WO2024071912A1 - Film optique à hystérésis élastique améliorée - Google Patents

Film optique à hystérésis élastique améliorée Download PDF

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Publication number
WO2024071912A1
WO2024071912A1 PCT/KR2023/014668 KR2023014668W WO2024071912A1 WO 2024071912 A1 WO2024071912 A1 WO 2024071912A1 KR 2023014668 W KR2023014668 W KR 2023014668W WO 2024071912 A1 WO2024071912 A1 WO 2024071912A1
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Prior art keywords
optical film
filler
strain
equation
light
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PCT/KR2023/014668
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English (en)
Korean (ko)
Inventor
양종원
권경욱
박효준
Original Assignee
코오롱인더스트리 주식회사
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Priority claimed from KR1020230127122A external-priority patent/KR20240045115A/ko
Application filed by 코오롱인더스트리 주식회사 filed Critical 코오롱인더스트리 주식회사
Publication of WO2024071912A1 publication Critical patent/WO2024071912A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass

Definitions

  • the present invention relates to an optical film and a display device including the same, and particularly to an optical film having excellent mechanical properties.
  • optical films instead of glass as cover windows.
  • an optical film In order for an optical film to be used as a cover window of a display device, it is necessary to have excellent mechanical properties as well as excellent optical properties.
  • the optical film needs to have excellent strength, hardness, wear resistance, and flexibility properties.
  • Fillers may vary depending on the physical properties required for the optical film.
  • One embodiment of the present invention seeks to provide an optical film comprising a fiber-shaped or filament-shaped filler dispersed in a light-transmissive matrix.
  • Another embodiment of the present invention seeks to provide an optical film having an S/S index of 0.6 or more.
  • Another embodiment of the present invention seeks to provide an optical film having a yield tensile strength in the range of 90 to 160 MPa.
  • Another embodiment of the present invention seeks to provide an optical film having a modulus in the range of 4.0 to 15 GPa.
  • Another embodiment of the present invention seeks to provide an optical film with excellent resilience.
  • the optical film according to an embodiment of the present invention which has excellent resilience, can be usefully applied to a display device.
  • Another embodiment of the present invention seeks to provide a display device including the optical film.
  • One embodiment of the present invention provides an optical film including a light-transmissive matrix and a filler dispersed in the light-transmissive matrix, and having an S/S index of 0.6 or more.
  • the S/S index can be calculated using Equation 1 below.
  • Equation 1 the stress hysteresis can be calculated using Equation 2 below.
  • the strain hysteresis can be calculated using Equation 3 below.
  • the maximum compressive load refers to the maximum value of the compressive load applied when attempting to return to the original state after tensioning
  • the total load (N) is the sum of the tensile load and the compressive load
  • the tensile load refers to the load required to be tensile to a specific strain
  • the compressive load refers to the load applied when trying to return to the original state after tensioning
  • the strain 1 is the strain before deformation of the optical film
  • the strain 2 is the strain after deformation of the optical film.
  • Another embodiment of the present invention provides a display device including a display panel and the optical film disposed on the display panel.
  • the filler included in the optical film has a fiber shape or a filament shape, so that the mechanical strength of the optical film can be improved.
  • the yield tensile strength can be increased and the elastic force can be improved.
  • resilience can be improved when the optical film according to an embodiment of the present invention is used in a display device.
  • hysteresis is improved when the S/S index of the optical film is high. And, when hysteresis is improved, less marks are created when the optical film is folded, and when the film is pressed with the same force, the force of returning it to its original state is greater.
  • FIG. 1 is a schematic diagram of an optical film according to an embodiment of the present invention.
  • Figure 2 is a cross-sectional view of a portion of a display device according to another embodiment of the present invention.
  • Figure 3 is an enlarged cross-sectional view of portion "P" in Figure 2.
  • Spatially relative terms such as “below, beneath,” “lower,” “above,” and “upper” refer to one element or component as shown in the drawing. It can be used to easily describe the correlation with other elements or components. Spatially relative terms should be understood as terms that include different directions of the element during use or operation in addition to the direction shown in the drawings. For example, if an element shown in the drawings is turned over, an element described as “below” or “beneath” another element may be placed “above” the other element. Accordingly, the illustrative term “down” may include both downward and upward directions. Likewise, the illustrative terms “up” or “on” can include both up and down directions.
