorescent dye is not a solution state, but is irradiated with light in a state in which the organic fluorescent dye is prepared in the form of a film by mixing alone or with other components that do not affect measuring the half width. It means the measurement. More preferably, all fluorescent dyes dissolved in polar solvents are possible, and cationic, anionic, or organic dyes are not preferred, but cationic or anionic organic fluorescent dyes are more preferred.
- the light conversion film may be a polymer film including the organic fluorescent dye and, if necessary, at least one ionic polymer in which light diffusing particles are dispersed.
- the optical conversion film is a cured product of the organic fluorescent dye and / or light-diffusion particles, a binder resin containing at least one ionic polymer, and optionally a polymerizable monomer, a polymerizable initiator. It may include.
- binder resin a photocurable resin, a thermosetting resin, a thermoplastic resin, or the like may be used, and it is preferable to use a water-soluble polymer. Only one kind of binder resin may be used, but two or more kinds may be used together.
- the ionic polymer may be referred to as containing an ionic bond in the polymer chain.
- bonded with an ionic solute in a monomer can be called, and it can also be called electrolyte polymer.
- Ionic polymers are polymers that exhibit anionic or cationic properties when dissociated in water.
- An example of a cationic polymer is a polymer having an amine group as a functional group, and when it is dissolved in water, it combines with surrounding hydrogen to have a positive charge.
- the functional group of the anionic polymer is a carboxylic group, a phosphoric group, or a silicic group.
- ionic polymers are reticulated through the reaction between ionic polymers, as well as reactions with nonionic polymers such as polyvinyl alcohol or polyallylamine, by the addition of suitable reactive monomers or polymerization initiators. A film having a structure is formed. Through this, adhesion with the barrier film is imparted.
- the ionic polymer may contribute to the stabilization of the organic fluorescent dye.
- anionic fluorescent dyes when anionic fluorescent dyes are used, when cationic polymers are added, they form a pair of ionic bonds, and thus, the organic fluorescent dye plays a role of maintaining a stable state in which fluorescent properties can be expressed in a polymer medium. .
- the ionic polymer is not particularly limited but may be polyacrylamide, polyacrylic acid, polysilicic acid, polyphosphoric acid, Poly [3- (vinyloxy) propane-1-sulfonic acid], poly (ethylenephosphoric acid), polymaleic acid acid)), poly (2-methacryloyloxyethane-1-sulfonic acid) (poly (2-methacryloyloxyethane-1-sulfonic acid), poly (3-methacryloyloxypropane-1-sulfonic acid) (poly ( 3-methacryloyloxypropane-1-sulfonic acid), polyethyleneimine, polyamines, polyamideamine, polydiallydimethyldimethylmonium chloride, poly (4-vinylbentrimethylammonium salt) 4-vinylbenzyltrimethylammonium salt)), poly ((dimethylimino) trimethylene (dimethylimino) hexamethylenedibroma De) (poly [(dimethylimino)
- polyvinyl alcohol poly (vinylalcohol)
- polyallylamine polyallylamine
- PAA polyallylamine hydrochloride
- the composition for producing a light conversion film comprises an organic fluorescent dye, if necessary, light diffusing particles, a binder resin, a polymerizable monomer and a polymerizable initiator, the binder resin is ionic Polymers and nonionic polymers.
- the ionic polymer may be used in 50 to 1,000% by weight of the nonionic polymer.
- the polymerizable monomer may be used in an amount of 10 to 30% based on the weight of the ionic polymer.
- the organic fluorescent dye may be used in 0.001 to 5% of the weight of the nonionic polymer.
- the amount of the polymerizable initiator may be determined according to need, and may be used in an amount of 0.01 to 20% by weight based on the weight of solids of the entire composition.
- the composition for preparing a light conversion film may further include a solvent, if necessary, for example, water may be used as the solvent when the binder resin containing the ionic polymer is water-soluble.
- the composition for preparing a light conversion film is preferably used by dissolving in a solvent such as water so that the solid content of the total solution of the composition is 10 to 40% by weight.
- the nonionic polymer such as polyvinyl alcohol (PVA) and polyallylamine (PAA) may be a main material for forming a composition for forming a light conversion film, and the content of the remaining components is the polyvinyl alcohol or polyallylamine weight. Can be measured on the basis of.
- the polyvinyl alcohol is polyvinyl alcohol having a weight average molecular weight (Mw) of 85,000 to 146,000, preferably hydrolyzed to 96% or less.