  • first, second, etc. are used to describe various components, these components are not limited by these terms. These terms are merely used to distinguish one component from another. Accordingly, the first component mentioned below may also be the second component within the technical spirit of the present invention.
  • At least one should be understood to include all possible combinations from one or more related items.
  • “at least one of the first, second, and third items” means each of the first, second, or third items, as well as two of the first, second, and third items. It can mean a combination of all items that can be presented from more than one.
  • FIG. 1 is a schematic diagram of an optical film 100 according to an embodiment of the present invention.
  • a film having light transparency is called an optical film 100.
  • the optical film 100 includes a light-transmissive matrix 110 and a filler 120 dispersed in the light-transmissive matrix.
  • the light-transmitting matrix 110 has light-transmitting properties.
  • the light-transmissive matrix 110 may have flexible characteristics.
  • the light-transmitting matrix 110 may have bending characteristics, folding characteristics, or rollable characteristics.
  • the optical film 100 according to an embodiment of the present invention has light transparency and may have bending characteristics, folding characteristics, or rollable characteristics.
  • the light-transmissive matrix 110 may include at least one of an imide repeating unit and an amide repeating unit.
  • the light-transmissive matrix 110 may be manufactured from monomer components including, for example, dianhydride and diamine.
  • the light-transmissive matrix 110 may include an imide repeating unit formed by dianhydride and diamine.
  • the light-transmitting matrix 110 is not limited thereto, and the light-transmitting matrix 110 may be manufactured from monomer components containing a dicarbonyl compound in addition to dianhydride and diamine. You can.
  • the light-transmissive matrix 110 according to an embodiment of the present invention may have an imide repeating unit and an amide repeating unit.
  • the light-transmissive matrix 110 having an imide repeating unit and an amide repeating unit includes, for example, polyamide-imide resin.
  • the light-transmissive matrix 110 may include a polyimide-based polymer.
  • polyimide-based polymers include polyimide polymers and polyamide-imide polymers.
  • the light-transmissive matrix 110 according to an embodiment of the present invention may be made of, for example, polyimide-based polymer resin.
  • the light-transmissive matrix 110 may have a thickness sufficient for the optical film 100 to protect the display panel.
  • the light-transmissive matrix 110 may have a thickness of 10 to 100 ⁇ m.
  • the thickness of the light-transmissive matrix 110 may be the same as the thickness of the optical film 100.
  • the aspect ratio of the pillar 120 may range from 5 to 2,500.
  • the aspect ratio is the ratio of the length to the diameter of the pillar 120.
  • the filler 120 is not long enough and the function of linking the polymer chains to each other is not sufficiently exercised, so the effect of improving the stability and arrangement characteristics of the polymer chains may not be sufficiently exerted.
  • the length of the filler 120 is too long, which may reduce the dispersibility of the filler 120 and cause aggregation of the filler 120 within the light-transmissive matrix 110. there is. As a result, the light transmittance of the optical film 100 may decrease and haze may increase, and the optical properties of the optical film 100 may deteriorate.
  • the mechanical strength of the optical film 100 may decrease in the area where agglomeration of the filler 120 occurs, and as a result, the modulus of the optical film 100 may decrease, and the optical film 100 ) the mechanical strength may decrease.
  • the length of the filler 120 may range from 0.1 to 5 um.
  • the filler 120 may not sufficiently perform the function of linking polymer chains together.
  • the length of the filler 120 exceeds 5 um, the dispersibility of the filler 120 may decrease, and as a result, agglomeration of the filler 120 may occur within the light-transmissive matrix 110, and the polymer chain may Gel formation is likely to occur due to interaction with . Accordingly, the light transmittance of the optical film 100 may decrease and haze may increase, and the optical properties of the optical film 100 may deteriorate.
  • the diameter of the filler 120 may range from 2 to 20 nm. The diameter is measured in a direction perpendicular to the longitudinal direction.
  • the diameter of the filler 120 is less than 2 nm, the stability of the filler 120 may decrease, the filler may break or break, contaminating the optical film 100, and the haze of the optical film 100 may increase. .
  • the diameter of the filler 120 is more than 20 nm, it may be difficult for the filler 120 to have a wire shape, the ability to weave polymer chains together may be reduced, and the optical film 100 may increase or transmittance may decrease. It can be.
  • filler 120 There is no particular limitation on the type of filler 120. If it has a fiber shape, it can be used as the filler 120 according to an embodiment of the present invention without limitation to its type.
  • the filler 120 may be inorganic or organic.
  • the filler 120 may include at least one of inorganic fibers, organic fibers, and organic-inorganic composite fibers.
  • the filler 120 may have a fiber shape or a filament shape.
  • the filler 120 may have a single-stranded fiber shape, a multi-stranded fiber shape, or a shape in which multiple strands are arranged in the form of branches on one central strand. You can have it.
  • the filler 120 may include at least one of glass fiber, aluminum fiber, and fluoride fiber.
  • Glass fiber contains SiO 2 and may further contain other components in addition to SiO 2 .
  • Aluminum fibers contain Al 2 O 3 and may further contain other components in addition to Al 2 O 3 .
  • the fluorine fiber may contain at least one of PTFE (Polytetrafluoroethylene) and PVDF (Polyvinylidene Fluoride), and may further contain other ingredients in addition to PTFE and PVDF.
  • the filler 120 may include at least one of aluminum oxide hydroxide, SiO 2 , Al 2 O 3 , polytetrafluoroethylene (PTFE), and polyvinylidene fluoride (PVDF).
  • aluminum oxide hydroxide SiO 2 , Al 2 O 3
  • PTFE polytetrafluoroethylene
  • PVDF polyvinylidene fluoride
  • the filler 120 may be surface treated.
  • fibers surface-treated with an organic compound group having an alkoxy group may be used as the filler 120.
  • aluminum fiber may include at least one of aluminum oxide hydroxide and Al 2 O 3 .
  • Aluminum oxide hydroxide is also called Boehmite and can be expressed as ⁇ -AlO(OH). More specifically, alumina hydroxide may include a structure represented by any of the following formulas 1, 2, and 3.
  • n ranges from 100 to 20,000
  • m ranges from 50 to 10,000
  • p ranges from 50 to 10,000.
  • the filler 120 may include a structure represented by any of the following Chemical Formulas 4, 5, and 6.
  • Chemical Formula 1 may be expressed, for example, by Chemical Formula 4 below.
  • Formula 4 below corresponds to the case where n is 3 in Formula 1.
  • Formula 2 may be expressed, for example, by Formula 5 below.
  • Formula 5 below corresponds to the case where m is 4 in Formula 2.
  • Chemical Formula 3 may be expressed, for example, by Chemical Formula 6 below.
  • Formula 6 below corresponds to the case where p is 5 in Formula 3.
  • Al 2 O 3 may have a unit structure represented by the following Chemical Formula 7.
  • SiO 2 may have a unit structure represented by the following Chemical Formula 8.
  • the filler 120 when the filler 120 is added, appropriate light scattering occurs by the filler 120, so that the optical properties of the optical film 100 can be improved.
  • the content of the filler 120 included in the optical film 100 may be adjusted.
  • the content of the filler 120 may be 3 to 50 PHR based on 100 weight of the light-transmissive matrix 110. More specifically, the content of the filler 120 may be adjusted to 4 to 30 PHR, or 5 to 20 PHR, based on 100 weight of the light-transmitting matrix 110.
  • the filler 120 may not sufficiently function to bind the polymer chains together.
  • the content of the filler 120 exceeds 50 PHR per 100 weight of the light-transmitting matrix 110, the dispersibility of the filler 120 decreases, and the haze of the optical film 100 decreases. brittleness may increase, agglomeration of the filler 120 may occur due to an excessive amount of filler 120, and the agglomerated filler 120 may block light, thereby lowering the light transmittance of the optical film 100. You can.
  • FIG. 2 is a cross-sectional view of a portion of the display device 200 according to another embodiment of the present invention
  • FIG. 3 is an enlarged cross-sectional view of the “P” portion of FIG. 2.
  • a display device 200 includes a display panel 501 and an optical film 100 on the display panel 501.
  • the display panel 501 includes a substrate 510, a thin film transistor (TFT) on the substrate 510, and an organic light emitting device 570 connected to the thin film transistor (TFT).