- the polyallylamine preferably has a weight average molecular weight (Mw) of 58,000 to 900,000.
- the ionic polymer is an important component that provides adhesion to the light conversion film according to the embodiments of the present invention together with the nonionic polymer by causing a crosslinking reaction.
- the ionic polymer preferably has a weight average molecular weight (Mw) of 1,300 ⁇ 25,000.
- Mw weight average molecular weight
- the ionic polymer having such a molecular weight range is advantageous in forming a network structure between the ionic polymers to impart adhesion ability, and can also achieve the effect of stabilizing the organic fluorescent dye adsorbed on the ionic group. If the molecular weight is too large, there is a problem in producing the film.
- the ionic polymer is preferably contained 50 to 1,000%, preferably 100 to 600% relative to the weight of the nonionic polymer. If the ionic polymer is included in less than 100% of the weight of the nonionic polymer, the barrier film and the adhesion between the film is poor may cause a problem that the barrier film is peeled off. On the contrary, when the ionic polymer exceeds 600% by weight of the nonionic polymer, the coating property may be deteriorated.
- the polymerizable monomer is preferably contained 10 to 30%, preferably 15 to 25% relative to the weight of the ionic polymer. If the polymerizable monomer is included in less than 1% by weight of the ionic polymer may cause a problem that the adhesion with the barrier film is lowered. On the contrary, when the polymerizable monomer is included in excess of 30% by weight of the ionic polymer, the curing reaction proceeds even at room temperature, which may cause a problem in that the stability and coatability of the composition for forming a light conversion film are significantly reduced.
- the most preferable content of the polymerizable monomer is 20% by weight of the ionic polymer.
- the polymerizable monomer is more preferably glycidyl (glycidyl), but is not limited to this, aldehyde (aldehyde), dialdehyde (dialdehyde), isocyanate (isocynate), alcohol (alcohol) and the like Can be used.
- FIG. 1 illustrates a light conversion device according to an exemplary embodiment of the present application, and a barrier film including a transparent substrate and a barrier layer is provided at both sides of the light conversion film. At this time, the barrier layer of the barrier film is disposed in contact with the light conversion film.
- the photoconversion device comprises a composition for a photoconversion film, such as one or more organic fluorescent dyes, light diffusing particles, and at least one ionic polymer, on a barrier film comprising a transparent substrate and a barrier layer.
- a composition comprising a binder resin, a polymerizable monomer and a polymerizable initiator, and cured or dried as necessary to prepare a light conversion film
- a barrier film comprising a transparent substrate and a barrier layer on the light conversion film It can be formed by laminating. At this time, the lamination of the light conversion film and the barrier film, due to the presence of the ionic polymer, can be performed without the help of a separate adhesive or adhesive.
- the curing method and conditions may be determined according to the type of binder resin or other components including an ionic polymer.
- the transparent substrate may include a resin such as PET, but is not limited thereto, and a transparent plastic film or substrate known in the art may be used. Although the light conversion film is shown in one layer in FIG. 1, two or more light conversion films may be laminated as necessary.
- the permeability of oxygen and moisture of the barrier layer may be, for example, 10 ⁇ 1 cc / m 2 / day or less. This is referred to as an example of the barrier film, the oxygen and moisture permeability of the barrier layer may have a different value.
- the light conversion film is a light conversion fluorescence diffusion film including one or more light diffusion particles. That is, the light conversion film included in FIG. 2 includes a polymer medium including at least one organic fluorescent dye, at least one light diffusing particle, and at least one ionic polymer.
- the light diffusing particles serve to diffuse light incident from the light source into the light conversion film.
- the light diffusing particles may include TiO 2 or silica particles, but are not limited thereto.
- the above description may be applied to a barrier film, an organic fluorescent dye, and a polymer medium including a transparent substrate and a barrier layer.
- the light conversion element according to FIG. 3 further includes a light extraction plate.
- a light extraction plate Specifically, in a structure in which a barrier film including a transparent substrate and a barrier layer is laminated on both surfaces of the light conversion film, an adhesive layer or an adhesive layer is provided on an opposite side of the surface of the barrier film that faces the light conversion film.
- the light extraction plate is attached thereto.
- the light extraction plate is not particularly limited as long as it is known in the art to increase the conversion efficiency of the light conversion film.
- Figure 4 illustrates a structure of a light conversion element in which a plurality of light conversion film is disposed sequentially.