  • the organic light emitting device 570 includes a first electrode 571, an organic light emitting layer 572 on the first electrode 571, and a second electrode 573 on the organic light emitting layer 572.
  • the display device 200 disclosed in FIGS. 2 and 3 is, for example, an organic light emitting display device.
  • Substrate 510 may be made of glass or plastic. Specifically, the substrate 510 may be made of plastic such as polyimide resin or optical film. Although not shown, a buffer layer may be disposed on the substrate 510.
  • a thin film transistor is disposed on the substrate 510.
  • the thin film transistor (TFT) includes a semiconductor layer 520, a gate electrode 530 that is insulated from the semiconductor layer 520 and overlaps at least a portion of the semiconductor layer 520, a source electrode 541 connected to the semiconductor layer 520, and It includes a drain electrode 542 spaced apart from the source electrode 541 and connected to the semiconductor layer 520.
  • a gate insulating film 535 is disposed between the gate electrode 530 and the semiconductor layer 520.
  • An interlayer insulating film 551 may be disposed on the gate electrode 530, and a source electrode 541 and a drain electrode 542 may be disposed on the interlayer insulating film 551.
  • the planarization film 552 is disposed on the thin film transistor (TFT) to planarize the top of the thin film transistor (TFT).
  • the first electrode 571 is disposed on the planarization film 552.
  • the first electrode 571 is connected to the thin film transistor (TFT) through a contact hole provided in the planarization film 552.
  • the bank layer 580 is disposed on a portion of the first electrode 571 and the planarization film 552 to define a pixel area or a light emitting area.
  • the bank layer 580 may be arranged in a matrix structure in the boundary area between a plurality of pixels, so that the pixel area may be defined by the bank layer 580.
  • the organic light emitting layer 572 is disposed on the first electrode 571.
  • the organic light emitting layer 572 may also be disposed on the bank layer 580.
  • the organic light-emitting layer 572 may include one light-emitting layer or two light-emitting layers stacked top and bottom. This organic light-emitting layer 572 may emit light having any one of red, green, and blue colors, and may also emit white light.
  • the second electrode 573 is disposed on the organic light emitting layer 572.
  • the organic light emitting device 270 may be formed by stacking the first electrode 571, the organic light emitting layer 572, and the second electrode 573.
  • each pixel may include a color filter to filter the white light emitted from the organic emission layer 572 by wavelength.
  • a color filter is formed on the path of light.
  • a thin film encapsulation layer 590 may be disposed on the second electrode 573.
  • the thin film encapsulation layer 590 may include at least one organic layer and at least one inorganic layer, and at least one organic layer and at least one inorganic layer may be alternately disposed.
  • the optical film 100 is disposed on the display panel 501 having the laminated structure described above.
  • the optical film 100 includes a light-transmissive matrix 110 and a filler 120 dispersed in the light-transmissive matrix 110.
  • the S/S index of the optical film 100 is 0.6 or more, and the S/S index is calculated using Equation 1 below.
  • Equation 1 the stress hysteresis can be calculated using Equation 2 below.
  • the strain hysteresis can be calculated using Equation 3 below.
  • the maximum compressive load refers to the maximum value of the compressive load applied when attempting to return to the original state after tensioning
  • the total load (N) is the sum of the tensile load and the compressive load
  • the tensile load refers to the load required to be tensile to a specific strain
  • the compressive load refers to the load applied when trying to return to the original state after tensioning
  • the strain 1 is the strain before deformation of the optical film
  • the strain 2 is the strain after deformation of the optical film.
  • the hysteresis of the optical film may not be improved.
  • traces may appear, and when the film is pressed with the same force, the force to return it to its original state may be small.
  • the optical film 100 may have a yield tensile strength in the range of 90 to 160 MPa. More specifically, the optical film 100 may have a yield tensile strength ranging from 100 to 150 MPa, and may also range from 120 to 145 MPa.
  • the yield tensile strength of the optical film 100 is less than 90 MPa, the yield point is low and the energy in the elastic section is low, so it may be vulnerable to deformation. As a result, the restoration force may be weak when the film is folded or pressed.
  • the optical film 100 may have a modulus in the range of 4.0 to 15 GPa. More specifically, the optical film 100 may have a modulus ranging from 6 to 13 GPa, and may also range from 8 to 12 GPa.
  • the modulus of the optical film 100 is less than 4.0 GPa, the hardness characteristics are weak, so it can be easily scratched or deformed by external force, and the yield point is also low, so the energy in the elastic section is low, making it vulnerable to deformation. As a result, the restoration force may be weak when the film is folded or pressed.
  • the modulus of the optical film 100 is greater than 15 GPa, deformation may easily occur due to external force, which may cause bending of the optical film 100. Additionally, the difference in drag between the optical film 100 and other materials increases, and as a result, separation or folding between the optical film 100 and other materials may occur when the display device 200 is folded.
  • the method of manufacturing the optical film 100 includes the steps of producing a first mixed solution by first dispersing the filler 120 in a resin solution for forming the polymer matrix 110, and casting the first mixed solution. It may include the step of manufacturing a cast film.
  • a polyimide-based resin solution may be used as a resin solution for forming the polymer matrix 110.
  • the method of manufacturing the optical film 100 includes manufacturing polyimide-based resin powder, dissolving the polyimide-based resin powder in a first solvent to prepare a polyimide-based resin solution. It may include preparing a filler dispersion, preparing a filler dispersion, and mixing a filler dispersion and a polyimide resin solution to prepare a first mixed solution.
  • the filler dispersion may be prepared, for example, by dispersing the filler 120 in a second solvent.
  • DMAc N,N-Dimethylacetamide
  • DMAc N,N-Dimethylacetamide
  • MEK methyl ethyl ketone
  • one embodiment of the present invention is not limited to this, and other solvents known as the first solvent and the second solvent may be used.
  • the pH of the first mixed solution may be adjusted.
  • the pH of the first mixed solution may be adjusted to a range of 5 to 7. Accordingly, agglomeration or agglomeration of the filler 120 can be prevented.
  • the first mixed solution may be cast, dried, and heat treated to form the optical film 100.
  • a film formed by casting the first mixed solution may be referred to as a cast film, and a film manufactured by drying and heat treating the cast film may be referred to as the optical film 100.
  • Cast film can be said to be an uncured film.
  • convection can be prevented during the drying and heat treatment process of the cast film formed by casting, so that the filler 120 can be oriented in a certain direction.
  • the orientation of the filler 120 may decrease. Therefore, the cast film can be allowed to dry slowly to prevent convection. For example, drying of the cast film may be carried out while increasing the temperature from 80°C to 120°C at a temperature increase rate of 1°C/1 minute (1 degree/1 minute). When dried above a certain level, the orientation of the filler 120 may be fixed.
  • the solid content of the polyimide-based polymer produced here is a solid content of polyamide-imide polymer.
  • alumina hydrate filler dispersion consisting of 10% by weight of the alumina hydrate filler with an average particle diameter of 4 nm and an average length of 1500 nm was dispersed in a DMAc (N,N-dimethylacetamide) solution (second solvent).
  • DMAc N,N-dimethylacetamide
  • the prepared liquid polyimide-based resin solution was slowly added for 1 hour using a cylinder pump to prepare a first mixed solution containing a silica dispersion and a polyimide-based resin solution.
  • the pH of the first mixed solution When the pH of the first mixed solution is measured immediately after preparing the first mixed solution, the pH is 8 or higher.
  • a weak acid such as acetic acid is added to the first mixed solution to adjust the pH of the first mixed solution to a range of 5 to 7.
  • the first mixed solution prepared in this way is a polyimide-based resin solution in which the fibrous filler 120 is dispersed.
  • a casting substrate is used for casting.
  • a glass substrate stainless steel (SUS) substrate, Teflon substrate, etc. may be used.
  • a glass substrate may be used as a casting substrate.
  • a film was manufactured by placing it in a hot air oven at 80°C and slowly drying it at 120°C for about 40 minutes at a rate of 1°C/min. The manufactured film was placed on a glass substrate. It was peeled off and fixed to the frame with pins.
  • the frame on which the film was fixed was placed in a vacuum oven and slowly heated from 100°C to 280°C for 2 hours, then slowly cooled and separated from the frame to obtain an optical film.
  • the optical film was again heat treated at 250°C for 5 minutes.