- the light conversion element is a barrier film including the transparent substrate and a barrier layer formed on the transparent substrate;
- a first light conversion film in which a first organic fluorescent dye applied on the barrier film and, if necessary, light diffusion particles are dispersed in a polymer medium comprising at least one ionic polymer;
- a second organic fluorescent dye prepared in the same manner on the first light conversion film and, if necessary, a second light conversion film dispersed in a polymer medium containing at least one ionic polymer.
- the second light conversion film may be directly stacked on the first light conversion film, and in this case, due to the presence of the ionic polymer, no help of an adhesive or an adhesive is required. .
- the scope of the present invention is not limited to FIG. 4, and the first light conversion film and the second light conversion film may be disposed apart from each other. In this case, another additional film may be provided between the first light conversion film and the second light conversion film.
- a structure including two light conversion films is illustrated in FIG. 4, three or more light conversion films may be laminated as necessary.
- the light conversion device including the plurality of light conversion films may further include a light extraction plate attached through an adhesive layer or an adhesive layer, as in FIG. 3, and such a structure is illustrated in FIG. 5.
- a light extraction plate attached through an adhesive layer or an adhesive layer, as in FIG. 3, and such a structure is illustrated in FIG. 5.
- the plurality of light conversion films may be arranged to have a long emission wavelength, for example, away from the light source, for example, the first and second light conversion films may be red and green light conversion films, respectively. Can be. As a result, light absorbed from a single color LED light source may be converted into white light while passing through a plurality of light conversion films.
- the arrangement of the plurality of light conversion films is merely exemplary, and the arrangement and / or structure for increasing the conversion efficiency of each light conversion film is not particularly limited as long as it is known in the art.
- the backlight unit may have a configuration known in the art except for the light conversion element.
- the backlight unit may include an edge type light source; A light guide plate configured to diffuse light received from the edge light source; And it may include a light conversion element provided on one surface of the light guide plate.
- the backlight unit may include a direct light source and a light conversion element provided on one surface of the direct light source.
- a reflective plate may be provided on an opposite side of the light guide plate to the light conversion element, and a light collecting sheet, a brightness enhancement sheet, and the like may be further provided on the opposite side of the light conversion element to the light source or the light guide plate. .
- the display device may have a configuration known in the art except for the light conversion element included in the backlight unit.
- the display module may include a display module provided on one surface of the backlight unit.
- the display module may be a liquid crystal module including a thin film transistor and a color filter.
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Abstract
Description
구분 | 접착성 | |
실시예 | 실시예1 | O |
실시예2 | O | |
비교예 | 비교예1 | X |
비교예2 | X |
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CN201680008839.7A CN107210348B (zh) | 2015-02-06 | 2016-02-05 | 光转换膜及包括其的光转换元件和显示装置 |
JP2017539007A JP6562477B2 (ja) | 2015-02-06 | 2016-02-05 | 光変換フィルムおよびこれを含む光変換素子およびディスプレイ装置 |
US15/546,194 US10407614B2 (en) | 2015-02-06 | 2016-02-05 | Photoconversion film, and photoconversion element and display device comprising same |
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WO2016122286A1 (ko) * | 2015-01-31 | 2016-08-04 | 주식회사 엘지화학 | 광전환 소자 및 이를 포함하는 디스플레이 장치 |
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KR102150150B1 (ko) * | 2017-11-28 | 2020-08-31 | 주식회사 엘지화학 | 색변환 필름, 및 이를 포함하는 백라이트 유닛 및 디스플레이 장치 |
CN109546005B (zh) * | 2018-12-07 | 2022-01-14 | 京东方科技集团股份有限公司 | 显示模组及其制备方法 |
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- 2016-02-05 JP JP2017539007A patent/JP6562477B2/ja active Active
- 2016-02-05 CN CN201680008839.7A patent/CN107210348B/zh active Active
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- 2016-02-05 US US15/546,194 patent/US10407614B2/en active Active
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US20180016490A1 (en) | 2018-01-18 |
KR20160097155A (ko) | 2016-08-17 |
CN107210348A (zh) | 2017-09-26 |
US10407614B2 (en) | 2019-09-10 |
CN107210348B (zh) | 2019-05-14 |
KR101770501B1 (ko) | 2017-09-05 |
JP2018507436A (ja) | 2018-03-15 |
JP6562477B2 (ja) | 2019-08-21 |
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