  • an optical film 100 was manufactured in the same manner as Example 1, and these were referred to as Examples 2-4, respectively.
  • Example 1 100 12 27 61 Filler 1 5
  • Example 2 100 12 27 61 Filler 1 10
  • Example 3 100 12 27 61 Filler 1 15
  • Comparative Example 1 100 12 27 61 Not added 0
  • Comparative example 2 100 12 27 61
  • Filler 2 10
  • Comparative example 3 100 12 27 61 Filler 1 2.5
  • Comparative example 4 100 12 27 61 Filler 1 51
  • filler 1 is a nanowire with an aspect ratio of 375
  • filler 2 is a nanoparticle with a particle diameter of 20 nm.
  • pillar 1 has a length of 1.5 ⁇ m and a diameter of 4 nm.
  • the molar ratio represents the relative molar ratio with respect to the total 100 moles of diamine.
  • PHR stands for Per Hundred Resin, meaning the weight (g) of the filler per 100 weight (g) of the light-transmitting matrix.
  • PHR according to an embodiment of the present invention means the weight (g) of filler added per 100 weight (g) of solid content of polyimide-based polymer.
  • the modulus of the optical film was measured using an Instron universal tensile tester (MODEL 5967).
  • Example 1 8.12 125 44.05 3.28 47.33 6.930 0 0.085 8.500 0.665
  • Example 2 9.98 130 46.20 3.40 49.60 6.855 0 0.087 8.700 0.621
  • Example 3 11.3 144 55.50 4.47 59.97 7.454 0 0.091 9.100 0.671 Comparative Example 1 6.51 105 30.10 1.75 31.85 5.495 0 0.077 7.700 0.509 Comparative Example 2 6.73 110 31.20 1.88 33.08 5.683 0 0.081 8.100 0.492 Comparative Example 3 7.15 110 35.00 2.10 37.10 5.660 0 0.079 7.900 0.513 Comparative Example 4 15.50 158 61.70 5.10 66.80 7.635
  • the optical film 100 according to an embodiment of the present invention has an S/S index of 0.6 or more.

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  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

L'invention concerne un film optique et un dispositif d'affichage le comprenant, le film optique selon un mode de réalisation de la présente invention comprenant une matrice transmettant la lumière, et une charge dispersée dans celle-ci, et ayant un indice S/S supérieur ou égal à 0,6.
PCT/KR2023/014668 2022-09-29 2023-09-25 Film optique à hystérésis élastique améliorée WO2024071912A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20220124101 2022-09-29
KR10-2022-0124101 2022-09-29
KR1020230127122A KR20240045115A (ko) 2022-09-29 2023-09-22 탄성이력이 개선된 광학필름
KR10-2023-0127122 2023-09-22

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004015013A1 (fr) * 2002-08-07 2004-02-19 Teijin Limited Composition de resine thermoplastique et article moule
JP2004149687A (ja) * 2002-10-31 2004-05-27 Teijin Ltd 被覆繊維状酸化アルミニウムフィラー及びこれを含む熱可塑性樹脂組成物
JP2007238750A (ja) * 2006-03-08 2007-09-20 Nichias Corp 樹脂ペースト及び伝熱構造体
JP2018095715A (ja) * 2016-12-12 2018-06-21 コニカミノルタ株式会社 ポリイミドフィルムおよび当該フィルムを用いる表示装置
WO2021221118A1 (fr) * 2020-04-30 2021-11-04 太陽ホールディングス株式会社 Composition de résine et film l'utilisant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004015013A1 (fr) * 2002-08-07 2004-02-19 Teijin Limited Composition de resine thermoplastique et article moule
JP2004149687A (ja) * 2002-10-31 2004-05-27 Teijin Ltd 被覆繊維状酸化アルミニウムフィラー及びこれを含む熱可塑性樹脂組成物
JP2007238750A (ja) * 2006-03-08 2007-09-20 Nichias Corp 樹脂ペースト及び伝熱構造体
JP2018095715A (ja) * 2016-12-12 2018-06-21 コニカミノルタ株式会社 ポリイミドフィルムおよび当該フィルムを用いる表示装置
WO2021221118A1 (fr) * 2020-04-30 2021-11-04 太陽ホールディングス株式会社 Composition de résine et film l'utilisant

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